DevVGA.cpp@ 76985

Last change on this file since 76985 was 76985, checked in by vboxsync, 6 years ago
Graphics/VMSVGA: make VBoxSVGA compatibility with old vboxvideo drivers. bugref:9359: EFI GOP support for VMSVGA. VBoxSVGA changed the BAR layout with respect to the old vboxvideo, but remained otherwise compatible. This change makes it work with vboxvideo drivers on Linux.
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File size: 246.7 KB

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1	/* $Id: DevVGA.cpp 76985 2019-01-25 11:42:07Z vboxsync $ */
2	/** @file
3	* DevVGA - VBox VGA/VESA device.
4	*/
5
6	/*
7	* Copyright (C) 2006-2019 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	* --------------------------------------------------------------------
17	*
18	* This code is based on:
19	*
20	* QEMU VGA Emulator.
21	*
22	* Copyright (c) 2003 Fabrice Bellard
23	*
24	* Permission is hereby granted, free of charge, to any person obtaining a copy
25	* of this software and associated documentation files (the "Software"), to deal
26	* in the Software without restriction, including without limitation the rights
27	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
28	* copies of the Software, and to permit persons to whom the Software is
29	* furnished to do so, subject to the following conditions:
30	*
31	* The above copyright notice and this permission notice shall be included in
32	* all copies or substantial portions of the Software.
33	*
34	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
37	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
38	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
39	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
40	* THE SOFTWARE.
41	*/
42
43
44	/*********************************************************************************************************************************
45	* Defined Constants And Macros *
46	*********************************************************************************************************************************/
47
48	/* WARNING!!! All defines that affect VGAState should be placed to DevVGA.h !!!
49	* NEVER place them here as this would lead to VGASTATE inconsistency
50	* across different .cpp files !!!
51	*/
52	/** The size of the VGA GC mapping.
53	* This is supposed to be all the VGA memory accessible to the guest.
54	* The initial value was 256KB but NTAllInOne.iso appears to access more
55	* thus the limit was upped to 512KB.
56	*
57	* @todo Someone with some VGA knowhow should make a better guess at this value.
58	*/
59	#define VGA_MAPPING_SIZE _512K
60
61	#ifdef VBOX_WITH_HGSMI
62	#define PCIDEV_2_VGASTATE(pPciDev) ((PVGASTATE)((uintptr_t)pPciDev - RT_OFFSETOF(VGASTATE, Dev)))
63	#endif /* VBOX_WITH_HGSMI */
64	/** Converts a vga adaptor state pointer to a device instance pointer. */
65	#define VGASTATE2DEVINS(pVgaState) ((pVgaState)->CTX_SUFF(pDevIns))
66
67	/** Check buffer if an VRAM offset is within the right range or not. */
68	#if defined(IN_RC) \|\| defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
69	# define VERIFY_VRAM_WRITE_OFF_RETURN(pThis, off) \
70	do { \
71	if ((off) < VGA_MAPPING_SIZE) \
72	RT_UNTRUSTED_VALIDATED_FENCE(); \
73	else \
74	{ \
75	AssertMsgReturn((off) < (pThis)->vram_size, ("%RX32 !< %RX32\n", (uint32_t)(off), (pThis)->vram_size), VINF_SUCCESS); \
76	Log2(("%Rfn[%d]: %RX32 -> R3\n", __PRETTY_FUNCTION__, __LINE__, (off))); \
77	return VINF_IOM_R3_MMIO_WRITE; \
78	} \
79	} while (0)
80	#else
81	# define VERIFY_VRAM_WRITE_OFF_RETURN(pThis, off) \
82	do { \
83	AssertMsgReturn((off) < (pThis)->vram_size, ("%RX32 !< %RX32\n", (uint32_t)(off), (pThis)->vram_size), VINF_SUCCESS); \
84	RT_UNTRUSTED_VALIDATED_FENCE(); \
85	} while (0)
86	#endif
87
88	/** Check buffer if an VRAM offset is within the right range or not. */
89	#if defined(IN_RC) \|\| defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
90	# define VERIFY_VRAM_READ_OFF_RETURN(pThis, off, rcVar) \
91	do { \
92	if ((off) < VGA_MAPPING_SIZE) \
93	RT_UNTRUSTED_VALIDATED_FENCE(); \
94	else \
95	{ \
96	AssertMsgReturn((off) < (pThis)->vram_size, ("%RX32 !< %RX32\n", (uint32_t)(off), (pThis)->vram_size), 0xff); \
97	Log2(("%Rfn[%d]: %RX32 -> R3\n", __PRETTY_FUNCTION__, __LINE__, (off))); \
98	(rcVar) = VINF_IOM_R3_MMIO_READ; \
99	return 0; \
100	} \
101	} while (0)
102	#else
103	# define VERIFY_VRAM_READ_OFF_RETURN(pThis, off, rcVar) \
104	do { \
105	AssertMsgReturn((off) < (pThis)->vram_size, ("%RX32 !< %RX32\n", (uint32_t)(off), (pThis)->vram_size), 0xff); \
106	RT_UNTRUSTED_VALIDATED_FENCE(); \
107	NOREF(rcVar); \
108	} while (0)
109	#endif
110
111	/* VGA text mode blinking constants (cursor and blinking chars). */
112	#define VGA_BLINK_PERIOD_FULL (RT_NS_100MS * 4) /* Blink cycle length. */
113	#define VGA_BLINK_PERIOD_ON (RT_NS_100MS * 2) /* How long cursor/text is visible. */
114
115
116	/*********************************************************************************************************************************
117	* Header Files *
118	*********************************************************************************************************************************/
119	#define LOG_GROUP LOG_GROUP_DEV_VGA
120	#include <VBox/vmm/pdmdev.h>
121	#include <VBox/vmm/pgm.h>
122	#ifdef IN_RING3
123	# include <iprt/cdefs.h>
124	# include <iprt/mem.h>
125	# include <iprt/ctype.h>
126	#endif /* IN_RING3 */
127	#include <iprt/assert.h>
128	#include <iprt/asm.h>
129	#include <iprt/file.h>
130	#include <iprt/time.h>
131	#include <iprt/string.h>
132	#include <iprt/uuid.h>
133
134	#include <VBox/VMMDev.h>
135	#include <VBoxVideo.h>
136	#include <VBox/bioslogo.h>
137
138	/* should go BEFORE any other DevVGA include to make all DevVGA.h config defines be visible */
139	#include "DevVGA.h"
140
141	#if defined(IN_RING3) && !defined(VBOX_DEVICE_STRUCT_TESTCASE)
142	# include "DevVGAModes.h"
143	# include <stdio.h> /* sscan */
144	#endif
145
146	#include "VBoxDD.h"
147	#include "VBoxDD2.h"
148
149	#ifdef VBOX_WITH_VMSVGA
150	#include "DevVGA-SVGA.h"
151	#endif
152
153
154	/*********************************************************************************************************************************
155	* Structures and Typedefs *
156	*********************************************************************************************************************************/
157	#pragma pack(1)
158
159	/** BMP File Format Bitmap Header. */
160	typedef struct
161	{
162	uint16_t Type; /* File Type Identifier */
163	uint32_t FileSize; /* Size of File */
164	uint16_t Reserved1; /* Reserved (should be 0) */
165	uint16_t Reserved2; /* Reserved (should be 0) */
166	uint32_t Offset; /* Offset to bitmap data */
167	} BMPINFO;
168
169	/** Pointer to a bitmap header*/
170	typedef BMPINFO *PBMPINFO;
171
172	/** OS/2 1.x Information Header Format. */
173	typedef struct
174	{
175	uint32_t Size; /* Size of Remaining Header */
176	uint16_t Width; /* Width of Bitmap in Pixels */
177	uint16_t Height; /* Height of Bitmap in Pixels */
178	uint16_t Planes; /* Number of Planes */
179	uint16_t BitCount; /* Color Bits Per Pixel */
180	} OS2HDR;
181
182	/** Pointer to a OS/2 1.x header format */
183	typedef OS2HDR *POS2HDR;
184
185	/** OS/2 2.0 Information Header Format. */
186	typedef struct
187	{
188	uint32_t Size; /* Size of Remaining Header */
189	uint32_t Width; /* Width of Bitmap in Pixels */
190	uint32_t Height; /* Height of Bitmap in Pixels */
191	uint16_t Planes; /* Number of Planes */
192	uint16_t BitCount; /* Color Bits Per Pixel */
193	uint32_t Compression; /* Compression Scheme (0=none) */
194	uint32_t SizeImage; /* Size of bitmap in bytes */
195	uint32_t XPelsPerMeter; /* Horz. Resolution in Pixels/Meter */
196	uint32_t YPelsPerMeter; /* Vert. Resolution in Pixels/Meter */
197	uint32_t ClrUsed; /* Number of Colors in Color Table */
198	uint32_t ClrImportant; /* Number of Important Colors */
199	uint16_t Units; /* Resolution Measurement Used */
200	uint16_t Reserved; /* Reserved FIelds (always 0) */
201	uint16_t Recording; /* Orientation of Bitmap */
202	uint16_t Rendering; /* Halftone Algorithm Used on Image */
203	uint32_t Size1; /* Halftone Algorithm Data */
204	uint32_t Size2; /* Halftone Algorithm Data */
205	uint32_t ColorEncoding; /* Color Table Format (always 0) */
206	uint32_t Identifier; /* Misc. Field for Application Use */
207	} OS22HDR;
208
209	/** Pointer to a OS/2 2.0 header format */
210	typedef OS22HDR *POS22HDR;
211
212	/** Windows 3.x Information Header Format. */
213	typedef struct
214	{
215	uint32_t Size; /* Size of Remaining Header */
216	uint32_t Width; /* Width of Bitmap in Pixels */
217	uint32_t Height; /* Height of Bitmap in Pixels */
218	uint16_t Planes; /* Number of Planes */
219	uint16_t BitCount; /* Bits Per Pixel */
220	uint32_t Compression; /* Compression Scheme (0=none) */
221	uint32_t SizeImage; /* Size of bitmap in bytes */
222	uint32_t XPelsPerMeter; /* Horz. Resolution in Pixels/Meter */
223	uint32_t YPelsPerMeter; /* Vert. Resolution in Pixels/Meter */
224	uint32_t ClrUsed; /* Number of Colors in Color Table */
225	uint32_t ClrImportant; /* Number of Important Colors */
226	} WINHDR;
227
228	/** Pointer to a Windows 3.x header format */
229	typedef WINHDR *PWINHDR;
230
231	#pragma pack()
232
233	#define BMP_ID 0x4D42
234
235	/** @name BMP compressions.
236	* @{ */
237	#define BMP_COMPRESS_NONE 0
238	#define BMP_COMPRESS_RLE8 1
239	#define BMP_COMPRESS_RLE4 2
240	/** @} */
241
242	/** @name BMP header sizes.
243	* @{ */
244	#define BMP_HEADER_OS21 12
245	#define BMP_HEADER_OS22 64
246	#define BMP_HEADER_WIN3 40
247	/** @} */
248
249	/** The BIOS boot menu text position, X. */
250	#define LOGO_F12TEXT_X 304
251	/** The BIOS boot menu text position, Y. */
252	#define LOGO_F12TEXT_Y 460
253
254	/** Width of the "Press F12 to select boot device." bitmap.
255	Anything that exceeds the limit of F12BootText below is filled with
256	background. */
257	#define LOGO_F12TEXT_WIDTH 286
258	/** Height of the boot device selection bitmap, see LOGO_F12TEXT_WIDTH. */
259	#define LOGO_F12TEXT_HEIGHT 12
260
261	/** The BIOS logo delay time (msec). */
262	#define LOGO_DELAY_TIME 2000
263
264	#define LOGO_MAX_WIDTH 640
265	#define LOGO_MAX_HEIGHT 480
266	#define LOGO_MAX_SIZE LOGO_MAX_WIDTH * LOGO_MAX_HEIGHT * 4
267
268
269	/*********************************************************************************************************************************
270	* Global Variables *
271	*********************************************************************************************************************************/
272	#ifdef IN_RING3
273	/* "Press F12 to select boot device." bitmap. */
274	static const uint8_t g_abLogoF12BootText[] =
275	{
276	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
277	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
278	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x07, 0x0F, 0x7C,
279	0xF8, 0xF0, 0x01, 0xE0, 0x81, 0x9F, 0x3F, 0x00, 0x70, 0xF8, 0x00, 0xE0, 0xC3,
280	0x07, 0x0F, 0x1F, 0x3E, 0x70, 0x00, 0xF0, 0xE1, 0xC3, 0x07, 0x0E, 0x00, 0x6E,
281	0x7C, 0x60, 0xE0, 0xE1, 0xC3, 0x07, 0xC6, 0x80, 0x81, 0x31, 0x63, 0xC6, 0x00,
282	0x30, 0x80, 0x61, 0x0C, 0x00, 0x36, 0x63, 0x00, 0x8C, 0x19, 0x83, 0x61, 0xCC,
283	0x18, 0x36, 0x00, 0xCC, 0x8C, 0x19, 0xC3, 0x06, 0xC0, 0x8C, 0x31, 0x3C, 0x30,
284	0x8C, 0x19, 0x83, 0x31, 0x60, 0x60, 0x00, 0x0C, 0x18, 0x00, 0x0C, 0x60, 0x18,
285	0x00, 0x80, 0xC1, 0x18, 0x00, 0x30, 0x06, 0x60, 0x18, 0x30, 0x80, 0x01, 0x00,
286	0x33, 0x63, 0xC6, 0x30, 0x00, 0x30, 0x63, 0x80, 0x19, 0x0C, 0x03, 0x06, 0x00,
287	0x0C, 0x18, 0x18, 0xC0, 0x81, 0x03, 0x00, 0x03, 0x18, 0x0C, 0x00, 0x60, 0x30,
288	0x06, 0x00, 0x87, 0x01, 0x18, 0x06, 0x0C, 0x60, 0x00, 0xC0, 0xCC, 0x98, 0x31,
289	0x0C, 0x00, 0xCC, 0x18, 0x30, 0x0C, 0xC3, 0x80, 0x01, 0x00, 0x03, 0x66, 0xFE,
290	0x18, 0x30, 0x00, 0xC0, 0x02, 0x06, 0x06, 0x00, 0x18, 0x8C, 0x01, 0x60, 0xE0,
291	0x0F, 0x86, 0x3F, 0x03, 0x18, 0x00, 0x30, 0x33, 0x66, 0x0C, 0x03, 0x00, 0x33,
292	0xFE, 0x0C, 0xC3, 0x30, 0xE0, 0x0F, 0xC0, 0x87, 0x9B, 0x31, 0x63, 0xC6, 0x00,
293	0xF0, 0x80, 0x01, 0x03, 0x00, 0x06, 0x63, 0x00, 0x8C, 0x19, 0x83, 0x61, 0xCC,
294	0x18, 0x06, 0x00, 0x6C, 0x8C, 0x19, 0xC3, 0x00, 0x80, 0x8D, 0x31, 0xC3, 0x30,
295	0x8C, 0x19, 0x03, 0x30, 0xB3, 0xC3, 0x87, 0x0F, 0x1F, 0x00, 0x2C, 0x60, 0x80,
296	0x01, 0xE0, 0x87, 0x0F, 0x00, 0x3E, 0x7C, 0x60, 0xF0, 0xE1, 0xE3, 0x07, 0x00,
297	0x0F, 0x3E, 0x7C, 0xFC, 0x00, 0xC0, 0xC3, 0xC7, 0x30, 0x0E, 0x3E, 0x7C, 0x00,
298	0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x1E, 0xC0, 0x00, 0x60, 0x00,
299	0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x60, 0x00, 0xC0, 0x00, 0x00, 0x00,
300	0x0C, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0x00, 0x00,
301	0x00, 0x00, 0x00, 0xC0, 0x0C, 0x87, 0x31, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00,
302	0x00, 0x06, 0x00, 0x00, 0x18, 0x00, 0x30, 0x00, 0x00, 0x00, 0x03, 0x00, 0x30,
303	0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0xE0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
304	0xF8, 0x83, 0xC1, 0x07, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x01, 0x00,
305	0x00, 0x04, 0x00, 0x0E, 0x00, 0x00, 0x80, 0x00, 0x00, 0x0E, 0x00, 0x00, 0x30,
306	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
307	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
308	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
309	};
310	#endif /* IN_RING3 */
311
312
313	#ifndef VBOX_DEVICE_STRUCT_TESTCASE
314
315
316	/**
317	* Set a VRAM page dirty.
318	*
319	* @param pThis VGA instance data.
320	* @param offVRAM The VRAM offset of the page to set.
321	*/
322	DECLINLINE(void) vga_set_dirty(PVGASTATE pThis, RTGCPHYS offVRAM)
323	{
324	AssertMsg(offVRAM < pThis->vram_size, ("offVRAM = %p, pThis->vram_size = %p\n", offVRAM, pThis->vram_size));
325	ASMBitSet(&pThis->au32DirtyBitmap[0], offVRAM >> PAGE_SHIFT);
326	pThis->fHasDirtyBits = true;
327	}
328
329	/**
330	* Tests if a VRAM page is dirty.
331	*
332	* @returns true if dirty.
333	* @returns false if clean.
334	* @param pThis VGA instance data.
335	* @param offVRAM The VRAM offset of the page to check.
336	*/
337	DECLINLINE(bool) vga_is_dirty(PVGASTATE pThis, RTGCPHYS offVRAM)
338	{
339	AssertMsg(offVRAM < pThis->vram_size, ("offVRAM = %p, pThis->vram_size = %p\n", offVRAM, pThis->vram_size));
340	return ASMBitTest(&pThis->au32DirtyBitmap[0], offVRAM >> PAGE_SHIFT);
341	}
342
343	#ifdef IN_RING3
344	/**
345	* Reset dirty flags in a give range.
346	*
347	* @param pThis VGA instance data.
348	* @param offVRAMStart Offset into the VRAM buffer of the first page.
349	* @param offVRAMEnd Offset into the VRAM buffer of the last page - exclusive.
350	*/
351	DECLINLINE(void) vga_reset_dirty(PVGASTATE pThis, RTGCPHYS offVRAMStart, RTGCPHYS offVRAMEnd)
352	{
353	Assert(offVRAMStart < pThis->vram_size);
354	Assert(offVRAMEnd <= pThis->vram_size);
355	Assert(offVRAMStart < offVRAMEnd);
356	ASMBitClearRange(&pThis->au32DirtyBitmap[0], offVRAMStart >> PAGE_SHIFT, offVRAMEnd >> PAGE_SHIFT);
357	}
358	#endif /* IN_RING3 */
359
360	#ifdef _MSC_VER
361	# pragma warning(push)
362	# pragma warning(disable:4310 4245) /* Buggy warnings: cast truncates constant value; conversion from 'int' to 'const uint8_t', signed/unsigned mismatch */
363	#endif
364
365	/* force some bits to zero */
366	static const uint8_t sr_mask[8] = {
367	(uint8_t)~0xfc,
368	(uint8_t)~0xc2,
369	(uint8_t)~0xf0,
370	(uint8_t)~0xc0,
371	(uint8_t)~0xf1,
372	(uint8_t)~0xff,
373	(uint8_t)~0xff,
374	(uint8_t)~0x01,
375	};
376
377	static const uint8_t gr_mask[16] = {
378	(uint8_t)~0xf0, /* 0x00 */
379	(uint8_t)~0xf0, /* 0x01 */
380	(uint8_t)~0xf0, /* 0x02 */
381	(uint8_t)~0xe0, /* 0x03 */
382	(uint8_t)~0xfc, /* 0x04 */
383	(uint8_t)~0x84, /* 0x05 */
384	(uint8_t)~0xf0, /* 0x06 */
385	(uint8_t)~0xf0, /* 0x07 */
386	(uint8_t)~0x00, /* 0x08 */
387	(uint8_t)~0xff, /* 0x09 */
388	(uint8_t)~0xff, /* 0x0a */
389	(uint8_t)~0xff, /* 0x0b */
390	(uint8_t)~0xff, /* 0x0c */
391	(uint8_t)~0xff, /* 0x0d */
392	(uint8_t)~0xff, /* 0x0e */
393	(uint8_t)~0xff, /* 0x0f */
394	};
395
396	#ifdef _MSC_VER
397	# pragma warning(pop)
398	#endif
399
400	#define cbswap_32(__x) \
401	((uint32_t)( \
402	(((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) \| \
403	(((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) \| \
404	(((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) \| \
405	(((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) ))
406
407	#ifdef WORDS_BIGENDIAN
408	#define PAT(x) cbswap_32(x)
409	#else
410	#define PAT(x) (x)
411	#endif
412
413	#ifdef WORDS_BIGENDIAN
414	#define BIG 1
415	#else
416	#define BIG 0
417	#endif
418
419	#ifdef WORDS_BIGENDIAN
420	#define GET_PLANE(data, p) (((data) >> (24 - (p) * 8)) & 0xff)
421	#else
422	#define GET_PLANE(data, p) (((data) >> ((p) * 8)) & 0xff)
423	#endif
424
425	static const uint32_t mask16[16] = {
426	PAT(0x00000000),
427	PAT(0x000000ff),
428	PAT(0x0000ff00),
429	PAT(0x0000ffff),
430	PAT(0x00ff0000),
431	PAT(0x00ff00ff),
432	PAT(0x00ffff00),
433	PAT(0x00ffffff),
434	PAT(0xff000000),
435	PAT(0xff0000ff),
436	PAT(0xff00ff00),
437	PAT(0xff00ffff),
438	PAT(0xffff0000),
439	PAT(0xffff00ff),
440	PAT(0xffffff00),
441	PAT(0xffffffff),
442	};
443
444	#undef PAT
445
446	#ifdef WORDS_BIGENDIAN
447	#define PAT(x) (x)
448	#else
449	#define PAT(x) cbswap_32(x)
450	#endif
451
452	#ifdef IN_RING3
453
454	static const uint32_t dmask16[16] = {
455	PAT(0x00000000),
456	PAT(0x000000ff),
457	PAT(0x0000ff00),
458	PAT(0x0000ffff),
459	PAT(0x00ff0000),
460	PAT(0x00ff00ff),
461	PAT(0x00ffff00),
462	PAT(0x00ffffff),
463	PAT(0xff000000),
464	PAT(0xff0000ff),
465	PAT(0xff00ff00),
466	PAT(0xff00ffff),
467	PAT(0xffff0000),
468	PAT(0xffff00ff),
469	PAT(0xffffff00),
470	PAT(0xffffffff),
471	};
472
473	static const uint32_t dmask4[4] = {
474	PAT(0x00000000),
475	PAT(0x0000ffff),
476	PAT(0xffff0000),
477	PAT(0xffffffff),
478	};
479
480	static uint32_t expand4[256];
481	static uint16_t expand2[256];
482	static uint8_t expand4to8[16];
483
484	#endif /* IN_RING3 */
485
486	/* Update the values needed for calculating Vertical Retrace and
487	* Display Enable status bits more or less accurately. The Display Enable
488	* bit is set (indicating disabled display signal) when either the
489	* horizontal (hblank) or vertical (vblank) blanking is active. The
490	* Vertical Retrace bit is set when vertical retrace (vsync) is active.
491	* Unless the CRTC is horribly misprogrammed, vsync implies vblank.
492	*/
493	static void vga_update_retrace_state(PVGASTATE pThis)
494	{
495	unsigned htotal_cclks, vtotal_lines, chars_per_sec;
496	unsigned hblank_start_cclk, hblank_end_cclk, hblank_width, hblank_skew_cclks;
497	unsigned vsync_start_line, vsync_end, vsync_width;
498	unsigned vblank_start_line, vblank_end, vblank_width;
499	unsigned char_dots, clock_doubled, clock_index;
500	const int clocks[] = {25175000, 28322000, 25175000, 25175000};
501	vga_retrace_s *r = &pThis->retrace_state;
502
503	/* For horizontal timings, we only care about the blanking start/end. */
504	htotal_cclks = pThis->cr[0x00] + 5;
505	hblank_start_cclk = pThis->cr[0x02];
506	hblank_end_cclk = (pThis->cr[0x03] & 0x1f) + ((pThis->cr[0x05] & 0x80) >> 2);
507	hblank_skew_cclks = (pThis->cr[0x03] >> 5) & 3;
508
509	/* For vertical timings, we need both the blanking start/end... */
510	vtotal_lines = pThis->cr[0x06] + ((pThis->cr[0x07] & 1) << 8) + ((pThis->cr[0x07] & 0x20) << 4) + 2;
511	vblank_start_line = pThis->cr[0x15] + ((pThis->cr[0x07] & 8) << 5) + ((pThis->cr[0x09] & 0x20) << 4);
512	vblank_end = pThis->cr[0x16];
513	/* ... and the vertical retrace (vsync) start/end. */
514	vsync_start_line = pThis->cr[0x10] + ((pThis->cr[0x07] & 4) << 6) + ((pThis->cr[0x07] & 0x80) << 2);
515	vsync_end = pThis->cr[0x11] & 0xf;
516
517	/* Calculate the blanking and sync widths. The way it's implemented in
518	* the VGA with limited-width compare counters is quite a piece of work.
519	*/
520	hblank_width = (hblank_end_cclk - hblank_start_cclk) & 0x3f;/* 6 bits */
521	vblank_width = (vblank_end - vblank_start_line) & 0xff; /* 8 bits */
522	vsync_width = (vsync_end - vsync_start_line) & 0xf; /* 4 bits */
523
524	/* Calculate the dot and character clock rates. */
525	clock_doubled = (pThis->sr[0x01] >> 3) & 1; /* Clock doubling bit. */
526	clock_index = (pThis->msr >> 2) & 3;
527	char_dots = (pThis->sr[0x01] & 1) ? 8 : 9; /* 8 or 9 dots per cclk. */
528
529	chars_per_sec = clocks[clock_index] / char_dots;
530	Assert(chars_per_sec); /* Can't possibly be zero. */
531
532	htotal_cclks <<= clock_doubled;
533
534	/* Calculate the number of cclks per entire frame. */
535	r->frame_cclks = vtotal_lines * htotal_cclks;
536	Assert(r->frame_cclks); /* Can't possibly be zero. */
537
538	if (r->v_freq_hz) { /* Could be set to emulate a specific rate. */
539	r->cclk_ns = 1000000000 / (r->frame_cclks * r->v_freq_hz);
540	} else {
541	r->cclk_ns = 1000000000 / chars_per_sec;
542	}
543	Assert(r->cclk_ns);
544	r->frame_ns = r->frame_cclks * r->cclk_ns;
545
546	/* Calculate timings in cclks/lines. Stored but not directly used. */
547	r->hb_start = hblank_start_cclk + hblank_skew_cclks;
548	r->hb_end = hblank_start_cclk + hblank_width + hblank_skew_cclks;
549	r->h_total = htotal_cclks;
550	Assert(r->h_total); /* Can't possibly be zero. */
551
552	r->vb_start = vblank_start_line;
553	r->vb_end = vblank_start_line + vblank_width + 1;
554	r->vs_start = vsync_start_line;
555	r->vs_end = vsync_start_line + vsync_width + 1;
556
557	/* Calculate timings in nanoseconds. For easier comparisons, the frame
558	* is considered to start at the beginning of the vertical and horizontal
559	* blanking period.
560	*/
561	r->h_total_ns = htotal_cclks * r->cclk_ns;
562	r->hb_end_ns = hblank_width * r->cclk_ns;
563	r->vb_end_ns = vblank_width * r->h_total_ns;
564	r->vs_start_ns = (r->vs_start - r->vb_start) * r->h_total_ns;
565	r->vs_end_ns = (r->vs_end - r->vb_start) * r->h_total_ns;
566	Assert(r->h_total_ns); /* See h_total. */
567	}
568
569	static uint8_t vga_retrace(PVGASTATE pThis)
570	{
571	vga_retrace_s *r = &pThis->retrace_state;
572
573	if (r->frame_ns) {
574	uint8_t val = pThis->st01 & ~(ST01_V_RETRACE \| ST01_DISP_ENABLE);
575	unsigned cur_frame_ns, cur_line_ns;
576	uint64_t time_ns;
577
578	time_ns = PDMDevHlpTMTimeVirtGetNano(VGASTATE2DEVINS(pThis));
579
580	/* Determine the time within the frame. */
581	cur_frame_ns = time_ns % r->frame_ns;
582
583	/* See if we're in the vertical blanking period... */
584	if (cur_frame_ns < r->vb_end_ns) {
585	val \|= ST01_DISP_ENABLE;
586	/* ... and additionally in the vertical sync period. */
587	if (cur_frame_ns >= r->vs_start_ns && cur_frame_ns <= r->vs_end_ns)
588	val \|= ST01_V_RETRACE;
589	} else {
590	/* Determine the time within the current scanline. */
591	cur_line_ns = cur_frame_ns % r->h_total_ns;
592	/* See if we're in the horizontal blanking period. */
593	if (cur_line_ns < r->hb_end_ns)
594	val \|= ST01_DISP_ENABLE;
595	}
596	return val;
597	} else {
598	return pThis->st01 ^ (ST01_V_RETRACE \| ST01_DISP_ENABLE);
599	}
600	}
601
602	int vga_ioport_invalid(PVGASTATE pThis, uint32_t addr)
603	{
604	if (pThis->msr & MSR_COLOR_EMULATION) {
605	/* Color */
606	return (addr >= 0x3b0 && addr <= 0x3bf);
607	} else {
608	/* Monochrome */
609	return (addr >= 0x3d0 && addr <= 0x3df);
610	}
611	}
612
613	static uint32_t vga_ioport_read(PVGASTATE pThis, uint32_t addr)
614	{
615	int val, index;
616
617	/* check port range access depending on color/monochrome mode */
618	if (vga_ioport_invalid(pThis, addr)) {
619	val = 0xff;
620	Log(("VGA: following read ignored\n"));
621	} else {
622	switch(addr) {
623	case 0x3c0:
624	if (pThis->ar_flip_flop == 0) {
625	val = pThis->ar_index;
626	} else {
627	val = 0;
628	}
629	break;
630	case 0x3c1:
631	index = pThis->ar_index & 0x1f;
632	if (index < 21)
633	val = pThis->ar[index];
634	else
635	val = 0;
636	break;
637	case 0x3c2:
638	val = pThis->st00;
639	break;
640	case 0x3c4:
641	val = pThis->sr_index;
642	break;
643	case 0x3c5:
644	val = pThis->sr[pThis->sr_index];
645	Log2(("vga: read SR%x = 0x%02x\n", pThis->sr_index, val));
646	break;
647	case 0x3c7:
648	val = pThis->dac_state;
649	break;
650	case 0x3c8:
651	val = pThis->dac_write_index;
652	break;
653	case 0x3c9:
654	Assert(pThis->dac_sub_index < 3);
655	val = pThis->palette[pThis->dac_read_index * 3 + pThis->dac_sub_index];
656	if (++pThis->dac_sub_index == 3) {
657	pThis->dac_sub_index = 0;
658	pThis->dac_read_index++;
659	}
660	break;
661	case 0x3ca:
662	val = pThis->fcr;
663	break;
664	case 0x3cc:
665	val = pThis->msr;
666	break;
667	case 0x3ce:
668	val = pThis->gr_index;
669	break;
670	case 0x3cf:
671	val = pThis->gr[pThis->gr_index];
672	Log2(("vga: read GR%x = 0x%02x\n", pThis->gr_index, val));
673	break;
674	case 0x3b4:
675	case 0x3d4:
676	val = pThis->cr_index;
677	break;
678	case 0x3b5:
679	case 0x3d5:
680	val = pThis->cr[pThis->cr_index];
681	Log2(("vga: read CR%x = 0x%02x\n", pThis->cr_index, val));
682	break;
683	case 0x3ba:
684	case 0x3da:
685	val = pThis->st01 = vga_retrace(pThis);
686	pThis->ar_flip_flop = 0;
687	break;
688	default:
689	val = 0x00;
690	break;
691	}
692	}
693	Log(("VGA: read addr=0x%04x data=0x%02x\n", addr, val));
694	return val;
695	}
696
697	static void vga_ioport_write(PVGASTATE pThis, uint32_t addr, uint32_t val)
698	{
699	int index;
700
701	Log(("VGA: write addr=0x%04x data=0x%02x\n", addr, val));
702
703	/* check port range access depending on color/monochrome mode */
704	if (vga_ioport_invalid(pThis, addr)) {
705	Log(("VGA: previous write ignored\n"));
706	return;
707	}
708
709	switch(addr) {
710	case 0x3c0:
711	case 0x3c1:
712	if (pThis->ar_flip_flop == 0) {
713	val &= 0x3f;
714	pThis->ar_index = val;
715	} else {
716	index = pThis->ar_index & 0x1f;
717	switch(index) {
718	case 0x00: case 0x01: case 0x02: case 0x03: case 0x04: case 0x05: case 0x06: case 0x07:
719	case 0x08: case 0x09: case 0x0a: case 0x0b: case 0x0c: case 0x0d: case 0x0e: case 0x0f:
720	pThis->ar[index] = val & 0x3f;
721	break;
722	case 0x10:
723	pThis->ar[index] = val & ~0x10;
724	break;
725	case 0x11:
726	pThis->ar[index] = val;
727	break;
728	case 0x12:
729	pThis->ar[index] = val & ~0xc0;
730	break;
731	case 0x13:
732	pThis->ar[index] = val & ~0xf0;
733	break;
734	case 0x14:
735	pThis->ar[index] = val & ~0xf0;
736	break;
737	default:
738	break;
739	}
740	}
741	pThis->ar_flip_flop ^= 1;
742	break;
743	case 0x3c2:
744	pThis->msr = val & ~0x10;
745	if (pThis->fRealRetrace)
746	vga_update_retrace_state(pThis);
747	pThis->st00 = (pThis->st00 & ~0x10) \| (0x90 >> ((val >> 2) & 0x3));
748	break;
749	case 0x3c4:
750	pThis->sr_index = val & 7;
751	break;
752	case 0x3c5:
753	Log2(("vga: write SR%x = 0x%02x\n", pThis->sr_index, val));
754	pThis->sr[pThis->sr_index] = val & sr_mask[pThis->sr_index];
755	/* Allow SR07 to disable VBE. */
756	if (pThis->sr_index == 0x07 && !(val & 1))
757	{
758	pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] = VBE_DISPI_DISABLED;
759	pThis->bank_offset = 0;
760	}
761	if (pThis->fRealRetrace && pThis->sr_index == 0x01)
762	vga_update_retrace_state(pThis);
763	#ifndef IN_RC
764	/* The VGA region is (could be) affected by this change; reset all aliases we've created. */
765	if ( pThis->sr_index == 4 /* mode */
766	\|\| pThis->sr_index == 2 /* plane mask */)
767	{
768	if (pThis->fRemappedVGA)
769	{
770	IOMMMIOResetRegion(PDMDevHlpGetVM(pThis->CTX_SUFF(pDevIns)), 0x000a0000);
771	pThis->fRemappedVGA = false;
772	}
773	}
774	#endif
775	break;
776	case 0x3c7:
777	pThis->dac_read_index = val;
778	pThis->dac_sub_index = 0;
779	pThis->dac_state = 3;
780	break;
781	case 0x3c8:
782	pThis->dac_write_index = val;
783	pThis->dac_sub_index = 0;
784	pThis->dac_state = 0;
785	break;
786	case 0x3c9:
787	Assert(pThis->dac_sub_index < 3);
788	pThis->dac_cache[pThis->dac_sub_index] = val;
789	if (++pThis->dac_sub_index == 3) {
790	memcpy(&pThis->palette[pThis->dac_write_index * 3], pThis->dac_cache, 3);
791	pThis->dac_sub_index = 0;
792	pThis->dac_write_index++;
793	}
794	break;
795	case 0x3ce:
796	pThis->gr_index = val & 0x0f;
797	break;
798	case 0x3cf:
799	Log2(("vga: write GR%x = 0x%02x\n", pThis->gr_index, val));
800	Assert(pThis->gr_index < RT_ELEMENTS(gr_mask));
801	pThis->gr[pThis->gr_index] = val & gr_mask[pThis->gr_index];
802
803	#ifndef IN_RC
804	/* The VGA region is (could be) affected by this change; reset all aliases we've created. */
805	if (pThis->gr_index == 6 /* memory map mode */)
806	{
807	if (pThis->fRemappedVGA)
808	{
809	IOMMMIOResetRegion(PDMDevHlpGetVM(pThis->CTX_SUFF(pDevIns)), 0x000a0000);
810	pThis->fRemappedVGA = false;
811	}
812	}
813	#endif
814	break;
815
816	case 0x3b4:
817	case 0x3d4:
818	pThis->cr_index = val;
819	break;
820	case 0x3b5:
821	case 0x3d5:
822	Log2(("vga: write CR%x = 0x%02x\n", pThis->cr_index, val));
823	/* handle CR0-7 protection */
824	if ((pThis->cr[0x11] & 0x80) && pThis->cr_index <= 7) {
825	/* can always write bit 4 of CR7 */
826	if (pThis->cr_index == 7)
827	pThis->cr[7] = (pThis->cr[7] & ~0x10) \| (val & 0x10);
828	return;
829	}
830	pThis->cr[pThis->cr_index] = val;
831
832	if (pThis->fRealRetrace) {
833	/* The following registers are only updated during a mode set. */
834	switch(pThis->cr_index) {
835	case 0x00:
836	case 0x02:
837	case 0x03:
838	case 0x05:
839	case 0x06:
840	case 0x07:
841	case 0x09:
842	case 0x10:
843	case 0x11:
844	case 0x15:
845	case 0x16:
846	vga_update_retrace_state(pThis);
847	break;
848	}
849	}
850	break;
851	case 0x3ba:
852	case 0x3da:
853	pThis->fcr = val & 0x10;
854	break;
855	}
856	}
857
858	#ifdef CONFIG_BOCHS_VBE
859
860	static uint32_t vbe_read_cfg(PVGASTATE pThis)
861	{
862	const uint16_t u16Cfg = pThis->vbe_regs[VBE_DISPI_INDEX_CFG];
863	const uint16_t u16Id = u16Cfg & VBE_DISPI_CFG_MASK_ID;
864	const bool fQuerySupport = RT_BOOL(u16Cfg & VBE_DISPI_CFG_MASK_SUPPORT);
865
866	uint32_t val = 0;
867	switch (u16Id)
868	{
869	case VBE_DISPI_CFG_ID_VERSION: val = 1; break;
870	case VBE_DISPI_CFG_ID_VRAM_SIZE: val = pThis->vram_size; break;
871	case VBE_DISPI_CFG_ID_3D: val = pThis->f3DEnabled; break;
872	case VBE_DISPI_CFG_ID_VMSVGA: val = pThis->fVMSVGAEnabled; break;
873	default:
874	return 0; /* Not supported. */
875	}
876
877	return fQuerySupport ? 1 : val;
878	}
879
880	static uint32_t vbe_ioport_read_index(PVGASTATE pThis, uint32_t addr)
881	{
882	uint32_t val = pThis->vbe_index;
883	NOREF(addr);
884	return val;
885	}
886
887	static uint32_t vbe_ioport_read_data(PVGASTATE pThis, uint32_t addr)
888	{
889	uint32_t val;
890	NOREF(addr);
891
892	uint16_t const idxVbe = pThis->vbe_index;
893	if (idxVbe < VBE_DISPI_INDEX_NB)
894	{
895	RT_UNTRUSTED_VALIDATED_FENCE();
896	if (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_GETCAPS)
897	{
898	switch (idxVbe)
899	{
900	/* XXX: do not hardcode ? */
901	case VBE_DISPI_INDEX_XRES:
902	val = VBE_DISPI_MAX_XRES;
903	break;
904	case VBE_DISPI_INDEX_YRES:
905	val = VBE_DISPI_MAX_YRES;
906	break;
907	case VBE_DISPI_INDEX_BPP:
908	val = VBE_DISPI_MAX_BPP;
909	break;
910	default:
911	Assert(idxVbe < VBE_DISPI_INDEX_NB);
912	val = pThis->vbe_regs[idxVbe];
913	break;
914	}
915	}
916	else
917	{
918	switch (idxVbe)
919	{
920	case VBE_DISPI_INDEX_VBOX_VIDEO:
921	/* Reading from the port means that the old additions are requesting the number of monitors. */
922	val = 1;
923	break;
924	case VBE_DISPI_INDEX_CFG:
925	val = vbe_read_cfg(pThis);
926	break;
927	default:
928	Assert(idxVbe < VBE_DISPI_INDEX_NB);
929	val = pThis->vbe_regs[idxVbe];
930	break;
931	}
932	}
933	}
934	else
935	val = 0;
936	Log(("VBE: read index=0x%x val=0x%x\n", idxVbe, val));
937	return val;
938	}
939
940	#define VBE_PITCH_ALIGN 4 /* Align pitch to 32 bits - Qt requires that. */
941
942	/* Calculate scanline pitch based on bit depth and width in pixels. */
943	static uint32_t calc_line_pitch(uint16_t bpp, uint16_t width)
944	{
945	uint32_t pitch, aligned_pitch;
946
947	if (bpp <= 4)
948	pitch = width >> 1;
949	else
950	pitch = width * ((bpp + 7) >> 3);
951
952	/* Align the pitch to some sensible value. */
953	aligned_pitch = (pitch + (VBE_PITCH_ALIGN - 1)) & ~(VBE_PITCH_ALIGN - 1);
954	if (aligned_pitch != pitch)
955	Log(("VBE: Line pitch %d aligned to %d bytes\n", pitch, aligned_pitch));
956
957	return aligned_pitch;
958	}
959
960	#ifdef SOME_UNUSED_FUNCTION
961	/* Calculate line width in pixels based on bit depth and pitch. */
962	static uint32_t calc_line_width(uint16_t bpp, uint32_t pitch)
963	{
964	uint32_t width;
965
966	if (bpp <= 4)
967	width = pitch << 1;
968	else
969	width = pitch / ((bpp + 7) >> 3);
970
971	return width;
972	}
973	#endif
974
975	static void recalculate_data(PVGASTATE pThis)
976	{
977	uint16_t cBPP = pThis->vbe_regs[VBE_DISPI_INDEX_BPP];
978	uint16_t cVirtWidth = pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH];
979	uint16_t cX = pThis->vbe_regs[VBE_DISPI_INDEX_XRES];
980	if (!cBPP \|\| !cX)
981	return; /* Not enough data has been set yet. */
982	uint32_t cbLinePitch = calc_line_pitch(cBPP, cVirtWidth);
983	if (!cbLinePitch)
984	cbLinePitch = calc_line_pitch(cBPP, cX);
985	Assert(cbLinePitch != 0);
986	uint32_t cVirtHeight = pThis->vram_size / cbLinePitch;
987	uint16_t offX = pThis->vbe_regs[VBE_DISPI_INDEX_X_OFFSET];
988	uint16_t offY = pThis->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET];
989	uint32_t offStart = cbLinePitch * offY;
990	if (cBPP == 4)
991	offStart += offX >> 1;
992	else
993	offStart += offX * ((cBPP + 7) >> 3);
994	offStart >>= 2;
995	pThis->vbe_line_offset = RT_MIN(cbLinePitch, pThis->vram_size);
996	pThis->vbe_start_addr = RT_MIN(offStart, pThis->vram_size);
997
998	/* The VBE_DISPI_INDEX_VIRT_HEIGHT is used to prevent setting resolution bigger than
999	* the VRAM size permits. It is used instead of VBE_DISPI_INDEX_YRES only in case
1000	* pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] < pThis->vbe_regs[VBE_DISPI_INDEX_YRES].
1001	* Note that VBE_DISPI_INDEX_VIRT_HEIGHT has to be clipped to UINT16_MAX, which happens
1002	* with small resolutions and big VRAM. */
1003	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = cVirtHeight >= UINT16_MAX ? UINT16_MAX : (uint16_t)cVirtHeight;
1004	}
1005
1006	static void vbe_ioport_write_index(PVGASTATE pThis, uint32_t addr, uint32_t val)
1007	{
1008	pThis->vbe_index = val;
1009	NOREF(addr);
1010	}
1011
1012	static int vbe_ioport_write_data(PVGASTATE pThis, uint32_t addr, uint32_t val)
1013	{
1014	uint32_t max_bank;
1015	NOREF(addr);
1016
1017	if (pThis->vbe_index <= VBE_DISPI_INDEX_NB) {
1018	bool fRecalculate = false;
1019	Log(("VBE: write index=0x%x val=0x%x\n", pThis->vbe_index, val));
1020	switch(pThis->vbe_index) {
1021	case VBE_DISPI_INDEX_ID:
1022	if (val == VBE_DISPI_ID0 \|\|
1023	val == VBE_DISPI_ID1 \|\|
1024	val == VBE_DISPI_ID2 \|\|
1025	val == VBE_DISPI_ID3 \|\|
1026	val == VBE_DISPI_ID4 \|\|
1027	/* VBox extensions. */
1028	val == VBE_DISPI_ID_VBOX_VIDEO \|\|
1029	val == VBE_DISPI_ID_ANYX \|\|
1030	#ifdef VBOX_WITH_HGSMI
1031	val == VBE_DISPI_ID_HGSMI \|\|
1032	#endif
1033	val == VBE_DISPI_ID_CFG)
1034	{
1035	pThis->vbe_regs[pThis->vbe_index] = val;
1036	}
1037	break;
1038	case VBE_DISPI_INDEX_XRES:
1039	if (val <= VBE_DISPI_MAX_XRES)
1040	{
1041	pThis->vbe_regs[pThis->vbe_index] = val;
1042	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = val;
1043	fRecalculate = true;
1044	}
1045	break;
1046	case VBE_DISPI_INDEX_YRES:
1047	if (val <= VBE_DISPI_MAX_YRES)
1048	pThis->vbe_regs[pThis->vbe_index] = val;
1049	break;
1050	case VBE_DISPI_INDEX_BPP:
1051	if (val == 0)
1052	val = 8;
1053	if (val == 4 \|\| val == 8 \|\| val == 15 \|\|
1054	val == 16 \|\| val == 24 \|\| val == 32) {
1055	pThis->vbe_regs[pThis->vbe_index] = val;
1056	fRecalculate = true;
1057	}
1058	break;
1059	case VBE_DISPI_INDEX_BANK:
1060	if (pThis->vbe_regs[VBE_DISPI_INDEX_BPP] <= 4)
1061	max_bank = pThis->vbe_bank_max >> 2; /* Each bank really covers 256K */
1062	else
1063	max_bank = pThis->vbe_bank_max;
1064	/* Old software may pass garbage in the high byte of bank. If the maximum
1065	* bank fits into a single byte, toss the high byte the user supplied.
1066	*/
1067	if (max_bank < 0x100)
1068	val &= 0xff;
1069	if (val > max_bank)
1070	val = max_bank;
1071	pThis->vbe_regs[pThis->vbe_index] = val;
1072	pThis->bank_offset = (val << 16);
1073
1074	#ifndef IN_RC
1075	/* The VGA region is (could be) affected by this change; reset all aliases we've created. */
1076	if (pThis->fRemappedVGA)
1077	{
1078	IOMMMIOResetRegion(PDMDevHlpGetVM(pThis->CTX_SUFF(pDevIns)), 0x000a0000);
1079	pThis->fRemappedVGA = false;
1080	}
1081	#endif
1082	break;
1083
1084	case VBE_DISPI_INDEX_ENABLE:
1085	#ifndef IN_RING3
1086	return VINF_IOM_R3_IOPORT_WRITE;
1087	#else
1088	{
1089	if ((val & VBE_DISPI_ENABLED) &&
1090	!(pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED)) {
1091	int h, shift_control;
1092	/* Check the values before we screw up with a resolution which is too big or small. */
1093	size_t cb = pThis->vbe_regs[VBE_DISPI_INDEX_XRES];
1094	if (pThis->vbe_regs[VBE_DISPI_INDEX_BPP] == 4)
1095	cb = pThis->vbe_regs[VBE_DISPI_INDEX_XRES] >> 1;
1096	else
1097	cb = pThis->vbe_regs[VBE_DISPI_INDEX_XRES] * ((pThis->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3);
1098	cb *= pThis->vbe_regs[VBE_DISPI_INDEX_YRES];
1099	uint16_t cVirtWidth = pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH];
1100	if (!cVirtWidth)
1101	cVirtWidth = pThis->vbe_regs[VBE_DISPI_INDEX_XRES];
1102	if ( !cVirtWidth
1103	\|\| !pThis->vbe_regs[VBE_DISPI_INDEX_YRES]
1104	\|\| cb > pThis->vram_size)
1105	{
1106	AssertMsgFailed(("VIRT WIDTH=%d YRES=%d cb=%d vram_size=%d\n",
1107	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH], pThis->vbe_regs[VBE_DISPI_INDEX_YRES], cb, pThis->vram_size));
1108	return VINF_SUCCESS; /* Note: silent failure like before */
1109	}
1110
1111	/* When VBE interface is enabled, it is reset. */
1112	pThis->vbe_regs[VBE_DISPI_INDEX_X_OFFSET] = 0;
1113	pThis->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET] = 0;
1114	fRecalculate = true;
1115
1116	/* clear the screen (should be done in BIOS) */
1117	if (!(val & VBE_DISPI_NOCLEARMEM)) {
1118	uint16_t cY = RT_MIN(pThis->vbe_regs[VBE_DISPI_INDEX_YRES],
1119	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT]);
1120	uint16_t cbLinePitch = pThis->vbe_line_offset;
1121	memset(pThis->CTX_SUFF(vram_ptr), 0,
1122	cY * cbLinePitch);
1123	}
1124
1125	/* we initialize the VGA graphic mode (should be done
1126	in BIOS) */
1127	pThis->gr[0x06] = (pThis->gr[0x06] & ~0x0c) \| 0x05; /* graphic mode + memory map 1 */
1128	pThis->cr[0x17] \|= 3; /* no CGA modes */
1129	pThis->cr[0x13] = pThis->vbe_line_offset >> 3;
1130	/* width */
1131	pThis->cr[0x01] = (cVirtWidth >> 3) - 1;
1132	/* height (only meaningful if < 1024) */
1133	h = pThis->vbe_regs[VBE_DISPI_INDEX_YRES] - 1;
1134	pThis->cr[0x12] = h;
1135	pThis->cr[0x07] = (pThis->cr[0x07] & ~0x42) \|
1136	((h >> 7) & 0x02) \| ((h >> 3) & 0x40);
1137	/* line compare to 1023 */
1138	pThis->cr[0x18] = 0xff;
1139	pThis->cr[0x07] \|= 0x10;
1140	pThis->cr[0x09] \|= 0x40;
1141
1142	if (pThis->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) {
1143	shift_control = 0;
1144	pThis->sr[0x01] &= ~8; /* no double line */
1145	} else {
1146	shift_control = 2;
1147	pThis->sr[4] \|= 0x08; /* set chain 4 mode */
1148	pThis->sr[2] \|= 0x0f; /* activate all planes */
1149	/* Indicate non-VGA mode in SR07. */
1150	pThis->sr[7] \|= 1;
1151	}
1152	pThis->gr[0x05] = (pThis->gr[0x05] & ~0x60) \| (shift_control << 5);
1153	pThis->cr[0x09] &= ~0x9f; /* no double scan */
1154	/* sunlover 30.05.2007
1155	* The ar_index remains with bit 0x20 cleared after a switch from fullscreen
1156	* DOS mode on Windows XP guest. That leads to GMODE_BLANK in vga_update_display.
1157	* But the VBE mode is graphics, so not a blank anymore.
1158	*/
1159	pThis->ar_index \|= 0x20;
1160	} else {
1161	/* XXX: the bios should do that */
1162	/* sunlover 21.12.2006
1163	* Here is probably more to reset. When this was executed in GC
1164	* then the update functions could not detect a mode change.
1165	* Or may be these update function should take the pThis->vbe_regs[pThis->vbe_index]
1166	* into account when detecting a mode change.
1167	*
1168	* The 'mode reset not detected' problem is now fixed by executing the
1169	* VBE_DISPI_INDEX_ENABLE case always in RING3 in order to call the
1170	* LFBChange callback.
1171	*/
1172	pThis->bank_offset = 0;
1173	}
1174	pThis->vbe_regs[pThis->vbe_index] = val;
1175	/*
1176	* LFB video mode is either disabled or changed. Notify the display
1177	* and reset VBVA.
1178	*/
1179	pThis->pDrv->pfnLFBModeChange(pThis->pDrv, (val & VBE_DISPI_ENABLED) != 0);
1180	#ifdef VBOX_WITH_HGSMI
1181	VBVAOnVBEChanged(pThis);
1182	#endif /* VBOX_WITH_HGSMI */
1183
1184	/* The VGA region is (could be) affected by this change; reset all aliases we've created. */
1185	if (pThis->fRemappedVGA)
1186	{
1187	IOMMMIOResetRegion(PDMDevHlpGetVM(pThis->CTX_SUFF(pDevIns)), 0x000a0000);
1188	pThis->fRemappedVGA = false;
1189	}
1190	break;
1191	}
1192	#endif /* IN_RING3 */
1193	case VBE_DISPI_INDEX_VIRT_WIDTH:
1194	case VBE_DISPI_INDEX_X_OFFSET:
1195	case VBE_DISPI_INDEX_Y_OFFSET:
1196	{
1197	pThis->vbe_regs[pThis->vbe_index] = val;
1198	fRecalculate = true;
1199	}
1200	break;
1201	case VBE_DISPI_INDEX_VBOX_VIDEO:
1202	#ifndef IN_RING3
1203	return VINF_IOM_R3_IOPORT_WRITE;
1204	#else
1205	/* Changes in the VGA device are minimal. The device is bypassed. The driver does all work. */
1206	if (val == VBOX_VIDEO_DISABLE_ADAPTER_MEMORY)
1207	{
1208	pThis->pDrv->pfnProcessAdapterData(pThis->pDrv, NULL, 0);
1209	}
1210	else if (val == VBOX_VIDEO_INTERPRET_ADAPTER_MEMORY)
1211	{
1212	pThis->pDrv->pfnProcessAdapterData(pThis->pDrv, pThis->CTX_SUFF(vram_ptr), pThis->vram_size);
1213	}
1214	else if ((val & 0xFFFF0000) == VBOX_VIDEO_INTERPRET_DISPLAY_MEMORY_BASE)
1215	{
1216	pThis->pDrv->pfnProcessDisplayData(pThis->pDrv, pThis->CTX_SUFF(vram_ptr), val & 0xFFFF);
1217	}
1218	#endif /* IN_RING3 */
1219	break;
1220	case VBE_DISPI_INDEX_CFG:
1221	pThis->vbe_regs[pThis->vbe_index] = val;
1222	break;
1223	default:
1224	break;
1225	}
1226	if (fRecalculate)
1227	{
1228	recalculate_data(pThis);
1229	}
1230	}
1231	return VINF_SUCCESS;
1232	}
1233	#endif
1234
1235	/* called for accesses between 0xa0000 and 0xc0000 */
1236	static uint32_t vga_mem_readb(PVGASTATE pThis, RTGCPHYS addr, int *prc)
1237	{
1238	int memory_map_mode, plane;
1239	uint32_t ret;
1240
1241	Log3(("vga: read [0x%x] -> ", addr));
1242	/* convert to VGA memory offset */
1243	memory_map_mode = (pThis->gr[6] >> 2) & 3;
1244	#ifndef IN_RC
1245	RTGCPHYS GCPhys = addr; /* save original address */
1246	#endif
1247
1248	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RZ
1249	/* VMSVGA keeps the VGA and SVGA framebuffers separate unlike this boch-based
1250	VGA implementation, so we fake it by going to ring-3 and using a heap buffer. */
1251	if (!pThis->svga.fEnabled)
1252	{ /likely/ }
1253	else
1254	{
1255	*prc = VINF_IOM_R3_MMIO_READ;
1256	return 0;
1257	}
1258	#endif
1259
1260	addr &= 0x1ffff;
1261	switch(memory_map_mode) {
1262	case 0:
1263	break;
1264	case 1:
1265	if (addr >= 0x10000)
1266	return 0xff;
1267	addr += pThis->bank_offset;
1268	break;
1269	case 2:
1270	addr -= 0x10000;
1271	if (addr >= 0x8000)
1272	return 0xff;
1273	break;
1274	default:
1275	case 3:
1276	addr -= 0x18000;
1277	if (addr >= 0x8000)
1278	return 0xff;
1279	break;
1280	}
1281
1282	if (pThis->sr[4] & 0x08) {
1283	/* chain 4 mode : simplest access */
1284	#ifndef IN_RC
1285	/* If all planes are accessible, then map the page to the frame buffer and make it writable. */
1286	if ( (pThis->sr[2] & 3) == 3
1287	&& !vga_is_dirty(pThis, addr)
1288	&& pThis->GCPhysVRAM)
1289	{
1290	/** @todo only allow read access (doesn't work now) */
1291	STAM_COUNTER_INC(&pThis->StatMapPage);
1292	IOMMMIOMapMMIO2Page(PDMDevHlpGetVM(pThis->CTX_SUFF(pDevIns)), GCPhys,
1293	pThis->GCPhysVRAM + addr, X86_PTE_RW \| X86_PTE_P);
1294	/* Set as dirty as write accesses won't be noticed now. */
1295	vga_set_dirty(pThis, addr);
1296	pThis->fRemappedVGA = true;
1297	}
1298	#endif /* !IN_RC */
1299	VERIFY_VRAM_READ_OFF_RETURN(pThis, addr, *prc);
1300	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1301	ret = !pThis->svga.fEnabled ? pThis->CTX_SUFF(vram_ptr)[addr]
1302	: addr < VMSVGA_VGA_FB_BACKUP_SIZE ? pThis->svga.pbVgaFrameBufferR3[addr] : 0xff;
1303	#else
1304	ret = pThis->CTX_SUFF(vram_ptr)[addr];
1305	#endif
1306	} else if (!(pThis->sr[4] & 0x04)) { /* Host access is controlled by SR4, not GR5! */
1307	/* odd/even mode (aka text mode mapping) */
1308	plane = (pThis->gr[4] & 2) \| (addr & 1);
1309	/* See the comment for a similar line in vga_mem_writeb. */
1310	RTGCPHYS off = ((addr & ~1) * 4) \| plane;
1311	VERIFY_VRAM_READ_OFF_RETURN(pThis, off, *prc);
1312	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1313	ret = !pThis->svga.fEnabled ? pThis->CTX_SUFF(vram_ptr)[off]
1314	: off < VMSVGA_VGA_FB_BACKUP_SIZE ? pThis->svga.pbVgaFrameBufferR3[off] : 0xff;
1315	#else
1316	ret = pThis->CTX_SUFF(vram_ptr)[off];
1317	#endif
1318	} else {
1319	/* standard VGA latched access */
1320	VERIFY_VRAM_READ_OFF_RETURN(pThis, addr * 4 + 3, *prc);
1321	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1322	pThis->latch = !pThis->svga.fEnabled ? ((uint32_t *)pThis->CTX_SUFF(vram_ptr))[addr]
1323	: addr < VMSVGA_VGA_FB_BACKUP_SIZE ? ((uint32_t *)pThis->svga.pbVgaFrameBufferR3)[addr] : UINT32_MAX;
1324	#else
1325	pThis->latch = ((uint32_t *)pThis->CTX_SUFF(vram_ptr))[addr];
1326	#endif
1327	if (!(pThis->gr[5] & 0x08)) {
1328	/* read mode 0 */
1329	plane = pThis->gr[4];
1330	ret = GET_PLANE(pThis->latch, plane);
1331	} else {
1332	/* read mode 1 */
1333	ret = (pThis->latch ^ mask16[pThis->gr[2]]) & mask16[pThis->gr[7]];
1334	ret \|= ret >> 16;
1335	ret \|= ret >> 8;
1336	ret = (~ret) & 0xff;
1337	}
1338	}
1339	Log3((" 0x%02x\n", ret));
1340	return ret;
1341	}
1342
1343	/* called for accesses between 0xa0000 and 0xc0000 */
1344	static int vga_mem_writeb(PVGASTATE pThis, RTGCPHYS addr, uint32_t val)
1345	{
1346	int memory_map_mode, plane, write_mode, b, func_select, mask;
1347	uint32_t write_mask, bit_mask, set_mask;
1348
1349	Log3(("vga: [0x%x] = 0x%02x\n", addr, val));
1350	/* convert to VGA memory offset */
1351	memory_map_mode = (pThis->gr[6] >> 2) & 3;
1352	#ifndef IN_RC
1353	RTGCPHYS GCPhys = addr; /* save original address */
1354	#endif
1355
1356	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RZ
1357	/* VMSVGA keeps the VGA and SVGA framebuffers separate unlike this boch-based
1358	VGA implementation, so we fake it by going to ring-3 and using a heap buffer. */
1359	if (!pThis->svga.fEnabled) { /likely/ }
1360	else return VINF_IOM_R3_MMIO_WRITE;
1361	#endif
1362
1363	addr &= 0x1ffff;
1364	switch(memory_map_mode) {
1365	case 0:
1366	break;
1367	case 1:
1368	if (addr >= 0x10000)
1369	return VINF_SUCCESS;
1370	addr += pThis->bank_offset;
1371	break;
1372	case 2:
1373	addr -= 0x10000;
1374	if (addr >= 0x8000)
1375	return VINF_SUCCESS;
1376	break;
1377	default:
1378	case 3:
1379	addr -= 0x18000;
1380	if (addr >= 0x8000)
1381	return VINF_SUCCESS;
1382	break;
1383	}
1384
1385	if (pThis->sr[4] & 0x08) {
1386	/* chain 4 mode : simplest access */
1387	plane = addr & 3;
1388	mask = (1 << plane);
1389	if (pThis->sr[2] & mask) {
1390	#ifndef IN_RC
1391	/* If all planes are accessible, then map the page to the frame buffer and make it writable. */
1392	if ( (pThis->sr[2] & 3) == 3
1393	&& !vga_is_dirty(pThis, addr)
1394	&& pThis->GCPhysVRAM)
1395	{
1396	STAM_COUNTER_INC(&pThis->StatMapPage);
1397	IOMMMIOMapMMIO2Page(PDMDevHlpGetVM(pThis->CTX_SUFF(pDevIns)), GCPhys,
1398	pThis->GCPhysVRAM + addr, X86_PTE_RW \| X86_PTE_P);
1399	pThis->fRemappedVGA = true;
1400	}
1401	#endif /* !IN_RC */
1402
1403	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, addr);
1404	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1405	if (!pThis->svga.fEnabled)
1406	pThis->CTX_SUFF(vram_ptr)[addr] = val;
1407	else if (addr < VMSVGA_VGA_FB_BACKUP_SIZE)
1408	pThis->svga.pbVgaFrameBufferR3[addr] = val;
1409	else
1410	{
1411	Log(("vga: chain4: out of vmsvga VGA framebuffer bounds! addr=%#x\n", addr));
1412	return VINF_SUCCESS;
1413	}
1414	#else
1415	pThis->CTX_SUFF(vram_ptr)[addr] = val;
1416	#endif
1417	Log3(("vga: chain4: [0x%x]\n", addr));
1418	pThis->plane_updated \|= mask; /* only used to detect font change */
1419	vga_set_dirty(pThis, addr);
1420	}
1421	} else if (!(pThis->sr[4] & 0x04)) { /* Host access is controlled by SR4, not GR5! */
1422	/* odd/even mode (aka text mode mapping) */
1423	plane = (pThis->gr[4] & 2) \| (addr & 1);
1424	mask = (1 << plane);
1425	if (pThis->sr[2] & mask) {
1426	/* 'addr' is offset in a plane, bit 0 selects the plane.
1427	* Mask the bit 0, convert plane index to vram offset,
1428	* that is multiply by the number of planes,
1429	* and select the plane byte in the vram offset.
1430	*/
1431	addr = ((addr & ~1) * 4) \| plane;
1432	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, addr);
1433	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1434	if (!pThis->svga.fEnabled)
1435	pThis->CTX_SUFF(vram_ptr)[addr] = val;
1436	else if (addr < VMSVGA_VGA_FB_BACKUP_SIZE)
1437	pThis->svga.pbVgaFrameBufferR3[addr] = val;
1438	else
1439	{
1440	Log(("vga: odd/even: out of vmsvga VGA framebuffer bounds! addr=%#x\n", addr));
1441	return VINF_SUCCESS;
1442	}
1443	#else
1444	pThis->CTX_SUFF(vram_ptr)[addr] = val;
1445	#endif
1446	Log3(("vga: odd/even: [0x%x]\n", addr));
1447	pThis->plane_updated \|= mask; /* only used to detect font change */
1448	vga_set_dirty(pThis, addr);
1449	}
1450	} else {
1451	/* standard VGA latched access */
1452	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, addr * 4 + 3);
1453
1454	write_mode = pThis->gr[5] & 3;
1455	switch(write_mode) {
1456	default:
1457	case 0:
1458	/* rotate */
1459	b = pThis->gr[3] & 7;
1460	val = ((val >> b) \| (val << (8 - b))) & 0xff;
1461	val \|= val << 8;
1462	val \|= val << 16;
1463
1464	/* apply set/reset mask */
1465	set_mask = mask16[pThis->gr[1]];
1466	val = (val & ~set_mask) \| (mask16[pThis->gr[0]] & set_mask);
1467	bit_mask = pThis->gr[8];
1468	break;
1469	case 1:
1470	val = pThis->latch;
1471	goto do_write;
1472	case 2:
1473	val = mask16[val & 0x0f];
1474	bit_mask = pThis->gr[8];
1475	break;
1476	case 3:
1477	/* rotate */
1478	b = pThis->gr[3] & 7;
1479	val = (val >> b) \| (val << (8 - b));
1480
1481	bit_mask = pThis->gr[8] & val;
1482	val = mask16[pThis->gr[0]];
1483	break;
1484	}
1485
1486	/* apply logical operation */
1487	func_select = pThis->gr[3] >> 3;
1488	switch(func_select) {
1489	case 0:
1490	default:
1491	/* nothing to do */
1492	break;
1493	case 1:
1494	/* and */
1495	val &= pThis->latch;
1496	break;
1497	case 2:
1498	/* or */
1499	val \|= pThis->latch;
1500	break;
1501	case 3:
1502	/* xor */
1503	val ^= pThis->latch;
1504	break;
1505	}
1506
1507	/* apply bit mask */
1508	bit_mask \|= bit_mask << 8;
1509	bit_mask \|= bit_mask << 16;
1510	val = (val & bit_mask) \| (pThis->latch & ~bit_mask);
1511
1512	do_write:
1513	/* mask data according to sr[2] */
1514	mask = pThis->sr[2];
1515	pThis->plane_updated \|= mask; /* only used to detect font change */
1516	write_mask = mask16[mask];
1517	#ifdef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3
1518	uint32_t *pu32Dst;
1519	if (!pThis->svga.fEnabled)
1520	pu32Dst = &((uint32_t *)pThis->CTX_SUFF(vram_ptr))[addr];
1521	else if (addr * 4 + 3 < VMSVGA_VGA_FB_BACKUP_SIZE)
1522	pu32Dst = &((uint32_t *)pThis->svga.pbVgaFrameBufferR3)[addr];
1523	else
1524	{
1525	Log(("vga: latch: out of vmsvga VGA framebuffer bounds! addr=%#x\n", addr));
1526	return VINF_SUCCESS;
1527	}
1528	pu32Dst = (pu32Dst & ~write_mask) \| (val & write_mask);
1529	#else
1530	((uint32_t )pThis->CTX_SUFF(vram_ptr))[addr] = (((uint32_t )pThis->CTX_SUFF(vram_ptr))[addr] & ~write_mask)
1531	\| (val & write_mask);
1532	#endif
1533	Log3(("vga: latch: [0x%x] mask=0x%08x val=0x%08x\n", addr * 4, write_mask, val));
1534	vga_set_dirty(pThis, (addr * 4));
1535	}
1536
1537	return VINF_SUCCESS;
1538	}
1539
1540	#ifdef IN_RING3
1541
1542	typedef void vga_draw_glyph8_func(uint8_t *d, int linesize,
1543	const uint8_t *font_ptr, int h,
1544	uint32_t fgcol, uint32_t bgcol,
1545	int dscan);
1546	typedef void vga_draw_glyph9_func(uint8_t *d, int linesize,
1547	const uint8_t *font_ptr, int h,
1548	uint32_t fgcol, uint32_t bgcol, int dup9);
1549	typedef void vga_draw_line_func(PVGASTATE pThis, uint8_t pbDst, const uint8_t pbSrc, int width);
1550
1551	static inline unsigned int rgb_to_pixel8(unsigned int r, unsigned int g, unsigned b)
1552	{
1553	return ((r >> 5) << 5) \| ((g >> 5) << 2) \| (b >> 6);
1554	}
1555
1556	static inline unsigned int rgb_to_pixel15(unsigned int r, unsigned int g, unsigned b)
1557	{
1558	return ((r >> 3) << 10) \| ((g >> 3) << 5) \| (b >> 3);
1559	}
1560
1561	static inline unsigned int rgb_to_pixel16(unsigned int r, unsigned int g, unsigned b)
1562	{
1563	return ((r >> 3) << 11) \| ((g >> 2) << 5) \| (b >> 3);
1564	}
1565
1566	static inline unsigned int rgb_to_pixel32(unsigned int r, unsigned int g, unsigned b)
1567	{
1568	return (r << 16) \| (g << 8) \| b;
1569	}
1570
1571	#define DEPTH 8
1572	#include "DevVGATmpl.h"
1573
1574	#define DEPTH 15
1575	#include "DevVGATmpl.h"
1576
1577	#define DEPTH 16
1578	#include "DevVGATmpl.h"
1579
1580	#define DEPTH 32
1581	#include "DevVGATmpl.h"
1582
1583	static unsigned int rgb_to_pixel8_dup(unsigned int r, unsigned int g, unsigned b)
1584	{
1585	unsigned int col;
1586	col = rgb_to_pixel8(r, g, b);
1587	col \|= col << 8;
1588	col \|= col << 16;
1589	return col;
1590	}
1591
1592	static unsigned int rgb_to_pixel15_dup(unsigned int r, unsigned int g, unsigned b)
1593	{
1594	unsigned int col;
1595	col = rgb_to_pixel15(r, g, b);
1596	col \|= col << 16;
1597	return col;
1598	}
1599
1600	static unsigned int rgb_to_pixel16_dup(unsigned int r, unsigned int g, unsigned b)
1601	{
1602	unsigned int col;
1603	col = rgb_to_pixel16(r, g, b);
1604	col \|= col << 16;
1605	return col;
1606	}
1607
1608	static unsigned int rgb_to_pixel32_dup(unsigned int r, unsigned int g, unsigned b)
1609	{
1610	unsigned int col;
1611	col = rgb_to_pixel32(r, g, b);
1612	return col;
1613	}
1614
1615	/* return true if the palette was modified */
1616	static bool update_palette16(PVGASTATE pThis)
1617	{
1618	bool full_update = false;
1619	int i;
1620	uint32_t v, col, *palette;
1621
1622	palette = pThis->last_palette;
1623	for(i = 0; i < 16; i++) {
1624	v = pThis->ar[i];
1625	if (pThis->ar[0x10] & 0x80)
1626	v = ((pThis->ar[0x14] & 0xf) << 4) \| (v & 0xf);
1627	else
1628	v = ((pThis->ar[0x14] & 0xc) << 4) \| (v & 0x3f);
1629	v = v * 3;
1630	col = pThis->rgb_to_pixel(c6_to_8(pThis->palette[v]),
1631	c6_to_8(pThis->palette[v + 1]),
1632	c6_to_8(pThis->palette[v + 2]));
1633	if (col != palette[i]) {
1634	full_update = true;
1635	palette[i] = col;
1636	}
1637	}
1638	return full_update;
1639	}
1640
1641	/* return true if the palette was modified */
1642	static bool update_palette256(PVGASTATE pThis)
1643	{
1644	bool full_update = false;
1645	int i;
1646	uint32_t v, col, *palette;
1647	int wide_dac;
1648
1649	palette = pThis->last_palette;
1650	v = 0;
1651	wide_dac = (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & (VBE_DISPI_ENABLED \| VBE_DISPI_8BIT_DAC))
1652	== (VBE_DISPI_ENABLED \| VBE_DISPI_8BIT_DAC);
1653	for(i = 0; i < 256; i++) {
1654	if (wide_dac)
1655	col = pThis->rgb_to_pixel(pThis->palette[v],
1656	pThis->palette[v + 1],
1657	pThis->palette[v + 2]);
1658	else
1659	col = pThis->rgb_to_pixel(c6_to_8(pThis->palette[v]),
1660	c6_to_8(pThis->palette[v + 1]),
1661	c6_to_8(pThis->palette[v + 2]));
1662	if (col != palette[i]) {
1663	full_update = true;
1664	palette[i] = col;
1665	}
1666	v += 3;
1667	}
1668	return full_update;
1669	}
1670
1671	static void vga_get_offsets(PVGASTATE pThis,
1672	uint32_t *pline_offset,
1673	uint32_t *pstart_addr,
1674	uint32_t *pline_compare)
1675	{
1676	uint32_t start_addr, line_offset, line_compare;
1677	#ifdef CONFIG_BOCHS_VBE
1678	if (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
1679	line_offset = pThis->vbe_line_offset;
1680	start_addr = pThis->vbe_start_addr;
1681	line_compare = 65535;
1682	} else
1683	#endif
1684	{
1685	/* compute line_offset in bytes */
1686	line_offset = pThis->cr[0x13];
1687	line_offset <<= 3;
1688	if (!(pThis->cr[0x14] & 0x40) && !(pThis->cr[0x17] & 0x40))
1689	{
1690	/* Word mode. Used for odd/even modes. */
1691	line_offset *= 2;
1692	}
1693
1694	/* starting address */
1695	start_addr = pThis->cr[0x0d] \| (pThis->cr[0x0c] << 8);
1696
1697	/* line compare */
1698	line_compare = pThis->cr[0x18] \|
1699	((pThis->cr[0x07] & 0x10) << 4) \|
1700	((pThis->cr[0x09] & 0x40) << 3);
1701	}
1702	*pline_offset = line_offset;
1703	*pstart_addr = start_addr;
1704	*pline_compare = line_compare;
1705	}
1706
1707	/* update start_addr and line_offset. Return TRUE if modified */
1708	static bool update_basic_params(PVGASTATE pThis)
1709	{
1710	bool full_update = false;
1711	uint32_t start_addr, line_offset, line_compare;
1712
1713	pThis->get_offsets(pThis, &line_offset, &start_addr, &line_compare);
1714
1715	if (line_offset != pThis->line_offset \|\|
1716	start_addr != pThis->start_addr \|\|
1717	line_compare != pThis->line_compare) {
1718	pThis->line_offset = line_offset;
1719	pThis->start_addr = start_addr;
1720	pThis->line_compare = line_compare;
1721	full_update = true;
1722	}
1723	return full_update;
1724	}
1725
1726	static inline int get_depth_index(int depth)
1727	{
1728	switch(depth) {
1729	default:
1730	case 8:
1731	return 0;
1732	case 15:
1733	return 1;
1734	case 16:
1735	return 2;
1736	case 32:
1737	return 3;
1738	}
1739	}
1740
1741	static vga_draw_glyph8_func *vga_draw_glyph8_table[4] = {
1742	vga_draw_glyph8_8,
1743	vga_draw_glyph8_16,
1744	vga_draw_glyph8_16,
1745	vga_draw_glyph8_32,
1746	};
1747
1748	static vga_draw_glyph8_func *vga_draw_glyph16_table[4] = {
1749	vga_draw_glyph16_8,
1750	vga_draw_glyph16_16,
1751	vga_draw_glyph16_16,
1752	vga_draw_glyph16_32,
1753	};
1754
1755	static vga_draw_glyph9_func *vga_draw_glyph9_table[4] = {
1756	vga_draw_glyph9_8,
1757	vga_draw_glyph9_16,
1758	vga_draw_glyph9_16,
1759	vga_draw_glyph9_32,
1760	};
1761
1762	static const uint8_t cursor_glyph[32 * 4] = {
1763	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1764	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1765	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1766	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1767	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1768	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1769	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1770	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1771	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1772	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1773	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1774	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1775	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1776	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1777	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1778	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
1779	};
1780
1781	static const uint8_t empty_glyph[32 * 4] = { 0 };
1782
1783	/*
1784	* Text mode update
1785	* Missing:
1786	* - underline
1787	*/
1788	static int vga_draw_text(PVGASTATE pThis, bool full_update, bool fFailOnResize, bool reset_dirty,
1789	PDMIDISPLAYCONNECTOR *pDrv)
1790	{
1791	int cx, cy, cheight, cw, ch, cattr, height, width, ch_attr;
1792	int cx_min, cx_max, linesize, x_incr;
1793	int cx_min_upd, cx_max_upd, cy_start;
1794	uint32_t offset, fgcol, bgcol, v, cursor_offset;
1795	uint8_t d1, d, src, s1, dest, cursor_ptr;
1796	const uint8_t font_ptr, font_base[2];
1797	int dup9, line_offset, depth_index, dscan;
1798	uint32_t *palette;
1799	uint32_t *ch_attr_ptr;
1800	vga_draw_glyph8_func *vga_draw_glyph8;
1801	vga_draw_glyph9_func *vga_draw_glyph9;
1802	uint64_t time_ns;
1803	bool blink_on, chr_blink_flip, cur_blink_flip;
1804	bool blink_enabled, blink_do_redraw;
1805
1806	full_update \|= update_palette16(pThis);
1807	palette = pThis->last_palette;
1808
1809	/* compute font data address (in plane 2) */
1810	v = pThis->sr[3];
1811	offset = (((v >> 4) & 1) \| ((v << 1) & 6)) * 8192 * 4 + 2;
1812	if (offset != pThis->font_offsets[0]) {
1813	pThis->font_offsets[0] = offset;
1814	full_update = true;
1815	}
1816	font_base[0] = pThis->CTX_SUFF(vram_ptr) + offset;
1817
1818	offset = (((v >> 5) & 1) \| ((v >> 1) & 6)) * 8192 * 4 + 2;
1819	font_base[1] = pThis->CTX_SUFF(vram_ptr) + offset;
1820	if (offset != pThis->font_offsets[1]) {
1821	pThis->font_offsets[1] = offset;
1822	full_update = true;
1823	}
1824	if (pThis->plane_updated & (1 << 2)) {
1825	/* if the plane 2 was modified since the last display, it
1826	indicates the font may have been modified */
1827	pThis->plane_updated = 0;
1828	full_update = true;
1829	}
1830	full_update \|= update_basic_params(pThis);
1831
1832	line_offset = pThis->line_offset;
1833	s1 = pThis->CTX_SUFF(vram_ptr) + (pThis->start_addr * 8); /** @todo r=bird: Add comment why we do 8 instead of 4, it's not so obvious... */
1834
1835	/* double scanning - not for 9-wide modes */
1836	dscan = (pThis->cr[9] >> 7) & 1;
1837
1838	/* total width & height */
1839	cheight = (pThis->cr[9] & 0x1f) + 1;
1840	cw = 8;
1841	if (!(pThis->sr[1] & 0x01))
1842	cw = 9;
1843	if (pThis->sr[1] & 0x08)
1844	cw = 16; /* NOTE: no 18 pixel wide */
1845	x_incr = cw * ((pDrv->cBits + 7) >> 3);
1846	width = (pThis->cr[0x01] + 1);
1847	if (pThis->cr[0x06] == 100) {
1848	/* ugly hack for CGA 160x100x16 - explain me the logic */
1849	height = 100;
1850	} else {
1851	height = pThis->cr[0x12] \|
1852	((pThis->cr[0x07] & 0x02) << 7) \|
1853	((pThis->cr[0x07] & 0x40) << 3);
1854	height = (height + 1) / cheight;
1855	}
1856	if ((height * width) > CH_ATTR_SIZE) {
1857	/* better than nothing: exit if transient size is too big */
1858	return VINF_SUCCESS;
1859	}
1860
1861	if (width != (int)pThis->last_width \|\| height != (int)pThis->last_height \|\|
1862	cw != pThis->last_cw \|\| cheight != pThis->last_ch) {
1863	if (fFailOnResize)
1864	{
1865	/* The caller does not want to call the pfnResize. */
1866	return VERR_TRY_AGAIN;
1867	}
1868	pThis->last_scr_width = width * cw;
1869	pThis->last_scr_height = height * cheight;
1870	/* For text modes the direct use of guest VRAM is not implemented, so bpp and cbLine are 0 here. */
1871	int rc = pDrv->pfnResize(pDrv, 0, NULL, 0, pThis->last_scr_width, pThis->last_scr_height);
1872	pThis->last_width = width;
1873	pThis->last_height = height;
1874	pThis->last_ch = cheight;
1875	pThis->last_cw = cw;
1876	full_update = true;
1877	if (rc == VINF_VGA_RESIZE_IN_PROGRESS)
1878	return rc;
1879	AssertRC(rc);
1880	}
1881	cursor_offset = ((pThis->cr[0x0e] << 8) \| pThis->cr[0x0f]) - pThis->start_addr;
1882	if (cursor_offset != pThis->cursor_offset \|\|
1883	pThis->cr[0xa] != pThis->cursor_start \|\|
1884	pThis->cr[0xb] != pThis->cursor_end) {
1885	/* if the cursor position changed, we update the old and new
1886	chars */
1887	if (pThis->cursor_offset < CH_ATTR_SIZE)
1888	pThis->last_ch_attr[pThis->cursor_offset] = UINT32_MAX;
1889	if (cursor_offset < CH_ATTR_SIZE)
1890	pThis->last_ch_attr[cursor_offset] = UINT32_MAX;
1891	pThis->cursor_offset = cursor_offset;
1892	pThis->cursor_start = pThis->cr[0xa];
1893	pThis->cursor_end = pThis->cr[0xb];
1894	}
1895	cursor_ptr = pThis->CTX_SUFF(vram_ptr) + (pThis->start_addr + cursor_offset) * 8;
1896	depth_index = get_depth_index(pDrv->cBits);
1897	if (cw == 16)
1898	vga_draw_glyph8 = vga_draw_glyph16_table[depth_index];
1899	else
1900	vga_draw_glyph8 = vga_draw_glyph8_table[depth_index];
1901	vga_draw_glyph9 = vga_draw_glyph9_table[depth_index];
1902
1903	dest = pDrv->pbData;
1904	linesize = pDrv->cbScanline;
1905	ch_attr_ptr = pThis->last_ch_attr;
1906	cy_start = -1;
1907	cx_max_upd = -1;
1908	cx_min_upd = width;
1909
1910	/* Figure out if we're in the visible period of the blink cycle. */
1911	time_ns = PDMDevHlpTMTimeVirtGetNano(VGASTATE2DEVINS(pThis));
1912	blink_on = (time_ns % VGA_BLINK_PERIOD_FULL) < VGA_BLINK_PERIOD_ON;
1913	chr_blink_flip = false;
1914	cur_blink_flip = false;
1915	if (pThis->last_chr_blink != blink_on)
1916	{
1917	/* Currently cursor and characters blink at the same rate, but they might not. */
1918	pThis->last_chr_blink = blink_on;
1919	pThis->last_cur_blink = blink_on;
1920	chr_blink_flip = true;
1921	cur_blink_flip = true;
1922	}
1923	blink_enabled = !!(pThis->ar[0x10] & 0x08); /* Attribute controller blink enable. */
1924
1925	for(cy = 0; cy < (height - dscan); cy = cy + (1 << dscan)) {
1926	d1 = dest;
1927	src = s1;
1928	cx_min = width;
1929	cx_max = -1;
1930	for(cx = 0; cx < width; cx++) {
1931	ch_attr = (uint16_t )src;
1932	/* Figure out if character needs redrawing due to blink state change. */
1933	blink_do_redraw = blink_enabled && chr_blink_flip && (ch_attr & 0x8000);
1934	if (full_update \|\| ch_attr != (int)*ch_attr_ptr \|\| blink_do_redraw \|\| (src == cursor_ptr && cur_blink_flip)) {
1935	if (cx < cx_min)
1936	cx_min = cx;
1937	if (cx > cx_max)
1938	cx_max = cx;
1939	if (reset_dirty)
1940	*ch_attr_ptr = ch_attr;
1941	#ifdef WORDS_BIGENDIAN
1942	ch = ch_attr >> 8;
1943	cattr = ch_attr & 0xff;
1944	#else
1945	ch = ch_attr & 0xff;
1946	cattr = ch_attr >> 8;
1947	#endif
1948	font_ptr = font_base[(cattr >> 3) & 1];
1949	font_ptr += 32 * 4 * ch;
1950	bgcol = palette[cattr >> 4];
1951	fgcol = palette[cattr & 0x0f];
1952
1953	if (blink_enabled && (cattr & 0x80))
1954	{
1955	bgcol = palette[(cattr >> 4) & 7];
1956	if (!blink_on)
1957	font_ptr = empty_glyph;
1958	}
1959
1960	if (cw != 9) {
1961	if (pThis->fRenderVRAM)
1962	vga_draw_glyph8(d1, linesize,
1963	font_ptr, cheight, fgcol, bgcol, dscan);
1964	} else {
1965	dup9 = 0;
1966	if (ch >= 0xb0 && ch <= 0xdf && (pThis->ar[0x10] & 0x04))
1967	dup9 = 1;
1968	if (pThis->fRenderVRAM)
1969	vga_draw_glyph9(d1, linesize,
1970	font_ptr, cheight, fgcol, bgcol, dup9);
1971	}
1972	if (src == cursor_ptr &&
1973	!(pThis->cr[0x0a] & 0x20)) {
1974	int line_start, line_last, h;
1975
1976	/* draw the cursor if within the visible period */
1977	if (blink_on) {
1978	line_start = pThis->cr[0x0a] & 0x1f;
1979	line_last = pThis->cr[0x0b] & 0x1f;
1980	/* XXX: check that */
1981	if (line_last > cheight - 1)
1982	line_last = cheight - 1;
1983	if (line_last >= line_start && line_start < cheight) {
1984	h = line_last - line_start + 1;
1985	d = d1 + (linesize * line_start << dscan);
1986	if (cw != 9) {
1987	if (pThis->fRenderVRAM)
1988	vga_draw_glyph8(d, linesize,
1989	cursor_glyph, h, fgcol, bgcol, dscan);
1990	} else {
1991	if (pThis->fRenderVRAM)
1992	vga_draw_glyph9(d, linesize,
1993	cursor_glyph, h, fgcol, bgcol, 1);
1994	}
1995	}
1996	}
1997	}
1998	}
1999	d1 += x_incr;
2000	src += 8; /* Every second byte of a plane is used in text mode. */
2001	ch_attr_ptr++;
2002	}
2003	if (cx_max != -1) {
2004	/* Keep track of the bounding rectangle for updates. */
2005	if (cy_start == -1)
2006	cy_start = cy;
2007	if (cx_min_upd > cx_min)
2008	cx_min_upd = cx_min;
2009	if (cx_max_upd < cx_max)
2010	cx_max_upd = cx_max;
2011	} else if (cy_start >= 0) {
2012	/* Flush updates to display. */
2013	pDrv->pfnUpdateRect(pDrv, cx_min_upd * cw, cy_start * cheight,
2014	(cx_max_upd - cx_min_upd + 1) * cw, (cy - cy_start) * cheight);
2015	cy_start = -1;
2016	cx_max_upd = -1;
2017	cx_min_upd = width;
2018	}
2019	dest += linesize * cheight << dscan;
2020	s1 += line_offset;
2021	}
2022	if (cy_start >= 0)
2023	/* Flush any remaining changes to display. */
2024	pDrv->pfnUpdateRect(pDrv, cx_min_upd * cw, cy_start * cheight,
2025	(cx_max_upd - cx_min_upd + 1) * cw, (cy - cy_start) * cheight);
2026	return VINF_SUCCESS;
2027	}
2028
2029	enum {
2030	VGA_DRAW_LINE2,
2031	VGA_DRAW_LINE2D2,
2032	VGA_DRAW_LINE4,
2033	VGA_DRAW_LINE4D2,
2034	VGA_DRAW_LINE8D2,
2035	VGA_DRAW_LINE8,
2036	VGA_DRAW_LINE15,
2037	VGA_DRAW_LINE16,
2038	VGA_DRAW_LINE24,
2039	VGA_DRAW_LINE32,
2040	VGA_DRAW_LINE_NB
2041	};
2042
2043	static vga_draw_line_func vga_draw_line_table[4 VGA_DRAW_LINE_NB] = {
2044	vga_draw_line2_8,
2045	vga_draw_line2_16,
2046	vga_draw_line2_16,
2047	vga_draw_line2_32,
2048
2049	vga_draw_line2d2_8,
2050	vga_draw_line2d2_16,
2051	vga_draw_line2d2_16,
2052	vga_draw_line2d2_32,
2053
2054	vga_draw_line4_8,
2055	vga_draw_line4_16,
2056	vga_draw_line4_16,
2057	vga_draw_line4_32,
2058
2059	vga_draw_line4d2_8,
2060	vga_draw_line4d2_16,
2061	vga_draw_line4d2_16,
2062	vga_draw_line4d2_32,
2063
2064	vga_draw_line8d2_8,
2065	vga_draw_line8d2_16,
2066	vga_draw_line8d2_16,
2067	vga_draw_line8d2_32,
2068
2069	vga_draw_line8_8,
2070	vga_draw_line8_16,
2071	vga_draw_line8_16,
2072	vga_draw_line8_32,
2073
2074	vga_draw_line15_8,
2075	vga_draw_line15_15,
2076	vga_draw_line15_16,
2077	vga_draw_line15_32,
2078
2079	vga_draw_line16_8,
2080	vga_draw_line16_15,
2081	vga_draw_line16_16,
2082	vga_draw_line16_32,
2083
2084	vga_draw_line24_8,
2085	vga_draw_line24_15,
2086	vga_draw_line24_16,
2087	vga_draw_line24_32,
2088
2089	vga_draw_line32_8,
2090	vga_draw_line32_15,
2091	vga_draw_line32_16,
2092	vga_draw_line32_32,
2093	};
2094
2095	static int vga_get_bpp(PVGASTATE pThis)
2096	{
2097	int ret;
2098	#ifdef CONFIG_BOCHS_VBE
2099	if (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
2100	ret = pThis->vbe_regs[VBE_DISPI_INDEX_BPP];
2101	} else
2102	#endif
2103	{
2104	ret = 0;
2105	}
2106	return ret;
2107	}
2108
2109	static void vga_get_resolution(PVGASTATE pThis, int pwidth, int pheight)
2110	{
2111	int width, height;
2112	#ifdef CONFIG_BOCHS_VBE
2113	if (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
2114	width = pThis->vbe_regs[VBE_DISPI_INDEX_XRES];
2115	height = RT_MIN(pThis->vbe_regs[VBE_DISPI_INDEX_YRES],
2116	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT]);
2117	} else
2118	#endif
2119	{
2120	width = (pThis->cr[0x01] + 1) * 8;
2121	height = pThis->cr[0x12] \|
2122	((pThis->cr[0x07] & 0x02) << 7) \|
2123	((pThis->cr[0x07] & 0x40) << 3);
2124	height = (height + 1);
2125	}
2126	*pwidth = width;
2127	*pheight = height;
2128	}
2129
2130	/**
2131	* Performs the display driver resizing when in graphics mode.
2132	*
2133	* This will recalc / update any status data depending on the driver
2134	* properties (bit depth mostly).
2135	*
2136	* @returns VINF_SUCCESS on success.
2137	* @returns VINF_VGA_RESIZE_IN_PROGRESS if the operation wasn't complete.
2138	* @param pThis Pointer to the vga state.
2139	* @param cx The width.
2140	* @param cy The height.
2141	* @param pDrv The display connector.
2142	*/
2143	static int vga_resize_graphic(PVGASTATE pThis, int cx, int cy,
2144	PDMIDISPLAYCONNECTOR *pDrv)
2145	{
2146	const unsigned cBits = pThis->get_bpp(pThis);
2147
2148	int rc;
2149	AssertReturn(cx, VERR_INVALID_PARAMETER);
2150	AssertReturn(cy, VERR_INVALID_PARAMETER);
2151	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
2152
2153	if (!pThis->line_offset)
2154	return VERR_INTERNAL_ERROR;
2155
2156	#if 0 //def VBOX_WITH_VDMA
2157	/** @todo we get a second resize here when VBVA is on, while we actually should not */
2158	/* do not do pfnResize in case VBVA is on since all mode changes are performed over VBVA
2159	* we are checking for VDMA state here to ensure this code works only for WDDM driver,
2160	* although we should avoid calling pfnResize for XPDM as well, since pfnResize is actually an extra resize
2161	* event and generally only pfnVBVAxxx calls should be used with HGSMI + VBVA
2162	*
2163	* The reason for doing this for WDDM driver only now is to avoid regressions of the current code */
2164	PVBOXVDMAHOST pVdma = pThis->pVdma;
2165	if (pVdma && vboxVDMAIsEnabled(pVdma))
2166	rc = VINF_SUCCESS;
2167	else
2168	#endif
2169	{
2170	/* Skip the resize if the values are not valid. */
2171	if (pThis->start_addr * 4 + pThis->line_offset * cy < pThis->vram_size)
2172	/* Take into account the programmed start address (in DWORDs) of the visible screen. */
2173	rc = pDrv->pfnResize(pDrv, cBits, pThis->CTX_SUFF(vram_ptr) + pThis->start_addr * 4, pThis->line_offset, cx, cy);
2174	else
2175	{
2176	/* Change nothing in the VGA state. Lets hope the guest will eventually programm correct values. */
2177	return VERR_TRY_AGAIN;
2178	}
2179	}
2180
2181	/* last stuff */
2182	pThis->last_bpp = cBits;
2183	pThis->last_scr_width = cx;
2184	pThis->last_scr_height = cy;
2185	pThis->last_width = cx;
2186	pThis->last_height = cy;
2187
2188	if (rc == VINF_VGA_RESIZE_IN_PROGRESS)
2189	return rc;
2190	AssertRC(rc);
2191
2192	/* update palette */
2193	switch (pDrv->cBits)
2194	{
2195	case 32: pThis->rgb_to_pixel = rgb_to_pixel32_dup; break;
2196	case 16:
2197	default: pThis->rgb_to_pixel = rgb_to_pixel16_dup; break;
2198	case 15: pThis->rgb_to_pixel = rgb_to_pixel15_dup; break;
2199	case 8: pThis->rgb_to_pixel = rgb_to_pixel8_dup; break;
2200	}
2201	if (pThis->shift_control == 0)
2202	update_palette16(pThis);
2203	else if (pThis->shift_control == 1)
2204	update_palette16(pThis);
2205	return VINF_SUCCESS;
2206	}
2207
2208	# ifdef VBOX_WITH_VMSVGA
2209
2210	int vgaR3UpdateDisplay(VGAState *s, unsigned xStart, unsigned yStart, unsigned cx, unsigned cy)
2211	{
2212	uint32_t v;
2213	vga_draw_line_func *vga_draw_line;
2214
2215	if (!s->fRenderVRAM)
2216	{
2217	s->pDrv->pfnUpdateRect(s->pDrv, xStart, yStart, cx, cy);
2218	return VINF_SUCCESS;
2219	}
2220	/** @todo might crash if a blit follows a resolution change very quickly (seen this many times!) */
2221
2222	if ( s->svga.uWidth == VMSVGA_VAL_UNINITIALIZED
2223	\|\| s->svga.uHeight == VMSVGA_VAL_UNINITIALIZED
2224	\|\| s->svga.uBpp == VMSVGA_VAL_UNINITIALIZED)
2225	{
2226	/* Intermediate state; skip redraws. */
2227	AssertFailed();
2228	return VINF_SUCCESS;
2229	}
2230
2231	uint32_t cBits;
2232	switch (s->svga.uBpp) {
2233	default:
2234	case 0:
2235	case 8:
2236	AssertFailed();
2237	return VERR_NOT_IMPLEMENTED;
2238	case 15:
2239	v = VGA_DRAW_LINE15;
2240	cBits = 16;
2241	break;
2242	case 16:
2243	v = VGA_DRAW_LINE16;
2244	cBits = 16;
2245	break;
2246	case 24:
2247	v = VGA_DRAW_LINE24;
2248	cBits = 24;
2249	break;
2250	case 32:
2251	v = VGA_DRAW_LINE32;
2252	cBits = 32;
2253	break;
2254	}
2255	vga_draw_line = vga_draw_line_table[v * 4 + get_depth_index(s->pDrv->cBits)];
2256
2257	uint32_t offSrc = (xStart * cBits) / 8 + s->svga.cbScanline * yStart;
2258	uint32_t offDst = (xStart * RT_ALIGN(s->pDrv->cBits, 8)) / 8 + s->pDrv->cbScanline * yStart;
2259
2260	uint8_t *pbDst = s->pDrv->pbData + offDst;
2261	uint8_t const *pbSrc = s->CTX_SUFF(vram_ptr) + offSrc;
2262
2263	for (unsigned y = yStart; y < yStart + cy; y++)
2264	{
2265	vga_draw_line(s, pbDst, pbSrc, cx);
2266
2267	pbDst += s->pDrv->cbScanline;
2268	pbSrc += s->svga.cbScanline;
2269	}
2270	s->pDrv->pfnUpdateRect(s->pDrv, xStart, yStart, cx, cy);
2271
2272	return VINF_SUCCESS;
2273	}
2274
2275	/*
2276	* graphic modes
2277	*/
2278	static int vmsvga_draw_graphic(PVGASTATE pThis, bool fFullUpdate, bool fFailOnResize, bool reset_dirty,
2279	PDMIDISPLAYCONNECTOR *pDrv)
2280	{
2281	RT_NOREF1(fFailOnResize);
2282
2283	uint32_t const cx = pThis->last_scr_width;
2284	uint32_t const cxDisplay = cx;
2285	uint32_t const cy = pThis->last_scr_height;
2286	uint32_t cBits = pThis->last_bpp;
2287
2288	if ( cx == VMSVGA_VAL_UNINITIALIZED
2289	\|\| cx == 0
2290	\|\| cy == VMSVGA_VAL_UNINITIALIZED
2291	\|\| cy == 0
2292	\|\| cBits == VMSVGA_VAL_UNINITIALIZED
2293	\|\| cBits == 0)
2294	{
2295	/* Intermediate state; skip redraws. */
2296	return VINF_SUCCESS;
2297	}
2298
2299	unsigned v;
2300	switch (cBits)
2301	{
2302	case 8:
2303	/* Note! experimental, not sure if this really works... */
2304	/** @todo fFullUpdate \|= update_palette256(pThis); - need fFullUpdate but not
2305	* copying anything to last_palette. */
2306	v = VGA_DRAW_LINE8;
2307	break;
2308	case 15:
2309	v = VGA_DRAW_LINE15;
2310	cBits = 16;
2311	break;
2312	case 16:
2313	v = VGA_DRAW_LINE16;
2314	break;
2315	case 24:
2316	v = VGA_DRAW_LINE24;
2317	break;
2318	case 32:
2319	v = VGA_DRAW_LINE32;
2320	break;
2321	default:
2322	case 0:
2323	AssertFailed();
2324	return VERR_NOT_IMPLEMENTED;
2325	}
2326	vga_draw_line_func pfnVgaDrawLine = vga_draw_line_table[v 4 + get_depth_index(pDrv->cBits)];
2327
2328	Assert(!pThis->cursor_invalidate);
2329	Assert(!pThis->cursor_draw_line);
2330	//not used// if (pThis->cursor_invalidate)
2331	//not used// pThis->cursor_invalidate(pThis);
2332
2333	uint8_t *pbDst = pDrv->pbData;
2334	uint32_t cbDstScanline = pDrv->cbScanline;
2335	uint32_t offSrcStart = 0; /* always start at the beginning of the framebuffer */
2336	uint32_t cbScanline = (cx * cBits + 7) / 8; /* The visible width of a scanline. */
2337	uint32_t yUpdateRectTop = UINT32_MAX;
2338	uint32_t offPageMin = UINT32_MAX;
2339	int32_t offPageMax = -1;
2340	uint32_t y;
2341	for (y = 0; y < cy; y++)
2342	{
2343	uint32_t offSrcLine = offSrcStart + y * cbScanline;
2344	uint32_t offPage0 = offSrcLine & ~PAGE_OFFSET_MASK;
2345	uint32_t offPage1 = (offSrcLine + cbScanline - 1) & ~PAGE_OFFSET_MASK;
2346	/** @todo r=klaus this assumes that a line is fully covered by 3 pages,
2347	* irrespective of alignment. Not guaranteed for high res modes, i.e.
2348	* anything wider than 2050 pixels @32bpp. Need to check all pages
2349	* between the first and last one. */
2350	bool fUpdate = fFullUpdate \| vga_is_dirty(pThis, offPage0) \| vga_is_dirty(pThis, offPage1);
2351	if (offPage1 - offPage0 > PAGE_SIZE)
2352	/* if wide line, can use another page */
2353	fUpdate \|= vga_is_dirty(pThis, offPage0 + PAGE_SIZE);
2354	/* explicit invalidation for the hardware cursor */
2355	fUpdate \|= (pThis->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1;
2356	if (fUpdate)
2357	{
2358	if (yUpdateRectTop == UINT32_MAX)
2359	yUpdateRectTop = y;
2360	if (offPage0 < offPageMin)
2361	offPageMin = offPage0;
2362	if ((int32_t)offPage1 > offPageMax)
2363	offPageMax = offPage1;
2364	if (pThis->fRenderVRAM)
2365	pfnVgaDrawLine(pThis, pbDst, pThis->CTX_SUFF(vram_ptr) + offSrcLine, cx);
2366	//not used// if (pThis->cursor_draw_line)
2367	//not used// pThis->cursor_draw_line(pThis, pbDst, y);
2368	}
2369	else if (yUpdateRectTop != UINT32_MAX)
2370	{
2371	/* flush to display */
2372	Log(("Flush to display (%d,%d)(%d,%d)\n", 0, yUpdateRectTop, cxDisplay, y - yUpdateRectTop));
2373	pDrv->pfnUpdateRect(pDrv, 0, yUpdateRectTop, cxDisplay, y - yUpdateRectTop);
2374	yUpdateRectTop = UINT32_MAX;
2375	}
2376	pbDst += cbDstScanline;
2377	}
2378	if (yUpdateRectTop != UINT32_MAX)
2379	{
2380	/* flush to display */
2381	Log(("Flush to display (%d,%d)(%d,%d)\n", 0, yUpdateRectTop, cxDisplay, y - yUpdateRectTop));
2382	pDrv->pfnUpdateRect(pDrv, 0, yUpdateRectTop, cxDisplay, y - yUpdateRectTop);
2383	}
2384
2385	/* reset modified pages */
2386	if (offPageMax != -1 && reset_dirty)
2387	vga_reset_dirty(pThis, offPageMin, offPageMax + PAGE_SIZE);
2388	memset(pThis->invalidated_y_table, 0, ((cy + 31) >> 5) * 4);
2389
2390	return VINF_SUCCESS;
2391	}
2392
2393	# endif /* VBOX_WITH_VMSVGA */
2394
2395	/*
2396	* graphic modes
2397	*/
2398	static int vga_draw_graphic(PVGASTATE pThis, bool full_update, bool fFailOnResize, bool reset_dirty,
2399	PDMIDISPLAYCONNECTOR *pDrv)
2400	{
2401	int y1, y2, y, page_min, page_max, linesize, y_start, double_scan;
2402	int width, height, shift_control, line_offset, page0, page1, bwidth, bits;
2403	int disp_width, multi_run;
2404	uint8_t *d;
2405	uint32_t v, addr1, addr;
2406	vga_draw_line_func *vga_draw_line;
2407
2408	bool offsets_changed = update_basic_params(pThis);
2409
2410	full_update \|= offsets_changed;
2411
2412	pThis->get_resolution(pThis, &width, &height);
2413	disp_width = width;
2414
2415	shift_control = (pThis->gr[0x05] >> 5) & 3;
2416	double_scan = (pThis->cr[0x09] >> 7);
2417	multi_run = double_scan;
2418	if (shift_control != pThis->shift_control \|\|
2419	double_scan != pThis->double_scan) {
2420	full_update = true;
2421	pThis->shift_control = shift_control;
2422	pThis->double_scan = double_scan;
2423	}
2424
2425	if (shift_control == 0) {
2426	full_update \|= update_palette16(pThis);
2427	if (pThis->sr[0x01] & 8) {
2428	v = VGA_DRAW_LINE4D2;
2429	disp_width <<= 1;
2430	} else {
2431	v = VGA_DRAW_LINE4;
2432	}
2433	bits = 4;
2434	} else if (shift_control == 1) {
2435	full_update \|= update_palette16(pThis);
2436	if (pThis->sr[0x01] & 8) {
2437	v = VGA_DRAW_LINE2D2;
2438	disp_width <<= 1;
2439	} else {
2440	v = VGA_DRAW_LINE2;
2441	}
2442	bits = 4;
2443	} else {
2444	switch(pThis->get_bpp(pThis)) {
2445	default:
2446	case 0:
2447	full_update \|= update_palette256(pThis);
2448	v = VGA_DRAW_LINE8D2;
2449	bits = 4;
2450	break;
2451	case 8:
2452	full_update \|= update_palette256(pThis);
2453	v = VGA_DRAW_LINE8;
2454	bits = 8;
2455	break;
2456	case 15:
2457	v = VGA_DRAW_LINE15;
2458	bits = 16;
2459	break;
2460	case 16:
2461	v = VGA_DRAW_LINE16;
2462	bits = 16;
2463	break;
2464	case 24:
2465	v = VGA_DRAW_LINE24;
2466	bits = 24;
2467	break;
2468	case 32:
2469	v = VGA_DRAW_LINE32;
2470	bits = 32;
2471	break;
2472	}
2473	}
2474	if ( disp_width != (int)pThis->last_width
2475	\|\| height != (int)pThis->last_height
2476	\|\| pThis->get_bpp(pThis) != (int)pThis->last_bpp
2477	\|\| (offsets_changed && !pThis->fRenderVRAM))
2478	{
2479	if (fFailOnResize)
2480	{
2481	/* The caller does not want to call the pfnResize. */
2482	return VERR_TRY_AGAIN;
2483	}
2484	int rc = vga_resize_graphic(pThis, disp_width, height, pDrv);
2485	if (rc != VINF_SUCCESS) /* Return any rc, particularly VINF_VGA_RESIZE_IN_PROGRESS, to the caller. */
2486	return rc;
2487	full_update = true;
2488	}
2489
2490	if (pThis->fRenderVRAM)
2491	{
2492	/* Do not update the destination buffer if it is not big enough.
2493	* Can happen if the resize request was ignored by the driver.
2494	* Compare with 'disp_width', because it is what the framebuffer has been resized to.
2495	*/
2496	if ( pDrv->cx != (uint32_t)disp_width
2497	\|\| pDrv->cy != (uint32_t)height)
2498	{
2499	LogRel(("Framebuffer mismatch: vga %dx%d, drv %dx%d!!!\n",
2500	disp_width, height,
2501	pDrv->cx, pDrv->cy));
2502	return VINF_SUCCESS;
2503	}
2504	}
2505
2506	vga_draw_line = vga_draw_line_table[v * 4 + get_depth_index(pDrv->cBits)];
2507
2508	if (pThis->cursor_invalidate)
2509	pThis->cursor_invalidate(pThis);
2510
2511	line_offset = pThis->line_offset;
2512	#if 0
2513	Log(("w=%d h=%d v=%d line_offset=%d cr[0x09]=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=0x%02x\n",
2514	width, height, v, line_offset, pThis->cr[9], pThis->cr[0x17], pThis->line_compare, pThis->sr[0x01]));
2515	#endif
2516	addr1 = (pThis->start_addr * 4);
2517	bwidth = (width * bits + 7) / 8; /* The visible width of a scanline. */
2518	y_start = -1;
2519	page_min = 0x7fffffff;
2520	page_max = -1;
2521	d = pDrv->pbData;
2522	linesize = pDrv->cbScanline;
2523
2524	if (!(pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED))
2525	pThis->vga_addr_mask = 0x3ffff;
2526	else
2527	pThis->vga_addr_mask = UINT32_MAX;
2528
2529	y1 = 0;
2530	y2 = pThis->cr[0x09] & 0x1F; /* starting row scan count */
2531	for(y = 0; y < height; y++) {
2532	addr = addr1;
2533	/* CGA/MDA compatibility. Note that these addresses are all
2534	* shifted left by two compared to VGA specs.
2535	*/
2536	if (!(pThis->cr[0x17] & 1)) {
2537	addr = (addr & ~(1 << 15)) \| ((y1 & 1) << 15);
2538	}
2539	if (!(pThis->cr[0x17] & 2)) {
2540	addr = (addr & ~(1 << 16)) \| ((y1 & 2) << 15);
2541	}
2542	addr &= pThis->vga_addr_mask;
2543	page0 = addr & ~PAGE_OFFSET_MASK;
2544	page1 = (addr + bwidth - 1) & ~PAGE_OFFSET_MASK;
2545	/** @todo r=klaus this assumes that a line is fully covered by 3 pages,
2546	* irrespective of alignment. Not guaranteed for high res modes, i.e.
2547	* anything wider than 2050 pixels @32bpp. Need to check all pages
2548	* between the first and last one. */
2549	bool update = full_update \| vga_is_dirty(pThis, page0) \| vga_is_dirty(pThis, page1);
2550	if (page1 - page0 > PAGE_SIZE) {
2551	/* if wide line, can use another page */
2552	update \|= vga_is_dirty(pThis, page0 + PAGE_SIZE);
2553	}
2554	/* explicit invalidation for the hardware cursor */
2555	update \|= (pThis->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1;
2556	if (update) {
2557	if (y_start < 0)
2558	y_start = y;
2559	if (page0 < page_min)
2560	page_min = page0;
2561	if (page1 > page_max)
2562	page_max = page1;
2563	if (pThis->fRenderVRAM)
2564	vga_draw_line(pThis, d, pThis->CTX_SUFF(vram_ptr) + addr, width);
2565	if (pThis->cursor_draw_line)
2566	pThis->cursor_draw_line(pThis, d, y);
2567	} else {
2568	if (y_start >= 0) {
2569	/* flush to display */
2570	pDrv->pfnUpdateRect(pDrv, 0, y_start, disp_width, y - y_start);
2571	y_start = -1;
2572	}
2573	}
2574	if (!multi_run) {
2575	y1++;
2576	multi_run = double_scan;
2577
2578	if (y2 == 0) {
2579	y2 = pThis->cr[0x09] & 0x1F;
2580	addr1 += line_offset;
2581	} else {
2582	--y2;
2583	}
2584	} else {
2585	multi_run--;
2586	}
2587	/* line compare acts on the displayed lines */
2588	if ((uint32_t)y == pThis->line_compare)
2589	addr1 = 0;
2590	d += linesize;
2591	}
2592	if (y_start >= 0) {
2593	/* flush to display */
2594	pDrv->pfnUpdateRect(pDrv, 0, y_start, disp_width, y - y_start);
2595	}
2596	/* reset modified pages */
2597	if (page_max != -1 && reset_dirty) {
2598	vga_reset_dirty(pThis, page_min, page_max + PAGE_SIZE);
2599	}
2600	memset(pThis->invalidated_y_table, 0, ((height + 31) >> 5) * 4);
2601	return VINF_SUCCESS;
2602	}
2603
2604	/*
2605	* blanked modes
2606	*/
2607	static int vga_draw_blank(PVGASTATE pThis, bool full_update, bool fFailOnResize, bool reset_dirty,
2608	PDMIDISPLAYCONNECTOR *pDrv)
2609	{
2610	int i, w, val;
2611	uint8_t *d;
2612	uint32_t cbScanline = pDrv->cbScanline;
2613	uint32_t page_min, page_max;
2614
2615	if (pThis->last_width != 0)
2616	{
2617	if (fFailOnResize)
2618	{
2619	/* The caller does not want to call the pfnResize. */
2620	return VERR_TRY_AGAIN;
2621	}
2622	pThis->last_width = 0;
2623	pThis->last_height = 0;
2624	/* For blanking signal width=0, height=0, bpp=0 and cbLine=0 here.
2625	* There is no screen content, which distinguishes it from text mode. */
2626	pDrv->pfnResize(pDrv, 0, NULL, 0, 0, 0);
2627	}
2628	/* reset modified pages, i.e. everything */
2629	if (reset_dirty && pThis->last_scr_height > 0)
2630	{
2631	page_min = (pThis->start_addr * 4) & ~PAGE_OFFSET_MASK;
2632	/* round up page_max by one page, as otherwise this can be -PAGE_SIZE,
2633	* which causes assertion trouble in vga_reset_dirty. */
2634	page_max = ( pThis->start_addr * 4 + pThis->line_offset * pThis->last_scr_height
2635	- 1 + PAGE_SIZE) & ~PAGE_OFFSET_MASK;
2636	vga_reset_dirty(pThis, page_min, page_max + PAGE_SIZE);
2637	}
2638	if (pDrv->pbData == pThis->vram_ptrR3) /* Do not clear the VRAM itself. */
2639	return VINF_SUCCESS;
2640	if (!full_update)
2641	return VINF_SUCCESS;
2642	if (pThis->last_scr_width <= 0 \|\| pThis->last_scr_height <= 0)
2643	return VINF_SUCCESS;
2644	if (pDrv->cBits == 8)
2645	val = pThis->rgb_to_pixel(0, 0, 0);
2646	else
2647	val = 0;
2648	w = pThis->last_scr_width * ((pDrv->cBits + 7) >> 3);
2649	d = pDrv->pbData;
2650	if (pThis->fRenderVRAM)
2651	{
2652	for(i = 0; i < (int)pThis->last_scr_height; i++) {
2653	memset(d, val, w);
2654	d += cbScanline;
2655	}
2656	}
2657	pDrv->pfnUpdateRect(pDrv, 0, 0, pThis->last_scr_width, pThis->last_scr_height);
2658	return VINF_SUCCESS;
2659	}
2660
2661
2662	#define GMODE_TEXT 0
2663	#define GMODE_GRAPH 1
2664	#define GMODE_BLANK 2
2665	#ifdef VBOX_WITH_VMSVGA
2666	#define GMODE_SVGA 3
2667	#endif
2668
2669	static int vga_update_display(PVGASTATE pThis, bool fUpdateAll, bool fFailOnResize, bool reset_dirty,
2670	PDMIDISPLAYCONNECTOR pDrv, int32_t pcur_graphic_mode)
2671	{
2672	int rc = VINF_SUCCESS;
2673	int graphic_mode;
2674
2675	if (pDrv->cBits == 0) {
2676	/* nothing to do */
2677	} else {
2678	switch(pDrv->cBits) {
2679	case 8:
2680	pThis->rgb_to_pixel = rgb_to_pixel8_dup;
2681	break;
2682	case 15:
2683	pThis->rgb_to_pixel = rgb_to_pixel15_dup;
2684	break;
2685	default:
2686	case 16:
2687	pThis->rgb_to_pixel = rgb_to_pixel16_dup;
2688	break;
2689	case 32:
2690	pThis->rgb_to_pixel = rgb_to_pixel32_dup;
2691	break;
2692	}
2693
2694	#ifdef VBOX_WITH_VMSVGA
2695	if (pThis->svga.fEnabled) {
2696	graphic_mode = GMODE_SVGA;
2697	}
2698	else
2699	#endif
2700	if (!(pThis->ar_index & 0x20) \|\| (pThis->sr[0x01] & 0x20)) {
2701	graphic_mode = GMODE_BLANK;
2702	} else {
2703	graphic_mode = pThis->gr[6] & 1 ? GMODE_GRAPH : GMODE_TEXT;
2704	}
2705	bool full_update = fUpdateAll \|\| graphic_mode != *pcur_graphic_mode;
2706	if (full_update) {
2707	*pcur_graphic_mode = graphic_mode;
2708	}
2709	switch(graphic_mode) {
2710	case GMODE_TEXT:
2711	rc = vga_draw_text(pThis, full_update, fFailOnResize, reset_dirty, pDrv);
2712	break;
2713	case GMODE_GRAPH:
2714	rc = vga_draw_graphic(pThis, full_update, fFailOnResize, reset_dirty, pDrv);
2715	break;
2716	#ifdef VBOX_WITH_VMSVGA
2717	case GMODE_SVGA:
2718	rc = vmsvga_draw_graphic(pThis, full_update, fFailOnResize, reset_dirty, pDrv);
2719	break;
2720	#endif
2721	case GMODE_BLANK:
2722	default:
2723	rc = vga_draw_blank(pThis, full_update, fFailOnResize, reset_dirty, pDrv);
2724	break;
2725	}
2726	}
2727	return rc;
2728	}
2729
2730	static void vga_save(PSSMHANDLE pSSM, PVGASTATE pThis)
2731	{
2732	int i;
2733
2734	SSMR3PutU32(pSSM, pThis->latch);
2735	SSMR3PutU8(pSSM, pThis->sr_index);
2736	SSMR3PutMem(pSSM, pThis->sr, 8);
2737	SSMR3PutU8(pSSM, pThis->gr_index);
2738	SSMR3PutMem(pSSM, pThis->gr, 16);
2739	SSMR3PutU8(pSSM, pThis->ar_index);
2740	SSMR3PutMem(pSSM, pThis->ar, 21);
2741	SSMR3PutU32(pSSM, pThis->ar_flip_flop);
2742	SSMR3PutU8(pSSM, pThis->cr_index);
2743	SSMR3PutMem(pSSM, pThis->cr, 256);
2744	SSMR3PutU8(pSSM, pThis->msr);
2745	SSMR3PutU8(pSSM, pThis->fcr);
2746	SSMR3PutU8(pSSM, pThis->st00);
2747	SSMR3PutU8(pSSM, pThis->st01);
2748
2749	SSMR3PutU8(pSSM, pThis->dac_state);
2750	SSMR3PutU8(pSSM, pThis->dac_sub_index);
2751	SSMR3PutU8(pSSM, pThis->dac_read_index);
2752	SSMR3PutU8(pSSM, pThis->dac_write_index);
2753	SSMR3PutMem(pSSM, pThis->dac_cache, 3);
2754	SSMR3PutMem(pSSM, pThis->palette, 768);
2755
2756	SSMR3PutU32(pSSM, pThis->bank_offset);
2757	#ifdef CONFIG_BOCHS_VBE
2758	AssertCompile(RT_ELEMENTS(pThis->vbe_regs) < 256);
2759	SSMR3PutU8(pSSM, (uint8_t)RT_ELEMENTS(pThis->vbe_regs));
2760	SSMR3PutU16(pSSM, pThis->vbe_index);
2761	for(i = 0; i < (int)RT_ELEMENTS(pThis->vbe_regs); i++)
2762	SSMR3PutU16(pSSM, pThis->vbe_regs[i]);
2763	SSMR3PutU32(pSSM, pThis->vbe_start_addr);
2764	SSMR3PutU32(pSSM, pThis->vbe_line_offset);
2765	#else
2766	SSMR3PutU8(pSSM, 0);
2767	#endif
2768	}
2769
2770	static int vga_load(PSSMHANDLE pSSM, PVGASTATE pThis, int version_id)
2771	{
2772	int is_vbe, i;
2773	uint32_t u32Dummy;
2774	uint8_t u8;
2775
2776	SSMR3GetU32(pSSM, &pThis->latch);
2777	SSMR3GetU8(pSSM, &pThis->sr_index);
2778	SSMR3GetMem(pSSM, pThis->sr, 8);
2779	SSMR3GetU8(pSSM, &pThis->gr_index);
2780	SSMR3GetMem(pSSM, pThis->gr, 16);
2781	SSMR3GetU8(pSSM, &pThis->ar_index);
2782	SSMR3GetMem(pSSM, pThis->ar, 21);
2783	SSMR3GetU32(pSSM, (uint32_t *)&pThis->ar_flip_flop);
2784	SSMR3GetU8(pSSM, &pThis->cr_index);
2785	SSMR3GetMem(pSSM, pThis->cr, 256);
2786	SSMR3GetU8(pSSM, &pThis->msr);
2787	SSMR3GetU8(pSSM, &pThis->fcr);
2788	SSMR3GetU8(pSSM, &pThis->st00);
2789	SSMR3GetU8(pSSM, &pThis->st01);
2790
2791	SSMR3GetU8(pSSM, &pThis->dac_state);
2792	SSMR3GetU8(pSSM, &pThis->dac_sub_index);
2793	SSMR3GetU8(pSSM, &pThis->dac_read_index);
2794	SSMR3GetU8(pSSM, &pThis->dac_write_index);
2795	SSMR3GetMem(pSSM, pThis->dac_cache, 3);
2796	SSMR3GetMem(pSSM, pThis->palette, 768);
2797
2798	SSMR3GetU32(pSSM, (uint32_t *)&pThis->bank_offset);
2799	SSMR3GetU8(pSSM, &u8);
2800	is_vbe = !!u8;
2801	#ifdef CONFIG_BOCHS_VBE
2802	if (!is_vbe)
2803	{
2804	Log(("vga_load: !is_vbe !!\n"));
2805	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2806	}
2807
2808	if (u8 == 1)
2809	u8 = VBE_DISPI_INDEX_NB_SAVED; /* Used to save so many registers. */
2810	if (u8 > RT_ELEMENTS(pThis->vbe_regs))
2811	{
2812	Log(("vga_load: saved %d, expected %d!!\n", u8, RT_ELEMENTS(pThis->vbe_regs)));
2813	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2814	}
2815
2816	SSMR3GetU16(pSSM, &pThis->vbe_index);
2817	for(i = 0; i < (int)u8; i++)
2818	SSMR3GetU16(pSSM, &pThis->vbe_regs[i]);
2819	if (version_id <= VGA_SAVEDSTATE_VERSION_INV_VHEIGHT)
2820	recalculate_data(pThis); /* <- re-calculate the pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] since it might be invalid */
2821	SSMR3GetU32(pSSM, &pThis->vbe_start_addr);
2822	SSMR3GetU32(pSSM, &pThis->vbe_line_offset);
2823	if (version_id < 2)
2824	SSMR3GetU32(pSSM, &u32Dummy);
2825	pThis->vbe_bank_max = (pThis->vram_size >> 16) - 1;
2826	#else
2827	if (is_vbe)
2828	{
2829	Log(("vga_load: is_vbe !!\n"));
2830	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2831	}
2832	#endif
2833
2834	/* force refresh */
2835	pThis->graphic_mode = -1;
2836	return 0;
2837	}
2838
2839	/* see vgaR3Construct */
2840	static void vga_init_expand(void)
2841	{
2842	int i, j, v, b;
2843
2844	for(i = 0;i < 256; i++) {
2845	v = 0;
2846	for(j = 0; j < 8; j++) {
2847	v \|= ((i >> j) & 1) << (j * 4);
2848	}
2849	expand4[i] = v;
2850
2851	v = 0;
2852	for(j = 0; j < 4; j++) {
2853	v \|= ((i >> (2 * j)) & 3) << (j * 4);
2854	}
2855	expand2[i] = v;
2856	}
2857	for(i = 0; i < 16; i++) {
2858	v = 0;
2859	for(j = 0; j < 4; j++) {
2860	b = ((i >> j) & 1);
2861	v \|= b << (2 * j);
2862	v \|= b << (2 * j + 1);
2863	}
2864	expand4to8[i] = v;
2865	}
2866	}
2867
2868	#endif /* !IN_RING0 */
2869
2870
2871
2872	/* -=-=-=-=-=- all contexts -=-=-=-=-=- */
2873
2874	/**
2875	* @callback_method_impl{FNIOMIOPORTOUT,Generic VGA OUT dispatcher.}
2876	*/
2877	PDMBOTHCBDECL(int) vgaIOPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
2878	{
2879	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
2880	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
2881
2882	NOREF(pvUser);
2883	if (cb == 1)
2884	vga_ioport_write(pThis, Port, u32);
2885	else if (cb == 2)
2886	{
2887	vga_ioport_write(pThis, Port, u32 & 0xff);
2888	vga_ioport_write(pThis, Port + 1, u32 >> 8);
2889	}
2890	return VINF_SUCCESS;
2891	}
2892
2893
2894	/**
2895	* @callback_method_impl{FNIOMIOPORTOUT,Generic VGA IN dispatcher.}
2896	*/
2897	PDMBOTHCBDECL(int) vgaIOPortRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
2898	{
2899	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
2900	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
2901	NOREF(pvUser);
2902
2903	int rc = VINF_SUCCESS;
2904	if (cb == 1)
2905	*pu32 = vga_ioport_read(pThis, Port);
2906	else if (cb == 2)
2907	*pu32 = vga_ioport_read(pThis, Port)
2908	\| (vga_ioport_read(pThis, Port + 1) << 8);
2909	else
2910	rc = VERR_IOM_IOPORT_UNUSED;
2911	return rc;
2912	}
2913
2914
2915	/**
2916	* @callback_method_impl{FNIOMIOPORTOUT,VBE Data Port OUT handler.}
2917	*/
2918	PDMBOTHCBDECL(int) vgaIOPortWriteVBEData(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
2919	{
2920	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
2921	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
2922
2923	NOREF(pvUser);
2924
2925	#ifndef IN_RING3
2926	/*
2927	* This has to be done on the host in order to execute the connector callbacks.
2928	*/
2929	if ( pThis->vbe_index == VBE_DISPI_INDEX_ENABLE
2930	\|\| pThis->vbe_index == VBE_DISPI_INDEX_VBOX_VIDEO)
2931	{
2932	Log(("vgaIOPortWriteVBEData: VBE_DISPI_INDEX_ENABLE - Switching to host...\n"));
2933	return VINF_IOM_R3_IOPORT_WRITE;
2934	}
2935	#endif
2936	#ifdef VBE_BYTEWISE_IO
2937	if (cb == 1)
2938	{
2939	if (!pThis->fWriteVBEData)
2940	{
2941	if ( (pThis->vbe_index == VBE_DISPI_INDEX_ENABLE)
2942	&& (u32 & VBE_DISPI_ENABLED))
2943	{
2944	pThis->fWriteVBEData = false;
2945	return vbe_ioport_write_data(pThis, Port, u32 & 0xFF);
2946	}
2947
2948	pThis->cbWriteVBEData = u32 & 0xFF;
2949	pThis->fWriteVBEData = true;
2950	return VINF_SUCCESS;
2951	}
2952
2953	u32 = (pThis->cbWriteVBEData << 8) \| (u32 & 0xFF);
2954	pThis->fWriteVBEData = false;
2955	cb = 2;
2956	}
2957	#endif
2958	if (cb == 2 \|\| cb == 4)
2959	{
2960	//#ifdef IN_RC
2961	// /*
2962	// * The VBE_DISPI_INDEX_ENABLE memsets the entire frame buffer.
2963	// * Since we're not mapping the entire framebuffer any longer that
2964	// * has to be done on the host.
2965	// */
2966	// if ( (pThis->vbe_index == VBE_DISPI_INDEX_ENABLE)
2967	// && (u32 & VBE_DISPI_ENABLED))
2968	// {
2969	// Log(("vgaIOPortWriteVBEData: VBE_DISPI_INDEX_ENABLE & VBE_DISPI_ENABLED - Switching to host...\n"));
2970	// return VINF_IOM_R3_IOPORT_WRITE;
2971	// }
2972	//#endif
2973	return vbe_ioport_write_data(pThis, Port, u32);
2974	}
2975	AssertMsgFailed(("vgaIOPortWriteVBEData: Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
2976
2977	return VINF_SUCCESS;
2978	}
2979
2980
2981	/**
2982	* @callback_method_impl{FNIOMIOPORTOUT,VBE Index Port OUT handler.}
2983	*/
2984	PDMBOTHCBDECL(int) vgaIOPortWriteVBEIndex(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
2985	{
2986	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE); NOREF(pvUser);
2987	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
2988
2989	#ifdef VBE_BYTEWISE_IO
2990	if (cb == 1)
2991	{
2992	if (!pThis->fWriteVBEIndex)
2993	{
2994	pThis->cbWriteVBEIndex = u32 & 0x00FF;
2995	pThis->fWriteVBEIndex = true;
2996	return VINF_SUCCESS;
2997	}
2998	pThis->fWriteVBEIndex = false;
2999	vbe_ioport_write_index(pThis, Port, (pThis->cbWriteVBEIndex << 8) \| (u32 & 0x00FF));
3000	return VINF_SUCCESS;
3001	}
3002	#endif
3003
3004	if (cb == 2)
3005	vbe_ioport_write_index(pThis, Port, u32);
3006	else
3007	AssertMsgFailed(("vgaIOPortWriteVBEIndex: Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
3008	return VINF_SUCCESS;
3009	}
3010
3011
3012	/**
3013	* @callback_method_impl{FNIOMIOPORTOUT,VBE Data Port IN handler.}
3014	*/
3015	PDMBOTHCBDECL(int) vgaIOPortReadVBEData(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
3016	{
3017	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE); NOREF(pvUser);
3018	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3019
3020	#ifdef VBE_BYTEWISE_IO
3021	if (cb == 1)
3022	{
3023	if (!pThis->fReadVBEData)
3024	{
3025	*pu32 = (vbe_ioport_read_data(pThis, Port) >> 8) & 0xFF;
3026	pThis->fReadVBEData = true;
3027	return VINF_SUCCESS;
3028	}
3029	*pu32 = vbe_ioport_read_data(pThis, Port) & 0xFF;
3030	pThis->fReadVBEData = false;
3031	return VINF_SUCCESS;
3032	}
3033	#endif
3034	if (cb == 2)
3035	{
3036	*pu32 = vbe_ioport_read_data(pThis, Port);
3037	return VINF_SUCCESS;
3038	}
3039	if (cb == 4)
3040	{
3041	if (pThis->vbe_regs[VBE_DISPI_INDEX_ID] == VBE_DISPI_ID_CFG)
3042	pu32 = vbe_ioport_read_data(pThis, Port); / New interface. */
3043	else
3044	pu32 = pThis->vram_size; / Quick hack for getting the vram size. */
3045	return VINF_SUCCESS;
3046	}
3047	AssertMsgFailed(("vgaIOPortReadVBEData: Port=%#x cb=%d\n", Port, cb));
3048	return VERR_IOM_IOPORT_UNUSED;
3049	}
3050
3051
3052	/**
3053	* @callback_method_impl{FNIOMIOPORTOUT,VBE Index Port IN handler.}
3054	*/
3055	PDMBOTHCBDECL(int) vgaIOPortReadVBEIndex(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
3056	{
3057	NOREF(pvUser);
3058	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
3059	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3060
3061	#ifdef VBE_BYTEWISE_IO
3062	if (cb == 1)
3063	{
3064	if (!pThis->fReadVBEIndex)
3065	{
3066	*pu32 = (vbe_ioport_read_index(pThis, Port) >> 8) & 0xFF;
3067	pThis->fReadVBEIndex = true;
3068	return VINF_SUCCESS;
3069	}
3070	*pu32 = vbe_ioport_read_index(pThis, Port) & 0xFF;
3071	pThis->fReadVBEIndex = false;
3072	return VINF_SUCCESS;
3073	}
3074	#endif
3075	if (cb == 2)
3076	{
3077	*pu32 = vbe_ioport_read_index(pThis, Port);
3078	return VINF_SUCCESS;
3079	}
3080	AssertMsgFailed(("vgaIOPortReadVBEIndex: Port=%#x cb=%d\n", Port, cb));
3081	return VERR_IOM_IOPORT_UNUSED;
3082	}
3083
3084	#ifdef VBOX_WITH_HGSMI
3085	# ifdef IN_RING3
3086	/**
3087	* @callback_method_impl{FNIOMIOPORTOUT,HGSMI OUT handler.}
3088	*/
3089	static DECLCALLBACK(int) vgaR3IOPortHGSMIWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
3090	{
3091	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
3092	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3093	LogFlowFunc(("Port 0x%x, u32 0x%x, cb %d\n", Port, u32, cb));
3094
3095
3096	NOREF(pvUser);
3097
3098	if (cb == 4)
3099	{
3100	switch (Port)
3101	{
3102	case VGA_PORT_HGSMI_HOST: /* Host */
3103	{
3104	# if defined(VBOX_WITH_VIDEOHWACCEL) \|\| defined(VBOX_WITH_VDMA) \|\| defined(VBOX_WITH_WDDM)
3105	if (u32 == HGSMIOFFSET_VOID)
3106	{
3107	PDMCritSectEnter(&pThis->CritSectIRQ, VERR_SEM_BUSY);
3108
3109	if (pThis->fu32PendingGuestFlags == 0)
3110	{
3111	PDMDevHlpPCISetIrqNoWait(pDevIns, 0, PDM_IRQ_LEVEL_LOW);
3112	HGSMIClearHostGuestFlags(pThis->pHGSMI,
3113	HGSMIHOSTFLAGS_IRQ
3114	# ifdef VBOX_VDMA_WITH_WATCHDOG
3115	\| HGSMIHOSTFLAGS_WATCHDOG
3116	# endif
3117	\| HGSMIHOSTFLAGS_VSYNC
3118	\| HGSMIHOSTFLAGS_HOTPLUG
3119	\| HGSMIHOSTFLAGS_CURSOR_CAPABILITIES
3120	);
3121	}
3122	else
3123	{
3124	HGSMISetHostGuestFlags(pThis->pHGSMI, HGSMIHOSTFLAGS_IRQ \| pThis->fu32PendingGuestFlags);
3125	pThis->fu32PendingGuestFlags = 0;
3126	/* Keep the IRQ unchanged. */
3127	}
3128
3129	PDMCritSectLeave(&pThis->CritSectIRQ);
3130	}
3131	else
3132	# endif
3133	{
3134	HGSMIHostWrite(pThis->pHGSMI, u32);
3135	}
3136	break;
3137	}
3138
3139	case VGA_PORT_HGSMI_GUEST: /* Guest */
3140	HGSMIGuestWrite(pThis->pHGSMI, u32);
3141	break;
3142
3143	default:
3144	# ifdef DEBUG_sunlover
3145	AssertMsgFailed(("vgaR3IOPortHGSMIWrite: Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
3146	# endif
3147	break;
3148	}
3149	}
3150	else
3151	{
3152	# ifdef DEBUG_sunlover
3153	AssertMsgFailed(("vgaR3IOPortHGSMIWrite: Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
3154	# endif
3155	}
3156
3157	return VINF_SUCCESS;
3158	}
3159
3160
3161	/**
3162	* @callback_method_impl{FNIOMIOPORTOUT,HGSMI IN handler.}
3163	*/
3164	static DECLCALLBACK(int) vgaR3IOPortHGSMIRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
3165	{
3166	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
3167	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3168	LogFlowFunc(("Port 0x%x, cb %d\n", Port, cb));
3169
3170	NOREF(pvUser);
3171
3172	int rc = VINF_SUCCESS;
3173	if (cb == 4)
3174	{
3175	switch (Port)
3176	{
3177	case VGA_PORT_HGSMI_HOST: /* Host */
3178	*pu32 = HGSMIHostRead(pThis->pHGSMI);
3179	break;
3180	case VGA_PORT_HGSMI_GUEST: /* Guest */
3181	*pu32 = HGSMIGuestRead(pThis->pHGSMI);
3182	break;
3183	default:
3184	# ifdef DEBUG_sunlover
3185	AssertMsgFailed(("vgaR3IOPortHGSMIRead: Port=%#x cb=%d\n", Port, cb));
3186	# endif
3187	rc = VERR_IOM_IOPORT_UNUSED;
3188	break;
3189	}
3190	}
3191	else
3192	{
3193	# ifdef DEBUG_sunlover
3194	Log(("vgaR3IOPortHGSMIRead: Port=%#x cb=%d\n", Port, cb));
3195	# endif
3196	rc = VERR_IOM_IOPORT_UNUSED;
3197	}
3198
3199	return rc;
3200	}
3201	# endif /* IN_RING3 */
3202	#endif /* VBOX_WITH_HGSMI */
3203
3204
3205
3206
3207	/* -=-=-=-=-=- Guest Context -=-=-=-=-=- */
3208
3209	/**
3210	* @internal. For use inside VGAGCMemoryFillWrite only.
3211	* Macro for apply logical operation and bit mask.
3212	*/
3213	#define APPLY_LOGICAL_AND_MASK(pThis, val, bit_mask) \
3214	/* apply logical operation */ \
3215	switch (pThis->gr[3] >> 3) \
3216	{ \
3217	case 0: \
3218	default: \
3219	/* nothing to do */ \
3220	break; \
3221	case 1: \
3222	/* and */ \
3223	val &= pThis->latch; \
3224	break; \
3225	case 2: \
3226	/* or */ \
3227	val \|= pThis->latch; \
3228	break; \
3229	case 3: \
3230	/* xor */ \
3231	val ^= pThis->latch; \
3232	break; \
3233	} \
3234	/* apply bit mask */ \
3235	val = (val & bit_mask) \| (pThis->latch & ~bit_mask)
3236
3237	/**
3238	* Legacy VGA memory (0xa0000 - 0xbffff) write hook, to be called from IOM and from the inside of VGADeviceGC.cpp.
3239	* This is the advanced version of vga_mem_writeb function.
3240	*
3241	* @returns VBox status code.
3242	* @param pThis VGA device structure
3243	* @param pvUser User argument - ignored.
3244	* @param GCPhysAddr Physical address of memory to write.
3245	* @param u32Item Data to write, up to 4 bytes.
3246	* @param cbItem Size of data Item, only 1/2/4 bytes is allowed for now.
3247	* @param cItems Number of data items to write.
3248	*/
3249	static int vgaInternalMMIOFill(PVGASTATE pThis, void *pvUser, RTGCPHYS GCPhysAddr, uint32_t u32Item, unsigned cbItem, unsigned cItems)
3250	{
3251	uint32_t b;
3252	uint32_t write_mask, bit_mask, set_mask;
3253	uint32_t aVal[4];
3254	unsigned i;
3255	NOREF(pvUser);
3256
3257	for (i = 0; i < cbItem; i++)
3258	{
3259	aVal[i] = u32Item & 0xff;
3260	u32Item >>= 8;
3261	}
3262
3263	/* convert to VGA memory offset */
3264	/// @todo add check for the end of region
3265	GCPhysAddr &= 0x1ffff;
3266	switch((pThis->gr[6] >> 2) & 3) {
3267	case 0:
3268	break;
3269	case 1:
3270	if (GCPhysAddr >= 0x10000)
3271	return VINF_SUCCESS;
3272	GCPhysAddr += pThis->bank_offset;
3273	break;
3274	case 2:
3275	GCPhysAddr -= 0x10000;
3276	if (GCPhysAddr >= 0x8000)
3277	return VINF_SUCCESS;
3278	break;
3279	default:
3280	case 3:
3281	GCPhysAddr -= 0x18000;
3282	if (GCPhysAddr >= 0x8000)
3283	return VINF_SUCCESS;
3284	break;
3285	}
3286
3287	if (pThis->sr[4] & 0x08) {
3288	/* chain 4 mode : simplest access */
3289	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, GCPhysAddr + cItems * cbItem - 1);
3290
3291	while (cItems-- > 0)
3292	for (i = 0; i < cbItem; i++)
3293	{
3294	if (pThis->sr[2] & (1 << (GCPhysAddr & 3)))
3295	{
3296	pThis->CTX_SUFF(vram_ptr)[GCPhysAddr] = aVal[i];
3297	vga_set_dirty(pThis, GCPhysAddr);
3298	}
3299	GCPhysAddr++;
3300	}
3301	} else if (pThis->gr[5] & 0x10) {
3302	/* odd/even mode (aka text mode mapping) */
3303	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, (GCPhysAddr + cItems * cbItem) * 4 - 1);
3304	while (cItems-- > 0)
3305	for (i = 0; i < cbItem; i++)
3306	{
3307	unsigned plane = (pThis->gr[4] & 2) \| (GCPhysAddr & 1);
3308	if (pThis->sr[2] & (1 << plane)) {
3309	RTGCPHYS PhysAddr2 = ((GCPhysAddr & ~1) * 4) \| plane;
3310	pThis->CTX_SUFF(vram_ptr)[PhysAddr2] = aVal[i];
3311	vga_set_dirty(pThis, PhysAddr2);
3312	}
3313	GCPhysAddr++;
3314	}
3315	} else {
3316	/* standard VGA latched access */
3317	VERIFY_VRAM_WRITE_OFF_RETURN(pThis, (GCPhysAddr + cItems * cbItem) * 4 - 1);
3318
3319	switch(pThis->gr[5] & 3) {
3320	default:
3321	case 0:
3322	/* rotate */
3323	b = pThis->gr[3] & 7;
3324	bit_mask = pThis->gr[8];
3325	bit_mask \|= bit_mask << 8;
3326	bit_mask \|= bit_mask << 16;
3327	set_mask = mask16[pThis->gr[1]];
3328
3329	for (i = 0; i < cbItem; i++)
3330	{
3331	aVal[i] = ((aVal[i] >> b) \| (aVal[i] << (8 - b))) & 0xff;
3332	aVal[i] \|= aVal[i] << 8;
3333	aVal[i] \|= aVal[i] << 16;
3334
3335	/* apply set/reset mask */
3336	aVal[i] = (aVal[i] & ~set_mask) \| (mask16[pThis->gr[0]] & set_mask);
3337
3338	APPLY_LOGICAL_AND_MASK(pThis, aVal[i], bit_mask);
3339	}
3340	break;
3341	case 1:
3342	for (i = 0; i < cbItem; i++)
3343	aVal[i] = pThis->latch;
3344	break;
3345	case 2:
3346	bit_mask = pThis->gr[8];
3347	bit_mask \|= bit_mask << 8;
3348	bit_mask \|= bit_mask << 16;
3349	for (i = 0; i < cbItem; i++)
3350	{
3351	aVal[i] = mask16[aVal[i] & 0x0f];
3352
3353	APPLY_LOGICAL_AND_MASK(pThis, aVal[i], bit_mask);
3354	}
3355	break;
3356	case 3:
3357	/* rotate */
3358	b = pThis->gr[3] & 7;
3359
3360	for (i = 0; i < cbItem; i++)
3361	{
3362	aVal[i] = (aVal[i] >> b) \| (aVal[i] << (8 - b));
3363	bit_mask = pThis->gr[8] & aVal[i];
3364	bit_mask \|= bit_mask << 8;
3365	bit_mask \|= bit_mask << 16;
3366	aVal[i] = mask16[pThis->gr[0]];
3367
3368	APPLY_LOGICAL_AND_MASK(pThis, aVal[i], bit_mask);
3369	}
3370	break;
3371	}
3372
3373	/* mask data according to sr[2] */
3374	write_mask = mask16[pThis->sr[2]];
3375
3376	/* actually write data */
3377	if (cbItem == 1)
3378	{
3379	/* The most frequently case is 1 byte I/O. */
3380	while (cItems-- > 0)
3381	{
3382	((uint32_t )pThis->CTX_SUFF(vram_ptr))[GCPhysAddr] = (((uint32_t )pThis->CTX_SUFF(vram_ptr))[GCPhysAddr] & ~write_mask) \| (aVal[0] & write_mask);
3383	vga_set_dirty(pThis, GCPhysAddr * 4);
3384	GCPhysAddr++;
3385	}
3386	}
3387	else if (cbItem == 2)
3388	{
3389	/* The second case is 2 bytes I/O. */
3390	while (cItems-- > 0)
3391	{
3392	((uint32_t )pThis->CTX_SUFF(vram_ptr))[GCPhysAddr] = (((uint32_t )pThis->CTX_SUFF(vram_ptr))[GCPhysAddr] & ~write_mask) \| (aVal[0] & write_mask);
3393	vga_set_dirty(pThis, GCPhysAddr * 4);
3394	GCPhysAddr++;
3395
3396	((uint32_t )pThis->CTX_SUFF(vram_ptr))[GCPhysAddr] = (((uint32_t )pThis->CTX_SUFF(vram_ptr))[GCPhysAddr] & ~write_mask) \| (aVal[1] & write_mask);
3397	vga_set_dirty(pThis, GCPhysAddr * 4);
3398	GCPhysAddr++;
3399	}
3400	}
3401	else
3402	{
3403	/* And the rest is 4 bytes. */
3404	Assert(cbItem == 4);
3405	while (cItems-- > 0)
3406	for (i = 0; i < cbItem; i++)
3407	{
3408	((uint32_t )pThis->CTX_SUFF(vram_ptr))[GCPhysAddr] = (((uint32_t )pThis->CTX_SUFF(vram_ptr))[GCPhysAddr] & ~write_mask) \| (aVal[i] & write_mask);
3409	vga_set_dirty(pThis, GCPhysAddr * 4);
3410	GCPhysAddr++;
3411	}
3412	}
3413	}
3414	return VINF_SUCCESS;
3415	}
3416
3417
3418	/**
3419	* @callback_method_impl{FNIOMMMIOFILL,
3420	* Legacy VGA memory (0xa0000 - 0xbffff) write hook\, to be called from IOM and
3421	* from the inside of VGADeviceGC.cpp. This is the advanced version of
3422	* vga_mem_writeb function.}
3423	*/
3424	PDMBOTHCBDECL(int) vgaMMIOFill(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, uint32_t u32Item, unsigned cbItem, unsigned cItems)
3425	{
3426	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
3427	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3428
3429	return vgaInternalMMIOFill(pThis, pvUser, GCPhysAddr, u32Item, cbItem, cItems);
3430	}
3431	#undef APPLY_LOGICAL_AND_MASK
3432
3433
3434	/**
3435	* @callback_method_impl{FNIOMMMIOREAD, Legacy VGA memory (0xa0000 - 0xbffff)
3436	* read hook\, to be called from IOM.}
3437	*/
3438	PDMBOTHCBDECL(int) vgaMMIORead(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb)
3439	{
3440	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
3441	STAM_PROFILE_START(&pThis->CTX_MID_Z(Stat,MemoryRead), a);
3442	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3443	NOREF(pvUser);
3444
3445	int rc = VINF_SUCCESS;
3446	switch (cb)
3447	{
3448	case 1:
3449	(uint8_t )pv = vga_mem_readb(pThis, GCPhysAddr, &rc);
3450	break;
3451	case 2:
3452	(uint16_t )pv = vga_mem_readb(pThis, GCPhysAddr, &rc)
3453	\| (vga_mem_readb(pThis, GCPhysAddr + 1, &rc) << 8);
3454	break;
3455	case 4:
3456	(uint32_t )pv = vga_mem_readb(pThis, GCPhysAddr, &rc)
3457	\| (vga_mem_readb(pThis, GCPhysAddr + 1, &rc) << 8)
3458	\| (vga_mem_readb(pThis, GCPhysAddr + 2, &rc) << 16)
3459	\| (vga_mem_readb(pThis, GCPhysAddr + 3, &rc) << 24);
3460	break;
3461
3462	case 8:
3463	(uint64_t )pv = (uint64_t)vga_mem_readb(pThis, GCPhysAddr, &rc)
3464	\| ((uint64_t)vga_mem_readb(pThis, GCPhysAddr + 1, &rc) << 8)
3465	\| ((uint64_t)vga_mem_readb(pThis, GCPhysAddr + 2, &rc) << 16)
3466	\| ((uint64_t)vga_mem_readb(pThis, GCPhysAddr + 3, &rc) << 24)
3467	\| ((uint64_t)vga_mem_readb(pThis, GCPhysAddr + 4, &rc) << 32)
3468	\| ((uint64_t)vga_mem_readb(pThis, GCPhysAddr + 5, &rc) << 40)
3469	\| ((uint64_t)vga_mem_readb(pThis, GCPhysAddr + 6, &rc) << 48)
3470	\| ((uint64_t)vga_mem_readb(pThis, GCPhysAddr + 7, &rc) << 56);
3471	break;
3472
3473	default:
3474	{
3475	uint8_t pbData = (uint8_t )pv;
3476	while (cb-- > 0)
3477	{
3478	*pbData++ = vga_mem_readb(pThis, GCPhysAddr++, &rc);
3479	if (RT_UNLIKELY(rc != VINF_SUCCESS))
3480	break;
3481	}
3482	}
3483	}
3484
3485	STAM_PROFILE_STOP(&pThis->CTX_MID_Z(Stat,MemoryRead), a);
3486	return rc;
3487	}
3488
3489	/**
3490	* @callback_method_impl{FNIOMMMIOWRITE, Legacy VGA memory (0xa0000 - 0xbffff)
3491	* write hook\, to be called from IOM.}
3492	*/
3493	PDMBOTHCBDECL(int) vgaMMIOWrite(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void const pv, unsigned cb)
3494	{
3495	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
3496	uint8_t const pbSrc = (uint8_t const )pv;
3497	NOREF(pvUser);
3498	STAM_PROFILE_START(&pThis->CTX_MID_Z(Stat,MemoryWrite), a);
3499	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3500
3501	int rc;
3502	switch (cb)
3503	{
3504	case 1:
3505	rc = vga_mem_writeb(pThis, GCPhysAddr, *pbSrc);
3506	break;
3507	#if 1
3508	case 2:
3509	rc = vga_mem_writeb(pThis, GCPhysAddr + 0, pbSrc[0]);
3510	if (RT_LIKELY(rc == VINF_SUCCESS))
3511	rc = vga_mem_writeb(pThis, GCPhysAddr + 1, pbSrc[1]);
3512	break;
3513	case 4:
3514	rc = vga_mem_writeb(pThis, GCPhysAddr + 0, pbSrc[0]);
3515	if (RT_LIKELY(rc == VINF_SUCCESS))
3516	rc = vga_mem_writeb(pThis, GCPhysAddr + 1, pbSrc[1]);
3517	if (RT_LIKELY(rc == VINF_SUCCESS))
3518	rc = vga_mem_writeb(pThis, GCPhysAddr + 2, pbSrc[2]);
3519	if (RT_LIKELY(rc == VINF_SUCCESS))
3520	rc = vga_mem_writeb(pThis, GCPhysAddr + 3, pbSrc[3]);
3521	break;
3522	case 8:
3523	rc = vga_mem_writeb(pThis, GCPhysAddr + 0, pbSrc[0]);
3524	if (RT_LIKELY(rc == VINF_SUCCESS))
3525	rc = vga_mem_writeb(pThis, GCPhysAddr + 1, pbSrc[1]);
3526	if (RT_LIKELY(rc == VINF_SUCCESS))
3527	rc = vga_mem_writeb(pThis, GCPhysAddr + 2, pbSrc[2]);
3528	if (RT_LIKELY(rc == VINF_SUCCESS))
3529	rc = vga_mem_writeb(pThis, GCPhysAddr + 3, pbSrc[3]);
3530	if (RT_LIKELY(rc == VINF_SUCCESS))
3531	rc = vga_mem_writeb(pThis, GCPhysAddr + 4, pbSrc[4]);
3532	if (RT_LIKELY(rc == VINF_SUCCESS))
3533	rc = vga_mem_writeb(pThis, GCPhysAddr + 5, pbSrc[5]);
3534	if (RT_LIKELY(rc == VINF_SUCCESS))
3535	rc = vga_mem_writeb(pThis, GCPhysAddr + 6, pbSrc[6]);
3536	if (RT_LIKELY(rc == VINF_SUCCESS))
3537	rc = vga_mem_writeb(pThis, GCPhysAddr + 7, pbSrc[7]);
3538	break;
3539	#else
3540	case 2:
3541	rc = vgaMMIOFill(pDevIns, GCPhysAddr, (uint16_t )pv, 2, 1);
3542	break;
3543	case 4:
3544	rc = vgaMMIOFill(pDevIns, GCPhysAddr, (uint32_t )pv, 4, 1);
3545	break;
3546	case 8:
3547	rc = vgaMMIOFill(pDevIns, GCPhysAddr, (uint64_t )pv, 8, 1);
3548	break;
3549	#endif
3550	default:
3551	rc = VINF_SUCCESS;
3552	while (cb-- > 0 && rc == VINF_SUCCESS)
3553	rc = vga_mem_writeb(pThis, GCPhysAddr++, *pbSrc++);
3554	break;
3555
3556	}
3557	STAM_PROFILE_STOP(&pThis->CTX_MID_Z(Stat,MemoryWrite), a);
3558	return rc;
3559	}
3560
3561
3562	/**
3563	* Handle LFB access.
3564	* @returns VBox status code.
3565	* @param pVM VM handle.
3566	* @param pThis VGA device instance data.
3567	* @param GCPhys The access physical address.
3568	* @param GCPtr The access virtual address (only GC).
3569	*/
3570	static int vgaLFBAccess(PVM pVM, PVGASTATE pThis, RTGCPHYS GCPhys, RTGCPTR GCPtr)
3571	{
3572	int rc = PDMCritSectEnter(&pThis->CritSect, VINF_EM_RAW_EMULATE_INSTR);
3573	if (rc != VINF_SUCCESS)
3574	return rc;
3575
3576	/*
3577	* Set page dirty bit.
3578	*/
3579	vga_set_dirty(pThis, GCPhys - pThis->GCPhysVRAM);
3580	pThis->fLFBUpdated = true;
3581
3582	/*
3583	* Turn of the write handler for this particular page and make it R/W.
3584	* Then return telling the caller to restart the guest instruction.
3585	* ASSUME: the guest always maps video memory RW.
3586	*/
3587	rc = PGMHandlerPhysicalPageTempOff(pVM, pThis->GCPhysVRAM, GCPhys);
3588	if (RT_SUCCESS(rc))
3589	{
3590	#ifndef IN_RING3
3591	rc = PGMShwMakePageWritable(PDMDevHlpGetVMCPU(pThis->CTX_SUFF(pDevIns)), GCPtr,
3592	PGM_MK_PG_IS_MMIO2 \| PGM_MK_PG_IS_WRITE_FAULT);
3593	PDMCritSectLeave(&pThis->CritSect);
3594	AssertMsgReturn( rc == VINF_SUCCESS
3595	/* In the SMP case the page table might be removed while we wait for the PGM lock in the trap handler. */
3596	\|\| rc == VERR_PAGE_TABLE_NOT_PRESENT
3597	\|\| rc == VERR_PAGE_NOT_PRESENT,
3598	("PGMShwModifyPage -> GCPtr=%RGv rc=%d\n", GCPtr, rc),
3599	rc);
3600	#else /* IN_RING3 : We don't have any virtual page address of the access here. */
3601	PDMCritSectLeave(&pThis->CritSect);
3602	Assert(GCPtr == 0);
3603	RT_NOREF1(GCPtr);
3604	#endif
3605	return VINF_SUCCESS;
3606	}
3607
3608	PDMCritSectLeave(&pThis->CritSect);
3609	AssertMsgFailed(("PGMHandlerPhysicalPageTempOff -> rc=%d\n", rc));
3610	return rc;
3611	}
3612
3613
3614	#ifndef IN_RING3
3615	/**
3616	* @callback_method_impl{FNPGMRCPHYSHANDLER, \#PF Handler for VBE LFB access.}
3617	*/
3618	PDMBOTHCBDECL(VBOXSTRICTRC) vgaLbfAccessPfHandler(PVM pVM, PVMCPU pVCpu, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame,
3619	RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser)
3620	{
3621	PVGASTATE pThis = (PVGASTATE)pvUser;
3622	AssertPtr(pThis);
3623	Assert(GCPhysFault >= pThis->GCPhysVRAM);
3624	AssertMsg(uErrorCode & X86_TRAP_PF_RW, ("uErrorCode=%#x\n", uErrorCode));
3625	RT_NOREF3(pVCpu, pRegFrame, uErrorCode);
3626
3627	return vgaLFBAccess(pVM, pThis, GCPhysFault, pvFault);
3628	}
3629	#endif /* !IN_RING3 */
3630
3631
3632	/**
3633	* @callback_method_impl{FNPGMPHYSHANDLER,
3634	* VBE LFB write access handler for the dirty tracking.}
3635	*/
3636	PGM_ALL_CB_DECL(VBOXSTRICTRC) vgaLFBAccessHandler(PVM pVM, PVMCPU pVCpu, RTGCPHYS GCPhys, void pvPhys, void pvBuf, size_t cbBuf,
3637	PGMACCESSTYPE enmAccessType, PGMACCESSORIGIN enmOrigin, void *pvUser)
3638	{
3639	PVGASTATE pThis = (PVGASTATE)pvUser;
3640	int rc;
3641	Assert(pThis);
3642	Assert(GCPhys >= pThis->GCPhysVRAM);
3643	NOREF(pVCpu); NOREF(pvPhys); NOREF(pvBuf); NOREF(cbBuf); NOREF(enmAccessType); NOREF(enmOrigin);
3644
3645	rc = vgaLFBAccess(pVM, pThis, GCPhys, 0);
3646	if (RT_SUCCESS(rc))
3647	return VINF_PGM_HANDLER_DO_DEFAULT;
3648	AssertMsg(rc <= VINF_SUCCESS, ("rc=%Rrc\n", rc));
3649	return rc;
3650	}
3651
3652
3653	/* -=-=-=-=-=- All rings: VGA BIOS I/Os -=-=-=-=-=- */
3654
3655	/**
3656	* @callback_method_impl{FNIOMIOPORTIN,
3657	* Port I/O Handler for VGA BIOS IN operations.}
3658	*/
3659	PDMBOTHCBDECL(int) vgaIOPortReadBIOS(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
3660	{
3661	NOREF(pDevIns);
3662	NOREF(pvUser);
3663	NOREF(Port);
3664	NOREF(pu32);
3665	NOREF(cb);
3666	return VERR_IOM_IOPORT_UNUSED;
3667	}
3668
3669	/**
3670	* @callback_method_impl{FNIOMIOPORTOUT,
3671	* Port I/O Handler for VGA BIOS IN operations.}
3672	*/
3673	PDMBOTHCBDECL(int) vgaIOPortWriteBIOS(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
3674	{
3675	static int lastWasNotNewline = 0; /* We are only called in a single-threaded way */
3676	RT_NOREF2(pDevIns, pvUser);
3677	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3678
3679	/*
3680	* VGA BIOS char printing.
3681	*/
3682	if ( cb == 1
3683	&& Port == VBE_PRINTF_PORT)
3684	{
3685	#if 0
3686	switch (u32)
3687	{
3688	case '\r': Log(("vgabios: <return>\n")); break;
3689	case '\n': Log(("vgabios: <newline>\n")); break;
3690	case '\t': Log(("vgabios: <tab>\n")); break;
3691	default:
3692	Log(("vgabios: %c\n", u32));
3693	}
3694	#else
3695	if (lastWasNotNewline == 0)
3696	Log(("vgabios: "));
3697	if (u32 != '\r') /* return - is only sent in conjunction with '\n' */
3698	Log(("%c", u32));
3699	if (u32 == '\n')
3700	lastWasNotNewline = 0;
3701	else
3702	lastWasNotNewline = 1;
3703	#endif
3704	return VINF_SUCCESS;
3705	}
3706
3707	/* not in use. */
3708	return VERR_IOM_IOPORT_UNUSED;
3709	}
3710
3711
3712	/* -=-=-=-=-=- Ring 3 -=-=-=-=-=- */
3713
3714	#ifdef IN_RING3
3715
3716	/**
3717	* @callback_method_impl{FNIOMIOPORTOUT,
3718	* Port I/O Handler for VBE Extra OUT operations.}
3719	*/
3720	PDMBOTHCBDECL(int) vbeIOPortWriteVBEExtra(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
3721	{
3722	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
3723	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3724	NOREF(pvUser); NOREF(Port);
3725
3726	if (cb == 2)
3727	{
3728	Log(("vbeIOPortWriteVBEExtra: addr=%#RX32\n", u32));
3729	pThis->u16VBEExtraAddress = u32;
3730	}
3731	else
3732	Log(("vbeIOPortWriteVBEExtra: Ignoring invalid cb=%d writes to the VBE Extra port!!!\n", cb));
3733
3734	return VINF_SUCCESS;
3735	}
3736
3737
3738	/**
3739	* @callback_method_impl{FNIOMIOPORTIN,
3740	* Port I/O Handler for VBE Extra IN operations.}
3741	*/
3742	PDMBOTHCBDECL(int) vbeIOPortReadVBEExtra(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
3743	{
3744	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
3745	NOREF(pvUser); NOREF(Port);
3746	Assert(PDMCritSectIsOwner(pDevIns->CTX_SUFF(pCritSectRo)));
3747
3748	int rc = VINF_SUCCESS;
3749	if (pThis->u16VBEExtraAddress == 0xffff)
3750	{
3751	Log(("vbeIOPortReadVBEExtra: Requested number of 64k video banks\n"));
3752	*pu32 = pThis->vram_size / _64K;
3753	}
3754	else if ( pThis->u16VBEExtraAddress >= pThis->cbVBEExtraData
3755	\|\| pThis->u16VBEExtraAddress + cb > pThis->cbVBEExtraData)
3756	{
3757	*pu32 = 0;
3758	Log(("vbeIOPortReadVBEExtra: Requested address is out of VBE data!!! Address=%#x(%d) cbVBEExtraData=%#x(%d)\n",
3759	pThis->u16VBEExtraAddress, pThis->u16VBEExtraAddress, pThis->cbVBEExtraData, pThis->cbVBEExtraData));
3760	}
3761	else
3762	{
3763	RT_UNTRUSTED_VALIDATED_FENCE();
3764	if (cb == 1)
3765	{
3766	*pu32 = pThis->pbVBEExtraData[pThis->u16VBEExtraAddress] & 0xFF;
3767
3768	Log(("vbeIOPortReadVBEExtra: cb=%#x %.*Rhxs\n", cb, cb, pu32));
3769	}
3770	else if (cb == 2)
3771	{
3772	*pu32 = pThis->pbVBEExtraData[pThis->u16VBEExtraAddress]
3773	\| (uint32_t)pThis->pbVBEExtraData[pThis->u16VBEExtraAddress + 1] << 8;
3774
3775	Log(("vbeIOPortReadVBEExtra: cb=%#x %.*Rhxs\n", cb, cb, pu32));
3776	}
3777	else
3778	{
3779	Log(("vbeIOPortReadVBEExtra: Invalid cb=%d read from the VBE Extra port!!!\n", cb));
3780	rc = VERR_IOM_IOPORT_UNUSED;
3781	}
3782	}
3783
3784	return rc;
3785	}
3786
3787
3788	/**
3789	* Parse the logo bitmap data at init time.
3790	*
3791	* @returns VBox status code.
3792	*
3793	* @param pThis The VGA instance data.
3794	*/
3795	static int vbeParseBitmap(PVGASTATE pThis)
3796	{
3797	uint16_t i;
3798	PBMPINFO bmpInfo;
3799	POS2HDR pOs2Hdr;
3800	POS22HDR pOs22Hdr;
3801	PWINHDR pWinHdr;
3802
3803	/*
3804	* Get bitmap header data
3805	*/
3806	bmpInfo = (PBMPINFO)(pThis->pbLogo + sizeof(LOGOHDR));
3807	pWinHdr = (PWINHDR)(pThis->pbLogo + sizeof(LOGOHDR) + sizeof(BMPINFO));
3808
3809	if (bmpInfo->Type == BMP_ID)
3810	{
3811	switch (pWinHdr->Size)
3812	{
3813	case BMP_HEADER_OS21:
3814	pOs2Hdr = (POS2HDR)pWinHdr;
3815	pThis->cxLogo = pOs2Hdr->Width;
3816	pThis->cyLogo = pOs2Hdr->Height;
3817	pThis->cLogoPlanes = pOs2Hdr->Planes;
3818	pThis->cLogoBits = pOs2Hdr->BitCount;
3819	pThis->LogoCompression = BMP_COMPRESS_NONE;
3820	pThis->cLogoUsedColors = 0;
3821	break;
3822
3823	case BMP_HEADER_OS22:
3824	pOs22Hdr = (POS22HDR)pWinHdr;
3825	pThis->cxLogo = pOs22Hdr->Width;
3826	pThis->cyLogo = pOs22Hdr->Height;
3827	pThis->cLogoPlanes = pOs22Hdr->Planes;
3828	pThis->cLogoBits = pOs22Hdr->BitCount;
3829	pThis->LogoCompression = pOs22Hdr->Compression;
3830	pThis->cLogoUsedColors = pOs22Hdr->ClrUsed;
3831	break;
3832
3833	case BMP_HEADER_WIN3:
3834	pThis->cxLogo = pWinHdr->Width;
3835	pThis->cyLogo = pWinHdr->Height;
3836	pThis->cLogoPlanes = pWinHdr->Planes;
3837	pThis->cLogoBits = pWinHdr->BitCount;
3838	pThis->LogoCompression = pWinHdr->Compression;
3839	pThis->cLogoUsedColors = pWinHdr->ClrUsed;
3840	break;
3841
3842	default:
3843	AssertLogRelMsgFailedReturn(("Unsupported bitmap header size %u.\n", pWinHdr->Size),
3844	VERR_INVALID_PARAMETER);
3845	break;
3846	}
3847
3848	AssertLogRelMsgReturn(pThis->cxLogo <= LOGO_MAX_WIDTH && pThis->cyLogo <= LOGO_MAX_HEIGHT,
3849	("Bitmap %ux%u is too big.\n", pThis->cxLogo, pThis->cyLogo),
3850	VERR_INVALID_PARAMETER);
3851
3852	AssertLogRelMsgReturn(pThis->cLogoPlanes == 1,
3853	("Bitmap planes %u != 1.\n", pThis->cLogoPlanes),
3854	VERR_INVALID_PARAMETER);
3855
3856	AssertLogRelMsgReturn(pThis->cLogoBits == 4 \|\| pThis->cLogoBits == 8 \|\| pThis->cLogoBits == 24,
3857	("Unsupported %u depth.\n", pThis->cLogoBits),
3858	VERR_INVALID_PARAMETER);
3859
3860	AssertLogRelMsgReturn(pThis->cLogoUsedColors <= 256,
3861	("Unsupported %u colors.\n", pThis->cLogoUsedColors),
3862	VERR_INVALID_PARAMETER);
3863
3864	AssertLogRelMsgReturn(pThis->LogoCompression == BMP_COMPRESS_NONE,
3865	("Unsupported %u compression.\n", pThis->LogoCompression),
3866	VERR_INVALID_PARAMETER);
3867
3868	/*
3869	* Read bitmap palette
3870	*/
3871	if (!pThis->cLogoUsedColors)
3872	pThis->cLogoPalEntries = 1 << (pThis->cLogoPlanes * pThis->cLogoBits);
3873	else
3874	pThis->cLogoPalEntries = pThis->cLogoUsedColors;
3875
3876	if (pThis->cLogoPalEntries)
3877	{
3878	const uint8_t pbPal = pThis->pbLogo + sizeof(LOGOHDR) + sizeof(BMPINFO) + pWinHdr->Size; / ASSUMES Size location (safe) */
3879
3880	for (i = 0; i < pThis->cLogoPalEntries; i++)
3881	{
3882	uint16_t j;
3883	uint32_t u32Pal = 0;
3884
3885	for (j = 0; j < 3; j++)
3886	{
3887	uint8_t b = *pbPal++;
3888	u32Pal <<= 8;
3889	u32Pal \|= b;
3890	}
3891
3892	pbPal++; /* skip unused byte */
3893	pThis->au32LogoPalette[i] = u32Pal;
3894	}
3895	}
3896
3897	/*
3898	* Bitmap data offset
3899	*/
3900	pThis->pbLogoBitmap = pThis->pbLogo + sizeof(LOGOHDR) + bmpInfo->Offset;
3901	}
3902	else
3903	AssertLogRelMsgFailedReturn(("Not a BMP file.\n"), VERR_INVALID_PARAMETER);
3904
3905	return VINF_SUCCESS;
3906	}
3907
3908
3909	/**
3910	* Show logo bitmap data.
3911	*
3912	* @returns VBox status code.
3913	*
3914	* @param cBits Logo depth.
3915	* @param xLogo Logo X position.
3916	* @param yLogo Logo Y position.
3917	* @param cxLogo Logo width.
3918	* @param cyLogo Logo height.
3919	* @param fInverse True if the bitmask is black on white (only for 1bpp)
3920	* @param iStep Fade in/fade out step.
3921	* @param pu32Palette Palette data.
3922	* @param pbSrc Source buffer.
3923	* @param pbDst Destination buffer.
3924	*/
3925	static void vbeShowBitmap(uint16_t cBits, uint16_t xLogo, uint16_t yLogo, uint16_t cxLogo, uint16_t cyLogo,
3926	bool fInverse, uint8_t iStep,
3927	const uint32_t pu32Palette, const uint8_t pbSrc, uint8_t *pbDst)
3928	{
3929	uint16_t i;
3930	size_t cbPadBytes = 0;
3931	size_t cbLineDst = LOGO_MAX_WIDTH * 4;
3932	uint16_t cyLeft = cyLogo;
3933
3934	pbDst += xLogo * 4 + yLogo * cbLineDst;
3935
3936	switch (cBits)
3937	{
3938	case 1:
3939	pbDst += cyLogo * cbLineDst;
3940	cbPadBytes = 0;
3941	break;
3942
3943	case 4:
3944	if (((cxLogo % 8) == 0) \|\| ((cxLogo % 8) > 6))
3945	cbPadBytes = 0;
3946	else if ((cxLogo % 8) <= 2)
3947	cbPadBytes = 3;
3948	else if ((cxLogo % 8) <= 4)
3949	cbPadBytes = 2;
3950	else
3951	cbPadBytes = 1;
3952	break;
3953
3954	case 8:
3955	cbPadBytes = ((cxLogo % 4) == 0) ? 0 : (4 - (cxLogo % 4));
3956	break;
3957
3958	case 24:
3959	cbPadBytes = cxLogo % 4;
3960	break;
3961	}
3962
3963	uint8_t j = 0, c = 0;
3964
3965	while (cyLeft-- > 0)
3966	{
3967	uint8_t *pbTmpDst = pbDst;
3968
3969	if (cBits != 1)
3970	j = 0;
3971
3972	for (i = 0; i < cxLogo; i++)
3973	{
3974	switch (cBits)
3975	{
3976	case 1:
3977	{
3978	if (!j)
3979	c = *pbSrc++;
3980
3981	if (c & 1)
3982	{
3983	if (fInverse)
3984	{
3985	*pbTmpDst++ = 0;
3986	*pbTmpDst++ = 0;
3987	*pbTmpDst++ = 0;
3988	pbTmpDst++;
3989	}
3990	else
3991	{
3992	uint8_t pix = 0xFF * iStep / LOGO_SHOW_STEPS;
3993	*pbTmpDst++ = pix;
3994	*pbTmpDst++ = pix;
3995	*pbTmpDst++ = pix;
3996	pbTmpDst++;
3997	}
3998	}
3999	else
4000	pbTmpDst += 4;
4001	c >>= 1;
4002	j = (j + 1) % 8;
4003	break;
4004	}
4005
4006	case 4:
4007	{
4008	if (!j)
4009	c = *pbSrc++;
4010
4011	uint8_t pix = (c >> 4) & 0xF;
4012	c <<= 4;
4013
4014	uint32_t u32Pal = pu32Palette[pix];
4015
4016	pix = (u32Pal >> 16) & 0xFF;
4017	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4018	pix = (u32Pal >> 8) & 0xFF;
4019	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4020	pix = u32Pal & 0xFF;
4021	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4022	pbTmpDst++;
4023
4024	j = (j + 1) % 2;
4025	break;
4026	}
4027
4028	case 8:
4029	{
4030	uint32_t u32Pal = pu32Palette[*pbSrc++];
4031
4032	uint8_t pix = (u32Pal >> 16) & 0xFF;
4033	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4034	pix = (u32Pal >> 8) & 0xFF;
4035	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4036	pix = u32Pal & 0xFF;
4037	pbTmpDst++ = pix iStep / LOGO_SHOW_STEPS;
4038	pbTmpDst++;
4039	break;
4040	}
4041
4042	case 24:
4043	pbTmpDst++ = pbSrc++ * iStep / LOGO_SHOW_STEPS;
4044	pbTmpDst++ = pbSrc++ * iStep / LOGO_SHOW_STEPS;
4045	pbTmpDst++ = pbSrc++ * iStep / LOGO_SHOW_STEPS;
4046	pbTmpDst++;
4047	break;
4048	}
4049	}
4050
4051	pbDst -= cbLineDst;
4052	pbSrc += cbPadBytes;
4053	}
4054	}
4055
4056
4057	/**
4058	* @callback_method_impl{FNIOMIOPORTOUT,
4059	* Port I/O Handler for BIOS Logo OUT operations.}
4060	*/
4061	PDMBOTHCBDECL(int) vbeIOPortWriteCMDLogo(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
4062	{
4063	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4064	NOREF(pvUser);
4065	NOREF(Port);
4066
4067	Log(("vbeIOPortWriteCMDLogo: cb=%d u32=%#04x(%#04d) (byte)\n", cb, u32, u32));
4068
4069	if (cb == 2)
4070	{
4071	/* Get the logo command */
4072	switch (u32 & 0xFF00)
4073	{
4074	case LOGO_CMD_SET_OFFSET:
4075	pThis->offLogoData = u32 & 0xFF;
4076	break;
4077
4078	case LOGO_CMD_SHOW_BMP:
4079	{
4080	uint8_t iStep = u32 & 0xFF;
4081	const uint8_t *pbSrc = pThis->pbLogoBitmap;
4082	uint8_t *pbDst;
4083	PCLOGOHDR pLogoHdr = (PCLOGOHDR)pThis->pbLogo;
4084	uint32_t offDirty = 0;
4085	uint16_t xLogo = (LOGO_MAX_WIDTH - pThis->cxLogo) / 2;
4086	uint16_t yLogo = LOGO_MAX_HEIGHT - (LOGO_MAX_HEIGHT - pThis->cyLogo) / 2;
4087
4088	/* Check VRAM size */
4089	if (pThis->vram_size < LOGO_MAX_SIZE)
4090	break;
4091
4092	if (pThis->vram_size >= LOGO_MAX_SIZE * 2)
4093	pbDst = pThis->vram_ptrR3 + LOGO_MAX_SIZE;
4094	else
4095	pbDst = pThis->vram_ptrR3;
4096
4097	/* Clear screen - except on power on... */
4098	if (!pThis->fLogoClearScreen)
4099	{
4100	/* Clear vram */
4101	uint32_t pu32Dst = (uint32_t )pbDst;
4102	for (int i = 0; i < LOGO_MAX_WIDTH; i++)
4103	for (int j = 0; j < LOGO_MAX_HEIGHT; j++)
4104	*pu32Dst++ = 0;
4105	pThis->fLogoClearScreen = true;
4106	}
4107
4108	/* Show the bitmap. */
4109	vbeShowBitmap(pThis->cLogoBits, xLogo, yLogo,
4110	pThis->cxLogo, pThis->cyLogo,
4111	false, iStep, &pThis->au32LogoPalette[0],
4112	pbSrc, pbDst);
4113
4114	/* Show the 'Press F12...' text. */
4115	if (pLogoHdr->fu8ShowBootMenu == 2)
4116	vbeShowBitmap(1, LOGO_F12TEXT_X, LOGO_F12TEXT_Y,
4117	LOGO_F12TEXT_WIDTH, LOGO_F12TEXT_HEIGHT,
4118	pThis->fBootMenuInverse, iStep, &pThis->au32LogoPalette[0],
4119	&g_abLogoF12BootText[0], pbDst);
4120
4121	/* Blit the offscreen buffer. */
4122	if (pThis->vram_size >= LOGO_MAX_SIZE * 2)
4123	{
4124	uint32_t pu32TmpDst = (uint32_t )pThis->vram_ptrR3;
4125	uint32_t pu32TmpSrc = (uint32_t )(pThis->vram_ptrR3 + LOGO_MAX_SIZE);
4126	for (int i = 0; i < LOGO_MAX_WIDTH; i++)
4127	{
4128	for (int j = 0; j < LOGO_MAX_HEIGHT; j++)
4129	pu32TmpDst++ = pu32TmpSrc++;
4130	}
4131	}
4132
4133	/* Set the dirty flags. */
4134	while (offDirty <= LOGO_MAX_SIZE)
4135	{
4136	vga_set_dirty(pThis, offDirty);
4137	offDirty += PAGE_SIZE;
4138	}
4139	break;
4140	}
4141
4142	default:
4143	Log(("vbeIOPortWriteCMDLogo: invalid command %d\n", u32));
4144	pThis->LogoCommand = LOGO_CMD_NOP;
4145	break;
4146	}
4147
4148	return VINF_SUCCESS;
4149	}
4150
4151	Log(("vbeIOPortWriteCMDLogo: Ignoring invalid cb=%d writes to the VBE Extra port!!!\n", cb));
4152	return VINF_SUCCESS;
4153	}
4154
4155
4156	/**
4157	* @callback_method_impl{FNIOMIOPORTIN,
4158	* Port I/O Handler for BIOS Logo IN operations.}
4159	*/
4160	PDMBOTHCBDECL(int) vbeIOPortReadCMDLogo(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
4161	{
4162	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4163	NOREF(pvUser);
4164	NOREF(Port);
4165
4166	if (pThis->offLogoData + cb > pThis->cbLogo)
4167	{
4168	Log(("vbeIOPortReadCMDLogo: Requested address is out of Logo data!!! offLogoData=%#x(%d) cbLogo=%#x(%d)\n",
4169	pThis->offLogoData, pThis->offLogoData, pThis->cbLogo, pThis->cbLogo));
4170	return VINF_SUCCESS;
4171	}
4172	RT_UNTRUSTED_VALIDATED_FENCE();
4173
4174	PCRTUINT64U p = (PCRTUINT64U)&pThis->pbLogo[pThis->offLogoData];
4175	switch (cb)
4176	{
4177	case 1: *pu32 = p->au8[0]; break;
4178	case 2: *pu32 = p->au16[0]; break;
4179	case 4: *pu32 = p->au32[0]; break;
4180	//case 8: *pu32 = p->au64[0]; break;
4181	default: AssertFailed(); break;
4182	}
4183	Log(("vbeIOPortReadCMDLogo: LogoOffset=%#x(%d) cb=%#x %.*Rhxs\n", pThis->offLogoData, pThis->offLogoData, cb, cb, pu32));
4184
4185	pThis->LogoCommand = LOGO_CMD_NOP;
4186	pThis->offLogoData += cb;
4187
4188	return VINF_SUCCESS;
4189	}
4190
4191
4192	/* -=-=-=-=-=- Ring 3: Debug Info Handlers -=-=-=-=-=- */
4193
4194	/**
4195	* @callback_method_impl{FNDBGFHANDLERDEV,
4196	* Dumps several interesting bits of the VGA state that are difficult to
4197	* decode from the registers.}
4198	*/
4199	static DECLCALLBACK(void) vgaInfoState(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4200	{
4201	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4202	int is_graph, double_scan;
4203	int w, h, char_height, char_dots;
4204	int val, vfreq_hz, hfreq_hz;
4205	vga_retrace_s *r = &pThis->retrace_state;
4206	const char *clocks[] = { "25.175 MHz", "28.322 MHz", "External", "Reserved?!" };
4207	NOREF(pszArgs);
4208
4209	is_graph = pThis->gr[6] & 1;
4210	char_dots = (pThis->sr[0x01] & 1) ? 8 : 9;
4211	double_scan = pThis->cr[9] >> 7;
4212	pHlp->pfnPrintf(pHlp, "pixel clock: %s\n", clocks[(pThis->msr >> 2) & 3]);
4213	pHlp->pfnPrintf(pHlp, "double scanning %s\n", double_scan ? "on" : "off");
4214	pHlp->pfnPrintf(pHlp, "double clocking %s\n", pThis->sr[1] & 0x08 ? "on" : "off");
4215	val = pThis->cr[0] + 5;
4216	pHlp->pfnPrintf(pHlp, "htotal: %d px (%d cclk)\n", val * char_dots, val);
4217	val = pThis->cr[6] + ((pThis->cr[7] & 1) << 8) + ((pThis->cr[7] & 0x20) << 4) + 2;
4218	pHlp->pfnPrintf(pHlp, "vtotal: %d px\n", val);
4219	val = pThis->cr[1] + 1;
4220	w = val * char_dots;
4221	pHlp->pfnPrintf(pHlp, "hdisp : %d px (%d cclk)\n", w, val);
4222	val = pThis->cr[0x12] + ((pThis->cr[7] & 2) << 7) + ((pThis->cr[7] & 0x40) << 4) + 1;
4223	h = val;
4224	pHlp->pfnPrintf(pHlp, "vdisp : %d px\n", val);
4225	val = ((pThis->cr[9] & 0x40) << 3) + ((pThis->cr[7] & 0x10) << 4) + pThis->cr[0x18];
4226	pHlp->pfnPrintf(pHlp, "split : %d ln\n", val);
4227	val = (pThis->cr[0xc] << 8) + pThis->cr[0xd];
4228	pHlp->pfnPrintf(pHlp, "start : %#x\n", val);
4229	if (!is_graph)
4230	{
4231	val = (pThis->cr[9] & 0x1f) + 1;
4232	char_height = val;
4233	pHlp->pfnPrintf(pHlp, "char height %d\n", val);
4234	pHlp->pfnPrintf(pHlp, "text mode %dx%d\n", w / char_dots, h / (char_height << double_scan));
4235
4236	uint32_t cbLine;
4237	uint32_t offStart;
4238	uint32_t uLineCompareIgn;
4239	vga_get_offsets(pThis, &cbLine, &offStart, &uLineCompareIgn);
4240	if (!cbLine)
4241	cbLine = 80 * 8;
4242	offStart *= 8;
4243	pHlp->pfnPrintf(pHlp, "cbLine: %#x\n", cbLine);
4244	pHlp->pfnPrintf(pHlp, "offStart: %#x (line %#x)\n", offStart, offStart / cbLine);
4245	}
4246	if (pThis->fRealRetrace)
4247	{
4248	val = r->hb_start;
4249	pHlp->pfnPrintf(pHlp, "hblank start: %d px (%d cclk)\n", val * char_dots, val);
4250	val = r->hb_end;
4251	pHlp->pfnPrintf(pHlp, "hblank end : %d px (%d cclk)\n", val * char_dots, val);
4252	pHlp->pfnPrintf(pHlp, "vblank start: %d px, end: %d px\n", r->vb_start, r->vb_end);
4253	pHlp->pfnPrintf(pHlp, "vsync start : %d px, end: %d px\n", r->vs_start, r->vs_end);
4254	pHlp->pfnPrintf(pHlp, "cclks per frame: %d\n", r->frame_cclks);
4255	pHlp->pfnPrintf(pHlp, "cclk time (ns) : %d\n", r->cclk_ns);
4256	if (r->frame_ns && r->h_total_ns) /* Careful in case state is temporarily invalid. */
4257	{
4258	vfreq_hz = 1000000000 / r->frame_ns;
4259	hfreq_hz = 1000000000 / r->h_total_ns;
4260	pHlp->pfnPrintf(pHlp, "vfreq: %d Hz, hfreq: %d.%03d kHz\n",
4261	vfreq_hz, hfreq_hz / 1000, hfreq_hz % 1000);
4262	}
4263	}
4264	pHlp->pfnPrintf(pHlp, "display refresh interval: %u ms\n", pThis->cMilliesRefreshInterval);
4265
4266	#ifdef VBOX_WITH_VMSVGA
4267	if (pThis->svga.fEnabled)
4268	pHlp->pfnPrintf(pHlp, pThis->svga.f3DEnabled ? "VMSVGA 3D enabled: %ux%ux%u\n" : "VMSVGA enabled: %ux%ux%u",
4269	pThis->svga.uWidth, pThis->svga.uHeight, pThis->svga.uBpp);
4270	#endif
4271	}
4272
4273
4274	/**
4275	* Prints a separator line.
4276	*
4277	* @param pHlp Callback functions for doing output.
4278	* @param cCols The number of columns.
4279	* @param pszTitle The title text, NULL if none.
4280	*/
4281	static void vgaInfoTextPrintSeparatorLine(PCDBGFINFOHLP pHlp, size_t cCols, const char *pszTitle)
4282	{
4283	if (pszTitle)
4284	{
4285	size_t cchTitle = strlen(pszTitle);
4286	if (cchTitle + 6 >= cCols)
4287	{
4288	pHlp->pfnPrintf(pHlp, "-- %s --", pszTitle);
4289	cCols = 0;
4290	}
4291	else
4292	{
4293	size_t cchLeft = (cCols - cchTitle - 2) / 2;
4294	cCols -= cchLeft + cchTitle + 2;
4295	while (cchLeft-- > 0)
4296	pHlp->pfnPrintf(pHlp, "-");
4297	pHlp->pfnPrintf(pHlp, " %s ", pszTitle);
4298	}
4299	}
4300
4301	while (cCols-- > 0)
4302	pHlp->pfnPrintf(pHlp, "-");
4303	pHlp->pfnPrintf(pHlp, "\n");
4304	}
4305
4306
4307	/**
4308	* Worker for vgaInfoText.
4309	*
4310	* @param pThis The vga state.
4311	* @param pHlp Callback functions for doing output.
4312	* @param offStart Where to start dumping (relative to the VRAM).
4313	* @param cbLine The source line length (aka line_offset).
4314	* @param cCols The number of columns on the screen.
4315	* @param cRows The number of rows to dump.
4316	* @param iScrBegin The row at which the current screen output starts.
4317	* @param iScrEnd The row at which the current screen output end
4318	* (exclusive).
4319	*/
4320	static void vgaInfoTextWorker(PVGASTATE pThis, PCDBGFINFOHLP pHlp,
4321	uint32_t offStart, uint32_t cbLine,
4322	uint32_t cCols, uint32_t cRows,
4323	uint32_t iScrBegin, uint32_t iScrEnd)
4324	{
4325	/* Title, */
4326	char szTitle[32];
4327	if (iScrBegin \|\| iScrEnd < cRows)
4328	RTStrPrintf(szTitle, sizeof(szTitle), "%ux%u (+%u before, +%u after)",
4329	cCols, iScrEnd - iScrBegin, iScrBegin, cRows - iScrEnd);
4330	else
4331	RTStrPrintf(szTitle, sizeof(szTitle), "%ux%u", cCols, iScrEnd - iScrBegin);
4332
4333	/* Do the dumping. */
4334	uint8_t const *pbSrcOuter = pThis->CTX_SUFF(vram_ptr) + offStart;
4335	uint32_t iRow;
4336	for (iRow = 0; iRow < cRows; iRow++, pbSrcOuter += cbLine)
4337	{
4338	if ((uintptr_t)(pbSrcOuter + cbLine - pThis->CTX_SUFF(vram_ptr)) > pThis->vram_size) {
4339	pHlp->pfnPrintf(pHlp, "The last %u row/rows is/are outside the VRAM.\n", cRows - iRow);
4340	break;
4341	}
4342
4343	if (iRow == 0)
4344	vgaInfoTextPrintSeparatorLine(pHlp, cCols, szTitle);
4345	else if (iRow == iScrBegin)
4346	vgaInfoTextPrintSeparatorLine(pHlp, cCols, "screen start");
4347	else if (iRow == iScrEnd)
4348	vgaInfoTextPrintSeparatorLine(pHlp, cCols, "screen end");
4349
4350	uint8_t const *pbSrc = pbSrcOuter;
4351	for (uint32_t iCol = 0; iCol < cCols; ++iCol)
4352	{
4353	if (RT_C_IS_PRINT(*pbSrc))
4354	pHlp->pfnPrintf(pHlp, "%c", *pbSrc);
4355	else
4356	pHlp->pfnPrintf(pHlp, ".");
4357	pbSrc += 8; /* chars are spaced 8 bytes apart */
4358	}
4359	pHlp->pfnPrintf(pHlp, "\n");
4360	}
4361
4362	/* Final separator. */
4363	vgaInfoTextPrintSeparatorLine(pHlp, cCols, NULL);
4364	}
4365
4366
4367	/**
4368	* @callback_method_impl{FNDBGFHANDLERDEV,
4369	* Dumps VGA memory formatted as ASCII text\, no attributes. Only looks at
4370	* the first page.}
4371	*/
4372	static DECLCALLBACK(void) vgaInfoText(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4373	{
4374	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4375
4376	/*
4377	* Parse args.
4378	*/
4379	bool fAll = true;
4380	if (pszArgs && *pszArgs)
4381	{
4382	if (!strcmp(pszArgs, "all"))
4383	fAll = true;
4384	else if (!strcmp(pszArgs, "scr") \|\| !strcmp(pszArgs, "screen"))
4385	fAll = false;
4386	else
4387	{
4388	pHlp->pfnPrintf(pHlp, "Invalid argument: '%s'\n", pszArgs);
4389	return;
4390	}
4391	}
4392
4393	/*
4394	* Check that we're in text mode and that the VRAM is accessible.
4395	*/
4396	if (!(pThis->gr[6] & 1))
4397	{
4398	uint8_t *pbSrc = pThis->vram_ptrR3;
4399	if (pbSrc)
4400	{
4401	/*
4402	* Figure out the display size and where the text is.
4403	*
4404	* Note! We're cutting quite a few corners here and this code could
4405	* do with some brushing up. Dumping from the start of the
4406	* frame buffer is done intentionally so that we're more
4407	* likely to obtain the full scrollback of a linux panic.
4408	* windbg> .printf "------ start -----\n"; .for (r $t0 = 0; @$t0 < 25; r $t0 = @$t0 + 1) { .for (r $t1 = 0; @$t1 < 80; r $t1 = @$t1 + 1) { .printf "%c", by( (@$t0 * 80 + @$t1) * 8 + 100f0000) }; .printf "\n" }; .printf "------ end -----\n";
4409	*/
4410	uint32_t cbLine;
4411	uint32_t offStart;
4412	uint32_t uLineCompareIgn;
4413	vga_get_offsets(pThis, &cbLine, &offStart, &uLineCompareIgn);
4414	if (!cbLine)
4415	cbLine = 80 * 8;
4416	offStart *= 8;
4417
4418	uint32_t uVDisp = pThis->cr[0x12] + ((pThis->cr[7] & 2) << 7) + ((pThis->cr[7] & 0x40) << 4) + 1;
4419	uint32_t uCharHeight = (pThis->cr[9] & 0x1f) + 1;
4420	uint32_t uDblScan = pThis->cr[9] >> 7;
4421	uint32_t cScrRows = uVDisp / (uCharHeight << uDblScan);
4422	if (cScrRows < 25)
4423	cScrRows = 25;
4424	uint32_t iScrBegin = offStart / cbLine;
4425	uint32_t cRows = iScrBegin + cScrRows;
4426	uint32_t cCols = cbLine / 8;
4427
4428	if (fAll) {
4429	vgaInfoTextWorker(pThis, pHlp, offStart - iScrBegin * cbLine, cbLine,
4430	cCols, cRows, iScrBegin, iScrBegin + cScrRows);
4431	} else {
4432	vgaInfoTextWorker(pThis, pHlp, offStart, cbLine, cCols, cScrRows, 0, cScrRows);
4433	}
4434	}
4435	else
4436	pHlp->pfnPrintf(pHlp, "VGA memory not available!\n");
4437	}
4438	else
4439	pHlp->pfnPrintf(pHlp, "Not in text mode!\n");
4440	}
4441
4442
4443	/**
4444	* @callback_method_impl{FNDBGFHANDLERDEV, Dumps VGA Sequencer registers.}
4445	*/
4446	static DECLCALLBACK(void) vgaInfoSR(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4447	{
4448	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4449	unsigned i;
4450	NOREF(pszArgs);
4451
4452	pHlp->pfnPrintf(pHlp, "VGA Sequencer (3C5): SR index 3C4:%02X\n", pThis->sr_index);
4453	Assert(sizeof(pThis->sr) >= 8);
4454	for (i = 0; i < 8; ++i)
4455	pHlp->pfnPrintf(pHlp, " SR%02X:%02X", i, pThis->sr[i]);
4456	pHlp->pfnPrintf(pHlp, "\n");
4457	}
4458
4459
4460	/**
4461	* @callback_method_impl{FNDBGFHANDLERDEV, Dumps VGA CRTC registers.}
4462	*/
4463	static DECLCALLBACK(void) vgaInfoCR(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4464	{
4465	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4466	unsigned i;
4467	NOREF(pszArgs);
4468
4469	pHlp->pfnPrintf(pHlp, "VGA CRTC (3D5): CRTC index 3D4:%02X\n", pThis->cr_index);
4470	Assert(sizeof(pThis->cr) >= 24);
4471	for (i = 0; i < 10; ++i)
4472	pHlp->pfnPrintf(pHlp, " CR%02X:%02X", i, pThis->cr[i]);
4473	pHlp->pfnPrintf(pHlp, "\n");
4474	for (i = 10; i < 20; ++i)
4475	pHlp->pfnPrintf(pHlp, " CR%02X:%02X", i, pThis->cr[i]);
4476	pHlp->pfnPrintf(pHlp, "\n");
4477	for (i = 20; i < 25; ++i)
4478	pHlp->pfnPrintf(pHlp, " CR%02X:%02X", i, pThis->cr[i]);
4479	pHlp->pfnPrintf(pHlp, "\n");
4480	}
4481
4482
4483	/**
4484	* @callback_method_impl{FNDBGFHANDLERDEV,
4485	* Dumps VGA Graphics Controller registers.}
4486	*/
4487	static DECLCALLBACK(void) vgaInfoGR(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4488	{
4489	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4490	unsigned i;
4491	NOREF(pszArgs);
4492
4493	pHlp->pfnPrintf(pHlp, "VGA Graphics Controller (3CF): GR index 3CE:%02X\n", pThis->gr_index);
4494	Assert(sizeof(pThis->gr) >= 9);
4495	for (i = 0; i < 9; ++i)
4496	{
4497	pHlp->pfnPrintf(pHlp, " GR%02X:%02X", i, pThis->gr[i]);
4498	}
4499	pHlp->pfnPrintf(pHlp, "\n");
4500	}
4501
4502
4503	/**
4504	* @callback_method_impl{FNDBGFHANDLERDEV,
4505	* Dumps VGA Attribute Controller registers.}
4506	*/
4507	static DECLCALLBACK(void) vgaInfoAR(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4508	{
4509	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4510	unsigned i;
4511	NOREF(pszArgs);
4512
4513	pHlp->pfnPrintf(pHlp, "VGA Attribute Controller (3C0): index reg %02X, flip-flop: %d (%s)\n",
4514	pThis->ar_index, pThis->ar_flip_flop, pThis->ar_flip_flop ? "data" : "index" );
4515	Assert(sizeof(pThis->ar) >= 0x14);
4516	pHlp->pfnPrintf(pHlp, " Palette:");
4517	for (i = 0; i < 0x10; ++i)
4518	pHlp->pfnPrintf(pHlp, " %02X", pThis->ar[i]);
4519	pHlp->pfnPrintf(pHlp, "\n");
4520	for (i = 0x10; i <= 0x14; ++i)
4521	pHlp->pfnPrintf(pHlp, " AR%02X:%02X", i, pThis->ar[i]);
4522	pHlp->pfnPrintf(pHlp, "\n");
4523	}
4524
4525
4526	/**
4527	* @callback_method_impl{FNDBGFHANDLERDEV, Dumps VGA DAC registers.}
4528	*/
4529	static DECLCALLBACK(void) vgaInfoDAC(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4530	{
4531	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4532	unsigned i;
4533	NOREF(pszArgs);
4534
4535	pHlp->pfnPrintf(pHlp, "VGA DAC contents:\n");
4536	for (i = 0; i < 0x100; ++i)
4537	pHlp->pfnPrintf(pHlp, " %02X: %02X %02X %02X\n",
4538	i, pThis->palette[i3+0], pThis->palette[i3+1], pThis->palette[i*3+2]);
4539	}
4540
4541
4542	/**
4543	* @callback_method_impl{FNDBGFHANDLERDEV, Dumps VBE registers.}
4544	*/
4545	static DECLCALLBACK(void) vgaInfoVBE(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4546	{
4547	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4548	NOREF(pszArgs);
4549
4550	pHlp->pfnPrintf(pHlp, "LFB at %RGp\n", pThis->GCPhysVRAM);
4551
4552	if (!(pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED))
4553	{
4554	pHlp->pfnPrintf(pHlp, "VBE disabled\n");
4555	return;
4556	}
4557
4558	pHlp->pfnPrintf(pHlp, "VBE state (chip ID 0x%04x):\n", pThis->vbe_regs[VBE_DISPI_INDEX_ID]);
4559	pHlp->pfnPrintf(pHlp, " Display resolution: %d x %d @ %dbpp\n",
4560	pThis->vbe_regs[VBE_DISPI_INDEX_XRES], pThis->vbe_regs[VBE_DISPI_INDEX_YRES],
4561	pThis->vbe_regs[VBE_DISPI_INDEX_BPP]);
4562	pHlp->pfnPrintf(pHlp, " Virtual resolution: %d x %d\n",
4563	pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH], pThis->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT]);
4564	pHlp->pfnPrintf(pHlp, " Display start addr: %d, %d\n",
4565	pThis->vbe_regs[VBE_DISPI_INDEX_X_OFFSET], pThis->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET]);
4566	pHlp->pfnPrintf(pHlp, " Linear scanline pitch: 0x%04x\n", pThis->vbe_line_offset);
4567	pHlp->pfnPrintf(pHlp, " Linear display start : 0x%04x\n", pThis->vbe_start_addr);
4568	pHlp->pfnPrintf(pHlp, " Selected bank: 0x%04x\n", pThis->vbe_regs[VBE_DISPI_INDEX_BANK]);
4569	}
4570
4571
4572	/**
4573	* @callback_method_impl{FNDBGFHANDLERDEV,
4574	* Dumps register state relevant to 16-color planar graphics modes (GR/SR)
4575	* in human-readable form.}
4576	*/
4577	static DECLCALLBACK(void) vgaInfoPlanar(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
4578	{
4579	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
4580	int val1, val2;
4581	NOREF(pszArgs);
4582
4583	val1 = (pThis->gr[5] >> 3) & 1;
4584	val2 = pThis->gr[5] & 3;
4585	pHlp->pfnPrintf(pHlp, "read mode : %d write mode: %d\n", val1, val2);
4586	val1 = pThis->gr[0];
4587	val2 = pThis->gr[1];
4588	pHlp->pfnPrintf(pHlp, "set/reset data: %02X S/R enable: %02X\n", val1, val2);
4589	val1 = pThis->gr[2];
4590	val2 = pThis->gr[4] & 3;
4591	pHlp->pfnPrintf(pHlp, "color compare : %02X read map : %d\n", val1, val2);
4592	val1 = pThis->gr[3] & 7;
4593	val2 = (pThis->gr[3] >> 3) & 3;
4594	pHlp->pfnPrintf(pHlp, "rotate : %d function : %d\n", val1, val2);
4595	val1 = pThis->gr[7];
4596	val2 = pThis->gr[8];
4597	pHlp->pfnPrintf(pHlp, "don't care : %02X bit mask : %02X\n", val1, val2);
4598	val1 = pThis->sr[2];
4599	val2 = pThis->sr[4] & 8;
4600	pHlp->pfnPrintf(pHlp, "seq plane mask: %02X chain-4 : %s\n", val1, val2 ? "on" : "off");
4601	}
4602
4603
4604	/* -=-=-=-=-=- Ring 3: IBase -=-=-=-=-=- */
4605
4606	/**
4607	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
4608	*/
4609	static DECLCALLBACK(void ) vgaPortQueryInterface(PPDMIBASE pInterface, const char pszIID)
4610	{
4611	PVGASTATE pThis = RT_FROM_MEMBER(pInterface, VGASTATE, IBase);
4612	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBase);
4613	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIDISPLAYPORT, &pThis->IPort);
4614	#if defined(VBOX_WITH_HGSMI) && (defined(VBOX_WITH_VIDEOHWACCEL) \|\| defined(VBOX_WITH_CRHGSMI))
4615	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIDISPLAYVBVACALLBACKS, &pThis->IVBVACallbacks);
4616	#endif
4617	PDMIBASE_RETURN_INTERFACE(pszIID, PDMILEDPORTS, &pThis->ILeds);
4618	return NULL;
4619	}
4620
4621	/* -=-=-=-=-=- Ring 3: ILeds -=-=-=-=-=- */
4622	#define ILEDPORTS_2_VGASTATE(pInterface) ( (PVGASTATE)((uintptr_t)pInterface - RT_OFFSETOF(VGASTATE, ILeds)) )
4623
4624	/**
4625	* Gets the pointer to the status LED of a unit.
4626	*
4627	* @returns VBox status code.
4628	* @param pInterface Pointer to the interface structure containing the called function pointer.
4629	* @param iLUN The unit which status LED we desire.
4630	* @param ppLed Where to store the LED pointer.
4631	*/
4632	static DECLCALLBACK(int) vgaPortQueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed)
4633	{
4634	PVGASTATE pThis = ILEDPORTS_2_VGASTATE(pInterface);
4635	switch (iLUN)
4636	{
4637	/* LUN #0 is the only one for which we have a status LED. */
4638	case 0:
4639	{
4640	*ppLed = &pThis->Led3D;
4641	Assert((*ppLed)->u32Magic == PDMLED_MAGIC);
4642	return VINF_SUCCESS;
4643	}
4644
4645	default:
4646	AssertMsgFailed(("Invalid LUN #%d\n", iLUN));
4647	return VERR_PDM_NO_SUCH_LUN;
4648	}
4649	}
4650
4651	/* -=-=-=-=-=- Ring 3: Dummy IDisplayConnector -=-=-=-=-=- */
4652
4653	/**
4654	* Resize the display.
4655	* This is called when the resolution changes. This usually happens on
4656	* request from the guest os, but may also happen as the result of a reset.
4657	*
4658	* @param pInterface Pointer to this interface.
4659	* @param bpp Bits per pixel.
4660	* @param pvVRAM VRAM.
4661	* @param cbLine Number of bytes per line.
4662	* @param cx New display width.
4663	* @param cy New display height
4664	* @thread The emulation thread.
4665	*/
4666	static DECLCALLBACK(int) vgaDummyResize(PPDMIDISPLAYCONNECTOR pInterface, uint32_t bpp, void *pvVRAM,
4667	uint32_t cbLine, uint32_t cx, uint32_t cy)
4668	{
4669	NOREF(pInterface); NOREF(bpp); NOREF(pvVRAM); NOREF(cbLine); NOREF(cx); NOREF(cy);
4670	return VINF_SUCCESS;
4671	}
4672
4673
4674	/**
4675	* Update a rectangle of the display.
4676	* PDMIDISPLAYPORT::pfnUpdateDisplay is the caller.
4677	*
4678	* @param pInterface Pointer to this interface.
4679	* @param x The upper left corner x coordinate of the rectangle.
4680	* @param y The upper left corner y coordinate of the rectangle.
4681	* @param cx The width of the rectangle.
4682	* @param cy The height of the rectangle.
4683	* @thread The emulation thread.
4684	*/
4685	static DECLCALLBACK(void) vgaDummyUpdateRect(PPDMIDISPLAYCONNECTOR pInterface, uint32_t x, uint32_t y, uint32_t cx, uint32_t cy)
4686	{
4687	NOREF(pInterface); NOREF(x); NOREF(y); NOREF(cx); NOREF(cy);
4688	}
4689
4690
4691	/**
4692	* Refresh the display.
4693	*
4694	* The interval between these calls is set by
4695	* PDMIDISPLAYPORT::pfnSetRefreshRate(). The driver should call
4696	* PDMIDISPLAYPORT::pfnUpdateDisplay() if it wishes to refresh the
4697	* display. PDMIDISPLAYPORT::pfnUpdateDisplay calls pfnUpdateRect with
4698	* the changed rectangles.
4699	*
4700	* @param pInterface Pointer to this interface.
4701	* @thread The emulation thread.
4702	*/
4703	static DECLCALLBACK(void) vgaDummyRefresh(PPDMIDISPLAYCONNECTOR pInterface)
4704	{
4705	NOREF(pInterface);
4706	}
4707
4708
4709	/* -=-=-=-=-=- Ring 3: IDisplayPort -=-=-=-=-=- */
4710
4711	/** Converts a display port interface pointer to a vga state pointer. */
4712	#define IDISPLAYPORT_2_VGASTATE(pInterface) ( (PVGASTATE)((uintptr_t)pInterface - RT_OFFSETOF(VGASTATE, IPort)) )
4713
4714
4715	/**
4716	* Update the display with any changed regions.
4717	*
4718	* @param pInterface Pointer to this interface.
4719	* @see PDMIKEYBOARDPORT::pfnUpdateDisplay() for details.
4720	*/
4721	static DECLCALLBACK(int) vgaPortUpdateDisplay(PPDMIDISPLAYPORT pInterface)
4722	{
4723	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
4724	PDMDEV_ASSERT_EMT(VGASTATE2DEVINS(pThis));
4725	PPDMDEVINS pDevIns = pThis->CTX_SUFF(pDevIns);
4726
4727	int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
4728	AssertRC(rc);
4729
4730	#ifdef VBOX_WITH_VMSVGA
4731	if ( pThis->svga.fEnabled
4732	&& !pThis->svga.fTraces)
4733	{
4734	/* Nothing to do as the guest will explicitely update us about frame buffer changes. */
4735	PDMCritSectLeave(&pThis->CritSect);
4736	return VINF_SUCCESS;
4737	}
4738	#endif
4739
4740	#ifndef VBOX_WITH_HGSMI
4741	/* This should be called only in non VBVA mode. */
4742	#else
4743	if (VBVAUpdateDisplay (pThis) == VINF_SUCCESS)
4744	{
4745	PDMCritSectLeave(&pThis->CritSect);
4746	return VINF_SUCCESS;
4747	}
4748	#endif /* VBOX_WITH_HGSMI */
4749
4750	STAM_COUNTER_INC(&pThis->StatUpdateDisp);
4751	if (pThis->fHasDirtyBits && pThis->GCPhysVRAM && pThis->GCPhysVRAM != NIL_RTGCPHYS)
4752	{
4753	PGMHandlerPhysicalReset(PDMDevHlpGetVM(pDevIns), pThis->GCPhysVRAM);
4754	pThis->fHasDirtyBits = false;
4755	}
4756	if (pThis->fRemappedVGA)
4757	{
4758	IOMMMIOResetRegion(PDMDevHlpGetVM(pDevIns), 0x000a0000);
4759	pThis->fRemappedVGA = false;
4760	}
4761
4762	rc = vga_update_display(pThis, false, false, true,
4763	pThis->pDrv, &pThis->graphic_mode);
4764	PDMCritSectLeave(&pThis->CritSect);
4765	return rc;
4766	}
4767
4768
4769	/**
4770	* Internal vgaPortUpdateDisplayAll worker called under pThis->CritSect.
4771	*/
4772	static int updateDisplayAll(PVGASTATE pThis, bool fFailOnResize)
4773	{
4774	PPDMDEVINS pDevIns = pThis->CTX_SUFF(pDevIns);
4775
4776	#ifdef VBOX_WITH_VMSVGA
4777	if ( !pThis->svga.fEnabled
4778	\|\| pThis->svga.fTraces)
4779	{
4780	#endif
4781	/* The dirty bits array has been just cleared, reset handlers as well. */
4782	if (pThis->GCPhysVRAM && pThis->GCPhysVRAM != NIL_RTGCPHYS)
4783	PGMHandlerPhysicalReset(PDMDevHlpGetVM(pDevIns), pThis->GCPhysVRAM);
4784	#ifdef VBOX_WITH_VMSVGA
4785	}
4786	#endif
4787	if (pThis->fRemappedVGA)
4788	{
4789	IOMMMIOResetRegion(PDMDevHlpGetVM(pDevIns), 0x000a0000);
4790	pThis->fRemappedVGA = false;
4791	}
4792
4793	pThis->graphic_mode = -1; /* force full update */
4794
4795	return vga_update_display(pThis, true, fFailOnResize, true,
4796	pThis->pDrv, &pThis->graphic_mode);
4797	}
4798
4799
4800	DECLCALLBACK(int) vgaUpdateDisplayAll(PVGASTATE pThis, bool fFailOnResize)
4801	{
4802	#ifdef DEBUG_sunlover
4803	LogFlow(("vgaPortUpdateDisplayAll\n"));
4804	#endif /* DEBUG_sunlover */
4805
4806	int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
4807	AssertRC(rc);
4808
4809	rc = updateDisplayAll(pThis, fFailOnResize);
4810
4811	PDMCritSectLeave(&pThis->CritSect);
4812	return rc;
4813	}
4814
4815	/**
4816	* Update the entire display.
4817	*
4818	* @param pInterface Pointer to this interface.
4819	* @param fFailOnResize Fail on resize.
4820	* @see PDMIKEYBOARDPORT::pfnUpdateDisplayAll() for details.
4821	*/
4822	static DECLCALLBACK(int) vgaPortUpdateDisplayAll(PPDMIDISPLAYPORT pInterface, bool fFailOnResize)
4823	{
4824	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
4825	PDMDEV_ASSERT_EMT(VGASTATE2DEVINS(pThis));
4826
4827	/* This is called both in VBVA mode and normal modes. */
4828
4829	return vgaUpdateDisplayAll(pThis, fFailOnResize);
4830	}
4831
4832
4833	/**
4834	* Sets the refresh rate and restart the timer.
4835	*
4836	* @returns VBox status code.
4837	* @param pInterface Pointer to this interface.
4838	* @param cMilliesInterval Number of millis between two refreshes.
4839	* @see PDMIKEYBOARDPORT::pfnSetRefreshRate() for details.
4840	*/
4841	static DECLCALLBACK(int) vgaPortSetRefreshRate(PPDMIDISPLAYPORT pInterface, uint32_t cMilliesInterval)
4842	{
4843	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
4844
4845	pThis->cMilliesRefreshInterval = cMilliesInterval;
4846	if (cMilliesInterval)
4847	return TMTimerSetMillies(pThis->RefreshTimer, cMilliesInterval);
4848	return TMTimerStop(pThis->RefreshTimer);
4849	}
4850
4851
4852	/** @interface_method_impl{PDMIDISPLAYPORT,pfnQueryVideoMode} */
4853	static DECLCALLBACK(int) vgaPortQueryVideoMode(PPDMIDISPLAYPORT pInterface, uint32_t pcBits, uint32_t pcx, uint32_t *pcy)
4854	{
4855	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
4856
4857	if (!pcBits)
4858	return VERR_INVALID_PARAMETER;
4859	*pcBits = vga_get_bpp(pThis);
4860	if (pcx)
4861	*pcx = pThis->last_scr_width;
4862	if (pcy)
4863	*pcy = pThis->last_scr_height;
4864	return VINF_SUCCESS;
4865	}
4866
4867
4868	/**
4869	* Create a 32-bbp screenshot of the display. Size of the bitmap scanline in bytes is 4*width.
4870	*
4871	* @param pInterface Pointer to this interface.
4872	* @param ppbData Where to store the pointer to the allocated
4873	* buffer.
4874	* @param pcbData Where to store the actual size of the bitmap.
4875	* @param pcx Where to store the width of the bitmap.
4876	* @param pcy Where to store the height of the bitmap.
4877	* @see PDMIDISPLAYPORT::pfnTakeScreenshot() for details.
4878	*/
4879	static DECLCALLBACK(int) vgaPortTakeScreenshot(PPDMIDISPLAYPORT pInterface, uint8_t *ppbData, size_t pcbData,
4880	uint32_t pcx, uint32_t pcy)
4881	{
4882	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
4883	PDMDEV_ASSERT_EMT(VGASTATE2DEVINS(pThis));
4884
4885	LogFlow(("vgaPortTakeScreenshot: ppbData=%p pcbData=%p pcx=%p pcy=%p\n", ppbData, pcbData, pcx, pcy));
4886
4887	/*
4888	* Validate input.
4889	*/
4890	if (!RT_VALID_PTR(ppbData) \|\| !RT_VALID_PTR(pcbData) \|\| !RT_VALID_PTR(pcx) \|\| !RT_VALID_PTR(pcy))
4891	return VERR_INVALID_PARAMETER;
4892
4893	int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
4894	AssertRCReturn(rc, rc);
4895
4896	/*
4897	* Get screenshot. This function will fail if a resize is required.
4898	* So there is not need to do a 'updateDisplayAll' before taking screenshot.
4899	*/
4900
4901	/*
4902	* Allocate the buffer for 32 bits per pixel bitmap
4903	*
4904	* Note! The size can't be zero or greater than the size of the VRAM.
4905	* Inconsistent VGA device state can cause the incorrect size values.
4906	*/
4907	size_t cbRequired = pThis->last_scr_width * 4 * pThis->last_scr_height;
4908	if (cbRequired && cbRequired <= pThis->vram_size)
4909	{
4910	uint8_t pbData = (uint8_t )RTMemAlloc(cbRequired);
4911	if (pbData != NULL)
4912	{
4913	/*
4914	* Only 3 methods, assigned below, will be called during the screenshot update.
4915	* All other are already set to NULL.
4916	*/
4917	/* The display connector interface is temporarily replaced with the fake one. */
4918	PDMIDISPLAYCONNECTOR Connector;
4919	RT_ZERO(Connector);
4920	Connector.pbData = pbData;
4921	Connector.cBits = 32;
4922	Connector.cx = pThis->last_scr_width;
4923	Connector.cy = pThis->last_scr_height;
4924	Connector.cbScanline = Connector.cx * 4;
4925	Connector.pfnRefresh = vgaDummyRefresh;
4926	Connector.pfnResize = vgaDummyResize;
4927	Connector.pfnUpdateRect = vgaDummyUpdateRect;
4928
4929	int32_t cur_graphic_mode = -1;
4930
4931	bool fSavedRenderVRAM = pThis->fRenderVRAM;
4932	pThis->fRenderVRAM = true;
4933
4934	/*
4935	* Take the screenshot.
4936	*
4937	* The second parameter is 'false' because the current display state is being rendered to an
4938	* external buffer using a fake connector. That is if display is blanked, we expect a black
4939	* screen in the external buffer.
4940	* If there is a pending resize, the function will fail.
4941	*/
4942	rc = vga_update_display(pThis, false, true, false, &Connector, &cur_graphic_mode);
4943
4944	pThis->fRenderVRAM = fSavedRenderVRAM;
4945
4946	if (rc == VINF_SUCCESS)
4947	{
4948	/*
4949	* Return the result.
4950	*/
4951	*ppbData = pbData;
4952	*pcbData = cbRequired;
4953	*pcx = Connector.cx;
4954	*pcy = Connector.cy;
4955	}
4956	else
4957	{
4958	/* If we do not return a success, then the data buffer must be freed. */
4959	RTMemFree(pbData);
4960	if (RT_SUCCESS_NP(rc))
4961	{
4962	AssertMsgFailed(("%Rrc\n", rc));
4963	rc = VERR_INTERNAL_ERROR_5;
4964	}
4965	}
4966	}
4967	else
4968	rc = VERR_NO_MEMORY;
4969	}
4970	else
4971	rc = VERR_NOT_SUPPORTED;
4972
4973	PDMCritSectLeave(&pThis->CritSect);
4974
4975	LogFlow(("vgaPortTakeScreenshot: returns %Rrc (cbData=%d cx=%d cy=%d)\n", rc, pcbData, pcx, *pcy));
4976	return rc;
4977	}
4978
4979	/**
4980	* Free a screenshot buffer allocated in vgaPortTakeScreenshot.
4981	*
4982	* @param pInterface Pointer to this interface.
4983	* @param pbData Pointer returned by vgaPortTakeScreenshot.
4984	* @see PDMIDISPLAYPORT::pfnFreeScreenshot() for details.
4985	*/
4986	static DECLCALLBACK(void) vgaPortFreeScreenshot(PPDMIDISPLAYPORT pInterface, uint8_t *pbData)
4987	{
4988	NOREF(pInterface);
4989
4990	LogFlow(("vgaPortFreeScreenshot: pbData=%p\n", pbData));
4991
4992	RTMemFree(pbData);
4993	}
4994
4995	/**
4996	* Copy bitmap to the display.
4997	*
4998	* @param pInterface Pointer to this interface.
4999	* @param pvData Pointer to the bitmap bits.
5000	* @param x The upper left corner x coordinate of the destination rectangle.
5001	* @param y The upper left corner y coordinate of the destination rectangle.
5002	* @param cx The width of the source and destination rectangles.
5003	* @param cy The height of the source and destination rectangles.
5004	* @see PDMIDISPLAYPORT::pfnDisplayBlt() for details.
5005	*/
5006	static DECLCALLBACK(int) vgaPortDisplayBlt(PPDMIDISPLAYPORT pInterface, const void *pvData, uint32_t x, uint32_t y,
5007	uint32_t cx, uint32_t cy)
5008	{
5009	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
5010	int rc = VINF_SUCCESS;
5011	PDMDEV_ASSERT_EMT(VGASTATE2DEVINS(pThis));
5012	LogFlow(("vgaPortDisplayBlt: pvData=%p x=%d y=%d cx=%d cy=%d\n", pvData, x, y, cx, cy));
5013
5014	rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
5015	AssertRC(rc);
5016
5017	/*
5018	* Validate input.
5019	*/
5020	if ( pvData
5021	&& x < pThis->pDrv->cx
5022	&& cx <= pThis->pDrv->cx
5023	&& cx + x <= pThis->pDrv->cx
5024	&& y < pThis->pDrv->cy
5025	&& cy <= pThis->pDrv->cy
5026	&& cy + y <= pThis->pDrv->cy)
5027	{
5028	/*
5029	* Determine bytes per pixel in the destination buffer.
5030	*/
5031	size_t cbPixelDst = 0;
5032	switch (pThis->pDrv->cBits)
5033	{
5034	case 8:
5035	cbPixelDst = 1;
5036	break;
5037	case 15:
5038	case 16:
5039	cbPixelDst = 2;
5040	break;
5041	case 24:
5042	cbPixelDst = 3;
5043	break;
5044	case 32:
5045	cbPixelDst = 4;
5046	break;
5047	default:
5048	rc = VERR_INVALID_PARAMETER;
5049	break;
5050	}
5051	if (RT_SUCCESS(rc))
5052	{
5053	/*
5054	* The blitting loop.
5055	*/
5056	size_t cbLineSrc = cx * 4; /* 32 bits per pixel. */
5057	uint8_t pbSrc = (uint8_t )pvData;
5058	size_t cbLineDst = pThis->pDrv->cbScanline;
5059	uint8_t pbDst = pThis->pDrv->pbData + y cbLineDst + x * cbPixelDst;
5060	uint32_t cyLeft = cy;
5061	vga_draw_line_func pfnVgaDrawLine = vga_draw_line_table[VGA_DRAW_LINE32 4 + get_depth_index(pThis->pDrv->cBits)];
5062	Assert(pfnVgaDrawLine);
5063	while (cyLeft-- > 0)
5064	{
5065	pfnVgaDrawLine(pThis, pbDst, pbSrc, cx);
5066	pbDst += cbLineDst;
5067	pbSrc += cbLineSrc;
5068	}
5069
5070	/*
5071	* Invalidate the area.
5072	*/
5073	pThis->pDrv->pfnUpdateRect(pThis->pDrv, x, y, cx, cy);
5074	}
5075	}
5076	else
5077	rc = VERR_INVALID_PARAMETER;
5078
5079	PDMCritSectLeave(&pThis->CritSect);
5080
5081	LogFlow(("vgaPortDisplayBlt: returns %Rrc\n", rc));
5082	return rc;
5083	}
5084
5085	static DECLCALLBACK(void) vgaPortUpdateDisplayRect(PPDMIDISPLAYPORT pInterface, int32_t x, int32_t y, uint32_t w, uint32_t h)
5086	{
5087	uint32_t v;
5088	vga_draw_line_func *vga_draw_line;
5089
5090	uint32_t cbPixelDst;
5091	uint32_t cbLineDst;
5092	uint8_t *pbDst;
5093
5094	uint32_t cbPixelSrc;
5095	uint32_t cbLineSrc;
5096	uint8_t *pbSrc;
5097
5098	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
5099
5100	#ifdef DEBUG_sunlover
5101	LogFlow(("vgaPortUpdateDisplayRect: %d,%d %dx%d\n", x, y, w, h));
5102	#endif /* DEBUG_sunlover */
5103
5104	Assert(pInterface);
5105
5106	int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
5107	AssertRC(rc);
5108
5109	/* Check if there is something to do at all. */
5110	if (!pThis->fRenderVRAM)
5111	{
5112	/* The framebuffer uses the guest VRAM directly. */
5113	#ifdef DEBUG_sunlover
5114	LogFlow(("vgaPortUpdateDisplayRect: nothing to do fRender is false.\n"));
5115	#endif /* DEBUG_sunlover */
5116	PDMCritSectLeave(&pThis->CritSect);
5117	return;
5118	}
5119
5120	Assert(pThis->pDrv);
5121	Assert(pThis->pDrv->pbData);
5122
5123	/* Correct negative x and y coordinates. */
5124	if (x < 0)
5125	{
5126	x += w; /* Compute xRight which is also the new width. */
5127	w = (x < 0) ? 0 : x;
5128	x = 0;
5129	}
5130
5131	if (y < 0)
5132	{
5133	y += h; /* Compute yBottom, which is also the new height. */
5134	h = (y < 0) ? 0 : y;
5135	y = 0;
5136	}
5137
5138	/* Also check if coords are greater than the display resolution. */
5139	if (x + w > pThis->pDrv->cx)
5140	{
5141	// x < 0 is not possible here
5142	w = pThis->pDrv->cx > (uint32_t)x? pThis->pDrv->cx - x: 0;
5143	}
5144
5145	if (y + h > pThis->pDrv->cy)
5146	{
5147	// y < 0 is not possible here
5148	h = pThis->pDrv->cy > (uint32_t)y? pThis->pDrv->cy - y: 0;
5149	}
5150
5151	#ifdef DEBUG_sunlover
5152	LogFlow(("vgaPortUpdateDisplayRect: %d,%d %dx%d (corrected coords)\n", x, y, w, h));
5153	#endif /* DEBUG_sunlover */
5154
5155	/* Check if there is something to do at all. */
5156	if (w == 0 \|\| h == 0)
5157	{
5158	/* Empty rectangle. */
5159	#ifdef DEBUG_sunlover
5160	LogFlow(("vgaPortUpdateDisplayRect: nothing to do: %dx%d\n", w, h));
5161	#endif /* DEBUG_sunlover */
5162	PDMCritSectLeave(&pThis->CritSect);
5163	return;
5164	}
5165
5166	/** @todo This method should be made universal and not only for VBVA.
5167	* VGA_DRAW_LINE* must be selected and src/dst address calculation
5168	* changed.
5169	*/
5170
5171	/* Choose the rendering function. */
5172	switch(pThis->get_bpp(pThis))
5173	{
5174	default:
5175	case 0:
5176	/* A LFB mode is already disabled, but the callback is still called
5177	* by Display because VBVA buffer is being flushed.
5178	* Nothing to do, just return.
5179	*/
5180	PDMCritSectLeave(&pThis->CritSect);
5181	return;
5182	case 8:
5183	v = VGA_DRAW_LINE8;
5184	break;
5185	case 15:
5186	v = VGA_DRAW_LINE15;
5187	break;
5188	case 16:
5189	v = VGA_DRAW_LINE16;
5190	break;
5191	case 24:
5192	v = VGA_DRAW_LINE24;
5193	break;
5194	case 32:
5195	v = VGA_DRAW_LINE32;
5196	break;
5197	}
5198
5199	vga_draw_line = vga_draw_line_table[v * 4 + get_depth_index(pThis->pDrv->cBits)];
5200
5201	/* Compute source and destination addresses and pitches. */
5202	cbPixelDst = (pThis->pDrv->cBits + 7) / 8;
5203	cbLineDst = pThis->pDrv->cbScanline;
5204	pbDst = pThis->pDrv->pbData + y * cbLineDst + x * cbPixelDst;
5205
5206	cbPixelSrc = (pThis->get_bpp(pThis) + 7) / 8;
5207	uint32_t offSrc, u32Dummy;
5208	pThis->get_offsets(pThis, &cbLineSrc, &offSrc, &u32Dummy);
5209
5210	/* Assume that rendering is performed only on visible part of VRAM.
5211	* This is true because coordinates were verified.
5212	*/
5213	pbSrc = pThis->vram_ptrR3;
5214	pbSrc += offSrc * 4 + y * cbLineSrc + x * cbPixelSrc;
5215
5216	/* Render VRAM to framebuffer. */
5217
5218	#ifdef DEBUG_sunlover
5219	LogFlow(("vgaPortUpdateDisplayRect: dst: %p, %d, %d. src: %p, %d, %d\n", pbDst, cbLineDst, cbPixelDst, pbSrc, cbLineSrc, cbPixelSrc));
5220	#endif /* DEBUG_sunlover */
5221
5222	while (h-- > 0)
5223	{
5224	vga_draw_line (pThis, pbDst, pbSrc, w);
5225	pbDst += cbLineDst;
5226	pbSrc += cbLineSrc;
5227	}
5228
5229	PDMCritSectLeave(&pThis->CritSect);
5230	#ifdef DEBUG_sunlover
5231	LogFlow(("vgaPortUpdateDisplayRect: completed.\n"));
5232	#endif /* DEBUG_sunlover */
5233	}
5234
5235
5236	static DECLCALLBACK(int)
5237	vgaPortCopyRect(PPDMIDISPLAYPORT pInterface,
5238	uint32_t cx,
5239	uint32_t cy,
5240	const uint8_t *pbSrc, int32_t xSrc, int32_t ySrc, uint32_t cxSrc, uint32_t cySrc,
5241	uint32_t cbSrcLine, uint32_t cSrcBitsPerPixel,
5242	uint8_t *pbDst, int32_t xDst, int32_t yDst, uint32_t cxDst, uint32_t cyDst,
5243	uint32_t cbDstLine, uint32_t cDstBitsPerPixel)
5244	{
5245	uint32_t v;
5246	vga_draw_line_func *vga_draw_line;
5247
5248	#ifdef DEBUG_sunlover
5249	LogFlow(("vgaPortCopyRect: %d,%d %dx%d -> %d,%d\n", xSrc, ySrc, cx, cy, xDst, yDst));
5250	#endif /* DEBUG_sunlover */
5251
5252	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
5253
5254	Assert(pInterface);
5255	Assert(pThis->pDrv);
5256
5257	int32_t xSrcCorrected = xSrc;
5258	int32_t ySrcCorrected = ySrc;
5259	uint32_t cxCorrected = cx;
5260	uint32_t cyCorrected = cy;
5261
5262	/* Correct source coordinates to be within the source bitmap. */
5263	if (xSrcCorrected < 0)
5264	{
5265	xSrcCorrected += cxCorrected; /* Compute xRight which is also the new width. */
5266	cxCorrected = (xSrcCorrected < 0) ? 0 : xSrcCorrected;
5267	xSrcCorrected = 0;
5268	}
5269
5270	if (ySrcCorrected < 0)
5271	{
5272	ySrcCorrected += cyCorrected; /* Compute yBottom, which is also the new height. */
5273	cyCorrected = (ySrcCorrected < 0) ? 0 : ySrcCorrected;
5274	ySrcCorrected = 0;
5275	}
5276
5277	/* Also check if coords are greater than the display resolution. */
5278	if (xSrcCorrected + cxCorrected > cxSrc)
5279	{
5280	/* xSrcCorrected < 0 is not possible here */
5281	cxCorrected = cxSrc > (uint32_t)xSrcCorrected ? cxSrc - xSrcCorrected : 0;
5282	}
5283
5284	if (ySrcCorrected + cyCorrected > cySrc)
5285	{
5286	/* y < 0 is not possible here */
5287	cyCorrected = cySrc > (uint32_t)ySrcCorrected ? cySrc - ySrcCorrected : 0;
5288	}
5289
5290	#ifdef DEBUG_sunlover
5291	LogFlow(("vgaPortCopyRect: %d,%d %dx%d (corrected coords)\n", xSrcCorrected, ySrcCorrected, cxCorrected, cyCorrected));
5292	#endif /* DEBUG_sunlover */
5293
5294	/* Check if there is something to do at all. */
5295	if (cxCorrected == 0 \|\| cyCorrected == 0)
5296	{
5297	/* Empty rectangle. */
5298	#ifdef DEBUG_sunlover
5299	LogFlow(("vgaPortUpdateDisplayRectEx: nothing to do: %dx%d\n", cxCorrected, cyCorrected));
5300	#endif /* DEBUG_sunlover */
5301	return VINF_SUCCESS;
5302	}
5303
5304	/* Check that the corrected source rectangle is within the destination.
5305	* Note: source rectangle is adjusted, but the target must be large enough.
5306	*/
5307	if ( xDst < 0
5308	\|\| yDst < 0
5309	\|\| xDst + cxCorrected > cxDst
5310	\|\| yDst + cyCorrected > cyDst)
5311	{
5312	return VERR_INVALID_PARAMETER;
5313	}
5314
5315	int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
5316	AssertRC(rc);
5317
5318	/* This method only works if the VGA device is in a VBE mode or not paused VBVA mode.
5319	* VGA modes are reported to the caller by returning VERR_INVALID_STATE.
5320	*
5321	* If VBE_DISPI_ENABLED is set, then it is a VBE or VBE compatible VBVA mode. Both of them can be handled.
5322	*
5323	* If VBE_DISPI_ENABLED is clear, then it is either a VGA mode or a VBVA mode set by guest additions
5324	* which have VBVACAPS_USE_VBVA_ONLY capability.
5325	* When VBE_DISPI_ENABLED is being cleared and VBVACAPS_USE_VBVA_ONLY is not set (i.e. guest wants a VGA mode),
5326	* then VBVAOnVBEChanged makes sure that VBVA is paused.
5327	* That is a not paused VBVA means that the video mode can be handled even if VBE_DISPI_ENABLED is clear.
5328	*/
5329	if ( (pThis->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) == 0
5330	&& VBVAIsPaused(pThis)
5331	&& !pThis->svga.fEnabled)
5332	{
5333	PDMCritSectLeave(&pThis->CritSect);
5334	return VERR_INVALID_STATE;
5335	}
5336
5337	/* Choose the rendering function. */
5338	switch (cSrcBitsPerPixel)
5339	{
5340	default:
5341	case 0:
5342	/* Nothing to do, just return. */
5343	PDMCritSectLeave(&pThis->CritSect);
5344	return VINF_SUCCESS;
5345	case 8:
5346	v = VGA_DRAW_LINE8;
5347	break;
5348	case 15:
5349	v = VGA_DRAW_LINE15;
5350	break;
5351	case 16:
5352	v = VGA_DRAW_LINE16;
5353	break;
5354	case 24:
5355	v = VGA_DRAW_LINE24;
5356	break;
5357	case 32:
5358	v = VGA_DRAW_LINE32;
5359	break;
5360	}
5361
5362	vga_draw_line = vga_draw_line_table[v * 4 + get_depth_index(cDstBitsPerPixel)];
5363
5364	/* Compute source and destination addresses and pitches. */
5365	uint32_t cbPixelDst = (cDstBitsPerPixel + 7) / 8;
5366	uint32_t cbLineDst = cbDstLine;
5367	uint8_t pbDstCur = pbDst + yDst cbLineDst + xDst * cbPixelDst;
5368
5369	uint32_t cbPixelSrc = (cSrcBitsPerPixel + 7) / 8;
5370	uint32_t cbLineSrc = cbSrcLine;
5371	const uint8_t pbSrcCur = pbSrc + ySrcCorrected cbLineSrc + xSrcCorrected * cbPixelSrc;
5372
5373	#ifdef DEBUG_sunlover
5374	LogFlow(("vgaPortCopyRect: dst: %p, %d, %d. src: %p, %d, %d\n", pbDstCur, cbLineDst, cbPixelDst, pbSrcCur, cbLineSrc, cbPixelSrc));
5375	#endif /* DEBUG_sunlover */
5376
5377	while (cyCorrected-- > 0)
5378	{
5379	vga_draw_line(pThis, pbDstCur, pbSrcCur, cxCorrected);
5380	pbDstCur += cbLineDst;
5381	pbSrcCur += cbLineSrc;
5382	}
5383
5384	PDMCritSectLeave(&pThis->CritSect);
5385	#ifdef DEBUG_sunlover
5386	LogFlow(("vgaPortCopyRect: completed.\n"));
5387	#endif /* DEBUG_sunlover */
5388
5389	return VINF_SUCCESS;
5390	}
5391
5392	static DECLCALLBACK(void) vgaPortSetRenderVRAM(PPDMIDISPLAYPORT pInterface, bool fRender)
5393	{
5394	PVGASTATE pThis = IDISPLAYPORT_2_VGASTATE(pInterface);
5395
5396	LogFlow(("vgaPortSetRenderVRAM: fRender = %d\n", fRender));
5397
5398	int rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
5399	AssertRC(rc);
5400
5401	pThis->fRenderVRAM = fRender;
5402
5403	PDMCritSectLeave(&pThis->CritSect);
5404	}
5405
5406
5407	static DECLCALLBACK(void) vgaTimerRefresh(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
5408	{
5409	PVGASTATE pThis = (PVGASTATE)pvUser;
5410	NOREF(pDevIns);
5411
5412	if (pThis->fScanLineCfg & VBVASCANLINECFG_ENABLE_VSYNC_IRQ)
5413	{
5414	VBVARaiseIrq(pThis, HGSMIHOSTFLAGS_VSYNC);
5415	}
5416
5417	if (pThis->pDrv)
5418	pThis->pDrv->pfnRefresh(pThis->pDrv);
5419
5420	if (pThis->cMilliesRefreshInterval)
5421	TMTimerSetMillies(pTimer, pThis->cMilliesRefreshInterval);
5422
5423	#ifdef VBOX_WITH_VIDEOHWACCEL
5424	vbvaTimerCb(pThis);
5425	#endif
5426
5427	#ifdef VBOX_WITH_CRHGSMI
5428	vboxCmdVBVATimerRefresh(pThis);
5429	#endif
5430	}
5431
5432	#ifdef VBOX_WITH_VMSVGA
5433	int vgaR3RegisterVRAMHandler(PVGASTATE pVGAState, uint64_t cbFrameBuffer)
5434	{
5435	PPDMDEVINS pDevIns = pVGAState->pDevInsR3;
5436	Assert(pVGAState->GCPhysVRAM);
5437
5438	int rc = PGMHandlerPhysicalRegister(PDMDevHlpGetVM(pDevIns),
5439	pVGAState->GCPhysVRAM, pVGAState->GCPhysVRAM + (cbFrameBuffer - 1),
5440	pVGAState->hLfbAccessHandlerType, pVGAState, pDevIns->pvInstanceDataR0,
5441	pDevIns->pvInstanceDataRC, "VGA LFB");
5442
5443	AssertRC(rc);
5444	return rc;
5445	}
5446
5447	int vgaR3UnregisterVRAMHandler(PVGASTATE pVGAState)
5448	{
5449	PPDMDEVINS pDevIns = pVGAState->pDevInsR3;
5450
5451	Assert(pVGAState->GCPhysVRAM);
5452	int rc = PGMHandlerPhysicalDeregister(PDMDevHlpGetVM(pDevIns), pVGAState->GCPhysVRAM);
5453	AssertRC(rc);
5454	return rc;
5455	}
5456	#endif
5457
5458	/* -=-=-=-=-=- Ring 3: PCI Device -=-=-=-=-=- */
5459
5460	/**
5461	* @callback_method_impl{FNPCIIOREGIONMAP, Mapping/unmapping the VRAM MMI2 region}
5462	*/
5463	static DECLCALLBACK(int) vgaR3IORegionMap(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion,
5464	RTGCPHYS GCPhysAddress, RTGCPHYS cb, PCIADDRESSSPACE enmType)
5465	{
5466	RT_NOREF1(cb);
5467	int rc;
5468	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5469	Log(("vgaR3IORegionMap: iRegion=%d GCPhysAddress=%RGp cb=%RGp enmType=%d\n", iRegion, GCPhysAddress, cb, enmType));
5470	#ifdef VBOX_WITH_VMSVGA
5471	AssertReturn( iRegion == pThis->pciRegions.iVRAM
5472	&& enmType == (pThis->fVMSVGAEnabled ? PCI_ADDRESS_SPACE_MEM : PCI_ADDRESS_SPACE_MEM_PREFETCH),
5473	VERR_INTERNAL_ERROR);
5474	#else
5475	AssertReturn(iRegion == pThis->pciRegions.iVRAM && enmType == PCI_ADDRESS_SPACE_MEM_PREFETCH, VERR_INTERNAL_ERROR);
5476	#endif
5477
5478	rc = PDMCritSectEnter(&pThis->CritSect, VERR_SEM_BUSY);
5479	AssertRC(rc);
5480
5481	if (GCPhysAddress != NIL_RTGCPHYS)
5482	{
5483	/*
5484	* Mapping the VRAM.
5485	*/
5486	rc = PDMDevHlpMMIOExMap(pDevIns, pPciDev, iRegion, GCPhysAddress);
5487	AssertRC(rc);
5488	if (RT_SUCCESS(rc))
5489	{
5490	rc = PGMHandlerPhysicalRegister(PDMDevHlpGetVM(pDevIns), GCPhysAddress, GCPhysAddress + (pThis->vram_size - 1),
5491	pThis->hLfbAccessHandlerType, pThis, pDevIns->pvInstanceDataR0,
5492	pDevIns->pvInstanceDataRC, "VGA LFB");
5493	AssertRC(rc);
5494	if (RT_SUCCESS(rc))
5495	{
5496	pThis->GCPhysVRAM = GCPhysAddress;
5497	pThis->vbe_regs[VBE_DISPI_INDEX_FB_BASE_HI] = GCPhysAddress >> 16;
5498	}
5499	}
5500	}
5501	else
5502	{
5503	/*
5504	* Unmapping of the VRAM in progress.
5505	* Deregister the access handler so PGM doesn't get upset.
5506	*/
5507	Assert(pThis->GCPhysVRAM);
5508	#ifdef VBOX_WITH_VMSVGA
5509	Assert(!pThis->svga.fEnabled \|\| !pThis->svga.fVRAMTracking);
5510	if ( !pThis->svga.fEnabled
5511	\|\| ( pThis->svga.fEnabled
5512	&& pThis->svga.fVRAMTracking
5513	)
5514	)
5515	{
5516	#endif
5517	rc = PGMHandlerPhysicalDeregister(PDMDevHlpGetVM(pDevIns), pThis->GCPhysVRAM);
5518	AssertRC(rc);
5519	#ifdef VBOX_WITH_VMSVGA
5520	}
5521	else
5522	rc = VINF_SUCCESS;
5523	#endif
5524	pThis->GCPhysVRAM = 0;
5525	/* NB: VBE_DISPI_INDEX_FB_BASE_HI is left unchanged here. */
5526	}
5527	PDMCritSectLeave(&pThis->CritSect);
5528	return rc;
5529	}
5530
5531
5532	#ifdef VBOX_WITH_VMSVGA /* Currently not needed in the non-VMSVGA mode, but keeping it flexible for later. */
5533	/**
5534	* @interface_method_impl{PDMPCIDEV,pfnRegionLoadChangeHookR3}
5535	*/
5536	static DECLCALLBACK(int) vgaR3PciRegionLoadChangeHook(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion,
5537	uint64_t cbRegion, PCIADDRESSSPACE enmType,
5538	PFNPCIIOREGIONOLDSETTER pfnOldSetter)
5539	{
5540	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5541
5542	# ifdef VBOX_WITH_VMSVGA
5543	/*
5544	* The VMSVGA changed the default FIFO size from 128KB to 2MB after 5.1.
5545	*/
5546	if (pThis->fVMSVGAEnabled)
5547	{
5548	if (iRegion == pThis->pciRegions.iFIFO)
5549	{
5550	/* Make sure it's still 32-bit memory. Ignore fluxtuations in the prefetch flag */
5551	AssertLogRelMsgReturn(!(enmType & (PCI_ADDRESS_SPACE_IO \| PCI_ADDRESS_SPACE_BAR64)), ("enmType=%#x\n", enmType),
5552	VERR_VGA_UNEXPECTED_PCI_REGION_LOAD_CHANGE);
5553
5554	/* If the size didn't change we're fine, so just return already. */
5555	if (cbRegion == pThis->svga.cbFIFO)
5556	return VINF_SUCCESS;
5557
5558	/* If the size is larger than the current configuration, refuse to load. */
5559	AssertLogRelMsgReturn(cbRegion <= pThis->svga.cbFIFOConfig,
5560	("cbRegion=%#RGp cbFIFOConfig=%#x cbFIFO=%#x\n",
5561	cbRegion, pThis->svga.cbFIFOConfig, pThis->svga.cbFIFO),
5562	VERR_SSM_LOAD_CONFIG_MISMATCH);
5563
5564	/* Adjust the size down. */
5565	int rc = PDMDevHlpMMIOExReduce(pDevIns, pPciDev, iRegion, cbRegion);
5566	AssertLogRelMsgRCReturn(rc,
5567	("cbRegion=%#RGp cbFIFOConfig=%#x cbFIFO=%#x: %Rrc\n",
5568	cbRegion, pThis->svga.cbFIFOConfig, pThis->svga.cbFIFO, rc),
5569	rc);
5570	pThis->svga.cbFIFO = cbRegion;
5571	return rc;
5572
5573	}
5574	/* Emulate callbacks for 5.1 and older saved states by recursion. */
5575	else if (iRegion == UINT32_MAX)
5576	{
5577	int rc = vgaR3PciRegionLoadChangeHook(pDevIns, pPciDev, pThis->pciRegions.iFIFO, VMSVGA_FIFO_SIZE_OLD, PCI_ADDRESS_SPACE_MEM, NULL);
5578	if (RT_SUCCESS(rc))
5579	rc = pfnOldSetter(pPciDev, pThis->pciRegions.iFIFO, VMSVGA_FIFO_SIZE_OLD, PCI_ADDRESS_SPACE_MEM);
5580	return rc;
5581	}
5582	}
5583	# endif /* VBOX_WITH_VMSVGA */
5584
5585	return VERR_VGA_UNEXPECTED_PCI_REGION_LOAD_CHANGE;
5586	}
5587	#endif /* VBOX_WITH_VMSVGA */
5588
5589
5590	/* -=-=-=-=-=- Ring3: Misc Wrappers & Sidekicks -=-=-=-=-=- */
5591
5592	/**
5593	* Saves a important bits of the VGA device config.
5594	*
5595	* @param pThis The VGA instance data.
5596	* @param pSSM The saved state handle.
5597	*/
5598	static void vgaR3SaveConfig(PVGASTATE pThis, PSSMHANDLE pSSM)
5599	{
5600	SSMR3PutU32(pSSM, pThis->vram_size);
5601	SSMR3PutU32(pSSM, pThis->cMonitors);
5602	}
5603
5604
5605	/**
5606	* @callback_method_impl{FNSSMDEVLIVEEXEC}
5607	*/
5608	static DECLCALLBACK(int) vgaR3LiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
5609	{
5610	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5611	Assert(uPass == 0); NOREF(uPass);
5612	vgaR3SaveConfig(pThis, pSSM);
5613	return VINF_SSM_DONT_CALL_AGAIN;
5614	}
5615
5616
5617	/**
5618	* @callback_method_impl{FNSSMDEVSAVEPREP}
5619	*/
5620	static DECLCALLBACK(int) vgaR3SavePrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5621	{
5622	#ifdef VBOX_WITH_VIDEOHWACCEL
5623	RT_NOREF(pSSM);
5624	return vboxVBVASaveStatePrep(pDevIns);
5625	#else
5626	RT_NOREF(pDevIns, pSSM);
5627	return VINF_SUCCESS;
5628	#endif
5629	}
5630
5631	/**
5632	* @callback_method_impl{FNSSMDEVSAVEDONE}
5633	*/
5634	static DECLCALLBACK(int) vgaR3SaveDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5635	{
5636	#ifdef VBOX_WITH_VIDEOHWACCEL
5637	RT_NOREF(pSSM);
5638	return vboxVBVASaveStateDone(pDevIns);
5639	#else
5640	RT_NOREF(pDevIns, pSSM);
5641	return VINF_SUCCESS;
5642	#endif
5643	}
5644
5645	/**
5646	* @callback_method_impl{FNSSMDEVSAVEEXEC}
5647	*/
5648	static DECLCALLBACK(int) vgaR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5649	{
5650	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5651
5652	#ifdef VBOX_WITH_VDMA
5653	vboxVDMASaveStateExecPrep(pThis->pVdma);
5654	#endif
5655
5656	vgaR3SaveConfig(pThis, pSSM);
5657	vga_save(pSSM, PDMINS_2_DATA(pDevIns, PVGASTATE));
5658
5659	VGA_SAVED_STATE_PUT_MARKER(pSSM, 1);
5660	#ifdef VBOX_WITH_HGSMI
5661	SSMR3PutBool(pSSM, true);
5662	int rc = vboxVBVASaveStateExec(pDevIns, pSSM);
5663	#else
5664	int rc = SSMR3PutBool(pSSM, false);
5665	#endif
5666
5667	AssertRCReturn(rc, rc);
5668
5669	VGA_SAVED_STATE_PUT_MARKER(pSSM, 3);
5670	#ifdef VBOX_WITH_VDMA
5671	rc = SSMR3PutU32(pSSM, 1);
5672	AssertRCReturn(rc, rc);
5673	rc = vboxVDMASaveStateExecPerform(pThis->pVdma, pSSM);
5674	#else
5675	rc = SSMR3PutU32(pSSM, 0);
5676	#endif
5677	AssertRCReturn(rc, rc);
5678
5679	#ifdef VBOX_WITH_VDMA
5680	vboxVDMASaveStateExecDone(pThis->pVdma);
5681	#endif
5682
5683	VGA_SAVED_STATE_PUT_MARKER(pSSM, 5);
5684	#ifdef VBOX_WITH_VMSVGA
5685	if (pThis->fVMSVGAEnabled)
5686	{
5687	rc = vmsvgaSaveExec(pDevIns, pSSM);
5688	AssertRCReturn(rc, rc);
5689	}
5690	#endif
5691	VGA_SAVED_STATE_PUT_MARKER(pSSM, 6);
5692
5693	return rc;
5694	}
5695
5696
5697	/**
5698	* @copydoc FNSSMDEVLOADEXEC
5699	*/
5700	static DECLCALLBACK(int) vgaR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
5701	{
5702	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5703	int rc;
5704
5705	if (uVersion < VGA_SAVEDSTATE_VERSION_ANCIENT \|\| uVersion > VGA_SAVEDSTATE_VERSION)
5706	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
5707
5708	if (uVersion > VGA_SAVEDSTATE_VERSION_HGSMI)
5709	{
5710	/* Check the config */
5711	uint32_t cbVRam;
5712	rc = SSMR3GetU32(pSSM, &cbVRam);
5713	AssertRCReturn(rc, rc);
5714	if (pThis->vram_size != cbVRam)
5715	return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("VRAM size changed: config=%#x state=%#x"), pThis->vram_size, cbVRam);
5716
5717	uint32_t cMonitors;
5718	rc = SSMR3GetU32(pSSM, &cMonitors);
5719	AssertRCReturn(rc, rc);
5720	if (pThis->cMonitors != cMonitors)
5721	return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Monitor count changed: config=%u state=%u"), pThis->cMonitors, cMonitors);
5722	}
5723
5724	if (uPass == SSM_PASS_FINAL)
5725	{
5726	rc = vga_load(pSSM, pThis, uVersion);
5727	if (RT_FAILURE(rc))
5728	return rc;
5729
5730	/*
5731	* Restore the HGSMI state, if present.
5732	*/
5733	VGA_SAVED_STATE_GET_MARKER_RETURN_ON_MISMATCH(pSSM, uVersion, 1);
5734	bool fWithHgsmi = uVersion == VGA_SAVEDSTATE_VERSION_HGSMI;
5735	if (uVersion > VGA_SAVEDSTATE_VERSION_HGSMI)
5736	{
5737	rc = SSMR3GetBool(pSSM, &fWithHgsmi);
5738	AssertRCReturn(rc, rc);
5739	}
5740	if (fWithHgsmi)
5741	{
5742	#ifdef VBOX_WITH_HGSMI
5743	rc = vboxVBVALoadStateExec(pDevIns, pSSM, uVersion);
5744	AssertRCReturn(rc, rc);
5745	#else
5746	return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("HGSMI is not compiled in, but it is present in the saved state"));
5747	#endif
5748	}
5749
5750	VGA_SAVED_STATE_GET_MARKER_RETURN_ON_MISMATCH(pSSM, uVersion, 3);
5751	if (uVersion >= VGA_SAVEDSTATE_VERSION_3D)
5752	{
5753	uint32_t u32;
5754	rc = SSMR3GetU32(pSSM, &u32);
5755	if (u32)
5756	{
5757	#ifdef VBOX_WITH_VDMA
5758	if (u32 == 1)
5759	{
5760	rc = vboxVDMASaveLoadExecPerform(pThis->pVdma, pSSM, uVersion);
5761	AssertRCReturn(rc, rc);
5762	}
5763	else
5764	#endif
5765	{
5766	LogRel(("invalid CmdVbva version info\n"));
5767	return VERR_VERSION_MISMATCH;
5768	}
5769	}
5770	}
5771
5772	VGA_SAVED_STATE_GET_MARKER_RETURN_ON_MISMATCH(pSSM, uVersion, 5);
5773	#ifdef VBOX_WITH_VMSVGA
5774	if (pThis->fVMSVGAEnabled)
5775	{
5776	rc = vmsvgaLoadExec(pDevIns, pSSM, uVersion, uPass);
5777	AssertRCReturn(rc, rc);
5778	}
5779	#endif
5780	VGA_SAVED_STATE_GET_MARKER_RETURN_ON_MISMATCH(pSSM, uVersion, 6);
5781	}
5782	return VINF_SUCCESS;
5783	}
5784
5785
5786	/**
5787	* @copydoc FNSSMDEVLOADDONE
5788	*/
5789	static DECLCALLBACK(int) vgaR3LoadDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
5790	{
5791	RT_NOREF(pSSM);
5792	int rc = VINF_SUCCESS;
5793
5794	#ifdef VBOX_WITH_HGSMI
5795	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5796	rc = vboxVBVALoadStateDone(pDevIns);
5797	AssertRCReturn(rc, rc);
5798	# ifdef VBOX_WITH_VDMA
5799	rc = vboxVDMASaveLoadDone(pThis->pVdma);
5800	AssertRCReturn(rc, rc);
5801	# endif
5802	/* Now update the current VBVA state which depends on VBE registers. vboxVBVALoadStateDone cleared the state. */
5803	VBVAOnVBEChanged(pThis);
5804	#endif
5805	#ifdef VBOX_WITH_VMSVGA
5806	if (pThis->fVMSVGAEnabled)
5807	{
5808	rc = vmsvgaLoadDone(pDevIns);
5809	AssertRCReturn(rc, rc);
5810	}
5811	#endif
5812	return rc;
5813	}
5814
5815
5816	/* -=-=-=-=-=- Ring 3: Device callbacks -=-=-=-=-=- */
5817
5818	/**
5819	* @interface_method_impl{PDMDEVREG,pfnReset}
5820	*/
5821	static DECLCALLBACK(void) vgaR3Reset(PPDMDEVINS pDevIns)
5822	{
5823	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5824	char *pchStart;
5825	char *pchEnd;
5826	LogFlow(("vgaReset\n"));
5827
5828	if (pThis->pVdma)
5829	vboxVDMAReset(pThis->pVdma);
5830
5831	#ifdef VBOX_WITH_VMSVGA
5832	if (pThis->fVMSVGAEnabled)
5833	vmsvgaReset(pDevIns);
5834	#endif
5835
5836	#ifdef VBOX_WITH_HGSMI
5837	VBVAReset(pThis);
5838	#endif /* VBOX_WITH_HGSMI */
5839
5840
5841	/* Clear the VRAM ourselves. */
5842	if (pThis->vram_ptrR3 && pThis->vram_size)
5843	memset(pThis->vram_ptrR3, 0, pThis->vram_size);
5844
5845	/*
5846	* Zero most of it.
5847	*
5848	* Unlike vga_reset we're leaving out a few members which we believe
5849	* must remain unchanged....
5850	*/
5851	/* 1st part. */
5852	pchStart = (char *)&pThis->latch;
5853	pchEnd = (char *)&pThis->invalidated_y_table;
5854	memset(pchStart, 0, pchEnd - pchStart);
5855
5856	/* 2nd part. */
5857	pchStart = (char *)&pThis->last_palette;
5858	pchEnd = (char *)&pThis->u32Marker;
5859	memset(pchStart, 0, pchEnd - pchStart);
5860
5861
5862	/*
5863	* Restore and re-init some bits.
5864	*/
5865	pThis->get_bpp = vga_get_bpp;
5866	pThis->get_offsets = vga_get_offsets;
5867	pThis->get_resolution = vga_get_resolution;
5868	pThis->graphic_mode = -1; /* Force full update. */
5869	#ifdef CONFIG_BOCHS_VBE
5870	pThis->vbe_regs[VBE_DISPI_INDEX_ID] = VBE_DISPI_ID0;
5871	pThis->vbe_regs[VBE_DISPI_INDEX_VBOX_VIDEO] = 0;
5872	pThis->vbe_regs[VBE_DISPI_INDEX_FB_BASE_HI] = pThis->GCPhysVRAM >> 16;
5873	pThis->vbe_bank_max = (pThis->vram_size >> 16) - 1;
5874	#endif /* CONFIG_BOCHS_VBE */
5875
5876	/*
5877	* Reset the LFB mapping.
5878	*/
5879	pThis->fLFBUpdated = false;
5880	if ( ( pThis->fGCEnabled
5881	\|\| pThis->fR0Enabled)
5882	&& pThis->GCPhysVRAM
5883	&& pThis->GCPhysVRAM != NIL_RTGCPHYS)
5884	{
5885	int rc = PGMHandlerPhysicalReset(PDMDevHlpGetVM(pDevIns), pThis->GCPhysVRAM);
5886	AssertRC(rc);
5887	}
5888	if (pThis->fRemappedVGA)
5889	{
5890	IOMMMIOResetRegion(PDMDevHlpGetVM(pDevIns), 0x000a0000);
5891	pThis->fRemappedVGA = false;
5892	}
5893
5894	/*
5895	* Reset the logo data.
5896	*/
5897	pThis->LogoCommand = LOGO_CMD_NOP;
5898	pThis->offLogoData = 0;
5899
5900	/* notify port handler */
5901	if (pThis->pDrv)
5902	{
5903	PDMCritSectLeave(&pThis->CritSect); /* hack around lock order issue. */
5904	pThis->pDrv->pfnReset(pThis->pDrv);
5905	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
5906	}
5907
5908	/* Reset latched access mask. */
5909	pThis->uMaskLatchAccess = 0x3ff;
5910	pThis->cLatchAccesses = 0;
5911	pThis->u64LastLatchedAccess = 0;
5912	pThis->iMask = 0;
5913
5914	/* Reset retrace emulation. */
5915	memset(&pThis->retrace_state, 0, sizeof(pThis->retrace_state));
5916	}
5917
5918
5919	/**
5920	* @interface_method_impl{PDMDEVREG,pfnRelocate}
5921	*/
5922	static DECLCALLBACK(void) vgaR3Relocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
5923	{
5924	if (offDelta)
5925	{
5926	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5927	LogFlow(("vgaRelocate: offDelta = %08X\n", offDelta));
5928
5929	pThis->vram_ptrRC += offDelta;
5930	pThis->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
5931	}
5932	}
5933
5934
5935	/**
5936	* @interface_method_impl{PDMDEVREG,pfnAttach}
5937	*
5938	* This is like plugging in the monitor after turning on the PC.
5939	*/
5940	static DECLCALLBACK(int) vgaAttach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
5941	{
5942	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
5943
5944	AssertMsgReturn(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG,
5945	("VGA device does not support hotplugging\n"),
5946	VERR_INVALID_PARAMETER);
5947
5948	switch (iLUN)
5949	{
5950	/* LUN #0: Display port. */
5951	case 0:
5952	{
5953	int rc = PDMDevHlpDriverAttach(pDevIns, iLUN, &pThis->IBase, &pThis->pDrvBase, "Display Port");
5954	if (RT_SUCCESS(rc))
5955	{
5956	pThis->pDrv = PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMIDISPLAYCONNECTOR);
5957	if (pThis->pDrv)
5958	{
5959	/* pThis->pDrv->pbData can be NULL when there is no framebuffer. */
5960	if ( pThis->pDrv->pfnRefresh
5961	&& pThis->pDrv->pfnResize
5962	&& pThis->pDrv->pfnUpdateRect)
5963	rc = VINF_SUCCESS;
5964	else
5965	{
5966	Assert(pThis->pDrv->pfnRefresh);
5967	Assert(pThis->pDrv->pfnResize);
5968	Assert(pThis->pDrv->pfnUpdateRect);
5969	pThis->pDrv = NULL;
5970	pThis->pDrvBase = NULL;
5971	rc = VERR_INTERNAL_ERROR;
5972	}
5973	#ifdef VBOX_WITH_VIDEOHWACCEL
5974	if(rc == VINF_SUCCESS)
5975	{
5976	rc = vbvaVHWAConstruct(pThis);
5977	if (rc != VERR_NOT_IMPLEMENTED)
5978	AssertRC(rc);
5979	}
5980	#endif
5981	}
5982	else
5983	{
5984	AssertMsgFailed(("LUN #0 doesn't have a display connector interface! rc=%Rrc\n", rc));
5985	pThis->pDrvBase = NULL;
5986	rc = VERR_PDM_MISSING_INTERFACE;
5987	}
5988	}
5989	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
5990	{
5991	Log(("%s/%d: warning: no driver attached to LUN #0!\n", pDevIns->pReg->szName, pDevIns->iInstance));
5992	rc = VINF_SUCCESS;
5993	}
5994	else
5995	AssertLogRelMsgFailed(("Failed to attach LUN #0! rc=%Rrc\n", rc));
5996	return rc;
5997	}
5998
5999	default:
6000	AssertMsgFailed(("Invalid LUN #%d\n", iLUN));
6001	return VERR_PDM_NO_SUCH_LUN;
6002	}
6003	}
6004
6005
6006	/**
6007	* @interface_method_impl{PDMDEVREG,pfnDetach}
6008	*
6009	* This is like unplugging the monitor while the PC is still running.
6010	*/
6011	static DECLCALLBACK(void) vgaDetach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
6012	{
6013	RT_NOREF1(fFlags);
6014	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
6015	AssertMsg(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG, ("VGA device does not support hotplugging\n"));
6016
6017	/*
6018	* Reset the interfaces and update the controller state.
6019	*/
6020	switch (iLUN)
6021	{
6022	/* LUN #0: Display port. */
6023	case 0:
6024	pThis->pDrv = NULL;
6025	pThis->pDrvBase = NULL;
6026	break;
6027
6028	default:
6029	AssertMsgFailed(("Invalid LUN #%d\n", iLUN));
6030	break;
6031	}
6032	}
6033
6034
6035	/**
6036	* @interface_method_impl{PDMDEVREG,pfnDestruct}
6037	*/
6038	static DECLCALLBACK(int) vgaR3Destruct(PPDMDEVINS pDevIns)
6039	{
6040	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
6041
6042	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
6043	LogFlow(("vgaR3Destruct:\n"));
6044
6045	# ifdef VBOX_WITH_VDMA
6046	if (pThis->pVdma)
6047	vboxVDMADestruct(pThis->pVdma);
6048	# endif
6049
6050	#ifdef VBOX_WITH_VMSVGA
6051	if (pThis->fVMSVGAEnabled)
6052	vmsvgaDestruct(pDevIns);
6053	#endif
6054
6055	#ifdef VBOX_WITH_HGSMI
6056	VBVADestroy(pThis);
6057	#endif
6058
6059	/*
6060	* Free MM heap pointers.
6061	*/
6062	if (pThis->pbVBEExtraData)
6063	{
6064	PDMDevHlpMMHeapFree(pDevIns, pThis->pbVBEExtraData);
6065	pThis->pbVBEExtraData = NULL;
6066	}
6067	if (pThis->pbVgaBios)
6068	{
6069	PDMDevHlpMMHeapFree(pDevIns, pThis->pbVgaBios);
6070	pThis->pbVgaBios = NULL;
6071	}
6072
6073	if (pThis->pszVgaBiosFile)
6074	{
6075	MMR3HeapFree(pThis->pszVgaBiosFile);
6076	pThis->pszVgaBiosFile = NULL;
6077	}
6078
6079	if (pThis->pszLogoFile)
6080	{
6081	MMR3HeapFree(pThis->pszLogoFile);
6082	pThis->pszLogoFile = NULL;
6083	}
6084
6085	if (pThis->pbLogo)
6086	{
6087	PDMDevHlpMMHeapFree(pDevIns, pThis->pbLogo);
6088	pThis->pbLogo = NULL;
6089	}
6090
6091	PDMR3CritSectDelete(&pThis->CritSectIRQ);
6092	PDMR3CritSectDelete(&pThis->CritSect);
6093	return VINF_SUCCESS;
6094	}
6095
6096
6097	/**
6098	* Adjust VBE mode information
6099	*
6100	* Depending on the configured VRAM size, certain parts of VBE mode
6101	* information must be updated.
6102	*
6103	* @param pThis The device instance data.
6104	* @param pMode The mode information structure.
6105	*/
6106	static void vgaAdjustModeInfo(PVGASTATE pThis, ModeInfoListItem *pMode)
6107	{
6108	int maxPage;
6109	int bpl;
6110
6111
6112	/* For 4bpp modes, the planes are "stacked" on top of each other. */
6113	bpl = pMode->info.BytesPerScanLine * pMode->info.NumberOfPlanes;
6114	/* The "number of image pages" is really the max page index... */
6115	maxPage = pThis->vram_size / (pMode->info.YResolution * bpl) - 1;
6116	Assert(maxPage >= 0);
6117	if (maxPage > 255)
6118	maxPage = 255; /* 8-bit value. */
6119	pMode->info.NumberOfImagePages = maxPage;
6120	pMode->info.LinNumberOfPages = maxPage;
6121	}
6122
6123
6124	/**
6125	* @interface_method_impl{PDMDEVREG,pfnConstruct}
6126	*/
6127	static DECLCALLBACK(int) vgaR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
6128	{
6129
6130	static bool s_fExpandDone = false;
6131	int rc;
6132	unsigned i;
6133	uint32_t cCustomModes;
6134	uint32_t cyReduction;
6135	uint32_t cbPitch;
6136	PVBEHEADER pVBEDataHdr;
6137	ModeInfoListItem *pCurMode;
6138	unsigned cb;
6139	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
6140	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
6141	PVM pVM = PDMDevHlpGetVM(pDevIns);
6142
6143	Assert(iInstance == 0);
6144	Assert(pVM);
6145
6146	/*
6147	* Init static data.
6148	*/
6149	if (!s_fExpandDone)
6150	{
6151	s_fExpandDone = true;
6152	vga_init_expand();
6153	}
6154
6155	/*
6156	* Validate configuration.
6157	*/
6158	if (!CFGMR3AreValuesValid(pCfg, "VRamSize\0"
6159	"MonitorCount\0"
6160	"GCEnabled\0"
6161	"R0Enabled\0"
6162	"FadeIn\0"
6163	"FadeOut\0"
6164	"LogoTime\0"
6165	"LogoFile\0"
6166	"ShowBootMenu\0"
6167	"BiosRom\0"
6168	"RealRetrace\0"
6169	"CustomVideoModes\0"
6170	"HeightReduction\0"
6171	"CustomVideoMode1\0"
6172	"CustomVideoMode2\0"
6173	"CustomVideoMode3\0"
6174	"CustomVideoMode4\0"
6175	"CustomVideoMode5\0"
6176	"CustomVideoMode6\0"
6177	"CustomVideoMode7\0"
6178	"CustomVideoMode8\0"
6179	"CustomVideoMode9\0"
6180	"CustomVideoMode10\0"
6181	"CustomVideoMode11\0"
6182	"CustomVideoMode12\0"
6183	"CustomVideoMode13\0"
6184	"CustomVideoMode14\0"
6185	"CustomVideoMode15\0"
6186	"CustomVideoMode16\0"
6187	"MaxBiosXRes\0"
6188	"MaxBiosYRes\0"
6189	#ifdef VBOX_WITH_VMSVGA
6190	"VMSVGAEnabled\0"
6191	"VMSVGAPciId\0"
6192	"VMSVGAPciBarLayout\0"
6193	"VMSVGAFifoSize\0"
6194	#endif
6195	#ifdef VBOX_WITH_VMSVGA3D
6196	"VMSVGA3dEnabled\0"
6197	#endif
6198	"SuppressNewYearSplash\0"
6199	"3DEnabled\0"
6200	))
6201	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
6202	N_("Invalid configuration for vga device"));
6203
6204	/*
6205	* Init state data.
6206	*/
6207	rc = CFGMR3QueryU32Def(pCfg, "VRamSize", &pThis->vram_size, VGA_VRAM_DEFAULT);
6208	AssertLogRelRCReturn(rc, rc);
6209	if (pThis->vram_size > VGA_VRAM_MAX)
6210	return PDMDevHlpVMSetError(pDevIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
6211	"VRamSize is too large, %#x, max %#x", pThis->vram_size, VGA_VRAM_MAX);
6212	if (pThis->vram_size < VGA_VRAM_MIN)
6213	return PDMDevHlpVMSetError(pDevIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
6214	"VRamSize is too small, %#x, max %#x", pThis->vram_size, VGA_VRAM_MIN);
6215	if (pThis->vram_size & (_256K - 1)) /* Make sure there are no partial banks even in planar modes. */
6216	return PDMDevHlpVMSetError(pDevIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
6217	"VRamSize is not a multiple of 256K (%#x)", pThis->vram_size);
6218
6219	rc = CFGMR3QueryU32Def(pCfg, "MonitorCount", &pThis->cMonitors, 1);
6220	AssertLogRelRCReturn(rc, rc);
6221
6222	rc = CFGMR3QueryBoolDef(pCfg, "GCEnabled", &pThis->fGCEnabled, true);
6223	AssertLogRelRCReturn(rc, rc);
6224
6225	rc = CFGMR3QueryBoolDef(pCfg, "R0Enabled", &pThis->fR0Enabled, true);
6226	AssertLogRelRCReturn(rc, rc);
6227	Log(("VGA: VRamSize=%#x fGCenabled=%RTbool fR0Enabled=%RTbool\n", pThis->vram_size, pThis->fGCEnabled, pThis->fR0Enabled));
6228
6229	rc = CFGMR3QueryBoolDef(pCfg, "3DEnabled", &pThis->f3DEnabled, false);
6230	AssertLogRelRCReturn(rc, rc);
6231	Log(("VGA: f3DEnabled=%RTbool\n", pThis->f3DEnabled));
6232
6233	#ifdef VBOX_WITH_VMSVGA
6234	rc = CFGMR3QueryBoolDef(pCfg, "VMSVGAEnabled", &pThis->fVMSVGAEnabled, false);
6235	AssertLogRelRCReturn(rc, rc);
6236	Log(("VMSVGA: VMSVGAEnabled = %d\n", pThis->fVMSVGAEnabled));
6237
6238	rc = CFGMR3QueryBoolDef(pCfg, "VMSVGAPciId", &pThis->fVMSVGAPciId, false);
6239	AssertLogRelRCReturn(rc, rc);
6240	Log(("VMSVGA: VMSVGAPciId = %d\n", pThis->fVMSVGAPciId));
6241
6242	rc = CFGMR3QueryBoolDef(pCfg, "VMSVGAPciBarLayout", &pThis->fVMSVGAPciBarLayout, false);
6243	AssertLogRelRCReturn(rc, rc);
6244	Log(("VMSVGA: VMSVGAPciBarLayout = %d\n", pThis->fVMSVGAPciBarLayout));
6245
6246	rc = CFGMR3QueryU32Def(pCfg, "VMSVGAFifoSize", &pThis->svga.cbFIFO, VMSVGA_FIFO_SIZE);
6247	AssertLogRelRCReturn(rc, rc);
6248	AssertLogRelMsgReturn(pThis->svga.cbFIFO >= _128K, ("cbFIFO=%#x\n", pThis->svga.cbFIFO), VERR_OUT_OF_RANGE);
6249	AssertLogRelMsgReturn(pThis->svga.cbFIFO <= _16M, ("cbFIFO=%#x\n", pThis->svga.cbFIFO), VERR_OUT_OF_RANGE);
6250	AssertLogRelMsgReturn(RT_IS_POWER_OF_TWO(pThis->svga.cbFIFO), ("cbFIFO=%#x\n", pThis->svga.cbFIFO), VERR_NOT_POWER_OF_TWO);
6251	pThis->svga.cbFIFOConfig = pThis->svga.cbFIFO;
6252	Log(("VMSVGA: VMSVGAFifoSize = %#x (%'u)\n", pThis->svga.cbFIFO, pThis->svga.cbFIFO));
6253	#endif
6254	#ifdef VBOX_WITH_VMSVGA3D
6255	rc = CFGMR3QueryBoolDef(pCfg, "VMSVGA3dEnabled", &pThis->svga.f3DEnabled, false);
6256	AssertLogRelRCReturn(rc, rc);
6257	Log(("VMSVGA: VMSVGA3dEnabled = %d\n", pThis->svga.f3DEnabled));
6258	#endif
6259
6260
6261	#ifdef VBOX_WITH_VMSVGA
6262	if (pThis->fVMSVGAPciBarLayout)
6263	{
6264	pThis->pciRegions.iIO = 0;
6265	pThis->pciRegions.iVRAM = 1;
6266	pThis->pciRegions.iFIFO = 2;
6267	}
6268	else
6269	{
6270	pThis->pciRegions.iVRAM = 0;
6271	pThis->pciRegions.iIO = 1;
6272	pThis->pciRegions.iFIFO = 2;
6273	}
6274	#else
6275	pThis->pciRegions.iVRAM = 0;
6276	#endif
6277
6278	pThis->pDevInsR3 = pDevIns;
6279	pThis->pDevInsR0 = PDMDEVINS_2_R0PTR(pDevIns);
6280	pThis->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
6281
6282	vgaR3Reset(pDevIns);
6283
6284	/* The PCI devices configuration. */
6285	#ifdef VBOX_WITH_VMSVGA
6286	if (pThis->fVMSVGAEnabled)
6287	{
6288	/* Extend our VGA device with VMWare SVGA functionality. */
6289	if (pThis->fVMSVGAPciId)
6290	{
6291	PCIDevSetVendorId(&pThis->Dev, PCI_VENDOR_ID_VMWARE);
6292	PCIDevSetDeviceId(&pThis->Dev, PCI_DEVICE_ID_VMWARE_SVGA2);
6293	}
6294	else
6295	{
6296	PCIDevSetVendorId(&pThis->Dev, 0x80ee); /* PCI vendor, just a free bogus value */
6297	PCIDevSetDeviceId(&pThis->Dev, 0xbeef);
6298	}
6299	PCIDevSetSubSystemVendorId(&pThis->Dev, PCI_VENDOR_ID_VMWARE);
6300	PCIDevSetSubSystemId(&pThis->Dev, PCI_DEVICE_ID_VMWARE_SVGA2);
6301	}
6302	else
6303	{
6304	#endif /* VBOX_WITH_VMSVGA */
6305	PCIDevSetVendorId(&pThis->Dev, 0x80ee); /* PCI vendor, just a free bogus value */
6306	PCIDevSetDeviceId(&pThis->Dev, 0xbeef);
6307	#ifdef VBOX_WITH_VMSVGA
6308	}
6309	#endif
6310	PCIDevSetClassSub( &pThis->Dev, 0x00); /* VGA controller */
6311	PCIDevSetClassBase( &pThis->Dev, 0x03);
6312	PCIDevSetHeaderType(&pThis->Dev, 0x00);
6313	#if defined(VBOX_WITH_HGSMI) && (defined(VBOX_WITH_VIDEOHWACCEL) \|\| defined(VBOX_WITH_VDMA) \|\| defined(VBOX_WITH_WDDM))
6314	PCIDevSetInterruptPin(&pThis->Dev, 1);
6315	#endif
6316
6317	/* the interfaces. */
6318	pThis->IBase.pfnQueryInterface = vgaPortQueryInterface;
6319
6320	pThis->IPort.pfnUpdateDisplay = vgaPortUpdateDisplay;
6321	pThis->IPort.pfnUpdateDisplayAll = vgaPortUpdateDisplayAll;
6322	pThis->IPort.pfnQueryVideoMode = vgaPortQueryVideoMode;
6323	pThis->IPort.pfnSetRefreshRate = vgaPortSetRefreshRate;
6324	pThis->IPort.pfnTakeScreenshot = vgaPortTakeScreenshot;
6325	pThis->IPort.pfnFreeScreenshot = vgaPortFreeScreenshot;
6326	pThis->IPort.pfnDisplayBlt = vgaPortDisplayBlt;
6327	pThis->IPort.pfnUpdateDisplayRect = vgaPortUpdateDisplayRect;
6328	pThis->IPort.pfnCopyRect = vgaPortCopyRect;
6329	pThis->IPort.pfnSetRenderVRAM = vgaPortSetRenderVRAM;
6330	#ifdef VBOX_WITH_VMSVGA
6331	pThis->IPort.pfnSetViewport = vmsvgaPortSetViewport;
6332	#else
6333	pThis->IPort.pfnSetViewport = NULL;
6334	#endif
6335	pThis->IPort.pfnSendModeHint = vbvaPortSendModeHint;
6336	pThis->IPort.pfnReportHostCursorCapabilities
6337	= vbvaPortReportHostCursorCapabilities;
6338	pThis->IPort.pfnReportHostCursorPosition
6339	= vbvaPortReportHostCursorPosition;
6340
6341	#if defined(VBOX_WITH_HGSMI)
6342	# if defined(VBOX_WITH_VIDEOHWACCEL)
6343	pThis->IVBVACallbacks.pfnVHWACommandCompleteAsync = vbvaVHWACommandCompleteAsync;
6344	# endif
6345	#if defined(VBOX_WITH_CRHGSMI)
6346	pThis->IVBVACallbacks.pfnCrHgsmiCommandCompleteAsync = vboxVDMACrHgsmiCommandCompleteAsync;
6347	pThis->IVBVACallbacks.pfnCrHgsmiControlCompleteAsync = vboxVDMACrHgsmiControlCompleteAsync;
6348
6349	pThis->IVBVACallbacks.pfnCrCtlSubmit = vboxCmdVBVACmdHostCtl;
6350	pThis->IVBVACallbacks.pfnCrCtlSubmitSync = vboxCmdVBVACmdHostCtlSync;
6351	# endif
6352	#endif
6353
6354	pThis->ILeds.pfnQueryStatusLed = vgaPortQueryStatusLed;
6355
6356	RT_ZERO(pThis->Led3D);
6357	pThis->Led3D.u32Magic = PDMLED_MAGIC;
6358
6359	/*
6360	* We use our own critical section to avoid unncessary pointer indirections
6361	* in interface methods (as well as for historical reasons).
6362	*/
6363	rc = PDMDevHlpCritSectInit(pDevIns, &pThis->CritSect, RT_SRC_POS, "VGA#%u", iInstance);
6364	AssertRCReturn(rc, rc);
6365	rc = PDMDevHlpSetDeviceCritSect(pDevIns, &pThis->CritSect);
6366	AssertRCReturn(rc, rc);
6367
6368	rc = PDMDevHlpCritSectInit(pDevIns, &pThis->CritSectIRQ, RT_SRC_POS, "VGA#%u_IRQ", iInstance);
6369	AssertRCReturn(rc, rc);
6370
6371	/*
6372	* PCI device registration.
6373	*/
6374	rc = PDMDevHlpPCIRegister(pDevIns, &pThis->Dev);
6375	if (RT_FAILURE(rc))
6376	return rc;
6377	/AssertMsg(pThis->Dev.uDevFn == 16 \|\| iInstance != 0, ("pThis->Dev.uDevFn=%d\n", pThis->Dev.uDevFn));/
6378	if (pThis->Dev.uDevFn != 16 && iInstance == 0)
6379	Log(("!!WARNING!!: pThis->dev.uDevFn=%d (ignore if testcase or not started by Main)\n", pThis->Dev.uDevFn));
6380
6381	#ifdef VBOX_WITH_VMSVGA
6382	if (pThis->fVMSVGAEnabled)
6383	{
6384	/* Register the io command ports. */
6385	rc = PDMDevHlpPCIIORegionRegister (pDevIns, pThis->pciRegions.iIO, 0x10, PCI_ADDRESS_SPACE_IO, vmsvgaR3IORegionMap);
6386	if (RT_FAILURE (rc))
6387	return rc;
6388	/* VMware's MetalKit doesn't like PCI_ADDRESS_SPACE_MEM_PREFETCH */
6389	rc = PDMDevHlpPCIIORegionRegister(pDevIns, pThis->pciRegions.iVRAM, pThis->vram_size,
6390	PCI_ADDRESS_SPACE_MEM /* PCI_ADDRESS_SPACE_MEM_PREFETCH */, vgaR3IORegionMap);
6391	if (RT_FAILURE(rc))
6392	return rc;
6393	rc = PDMDevHlpPCIIORegionRegister(pDevIns, pThis->pciRegions.iFIFO, pThis->svga.cbFIFO,
6394	PCI_ADDRESS_SPACE_MEM /* PCI_ADDRESS_SPACE_MEM_PREFETCH */, vmsvgaR3IORegionMap);
6395	if (RT_FAILURE(rc))
6396	return rc;
6397	pThis->Dev.pfnRegionLoadChangeHookR3 = vgaR3PciRegionLoadChangeHook;
6398	}
6399	else
6400	#endif /* VBOX_WITH_VMSVGA */
6401	{
6402	rc = PDMDevHlpPCIIORegionRegister(pDevIns, pThis->pciRegions.iVRAM, pThis->vram_size,
6403	PCI_ADDRESS_SPACE_MEM_PREFETCH, vgaR3IORegionMap);
6404	if (RT_FAILURE(rc))
6405	return rc;
6406	}
6407
6408	/*
6409	* Allocate the VRAM and map the first 512KB of it into GC so we can speed up VGA support.
6410	*/
6411	#ifdef VBOX_WITH_VMSVGA
6412	if (pThis->fVMSVGAEnabled)
6413	{
6414	/*
6415	* Allocate and initialize the FIFO MMIO2 memory.
6416	*/
6417	rc = PDMDevHlpMMIO2Register(pDevIns, &pThis->Dev, pThis->pciRegions.iFIFO, pThis->svga.cbFIFO,
6418	0 /fFlags/, (void **)&pThis->svga.pFIFOR3, "VMSVGA-FIFO");
6419	if (RT_FAILURE(rc))
6420	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
6421	N_("Failed to allocate %u bytes of memory for the VMSVGA device"), pThis->svga.cbFIFO);
6422	pThis->svga.pFIFOR0 = (RTR0PTR)pThis->svga.pFIFOR3;
6423	}
6424	#endif
6425	rc = PDMDevHlpMMIO2Register(pDevIns, &pThis->Dev, pThis->pciRegions.iVRAM, pThis->vram_size, 0, (void **)&pThis->vram_ptrR3, "VRam");
6426	AssertLogRelMsgRCReturn(rc, ("PDMDevHlpMMIO2Register(%#x,) -> %Rrc\n", pThis->vram_size, rc), rc);
6427	pThis->vram_ptrR0 = (RTR0PTR)pThis->vram_ptrR3; /** @todo @bugref{1865} Map parts into R0 or just use PGM access (Mac only). */
6428
6429	if (pThis->fGCEnabled)
6430	{
6431	RTRCPTR pRCMapping = 0;
6432	rc = PDMDevHlpMMHyperMapMMIO2(pDevIns, &pThis->Dev, pThis->pciRegions.iVRAM, 0 /* off */, VGA_MAPPING_SIZE,
6433	"VGA VRam", &pRCMapping);
6434	AssertLogRelMsgRCReturn(rc, ("PDMDevHlpMMHyperMapMMIO2(%#x,) -> %Rrc\n", VGA_MAPPING_SIZE, rc), rc);
6435	pThis->vram_ptrRC = pRCMapping;
6436	#ifdef VBOX_WITH_VMSVGA
6437	/* Don't need a mapping in RC */
6438	#endif
6439	}
6440
6441	#if defined(VBOX_WITH_2X_4GB_ADDR_SPACE)
6442	if (pThis->fR0Enabled)
6443	{
6444	RTR0PTR pR0Mapping = 0;
6445	rc = PDMDevHlpMMIO2MapKernel(pDevIns, iPCIRegionVRAM, 0 /* off */, VGA_MAPPING_SIZE, "VGA VRam", &pR0Mapping);
6446	AssertLogRelMsgRCReturn(rc, ("PDMDevHlpMapMMIO2IntoR0(%#x,) -> %Rrc\n", VGA_MAPPING_SIZE, rc), rc);
6447	pThis->vram_ptrR0 = pR0Mapping;
6448	# ifdef VBOX_WITH_VMSVGA
6449	if (pThis->fVMSVGAEnabled)
6450	{
6451	RTR0PTR pR0Mapping = 0;
6452	rc = PDMDevHlpMMIO2MapKernel(pDevIns, pThis->pciRegions.iFIFO, 0 /* off */, pThis->svga.cbFIFO, "VMSVGA-FIFO", &pR0Mapping);
6453	AssertLogRelMsgRCReturn(rc, ("PDMDevHlpMapMMIO2IntoR0(%#x,) -> %Rrc\n", pThis->svga.cbFIFO, rc), rc);
6454	pThis->svga.pFIFOR0 = pR0Mapping;
6455	}
6456	# endif
6457	}
6458	#endif
6459
6460	/*
6461	* Register access handler types.
6462	*/
6463	rc = PGMR3HandlerPhysicalTypeRegister(pVM, PGMPHYSHANDLERKIND_WRITE,
6464	vgaLFBAccessHandler,
6465	g_DeviceVga.szR0Mod, "vgaLFBAccessHandler", "vgaLbfAccessPfHandler",
6466	g_DeviceVga.szRCMod, "vgaLFBAccessHandler", "vgaLbfAccessPfHandler",
6467	"VGA LFB", &pThis->hLfbAccessHandlerType);
6468	AssertRCReturn(rc, rc);
6469
6470
6471	/*
6472	* Register I/O ports.
6473	*/
6474	rc = PDMDevHlpIOPortRegister(pDevIns, 0x3c0, 16, NULL, vgaIOPortWrite, vgaIOPortRead, NULL, NULL, "VGA - 3c0");
6475	if (RT_FAILURE(rc))
6476	return rc;
6477	rc = PDMDevHlpIOPortRegister(pDevIns, 0x3b4, 2, NULL, vgaIOPortWrite, vgaIOPortRead, NULL, NULL, "VGA - 3b4");
6478	if (RT_FAILURE(rc))
6479	return rc;
6480	rc = PDMDevHlpIOPortRegister(pDevIns, 0x3ba, 1, NULL, vgaIOPortWrite, vgaIOPortRead, NULL, NULL, "VGA - 3ba");
6481	if (RT_FAILURE(rc))
6482	return rc;
6483	rc = PDMDevHlpIOPortRegister(pDevIns, 0x3d4, 2, NULL, vgaIOPortWrite, vgaIOPortRead, NULL, NULL, "VGA - 3d4");
6484	if (RT_FAILURE(rc))
6485	return rc;
6486	rc = PDMDevHlpIOPortRegister(pDevIns, 0x3da, 1, NULL, vgaIOPortWrite, vgaIOPortRead, NULL, NULL, "VGA - 3da");
6487	if (RT_FAILURE(rc))
6488	return rc;
6489	#ifdef VBOX_WITH_HGSMI
6490	/* Use reserved VGA IO ports for HGSMI. */
6491	rc = PDMDevHlpIOPortRegister(pDevIns, VGA_PORT_HGSMI_HOST, 4, NULL, vgaR3IOPortHGSMIWrite, vgaR3IOPortHGSMIRead, NULL, NULL, "VGA - 3b0 (HGSMI host)");
6492	if (RT_FAILURE(rc))
6493	return rc;
6494	rc = PDMDevHlpIOPortRegister(pDevIns, VGA_PORT_HGSMI_GUEST, 4, NULL, vgaR3IOPortHGSMIWrite, vgaR3IOPortHGSMIRead, NULL, NULL, "VGA - 3d0 (HGSMI guest)");
6495	if (RT_FAILURE(rc))
6496	return rc;
6497	#endif /* VBOX_WITH_HGSMI */
6498
6499	#ifdef CONFIG_BOCHS_VBE
6500	rc = PDMDevHlpIOPortRegister(pDevIns, 0x1ce, 1, NULL, vgaIOPortWriteVBEIndex, vgaIOPortReadVBEIndex, NULL, NULL, "VGA/VBE - Index");
6501	if (RT_FAILURE(rc))
6502	return rc;
6503	rc = PDMDevHlpIOPortRegister(pDevIns, 0x1cf, 1, NULL, vgaIOPortWriteVBEData, vgaIOPortReadVBEData, NULL, NULL, "VGA/VBE - Data");
6504	if (RT_FAILURE(rc))
6505	return rc;
6506	#endif /* CONFIG_BOCHS_VBE */
6507
6508	/* guest context extension */
6509	if (pThis->fGCEnabled)
6510	{
6511	rc = PDMDevHlpIOPortRegisterRC(pDevIns, 0x3c0, 16, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3c0 (GC)");
6512	if (RT_FAILURE(rc))
6513	return rc;
6514	rc = PDMDevHlpIOPortRegisterRC(pDevIns, 0x3b4, 2, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3b4 (GC)");
6515	if (RT_FAILURE(rc))
6516	return rc;
6517	rc = PDMDevHlpIOPortRegisterRC(pDevIns, 0x3ba, 1, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3ba (GC)");
6518	if (RT_FAILURE(rc))
6519	return rc;
6520	rc = PDMDevHlpIOPortRegisterRC(pDevIns, 0x3d4, 2, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3d4 (GC)");
6521	if (RT_FAILURE(rc))
6522	return rc;
6523	rc = PDMDevHlpIOPortRegisterRC(pDevIns, 0x3da, 1, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3da (GC)");
6524	if (RT_FAILURE(rc))
6525	return rc;
6526	#ifdef CONFIG_BOCHS_VBE
6527	rc = PDMDevHlpIOPortRegisterRC(pDevIns, 0x1ce, 1, 0, "vgaIOPortWriteVBEIndex", "vgaIOPortReadVBEIndex", NULL, NULL, "VGA/VBE - Index (GC)");
6528	if (RT_FAILURE(rc))
6529	return rc;
6530	rc = PDMDevHlpIOPortRegisterRC(pDevIns, 0x1cf, 1, 0, "vgaIOPortWriteVBEData", "vgaIOPortReadVBEData", NULL, NULL, "VGA/VBE - Data (GC)");
6531	if (RT_FAILURE(rc))
6532	return rc;
6533	#endif /* CONFIG_BOCHS_VBE */
6534	}
6535
6536	/* R0 context extension */
6537	if (pThis->fR0Enabled)
6538	{
6539	rc = PDMDevHlpIOPortRegisterR0(pDevIns, 0x3c0, 16, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3c0 (GC)");
6540	if (RT_FAILURE(rc))
6541	return rc;
6542	rc = PDMDevHlpIOPortRegisterR0(pDevIns, 0x3b4, 2, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3b4 (GC)");
6543	if (RT_FAILURE(rc))
6544	return rc;
6545	rc = PDMDevHlpIOPortRegisterR0(pDevIns, 0x3ba, 1, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3ba (GC)");
6546	if (RT_FAILURE(rc))
6547	return rc;
6548	rc = PDMDevHlpIOPortRegisterR0(pDevIns, 0x3d4, 2, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3d4 (GC)");
6549	if (RT_FAILURE(rc))
6550	return rc;
6551	rc = PDMDevHlpIOPortRegisterR0(pDevIns, 0x3da, 1, 0, "vgaIOPortWrite", "vgaIOPortRead", NULL, NULL, "VGA - 3da (GC)");
6552	if (RT_FAILURE(rc))
6553	return rc;
6554	#ifdef CONFIG_BOCHS_VBE
6555	rc = PDMDevHlpIOPortRegisterR0(pDevIns, 0x1ce, 1, 0, "vgaIOPortWriteVBEIndex", "vgaIOPortReadVBEIndex", NULL, NULL, "VGA/VBE - Index (GC)");
6556	if (RT_FAILURE(rc))
6557	return rc;
6558	rc = PDMDevHlpIOPortRegisterR0(pDevIns, 0x1cf, 1, 0, "vgaIOPortWriteVBEData", "vgaIOPortReadVBEData", NULL, NULL, "VGA/VBE - Data (GC)");
6559	if (RT_FAILURE(rc))
6560	return rc;
6561	#endif /* CONFIG_BOCHS_VBE */
6562	}
6563
6564	/* vga mmio */
6565	rc = PDMDevHlpMMIORegisterEx(pDevIns, 0x000a0000, 0x00020000, NULL /pvUser/,
6566	IOMMMIO_FLAGS_READ_PASSTHRU \| IOMMMIO_FLAGS_WRITE_PASSTHRU,
6567	vgaMMIOWrite, vgaMMIORead, vgaMMIOFill, "VGA - VGA Video Buffer");
6568	if (RT_FAILURE(rc))
6569	return rc;
6570	if (pThis->fGCEnabled)
6571	{
6572	rc = PDMDevHlpMMIORegisterRCEx(pDevIns, 0x000a0000, 0x00020000, NIL_RTRCPTR /pvUser/,
6573	"vgaMMIOWrite", "vgaMMIORead", "vgaMMIOFill");
6574	if (RT_FAILURE(rc))
6575	return rc;
6576	}
6577	if (pThis->fR0Enabled)
6578	{
6579	rc = PDMDevHlpMMIORegisterR0Ex(pDevIns, 0x000a0000, 0x00020000, NIL_RTR0PTR /pvUser/,
6580	"vgaMMIOWrite", "vgaMMIORead", "vgaMMIOFill");
6581	if (RT_FAILURE(rc))
6582	return rc;
6583	}
6584
6585	/* vga bios */
6586	rc = PDMDevHlpIOPortRegister(pDevIns, VBE_PRINTF_PORT, 1, NULL, vgaIOPortWriteBIOS, vgaIOPortReadBIOS, NULL, NULL, "VGA BIOS debug/panic");
6587	if (RT_FAILURE(rc))
6588	return rc;
6589	if (pThis->fR0Enabled)
6590	{
6591	rc = PDMDevHlpIOPortRegisterR0(pDevIns, VBE_PRINTF_PORT, 1, 0, "vgaIOPortWriteBIOS", "vgaIOPortReadBIOS", NULL, NULL, "VGA BIOS debug/panic");
6592	if (RT_FAILURE(rc))
6593	return rc;
6594	}
6595
6596	/*
6597	* Get the VGA BIOS ROM file name.
6598	*/
6599	rc = CFGMR3QueryStringAlloc(pCfg, "BiosRom", &pThis->pszVgaBiosFile);
6600	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
6601	{
6602	pThis->pszVgaBiosFile = NULL;
6603	rc = VINF_SUCCESS;
6604	}
6605	else if (RT_FAILURE(rc))
6606	return PDMDEV_SET_ERROR(pDevIns, rc,
6607	N_("Configuration error: Querying \"BiosRom\" as a string failed"));
6608	else if (!*pThis->pszVgaBiosFile)
6609	{
6610	MMR3HeapFree(pThis->pszVgaBiosFile);
6611	pThis->pszVgaBiosFile = NULL;
6612	}
6613
6614	/*
6615	* Determine the VGA BIOS ROM size, open specified ROM file in the process.
6616	*/
6617	RTFILE FileVgaBios = NIL_RTFILE;
6618	if (pThis->pszVgaBiosFile)
6619	{
6620	rc = RTFileOpen(&FileVgaBios, pThis->pszVgaBiosFile,
6621	RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
6622	if (RT_SUCCESS(rc))
6623	{
6624	rc = RTFileGetSize(FileVgaBios, &pThis->cbVgaBios);
6625	if (RT_SUCCESS(rc))
6626	{
6627	if ( RT_ALIGN(pThis->cbVgaBios, _4K) != pThis->cbVgaBios
6628	\|\| pThis->cbVgaBios > _64K
6629	\|\| pThis->cbVgaBios < 16 * _1K)
6630	rc = VERR_TOO_MUCH_DATA;
6631	}
6632	}
6633	if (RT_FAILURE(rc))
6634	{
6635	/*
6636	* In case of failure simply fall back to the built-in VGA BIOS ROM.
6637	*/
6638	Log(("vgaConstruct: Failed to open VGA BIOS ROM file '%s', rc=%Rrc!\n", pThis->pszVgaBiosFile, rc));
6639	RTFileClose(FileVgaBios);
6640	FileVgaBios = NIL_RTFILE;
6641	MMR3HeapFree(pThis->pszVgaBiosFile);
6642	pThis->pszVgaBiosFile = NULL;
6643	}
6644	}
6645
6646	/*
6647	* Attempt to get the VGA BIOS ROM data from file.
6648	*/
6649	if (pThis->pszVgaBiosFile)
6650	{
6651	/*
6652	* Allocate buffer for the VGA BIOS ROM data.
6653	*/
6654	pThis->pbVgaBios = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, pThis->cbVgaBios);
6655	if (pThis->pbVgaBios)
6656	{
6657	rc = RTFileRead(FileVgaBios, pThis->pbVgaBios, pThis->cbVgaBios, NULL);
6658	if (RT_FAILURE(rc))
6659	{
6660	AssertMsgFailed(("RTFileRead(,,%d,NULL) -> %Rrc\n", pThis->cbVgaBios, rc));
6661	PDMDevHlpMMHeapFree(pDevIns, pThis->pbVgaBios);
6662	pThis->pbVgaBios = NULL;
6663	}
6664	rc = VINF_SUCCESS;
6665	}
6666	else
6667	rc = VERR_NO_MEMORY;
6668	}
6669	else
6670	pThis->pbVgaBios = NULL;
6671
6672	/* cleanup */
6673	if (FileVgaBios != NIL_RTFILE)
6674	RTFileClose(FileVgaBios);
6675
6676	/* If we were unable to get the data from file for whatever reason, fall
6677	back to the built-in ROM image. */
6678	const uint8_t *pbVgaBiosBinary;
6679	uint64_t cbVgaBiosBinary;
6680	uint32_t fFlags = 0;
6681	if (pThis->pbVgaBios == NULL)
6682	{
6683	CPUMMICROARCH enmMicroarch = pVM ? pVM->cpum.ro.GuestFeatures.enmMicroarch : kCpumMicroarch_Intel_P6;
6684	if ( enmMicroarch == kCpumMicroarch_Intel_8086
6685	\|\| enmMicroarch == kCpumMicroarch_Intel_80186
6686	\|\| enmMicroarch == kCpumMicroarch_NEC_V20
6687	\|\| enmMicroarch == kCpumMicroarch_NEC_V30)
6688	{
6689	pbVgaBiosBinary = g_abVgaBiosBinary8086;
6690	cbVgaBiosBinary = g_cbVgaBiosBinary8086;
6691	LogRel(("VGA: Using the 8086 BIOS image!\n"));
6692	}
6693	else if (enmMicroarch == kCpumMicroarch_Intel_80286)
6694	{
6695	pbVgaBiosBinary = g_abVgaBiosBinary286;
6696	cbVgaBiosBinary = g_cbVgaBiosBinary286;
6697	LogRel(("VGA: Using the 286 BIOS image!\n"));
6698	}
6699	else
6700	{
6701	pbVgaBiosBinary = g_abVgaBiosBinary386;
6702	cbVgaBiosBinary = g_cbVgaBiosBinary386;
6703	LogRel(("VGA: Using the 386+ BIOS image.\n"));
6704	}
6705	fFlags = PGMPHYS_ROM_FLAGS_PERMANENT_BINARY;
6706	}
6707	else
6708	{
6709	pbVgaBiosBinary = pThis->pbVgaBios;
6710	cbVgaBiosBinary = pThis->cbVgaBios;
6711	}
6712
6713	AssertReleaseMsg(cbVgaBiosBinary <= _64K && cbVgaBiosBinary >= 32*_1K, ("cbVgaBiosBinary=%#x\n", cbVgaBiosBinary));
6714	AssertReleaseMsg(RT_ALIGN_Z(cbVgaBiosBinary, PAGE_SIZE) == cbVgaBiosBinary, ("cbVgaBiosBinary=%#x\n", cbVgaBiosBinary));
6715	/* Note! Because of old saved states we'll always register at least 36KB of ROM. */
6716	rc = PDMDevHlpROMRegister(pDevIns, 0x000c0000, RT_MAX(cbVgaBiosBinary, 36*_1K), pbVgaBiosBinary, cbVgaBiosBinary,
6717	fFlags, "VGA BIOS");
6718	if (RT_FAILURE(rc))
6719	return rc;
6720
6721	/*
6722	* Saved state.
6723	*/
6724	rc = PDMDevHlpSSMRegisterEx(pDevIns, VGA_SAVEDSTATE_VERSION, sizeof(*pThis), NULL,
6725	NULL, vgaR3LiveExec, NULL,
6726	vgaR3SavePrep, vgaR3SaveExec, vgaR3SaveDone,
6727	NULL, vgaR3LoadExec, vgaR3LoadDone);
6728	if (RT_FAILURE(rc))
6729	return rc;
6730
6731	/*
6732	* Create the refresh timer.
6733	*/
6734	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_REAL, vgaTimerRefresh,
6735	pThis, TMTIMER_FLAGS_NO_CRIT_SECT,
6736	"VGA Refresh Timer", &pThis->RefreshTimer);
6737	if (RT_FAILURE(rc))
6738	return rc;
6739
6740	/*
6741	* Attach to the display.
6742	*/
6743	rc = vgaAttach(pDevIns, 0 /* display LUN # */, PDM_TACH_FLAGS_NOT_HOT_PLUG);
6744	if (RT_FAILURE(rc))
6745	return rc;
6746
6747	/*
6748	* Initialize the retrace flag.
6749	*/
6750	rc = CFGMR3QueryBoolDef(pCfg, "RealRetrace", &pThis->fRealRetrace, false);
6751	AssertLogRelRCReturn(rc, rc);
6752
6753	uint16_t maxBiosXRes;
6754	rc = CFGMR3QueryU16Def(pCfg, "MaxBiosXRes", &maxBiosXRes, UINT16_MAX);
6755	AssertLogRelRCReturn(rc, rc);
6756	uint16_t maxBiosYRes;
6757	rc = CFGMR3QueryU16Def(pCfg, "MaxBiosYRes", &maxBiosYRes, UINT16_MAX);
6758	AssertLogRelRCReturn(rc, rc);
6759
6760	/*
6761	* Compute buffer size for the VBE BIOS Extra Data.
6762	*/
6763	cb = sizeof(mode_info_list) + sizeof(ModeInfoListItem);
6764
6765	rc = CFGMR3QueryU32(pCfg, "HeightReduction", &cyReduction);
6766	if (RT_SUCCESS(rc) && cyReduction)
6767	cb = 2; / Default mode list will be twice long */
6768	else
6769	cyReduction = 0;
6770
6771	rc = CFGMR3QueryU32(pCfg, "CustomVideoModes", &cCustomModes);
6772	if (RT_SUCCESS(rc) && cCustomModes)
6773	cb += sizeof(ModeInfoListItem) * cCustomModes;
6774	else
6775	cCustomModes = 0;
6776
6777	/*
6778	* Allocate and initialize buffer for the VBE BIOS Extra Data.
6779	*/
6780	AssertRelease(sizeof(VBEHEADER) + cb < 65536);
6781	pThis->cbVBEExtraData = (uint16_t)(sizeof(VBEHEADER) + cb);
6782	pThis->pbVBEExtraData = (uint8_t *)PDMDevHlpMMHeapAllocZ(pDevIns, pThis->cbVBEExtraData);
6783	if (!pThis->pbVBEExtraData)
6784	return VERR_NO_MEMORY;
6785
6786	pVBEDataHdr = (PVBEHEADER)pThis->pbVBEExtraData;
6787	pVBEDataHdr->u16Signature = VBEHEADER_MAGIC;
6788	pVBEDataHdr->cbData = cb;
6789
6790	pCurMode = (ModeInfoListItem *)(pVBEDataHdr + 1);
6791	for (i = 0; i < MODE_INFO_SIZE; i++)
6792	{
6793	uint32_t pixelWidth, reqSize;
6794	if (mode_info_list[i].info.MemoryModel == VBE_MEMORYMODEL_TEXT_MODE)
6795	pixelWidth = 2;
6796	else
6797	pixelWidth = (mode_info_list[i].info.BitsPerPixel +7) / 8;
6798	reqSize = mode_info_list[i].info.XResolution
6799	* mode_info_list[i].info.YResolution
6800	* pixelWidth;
6801	if (reqSize >= pThis->vram_size)
6802	continue;
6803	if ( mode_info_list[i].info.XResolution > maxBiosXRes
6804	\|\| mode_info_list[i].info.YResolution > maxBiosYRes)
6805	continue;
6806	*pCurMode = mode_info_list[i];
6807	vgaAdjustModeInfo(pThis, pCurMode);
6808	pCurMode++;
6809	}
6810
6811	/*
6812	* Copy default modes with subtracted YResolution.
6813	*/
6814	if (cyReduction)
6815	{
6816	ModeInfoListItem *pDefMode = mode_info_list;
6817	Log(("vgaR3Construct: cyReduction=%u\n", cyReduction));
6818	for (i = 0; i < MODE_INFO_SIZE; i++, pDefMode++)
6819	{
6820	uint32_t pixelWidth, reqSize;
6821	if (pDefMode->info.MemoryModel == VBE_MEMORYMODEL_TEXT_MODE)
6822	pixelWidth = 2;
6823	else
6824	pixelWidth = (pDefMode->info.BitsPerPixel + 7) / 8;
6825	reqSize = pDefMode->info.XResolution * pDefMode->info.YResolution * pixelWidth;
6826	if (reqSize >= pThis->vram_size)
6827	continue;
6828	if ( pDefMode->info.XResolution > maxBiosXRes
6829	\|\| pDefMode->info.YResolution - cyReduction > maxBiosYRes)
6830	continue;
6831	pCurMode = pDefMode;
6832	pCurMode->mode += 0x30;
6833	pCurMode->info.YResolution -= cyReduction;
6834	pCurMode++;
6835	}
6836	}
6837
6838
6839	/*
6840	* Add custom modes.
6841	*/
6842	if (cCustomModes)
6843	{
6844	uint16_t u16CurMode = VBE_VBOX_MODE_CUSTOM1;
6845	for (i = 1; i <= cCustomModes; i++)
6846	{
6847	char szExtraDataKey[sizeof("CustomVideoModeXX")];
6848	char *pszExtraData = NULL;
6849
6850	/* query and decode the custom mode string. */
6851	RTStrPrintf(szExtraDataKey, sizeof(szExtraDataKey), "CustomVideoMode%d", i);
6852	rc = CFGMR3QueryStringAlloc(pCfg, szExtraDataKey, &pszExtraData);
6853	if (RT_SUCCESS(rc))
6854	{
6855	ModeInfoListItem *pDefMode = mode_info_list;
6856	unsigned int cx, cy, cBits, cParams, j;
6857	uint16_t u16DefMode;
6858
6859	cParams = sscanf(pszExtraData, "%ux%ux%u", &cx, &cy, &cBits);
6860	if ( cParams != 3
6861	\|\| (cBits != 8 && cBits != 16 && cBits != 24 && cBits != 32))
6862	{
6863	AssertMsgFailed(("Configuration error: Invalid mode data '%s' for '%s'! cBits=%d\n", pszExtraData, szExtraDataKey, cBits));
6864	return VERR_VGA_INVALID_CUSTOM_MODE;
6865	}
6866	cbPitch = calc_line_pitch(cBits, cx);
6867	if (cy * cbPitch >= pThis->vram_size)
6868	{
6869	AssertMsgFailed(("Configuration error: custom video mode %dx%dx%dbits is too large for the virtual video memory of %dMb. Please increase the video memory size.\n",
6870	cx, cy, cBits, pThis->vram_size / _1M));
6871	return VERR_VGA_INVALID_CUSTOM_MODE;
6872	}
6873	MMR3HeapFree(pszExtraData);
6874
6875	/* Use defaults from max@bpp mode. */
6876	switch (cBits)
6877	{
6878	case 8:
6879	u16DefMode = VBE_VESA_MODE_1024X768X8;
6880	break;
6881
6882	case 16:
6883	u16DefMode = VBE_VESA_MODE_1024X768X565;
6884	break;
6885
6886	case 24:
6887	u16DefMode = VBE_VESA_MODE_1024X768X888;
6888	break;
6889
6890	case 32:
6891	u16DefMode = VBE_OWN_MODE_1024X768X8888;
6892	break;
6893
6894	default: /* gcc, shut up! */
6895	AssertMsgFailed(("gone postal!\n"));
6896	continue;
6897	}
6898
6899	/* mode_info_list is not terminated */
6900	for (j = 0; j < MODE_INFO_SIZE && pDefMode->mode != u16DefMode; j++)
6901	pDefMode++;
6902	Assert(j < MODE_INFO_SIZE);
6903
6904	pCurMode = pDefMode;
6905	pCurMode->mode = u16CurMode++;
6906
6907	/* adjust defaults */
6908	pCurMode->info.XResolution = cx;
6909	pCurMode->info.YResolution = cy;
6910	pCurMode->info.BytesPerScanLine = cbPitch;
6911	pCurMode->info.LinBytesPerScanLine = cbPitch;
6912	vgaAdjustModeInfo(pThis, pCurMode);
6913
6914	/* commit it */
6915	pCurMode++;
6916	}
6917	else if (rc != VERR_CFGM_VALUE_NOT_FOUND)
6918	{
6919	AssertMsgFailed(("CFGMR3QueryStringAlloc(,'%s',) -> %Rrc\n", szExtraDataKey, rc));
6920	return rc;
6921	}
6922	} /* foreach custom mode key */
6923	}
6924
6925	/*
6926	* Add the "End of list" mode.
6927	*/
6928	memset(pCurMode, 0, sizeof(*pCurMode));
6929	pCurMode->mode = VBE_VESA_MODE_END_OF_LIST;
6930
6931	/*
6932	* Register I/O Port for the VBE BIOS Extra Data.
6933	*/
6934	rc = PDMDevHlpIOPortRegister(pDevIns, VBE_EXTRA_PORT, 1, NULL, vbeIOPortWriteVBEExtra, vbeIOPortReadVBEExtra, NULL, NULL, "VBE BIOS Extra Data");
6935	if (RT_FAILURE(rc))
6936	return rc;
6937
6938	/*
6939	* Register I/O Port for the BIOS Logo.
6940	*/
6941	rc = PDMDevHlpIOPortRegister(pDevIns, LOGO_IO_PORT, 1, NULL, vbeIOPortWriteCMDLogo, vbeIOPortReadCMDLogo, NULL, NULL, "BIOS Logo");
6942	if (RT_FAILURE(rc))
6943	return rc;
6944
6945	/*
6946	* Register debugger info callbacks.
6947	*/
6948	PDMDevHlpDBGFInfoRegister(pDevIns, "vga", "Display basic VGA state.", vgaInfoState);
6949	PDMDevHlpDBGFInfoRegister(pDevIns, "vgatext", "Display VGA memory formatted as text.", vgaInfoText);
6950	PDMDevHlpDBGFInfoRegister(pDevIns, "vgacr", "Dump VGA CRTC registers.", vgaInfoCR);
6951	PDMDevHlpDBGFInfoRegister(pDevIns, "vgagr", "Dump VGA Graphics Controller registers.", vgaInfoGR);
6952	PDMDevHlpDBGFInfoRegister(pDevIns, "vgasr", "Dump VGA Sequencer registers.", vgaInfoSR);
6953	PDMDevHlpDBGFInfoRegister(pDevIns, "vgaar", "Dump VGA Attribute Controller registers.", vgaInfoAR);
6954	PDMDevHlpDBGFInfoRegister(pDevIns, "vgapl", "Dump planar graphics state.", vgaInfoPlanar);
6955	PDMDevHlpDBGFInfoRegister(pDevIns, "vgadac", "Dump VGA DAC registers.", vgaInfoDAC);
6956	PDMDevHlpDBGFInfoRegister(pDevIns, "vbe", "Dump VGA VBE registers.", vgaInfoVBE);
6957
6958	/*
6959	* Construct the logo header.
6960	*/
6961	LOGOHDR LogoHdr = { LOGO_HDR_MAGIC, 0, 0, 0, 0, 0, 0 };
6962
6963	rc = CFGMR3QueryU8(pCfg, "FadeIn", &LogoHdr.fu8FadeIn);
6964	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
6965	LogoHdr.fu8FadeIn = 1;
6966	else if (RT_FAILURE(rc))
6967	return PDMDEV_SET_ERROR(pDevIns, rc,
6968	N_("Configuration error: Querying \"FadeIn\" as integer failed"));
6969
6970	rc = CFGMR3QueryU8(pCfg, "FadeOut", &LogoHdr.fu8FadeOut);
6971	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
6972	LogoHdr.fu8FadeOut = 1;
6973	else if (RT_FAILURE(rc))
6974	return PDMDEV_SET_ERROR(pDevIns, rc,
6975	N_("Configuration error: Querying \"FadeOut\" as integer failed"));
6976
6977	rc = CFGMR3QueryU16(pCfg, "LogoTime", &LogoHdr.u16LogoMillies);
6978	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
6979	LogoHdr.u16LogoMillies = 0;
6980	else if (RT_FAILURE(rc))
6981	return PDMDEV_SET_ERROR(pDevIns, rc,
6982	N_("Configuration error: Querying \"LogoTime\" as integer failed"));
6983
6984	rc = CFGMR3QueryU8(pCfg, "ShowBootMenu", &LogoHdr.fu8ShowBootMenu);
6985	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
6986	LogoHdr.fu8ShowBootMenu = 0;
6987	else if (RT_FAILURE(rc))
6988	return PDMDEV_SET_ERROR(pDevIns, rc,
6989	N_("Configuration error: Querying \"ShowBootMenu\" as integer failed"));
6990
6991	#if defined(DEBUG) && !defined(DEBUG_sunlover) && !defined(DEBUG_michael)
6992	/* Disable the logo abd menu if all default settings. */
6993	if ( LogoHdr.fu8FadeIn
6994	&& LogoHdr.fu8FadeOut
6995	&& LogoHdr.u16LogoMillies == 0
6996	&& LogoHdr.fu8ShowBootMenu == 2)
6997	{
6998	LogoHdr.fu8FadeIn = LogoHdr.fu8FadeOut = 0;
6999	LogoHdr.u16LogoMillies = 500;
7000	}
7001	#endif
7002
7003	/* Delay the logo a little bit */
7004	if (LogoHdr.fu8FadeIn && LogoHdr.fu8FadeOut && !LogoHdr.u16LogoMillies)
7005	LogoHdr.u16LogoMillies = RT_MAX(LogoHdr.u16LogoMillies, LOGO_DELAY_TIME);
7006
7007	/*
7008	* Get the Logo file name.
7009	*/
7010	rc = CFGMR3QueryStringAlloc(pCfg, "LogoFile", &pThis->pszLogoFile);
7011	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
7012	pThis->pszLogoFile = NULL;
7013	else if (RT_FAILURE(rc))
7014	return PDMDEV_SET_ERROR(pDevIns, rc,
7015	N_("Configuration error: Querying \"LogoFile\" as a string failed"));
7016	else if (!*pThis->pszLogoFile)
7017	{
7018	MMR3HeapFree(pThis->pszLogoFile);
7019	pThis->pszLogoFile = NULL;
7020	}
7021
7022	/*
7023	* Determine the logo size, open any specified logo file in the process.
7024	*/
7025	LogoHdr.cbLogo = g_cbVgaDefBiosLogo;
7026	RTFILE FileLogo = NIL_RTFILE;
7027	if (pThis->pszLogoFile)
7028	{
7029	rc = RTFileOpen(&FileLogo, pThis->pszLogoFile,
7030	RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
7031	if (RT_SUCCESS(rc))
7032	{
7033	uint64_t cbFile;
7034	rc = RTFileGetSize(FileLogo, &cbFile);
7035	if (RT_SUCCESS(rc))
7036	{
7037	if (cbFile > 0 && cbFile < 32*_1M)
7038	LogoHdr.cbLogo = (uint32_t)cbFile;
7039	else
7040	rc = VERR_TOO_MUCH_DATA;
7041	}
7042	}
7043	if (RT_FAILURE(rc))
7044	{
7045	/*
7046	* Ignore failure and fall back to the default logo.
7047	*/
7048	LogRel(("vgaR3Construct: Failed to open logo file '%s', rc=%Rrc!\n", pThis->pszLogoFile, rc));
7049	if (FileLogo != NIL_RTFILE)
7050	RTFileClose(FileLogo);
7051	FileLogo = NIL_RTFILE;
7052	MMR3HeapFree(pThis->pszLogoFile);
7053	pThis->pszLogoFile = NULL;
7054	}
7055	}
7056
7057	/*
7058	* Disable graphic splash screen if it doesn't fit into VRAM.
7059	*/
7060	if (pThis->vram_size < LOGO_MAX_SIZE)
7061	LogoHdr.fu8FadeIn = LogoHdr.fu8FadeOut = LogoHdr.u16LogoMillies = 0;
7062
7063	/*
7064	* Allocate buffer for the logo data.
7065	* Let us fall back to default logo on read failure.
7066	*/
7067	pThis->cbLogo = LogoHdr.cbLogo;
7068	if (g_cbVgaDefBiosLogo)
7069	pThis->cbLogo = g_cbVgaDefBiosLogo;
7070	#ifndef VBOX_OSE
7071	if (g_cbVgaDefBiosLogoNY)
7072	pThis->cbLogo = g_cbVgaDefBiosLogoNY;
7073	#endif
7074	pThis->cbLogo += sizeof(LogoHdr);
7075
7076	pThis->pbLogo = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, pThis->cbLogo);
7077	if (pThis->pbLogo)
7078	{
7079	/*
7080	* Write the logo header.
7081	*/
7082	PLOGOHDR pLogoHdr = (PLOGOHDR)pThis->pbLogo;
7083	*pLogoHdr = LogoHdr;
7084
7085	/*
7086	* Write the logo bitmap.
7087	*/
7088	if (pThis->pszLogoFile)
7089	{
7090	rc = RTFileRead(FileLogo, pLogoHdr + 1, LogoHdr.cbLogo, NULL);
7091	if (RT_SUCCESS(rc))
7092	rc = vbeParseBitmap(pThis);
7093	if (RT_FAILURE(rc))
7094	{
7095	LogRel(("Error %Rrc reading logo file '%s', using internal logo\n",
7096	rc, pThis->pszLogoFile));
7097	pLogoHdr->cbLogo = LogoHdr.cbLogo = g_cbVgaDefBiosLogo;
7098	}
7099	}
7100	if ( !pThis->pszLogoFile
7101	\|\| RT_FAILURE(rc))
7102	{
7103	#ifndef VBOX_OSE
7104	RTTIMESPEC Now;
7105	RTTimeLocalNow(&Now);
7106	RTTIME T;
7107	RTTimeLocalExplode(&T, &Now);
7108	bool fSuppressNewYearSplash = false;
7109	rc = CFGMR3QueryBoolDef(pCfg, "SuppressNewYearSplash", &fSuppressNewYearSplash, true);
7110	if ( !fSuppressNewYearSplash
7111	&& (T.u16YearDay > 353 \|\| T.u16YearDay < 10))
7112	{
7113	pLogoHdr->cbLogo = LogoHdr.cbLogo = g_cbVgaDefBiosLogoNY;
7114	memcpy(pLogoHdr + 1, g_abVgaDefBiosLogoNY, LogoHdr.cbLogo);
7115	pThis->fBootMenuInverse = true;
7116	}
7117	else
7118	#endif
7119	memcpy(pLogoHdr + 1, g_abVgaDefBiosLogo, LogoHdr.cbLogo);
7120	rc = vbeParseBitmap(pThis);
7121	if (RT_FAILURE(rc))
7122	AssertReleaseMsgFailed(("Parsing of internal bitmap failed! vbeParseBitmap() -> %Rrc\n", rc));
7123	}
7124
7125	rc = VINF_SUCCESS;
7126	}
7127	else
7128	rc = VERR_NO_MEMORY;
7129
7130	/*
7131	* Cleanup.
7132	*/
7133	if (FileLogo != NIL_RTFILE)
7134	RTFileClose(FileLogo);
7135
7136	#ifdef VBOX_WITH_HGSMI
7137	VBVAInit (pThis);
7138	#endif /* VBOX_WITH_HGSMI */
7139
7140	#ifdef VBOX_WITH_VDMA
7141	if (rc == VINF_SUCCESS)
7142	{
7143	rc = vboxVDMAConstruct(pThis, 1024);
7144	AssertRC(rc);
7145	}
7146	#endif
7147
7148	#ifdef VBOX_WITH_VMSVGA
7149	if ( rc == VINF_SUCCESS
7150	&& pThis->fVMSVGAEnabled)
7151	{
7152	rc = vmsvgaInit(pDevIns);
7153	}
7154	#endif
7155
7156	/*
7157	* Statistics.
7158	*/
7159	STAM_REG(pVM, &pThis->StatRZMemoryRead, STAMTYPE_PROFILE, "/Devices/VGA/RZ/MMIO-Read", STAMUNIT_TICKS_PER_CALL, "Profiling of the VGAGCMemoryRead() body.");
7160	STAM_REG(pVM, &pThis->StatR3MemoryRead, STAMTYPE_PROFILE, "/Devices/VGA/R3/MMIO-Read", STAMUNIT_TICKS_PER_CALL, "Profiling of the VGAGCMemoryRead() body.");
7161	STAM_REG(pVM, &pThis->StatRZMemoryWrite, STAMTYPE_PROFILE, "/Devices/VGA/RZ/MMIO-Write", STAMUNIT_TICKS_PER_CALL, "Profiling of the VGAGCMemoryWrite() body.");
7162	STAM_REG(pVM, &pThis->StatR3MemoryWrite, STAMTYPE_PROFILE, "/Devices/VGA/R3/MMIO-Write", STAMUNIT_TICKS_PER_CALL, "Profiling of the VGAGCMemoryWrite() body.");
7163	STAM_REG(pVM, &pThis->StatMapPage, STAMTYPE_COUNTER, "/Devices/VGA/MapPageCalls", STAMUNIT_OCCURENCES, "Calls to IOMMMIOMapMMIO2Page.");
7164	STAM_REG(pVM, &pThis->StatUpdateDisp, STAMTYPE_COUNTER, "/Devices/VGA/UpdateDisplay", STAMUNIT_OCCURENCES, "Calls to vgaPortUpdateDisplay().");
7165
7166	/* Init latched access mask. */
7167	pThis->uMaskLatchAccess = 0x3ff;
7168
7169	if (RT_SUCCESS(rc))
7170	{
7171	PPDMIBASE pBase;
7172	/*
7173	* Attach status driver (optional).
7174	*/
7175	rc = PDMDevHlpDriverAttach(pDevIns, PDM_STATUS_LUN, &pThis->IBase, &pBase, "Status Port");
7176	if (RT_SUCCESS(rc))
7177	pThis->pLedsConnector = PDMIBASE_QUERY_INTERFACE(pBase, PDMILEDCONNECTORS);
7178	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
7179	{
7180	Log(("%s/%d: warning: no driver attached to LUN #0!\n", pDevIns->pReg->szName, pDevIns->iInstance));
7181	rc = VINF_SUCCESS;
7182	}
7183	else
7184	{
7185	AssertMsgFailed(("Failed to attach to status driver. rc=%Rrc\n", rc));
7186	rc = PDMDEV_SET_ERROR(pDevIns, rc, N_("VGA cannot attach to status driver"));
7187	}
7188	}
7189	return rc;
7190	}
7191
7192	static DECLCALLBACK(void) vgaR3PowerOn(PPDMDEVINS pDevIns)
7193	{
7194	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
7195	#ifdef VBOX_WITH_VMSVGA
7196	vmsvgaR3PowerOn(pDevIns);
7197	#endif
7198	VBVAOnResume(pThis);
7199	}
7200
7201	static DECLCALLBACK(void) vgaR3Resume(PPDMDEVINS pDevIns)
7202	{
7203	PVGASTATE pThis = PDMINS_2_DATA(pDevIns, PVGASTATE);
7204	VBVAOnResume(pThis);
7205	}
7206
7207	/**
7208	* The device registration structure.
7209	*/
7210	const PDMDEVREG g_DeviceVga =
7211	{
7212	/* u32Version */
7213	PDM_DEVREG_VERSION,
7214	/* szName */
7215	"vga",
7216	/* szRCMod */
7217	"VBoxDDRC.rc",
7218	/* szR0Mod */
7219	"VBoxDDR0.r0",
7220	/* pszDescription */
7221	"VGA Adaptor with VESA extensions.",
7222	/* fFlags */
7223	PDM_DEVREG_FLAGS_DEFAULT_BITS \| PDM_DEVREG_FLAGS_RC \| PDM_DEVREG_FLAGS_R0,
7224	/* fClass */
7225	PDM_DEVREG_CLASS_GRAPHICS,
7226	/* cMaxInstances */
7227	1,
7228	/* cbInstance */
7229	sizeof(VGASTATE),
7230	/* pfnConstruct */
7231	vgaR3Construct,
7232	/* pfnDestruct */
7233	vgaR3Destruct,
7234	/* pfnRelocate */
7235	vgaR3Relocate,
7236	/* pfnMemSetup */
7237	NULL,
7238	/* pfnPowerOn */
7239	vgaR3PowerOn,
7240	/* pfnReset */
7241	vgaR3Reset,
7242	/* pfnSuspend */
7243	NULL,
7244	/* pfnResume */
7245	vgaR3Resume,
7246	/* pfnAttach */
7247	vgaAttach,
7248	/* pfnDetach */
7249	vgaDetach,
7250	/* pfnQueryInterface */
7251	NULL,
7252	/* pfnInitComplete */
7253	NULL,
7254	/* pfnPowerOff */
7255	NULL,
7256	/* pfnSoftReset */
7257	NULL,
7258	/* u32VersionEnd */
7259	PDM_DEVREG_VERSION
7260	};
7261
7262	#endif /* !IN_RING3 */
7263	#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
7264
7265	/*
7266	* Local Variables:
7267	* nuke-trailing-whitespace-p:nil
7268	* End:
7269	*/

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source: vbox/trunk/src/VBox/Devices/Graphics/DevVGA.cpp@ 76985

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