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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), | |
b859a34d | 91 | extPDS(Standard_False), |
f0430952 | 92 | atiMem (Standard_False), |
93 | nvxMem (Standard_False), | |
5e27df78 | 94 | mySharedResources (new OpenGl_ResourcesMap()), |
a174a3c5 | 95 | myDelayed (new OpenGl_DelayReleaseMap()), |
96 | myReleaseQueue (new OpenGl_ResourcesQueue()), | |
4269bd1b | 97 | myClippingState (), |
5f8b738e | 98 | myGlLibHandle (NULL), |
99 | myGlCore20 (NULL), | |
2f6cb3ac | 100 | myAnisoMax (1), |
eafb234b | 101 | myMaxTexDim (1024), |
4269bd1b | 102 | myMaxClipPlanes (6), |
5f8b738e | 103 | myGlVerMajor (0), |
104 | myGlVerMinor (0), | |
664cae74 | 105 | myIsFeedback (Standard_False), |
5f8b738e | 106 | myIsInitialized (Standard_False) |
2166f0fa | 107 | { |
5f8b738e | 108 | #if defined(MAC_OS_X_VERSION_10_3) && !defined(MACOSX_USE_GLX) |
109 | // Vendors can not extend functionality on this system | |
110 | // and developers are limited to OpenGL support provided by Mac OS X SDK. | |
111 | // We retrieve function pointers from system library | |
112 | // to generalize extensions support on all platforms. | |
113 | // In this way we also reach binary compatibility benefit between OS releases | |
114 | // if some newest functionality is optionally used. | |
115 | // Notice that GL version / extension availability checks are required | |
116 | // because function pointers may be available but not functionality itself | |
117 | // (depends on renderer). | |
118 | myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY); | |
119 | #endif | |
2166f0fa SK |
120 | } |
121 | ||
122 | // ======================================================================= | |
123 | // function : ~OpenGl_Context | |
124 | // purpose : | |
125 | // ======================================================================= | |
126 | OpenGl_Context::~OpenGl_Context() | |
127 | { | |
5e27df78 | 128 | // release clean up queue |
129 | ReleaseDelayed(); | |
130 | ||
131 | // release shared resources if any | |
132 | if (((const Handle(Standard_Transient)& )mySharedResources)->GetRefCount() <= 1) | |
133 | { | |
134 | for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources); | |
135 | anIter.More(); anIter.Next()) | |
136 | { | |
137 | anIter.Value()->Release (this); | |
138 | } | |
139 | } | |
140 | mySharedResources.Nullify(); | |
a174a3c5 | 141 | myDelayed.Nullify(); |
5e27df78 | 142 | |
cbf18624 | 143 | if (arbDbg != NULL |
144 | && caps->contextDebug) | |
145 | { | |
146 | // reset callback | |
147 | void* aPtr = NULL; | |
148 | glGetPointerv (GL_DEBUG_CALLBACK_USER_PARAM_ARB, &aPtr); | |
149 | if (aPtr == this) | |
150 | { | |
151 | arbDbg->glDebugMessageCallbackARB (NULL, NULL); | |
152 | } | |
153 | } | |
154 | ||
5f8b738e | 155 | delete myGlCore20; |
156 | delete arbVBO; | |
58655684 | 157 | delete arbTBO; |
158 | delete arbIns; | |
159 | delete arbDbg; | |
5f8b738e | 160 | delete extFBO; |
37eb4787 | 161 | delete extGS; |
5f8b738e | 162 | } |
163 | ||
bf75be98 | 164 | // ======================================================================= |
165 | // function : MaxDegreeOfAnisotropy | |
166 | // purpose : | |
167 | // ======================================================================= | |
168 | Standard_Integer OpenGl_Context::MaxDegreeOfAnisotropy() const | |
169 | { | |
170 | return myAnisoMax; | |
171 | } | |
172 | ||
173 | // ======================================================================= | |
174 | // function : MaxTextureSize | |
175 | // purpose : | |
176 | // ======================================================================= | |
177 | Standard_Integer OpenGl_Context::MaxTextureSize() const | |
178 | { | |
179 | return myMaxTexDim; | |
180 | } | |
181 | ||
4269bd1b | 182 | // ======================================================================= |
183 | // function : MaxClipPlanes | |
184 | // purpose : | |
185 | // ======================================================================= | |
186 | Standard_Integer OpenGl_Context::MaxClipPlanes() const | |
187 | { | |
188 | return myMaxClipPlanes; | |
189 | } | |
190 | ||
5e27df78 | 191 | // ======================================================================= |
192 | // function : Share | |
193 | // purpose : | |
194 | // ======================================================================= | |
195 | void OpenGl_Context::Share (const Handle(OpenGl_Context)& theShareCtx) | |
196 | { | |
197 | if (!theShareCtx.IsNull()) | |
198 | { | |
199 | mySharedResources = theShareCtx->mySharedResources; | |
a174a3c5 | 200 | myDelayed = theShareCtx->myDelayed; |
5e27df78 | 201 | myReleaseQueue = theShareCtx->myReleaseQueue; |
202 | } | |
203 | } | |
204 | ||
4fe56619 | 205 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
206 | ||
86fa64d9 | 207 | // ======================================================================= |
208 | // function : IsCurrent | |
209 | // purpose : | |
210 | // ======================================================================= | |
211 | Standard_Boolean OpenGl_Context::IsCurrent() const | |
212 | { | |
58655684 | 213 | #if defined(_WIN32) |
86fa64d9 | 214 | if (myWindowDC == NULL || myGContext == NULL) |
215 | { | |
216 | return Standard_False; | |
217 | } | |
218 | return (( (HDC )myWindowDC == wglGetCurrentDC()) | |
219 | && ((HGLRC )myGContext == wglGetCurrentContext())); | |
220 | #else | |
221 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) | |
222 | { | |
223 | return Standard_False; | |
224 | } | |
225 | ||
226 | return ( ((Display* )myDisplay == glXGetCurrentDisplay()) | |
227 | && ((GLXContext )myGContext == glXGetCurrentContext()) | |
228 | && ((GLXDrawable )myWindow == glXGetCurrentDrawable())); | |
229 | #endif | |
230 | } | |
231 | ||
2bd4c032 | 232 | // ======================================================================= |
233 | // function : MakeCurrent | |
234 | // purpose : | |
235 | // ======================================================================= | |
236 | Standard_Boolean OpenGl_Context::MakeCurrent() | |
237 | { | |
58655684 | 238 | #if defined(_WIN32) |
86fa64d9 | 239 | if (myWindowDC == NULL || myGContext == NULL) |
2bd4c032 | 240 | { |
86fa64d9 | 241 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); |
242 | return Standard_False; | |
243 | } | |
244 | ||
245 | // technically it should be safe to activate already bound GL context | |
246 | // however some drivers (Intel etc.) may FAIL doing this for unknown reason | |
247 | if (IsCurrent()) | |
248 | { | |
249 | return Standard_True; | |
250 | } | |
251 | else if (wglMakeCurrent ((HDC )myWindowDC, (HGLRC )myGContext) != TRUE) | |
252 | { | |
253 | // notice that glGetError() couldn't be used here! | |
254 | wchar_t* aMsgBuff = NULL; | |
255 | DWORD anErrorCode = GetLastError(); | |
256 | FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, | |
257 | NULL, anErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (wchar_t* )&aMsgBuff, 0, NULL); | |
cbf18624 | 258 | TCollection_ExtendedString aMsg ("wglMakeCurrent() has failed. "); |
86fa64d9 | 259 | if (aMsgBuff != NULL) |
260 | { | |
cbf18624 | 261 | aMsg += (Standard_ExtString )aMsgBuff; |
86fa64d9 | 262 | LocalFree (aMsgBuff); |
263 | } | |
cbf18624 | 264 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, (unsigned int )anErrorCode, GL_DEBUG_SEVERITY_HIGH_ARB, aMsg); |
2bd4c032 | 265 | return Standard_False; |
266 | } | |
267 | #else | |
86fa64d9 | 268 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) |
269 | { | |
270 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
271 | return Standard_False; | |
272 | } | |
273 | ||
274 | if (!glXMakeCurrent ((Display* )myDisplay, (GLXDrawable )myWindow, (GLXContext )myGContext)) | |
2bd4c032 | 275 | { |
276 | // if there is no current context it might be impossible to use glGetError() correctly | |
cbf18624 | 277 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
278 | "glXMakeCurrent() has failed!"); | |
2bd4c032 | 279 | return Standard_False; |
280 | } | |
281 | #endif | |
282 | return Standard_True; | |
283 | } | |
284 | ||
5e27df78 | 285 | // ======================================================================= |
286 | // function : SwapBuffers | |
287 | // purpose : | |
288 | // ======================================================================= | |
289 | void OpenGl_Context::SwapBuffers() | |
290 | { | |
58655684 | 291 | #if defined(_WIN32) |
5e27df78 | 292 | if ((HDC )myWindowDC != NULL) |
293 | { | |
294 | ::SwapBuffers ((HDC )myWindowDC); | |
295 | glFlush(); | |
296 | } | |
297 | #else | |
298 | if ((Display* )myDisplay != NULL) | |
299 | { | |
300 | glXSwapBuffers ((Display* )myDisplay, (GLXDrawable )myWindow); | |
301 | } | |
302 | #endif | |
303 | } | |
304 | ||
4fe56619 | 305 | #endif // __APPLE__ |
306 | ||
5f8b738e | 307 | // ======================================================================= |
308 | // function : findProc | |
309 | // purpose : | |
310 | // ======================================================================= | |
311 | void* OpenGl_Context::findProc (const char* theFuncName) | |
312 | { | |
58655684 | 313 | #if defined(_WIN32) |
5f8b738e | 314 | return wglGetProcAddress (theFuncName); |
315 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
316 | return (myGlLibHandle != NULL) ? dlsym (myGlLibHandle, theFuncName) : NULL; | |
317 | #else | |
318 | return (void* )glXGetProcAddress ((const GLubyte* )theFuncName); | |
319 | #endif | |
2166f0fa SK |
320 | } |
321 | ||
322 | // ======================================================================= | |
323 | // function : CheckExtension | |
324 | // purpose : | |
325 | // ======================================================================= | |
2bd4c032 | 326 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtName) const |
2166f0fa | 327 | { |
5f8b738e | 328 | if (theExtName == NULL) |
329 | { | |
330 | std::cerr << "CheckExtension called with NULL string!\n"; | |
331 | return Standard_False; | |
332 | } | |
5f8b738e | 333 | |
334 | // available since OpenGL 3.0 | |
335 | // and the ONLY way to check extensions with OpenGL 3.1+ core profile | |
2bd4c032 | 336 | /**if (IsGlGreaterEqual (3, 0)) |
5f8b738e | 337 | { |
338 | GLint anExtNb = 0; | |
339 | glGetIntegerv (GL_NUM_EXTENSIONS, &anExtNb); | |
340 | for (GLint anIter = 0; anIter < anExtNb; ++anIter) | |
341 | { | |
342 | const char* anExtension = (const char* )core30->glGetStringi (GL_EXTENSIONS, (GLuint )anIter); | |
343 | if (anExtension[anExtNameLen] == '\0' && | |
344 | strncmp (anExtension, theExtName, anExtNameLen) == 0) | |
345 | { | |
346 | return Standard_True; | |
347 | } | |
348 | } | |
349 | return Standard_False; | |
350 | }*/ | |
351 | ||
352 | // use old way with huge string for all extensions | |
353 | const char* anExtString = (const char* )glGetString (GL_EXTENSIONS); | |
354 | if (anExtString == NULL) | |
355 | { | |
cbf18624 | 356 | Messanger()->Send ("TKOpenGL: glGetString (GL_EXTENSIONS) has returned NULL! No GL context?", Message_Warning); |
2166f0fa SK |
357 | return Standard_False; |
358 | } | |
58655684 | 359 | return CheckExtension (anExtString, theExtName); |
360 | } | |
361 | ||
362 | // ======================================================================= | |
363 | // function : CheckExtension | |
364 | // purpose : | |
365 | // ======================================================================= | |
366 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtString, | |
367 | const char* theExtName) | |
368 | { | |
369 | if (theExtString == NULL) | |
370 | { | |
371 | return Standard_False; | |
372 | } | |
2166f0fa SK |
373 | |
374 | // Search for theExtName in the extensions string. | |
375 | // Use of strstr() is not sufficient because extension names can be prefixes of other extension names. | |
58655684 | 376 | char* aPtrIter = (char* )theExtString; |
377 | const char* aPtrEnd = aPtrIter + strlen (theExtString); | |
378 | const size_t anExtNameLen = strlen (theExtName); | |
2166f0fa SK |
379 | while (aPtrIter < aPtrEnd) |
380 | { | |
6a7d83c4 | 381 | const size_t n = strcspn (aPtrIter, " "); |
5f8b738e | 382 | if ((n == anExtNameLen) && (strncmp (aPtrIter, theExtName, anExtNameLen) == 0)) |
383 | { | |
2166f0fa | 384 | return Standard_True; |
5f8b738e | 385 | } |
2166f0fa SK |
386 | aPtrIter += (n + 1); |
387 | } | |
388 | return Standard_False; | |
389 | } | |
390 | ||
4fe56619 | 391 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
392 | ||
2166f0fa SK |
393 | // ======================================================================= |
394 | // function : Init | |
395 | // purpose : | |
396 | // ======================================================================= | |
f0430952 | 397 | Standard_Boolean OpenGl_Context::Init() |
2166f0fa | 398 | { |
2bd4c032 | 399 | if (myIsInitialized) |
5f8b738e | 400 | { |
f0430952 | 401 | return Standard_True; |
5f8b738e | 402 | } |
2bd4c032 | 403 | |
58655684 | 404 | #if defined(_WIN32) |
2bd4c032 | 405 | myWindowDC = (Aspect_Handle )wglGetCurrentDC(); |
406 | myGContext = (Aspect_RenderingContext )wglGetCurrentContext(); | |
407 | #else | |
408 | myDisplay = (Aspect_Display )glXGetCurrentDisplay(); | |
409 | myGContext = (Aspect_RenderingContext )glXGetCurrentContext(); | |
410 | myWindow = (Aspect_Drawable )glXGetCurrentDrawable(); | |
411 | #endif | |
f0430952 | 412 | if (myGContext == NULL) |
413 | { | |
414 | return Standard_False; | |
415 | } | |
2bd4c032 | 416 | |
417 | init(); | |
418 | myIsInitialized = Standard_True; | |
f0430952 | 419 | return Standard_True; |
2bd4c032 | 420 | } |
421 | ||
4fe56619 | 422 | #endif // __APPLE__ |
423 | ||
2bd4c032 | 424 | // ======================================================================= |
425 | // function : Init | |
426 | // purpose : | |
427 | // ======================================================================= | |
58655684 | 428 | #if defined(_WIN32) |
f0430952 | 429 | Standard_Boolean OpenGl_Context::Init (const Aspect_Handle theWindow, |
430 | const Aspect_Handle theWindowDC, | |
431 | const Aspect_RenderingContext theGContext) | |
4fe56619 | 432 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
433 | Standard_Boolean OpenGl_Context::Init (const void* theGContext) | |
2bd4c032 | 434 | #else |
f0430952 | 435 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theWindow, |
436 | const Aspect_Display theDisplay, | |
437 | const Aspect_RenderingContext theGContext) | |
2bd4c032 | 438 | #endif |
439 | { | |
440 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called only once!"); | |
58655684 | 441 | #if defined(_WIN32) |
2bd4c032 | 442 | myWindow = theWindow; |
443 | myGContext = theGContext; | |
2bd4c032 | 444 | myWindowDC = theWindowDC; |
4fe56619 | 445 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
446 | myGContext = (void* )theGContext; | |
2bd4c032 | 447 | #else |
4fe56619 | 448 | myWindow = theWindow; |
449 | myGContext = theGContext; | |
2bd4c032 | 450 | myDisplay = theDisplay; |
451 | #endif | |
86fa64d9 | 452 | if (myGContext == NULL || !MakeCurrent()) |
f0430952 | 453 | { |
454 | return Standard_False; | |
455 | } | |
2bd4c032 | 456 | |
457 | init(); | |
458 | myIsInitialized = Standard_True; | |
f0430952 | 459 | return Standard_True; |
5f8b738e | 460 | } |
461 | ||
462 | // ======================================================================= | |
463 | // function : ResetErrors | |
464 | // purpose : | |
465 | // ======================================================================= | |
466 | void OpenGl_Context::ResetErrors() | |
467 | { | |
468 | while (glGetError() != GL_NO_ERROR) | |
469 | { | |
470 | // | |
471 | } | |
472 | } | |
473 | ||
474 | // ======================================================================= | |
475 | // function : readGlVersion | |
476 | // purpose : | |
477 | // ======================================================================= | |
478 | void OpenGl_Context::readGlVersion() | |
479 | { | |
480 | // reset values | |
481 | myGlVerMajor = 0; | |
482 | myGlVerMinor = 0; | |
483 | ||
484 | // available since OpenGL 3.0 | |
86325709 | 485 | GLint aMajor = 0, aMinor = 0; |
5f8b738e | 486 | glGetIntegerv (GL_MAJOR_VERSION, &aMajor); |
487 | glGetIntegerv (GL_MINOR_VERSION, &aMinor); | |
86325709 | 488 | // glGetError() sometimes does not report an error here even if |
489 | // GL does not know GL_MAJOR_VERSION and GL_MINOR_VERSION constants. | |
490 | // This happens on some rendereres like e.g. Cygwin MESA. | |
491 | // Thus checking additionally if GL has put anything to | |
492 | // the output variables. | |
493 | if (glGetError() == GL_NO_ERROR && aMajor != 0 && aMinor != 0) | |
5f8b738e | 494 | { |
495 | myGlVerMajor = aMajor; | |
496 | myGlVerMinor = aMinor; | |
497 | return; | |
498 | } | |
499 | ResetErrors(); | |
500 | ||
501 | // Read version string. | |
502 | // Notice that only first two numbers splitted by point '2.1 XXXXX' are significant. | |
503 | // Following trash (after space) is vendor-specific. | |
504 | // New drivers also returns micro version of GL like '3.3.0' which has no meaning | |
505 | // and should be considered as vendor-specific too. | |
506 | const char* aVerStr = (const char* )glGetString (GL_VERSION); | |
507 | if (aVerStr == NULL || *aVerStr == '\0') | |
508 | { | |
509 | // invalid GL context | |
510 | return; | |
511 | } | |
512 | ||
513 | // parse string for major number | |
514 | char aMajorStr[32]; | |
515 | char aMinorStr[32]; | |
516 | size_t aMajIter = 0; | |
517 | while (aVerStr[aMajIter] >= '0' && aVerStr[aMajIter] <= '9') | |
518 | { | |
519 | ++aMajIter; | |
520 | } | |
521 | if (aMajIter == 0 || aMajIter >= sizeof(aMajorStr)) | |
522 | { | |
523 | return; | |
524 | } | |
525 | memcpy (aMajorStr, aVerStr, aMajIter); | |
526 | aMajorStr[aMajIter] = '\0'; | |
527 | ||
528 | // parse string for minor number | |
86325709 | 529 | aVerStr += aMajIter + 1; |
530 | size_t aMinIter = 0; | |
5f8b738e | 531 | while (aVerStr[aMinIter] >= '0' && aVerStr[aMinIter] <= '9') |
532 | { | |
533 | ++aMinIter; | |
534 | } | |
86325709 | 535 | if (aMinIter == 0 || aMinIter >= sizeof(aMinorStr)) |
5f8b738e | 536 | { |
537 | return; | |
538 | } | |
86325709 | 539 | memcpy (aMinorStr, aVerStr, aMinIter); |
540 | aMinorStr[aMinIter] = '\0'; | |
5f8b738e | 541 | |
542 | // read numbers | |
543 | myGlVerMajor = atoi (aMajorStr); | |
544 | myGlVerMinor = atoi (aMinorStr); | |
545 | ||
546 | if (myGlVerMajor <= 0) | |
547 | { | |
548 | myGlVerMajor = 0; | |
549 | myGlVerMinor = 0; | |
550 | } | |
551 | } | |
552 | ||
58655684 | 553 | static Standard_CString THE_DBGMSG_UNKNOWN = "UNKNOWN"; |
554 | static Standard_CString THE_DBGMSG_SOURCES[] = | |
555 | { | |
cbf18624 | 556 | ".OpenGL", // GL_DEBUG_SOURCE_API_ARB |
557 | ".WinSystem", // GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB | |
558 | ".GLSL", // GL_DEBUG_SOURCE_SHADER_COMPILER_ARB | |
559 | ".3rdParty", // GL_DEBUG_SOURCE_THIRD_PARTY_ARB | |
560 | "", // GL_DEBUG_SOURCE_APPLICATION_ARB | |
561 | ".Other" // GL_DEBUG_SOURCE_OTHER_ARB | |
58655684 | 562 | }; |
563 | ||
564 | static Standard_CString THE_DBGMSG_TYPES[] = | |
565 | { | |
cbf18624 | 566 | "Error", // GL_DEBUG_TYPE_ERROR_ARB |
567 | "Deprecated", // GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB | |
568 | "Undef. behavior", // GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB | |
569 | "Portability", // GL_DEBUG_TYPE_PORTABILITY_ARB | |
570 | "Performance", // GL_DEBUG_TYPE_PERFORMANCE_ARB | |
571 | "Other" // GL_DEBUG_TYPE_OTHER_ARB | |
58655684 | 572 | }; |
573 | ||
574 | static Standard_CString THE_DBGMSG_SEV_HIGH = "High"; // GL_DEBUG_SEVERITY_HIGH_ARB | |
575 | static Standard_CString THE_DBGMSG_SEV_MEDIUM = "Medium"; // GL_DEBUG_SEVERITY_MEDIUM_ARB | |
576 | static Standard_CString THE_DBGMSG_SEV_LOW = "Low"; // GL_DEBUG_SEVERITY_LOW_ARB | |
577 | ||
cbf18624 | 578 | //! Callback for GL_ARB_debug_output extension |
58655684 | 579 | static void APIENTRY debugCallbackWrap(unsigned int theSource, |
580 | unsigned int theType, | |
581 | unsigned int theId, | |
582 | unsigned int theSeverity, | |
583 | int /*theLength*/, | |
584 | const char* theMessage, | |
cbf18624 | 585 | void* theUserParam) |
586 | { | |
587 | OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
588 | aCtx->PushMessage (theSource, theType, theId, theSeverity, theMessage); | |
589 | } | |
590 | ||
591 | // ======================================================================= | |
592 | // function : PushMessage | |
593 | // purpose : | |
594 | // ======================================================================= | |
595 | void OpenGl_Context::PushMessage (const unsigned int theSource, | |
596 | const unsigned int theType, | |
597 | const unsigned int theId, | |
598 | const unsigned int theSeverity, | |
599 | const TCollection_ExtendedString& theMessage) | |
58655684 | 600 | { |
601 | //OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
602 | Standard_CString& aSrc = (theSource >= GL_DEBUG_SOURCE_API_ARB | |
603 | && theSource <= GL_DEBUG_SOURCE_OTHER_ARB) | |
604 | ? THE_DBGMSG_SOURCES[theSource - GL_DEBUG_SOURCE_API_ARB] | |
605 | : THE_DBGMSG_UNKNOWN; | |
606 | Standard_CString& aType = (theType >= GL_DEBUG_TYPE_ERROR_ARB | |
607 | && theType <= GL_DEBUG_TYPE_OTHER_ARB) | |
608 | ? THE_DBGMSG_TYPES[theType - GL_DEBUG_TYPE_ERROR_ARB] | |
609 | : THE_DBGMSG_UNKNOWN; | |
610 | Standard_CString& aSev = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB | |
611 | ? THE_DBGMSG_SEV_HIGH | |
612 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
613 | ? THE_DBGMSG_SEV_MEDIUM | |
614 | : THE_DBGMSG_SEV_LOW); | |
cbf18624 | 615 | Message_Gravity aGrav = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB |
616 | ? Message_Alarm | |
617 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
618 | ? Message_Warning | |
619 | : Message_Info); | |
620 | ||
621 | TCollection_ExtendedString aMsg; | |
622 | aMsg += "TKOpenGl"; aMsg += aSrc; | |
623 | aMsg += " | Type: "; aMsg += aType; | |
624 | aMsg += " | ID: "; aMsg += (Standard_Integer )theId; | |
625 | aMsg += " | Severity: "; aMsg += aSev; | |
626 | aMsg += " | Message:\n "; | |
627 | aMsg += theMessage; | |
628 | ||
629 | Messanger()->Send (aMsg, aGrav); | |
58655684 | 630 | } |
631 | ||
5f8b738e | 632 | // ======================================================================= |
633 | // function : init | |
634 | // purpose : | |
635 | // ======================================================================= | |
636 | void OpenGl_Context::init() | |
637 | { | |
638 | // read version | |
639 | readGlVersion(); | |
640 | ||
bf75be98 | 641 | arbNPTW = CheckExtension ("GL_ARB_texture_non_power_of_two"); |
642 | extBgra = CheckExtension ("GL_EXT_bgra"); | |
643 | extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic"); | |
b859a34d | 644 | extPDS = CheckExtension ("GL_EXT_packed_depth_stencil"); |
bf75be98 | 645 | atiMem = CheckExtension ("GL_ATI_meminfo"); |
646 | nvxMem = CheckExtension ("GL_NVX_gpu_memory_info"); | |
647 | ||
4269bd1b | 648 | // get number of maximum clipping planes |
649 | glGetIntegerv (GL_MAX_CLIP_PLANES, &myMaxClipPlanes); | |
bf75be98 | 650 | glGetIntegerv (GL_MAX_TEXTURE_SIZE, &myMaxTexDim); |
651 | if (extAnis) | |
652 | { | |
653 | glGetIntegerv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &myAnisoMax); | |
654 | } | |
f0430952 | 655 | |
4269bd1b | 656 | myClippingState.Init (myMaxClipPlanes); |
657 | ||
58655684 | 658 | // initialize debug context extension |
659 | if (CheckExtension ("GL_ARB_debug_output")) | |
660 | { | |
661 | arbDbg = new OpenGl_ArbDbg(); | |
662 | memset (arbDbg, 0, sizeof(OpenGl_ArbDbg)); // nullify whole structure | |
663 | if (!FindProcShort (arbDbg, glDebugMessageControlARB) | |
664 | || !FindProcShort (arbDbg, glDebugMessageInsertARB) | |
665 | || !FindProcShort (arbDbg, glDebugMessageCallbackARB) | |
666 | || !FindProcShort (arbDbg, glGetDebugMessageLogARB)) | |
667 | { | |
668 | delete arbDbg; | |
669 | arbDbg = NULL; | |
670 | } | |
671 | if (arbDbg != NULL | |
672 | && caps->contextDebug) | |
673 | { | |
674 | // setup default callback | |
675 | arbDbg->glDebugMessageCallbackARB (debugCallbackWrap, this); | |
fcdbe201 | 676 | #ifdef DEB |
58655684 | 677 | glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB); |
fcdbe201 | 678 | #endif |
58655684 | 679 | } |
680 | } | |
681 | ||
5f8b738e | 682 | // initialize VBO extension (ARB) |
683 | if (CheckExtension ("GL_ARB_vertex_buffer_object")) | |
2166f0fa SK |
684 | { |
685 | arbVBO = new OpenGl_ArbVBO(); | |
5f8b738e | 686 | memset (arbVBO, 0, sizeof(OpenGl_ArbVBO)); // nullify whole structure |
687 | if (!FindProcShort (arbVBO, glGenBuffersARB) | |
688 | || !FindProcShort (arbVBO, glBindBufferARB) | |
689 | || !FindProcShort (arbVBO, glBufferDataARB) | |
690 | || !FindProcShort (arbVBO, glDeleteBuffersARB)) | |
2166f0fa SK |
691 | { |
692 | delete arbVBO; | |
693 | arbVBO = NULL; | |
694 | } | |
695 | } | |
696 | ||
5e27df78 | 697 | // initialize TBO extension (ARB) |
698 | if (CheckExtension ("GL_ARB_texture_buffer_object")) | |
699 | { | |
700 | arbTBO = new OpenGl_ArbTBO(); | |
701 | memset (arbTBO, 0, sizeof(OpenGl_ArbTBO)); // nullify whole structure | |
702 | if (!FindProcShort (arbTBO, glTexBufferARB)) | |
703 | { | |
704 | delete arbTBO; | |
705 | arbTBO = NULL; | |
706 | } | |
707 | } | |
708 | ||
709 | // initialize hardware instancing extension (ARB) | |
710 | if (CheckExtension ("GL_ARB_draw_instanced")) | |
711 | { | |
712 | arbIns = new OpenGl_ArbIns(); | |
713 | memset (arbIns, 0, sizeof(OpenGl_ArbIns)); // nullify whole structure | |
714 | if (!FindProcShort (arbIns, glDrawArraysInstancedARB) | |
715 | || !FindProcShort (arbIns, glDrawElementsInstancedARB)) | |
716 | { | |
717 | delete arbIns; | |
718 | arbIns = NULL; | |
719 | } | |
720 | } | |
721 | ||
5f8b738e | 722 | // initialize FBO extension (EXT) |
723 | if (CheckExtension ("GL_EXT_framebuffer_object")) | |
2166f0fa SK |
724 | { |
725 | extFBO = new OpenGl_ExtFBO(); | |
5f8b738e | 726 | memset (extFBO, 0, sizeof(OpenGl_ExtFBO)); // nullify whole structure |
727 | if (!FindProcShort (extFBO, glGenFramebuffersEXT) | |
728 | || !FindProcShort (extFBO, glDeleteFramebuffersEXT) | |
729 | || !FindProcShort (extFBO, glBindFramebufferEXT) | |
730 | || !FindProcShort (extFBO, glFramebufferTexture2DEXT) | |
731 | || !FindProcShort (extFBO, glCheckFramebufferStatusEXT) | |
732 | || !FindProcShort (extFBO, glGenRenderbuffersEXT) | |
733 | || !FindProcShort (extFBO, glDeleteRenderbuffersEXT) | |
734 | || !FindProcShort (extFBO, glBindRenderbufferEXT) | |
735 | || !FindProcShort (extFBO, glRenderbufferStorageEXT) | |
1a7dfdb7 | 736 | || !FindProcShort (extFBO, glFramebufferRenderbufferEXT) |
737 | || !FindProcShort (extFBO, glGenerateMipmapEXT)) | |
2166f0fa SK |
738 | { |
739 | delete extFBO; | |
740 | extFBO = NULL; | |
741 | } | |
742 | } | |
5f8b738e | 743 | |
37eb4787 | 744 | // initialize GS extension (EXT) |
745 | if (CheckExtension ("GL_EXT_geometry_shader4")) | |
746 | { | |
747 | extGS = new OpenGl_ExtGS(); | |
748 | memset (extGS, 0, sizeof(OpenGl_ExtGS)); // nullify whole structure | |
749 | if (!FindProcShort (extGS, glProgramParameteriEXT)) | |
750 | { | |
751 | delete extGS; | |
752 | extGS = NULL; | |
753 | } | |
754 | } | |
755 | ||
5f8b738e | 756 | myGlCore20 = new OpenGl_GlCore20(); |
757 | memset (myGlCore20, 0, sizeof(OpenGl_GlCore20)); // nullify whole structure | |
758 | ||
86325709 | 759 | // Check if OpenGL 1.2 core functionality is actually present |
760 | Standard_Boolean hasGlCore12 = IsGlGreaterEqual (1, 2) | |
761 | && FindProcShort (myGlCore20, glBlendColor) | |
762 | && FindProcShort (myGlCore20, glBlendEquation) | |
763 | && FindProcShort (myGlCore20, glDrawRangeElements) | |
764 | && FindProcShort (myGlCore20, glTexImage3D) | |
765 | && FindProcShort (myGlCore20, glTexSubImage3D) | |
766 | && FindProcShort (myGlCore20, glCopyTexSubImage3D); | |
767 | ||
768 | // Check if OpenGL 1.3 core functionality is actually present | |
769 | Standard_Boolean hasGlCore13 = IsGlGreaterEqual (1, 3) | |
770 | && FindProcShort (myGlCore20, glActiveTexture) | |
771 | && FindProcShort (myGlCore20, glSampleCoverage) | |
772 | && FindProcShort (myGlCore20, glCompressedTexImage3D) | |
773 | && FindProcShort (myGlCore20, glCompressedTexImage2D) | |
774 | && FindProcShort (myGlCore20, glCompressedTexImage1D) | |
775 | && FindProcShort (myGlCore20, glCompressedTexSubImage3D) | |
776 | && FindProcShort (myGlCore20, glCompressedTexSubImage2D) | |
777 | && FindProcShort (myGlCore20, glCompressedTexSubImage1D) | |
778 | && FindProcShort (myGlCore20, glGetCompressedTexImage) | |
779 | // deprecated | |
780 | && FindProcShort (myGlCore20, glClientActiveTexture) | |
781 | && FindProcShort (myGlCore20, glMultiTexCoord1d) | |
782 | && FindProcShort (myGlCore20, glMultiTexCoord1dv) | |
783 | && FindProcShort (myGlCore20, glMultiTexCoord1f) | |
784 | && FindProcShort (myGlCore20, glMultiTexCoord1fv) | |
785 | && FindProcShort (myGlCore20, glMultiTexCoord1i) | |
786 | && FindProcShort (myGlCore20, glMultiTexCoord1iv) | |
787 | && FindProcShort (myGlCore20, glMultiTexCoord1s) | |
788 | && FindProcShort (myGlCore20, glMultiTexCoord1sv) | |
789 | && FindProcShort (myGlCore20, glMultiTexCoord2d) | |
790 | && FindProcShort (myGlCore20, glMultiTexCoord2dv) | |
791 | && FindProcShort (myGlCore20, glMultiTexCoord2f) | |
792 | && FindProcShort (myGlCore20, glMultiTexCoord2fv) | |
793 | && FindProcShort (myGlCore20, glMultiTexCoord2i) | |
794 | && FindProcShort (myGlCore20, glMultiTexCoord2iv) | |
795 | && FindProcShort (myGlCore20, glMultiTexCoord2s) | |
796 | && FindProcShort (myGlCore20, glMultiTexCoord2sv) | |
797 | && FindProcShort (myGlCore20, glMultiTexCoord3d) | |
798 | && FindProcShort (myGlCore20, glMultiTexCoord3dv) | |
799 | && FindProcShort (myGlCore20, glMultiTexCoord3f) | |
800 | && FindProcShort (myGlCore20, glMultiTexCoord3fv) | |
801 | && FindProcShort (myGlCore20, glMultiTexCoord3i) | |
802 | && FindProcShort (myGlCore20, glMultiTexCoord3iv) | |
803 | && FindProcShort (myGlCore20, glMultiTexCoord3s) | |
804 | && FindProcShort (myGlCore20, glMultiTexCoord3sv) | |
805 | && FindProcShort (myGlCore20, glMultiTexCoord4d) | |
806 | && FindProcShort (myGlCore20, glMultiTexCoord4dv) | |
807 | && FindProcShort (myGlCore20, glMultiTexCoord4f) | |
808 | && FindProcShort (myGlCore20, glMultiTexCoord4fv) | |
809 | && FindProcShort (myGlCore20, glMultiTexCoord4i) | |
810 | && FindProcShort (myGlCore20, glMultiTexCoord4iv) | |
811 | && FindProcShort (myGlCore20, glMultiTexCoord4s) | |
812 | && FindProcShort (myGlCore20, glMultiTexCoord4sv) | |
813 | && FindProcShort (myGlCore20, glLoadTransposeMatrixf) | |
814 | && FindProcShort (myGlCore20, glLoadTransposeMatrixd) | |
815 | && FindProcShort (myGlCore20, glMultTransposeMatrixf) | |
816 | && FindProcShort (myGlCore20, glMultTransposeMatrixd); | |
817 | ||
818 | // Check if OpenGL 1.4 core functionality is actually present | |
819 | Standard_Boolean hasGlCore14 = IsGlGreaterEqual (1, 4) | |
820 | && FindProcShort (myGlCore20, glBlendFuncSeparate) | |
821 | && FindProcShort (myGlCore20, glMultiDrawArrays) | |
822 | && FindProcShort (myGlCore20, glMultiDrawElements) | |
823 | && FindProcShort (myGlCore20, glPointParameterf) | |
824 | && FindProcShort (myGlCore20, glPointParameterfv) | |
825 | && FindProcShort (myGlCore20, glPointParameteri) | |
826 | && FindProcShort (myGlCore20, glPointParameteriv); | |
827 | ||
828 | // Check if OpenGL 1.5 core functionality is actually present | |
829 | Standard_Boolean hasGlCore15 = IsGlGreaterEqual (1, 5) | |
830 | && FindProcShort (myGlCore20, glGenQueries) | |
831 | && FindProcShort (myGlCore20, glDeleteQueries) | |
832 | && FindProcShort (myGlCore20, glIsQuery) | |
833 | && FindProcShort (myGlCore20, glBeginQuery) | |
834 | && FindProcShort (myGlCore20, glEndQuery) | |
835 | && FindProcShort (myGlCore20, glGetQueryiv) | |
836 | && FindProcShort (myGlCore20, glGetQueryObjectiv) | |
837 | && FindProcShort (myGlCore20, glGetQueryObjectuiv) | |
838 | && FindProcShort (myGlCore20, glBindBuffer) | |
839 | && FindProcShort (myGlCore20, glDeleteBuffers) | |
840 | && FindProcShort (myGlCore20, glGenBuffers) | |
841 | && FindProcShort (myGlCore20, glIsBuffer) | |
842 | && FindProcShort (myGlCore20, glBufferData) | |
843 | && FindProcShort (myGlCore20, glBufferSubData) | |
844 | && FindProcShort (myGlCore20, glGetBufferSubData) | |
845 | && FindProcShort (myGlCore20, glMapBuffer) | |
846 | && FindProcShort (myGlCore20, glUnmapBuffer) | |
847 | && FindProcShort (myGlCore20, glGetBufferParameteriv) | |
848 | && FindProcShort (myGlCore20, glGetBufferPointerv); | |
849 | ||
850 | // Check if OpenGL 2.0 core functionality is actually present | |
851 | Standard_Boolean hasGlCore20 = IsGlGreaterEqual (2, 0) | |
852 | && FindProcShort (myGlCore20, glBlendEquationSeparate) | |
853 | && FindProcShort (myGlCore20, glDrawBuffers) | |
854 | && FindProcShort (myGlCore20, glStencilOpSeparate) | |
855 | && FindProcShort (myGlCore20, glStencilFuncSeparate) | |
856 | && FindProcShort (myGlCore20, glStencilMaskSeparate) | |
857 | && FindProcShort (myGlCore20, glAttachShader) | |
858 | && FindProcShort (myGlCore20, glBindAttribLocation) | |
859 | && FindProcShort (myGlCore20, glCompileShader) | |
860 | && FindProcShort (myGlCore20, glCreateProgram) | |
861 | && FindProcShort (myGlCore20, glCreateShader) | |
862 | && FindProcShort (myGlCore20, glDeleteProgram) | |
863 | && FindProcShort (myGlCore20, glDeleteShader) | |
864 | && FindProcShort (myGlCore20, glDetachShader) | |
865 | && FindProcShort (myGlCore20, glDisableVertexAttribArray) | |
866 | && FindProcShort (myGlCore20, glEnableVertexAttribArray) | |
867 | && FindProcShort (myGlCore20, glGetActiveAttrib) | |
868 | && FindProcShort (myGlCore20, glGetActiveUniform) | |
869 | && FindProcShort (myGlCore20, glGetAttachedShaders) | |
870 | && FindProcShort (myGlCore20, glGetAttribLocation) | |
871 | && FindProcShort (myGlCore20, glGetProgramiv) | |
872 | && FindProcShort (myGlCore20, glGetProgramInfoLog) | |
873 | && FindProcShort (myGlCore20, glGetShaderiv) | |
874 | && FindProcShort (myGlCore20, glGetShaderInfoLog) | |
875 | && FindProcShort (myGlCore20, glGetShaderSource) | |
876 | && FindProcShort (myGlCore20, glGetUniformLocation) | |
877 | && FindProcShort (myGlCore20, glGetUniformfv) | |
878 | && FindProcShort (myGlCore20, glGetUniformiv) | |
879 | && FindProcShort (myGlCore20, glGetVertexAttribdv) | |
880 | && FindProcShort (myGlCore20, glGetVertexAttribfv) | |
881 | && FindProcShort (myGlCore20, glGetVertexAttribiv) | |
882 | && FindProcShort (myGlCore20, glGetVertexAttribPointerv) | |
883 | && FindProcShort (myGlCore20, glIsProgram) | |
884 | && FindProcShort (myGlCore20, glIsShader) | |
885 | && FindProcShort (myGlCore20, glLinkProgram) | |
886 | && FindProcShort (myGlCore20, glShaderSource) | |
887 | && FindProcShort (myGlCore20, glUseProgram) | |
888 | && FindProcShort (myGlCore20, glUniform1f) | |
889 | && FindProcShort (myGlCore20, glUniform2f) | |
890 | && FindProcShort (myGlCore20, glUniform3f) | |
891 | && FindProcShort (myGlCore20, glUniform4f) | |
892 | && FindProcShort (myGlCore20, glUniform1i) | |
893 | && FindProcShort (myGlCore20, glUniform2i) | |
894 | && FindProcShort (myGlCore20, glUniform3i) | |
895 | && FindProcShort (myGlCore20, glUniform4i) | |
896 | && FindProcShort (myGlCore20, glUniform1fv) | |
897 | && FindProcShort (myGlCore20, glUniform2fv) | |
898 | && FindProcShort (myGlCore20, glUniform3fv) | |
899 | && FindProcShort (myGlCore20, glUniform4fv) | |
900 | && FindProcShort (myGlCore20, glUniform1iv) | |
901 | && FindProcShort (myGlCore20, glUniform2iv) | |
902 | && FindProcShort (myGlCore20, glUniform3iv) | |
903 | && FindProcShort (myGlCore20, glUniform4iv) | |
904 | && FindProcShort (myGlCore20, glUniformMatrix2fv) | |
905 | && FindProcShort (myGlCore20, glUniformMatrix3fv) | |
906 | && FindProcShort (myGlCore20, glUniformMatrix4fv) | |
907 | && FindProcShort (myGlCore20, glValidateProgram) | |
908 | && FindProcShort (myGlCore20, glVertexAttrib1d) | |
909 | && FindProcShort (myGlCore20, glVertexAttrib1dv) | |
910 | && FindProcShort (myGlCore20, glVertexAttrib1f) | |
911 | && FindProcShort (myGlCore20, glVertexAttrib1fv) | |
912 | && FindProcShort (myGlCore20, glVertexAttrib1s) | |
913 | && FindProcShort (myGlCore20, glVertexAttrib1sv) | |
914 | && FindProcShort (myGlCore20, glVertexAttrib2d) | |
915 | && FindProcShort (myGlCore20, glVertexAttrib2dv) | |
916 | && FindProcShort (myGlCore20, glVertexAttrib2f) | |
917 | && FindProcShort (myGlCore20, glVertexAttrib2fv) | |
918 | && FindProcShort (myGlCore20, glVertexAttrib2s) | |
919 | && FindProcShort (myGlCore20, glVertexAttrib2sv) | |
920 | && FindProcShort (myGlCore20, glVertexAttrib3d) | |
921 | && FindProcShort (myGlCore20, glVertexAttrib3dv) | |
922 | && FindProcShort (myGlCore20, glVertexAttrib3f) | |
923 | && FindProcShort (myGlCore20, glVertexAttrib3fv) | |
924 | && FindProcShort (myGlCore20, glVertexAttrib3s) | |
925 | && FindProcShort (myGlCore20, glVertexAttrib3sv) | |
926 | && FindProcShort (myGlCore20, glVertexAttrib4Nbv) | |
927 | && FindProcShort (myGlCore20, glVertexAttrib4Niv) | |
928 | && FindProcShort (myGlCore20, glVertexAttrib4Nsv) | |
929 | && FindProcShort (myGlCore20, glVertexAttrib4Nub) | |
930 | && FindProcShort (myGlCore20, glVertexAttrib4Nubv) | |
931 | && FindProcShort (myGlCore20, glVertexAttrib4Nuiv) | |
932 | && FindProcShort (myGlCore20, glVertexAttrib4Nusv) | |
933 | && FindProcShort (myGlCore20, glVertexAttrib4bv) | |
934 | && FindProcShort (myGlCore20, glVertexAttrib4d) | |
935 | && FindProcShort (myGlCore20, glVertexAttrib4dv) | |
936 | && FindProcShort (myGlCore20, glVertexAttrib4f) | |
937 | && FindProcShort (myGlCore20, glVertexAttrib4fv) | |
938 | && FindProcShort (myGlCore20, glVertexAttrib4iv) | |
939 | && FindProcShort (myGlCore20, glVertexAttrib4s) | |
940 | && FindProcShort (myGlCore20, glVertexAttrib4sv) | |
941 | && FindProcShort (myGlCore20, glVertexAttrib4ubv) | |
942 | && FindProcShort (myGlCore20, glVertexAttrib4uiv) | |
943 | && FindProcShort (myGlCore20, glVertexAttrib4usv) | |
944 | && FindProcShort (myGlCore20, glVertexAttribPointer); | |
945 | ||
946 | if (!hasGlCore12) | |
947 | { | |
948 | myGlVerMajor = 1; | |
949 | myGlVerMinor = 1; | |
950 | return; | |
5f8b738e | 951 | } |
86325709 | 952 | else |
5f8b738e | 953 | { |
86325709 | 954 | core12 = myGlCore20; |
5f8b738e | 955 | } |
86325709 | 956 | if (!hasGlCore13) |
5f8b738e | 957 | { |
86325709 | 958 | myGlVerMajor = 1; |
959 | myGlVerMinor = 2; | |
960 | return; | |
5f8b738e | 961 | } |
86325709 | 962 | else |
963 | { | |
964 | core13 = myGlCore20; | |
5f8b738e | 965 | } |
86325709 | 966 | if(!hasGlCore14) |
967 | { | |
968 | myGlVerMajor = 1; | |
969 | myGlVerMinor = 3; | |
970 | return; | |
5f8b738e | 971 | } |
86325709 | 972 | else |
5f8b738e | 973 | { |
5f8b738e | 974 | core14 = myGlCore20; |
86325709 | 975 | } |
976 | if(!hasGlCore15) | |
977 | { | |
978 | myGlVerMajor = 1; | |
979 | myGlVerMinor = 4; | |
980 | return; | |
981 | } | |
982 | else | |
983 | { | |
5f8b738e | 984 | core15 = myGlCore20; |
86325709 | 985 | } |
986 | if(!hasGlCore20) | |
987 | { | |
988 | myGlVerMajor = 1; | |
989 | myGlVerMinor = 5; | |
990 | } | |
991 | else | |
992 | { | |
5f8b738e | 993 | core20 = myGlCore20; |
994 | } | |
2166f0fa | 995 | } |
664cae74 | 996 | // ======================================================================= |
997 | // function : IsFeedback | |
998 | // purpose : | |
999 | // ======================================================================= | |
1000 | Standard_Boolean OpenGl_Context::IsFeedback() const | |
1001 | { | |
1002 | return myIsFeedback; | |
1003 | } | |
1004 | ||
1005 | // ======================================================================= | |
1006 | // function : SetFeedback | |
1007 | // purpose : | |
1008 | // ======================================================================= | |
1009 | void OpenGl_Context::SetFeedback (const Standard_Boolean theFeedbackOn) | |
1010 | { | |
1011 | myIsFeedback = theFeedbackOn; | |
1012 | } | |
f0430952 | 1013 | |
1014 | // ======================================================================= | |
1015 | // function : MemoryInfo | |
1016 | // purpose : | |
1017 | // ======================================================================= | |
1018 | Standard_Size OpenGl_Context::AvailableMemory() const | |
1019 | { | |
1020 | if (atiMem) | |
1021 | { | |
1022 | // this is actually information for VBO pool | |
1023 | // however because pools are mostly shared | |
1024 | // it can be used for total GPU memory estimations | |
1025 | GLint aMemInfo[4]; | |
1026 | aMemInfo[0] = 0; | |
1027 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aMemInfo); | |
1028 | // returned value is in KiB, however this maybe changed in future | |
1029 | return Standard_Size(aMemInfo[0]) * 1024; | |
1030 | } | |
1031 | else if (nvxMem) | |
1032 | { | |
1033 | // current available dedicated video memory (in KiB), currently unused GPU memory | |
1034 | GLint aMemInfo = 0; | |
1035 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aMemInfo); | |
1036 | return Standard_Size(aMemInfo) * 1024; | |
1037 | } | |
1038 | return 0; | |
1039 | } | |
1040 | ||
1041 | // ======================================================================= | |
1042 | // function : MemoryInfo | |
1043 | // purpose : | |
1044 | // ======================================================================= | |
1045 | TCollection_AsciiString OpenGl_Context::MemoryInfo() const | |
1046 | { | |
1047 | TCollection_AsciiString anInfo; | |
1048 | if (atiMem) | |
1049 | { | |
1050 | GLint aValues[4]; | |
1051 | memset (aValues, 0, sizeof(aValues)); | |
1052 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aValues); | |
1053 | ||
1054 | // total memory free in the pool | |
1055 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValues[0] / 1024) + " MiB\n"; | |
1056 | ||
1057 | // largest available free block in the pool | |
1058 | anInfo += TCollection_AsciiString (" Largest free block: ") + (aValues[1] / 1024) + " MiB\n"; | |
1059 | if (aValues[2] != aValues[0]) | |
1060 | { | |
1061 | // total auxiliary memory free | |
1062 | anInfo += TCollection_AsciiString (" Free memory: ") + (aValues[2] / 1024) + " MiB\n"; | |
1063 | } | |
1064 | } | |
1065 | else if (nvxMem) | |
1066 | { | |
1067 | //current available dedicated video memory (in KiB), currently unused GPU memory | |
1068 | GLint aValue = 0; | |
1069 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aValue); | |
1070 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValue / 1024) + " MiB\n"; | |
1071 | ||
1072 | // dedicated video memory, total size (in KiB) of the GPU memory | |
1073 | GLint aDedicated = 0; | |
1074 | glGetIntegerv (GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &aDedicated); | |
1075 | anInfo += TCollection_AsciiString (" GPU memory: ") + (aDedicated / 1024) + " MiB\n"; | |
1076 | ||
1077 | // total available memory, total size (in KiB) of the memory available for allocations | |
1078 | glGetIntegerv (GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &aValue); | |
1079 | if (aValue != aDedicated) | |
1080 | { | |
1081 | // different only for special configurations | |
1082 | anInfo += TCollection_AsciiString (" Total memory: ") + (aValue / 1024) + " MiB\n"; | |
1083 | } | |
1084 | } | |
1085 | return anInfo; | |
1086 | } | |
5e27df78 | 1087 | |
1088 | ||
1089 | // ======================================================================= | |
1090 | // function : GetResource | |
1091 | // purpose : | |
1092 | // ======================================================================= | |
1093 | const Handle(OpenGl_Resource)& OpenGl_Context::GetResource (const TCollection_AsciiString& theKey) const | |
1094 | { | |
1095 | return mySharedResources->IsBound (theKey) ? mySharedResources->Find (theKey) : NULL_GL_RESOURCE; | |
1096 | } | |
1097 | ||
1098 | // ======================================================================= | |
1099 | // function : ShareResource | |
1100 | // purpose : | |
1101 | // ======================================================================= | |
1102 | Standard_Boolean OpenGl_Context::ShareResource (const TCollection_AsciiString& theKey, | |
1103 | const Handle(OpenGl_Resource)& theResource) | |
1104 | { | |
1105 | if (theKey.IsEmpty() || theResource.IsNull()) | |
1106 | { | |
1107 | return Standard_False; | |
1108 | } | |
1109 | return mySharedResources->Bind (theKey, theResource); | |
1110 | } | |
1111 | ||
1112 | // ======================================================================= | |
1113 | // function : ReleaseResource | |
1114 | // purpose : | |
1115 | // ======================================================================= | |
a174a3c5 | 1116 | void OpenGl_Context::ReleaseResource (const TCollection_AsciiString& theKey, |
1117 | const Standard_Boolean theToDelay) | |
5e27df78 | 1118 | { |
1119 | if (!mySharedResources->IsBound (theKey)) | |
1120 | { | |
1121 | return; | |
1122 | } | |
1123 | const Handle(OpenGl_Resource)& aRes = mySharedResources->Find (theKey); | |
1124 | if (aRes->GetRefCount() > 1) | |
1125 | { | |
1126 | return; | |
1127 | } | |
1128 | ||
a174a3c5 | 1129 | if (theToDelay) |
1130 | { | |
1131 | myDelayed->Bind (theKey, 1); | |
1132 | } | |
1133 | else | |
1134 | { | |
1135 | aRes->Release (this); | |
1136 | mySharedResources->UnBind (theKey); | |
1137 | } | |
5e27df78 | 1138 | } |
1139 | ||
1140 | // ======================================================================= | |
1141 | // function : DelayedRelease | |
1142 | // purpose : | |
1143 | // ======================================================================= | |
1144 | void OpenGl_Context::DelayedRelease (Handle(OpenGl_Resource)& theResource) | |
1145 | { | |
1146 | myReleaseQueue->Push (theResource); | |
1147 | theResource.Nullify(); | |
1148 | } | |
1149 | ||
1150 | // ======================================================================= | |
1151 | // function : ReleaseDelayed | |
1152 | // purpose : | |
1153 | // ======================================================================= | |
1154 | void OpenGl_Context::ReleaseDelayed() | |
1155 | { | |
a174a3c5 | 1156 | // release queued elements |
5e27df78 | 1157 | while (!myReleaseQueue->IsEmpty()) |
1158 | { | |
1159 | myReleaseQueue->Front()->Release (this); | |
1160 | myReleaseQueue->Pop(); | |
1161 | } | |
a174a3c5 | 1162 | |
1163 | // release delayed shared resoruces | |
1164 | NCollection_Vector<TCollection_AsciiString> aDeadList; | |
1165 | for (NCollection_DataMap<TCollection_AsciiString, Standard_Integer>::Iterator anIter (*myDelayed); | |
1166 | anIter.More(); anIter.Next()) | |
1167 | { | |
1168 | if (++anIter.ChangeValue() <= 2) | |
1169 | { | |
1170 | continue; // postpone release one more frame to ensure noone use it periodically | |
1171 | } | |
1172 | ||
1173 | const TCollection_AsciiString& aKey = anIter.Key(); | |
1174 | if (!mySharedResources->IsBound (aKey)) | |
1175 | { | |
1176 | // mixed unshared strategy delayed/undelayed was used! | |
1177 | aDeadList.Append (aKey); | |
1178 | continue; | |
1179 | } | |
1180 | ||
1181 | Handle(OpenGl_Resource)& aRes = mySharedResources->ChangeFind (aKey); | |
1182 | if (aRes->GetRefCount() > 1) | |
1183 | { | |
1184 | // should be only 1 instance in mySharedResources | |
1185 | // if not - resource was reused again | |
1186 | aDeadList.Append (aKey); | |
1187 | continue; | |
1188 | } | |
1189 | ||
1190 | // release resource if no one requiested it more than 2 redraw calls | |
1191 | aRes->Release (this); | |
1192 | mySharedResources->UnBind (aKey); | |
1193 | aDeadList.Append (aKey); | |
1194 | } | |
1195 | ||
1196 | for (Standard_Integer anIter = 0; anIter < aDeadList.Length(); ++anIter) | |
1197 | { | |
1198 | myDelayed->UnBind (aDeadList.Value (anIter)); | |
1199 | } | |
5e27df78 | 1200 | } |