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b311480e | 1 | // Created on: 2012-01-26 |
2 | // Created by: Kirill GAVRILOV | |
4fe56619 | 3 | // Copyright (c) 2012 OPEN CASCADE SAS |
b311480e | 4 | // |
5 | // The content of this file is subject to the Open CASCADE Technology Public | |
6 | // License Version 6.5 (the "License"). You may not use the content of this file | |
7 | // except in compliance with the License. Please obtain a copy of the License | |
8 | // at http://www.opencascade.org and read it completely before using this file. | |
9 | // | |
10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
12 | // | |
13 | // The Original Code and all software distributed under the License is | |
14 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
15 | // Initial Developer hereby disclaims all such warranties, including without | |
16 | // limitation, any warranties of merchantability, fitness for a particular | |
17 | // purpose or non-infringement. Please see the License for the specific terms | |
18 | // and conditions governing the rights and limitations under the License. | |
19 | ||
58655684 | 20 | #if defined(_WIN32) |
5f8b738e | 21 | #include <windows.h> |
22 | #endif | |
23 | ||
2166f0fa SK |
24 | #include <OpenGl_Context.hxx> |
25 | ||
5f8b738e | 26 | #include <OpenGl_ArbVBO.hxx> |
5e27df78 | 27 | #include <OpenGl_ArbTBO.hxx> |
28 | #include <OpenGl_ArbIns.hxx> | |
58655684 | 29 | #include <OpenGl_ArbDbg.hxx> |
5f8b738e | 30 | #include <OpenGl_ExtFBO.hxx> |
37eb4787 | 31 | #include <OpenGl_ExtGS.hxx> |
5f8b738e | 32 | #include <OpenGl_GlCore20.hxx> |
33 | ||
cbf18624 | 34 | #include <Message_Messenger.hxx> |
a174a3c5 | 35 | #include <NCollection_Vector.hxx> |
36 | ||
2bd4c032 | 37 | #include <Standard_ProgramError.hxx> |
38 | ||
58655684 | 39 | #if defined(_WIN32) |
5f8b738e | 40 | // |
41 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
42 | #include <dlfcn.h> | |
43 | #else | |
44 | #include <GL/glx.h> // glXGetProcAddress() | |
45 | #endif | |
46 | ||
f0430952 | 47 | // GL_NVX_gpu_memory_info |
48 | #ifndef GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX | |
49 | enum | |
50 | { | |
51 | GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX = 0x9047, | |
52 | GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX = 0x9048, | |
53 | GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX = 0x9049, | |
54 | GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX = 0x904A, | |
55 | GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX = 0x904B | |
56 | }; | |
57 | #endif | |
58 | ||
2166f0fa SK |
59 | IMPLEMENT_STANDARD_HANDLE (OpenGl_Context, Standard_Transient) |
60 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Context, Standard_Transient) | |
61 | ||
5f8b738e | 62 | //! Make record shorter to retrieve function pointer using variable with same name |
63 | #define FindProcShort(theStruct, theFunc) FindProc(#theFunc, theStruct->theFunc) | |
2166f0fa | 64 | |
5e27df78 | 65 | namespace |
66 | { | |
67 | static const Handle(OpenGl_Resource) NULL_GL_RESOURCE; | |
4269bd1b | 68 | static const GLdouble OpenGl_DefaultPlaneEq[] = {0.0, 0.0, 0.0, 0.0}; |
5e27df78 | 69 | }; |
70 | ||
2166f0fa SK |
71 | // ======================================================================= |
72 | // function : OpenGl_Context | |
73 | // purpose : | |
74 | // ======================================================================= | |
58655684 | 75 | OpenGl_Context::OpenGl_Context (const Handle(OpenGl_Caps)& theCaps) |
5f8b738e | 76 | : core12 (NULL), |
77 | core13 (NULL), | |
78 | core14 (NULL), | |
79 | core15 (NULL), | |
80 | core20 (NULL), | |
58655684 | 81 | caps (!theCaps.IsNull() ? theCaps : new OpenGl_Caps()), |
bf75be98 | 82 | arbNPTW(Standard_False), |
5f8b738e | 83 | arbVBO (NULL), |
5e27df78 | 84 | arbTBO (NULL), |
85 | arbIns (NULL), | |
58655684 | 86 | arbDbg (NULL), |
5f8b738e | 87 | extFBO (NULL), |
37eb4787 | 88 | extGS (NULL), |
bf75be98 | 89 | extBgra(Standard_False), |
90 | extAnis(Standard_False), | |
f0430952 | 91 | atiMem (Standard_False), |
92 | nvxMem (Standard_False), | |
5e27df78 | 93 | mySharedResources (new OpenGl_ResourcesMap()), |
a174a3c5 | 94 | myDelayed (new OpenGl_DelayReleaseMap()), |
95 | myReleaseQueue (new OpenGl_ResourcesQueue()), | |
4269bd1b | 96 | myClippingState (), |
5f8b738e | 97 | myGlLibHandle (NULL), |
98 | myGlCore20 (NULL), | |
eafb234b | 99 | myMaxTexDim (1024), |
4269bd1b | 100 | myMaxClipPlanes (6), |
101 | myAnisoMax (1), | |
5f8b738e | 102 | myGlVerMajor (0), |
103 | myGlVerMinor (0), | |
664cae74 | 104 | myIsFeedback (Standard_False), |
5f8b738e | 105 | myIsInitialized (Standard_False) |
2166f0fa | 106 | { |
5f8b738e | 107 | #if defined(MAC_OS_X_VERSION_10_3) && !defined(MACOSX_USE_GLX) |
108 | // Vendors can not extend functionality on this system | |
109 | // and developers are limited to OpenGL support provided by Mac OS X SDK. | |
110 | // We retrieve function pointers from system library | |
111 | // to generalize extensions support on all platforms. | |
112 | // In this way we also reach binary compatibility benefit between OS releases | |
113 | // if some newest functionality is optionally used. | |
114 | // Notice that GL version / extension availability checks are required | |
115 | // because function pointers may be available but not functionality itself | |
116 | // (depends on renderer). | |
117 | myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY); | |
118 | #endif | |
2166f0fa SK |
119 | } |
120 | ||
121 | // ======================================================================= | |
122 | // function : ~OpenGl_Context | |
123 | // purpose : | |
124 | // ======================================================================= | |
125 | OpenGl_Context::~OpenGl_Context() | |
126 | { | |
5e27df78 | 127 | // release clean up queue |
128 | ReleaseDelayed(); | |
129 | ||
130 | // release shared resources if any | |
131 | if (((const Handle(Standard_Transient)& )mySharedResources)->GetRefCount() <= 1) | |
132 | { | |
133 | for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources); | |
134 | anIter.More(); anIter.Next()) | |
135 | { | |
136 | anIter.Value()->Release (this); | |
137 | } | |
138 | } | |
139 | mySharedResources.Nullify(); | |
a174a3c5 | 140 | myDelayed.Nullify(); |
5e27df78 | 141 | |
cbf18624 | 142 | if (arbDbg != NULL |
143 | && caps->contextDebug) | |
144 | { | |
145 | // reset callback | |
146 | void* aPtr = NULL; | |
147 | glGetPointerv (GL_DEBUG_CALLBACK_USER_PARAM_ARB, &aPtr); | |
148 | if (aPtr == this) | |
149 | { | |
150 | arbDbg->glDebugMessageCallbackARB (NULL, NULL); | |
151 | } | |
152 | } | |
153 | ||
5f8b738e | 154 | delete myGlCore20; |
155 | delete arbVBO; | |
58655684 | 156 | delete arbTBO; |
157 | delete arbIns; | |
158 | delete arbDbg; | |
5f8b738e | 159 | delete extFBO; |
37eb4787 | 160 | delete extGS; |
5f8b738e | 161 | } |
162 | ||
bf75be98 | 163 | // ======================================================================= |
164 | // function : MaxDegreeOfAnisotropy | |
165 | // purpose : | |
166 | // ======================================================================= | |
167 | Standard_Integer OpenGl_Context::MaxDegreeOfAnisotropy() const | |
168 | { | |
169 | return myAnisoMax; | |
170 | } | |
171 | ||
172 | // ======================================================================= | |
173 | // function : MaxTextureSize | |
174 | // purpose : | |
175 | // ======================================================================= | |
176 | Standard_Integer OpenGl_Context::MaxTextureSize() const | |
177 | { | |
178 | return myMaxTexDim; | |
179 | } | |
180 | ||
4269bd1b | 181 | // ======================================================================= |
182 | // function : MaxClipPlanes | |
183 | // purpose : | |
184 | // ======================================================================= | |
185 | Standard_Integer OpenGl_Context::MaxClipPlanes() const | |
186 | { | |
187 | return myMaxClipPlanes; | |
188 | } | |
189 | ||
5e27df78 | 190 | // ======================================================================= |
191 | // function : Share | |
192 | // purpose : | |
193 | // ======================================================================= | |
194 | void OpenGl_Context::Share (const Handle(OpenGl_Context)& theShareCtx) | |
195 | { | |
196 | if (!theShareCtx.IsNull()) | |
197 | { | |
198 | mySharedResources = theShareCtx->mySharedResources; | |
a174a3c5 | 199 | myDelayed = theShareCtx->myDelayed; |
5e27df78 | 200 | myReleaseQueue = theShareCtx->myReleaseQueue; |
201 | } | |
202 | } | |
203 | ||
4fe56619 | 204 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
205 | ||
86fa64d9 | 206 | // ======================================================================= |
207 | // function : IsCurrent | |
208 | // purpose : | |
209 | // ======================================================================= | |
210 | Standard_Boolean OpenGl_Context::IsCurrent() const | |
211 | { | |
58655684 | 212 | #if defined(_WIN32) |
86fa64d9 | 213 | if (myWindowDC == NULL || myGContext == NULL) |
214 | { | |
215 | return Standard_False; | |
216 | } | |
217 | return (( (HDC )myWindowDC == wglGetCurrentDC()) | |
218 | && ((HGLRC )myGContext == wglGetCurrentContext())); | |
219 | #else | |
220 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) | |
221 | { | |
222 | return Standard_False; | |
223 | } | |
224 | ||
225 | return ( ((Display* )myDisplay == glXGetCurrentDisplay()) | |
226 | && ((GLXContext )myGContext == glXGetCurrentContext()) | |
227 | && ((GLXDrawable )myWindow == glXGetCurrentDrawable())); | |
228 | #endif | |
229 | } | |
230 | ||
2bd4c032 | 231 | // ======================================================================= |
232 | // function : MakeCurrent | |
233 | // purpose : | |
234 | // ======================================================================= | |
235 | Standard_Boolean OpenGl_Context::MakeCurrent() | |
236 | { | |
58655684 | 237 | #if defined(_WIN32) |
86fa64d9 | 238 | if (myWindowDC == NULL || myGContext == NULL) |
2bd4c032 | 239 | { |
86fa64d9 | 240 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); |
241 | return Standard_False; | |
242 | } | |
243 | ||
244 | // technically it should be safe to activate already bound GL context | |
245 | // however some drivers (Intel etc.) may FAIL doing this for unknown reason | |
246 | if (IsCurrent()) | |
247 | { | |
248 | return Standard_True; | |
249 | } | |
250 | else if (wglMakeCurrent ((HDC )myWindowDC, (HGLRC )myGContext) != TRUE) | |
251 | { | |
252 | // notice that glGetError() couldn't be used here! | |
253 | wchar_t* aMsgBuff = NULL; | |
254 | DWORD anErrorCode = GetLastError(); | |
255 | FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, | |
256 | NULL, anErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (wchar_t* )&aMsgBuff, 0, NULL); | |
cbf18624 | 257 | TCollection_ExtendedString aMsg ("wglMakeCurrent() has failed. "); |
86fa64d9 | 258 | if (aMsgBuff != NULL) |
259 | { | |
cbf18624 | 260 | aMsg += (Standard_ExtString )aMsgBuff; |
86fa64d9 | 261 | LocalFree (aMsgBuff); |
262 | } | |
cbf18624 | 263 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, (unsigned int )anErrorCode, GL_DEBUG_SEVERITY_HIGH_ARB, aMsg); |
2bd4c032 | 264 | return Standard_False; |
265 | } | |
266 | #else | |
86fa64d9 | 267 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) |
268 | { | |
269 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
270 | return Standard_False; | |
271 | } | |
272 | ||
273 | if (!glXMakeCurrent ((Display* )myDisplay, (GLXDrawable )myWindow, (GLXContext )myGContext)) | |
2bd4c032 | 274 | { |
275 | // if there is no current context it might be impossible to use glGetError() correctly | |
cbf18624 | 276 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
277 | "glXMakeCurrent() has failed!"); | |
2bd4c032 | 278 | return Standard_False; |
279 | } | |
280 | #endif | |
281 | return Standard_True; | |
282 | } | |
283 | ||
5e27df78 | 284 | // ======================================================================= |
285 | // function : SwapBuffers | |
286 | // purpose : | |
287 | // ======================================================================= | |
288 | void OpenGl_Context::SwapBuffers() | |
289 | { | |
58655684 | 290 | #if defined(_WIN32) |
5e27df78 | 291 | if ((HDC )myWindowDC != NULL) |
292 | { | |
293 | ::SwapBuffers ((HDC )myWindowDC); | |
294 | glFlush(); | |
295 | } | |
296 | #else | |
297 | if ((Display* )myDisplay != NULL) | |
298 | { | |
299 | glXSwapBuffers ((Display* )myDisplay, (GLXDrawable )myWindow); | |
300 | } | |
301 | #endif | |
302 | } | |
303 | ||
4fe56619 | 304 | #endif // __APPLE__ |
305 | ||
5f8b738e | 306 | // ======================================================================= |
307 | // function : findProc | |
308 | // purpose : | |
309 | // ======================================================================= | |
310 | void* OpenGl_Context::findProc (const char* theFuncName) | |
311 | { | |
58655684 | 312 | #if defined(_WIN32) |
5f8b738e | 313 | return wglGetProcAddress (theFuncName); |
314 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
315 | return (myGlLibHandle != NULL) ? dlsym (myGlLibHandle, theFuncName) : NULL; | |
316 | #else | |
317 | return (void* )glXGetProcAddress ((const GLubyte* )theFuncName); | |
318 | #endif | |
2166f0fa SK |
319 | } |
320 | ||
321 | // ======================================================================= | |
322 | // function : CheckExtension | |
323 | // purpose : | |
324 | // ======================================================================= | |
2bd4c032 | 325 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtName) const |
2166f0fa | 326 | { |
5f8b738e | 327 | if (theExtName == NULL) |
328 | { | |
329 | std::cerr << "CheckExtension called with NULL string!\n"; | |
330 | return Standard_False; | |
331 | } | |
5f8b738e | 332 | |
333 | // available since OpenGL 3.0 | |
334 | // and the ONLY way to check extensions with OpenGL 3.1+ core profile | |
2bd4c032 | 335 | /**if (IsGlGreaterEqual (3, 0)) |
5f8b738e | 336 | { |
337 | GLint anExtNb = 0; | |
338 | glGetIntegerv (GL_NUM_EXTENSIONS, &anExtNb); | |
339 | for (GLint anIter = 0; anIter < anExtNb; ++anIter) | |
340 | { | |
341 | const char* anExtension = (const char* )core30->glGetStringi (GL_EXTENSIONS, (GLuint )anIter); | |
342 | if (anExtension[anExtNameLen] == '\0' && | |
343 | strncmp (anExtension, theExtName, anExtNameLen) == 0) | |
344 | { | |
345 | return Standard_True; | |
346 | } | |
347 | } | |
348 | return Standard_False; | |
349 | }*/ | |
350 | ||
351 | // use old way with huge string for all extensions | |
352 | const char* anExtString = (const char* )glGetString (GL_EXTENSIONS); | |
353 | if (anExtString == NULL) | |
354 | { | |
cbf18624 | 355 | Messanger()->Send ("TKOpenGL: glGetString (GL_EXTENSIONS) has returned NULL! No GL context?", Message_Warning); |
2166f0fa SK |
356 | return Standard_False; |
357 | } | |
58655684 | 358 | return CheckExtension (anExtString, theExtName); |
359 | } | |
360 | ||
361 | // ======================================================================= | |
362 | // function : CheckExtension | |
363 | // purpose : | |
364 | // ======================================================================= | |
365 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtString, | |
366 | const char* theExtName) | |
367 | { | |
368 | if (theExtString == NULL) | |
369 | { | |
370 | return Standard_False; | |
371 | } | |
2166f0fa SK |
372 | |
373 | // Search for theExtName in the extensions string. | |
374 | // Use of strstr() is not sufficient because extension names can be prefixes of other extension names. | |
58655684 | 375 | char* aPtrIter = (char* )theExtString; |
376 | const char* aPtrEnd = aPtrIter + strlen (theExtString); | |
377 | const size_t anExtNameLen = strlen (theExtName); | |
2166f0fa SK |
378 | while (aPtrIter < aPtrEnd) |
379 | { | |
6a7d83c4 | 380 | const size_t n = strcspn (aPtrIter, " "); |
5f8b738e | 381 | if ((n == anExtNameLen) && (strncmp (aPtrIter, theExtName, anExtNameLen) == 0)) |
382 | { | |
2166f0fa | 383 | return Standard_True; |
5f8b738e | 384 | } |
2166f0fa SK |
385 | aPtrIter += (n + 1); |
386 | } | |
387 | return Standard_False; | |
388 | } | |
389 | ||
4fe56619 | 390 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
391 | ||
2166f0fa SK |
392 | // ======================================================================= |
393 | // function : Init | |
394 | // purpose : | |
395 | // ======================================================================= | |
f0430952 | 396 | Standard_Boolean OpenGl_Context::Init() |
2166f0fa | 397 | { |
2bd4c032 | 398 | if (myIsInitialized) |
5f8b738e | 399 | { |
f0430952 | 400 | return Standard_True; |
5f8b738e | 401 | } |
2bd4c032 | 402 | |
58655684 | 403 | #if defined(_WIN32) |
2bd4c032 | 404 | myWindowDC = (Aspect_Handle )wglGetCurrentDC(); |
405 | myGContext = (Aspect_RenderingContext )wglGetCurrentContext(); | |
406 | #else | |
407 | myDisplay = (Aspect_Display )glXGetCurrentDisplay(); | |
408 | myGContext = (Aspect_RenderingContext )glXGetCurrentContext(); | |
409 | myWindow = (Aspect_Drawable )glXGetCurrentDrawable(); | |
410 | #endif | |
f0430952 | 411 | if (myGContext == NULL) |
412 | { | |
413 | return Standard_False; | |
414 | } | |
2bd4c032 | 415 | |
416 | init(); | |
417 | myIsInitialized = Standard_True; | |
f0430952 | 418 | return Standard_True; |
2bd4c032 | 419 | } |
420 | ||
4fe56619 | 421 | #endif // __APPLE__ |
422 | ||
2bd4c032 | 423 | // ======================================================================= |
424 | // function : Init | |
425 | // purpose : | |
426 | // ======================================================================= | |
58655684 | 427 | #if defined(_WIN32) |
f0430952 | 428 | Standard_Boolean OpenGl_Context::Init (const Aspect_Handle theWindow, |
429 | const Aspect_Handle theWindowDC, | |
430 | const Aspect_RenderingContext theGContext) | |
4fe56619 | 431 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
432 | Standard_Boolean OpenGl_Context::Init (const void* theGContext) | |
2bd4c032 | 433 | #else |
f0430952 | 434 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theWindow, |
435 | const Aspect_Display theDisplay, | |
436 | const Aspect_RenderingContext theGContext) | |
2bd4c032 | 437 | #endif |
438 | { | |
439 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called only once!"); | |
58655684 | 440 | #if defined(_WIN32) |
2bd4c032 | 441 | myWindow = theWindow; |
442 | myGContext = theGContext; | |
2bd4c032 | 443 | myWindowDC = theWindowDC; |
4fe56619 | 444 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
445 | myGContext = (void* )theGContext; | |
2bd4c032 | 446 | #else |
4fe56619 | 447 | myWindow = theWindow; |
448 | myGContext = theGContext; | |
2bd4c032 | 449 | myDisplay = theDisplay; |
450 | #endif | |
86fa64d9 | 451 | if (myGContext == NULL || !MakeCurrent()) |
f0430952 | 452 | { |
453 | return Standard_False; | |
454 | } | |
2bd4c032 | 455 | |
456 | init(); | |
457 | myIsInitialized = Standard_True; | |
f0430952 | 458 | return Standard_True; |
5f8b738e | 459 | } |
460 | ||
461 | // ======================================================================= | |
462 | // function : ResetErrors | |
463 | // purpose : | |
464 | // ======================================================================= | |
465 | void OpenGl_Context::ResetErrors() | |
466 | { | |
467 | while (glGetError() != GL_NO_ERROR) | |
468 | { | |
469 | // | |
470 | } | |
471 | } | |
472 | ||
473 | // ======================================================================= | |
474 | // function : readGlVersion | |
475 | // purpose : | |
476 | // ======================================================================= | |
477 | void OpenGl_Context::readGlVersion() | |
478 | { | |
479 | // reset values | |
480 | myGlVerMajor = 0; | |
481 | myGlVerMinor = 0; | |
482 | ||
483 | // available since OpenGL 3.0 | |
86325709 | 484 | GLint aMajor = 0, aMinor = 0; |
5f8b738e | 485 | glGetIntegerv (GL_MAJOR_VERSION, &aMajor); |
486 | glGetIntegerv (GL_MINOR_VERSION, &aMinor); | |
86325709 | 487 | // glGetError() sometimes does not report an error here even if |
488 | // GL does not know GL_MAJOR_VERSION and GL_MINOR_VERSION constants. | |
489 | // This happens on some rendereres like e.g. Cygwin MESA. | |
490 | // Thus checking additionally if GL has put anything to | |
491 | // the output variables. | |
492 | if (glGetError() == GL_NO_ERROR && aMajor != 0 && aMinor != 0) | |
5f8b738e | 493 | { |
494 | myGlVerMajor = aMajor; | |
495 | myGlVerMinor = aMinor; | |
496 | return; | |
497 | } | |
498 | ResetErrors(); | |
499 | ||
500 | // Read version string. | |
501 | // Notice that only first two numbers splitted by point '2.1 XXXXX' are significant. | |
502 | // Following trash (after space) is vendor-specific. | |
503 | // New drivers also returns micro version of GL like '3.3.0' which has no meaning | |
504 | // and should be considered as vendor-specific too. | |
505 | const char* aVerStr = (const char* )glGetString (GL_VERSION); | |
506 | if (aVerStr == NULL || *aVerStr == '\0') | |
507 | { | |
508 | // invalid GL context | |
509 | return; | |
510 | } | |
511 | ||
512 | // parse string for major number | |
513 | char aMajorStr[32]; | |
514 | char aMinorStr[32]; | |
515 | size_t aMajIter = 0; | |
516 | while (aVerStr[aMajIter] >= '0' && aVerStr[aMajIter] <= '9') | |
517 | { | |
518 | ++aMajIter; | |
519 | } | |
520 | if (aMajIter == 0 || aMajIter >= sizeof(aMajorStr)) | |
521 | { | |
522 | return; | |
523 | } | |
524 | memcpy (aMajorStr, aVerStr, aMajIter); | |
525 | aMajorStr[aMajIter] = '\0'; | |
526 | ||
527 | // parse string for minor number | |
86325709 | 528 | aVerStr += aMajIter + 1; |
529 | size_t aMinIter = 0; | |
5f8b738e | 530 | while (aVerStr[aMinIter] >= '0' && aVerStr[aMinIter] <= '9') |
531 | { | |
532 | ++aMinIter; | |
533 | } | |
86325709 | 534 | if (aMinIter == 0 || aMinIter >= sizeof(aMinorStr)) |
5f8b738e | 535 | { |
536 | return; | |
537 | } | |
86325709 | 538 | memcpy (aMinorStr, aVerStr, aMinIter); |
539 | aMinorStr[aMinIter] = '\0'; | |
5f8b738e | 540 | |
541 | // read numbers | |
542 | myGlVerMajor = atoi (aMajorStr); | |
543 | myGlVerMinor = atoi (aMinorStr); | |
544 | ||
545 | if (myGlVerMajor <= 0) | |
546 | { | |
547 | myGlVerMajor = 0; | |
548 | myGlVerMinor = 0; | |
549 | } | |
550 | } | |
551 | ||
58655684 | 552 | static Standard_CString THE_DBGMSG_UNKNOWN = "UNKNOWN"; |
553 | static Standard_CString THE_DBGMSG_SOURCES[] = | |
554 | { | |
cbf18624 | 555 | ".OpenGL", // GL_DEBUG_SOURCE_API_ARB |
556 | ".WinSystem", // GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB | |
557 | ".GLSL", // GL_DEBUG_SOURCE_SHADER_COMPILER_ARB | |
558 | ".3rdParty", // GL_DEBUG_SOURCE_THIRD_PARTY_ARB | |
559 | "", // GL_DEBUG_SOURCE_APPLICATION_ARB | |
560 | ".Other" // GL_DEBUG_SOURCE_OTHER_ARB | |
58655684 | 561 | }; |
562 | ||
563 | static Standard_CString THE_DBGMSG_TYPES[] = | |
564 | { | |
cbf18624 | 565 | "Error", // GL_DEBUG_TYPE_ERROR_ARB |
566 | "Deprecated", // GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB | |
567 | "Undef. behavior", // GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB | |
568 | "Portability", // GL_DEBUG_TYPE_PORTABILITY_ARB | |
569 | "Performance", // GL_DEBUG_TYPE_PERFORMANCE_ARB | |
570 | "Other" // GL_DEBUG_TYPE_OTHER_ARB | |
58655684 | 571 | }; |
572 | ||
573 | static Standard_CString THE_DBGMSG_SEV_HIGH = "High"; // GL_DEBUG_SEVERITY_HIGH_ARB | |
574 | static Standard_CString THE_DBGMSG_SEV_MEDIUM = "Medium"; // GL_DEBUG_SEVERITY_MEDIUM_ARB | |
575 | static Standard_CString THE_DBGMSG_SEV_LOW = "Low"; // GL_DEBUG_SEVERITY_LOW_ARB | |
576 | ||
cbf18624 | 577 | //! Callback for GL_ARB_debug_output extension |
58655684 | 578 | static void APIENTRY debugCallbackWrap(unsigned int theSource, |
579 | unsigned int theType, | |
580 | unsigned int theId, | |
581 | unsigned int theSeverity, | |
582 | int /*theLength*/, | |
583 | const char* theMessage, | |
cbf18624 | 584 | void* theUserParam) |
585 | { | |
586 | OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
587 | aCtx->PushMessage (theSource, theType, theId, theSeverity, theMessage); | |
588 | } | |
589 | ||
590 | // ======================================================================= | |
591 | // function : PushMessage | |
592 | // purpose : | |
593 | // ======================================================================= | |
594 | void OpenGl_Context::PushMessage (const unsigned int theSource, | |
595 | const unsigned int theType, | |
596 | const unsigned int theId, | |
597 | const unsigned int theSeverity, | |
598 | const TCollection_ExtendedString& theMessage) | |
58655684 | 599 | { |
600 | //OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
601 | Standard_CString& aSrc = (theSource >= GL_DEBUG_SOURCE_API_ARB | |
602 | && theSource <= GL_DEBUG_SOURCE_OTHER_ARB) | |
603 | ? THE_DBGMSG_SOURCES[theSource - GL_DEBUG_SOURCE_API_ARB] | |
604 | : THE_DBGMSG_UNKNOWN; | |
605 | Standard_CString& aType = (theType >= GL_DEBUG_TYPE_ERROR_ARB | |
606 | && theType <= GL_DEBUG_TYPE_OTHER_ARB) | |
607 | ? THE_DBGMSG_TYPES[theType - GL_DEBUG_TYPE_ERROR_ARB] | |
608 | : THE_DBGMSG_UNKNOWN; | |
609 | Standard_CString& aSev = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB | |
610 | ? THE_DBGMSG_SEV_HIGH | |
611 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
612 | ? THE_DBGMSG_SEV_MEDIUM | |
613 | : THE_DBGMSG_SEV_LOW); | |
cbf18624 | 614 | Message_Gravity aGrav = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB |
615 | ? Message_Alarm | |
616 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
617 | ? Message_Warning | |
618 | : Message_Info); | |
619 | ||
620 | TCollection_ExtendedString aMsg; | |
621 | aMsg += "TKOpenGl"; aMsg += aSrc; | |
622 | aMsg += " | Type: "; aMsg += aType; | |
623 | aMsg += " | ID: "; aMsg += (Standard_Integer )theId; | |
624 | aMsg += " | Severity: "; aMsg += aSev; | |
625 | aMsg += " | Message:\n "; | |
626 | aMsg += theMessage; | |
627 | ||
628 | Messanger()->Send (aMsg, aGrav); | |
58655684 | 629 | } |
630 | ||
5f8b738e | 631 | // ======================================================================= |
632 | // function : init | |
633 | // purpose : | |
634 | // ======================================================================= | |
635 | void OpenGl_Context::init() | |
636 | { | |
637 | // read version | |
638 | readGlVersion(); | |
639 | ||
bf75be98 | 640 | arbNPTW = CheckExtension ("GL_ARB_texture_non_power_of_two"); |
641 | extBgra = CheckExtension ("GL_EXT_bgra"); | |
642 | extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic"); | |
643 | atiMem = CheckExtension ("GL_ATI_meminfo"); | |
644 | nvxMem = CheckExtension ("GL_NVX_gpu_memory_info"); | |
645 | ||
4269bd1b | 646 | // get number of maximum clipping planes |
647 | glGetIntegerv (GL_MAX_CLIP_PLANES, &myMaxClipPlanes); | |
bf75be98 | 648 | glGetIntegerv (GL_MAX_TEXTURE_SIZE, &myMaxTexDim); |
649 | if (extAnis) | |
650 | { | |
651 | glGetIntegerv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &myAnisoMax); | |
652 | } | |
f0430952 | 653 | |
4269bd1b | 654 | myClippingState.Init (myMaxClipPlanes); |
655 | ||
58655684 | 656 | // initialize debug context extension |
657 | if (CheckExtension ("GL_ARB_debug_output")) | |
658 | { | |
659 | arbDbg = new OpenGl_ArbDbg(); | |
660 | memset (arbDbg, 0, sizeof(OpenGl_ArbDbg)); // nullify whole structure | |
661 | if (!FindProcShort (arbDbg, glDebugMessageControlARB) | |
662 | || !FindProcShort (arbDbg, glDebugMessageInsertARB) | |
663 | || !FindProcShort (arbDbg, glDebugMessageCallbackARB) | |
664 | || !FindProcShort (arbDbg, glGetDebugMessageLogARB)) | |
665 | { | |
666 | delete arbDbg; | |
667 | arbDbg = NULL; | |
668 | } | |
669 | if (arbDbg != NULL | |
670 | && caps->contextDebug) | |
671 | { | |
672 | // setup default callback | |
673 | arbDbg->glDebugMessageCallbackARB (debugCallbackWrap, this); | |
fcdbe201 | 674 | #ifdef DEB |
58655684 | 675 | glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB); |
fcdbe201 | 676 | #endif |
58655684 | 677 | } |
678 | } | |
679 | ||
5f8b738e | 680 | // initialize VBO extension (ARB) |
681 | if (CheckExtension ("GL_ARB_vertex_buffer_object")) | |
2166f0fa SK |
682 | { |
683 | arbVBO = new OpenGl_ArbVBO(); | |
5f8b738e | 684 | memset (arbVBO, 0, sizeof(OpenGl_ArbVBO)); // nullify whole structure |
685 | if (!FindProcShort (arbVBO, glGenBuffersARB) | |
686 | || !FindProcShort (arbVBO, glBindBufferARB) | |
687 | || !FindProcShort (arbVBO, glBufferDataARB) | |
688 | || !FindProcShort (arbVBO, glDeleteBuffersARB)) | |
2166f0fa SK |
689 | { |
690 | delete arbVBO; | |
691 | arbVBO = NULL; | |
692 | } | |
693 | } | |
694 | ||
5e27df78 | 695 | // initialize TBO extension (ARB) |
696 | if (CheckExtension ("GL_ARB_texture_buffer_object")) | |
697 | { | |
698 | arbTBO = new OpenGl_ArbTBO(); | |
699 | memset (arbTBO, 0, sizeof(OpenGl_ArbTBO)); // nullify whole structure | |
700 | if (!FindProcShort (arbTBO, glTexBufferARB)) | |
701 | { | |
702 | delete arbTBO; | |
703 | arbTBO = NULL; | |
704 | } | |
705 | } | |
706 | ||
707 | // initialize hardware instancing extension (ARB) | |
708 | if (CheckExtension ("GL_ARB_draw_instanced")) | |
709 | { | |
710 | arbIns = new OpenGl_ArbIns(); | |
711 | memset (arbIns, 0, sizeof(OpenGl_ArbIns)); // nullify whole structure | |
712 | if (!FindProcShort (arbIns, glDrawArraysInstancedARB) | |
713 | || !FindProcShort (arbIns, glDrawElementsInstancedARB)) | |
714 | { | |
715 | delete arbIns; | |
716 | arbIns = NULL; | |
717 | } | |
718 | } | |
719 | ||
5f8b738e | 720 | // initialize FBO extension (EXT) |
721 | if (CheckExtension ("GL_EXT_framebuffer_object")) | |
2166f0fa SK |
722 | { |
723 | extFBO = new OpenGl_ExtFBO(); | |
5f8b738e | 724 | memset (extFBO, 0, sizeof(OpenGl_ExtFBO)); // nullify whole structure |
725 | if (!FindProcShort (extFBO, glGenFramebuffersEXT) | |
726 | || !FindProcShort (extFBO, glDeleteFramebuffersEXT) | |
727 | || !FindProcShort (extFBO, glBindFramebufferEXT) | |
728 | || !FindProcShort (extFBO, glFramebufferTexture2DEXT) | |
729 | || !FindProcShort (extFBO, glCheckFramebufferStatusEXT) | |
730 | || !FindProcShort (extFBO, glGenRenderbuffersEXT) | |
731 | || !FindProcShort (extFBO, glDeleteRenderbuffersEXT) | |
732 | || !FindProcShort (extFBO, glBindRenderbufferEXT) | |
733 | || !FindProcShort (extFBO, glRenderbufferStorageEXT) | |
1a7dfdb7 | 734 | || !FindProcShort (extFBO, glFramebufferRenderbufferEXT) |
735 | || !FindProcShort (extFBO, glGenerateMipmapEXT)) | |
2166f0fa SK |
736 | { |
737 | delete extFBO; | |
738 | extFBO = NULL; | |
739 | } | |
740 | } | |
5f8b738e | 741 | |
37eb4787 | 742 | // initialize GS extension (EXT) |
743 | if (CheckExtension ("GL_EXT_geometry_shader4")) | |
744 | { | |
745 | extGS = new OpenGl_ExtGS(); | |
746 | memset (extGS, 0, sizeof(OpenGl_ExtGS)); // nullify whole structure | |
747 | if (!FindProcShort (extGS, glProgramParameteriEXT)) | |
748 | { | |
749 | delete extGS; | |
750 | extGS = NULL; | |
751 | } | |
752 | } | |
753 | ||
5f8b738e | 754 | myGlCore20 = new OpenGl_GlCore20(); |
755 | memset (myGlCore20, 0, sizeof(OpenGl_GlCore20)); // nullify whole structure | |
756 | ||
86325709 | 757 | // Check if OpenGL 1.2 core functionality is actually present |
758 | Standard_Boolean hasGlCore12 = IsGlGreaterEqual (1, 2) | |
759 | && FindProcShort (myGlCore20, glBlendColor) | |
760 | && FindProcShort (myGlCore20, glBlendEquation) | |
761 | && FindProcShort (myGlCore20, glDrawRangeElements) | |
762 | && FindProcShort (myGlCore20, glTexImage3D) | |
763 | && FindProcShort (myGlCore20, glTexSubImage3D) | |
764 | && FindProcShort (myGlCore20, glCopyTexSubImage3D); | |
765 | ||
766 | // Check if OpenGL 1.3 core functionality is actually present | |
767 | Standard_Boolean hasGlCore13 = IsGlGreaterEqual (1, 3) | |
768 | && FindProcShort (myGlCore20, glActiveTexture) | |
769 | && FindProcShort (myGlCore20, glSampleCoverage) | |
770 | && FindProcShort (myGlCore20, glCompressedTexImage3D) | |
771 | && FindProcShort (myGlCore20, glCompressedTexImage2D) | |
772 | && FindProcShort (myGlCore20, glCompressedTexImage1D) | |
773 | && FindProcShort (myGlCore20, glCompressedTexSubImage3D) | |
774 | && FindProcShort (myGlCore20, glCompressedTexSubImage2D) | |
775 | && FindProcShort (myGlCore20, glCompressedTexSubImage1D) | |
776 | && FindProcShort (myGlCore20, glGetCompressedTexImage) | |
777 | // deprecated | |
778 | && FindProcShort (myGlCore20, glClientActiveTexture) | |
779 | && FindProcShort (myGlCore20, glMultiTexCoord1d) | |
780 | && FindProcShort (myGlCore20, glMultiTexCoord1dv) | |
781 | && FindProcShort (myGlCore20, glMultiTexCoord1f) | |
782 | && FindProcShort (myGlCore20, glMultiTexCoord1fv) | |
783 | && FindProcShort (myGlCore20, glMultiTexCoord1i) | |
784 | && FindProcShort (myGlCore20, glMultiTexCoord1iv) | |
785 | && FindProcShort (myGlCore20, glMultiTexCoord1s) | |
786 | && FindProcShort (myGlCore20, glMultiTexCoord1sv) | |
787 | && FindProcShort (myGlCore20, glMultiTexCoord2d) | |
788 | && FindProcShort (myGlCore20, glMultiTexCoord2dv) | |
789 | && FindProcShort (myGlCore20, glMultiTexCoord2f) | |
790 | && FindProcShort (myGlCore20, glMultiTexCoord2fv) | |
791 | && FindProcShort (myGlCore20, glMultiTexCoord2i) | |
792 | && FindProcShort (myGlCore20, glMultiTexCoord2iv) | |
793 | && FindProcShort (myGlCore20, glMultiTexCoord2s) | |
794 | && FindProcShort (myGlCore20, glMultiTexCoord2sv) | |
795 | && FindProcShort (myGlCore20, glMultiTexCoord3d) | |
796 | && FindProcShort (myGlCore20, glMultiTexCoord3dv) | |
797 | && FindProcShort (myGlCore20, glMultiTexCoord3f) | |
798 | && FindProcShort (myGlCore20, glMultiTexCoord3fv) | |
799 | && FindProcShort (myGlCore20, glMultiTexCoord3i) | |
800 | && FindProcShort (myGlCore20, glMultiTexCoord3iv) | |
801 | && FindProcShort (myGlCore20, glMultiTexCoord3s) | |
802 | && FindProcShort (myGlCore20, glMultiTexCoord3sv) | |
803 | && FindProcShort (myGlCore20, glMultiTexCoord4d) | |
804 | && FindProcShort (myGlCore20, glMultiTexCoord4dv) | |
805 | && FindProcShort (myGlCore20, glMultiTexCoord4f) | |
806 | && FindProcShort (myGlCore20, glMultiTexCoord4fv) | |
807 | && FindProcShort (myGlCore20, glMultiTexCoord4i) | |
808 | && FindProcShort (myGlCore20, glMultiTexCoord4iv) | |
809 | && FindProcShort (myGlCore20, glMultiTexCoord4s) | |
810 | && FindProcShort (myGlCore20, glMultiTexCoord4sv) | |
811 | && FindProcShort (myGlCore20, glLoadTransposeMatrixf) | |
812 | && FindProcShort (myGlCore20, glLoadTransposeMatrixd) | |
813 | && FindProcShort (myGlCore20, glMultTransposeMatrixf) | |
814 | && FindProcShort (myGlCore20, glMultTransposeMatrixd); | |
815 | ||
816 | // Check if OpenGL 1.4 core functionality is actually present | |
817 | Standard_Boolean hasGlCore14 = IsGlGreaterEqual (1, 4) | |
818 | && FindProcShort (myGlCore20, glBlendFuncSeparate) | |
819 | && FindProcShort (myGlCore20, glMultiDrawArrays) | |
820 | && FindProcShort (myGlCore20, glMultiDrawElements) | |
821 | && FindProcShort (myGlCore20, glPointParameterf) | |
822 | && FindProcShort (myGlCore20, glPointParameterfv) | |
823 | && FindProcShort (myGlCore20, glPointParameteri) | |
824 | && FindProcShort (myGlCore20, glPointParameteriv); | |
825 | ||
826 | // Check if OpenGL 1.5 core functionality is actually present | |
827 | Standard_Boolean hasGlCore15 = IsGlGreaterEqual (1, 5) | |
828 | && FindProcShort (myGlCore20, glGenQueries) | |
829 | && FindProcShort (myGlCore20, glDeleteQueries) | |
830 | && FindProcShort (myGlCore20, glIsQuery) | |
831 | && FindProcShort (myGlCore20, glBeginQuery) | |
832 | && FindProcShort (myGlCore20, glEndQuery) | |
833 | && FindProcShort (myGlCore20, glGetQueryiv) | |
834 | && FindProcShort (myGlCore20, glGetQueryObjectiv) | |
835 | && FindProcShort (myGlCore20, glGetQueryObjectuiv) | |
836 | && FindProcShort (myGlCore20, glBindBuffer) | |
837 | && FindProcShort (myGlCore20, glDeleteBuffers) | |
838 | && FindProcShort (myGlCore20, glGenBuffers) | |
839 | && FindProcShort (myGlCore20, glIsBuffer) | |
840 | && FindProcShort (myGlCore20, glBufferData) | |
841 | && FindProcShort (myGlCore20, glBufferSubData) | |
842 | && FindProcShort (myGlCore20, glGetBufferSubData) | |
843 | && FindProcShort (myGlCore20, glMapBuffer) | |
844 | && FindProcShort (myGlCore20, glUnmapBuffer) | |
845 | && FindProcShort (myGlCore20, glGetBufferParameteriv) | |
846 | && FindProcShort (myGlCore20, glGetBufferPointerv); | |
847 | ||
848 | // Check if OpenGL 2.0 core functionality is actually present | |
849 | Standard_Boolean hasGlCore20 = IsGlGreaterEqual (2, 0) | |
850 | && FindProcShort (myGlCore20, glBlendEquationSeparate) | |
851 | && FindProcShort (myGlCore20, glDrawBuffers) | |
852 | && FindProcShort (myGlCore20, glStencilOpSeparate) | |
853 | && FindProcShort (myGlCore20, glStencilFuncSeparate) | |
854 | && FindProcShort (myGlCore20, glStencilMaskSeparate) | |
855 | && FindProcShort (myGlCore20, glAttachShader) | |
856 | && FindProcShort (myGlCore20, glBindAttribLocation) | |
857 | && FindProcShort (myGlCore20, glCompileShader) | |
858 | && FindProcShort (myGlCore20, glCreateProgram) | |
859 | && FindProcShort (myGlCore20, glCreateShader) | |
860 | && FindProcShort (myGlCore20, glDeleteProgram) | |
861 | && FindProcShort (myGlCore20, glDeleteShader) | |
862 | && FindProcShort (myGlCore20, glDetachShader) | |
863 | && FindProcShort (myGlCore20, glDisableVertexAttribArray) | |
864 | && FindProcShort (myGlCore20, glEnableVertexAttribArray) | |
865 | && FindProcShort (myGlCore20, glGetActiveAttrib) | |
866 | && FindProcShort (myGlCore20, glGetActiveUniform) | |
867 | && FindProcShort (myGlCore20, glGetAttachedShaders) | |
868 | && FindProcShort (myGlCore20, glGetAttribLocation) | |
869 | && FindProcShort (myGlCore20, glGetProgramiv) | |
870 | && FindProcShort (myGlCore20, glGetProgramInfoLog) | |
871 | && FindProcShort (myGlCore20, glGetShaderiv) | |
872 | && FindProcShort (myGlCore20, glGetShaderInfoLog) | |
873 | && FindProcShort (myGlCore20, glGetShaderSource) | |
874 | && FindProcShort (myGlCore20, glGetUniformLocation) | |
875 | && FindProcShort (myGlCore20, glGetUniformfv) | |
876 | && FindProcShort (myGlCore20, glGetUniformiv) | |
877 | && FindProcShort (myGlCore20, glGetVertexAttribdv) | |
878 | && FindProcShort (myGlCore20, glGetVertexAttribfv) | |
879 | && FindProcShort (myGlCore20, glGetVertexAttribiv) | |
880 | && FindProcShort (myGlCore20, glGetVertexAttribPointerv) | |
881 | && FindProcShort (myGlCore20, glIsProgram) | |
882 | && FindProcShort (myGlCore20, glIsShader) | |
883 | && FindProcShort (myGlCore20, glLinkProgram) | |
884 | && FindProcShort (myGlCore20, glShaderSource) | |
885 | && FindProcShort (myGlCore20, glUseProgram) | |
886 | && FindProcShort (myGlCore20, glUniform1f) | |
887 | && FindProcShort (myGlCore20, glUniform2f) | |
888 | && FindProcShort (myGlCore20, glUniform3f) | |
889 | && FindProcShort (myGlCore20, glUniform4f) | |
890 | && FindProcShort (myGlCore20, glUniform1i) | |
891 | && FindProcShort (myGlCore20, glUniform2i) | |
892 | && FindProcShort (myGlCore20, glUniform3i) | |
893 | && FindProcShort (myGlCore20, glUniform4i) | |
894 | && FindProcShort (myGlCore20, glUniform1fv) | |
895 | && FindProcShort (myGlCore20, glUniform2fv) | |
896 | && FindProcShort (myGlCore20, glUniform3fv) | |
897 | && FindProcShort (myGlCore20, glUniform4fv) | |
898 | && FindProcShort (myGlCore20, glUniform1iv) | |
899 | && FindProcShort (myGlCore20, glUniform2iv) | |
900 | && FindProcShort (myGlCore20, glUniform3iv) | |
901 | && FindProcShort (myGlCore20, glUniform4iv) | |
902 | && FindProcShort (myGlCore20, glUniformMatrix2fv) | |
903 | && FindProcShort (myGlCore20, glUniformMatrix3fv) | |
904 | && FindProcShort (myGlCore20, glUniformMatrix4fv) | |
905 | && FindProcShort (myGlCore20, glValidateProgram) | |
906 | && FindProcShort (myGlCore20, glVertexAttrib1d) | |
907 | && FindProcShort (myGlCore20, glVertexAttrib1dv) | |
908 | && FindProcShort (myGlCore20, glVertexAttrib1f) | |
909 | && FindProcShort (myGlCore20, glVertexAttrib1fv) | |
910 | && FindProcShort (myGlCore20, glVertexAttrib1s) | |
911 | && FindProcShort (myGlCore20, glVertexAttrib1sv) | |
912 | && FindProcShort (myGlCore20, glVertexAttrib2d) | |
913 | && FindProcShort (myGlCore20, glVertexAttrib2dv) | |
914 | && FindProcShort (myGlCore20, glVertexAttrib2f) | |
915 | && FindProcShort (myGlCore20, glVertexAttrib2fv) | |
916 | && FindProcShort (myGlCore20, glVertexAttrib2s) | |
917 | && FindProcShort (myGlCore20, glVertexAttrib2sv) | |
918 | && FindProcShort (myGlCore20, glVertexAttrib3d) | |
919 | && FindProcShort (myGlCore20, glVertexAttrib3dv) | |
920 | && FindProcShort (myGlCore20, glVertexAttrib3f) | |
921 | && FindProcShort (myGlCore20, glVertexAttrib3fv) | |
922 | && FindProcShort (myGlCore20, glVertexAttrib3s) | |
923 | && FindProcShort (myGlCore20, glVertexAttrib3sv) | |
924 | && FindProcShort (myGlCore20, glVertexAttrib4Nbv) | |
925 | && FindProcShort (myGlCore20, glVertexAttrib4Niv) | |
926 | && FindProcShort (myGlCore20, glVertexAttrib4Nsv) | |
927 | && FindProcShort (myGlCore20, glVertexAttrib4Nub) | |
928 | && FindProcShort (myGlCore20, glVertexAttrib4Nubv) | |
929 | && FindProcShort (myGlCore20, glVertexAttrib4Nuiv) | |
930 | && FindProcShort (myGlCore20, glVertexAttrib4Nusv) | |
931 | && FindProcShort (myGlCore20, glVertexAttrib4bv) | |
932 | && FindProcShort (myGlCore20, glVertexAttrib4d) | |
933 | && FindProcShort (myGlCore20, glVertexAttrib4dv) | |
934 | && FindProcShort (myGlCore20, glVertexAttrib4f) | |
935 | && FindProcShort (myGlCore20, glVertexAttrib4fv) | |
936 | && FindProcShort (myGlCore20, glVertexAttrib4iv) | |
937 | && FindProcShort (myGlCore20, glVertexAttrib4s) | |
938 | && FindProcShort (myGlCore20, glVertexAttrib4sv) | |
939 | && FindProcShort (myGlCore20, glVertexAttrib4ubv) | |
940 | && FindProcShort (myGlCore20, glVertexAttrib4uiv) | |
941 | && FindProcShort (myGlCore20, glVertexAttrib4usv) | |
942 | && FindProcShort (myGlCore20, glVertexAttribPointer); | |
943 | ||
944 | if (!hasGlCore12) | |
945 | { | |
946 | myGlVerMajor = 1; | |
947 | myGlVerMinor = 1; | |
948 | return; | |
5f8b738e | 949 | } |
86325709 | 950 | else |
5f8b738e | 951 | { |
86325709 | 952 | core12 = myGlCore20; |
5f8b738e | 953 | } |
86325709 | 954 | if (!hasGlCore13) |
5f8b738e | 955 | { |
86325709 | 956 | myGlVerMajor = 1; |
957 | myGlVerMinor = 2; | |
958 | return; | |
5f8b738e | 959 | } |
86325709 | 960 | else |
961 | { | |
962 | core13 = myGlCore20; | |
5f8b738e | 963 | } |
86325709 | 964 | if(!hasGlCore14) |
965 | { | |
966 | myGlVerMajor = 1; | |
967 | myGlVerMinor = 3; | |
968 | return; | |
5f8b738e | 969 | } |
86325709 | 970 | else |
5f8b738e | 971 | { |
5f8b738e | 972 | core14 = myGlCore20; |
86325709 | 973 | } |
974 | if(!hasGlCore15) | |
975 | { | |
976 | myGlVerMajor = 1; | |
977 | myGlVerMinor = 4; | |
978 | return; | |
979 | } | |
980 | else | |
981 | { | |
5f8b738e | 982 | core15 = myGlCore20; |
86325709 | 983 | } |
984 | if(!hasGlCore20) | |
985 | { | |
986 | myGlVerMajor = 1; | |
987 | myGlVerMinor = 5; | |
988 | } | |
989 | else | |
990 | { | |
5f8b738e | 991 | core20 = myGlCore20; |
992 | } | |
2166f0fa | 993 | } |
664cae74 | 994 | // ======================================================================= |
995 | // function : IsFeedback | |
996 | // purpose : | |
997 | // ======================================================================= | |
998 | Standard_Boolean OpenGl_Context::IsFeedback() const | |
999 | { | |
1000 | return myIsFeedback; | |
1001 | } | |
1002 | ||
1003 | // ======================================================================= | |
1004 | // function : SetFeedback | |
1005 | // purpose : | |
1006 | // ======================================================================= | |
1007 | void OpenGl_Context::SetFeedback (const Standard_Boolean theFeedbackOn) | |
1008 | { | |
1009 | myIsFeedback = theFeedbackOn; | |
1010 | } | |
f0430952 | 1011 | |
1012 | // ======================================================================= | |
1013 | // function : MemoryInfo | |
1014 | // purpose : | |
1015 | // ======================================================================= | |
1016 | Standard_Size OpenGl_Context::AvailableMemory() const | |
1017 | { | |
1018 | if (atiMem) | |
1019 | { | |
1020 | // this is actually information for VBO pool | |
1021 | // however because pools are mostly shared | |
1022 | // it can be used for total GPU memory estimations | |
1023 | GLint aMemInfo[4]; | |
1024 | aMemInfo[0] = 0; | |
1025 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aMemInfo); | |
1026 | // returned value is in KiB, however this maybe changed in future | |
1027 | return Standard_Size(aMemInfo[0]) * 1024; | |
1028 | } | |
1029 | else if (nvxMem) | |
1030 | { | |
1031 | // current available dedicated video memory (in KiB), currently unused GPU memory | |
1032 | GLint aMemInfo = 0; | |
1033 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aMemInfo); | |
1034 | return Standard_Size(aMemInfo) * 1024; | |
1035 | } | |
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | // ======================================================================= | |
1040 | // function : MemoryInfo | |
1041 | // purpose : | |
1042 | // ======================================================================= | |
1043 | TCollection_AsciiString OpenGl_Context::MemoryInfo() const | |
1044 | { | |
1045 | TCollection_AsciiString anInfo; | |
1046 | if (atiMem) | |
1047 | { | |
1048 | GLint aValues[4]; | |
1049 | memset (aValues, 0, sizeof(aValues)); | |
1050 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aValues); | |
1051 | ||
1052 | // total memory free in the pool | |
1053 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValues[0] / 1024) + " MiB\n"; | |
1054 | ||
1055 | // largest available free block in the pool | |
1056 | anInfo += TCollection_AsciiString (" Largest free block: ") + (aValues[1] / 1024) + " MiB\n"; | |
1057 | if (aValues[2] != aValues[0]) | |
1058 | { | |
1059 | // total auxiliary memory free | |
1060 | anInfo += TCollection_AsciiString (" Free memory: ") + (aValues[2] / 1024) + " MiB\n"; | |
1061 | } | |
1062 | } | |
1063 | else if (nvxMem) | |
1064 | { | |
1065 | //current available dedicated video memory (in KiB), currently unused GPU memory | |
1066 | GLint aValue = 0; | |
1067 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aValue); | |
1068 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValue / 1024) + " MiB\n"; | |
1069 | ||
1070 | // dedicated video memory, total size (in KiB) of the GPU memory | |
1071 | GLint aDedicated = 0; | |
1072 | glGetIntegerv (GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &aDedicated); | |
1073 | anInfo += TCollection_AsciiString (" GPU memory: ") + (aDedicated / 1024) + " MiB\n"; | |
1074 | ||
1075 | // total available memory, total size (in KiB) of the memory available for allocations | |
1076 | glGetIntegerv (GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &aValue); | |
1077 | if (aValue != aDedicated) | |
1078 | { | |
1079 | // different only for special configurations | |
1080 | anInfo += TCollection_AsciiString (" Total memory: ") + (aValue / 1024) + " MiB\n"; | |
1081 | } | |
1082 | } | |
1083 | return anInfo; | |
1084 | } | |
5e27df78 | 1085 | |
1086 | ||
1087 | // ======================================================================= | |
1088 | // function : GetResource | |
1089 | // purpose : | |
1090 | // ======================================================================= | |
1091 | const Handle(OpenGl_Resource)& OpenGl_Context::GetResource (const TCollection_AsciiString& theKey) const | |
1092 | { | |
1093 | return mySharedResources->IsBound (theKey) ? mySharedResources->Find (theKey) : NULL_GL_RESOURCE; | |
1094 | } | |
1095 | ||
1096 | // ======================================================================= | |
1097 | // function : ShareResource | |
1098 | // purpose : | |
1099 | // ======================================================================= | |
1100 | Standard_Boolean OpenGl_Context::ShareResource (const TCollection_AsciiString& theKey, | |
1101 | const Handle(OpenGl_Resource)& theResource) | |
1102 | { | |
1103 | if (theKey.IsEmpty() || theResource.IsNull()) | |
1104 | { | |
1105 | return Standard_False; | |
1106 | } | |
1107 | return mySharedResources->Bind (theKey, theResource); | |
1108 | } | |
1109 | ||
1110 | // ======================================================================= | |
1111 | // function : ReleaseResource | |
1112 | // purpose : | |
1113 | // ======================================================================= | |
a174a3c5 | 1114 | void OpenGl_Context::ReleaseResource (const TCollection_AsciiString& theKey, |
1115 | const Standard_Boolean theToDelay) | |
5e27df78 | 1116 | { |
1117 | if (!mySharedResources->IsBound (theKey)) | |
1118 | { | |
1119 | return; | |
1120 | } | |
1121 | const Handle(OpenGl_Resource)& aRes = mySharedResources->Find (theKey); | |
1122 | if (aRes->GetRefCount() > 1) | |
1123 | { | |
1124 | return; | |
1125 | } | |
1126 | ||
a174a3c5 | 1127 | if (theToDelay) |
1128 | { | |
1129 | myDelayed->Bind (theKey, 1); | |
1130 | } | |
1131 | else | |
1132 | { | |
1133 | aRes->Release (this); | |
1134 | mySharedResources->UnBind (theKey); | |
1135 | } | |
5e27df78 | 1136 | } |
1137 | ||
1138 | // ======================================================================= | |
1139 | // function : DelayedRelease | |
1140 | // purpose : | |
1141 | // ======================================================================= | |
1142 | void OpenGl_Context::DelayedRelease (Handle(OpenGl_Resource)& theResource) | |
1143 | { | |
1144 | myReleaseQueue->Push (theResource); | |
1145 | theResource.Nullify(); | |
1146 | } | |
1147 | ||
1148 | // ======================================================================= | |
1149 | // function : ReleaseDelayed | |
1150 | // purpose : | |
1151 | // ======================================================================= | |
1152 | void OpenGl_Context::ReleaseDelayed() | |
1153 | { | |
a174a3c5 | 1154 | // release queued elements |
5e27df78 | 1155 | while (!myReleaseQueue->IsEmpty()) |
1156 | { | |
1157 | myReleaseQueue->Front()->Release (this); | |
1158 | myReleaseQueue->Pop(); | |
1159 | } | |
a174a3c5 | 1160 | |
1161 | // release delayed shared resoruces | |
1162 | NCollection_Vector<TCollection_AsciiString> aDeadList; | |
1163 | for (NCollection_DataMap<TCollection_AsciiString, Standard_Integer>::Iterator anIter (*myDelayed); | |
1164 | anIter.More(); anIter.Next()) | |
1165 | { | |
1166 | if (++anIter.ChangeValue() <= 2) | |
1167 | { | |
1168 | continue; // postpone release one more frame to ensure noone use it periodically | |
1169 | } | |
1170 | ||
1171 | const TCollection_AsciiString& aKey = anIter.Key(); | |
1172 | if (!mySharedResources->IsBound (aKey)) | |
1173 | { | |
1174 | // mixed unshared strategy delayed/undelayed was used! | |
1175 | aDeadList.Append (aKey); | |
1176 | continue; | |
1177 | } | |
1178 | ||
1179 | Handle(OpenGl_Resource)& aRes = mySharedResources->ChangeFind (aKey); | |
1180 | if (aRes->GetRefCount() > 1) | |
1181 | { | |
1182 | // should be only 1 instance in mySharedResources | |
1183 | // if not - resource was reused again | |
1184 | aDeadList.Append (aKey); | |
1185 | continue; | |
1186 | } | |
1187 | ||
1188 | // release resource if no one requiested it more than 2 redraw calls | |
1189 | aRes->Release (this); | |
1190 | mySharedResources->UnBind (aKey); | |
1191 | aDeadList.Append (aKey); | |
1192 | } | |
1193 | ||
1194 | for (Standard_Integer anIter = 0; anIter < aDeadList.Length(); ++anIter) | |
1195 | { | |
1196 | myDelayed->UnBind (aDeadList.Value (anIter)); | |
1197 | } | |
5e27df78 | 1198 | } |