VirtualBox

source: vbox/trunk/src/VBox/GuestHost/OpenGL/include/cr_vreg.h@ 70836

Last change on this file since 70836 was 69500, checked in by vboxsync, 7 years ago

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1/* $Id: cr_vreg.h 69500 2017-10-28 15:14:05Z vboxsync $ */
2/** @file
3 * Visible Regions processing API
4 */
5
6/*
7 * Copyright (C) 2012-2017 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#ifndef ___cr_vreg_h_
19#define ___cr_vreg_h_
20
21#include <iprt/list.h>
22#include <iprt/types.h>
23#include <iprt/mem.h>
24#include <iprt/string.h>
25#include <iprt/assert.h>
26#include <iprt/critsect.h>
27#include <iprt/asm.h>
28
29#ifndef IN_RING0
30# define VBOXVREGDECL(_type) DECLEXPORT(_type)
31#else
32/** @todo r=bird: Using RTDECL is just SOO wrong! */
33# define VBOXVREGDECL(_type) RTDECL(_type)
34#endif
35
36
37
38RT_C_DECLS_BEGIN
39
40typedef struct VBOXVR_LIST
41{
42 RTLISTANCHOR ListHead;
43 uint32_t cEntries;
44} VBOXVR_LIST;
45typedef VBOXVR_LIST *PVBOXVR_LIST;
46typedef VBOXVR_LIST const *PCVBOXVR_LIST;
47
48DECLINLINE(int) VBoxRectCmp(PCRTRECT pRect1, PCRTRECT pRect2)
49{
50 return memcmp(pRect1, pRect2, sizeof(*pRect1));
51}
52
53#ifndef IN_RING0
54# define CR_FLOAT_RCAST(_t, _v) ((_t)((float)(_v) + 0.5))
55
56DECLINLINE(void) VBoxRectScale(PRTRECT pRect, float xScale, float yScale)
57{
58 pRect->xLeft = CR_FLOAT_RCAST(int32_t, pRect->xLeft * xScale);
59 pRect->yTop = CR_FLOAT_RCAST(int32_t, pRect->yTop * yScale);
60 pRect->xRight = CR_FLOAT_RCAST(int32_t, pRect->xRight * xScale);
61 pRect->yBottom = CR_FLOAT_RCAST(int32_t, pRect->yBottom * yScale);
62}
63
64DECLINLINE(void) VBoxRectScaled(PCRTRECT pRect, float xScale, float yScale, PRTRECT pResult)
65{
66 *pResult = *pRect;
67 VBoxRectScale(pResult, xScale, yScale);
68}
69
70DECLINLINE(void) VBoxRectUnscale(PRTRECT pRect, float xScale, float yScale)
71{
72 pRect->xLeft = CR_FLOAT_RCAST(int32_t, pRect->xLeft / xScale);
73 pRect->yTop = CR_FLOAT_RCAST(int32_t, pRect->yTop / yScale);
74 pRect->xRight = CR_FLOAT_RCAST(int32_t, pRect->xRight / xScale);
75 pRect->yBottom = CR_FLOAT_RCAST(int32_t, pRect->yBottom / yScale);
76}
77
78DECLINLINE(void) VBoxRectUnscaled(PCRTRECT pRect, float xScale, float yScale, PRTRECT pResult)
79{
80 *pResult = *pRect;
81 VBoxRectUnscale(pResult, xScale, yScale);
82}
83
84#endif /* IN_RING0 */
85
86DECLINLINE(void) VBoxRectIntersect(PRTRECT pRect1, PCRTRECT pRect2)
87{
88 Assert(pRect1);
89 Assert(pRect2);
90 pRect1->xLeft = RT_MAX(pRect1->xLeft, pRect2->xLeft);
91 pRect1->yTop = RT_MAX(pRect1->yTop, pRect2->yTop);
92 pRect1->xRight = RT_MIN(pRect1->xRight, pRect2->xRight);
93 pRect1->yBottom = RT_MIN(pRect1->yBottom, pRect2->yBottom);
94 /* ensure the rect is valid */
95 pRect1->xRight = RT_MAX(pRect1->xRight, pRect1->xLeft);
96 pRect1->yBottom = RT_MAX(pRect1->yBottom, pRect1->yTop);
97}
98
99DECLINLINE(void) VBoxRectIntersected(PCRTRECT pRect1, PCRTRECT pRect2, PRTRECT pResult)
100{
101 *pResult = *pRect1;
102 VBoxRectIntersect(pResult, pRect2);
103}
104
105
106DECLINLINE(void) VBoxRectTranslate(PRTRECT pRect, int32_t x, int32_t y)
107{
108 pRect->xLeft += x;
109 pRect->yTop += y;
110 pRect->xRight += x;
111 pRect->yBottom += y;
112}
113
114DECLINLINE(void) VBoxRectTranslated(PCRTRECT pRect, int32_t x, int32_t y, PRTRECT pResult)
115{
116 *pResult = *pRect;
117 VBoxRectTranslate(pResult, x, y);
118}
119
120DECLINLINE(void) VBoxRectInvertY(PRTRECT pRect)
121{
122 int32_t y = pRect->yTop;
123 pRect->yTop = pRect->yBottom;
124 pRect->yBottom = y;
125}
126
127DECLINLINE(void) VBoxRectInvertedY(PCRTRECT pRect, PRTRECT pResult)
128{
129 *pResult = *pRect;
130 VBoxRectInvertY(pResult);
131}
132
133DECLINLINE(void) VBoxRectMove(PRTRECT pRect, int32_t x, int32_t y)
134{
135 int32_t cx = pRect->xRight - pRect->xLeft;
136 int32_t cy = pRect->yBottom - pRect->yTop;
137 pRect->xLeft = x;
138 pRect->yTop = y;
139 pRect->xRight = cx + x;
140 pRect->yBottom = cy + y;
141}
142
143DECLINLINE(void) VBoxRectMoved(PCRTRECT pRect, int32_t x, int32_t y, PRTRECT pResult)
144{
145 *pResult = *pRect;
146 VBoxRectMove(pResult, x, y);
147}
148
149DECLINLINE(bool) VBoxRectCovers(PCRTRECT pRect, PCRTRECT pCovered)
150{
151 AssertPtr(pRect);
152 AssertPtr(pCovered);
153 if (pRect->xLeft > pCovered->xLeft)
154 return false;
155 if (pRect->yTop > pCovered->yTop)
156 return false;
157 if (pRect->xRight < pCovered->xRight)
158 return false;
159 if (pRect->yBottom < pCovered->yBottom)
160 return false;
161 return true;
162}
163
164DECLINLINE(bool) VBoxRectIsZero(PCRTRECT pRect)
165{
166 return pRect->xLeft == pRect->xRight || pRect->yTop == pRect->yBottom;
167}
168
169DECLINLINE(bool) VBoxRectIsIntersect(PCRTRECT pRect1, PCRTRECT pRect2)
170{
171 return !( (pRect1->xLeft < pRect2->xLeft && pRect1->xRight <= pRect2->xLeft)
172 || (pRect2->xLeft < pRect1->xLeft && pRect2->xRight <= pRect1->xLeft)
173 || (pRect1->yTop < pRect2->yTop && pRect1->yBottom <= pRect2->yTop)
174 || (pRect2->yTop < pRect1->yTop && pRect2->yBottom <= pRect1->yTop) );
175}
176
177DECLINLINE(uint32_t) VBoxVrListRectsCount(PCVBOXVR_LIST pList)
178{
179 return pList->cEntries;
180}
181
182DECLINLINE(bool) VBoxVrListIsEmpty(PCVBOXVR_LIST pList)
183{
184 return !VBoxVrListRectsCount(pList);
185}
186
187DECLINLINE(void) VBoxVrListInit(PVBOXVR_LIST pList)
188{
189 RTListInit(&pList->ListHead);
190 pList->cEntries = 0;
191}
192
193VBOXVREGDECL(void) VBoxVrListClear(PVBOXVR_LIST pList);
194
195/* moves list data to pDstList and empties the pList */
196VBOXVREGDECL(void) VBoxVrListMoveTo(PVBOXVR_LIST pList, PVBOXVR_LIST pDstList);
197
198VBOXVREGDECL(void) VBoxVrListTranslate(PVBOXVR_LIST pList, int32_t x, int32_t y);
199
200VBOXVREGDECL(int) VBoxVrListCmp(PCVBOXVR_LIST pList1, PCVBOXVR_LIST pList2);
201
202VBOXVREGDECL(int) VBoxVrListRectsSet(PVBOXVR_LIST pList, uint32_t cRects, PCRTRECT paRects, bool *pfChanged);
203VBOXVREGDECL(int) VBoxVrListRectsAdd(PVBOXVR_LIST pList, uint32_t cRects, PCRTRECT paRects, bool *pfChanged);
204VBOXVREGDECL(int) VBoxVrListRectsSubst(PVBOXVR_LIST pList, uint32_t cRects, PCRTRECT paRects, bool *pfChanged);
205VBOXVREGDECL(int) VBoxVrListRectsGet(PVBOXVR_LIST pList, uint32_t cRects, PRTRECT paRects);
206
207VBOXVREGDECL(int) VBoxVrListClone(PCVBOXVR_LIST pList, VBOXVR_LIST *pDstList);
208
209/* NOTE: with the current implementation the VBoxVrListIntersect is faster than VBoxVrListRectsIntersect,
210 * i.e. VBoxVrListRectsIntersect is actually a convenience function that create a temporary list and calls
211 * VBoxVrListIntersect internally. */
212VBOXVREGDECL(int) VBoxVrListRectsIntersect(PVBOXVR_LIST pList, uint32_t cRects, PCRTRECT paRects, bool *pfChanged);
213VBOXVREGDECL(int) VBoxVrListIntersect(PVBOXVR_LIST pList, PCVBOXVR_LIST pList2, bool *pfChanged);
214
215VBOXVREGDECL(int) VBoxVrInit(void);
216VBOXVREGDECL(void) VBoxVrTerm(void);
217
218typedef struct VBOXVR_LIST_ITERATOR
219{
220 PVBOXVR_LIST pList;
221 PRTLISTNODE pNextEntry;
222} VBOXVR_LIST_ITERATOR;
223typedef VBOXVR_LIST_ITERATOR *PVBOXVR_LIST_ITERATOR;
224typedef VBOXVR_LIST_ITERATOR const *PCVBOXVR_LIST_ITERATOR;
225
226DECLINLINE(void) VBoxVrListIterInit(PVBOXVR_LIST pList, PVBOXVR_LIST_ITERATOR pIter)
227{
228 pIter->pList = pList;
229 pIter->pNextEntry = pList->ListHead.pNext;
230}
231
232typedef struct VBOXVR_REG
233{
234 RTLISTNODE ListEntry;
235 RTRECT Rect;
236} VBOXVR_REG;
237typedef VBOXVR_REG *PVBOXVR_REG;
238typedef VBOXVR_REG const *PCVBOXVR_REG;
239
240#define PVBOXVR_REG_FROM_ENTRY(_pEntry) RT_FROM_MEMBER(_pEntry, VBOXVR_REG, ListEntry)
241
242DECLINLINE(PCRTRECT) VBoxVrListIterNext(PVBOXVR_LIST_ITERATOR pIter)
243{
244 PRTLISTNODE pNextEntry = pIter->pNextEntry;
245 if (pNextEntry != &pIter->pList->ListHead)
246 {
247 PCRTRECT pRect = &PVBOXVR_REG_FROM_ENTRY(pNextEntry)->Rect;
248 pIter->pNextEntry = pNextEntry->pNext;
249 return pRect;
250 }
251 return NULL;
252}
253
254typedef struct VBOXVR_COMPOSITOR_ENTRY
255{
256 RTLISTNODE Node;
257 VBOXVR_LIST Vr;
258 uint32_t cRefs;
259} VBOXVR_COMPOSITOR_ENTRY;
260typedef VBOXVR_COMPOSITOR_ENTRY *PVBOXVR_COMPOSITOR_ENTRY;
261typedef VBOXVR_COMPOSITOR_ENTRY const *PCVBOXVR_COMPOSITOR_ENTRY;
262
263struct VBOXVR_COMPOSITOR;
264
265typedef DECLCALLBACK(void) FNVBOXVRCOMPOSITOR_ENTRY_RELEASED(const struct VBOXVR_COMPOSITOR *pCompositor,
266 PVBOXVR_COMPOSITOR_ENTRY pEntry,
267 PVBOXVR_COMPOSITOR_ENTRY pReplacingEntry);
268typedef FNVBOXVRCOMPOSITOR_ENTRY_RELEASED *PFNVBOXVRCOMPOSITOR_ENTRY_RELEASED;
269
270typedef struct VBOXVR_COMPOSITOR
271{
272 RTLISTANCHOR List;
273 PFNVBOXVRCOMPOSITOR_ENTRY_RELEASED pfnEntryReleased;
274} VBOXVR_COMPOSITOR;
275typedef VBOXVR_COMPOSITOR *PVBOXVR_COMPOSITOR;
276typedef VBOXVR_COMPOSITOR const *PCVBOXVR_COMPOSITOR;
277
278typedef DECLCALLBACK(bool) FNVBOXVRCOMPOSITOR_VISITOR(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry,
279 void *pvVisitor);
280typedef FNVBOXVRCOMPOSITOR_VISITOR *PFNVBOXVRCOMPOSITOR_VISITOR;
281
282VBOXVREGDECL(void) VBoxVrCompositorInit(PVBOXVR_COMPOSITOR pCompositor, PFNVBOXVRCOMPOSITOR_ENTRY_RELEASED pfnEntryReleased);
283VBOXVREGDECL(void) VBoxVrCompositorClear(PVBOXVR_COMPOSITOR pCompositor);
284VBOXVREGDECL(void) VBoxVrCompositorRegionsClear(PVBOXVR_COMPOSITOR pCompositor, bool *pfChanged);
285VBOXVREGDECL(void) VBoxVrCompositorEntryInit(PVBOXVR_COMPOSITOR_ENTRY pEntry);
286
287DECLINLINE(bool) VBoxVrCompositorEntryIsInList(PCVBOXVR_COMPOSITOR_ENTRY pEntry)
288{
289 return !VBoxVrListIsEmpty(&pEntry->Vr);
290}
291
292#define CRBLT_F_LINEAR 0x00000001
293#define CRBLT_F_INVERT_SRC_YCOORDS 0x00000002
294#define CRBLT_F_INVERT_DST_YCOORDS 0x00000004
295#define CRBLT_F_INVERT_YCOORDS (CRBLT_F_INVERT_SRC_YCOORDS | CRBLT_F_INVERT_DST_YCOORDS)
296/* the blit operation with discard the source alpha channel values and set the destination alpha values to 1.0 */
297#define CRBLT_F_NOALPHA 0x00000010
298
299#define CRBLT_FTYPE_XOR CRBLT_F_INVERT_YCOORDS
300#define CRBLT_FTYPE_OR (CRBLT_F_LINEAR | CRBLT_F_NOALPHA)
301#define CRBLT_FOP_COMBINE(_f1, _f2) ((((_f1) ^ (_f2)) & CRBLT_FTYPE_XOR) | (((_f1) | (_f2)) & CRBLT_FTYPE_OR))
302
303#define CRBLT_FLAGS_FROM_FILTER(_f) ( ((_f) & GL_LINEAR) ? CRBLT_F_LINEAR : 0)
304#define CRBLT_FILTER_FROM_FLAGS(_f) (((_f) & CRBLT_F_LINEAR) ? GL_LINEAR : GL_NEAREST)
305
306/* compositor regions changed */
307#define VBOXVR_COMPOSITOR_CF_REGIONS_CHANGED 0x00000001
308/* other entries changed along while doing current entry modification
309 * always comes with VBOXVR_COMPOSITOR_CF_ENTRY_REGIONS_CHANGED */
310#define VBOXVR_COMPOSITOR_CF_OTHER_ENTRIES_REGIONS_CHANGED 0x00000002
311/* only current entry regions changed
312 * can come wither with VBOXVR_COMPOSITOR_CF_REGIONS_CHANGED or with VBOXVR_COMPOSITOR_CF_ENTRY_REPLACED */
313#define VBOXVR_COMPOSITOR_CF_ENTRY_REGIONS_CHANGED 0x00000004
314/* the given entry has replaced some other entry, while overal regions did NOT change.
315 * always comes with VBOXVR_COMPOSITOR_CF_ENTRY_REGIONS_CHANGED */
316#define VBOXVR_COMPOSITOR_CF_ENTRY_REPLACED 0x00000008
317
318
319VBOXVREGDECL(bool) VBoxVrCompositorEntryRemove(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry);
320VBOXVREGDECL(bool) VBoxVrCompositorEntryReplace(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry,
321 PVBOXVR_COMPOSITOR_ENTRY pNewEntry);
322VBOXVREGDECL(int) VBoxVrCompositorEntryRegionsAdd(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry,
323 uint32_t cRegions, PCRTRECT paRegions,
324 PVBOXVR_COMPOSITOR_ENTRY *ppReplacedEntry, uint32_t *pfChangeFlags);
325VBOXVREGDECL(int) VBoxVrCompositorEntryRegionsSubst(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry,
326 uint32_t cRegions, PCRTRECT paRegions, bool *pfChanged);
327VBOXVREGDECL(int) VBoxVrCompositorEntryRegionsSet(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry,
328 uint32_t cRegions, PCRTRECT paRegions, bool *pfChanged);
329VBOXVREGDECL(int) VBoxVrCompositorEntryRegionsIntersect(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry,
330 uint32_t cRegions, PCRTRECT paRegions, bool *pfChanged);
331VBOXVREGDECL(int) VBoxVrCompositorEntryListIntersect(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry,
332 PCVBOXVR_LIST pList2, bool *pfChanged);
333VBOXVREGDECL(int) VBoxVrCompositorEntryRegionsIntersectAll(PVBOXVR_COMPOSITOR pCompositor, uint32_t cRegions, PCRTRECT paRegions,
334 bool *pfChanged);
335VBOXVREGDECL(int) VBoxVrCompositorEntryListIntersectAll(PVBOXVR_COMPOSITOR pCompositor, PCVBOXVR_LIST pList2, bool *pfChanged);
336VBOXVREGDECL(int) VBoxVrCompositorEntryRegionsTranslate(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ENTRY pEntry,
337 int32_t x, int32_t y, bool *pfChanged);
338VBOXVREGDECL(void) VBoxVrCompositorVisit(PVBOXVR_COMPOSITOR pCompositor, PFNVBOXVRCOMPOSITOR_VISITOR pfnVisitor, void *pvVisitor);
339
340DECLINLINE(bool) VBoxVrCompositorIsEmpty(PCVBOXVR_COMPOSITOR pCompositor)
341{
342 return RTListIsEmpty(&pCompositor->List);
343}
344
345typedef struct VBOXVR_COMPOSITOR_ITERATOR
346{
347 PVBOXVR_COMPOSITOR pCompositor;
348 PRTLISTNODE pNextEntry;
349} VBOXVR_COMPOSITOR_ITERATOR;
350typedef VBOXVR_COMPOSITOR_ITERATOR *PVBOXVR_COMPOSITOR_ITERATOR;
351
352typedef struct VBOXVR_COMPOSITOR_CONST_ITERATOR
353{
354 PCVBOXVR_COMPOSITOR pCompositor;
355 PCRTLISTNODE pNextEntry;
356} VBOXVR_COMPOSITOR_CONST_ITERATOR;
357typedef VBOXVR_COMPOSITOR_CONST_ITERATOR *PVBOXVR_COMPOSITOR_CONST_ITERATOR;
358
359DECLINLINE(void) VBoxVrCompositorIterInit(PVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_ITERATOR pIter)
360{
361 pIter->pCompositor = pCompositor;
362 pIter->pNextEntry = pCompositor->List.pNext;
363}
364
365DECLINLINE(void) VBoxVrCompositorConstIterInit(PCVBOXVR_COMPOSITOR pCompositor, PVBOXVR_COMPOSITOR_CONST_ITERATOR pIter)
366{
367 pIter->pCompositor = pCompositor;
368 pIter->pNextEntry = pCompositor->List.pNext;
369}
370
371#define VBOXVR_COMPOSITOR_ENTRY_FROM_NODE(_p) RT_FROM_MEMBER(_p, VBOXVR_COMPOSITOR_ENTRY, Node)
372#define VBOXVR_COMPOSITOR_CONST_ENTRY_FROM_NODE(_p) RT_FROM_MEMBER(_p, const VBOXVR_COMPOSITOR_ENTRY, Node)
373
374DECLINLINE(PVBOXVR_COMPOSITOR_ENTRY) VBoxVrCompositorIterNext(PVBOXVR_COMPOSITOR_ITERATOR pIter)
375{
376 PRTLISTNODE pNextEntry = pIter->pNextEntry;
377 if (pNextEntry != &pIter->pCompositor->List)
378 {
379 PVBOXVR_COMPOSITOR_ENTRY pEntry = VBOXVR_COMPOSITOR_ENTRY_FROM_NODE(pNextEntry);
380 pIter->pNextEntry = pNextEntry->pNext;
381 return pEntry;
382 }
383 return NULL;
384}
385
386DECLINLINE(PCVBOXVR_COMPOSITOR_ENTRY) VBoxVrCompositorConstIterNext(PVBOXVR_COMPOSITOR_CONST_ITERATOR pIter)
387{
388 PCRTLISTNODE pNextEntry = pIter->pNextEntry;
389 if (pNextEntry != &pIter->pCompositor->List)
390 {
391 PCVBOXVR_COMPOSITOR_ENTRY pEntry = VBOXVR_COMPOSITOR_CONST_ENTRY_FROM_NODE(pNextEntry);
392 pIter->pNextEntry = pNextEntry->pNext;
393 return pEntry;
394 }
395 return NULL;
396}
397
398typedef struct VBOXVR_TEXTURE
399{
400 int32_t width;
401 int32_t height;
402 uint32_t target;
403 uint32_t hwid;
404} VBOXVR_TEXTURE;
405typedef VBOXVR_TEXTURE *PVBOXVR_TEXTURE;
406typedef VBOXVR_TEXTURE const *PCVBOXVR_TEXTURE;
407
408RT_C_DECLS_END
409
410#endif
411
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