| 1 | /** @file
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| 2 | *
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| 3 | * VirtualBox X11 Additions graphics driver
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | * --------------------------------------------------------------------
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| 17 | *
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| 18 | * This code is based on:
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| 19 | *
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| 20 | * X11 VESA driver
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| 21 | *
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| 22 | * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
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| 23 | *
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| 24 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 25 | * copy of this software and associated documentation files (the "Software"),
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| 26 | * to deal in the Software without restriction, including without limitation
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| 27 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 28 | * and/or sell copies of the Software, and to permit persons to whom the
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| 29 | * Software is furnished to do so, subject to the following conditions:
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| 30 | *
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| 31 | * The above copyright notice and this permission notice shall be included in
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| 32 | * all copies or substantial portions of the Software.
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| 33 | *
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| 34 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 35 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 36 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 37 | * CONECTIVA LINUX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 38 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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| 39 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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| 40 | * SOFTWARE.
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| 41 | *
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| 42 | * Except as contained in this notice, the name of Conectiva Linux shall
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| 43 | * not be used in advertising or otherwise to promote the sale, use or other
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| 44 | * dealings in this Software without prior written authorization from
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| 45 | * Conectiva Linux.
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| 46 | *
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| 47 | * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
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| 48 | *
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| 49 | * $XFree86: xc/programs/Xserver/hw/xfree86/drivers/vesa/vesa.h,v 1.9 2001/05/04 19:05:49 dawes Exp $
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| 50 | */
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| 51 |
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| 52 | #ifndef _VBOXVIDEO_H_
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| 53 | #define _VBOXVIDEO_H_
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| 54 |
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| 55 | #include <VBox/VBoxVideoGuest.h>
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| 56 | #include <VBox/VBoxVideo.h>
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| 57 |
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| 58 | #ifdef DEBUG
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| 59 |
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| 60 | #define TRACE_ENTRY() \
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| 61 | do { \
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| 62 | xf86Msg(X_INFO, __PRETTY_FUNCTION__); \
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| 63 | xf86Msg(X_INFO, ": entering\n"); \
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| 64 | } while(0)
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| 65 | #define TRACE_EXIT() \
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| 66 | do { \
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| 67 | xf86Msg(X_INFO, __PRETTY_FUNCTION__); \
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| 68 | xf86Msg(X_INFO, ": leaving\n"); \
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| 69 | } while(0)
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| 70 | #define TRACE_LOG(...) \
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| 71 | do { \
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| 72 | xf86Msg(X_INFO, __PRETTY_FUNCTION__); \
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| 73 | xf86Msg(X_INFO, __VA_ARGS__); \
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| 74 | } while(0)
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| 75 | # define TRACE_LINE() do \
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| 76 | { \
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| 77 | ErrorF ("%s: line %d\n", __FUNCTION__, __LINE__); \
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| 78 | } while(0)
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| 79 | # define XF86ASSERT(expr, out) \
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| 80 | if (!(expr)) \
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| 81 | { \
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| 82 | ErrorF ("\nAssertion failed!\n\n"); \
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| 83 | ErrorF ("%s\n", #expr); \
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| 84 | ErrorF ("at %s (%s:%d)\n", __PRETTY_FUNCTION__, __FILE__, __LINE__); \
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| 85 | ErrorF out; \
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| 86 | FatalError("Aborting"); \
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| 87 | }
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| 88 | #else /* !DEBUG */
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| 89 |
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| 90 | #define TRACE_ENTRY() do { } while (0)
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| 91 | #define TRACE_EXIT() do { } while (0)
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| 92 | #define TRACE_LOG(...) do { } while (0)
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| 93 | #define XF86ASSERT(expr, out) do { } while (0)
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| 94 |
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| 95 | #endif /* !DEBUG */
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| 96 |
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| 97 | #define BOOL_STR(a) ((a) ? "TRUE" : "FALSE")
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| 98 |
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| 99 | #include <VBox/Hardware/VBoxVideoVBE.h>
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| 100 | #include <VBox/VMMDev.h>
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| 101 |
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| 102 | #include "xf86str.h"
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| 103 | #include "xf86Cursor.h"
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| 104 |
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| 105 | #define VBOX_VERSION 4000 /* Why? */
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| 106 | #define VBOX_NAME "VBoxVideo"
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| 107 | #define VBOX_DRIVER_NAME "vboxvideo"
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| 108 |
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| 109 | #ifdef VBOX_DRI
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| 110 | /* DRI support */
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| 111 | #define _XF86DRI_SERVER_
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| 112 | /* Hack to work around a libdrm header which is broken on Solaris */
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| 113 | #define u_int64_t uint64_t
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| 114 | /* Get rid of a warning due to a broken header file */
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| 115 | enum drm_bo_type { DRM_BO_TYPE };
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| 116 | #include "dri.h"
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| 117 | #undef u_int64_t
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| 118 | #include "sarea.h"
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| 119 | #include "GL/glxint.h"
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| 120 | #include "GL/glxtokens.h"
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| 121 |
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| 122 | /* For some reason this is not in the header files. */
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| 123 | extern void GlxSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs,
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| 124 | void **configprivs);
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| 125 | #endif
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| 126 |
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| 127 | #define VBOX_VIDEO_MAJOR 1
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| 128 | #define VBOX_VIDEO_MINOR 0
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| 129 | #define VBOX_DRM_DRIVER_NAME "vboxvideo" /* For now, as this driver is basically a stub. */
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| 130 | #define VBOX_DRI_DRIVER_NAME "vboxvideo" /* For starters. */
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| 131 | #define VBOX_MAX_DRAWABLES 256 /* At random. */
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| 132 |
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| 133 | #define VBOXPTR(p) ((VBOXPtr)((p)->driverPrivate))
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| 134 |
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| 135 | /*XXX*/
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| 136 |
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| 137 | typedef struct VBOXRec
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| 138 | {
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| 139 | EntityInfoPtr pEnt;
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| 140 | #ifdef PCIACCESS
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| 141 | struct pci_device *pciInfo;
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| 142 | struct pci_device *vmmDevInfo;
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| 143 | #else
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| 144 | pciVideoPtr pciInfo;
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| 145 | PCITAG pciTag;
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| 146 | #endif
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| 147 | void *base;
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| 148 | /** The amount of VRAM available for use as a framebuffer */
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| 149 | unsigned long cbFBMax;
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| 150 | /** The size of the framebuffer and the VBVA buffers at the end of it. */
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| 151 | unsigned long cbView;
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| 152 | /** The current line size in bytes */
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| 153 | uint32_t cbLine;
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| 154 | /** Whether the pre-X-server mode was a VBE mode */
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| 155 | bool fSavedVBEMode;
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| 156 | /** Paramters of the saved pre-X-server VBE mode, invalid if there is none
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| 157 | */
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| 158 | uint16_t cSavedWidth, cSavedHeight, cSavedPitch, cSavedBPP, fSavedFlags;
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| 159 | CloseScreenProcPtr CloseScreen;
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| 160 | /** Default X server procedure for enabling and disabling framebuffer access */
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| 161 | xf86EnableDisableFBAccessProc *EnableDisableFBAccess;
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| 162 | /** Is access to the framebuffer currently allowed? */
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| 163 | Bool accessEnabled;
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| 164 | OptionInfoPtr Options;
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| 165 | /** @todo we never actually free this */
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| 166 | xf86CursorInfoPtr pCurs;
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| 167 | Bool useDevice;
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| 168 | Bool forceSWCursor;
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| 169 | /** Do we know that the guest can handle absolute co-ordinates? */
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| 170 | Bool guestCanAbsolute;
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| 171 | /** Are we currently switched to a virtual terminal? If so, it is not
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| 172 | * safe to touch the hardware. */
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| 173 | Bool vtSwitch;
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| 174 | /** Does this host support sending graphics commands using HGSMI? */
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| 175 | Bool fHaveHGSMI;
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| 176 | /** Number of screens attached */
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| 177 | uint32_t cScreens;
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| 178 | /** Position information for each virtual screen for the purposes of
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| 179 | * sending dirty rectangle information to the right one. */
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| 180 | RTRECT2 aScreenLocation[VBOX_VIDEO_MAX_SCREENS];
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| 181 | /** Has this screen been disabled by the guest? */
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| 182 | Bool afDisabled[VBOX_VIDEO_MAX_SCREENS];
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| 183 | #ifdef VBOXVIDEO_13
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| 184 | /** The virtual crtcs */
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| 185 | struct _xf86Crtc *paCrtcs[VBOX_VIDEO_MAX_SCREENS];
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| 186 | struct _xf86Output *paOutputs[VBOX_VIDEO_MAX_SCREENS];
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| 187 | #endif
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| 188 | /** Offsets of VBVA buffers in video RAM */
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| 189 | uint32_t aoffVBVABuffer[VBOX_VIDEO_MAX_SCREENS];
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| 190 | /** Context information about the VBVA buffers for each screen */
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| 191 | struct VBVABUFFERCONTEXT aVbvaCtx[VBOX_VIDEO_MAX_SCREENS];
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| 192 | /** The current preferred resolution for the screen */
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| 193 | RTRECTSIZE aPreferredSize[VBOX_VIDEO_MAX_SCREENS];
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| 194 | /** HGSMI guest heap context */
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| 195 | HGSMIGUESTCOMMANDCONTEXT guestCtx;
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| 196 | /** Unrestricted horizontal resolution flag. */
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| 197 | Bool fAnyX;
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| 198 | #ifdef VBOX_DRI
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| 199 | Bool useDRI;
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| 200 | int cVisualConfigs;
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| 201 | __GLXvisualConfig *pVisualConfigs;
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| 202 | DRIInfoRec *pDRIInfo;
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| 203 | int drmFD;
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| 204 | #endif
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| 205 | } VBOXRec, *VBOXPtr;
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| 206 |
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| 207 | extern Bool vbox_init(int scrnIndex, VBOXPtr pVBox);
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| 208 | extern Bool vbox_cursor_init (ScreenPtr pScreen);
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| 209 | extern Bool vbox_open (ScrnInfoPtr pScrn, ScreenPtr pScreen, VBOXPtr pVBox);
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| 210 | extern void vbox_close (ScrnInfoPtr pScrn, VBOXPtr pVBox);
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| 211 | extern Bool vbox_device_available(VBOXPtr pVBox);
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| 212 |
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| 213 | extern Bool vboxEnableVbva(ScrnInfoPtr pScrn);
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| 214 | extern void vboxDisableVbva(ScrnInfoPtr pScrn);
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| 215 |
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| 216 | extern Bool vboxEnableGraphicsCap(VBOXPtr pVBox);
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| 217 | extern Bool vboxDisableGraphicsCap(VBOXPtr pVBox);
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| 218 | extern Bool vboxGuestIsSeamless(ScrnInfoPtr pScrn);
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| 219 |
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| 220 | extern Bool vboxGetDisplayChangeRequest(ScrnInfoPtr pScrn, uint32_t *pcx,
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| 221 | uint32_t *pcy, uint32_t *pcBits,
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| 222 | uint32_t *piDisplay);
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| 223 | extern Bool vboxHostLikesVideoMode(ScrnInfoPtr pScrn, uint32_t cx, uint32_t cy, uint32_t cBits);
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| 224 | extern Bool vboxSaveVideoMode(ScrnInfoPtr pScrn, uint32_t cx, uint32_t cy, uint32_t cBits);
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| 225 | extern Bool vboxRetrieveVideoMode(ScrnInfoPtr pScrn, uint32_t *pcx, uint32_t *pcy, uint32_t *pcBits);
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| 226 | extern unsigned vboxNextStandardMode(ScrnInfoPtr pScrn, unsigned cIndex,
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| 227 | uint32_t *pcx, uint32_t *pcy,
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| 228 | uint32_t *pcBits);
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| 229 | extern void vboxGetPreferredMode(ScrnInfoPtr pScrn, uint32_t iScreen,
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| 230 | uint32_t *pcx, uint32_t *pcy,
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| 231 | uint32_t *pcBits);
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| 232 | extern void vboxWriteHostModes(ScrnInfoPtr pScrn, DisplayModePtr pCurrent);
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| 233 | extern void vboxAddModes(ScrnInfoPtr pScrn, uint32_t cxInit,
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| 234 | uint32_t cyInit);
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| 235 |
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| 236 | /* DRI stuff */
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| 237 | extern Bool VBOXDRIScreenInit(int scrnIndex, ScreenPtr pScreen, VBOXPtr pVBox);
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| 238 | extern Bool VBOXDRIFinishScreenInit(ScreenPtr pScreen);
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| 239 | extern void VBOXDRIUpdateStride(ScrnInfoPtr pScrn, VBOXPtr pVBox);
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| 240 | extern void VBOXDRICloseScreen(ScreenPtr pScreen, VBOXPtr pVBox);
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| 241 |
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| 242 | /* EDID generation */
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| 243 | #ifdef VBOXVIDEO_13
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| 244 | extern Bool VBOXEDIDSet(struct _xf86Output *output, DisplayModePtr pmode);
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| 245 | #endif
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| 246 |
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| 247 | /* Utilities */
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| 248 |
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| 249 | static inline VBOXPtr VBOXGetRec(ScrnInfoPtr pScrn)
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| 250 | {
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| 251 | return ((VBOXPtr)pScrn->driverPrivate);
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| 252 | }
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| 253 |
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| 254 | /** Calculate the BPP from the screen depth */
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| 255 | static inline uint16_t vboxBPP(ScrnInfoPtr pScrn)
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| 256 | {
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| 257 | return pScrn->depth == 24 ? 32 : 16;
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| 258 | }
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| 259 |
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| 260 | /** Calculate the scan line length for a display width */
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| 261 | static inline int32_t vboxLineLength(ScrnInfoPtr pScrn, int32_t cDisplayWidth)
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| 262 | {
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| 263 | uint64_t cbLine = ((uint64_t)cDisplayWidth * vboxBPP(pScrn) / 8 + 3) & ~3;
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| 264 | return cbLine < INT32_MAX ? cbLine : INT32_MAX;
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| 265 | }
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| 266 |
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| 267 | /** Calculate the display pitch from the scan line length */
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| 268 | static inline int32_t vboxDisplayPitch(ScrnInfoPtr pScrn, int32_t cbLine)
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| 269 | {
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| 270 | return (int32_t)((uint64_t)cbLine * 8 / vboxBPP(pScrn));
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| 271 | }
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| 272 |
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| 273 | extern void vboxClearVRAM(ScrnInfoPtr pScrn, int32_t cNewX, int32_t cNewY);
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| 274 | extern Bool VBOXSetMode(ScrnInfoPtr pScrn, unsigned cDisplay, unsigned cWidth,
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| 275 | unsigned cHeight, int x, int y);
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| 276 | extern Bool VBOXAdjustScreenPixmap(ScrnInfoPtr pScrn, int width, int height);
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| 277 |
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| 278 | #endif /* _VBOXVIDEO_H_ */
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| 279 |
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