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6aca4d39 | 1 | // Created on: 2012-01-26 |
b311480e | 2 | // Created by: Kirill GAVRILOV |
6aca4d39 | 3 | // Copyright (c) 2012-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
973c2be1 | 7 | // This library is free software; you can redistribute it and / or modify it |
8 | // under the terms of the GNU Lesser General Public version 2.1 as published | |
9 | // by the Free Software Foundation, with special exception defined in the file | |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
11 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
b311480e | 15 | |
58655684 | 16 | #if defined(_WIN32) |
5f8b738e | 17 | #include <windows.h> |
18 | #endif | |
19 | ||
2166f0fa SK |
20 | #include <OpenGl_Context.hxx> |
21 | ||
5f8b738e | 22 | #include <OpenGl_ArbVBO.hxx> |
5e27df78 | 23 | #include <OpenGl_ArbTBO.hxx> |
24 | #include <OpenGl_ArbIns.hxx> | |
58655684 | 25 | #include <OpenGl_ArbDbg.hxx> |
5f8b738e | 26 | #include <OpenGl_ExtFBO.hxx> |
37eb4787 | 27 | #include <OpenGl_ExtGS.hxx> |
5f8b738e | 28 | #include <OpenGl_GlCore20.hxx> |
30f0ad28 | 29 | #include <OpenGl_ShaderManager.hxx> |
5f8b738e | 30 | |
cbf18624 | 31 | #include <Message_Messenger.hxx> |
30f0ad28 | 32 | |
a174a3c5 | 33 | #include <NCollection_Vector.hxx> |
34 | ||
2bd4c032 | 35 | #include <Standard_ProgramError.hxx> |
36 | ||
58655684 | 37 | #if defined(_WIN32) |
5f8b738e | 38 | // |
39 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
40 | #include <dlfcn.h> | |
41 | #else | |
42 | #include <GL/glx.h> // glXGetProcAddress() | |
43 | #endif | |
44 | ||
f0430952 | 45 | // GL_NVX_gpu_memory_info |
46 | #ifndef GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX | |
47 | enum | |
48 | { | |
49 | GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX = 0x9047, | |
50 | GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX = 0x9048, | |
51 | GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX = 0x9049, | |
52 | GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX = 0x904A, | |
53 | GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX = 0x904B | |
54 | }; | |
55 | #endif | |
56 | ||
2166f0fa SK |
57 | IMPLEMENT_STANDARD_HANDLE (OpenGl_Context, Standard_Transient) |
58 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Context, Standard_Transient) | |
59 | ||
5f8b738e | 60 | //! Make record shorter to retrieve function pointer using variable with same name |
61 | #define FindProcShort(theStruct, theFunc) FindProc(#theFunc, theStruct->theFunc) | |
2166f0fa | 62 | |
5e27df78 | 63 | namespace |
64 | { | |
65 | static const Handle(OpenGl_Resource) NULL_GL_RESOURCE; | |
4269bd1b | 66 | static const GLdouble OpenGl_DefaultPlaneEq[] = {0.0, 0.0, 0.0, 0.0}; |
5e27df78 | 67 | }; |
68 | ||
2166f0fa SK |
69 | // ======================================================================= |
70 | // function : OpenGl_Context | |
71 | // purpose : | |
72 | // ======================================================================= | |
58655684 | 73 | OpenGl_Context::OpenGl_Context (const Handle(OpenGl_Caps)& theCaps) |
5f8b738e | 74 | : core12 (NULL), |
75 | core13 (NULL), | |
76 | core14 (NULL), | |
77 | core15 (NULL), | |
78 | core20 (NULL), | |
58655684 | 79 | caps (!theCaps.IsNull() ? theCaps : new OpenGl_Caps()), |
bf75be98 | 80 | arbNPTW(Standard_False), |
5f8b738e | 81 | arbVBO (NULL), |
5e27df78 | 82 | arbTBO (NULL), |
83 | arbIns (NULL), | |
58655684 | 84 | arbDbg (NULL), |
5f8b738e | 85 | extFBO (NULL), |
37eb4787 | 86 | extGS (NULL), |
bf75be98 | 87 | extBgra(Standard_False), |
88 | extAnis(Standard_False), | |
30f0ad28 | 89 | extPDS (Standard_False), |
f0430952 | 90 | atiMem (Standard_False), |
91 | nvxMem (Standard_False), | |
5e27df78 | 92 | mySharedResources (new OpenGl_ResourcesMap()), |
a174a3c5 | 93 | myDelayed (new OpenGl_DelayReleaseMap()), |
94 | myReleaseQueue (new OpenGl_ResourcesQueue()), | |
4269bd1b | 95 | myClippingState (), |
5f8b738e | 96 | myGlLibHandle (NULL), |
97 | myGlCore20 (NULL), | |
2f6cb3ac | 98 | myAnisoMax (1), |
eafb234b | 99 | myMaxTexDim (1024), |
4269bd1b | 100 | myMaxClipPlanes (6), |
5f8b738e | 101 | myGlVerMajor (0), |
102 | myGlVerMinor (0), | |
664cae74 | 103 | myIsFeedback (Standard_False), |
5f8b738e | 104 | myIsInitialized (Standard_False) |
2166f0fa | 105 | { |
5f8b738e | 106 | #if defined(MAC_OS_X_VERSION_10_3) && !defined(MACOSX_USE_GLX) |
107 | // Vendors can not extend functionality on this system | |
108 | // and developers are limited to OpenGL support provided by Mac OS X SDK. | |
109 | // We retrieve function pointers from system library | |
110 | // to generalize extensions support on all platforms. | |
111 | // In this way we also reach binary compatibility benefit between OS releases | |
112 | // if some newest functionality is optionally used. | |
113 | // Notice that GL version / extension availability checks are required | |
114 | // because function pointers may be available but not functionality itself | |
115 | // (depends on renderer). | |
116 | myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY); | |
117 | #endif | |
30f0ad28 | 118 | |
119 | myShaderManager = new OpenGl_ShaderManager (this); | |
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 | { | |
392ac980 | 134 | myShaderManager.Nullify(); |
5e27df78 | 135 | for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources); |
136 | anIter.More(); anIter.Next()) | |
137 | { | |
138 | anIter.Value()->Release (this); | |
139 | } | |
140 | } | |
392ac980 | 141 | else |
142 | { | |
143 | myShaderManager->SetContext (NULL); | |
144 | } | |
5e27df78 | 145 | mySharedResources.Nullify(); |
a174a3c5 | 146 | myDelayed.Nullify(); |
5e27df78 | 147 | |
cbf18624 | 148 | if (arbDbg != NULL |
149 | && caps->contextDebug) | |
150 | { | |
151 | // reset callback | |
152 | void* aPtr = NULL; | |
153 | glGetPointerv (GL_DEBUG_CALLBACK_USER_PARAM_ARB, &aPtr); | |
154 | if (aPtr == this) | |
155 | { | |
156 | arbDbg->glDebugMessageCallbackARB (NULL, NULL); | |
157 | } | |
158 | } | |
159 | ||
5f8b738e | 160 | delete myGlCore20; |
161 | delete arbVBO; | |
58655684 | 162 | delete arbTBO; |
163 | delete arbIns; | |
164 | delete arbDbg; | |
5f8b738e | 165 | delete extFBO; |
37eb4787 | 166 | delete extGS; |
5f8b738e | 167 | } |
168 | ||
bf75be98 | 169 | // ======================================================================= |
170 | // function : MaxDegreeOfAnisotropy | |
171 | // purpose : | |
172 | // ======================================================================= | |
173 | Standard_Integer OpenGl_Context::MaxDegreeOfAnisotropy() const | |
174 | { | |
175 | return myAnisoMax; | |
176 | } | |
177 | ||
178 | // ======================================================================= | |
179 | // function : MaxTextureSize | |
180 | // purpose : | |
181 | // ======================================================================= | |
182 | Standard_Integer OpenGl_Context::MaxTextureSize() const | |
183 | { | |
184 | return myMaxTexDim; | |
185 | } | |
186 | ||
4269bd1b | 187 | // ======================================================================= |
188 | // function : MaxClipPlanes | |
189 | // purpose : | |
190 | // ======================================================================= | |
191 | Standard_Integer OpenGl_Context::MaxClipPlanes() const | |
192 | { | |
193 | return myMaxClipPlanes; | |
194 | } | |
195 | ||
5e27df78 | 196 | // ======================================================================= |
197 | // function : Share | |
198 | // purpose : | |
199 | // ======================================================================= | |
200 | void OpenGl_Context::Share (const Handle(OpenGl_Context)& theShareCtx) | |
201 | { | |
202 | if (!theShareCtx.IsNull()) | |
203 | { | |
204 | mySharedResources = theShareCtx->mySharedResources; | |
a174a3c5 | 205 | myDelayed = theShareCtx->myDelayed; |
5e27df78 | 206 | myReleaseQueue = theShareCtx->myReleaseQueue; |
392ac980 | 207 | myShaderManager = theShareCtx->myShaderManager; |
5e27df78 | 208 | } |
209 | } | |
210 | ||
4fe56619 | 211 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
212 | ||
86fa64d9 | 213 | // ======================================================================= |
214 | // function : IsCurrent | |
215 | // purpose : | |
216 | // ======================================================================= | |
217 | Standard_Boolean OpenGl_Context::IsCurrent() const | |
218 | { | |
58655684 | 219 | #if defined(_WIN32) |
86fa64d9 | 220 | if (myWindowDC == NULL || myGContext == NULL) |
221 | { | |
222 | return Standard_False; | |
223 | } | |
224 | return (( (HDC )myWindowDC == wglGetCurrentDC()) | |
225 | && ((HGLRC )myGContext == wglGetCurrentContext())); | |
226 | #else | |
227 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) | |
228 | { | |
229 | return Standard_False; | |
230 | } | |
231 | ||
232 | return ( ((Display* )myDisplay == glXGetCurrentDisplay()) | |
233 | && ((GLXContext )myGContext == glXGetCurrentContext()) | |
234 | && ((GLXDrawable )myWindow == glXGetCurrentDrawable())); | |
235 | #endif | |
236 | } | |
237 | ||
2bd4c032 | 238 | // ======================================================================= |
239 | // function : MakeCurrent | |
240 | // purpose : | |
241 | // ======================================================================= | |
242 | Standard_Boolean OpenGl_Context::MakeCurrent() | |
243 | { | |
58655684 | 244 | #if defined(_WIN32) |
86fa64d9 | 245 | if (myWindowDC == NULL || myGContext == NULL) |
2bd4c032 | 246 | { |
86fa64d9 | 247 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); |
248 | return Standard_False; | |
249 | } | |
250 | ||
251 | // technically it should be safe to activate already bound GL context | |
252 | // however some drivers (Intel etc.) may FAIL doing this for unknown reason | |
253 | if (IsCurrent()) | |
254 | { | |
392ac980 | 255 | myShaderManager->SetContext (this); |
86fa64d9 | 256 | return Standard_True; |
257 | } | |
258 | else if (wglMakeCurrent ((HDC )myWindowDC, (HGLRC )myGContext) != TRUE) | |
259 | { | |
260 | // notice that glGetError() couldn't be used here! | |
261 | wchar_t* aMsgBuff = NULL; | |
262 | DWORD anErrorCode = GetLastError(); | |
263 | FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, | |
264 | NULL, anErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (wchar_t* )&aMsgBuff, 0, NULL); | |
cbf18624 | 265 | TCollection_ExtendedString aMsg ("wglMakeCurrent() has failed. "); |
86fa64d9 | 266 | if (aMsgBuff != NULL) |
267 | { | |
cbf18624 | 268 | aMsg += (Standard_ExtString )aMsgBuff; |
86fa64d9 | 269 | LocalFree (aMsgBuff); |
270 | } | |
cbf18624 | 271 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, (unsigned int )anErrorCode, GL_DEBUG_SEVERITY_HIGH_ARB, aMsg); |
fd4a6963 | 272 | myIsInitialized = Standard_False; |
2bd4c032 | 273 | return Standard_False; |
274 | } | |
275 | #else | |
86fa64d9 | 276 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) |
277 | { | |
278 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
279 | return Standard_False; | |
280 | } | |
281 | ||
282 | if (!glXMakeCurrent ((Display* )myDisplay, (GLXDrawable )myWindow, (GLXContext )myGContext)) | |
2bd4c032 | 283 | { |
284 | // if there is no current context it might be impossible to use glGetError() correctly | |
cbf18624 | 285 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
286 | "glXMakeCurrent() has failed!"); | |
fd4a6963 | 287 | myIsInitialized = Standard_False; |
2bd4c032 | 288 | return Standard_False; |
289 | } | |
290 | #endif | |
392ac980 | 291 | myShaderManager->SetContext (this); |
2bd4c032 | 292 | return Standard_True; |
293 | } | |
294 | ||
5e27df78 | 295 | // ======================================================================= |
296 | // function : SwapBuffers | |
297 | // purpose : | |
298 | // ======================================================================= | |
299 | void OpenGl_Context::SwapBuffers() | |
300 | { | |
58655684 | 301 | #if defined(_WIN32) |
5e27df78 | 302 | if ((HDC )myWindowDC != NULL) |
303 | { | |
304 | ::SwapBuffers ((HDC )myWindowDC); | |
305 | glFlush(); | |
306 | } | |
307 | #else | |
308 | if ((Display* )myDisplay != NULL) | |
309 | { | |
310 | glXSwapBuffers ((Display* )myDisplay, (GLXDrawable )myWindow); | |
311 | } | |
312 | #endif | |
313 | } | |
314 | ||
4fe56619 | 315 | #endif // __APPLE__ |
316 | ||
5f8b738e | 317 | // ======================================================================= |
318 | // function : findProc | |
319 | // purpose : | |
320 | // ======================================================================= | |
321 | void* OpenGl_Context::findProc (const char* theFuncName) | |
322 | { | |
58655684 | 323 | #if defined(_WIN32) |
5f8b738e | 324 | return wglGetProcAddress (theFuncName); |
325 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
326 | return (myGlLibHandle != NULL) ? dlsym (myGlLibHandle, theFuncName) : NULL; | |
327 | #else | |
328 | return (void* )glXGetProcAddress ((const GLubyte* )theFuncName); | |
329 | #endif | |
2166f0fa SK |
330 | } |
331 | ||
332 | // ======================================================================= | |
333 | // function : CheckExtension | |
334 | // purpose : | |
335 | // ======================================================================= | |
2bd4c032 | 336 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtName) const |
2166f0fa | 337 | { |
5f8b738e | 338 | if (theExtName == NULL) |
339 | { | |
340 | std::cerr << "CheckExtension called with NULL string!\n"; | |
341 | return Standard_False; | |
342 | } | |
5f8b738e | 343 | |
344 | // available since OpenGL 3.0 | |
345 | // and the ONLY way to check extensions with OpenGL 3.1+ core profile | |
2bd4c032 | 346 | /**if (IsGlGreaterEqual (3, 0)) |
5f8b738e | 347 | { |
348 | GLint anExtNb = 0; | |
349 | glGetIntegerv (GL_NUM_EXTENSIONS, &anExtNb); | |
350 | for (GLint anIter = 0; anIter < anExtNb; ++anIter) | |
351 | { | |
352 | const char* anExtension = (const char* )core30->glGetStringi (GL_EXTENSIONS, (GLuint )anIter); | |
353 | if (anExtension[anExtNameLen] == '\0' && | |
354 | strncmp (anExtension, theExtName, anExtNameLen) == 0) | |
355 | { | |
356 | return Standard_True; | |
357 | } | |
358 | } | |
359 | return Standard_False; | |
360 | }*/ | |
361 | ||
362 | // use old way with huge string for all extensions | |
363 | const char* anExtString = (const char* )glGetString (GL_EXTENSIONS); | |
364 | if (anExtString == NULL) | |
365 | { | |
cbf18624 | 366 | Messanger()->Send ("TKOpenGL: glGetString (GL_EXTENSIONS) has returned NULL! No GL context?", Message_Warning); |
2166f0fa SK |
367 | return Standard_False; |
368 | } | |
58655684 | 369 | return CheckExtension (anExtString, theExtName); |
370 | } | |
371 | ||
372 | // ======================================================================= | |
373 | // function : CheckExtension | |
374 | // purpose : | |
375 | // ======================================================================= | |
376 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtString, | |
377 | const char* theExtName) | |
378 | { | |
379 | if (theExtString == NULL) | |
380 | { | |
381 | return Standard_False; | |
382 | } | |
2166f0fa SK |
383 | |
384 | // Search for theExtName in the extensions string. | |
385 | // Use of strstr() is not sufficient because extension names can be prefixes of other extension names. | |
58655684 | 386 | char* aPtrIter = (char* )theExtString; |
387 | const char* aPtrEnd = aPtrIter + strlen (theExtString); | |
388 | const size_t anExtNameLen = strlen (theExtName); | |
2166f0fa SK |
389 | while (aPtrIter < aPtrEnd) |
390 | { | |
6a7d83c4 | 391 | const size_t n = strcspn (aPtrIter, " "); |
5f8b738e | 392 | if ((n == anExtNameLen) && (strncmp (aPtrIter, theExtName, anExtNameLen) == 0)) |
393 | { | |
2166f0fa | 394 | return Standard_True; |
5f8b738e | 395 | } |
2166f0fa SK |
396 | aPtrIter += (n + 1); |
397 | } | |
398 | return Standard_False; | |
399 | } | |
400 | ||
4fe56619 | 401 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
402 | ||
2166f0fa SK |
403 | // ======================================================================= |
404 | // function : Init | |
405 | // purpose : | |
406 | // ======================================================================= | |
f0430952 | 407 | Standard_Boolean OpenGl_Context::Init() |
2166f0fa | 408 | { |
2bd4c032 | 409 | if (myIsInitialized) |
5f8b738e | 410 | { |
f0430952 | 411 | return Standard_True; |
5f8b738e | 412 | } |
2bd4c032 | 413 | |
58655684 | 414 | #if defined(_WIN32) |
2bd4c032 | 415 | myWindowDC = (Aspect_Handle )wglGetCurrentDC(); |
416 | myGContext = (Aspect_RenderingContext )wglGetCurrentContext(); | |
417 | #else | |
418 | myDisplay = (Aspect_Display )glXGetCurrentDisplay(); | |
419 | myGContext = (Aspect_RenderingContext )glXGetCurrentContext(); | |
420 | myWindow = (Aspect_Drawable )glXGetCurrentDrawable(); | |
421 | #endif | |
f0430952 | 422 | if (myGContext == NULL) |
423 | { | |
424 | return Standard_False; | |
425 | } | |
2bd4c032 | 426 | |
427 | init(); | |
428 | myIsInitialized = Standard_True; | |
f0430952 | 429 | return Standard_True; |
2bd4c032 | 430 | } |
431 | ||
4fe56619 | 432 | #endif // __APPLE__ |
433 | ||
2bd4c032 | 434 | // ======================================================================= |
435 | // function : Init | |
436 | // purpose : | |
437 | // ======================================================================= | |
58655684 | 438 | #if defined(_WIN32) |
f0430952 | 439 | Standard_Boolean OpenGl_Context::Init (const Aspect_Handle theWindow, |
440 | const Aspect_Handle theWindowDC, | |
441 | const Aspect_RenderingContext theGContext) | |
4fe56619 | 442 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
443 | Standard_Boolean OpenGl_Context::Init (const void* theGContext) | |
2bd4c032 | 444 | #else |
f0430952 | 445 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theWindow, |
446 | const Aspect_Display theDisplay, | |
447 | const Aspect_RenderingContext theGContext) | |
2bd4c032 | 448 | #endif |
449 | { | |
450 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called only once!"); | |
58655684 | 451 | #if defined(_WIN32) |
2bd4c032 | 452 | myWindow = theWindow; |
453 | myGContext = theGContext; | |
2bd4c032 | 454 | myWindowDC = theWindowDC; |
4fe56619 | 455 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
456 | myGContext = (void* )theGContext; | |
2bd4c032 | 457 | #else |
4fe56619 | 458 | myWindow = theWindow; |
459 | myGContext = theGContext; | |
2bd4c032 | 460 | myDisplay = theDisplay; |
461 | #endif | |
86fa64d9 | 462 | if (myGContext == NULL || !MakeCurrent()) |
f0430952 | 463 | { |
464 | return Standard_False; | |
465 | } | |
2bd4c032 | 466 | |
467 | init(); | |
468 | myIsInitialized = Standard_True; | |
f0430952 | 469 | return Standard_True; |
5f8b738e | 470 | } |
471 | ||
472 | // ======================================================================= | |
473 | // function : ResetErrors | |
474 | // purpose : | |
475 | // ======================================================================= | |
476 | void OpenGl_Context::ResetErrors() | |
477 | { | |
478 | while (glGetError() != GL_NO_ERROR) | |
479 | { | |
480 | // | |
481 | } | |
482 | } | |
483 | ||
484 | // ======================================================================= | |
485 | // function : readGlVersion | |
486 | // purpose : | |
487 | // ======================================================================= | |
488 | void OpenGl_Context::readGlVersion() | |
489 | { | |
490 | // reset values | |
491 | myGlVerMajor = 0; | |
492 | myGlVerMinor = 0; | |
493 | ||
494 | // available since OpenGL 3.0 | |
86325709 | 495 | GLint aMajor = 0, aMinor = 0; |
5f8b738e | 496 | glGetIntegerv (GL_MAJOR_VERSION, &aMajor); |
497 | glGetIntegerv (GL_MINOR_VERSION, &aMinor); | |
30f0ad28 | 498 | // glGetError() sometimes does not report an error here even if |
86325709 | 499 | // GL does not know GL_MAJOR_VERSION and GL_MINOR_VERSION constants. |
500 | // This happens on some rendereres like e.g. Cygwin MESA. | |
501 | // Thus checking additionally if GL has put anything to | |
502 | // the output variables. | |
503 | if (glGetError() == GL_NO_ERROR && aMajor != 0 && aMinor != 0) | |
5f8b738e | 504 | { |
505 | myGlVerMajor = aMajor; | |
506 | myGlVerMinor = aMinor; | |
507 | return; | |
508 | } | |
509 | ResetErrors(); | |
510 | ||
511 | // Read version string. | |
512 | // Notice that only first two numbers splitted by point '2.1 XXXXX' are significant. | |
513 | // Following trash (after space) is vendor-specific. | |
514 | // New drivers also returns micro version of GL like '3.3.0' which has no meaning | |
515 | // and should be considered as vendor-specific too. | |
516 | const char* aVerStr = (const char* )glGetString (GL_VERSION); | |
517 | if (aVerStr == NULL || *aVerStr == '\0') | |
518 | { | |
519 | // invalid GL context | |
520 | return; | |
521 | } | |
522 | ||
523 | // parse string for major number | |
524 | char aMajorStr[32]; | |
525 | char aMinorStr[32]; | |
526 | size_t aMajIter = 0; | |
527 | while (aVerStr[aMajIter] >= '0' && aVerStr[aMajIter] <= '9') | |
528 | { | |
529 | ++aMajIter; | |
530 | } | |
531 | if (aMajIter == 0 || aMajIter >= sizeof(aMajorStr)) | |
532 | { | |
533 | return; | |
534 | } | |
535 | memcpy (aMajorStr, aVerStr, aMajIter); | |
536 | aMajorStr[aMajIter] = '\0'; | |
537 | ||
538 | // parse string for minor number | |
86325709 | 539 | aVerStr += aMajIter + 1; |
540 | size_t aMinIter = 0; | |
5f8b738e | 541 | while (aVerStr[aMinIter] >= '0' && aVerStr[aMinIter] <= '9') |
542 | { | |
543 | ++aMinIter; | |
544 | } | |
86325709 | 545 | if (aMinIter == 0 || aMinIter >= sizeof(aMinorStr)) |
5f8b738e | 546 | { |
547 | return; | |
548 | } | |
86325709 | 549 | memcpy (aMinorStr, aVerStr, aMinIter); |
550 | aMinorStr[aMinIter] = '\0'; | |
5f8b738e | 551 | |
552 | // read numbers | |
553 | myGlVerMajor = atoi (aMajorStr); | |
554 | myGlVerMinor = atoi (aMinorStr); | |
555 | ||
556 | if (myGlVerMajor <= 0) | |
557 | { | |
558 | myGlVerMajor = 0; | |
559 | myGlVerMinor = 0; | |
560 | } | |
561 | } | |
562 | ||
58655684 | 563 | static Standard_CString THE_DBGMSG_UNKNOWN = "UNKNOWN"; |
564 | static Standard_CString THE_DBGMSG_SOURCES[] = | |
565 | { | |
cbf18624 | 566 | ".OpenGL", // GL_DEBUG_SOURCE_API_ARB |
567 | ".WinSystem", // GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB | |
568 | ".GLSL", // GL_DEBUG_SOURCE_SHADER_COMPILER_ARB | |
569 | ".3rdParty", // GL_DEBUG_SOURCE_THIRD_PARTY_ARB | |
570 | "", // GL_DEBUG_SOURCE_APPLICATION_ARB | |
571 | ".Other" // GL_DEBUG_SOURCE_OTHER_ARB | |
58655684 | 572 | }; |
573 | ||
574 | static Standard_CString THE_DBGMSG_TYPES[] = | |
575 | { | |
cbf18624 | 576 | "Error", // GL_DEBUG_TYPE_ERROR_ARB |
577 | "Deprecated", // GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB | |
578 | "Undef. behavior", // GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB | |
579 | "Portability", // GL_DEBUG_TYPE_PORTABILITY_ARB | |
580 | "Performance", // GL_DEBUG_TYPE_PERFORMANCE_ARB | |
581 | "Other" // GL_DEBUG_TYPE_OTHER_ARB | |
58655684 | 582 | }; |
583 | ||
584 | static Standard_CString THE_DBGMSG_SEV_HIGH = "High"; // GL_DEBUG_SEVERITY_HIGH_ARB | |
585 | static Standard_CString THE_DBGMSG_SEV_MEDIUM = "Medium"; // GL_DEBUG_SEVERITY_MEDIUM_ARB | |
586 | static Standard_CString THE_DBGMSG_SEV_LOW = "Low"; // GL_DEBUG_SEVERITY_LOW_ARB | |
587 | ||
cbf18624 | 588 | //! Callback for GL_ARB_debug_output extension |
58655684 | 589 | static void APIENTRY debugCallbackWrap(unsigned int theSource, |
590 | unsigned int theType, | |
591 | unsigned int theId, | |
592 | unsigned int theSeverity, | |
593 | int /*theLength*/, | |
594 | const char* theMessage, | |
9293178b | 595 | const void* theUserParam) |
cbf18624 | 596 | { |
597 | OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
598 | aCtx->PushMessage (theSource, theType, theId, theSeverity, theMessage); | |
599 | } | |
600 | ||
601 | // ======================================================================= | |
602 | // function : PushMessage | |
603 | // purpose : | |
604 | // ======================================================================= | |
605 | void OpenGl_Context::PushMessage (const unsigned int theSource, | |
606 | const unsigned int theType, | |
607 | const unsigned int theId, | |
608 | const unsigned int theSeverity, | |
609 | const TCollection_ExtendedString& theMessage) | |
58655684 | 610 | { |
611 | //OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
612 | Standard_CString& aSrc = (theSource >= GL_DEBUG_SOURCE_API_ARB | |
613 | && theSource <= GL_DEBUG_SOURCE_OTHER_ARB) | |
614 | ? THE_DBGMSG_SOURCES[theSource - GL_DEBUG_SOURCE_API_ARB] | |
615 | : THE_DBGMSG_UNKNOWN; | |
616 | Standard_CString& aType = (theType >= GL_DEBUG_TYPE_ERROR_ARB | |
617 | && theType <= GL_DEBUG_TYPE_OTHER_ARB) | |
618 | ? THE_DBGMSG_TYPES[theType - GL_DEBUG_TYPE_ERROR_ARB] | |
619 | : THE_DBGMSG_UNKNOWN; | |
620 | Standard_CString& aSev = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB | |
621 | ? THE_DBGMSG_SEV_HIGH | |
622 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
623 | ? THE_DBGMSG_SEV_MEDIUM | |
624 | : THE_DBGMSG_SEV_LOW); | |
cbf18624 | 625 | Message_Gravity aGrav = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB |
626 | ? Message_Alarm | |
627 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
628 | ? Message_Warning | |
629 | : Message_Info); | |
630 | ||
631 | TCollection_ExtendedString aMsg; | |
632 | aMsg += "TKOpenGl"; aMsg += aSrc; | |
633 | aMsg += " | Type: "; aMsg += aType; | |
634 | aMsg += " | ID: "; aMsg += (Standard_Integer )theId; | |
635 | aMsg += " | Severity: "; aMsg += aSev; | |
636 | aMsg += " | Message:\n "; | |
637 | aMsg += theMessage; | |
638 | ||
639 | Messanger()->Send (aMsg, aGrav); | |
58655684 | 640 | } |
641 | ||
5f8b738e | 642 | // ======================================================================= |
643 | // function : init | |
644 | // purpose : | |
645 | // ======================================================================= | |
646 | void OpenGl_Context::init() | |
647 | { | |
648 | // read version | |
649 | readGlVersion(); | |
650 | ||
bf75be98 | 651 | arbNPTW = CheckExtension ("GL_ARB_texture_non_power_of_two"); |
652 | extBgra = CheckExtension ("GL_EXT_bgra"); | |
653 | extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic"); | |
b859a34d | 654 | extPDS = CheckExtension ("GL_EXT_packed_depth_stencil"); |
bf75be98 | 655 | atiMem = CheckExtension ("GL_ATI_meminfo"); |
656 | nvxMem = CheckExtension ("GL_NVX_gpu_memory_info"); | |
657 | ||
4269bd1b | 658 | // get number of maximum clipping planes |
659 | glGetIntegerv (GL_MAX_CLIP_PLANES, &myMaxClipPlanes); | |
bf75be98 | 660 | glGetIntegerv (GL_MAX_TEXTURE_SIZE, &myMaxTexDim); |
661 | if (extAnis) | |
662 | { | |
663 | glGetIntegerv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &myAnisoMax); | |
664 | } | |
f0430952 | 665 | |
4269bd1b | 666 | myClippingState.Init (myMaxClipPlanes); |
667 | ||
58655684 | 668 | // initialize debug context extension |
669 | if (CheckExtension ("GL_ARB_debug_output")) | |
670 | { | |
671 | arbDbg = new OpenGl_ArbDbg(); | |
672 | memset (arbDbg, 0, sizeof(OpenGl_ArbDbg)); // nullify whole structure | |
673 | if (!FindProcShort (arbDbg, glDebugMessageControlARB) | |
674 | || !FindProcShort (arbDbg, glDebugMessageInsertARB) | |
675 | || !FindProcShort (arbDbg, glDebugMessageCallbackARB) | |
676 | || !FindProcShort (arbDbg, glGetDebugMessageLogARB)) | |
677 | { | |
678 | delete arbDbg; | |
679 | arbDbg = NULL; | |
680 | } | |
681 | if (arbDbg != NULL | |
682 | && caps->contextDebug) | |
683 | { | |
684 | // setup default callback | |
685 | arbDbg->glDebugMessageCallbackARB (debugCallbackWrap, this); | |
fcdbe201 | 686 | #ifdef DEB |
58655684 | 687 | glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB); |
fcdbe201 | 688 | #endif |
58655684 | 689 | } |
690 | } | |
691 | ||
5f8b738e | 692 | // initialize VBO extension (ARB) |
693 | if (CheckExtension ("GL_ARB_vertex_buffer_object")) | |
2166f0fa SK |
694 | { |
695 | arbVBO = new OpenGl_ArbVBO(); | |
5f8b738e | 696 | memset (arbVBO, 0, sizeof(OpenGl_ArbVBO)); // nullify whole structure |
697 | if (!FindProcShort (arbVBO, glGenBuffersARB) | |
698 | || !FindProcShort (arbVBO, glBindBufferARB) | |
699 | || !FindProcShort (arbVBO, glBufferDataARB) | |
700 | || !FindProcShort (arbVBO, glDeleteBuffersARB)) | |
2166f0fa SK |
701 | { |
702 | delete arbVBO; | |
703 | arbVBO = NULL; | |
704 | } | |
705 | } | |
706 | ||
5e27df78 | 707 | // initialize TBO extension (ARB) |
708 | if (CheckExtension ("GL_ARB_texture_buffer_object")) | |
709 | { | |
710 | arbTBO = new OpenGl_ArbTBO(); | |
711 | memset (arbTBO, 0, sizeof(OpenGl_ArbTBO)); // nullify whole structure | |
712 | if (!FindProcShort (arbTBO, glTexBufferARB)) | |
713 | { | |
714 | delete arbTBO; | |
715 | arbTBO = NULL; | |
716 | } | |
717 | } | |
718 | ||
719 | // initialize hardware instancing extension (ARB) | |
720 | if (CheckExtension ("GL_ARB_draw_instanced")) | |
721 | { | |
722 | arbIns = new OpenGl_ArbIns(); | |
723 | memset (arbIns, 0, sizeof(OpenGl_ArbIns)); // nullify whole structure | |
724 | if (!FindProcShort (arbIns, glDrawArraysInstancedARB) | |
725 | || !FindProcShort (arbIns, glDrawElementsInstancedARB)) | |
726 | { | |
727 | delete arbIns; | |
728 | arbIns = NULL; | |
729 | } | |
730 | } | |
731 | ||
5f8b738e | 732 | // initialize FBO extension (EXT) |
733 | if (CheckExtension ("GL_EXT_framebuffer_object")) | |
2166f0fa SK |
734 | { |
735 | extFBO = new OpenGl_ExtFBO(); | |
5f8b738e | 736 | memset (extFBO, 0, sizeof(OpenGl_ExtFBO)); // nullify whole structure |
737 | if (!FindProcShort (extFBO, glGenFramebuffersEXT) | |
738 | || !FindProcShort (extFBO, glDeleteFramebuffersEXT) | |
739 | || !FindProcShort (extFBO, glBindFramebufferEXT) | |
740 | || !FindProcShort (extFBO, glFramebufferTexture2DEXT) | |
741 | || !FindProcShort (extFBO, glCheckFramebufferStatusEXT) | |
742 | || !FindProcShort (extFBO, glGenRenderbuffersEXT) | |
743 | || !FindProcShort (extFBO, glDeleteRenderbuffersEXT) | |
744 | || !FindProcShort (extFBO, glBindRenderbufferEXT) | |
745 | || !FindProcShort (extFBO, glRenderbufferStorageEXT) | |
1a7dfdb7 | 746 | || !FindProcShort (extFBO, glFramebufferRenderbufferEXT) |
747 | || !FindProcShort (extFBO, glGenerateMipmapEXT)) | |
2166f0fa SK |
748 | { |
749 | delete extFBO; | |
750 | extFBO = NULL; | |
751 | } | |
752 | } | |
5f8b738e | 753 | |
37eb4787 | 754 | // initialize GS extension (EXT) |
755 | if (CheckExtension ("GL_EXT_geometry_shader4")) | |
756 | { | |
757 | extGS = new OpenGl_ExtGS(); | |
758 | memset (extGS, 0, sizeof(OpenGl_ExtGS)); // nullify whole structure | |
759 | if (!FindProcShort (extGS, glProgramParameteriEXT)) | |
760 | { | |
761 | delete extGS; | |
762 | extGS = NULL; | |
763 | } | |
764 | } | |
765 | ||
5f8b738e | 766 | myGlCore20 = new OpenGl_GlCore20(); |
767 | memset (myGlCore20, 0, sizeof(OpenGl_GlCore20)); // nullify whole structure | |
768 | ||
86325709 | 769 | // Check if OpenGL 1.2 core functionality is actually present |
770 | Standard_Boolean hasGlCore12 = IsGlGreaterEqual (1, 2) | |
771 | && FindProcShort (myGlCore20, glBlendColor) | |
772 | && FindProcShort (myGlCore20, glBlendEquation) | |
773 | && FindProcShort (myGlCore20, glDrawRangeElements) | |
774 | && FindProcShort (myGlCore20, glTexImage3D) | |
775 | && FindProcShort (myGlCore20, glTexSubImage3D) | |
776 | && FindProcShort (myGlCore20, glCopyTexSubImage3D); | |
777 | ||
778 | // Check if OpenGL 1.3 core functionality is actually present | |
779 | Standard_Boolean hasGlCore13 = IsGlGreaterEqual (1, 3) | |
780 | && FindProcShort (myGlCore20, glActiveTexture) | |
781 | && FindProcShort (myGlCore20, glSampleCoverage) | |
782 | && FindProcShort (myGlCore20, glCompressedTexImage3D) | |
783 | && FindProcShort (myGlCore20, glCompressedTexImage2D) | |
784 | && FindProcShort (myGlCore20, glCompressedTexImage1D) | |
785 | && FindProcShort (myGlCore20, glCompressedTexSubImage3D) | |
786 | && FindProcShort (myGlCore20, glCompressedTexSubImage2D) | |
787 | && FindProcShort (myGlCore20, glCompressedTexSubImage1D) | |
788 | && FindProcShort (myGlCore20, glGetCompressedTexImage) | |
789 | // deprecated | |
790 | && FindProcShort (myGlCore20, glClientActiveTexture) | |
791 | && FindProcShort (myGlCore20, glMultiTexCoord1d) | |
792 | && FindProcShort (myGlCore20, glMultiTexCoord1dv) | |
793 | && FindProcShort (myGlCore20, glMultiTexCoord1f) | |
794 | && FindProcShort (myGlCore20, glMultiTexCoord1fv) | |
795 | && FindProcShort (myGlCore20, glMultiTexCoord1i) | |
796 | && FindProcShort (myGlCore20, glMultiTexCoord1iv) | |
797 | && FindProcShort (myGlCore20, glMultiTexCoord1s) | |
798 | && FindProcShort (myGlCore20, glMultiTexCoord1sv) | |
799 | && FindProcShort (myGlCore20, glMultiTexCoord2d) | |
800 | && FindProcShort (myGlCore20, glMultiTexCoord2dv) | |
801 | && FindProcShort (myGlCore20, glMultiTexCoord2f) | |
802 | && FindProcShort (myGlCore20, glMultiTexCoord2fv) | |
803 | && FindProcShort (myGlCore20, glMultiTexCoord2i) | |
804 | && FindProcShort (myGlCore20, glMultiTexCoord2iv) | |
805 | && FindProcShort (myGlCore20, glMultiTexCoord2s) | |
806 | && FindProcShort (myGlCore20, glMultiTexCoord2sv) | |
807 | && FindProcShort (myGlCore20, glMultiTexCoord3d) | |
808 | && FindProcShort (myGlCore20, glMultiTexCoord3dv) | |
809 | && FindProcShort (myGlCore20, glMultiTexCoord3f) | |
810 | && FindProcShort (myGlCore20, glMultiTexCoord3fv) | |
811 | && FindProcShort (myGlCore20, glMultiTexCoord3i) | |
812 | && FindProcShort (myGlCore20, glMultiTexCoord3iv) | |
813 | && FindProcShort (myGlCore20, glMultiTexCoord3s) | |
814 | && FindProcShort (myGlCore20, glMultiTexCoord3sv) | |
815 | && FindProcShort (myGlCore20, glMultiTexCoord4d) | |
816 | && FindProcShort (myGlCore20, glMultiTexCoord4dv) | |
817 | && FindProcShort (myGlCore20, glMultiTexCoord4f) | |
818 | && FindProcShort (myGlCore20, glMultiTexCoord4fv) | |
819 | && FindProcShort (myGlCore20, glMultiTexCoord4i) | |
820 | && FindProcShort (myGlCore20, glMultiTexCoord4iv) | |
821 | && FindProcShort (myGlCore20, glMultiTexCoord4s) | |
822 | && FindProcShort (myGlCore20, glMultiTexCoord4sv) | |
823 | && FindProcShort (myGlCore20, glLoadTransposeMatrixf) | |
824 | && FindProcShort (myGlCore20, glLoadTransposeMatrixd) | |
825 | && FindProcShort (myGlCore20, glMultTransposeMatrixf) | |
826 | && FindProcShort (myGlCore20, glMultTransposeMatrixd); | |
30f0ad28 | 827 | |
86325709 | 828 | // Check if OpenGL 1.4 core functionality is actually present |
829 | Standard_Boolean hasGlCore14 = IsGlGreaterEqual (1, 4) | |
830 | && FindProcShort (myGlCore20, glBlendFuncSeparate) | |
831 | && FindProcShort (myGlCore20, glMultiDrawArrays) | |
832 | && FindProcShort (myGlCore20, glMultiDrawElements) | |
833 | && FindProcShort (myGlCore20, glPointParameterf) | |
834 | && FindProcShort (myGlCore20, glPointParameterfv) | |
835 | && FindProcShort (myGlCore20, glPointParameteri) | |
836 | && FindProcShort (myGlCore20, glPointParameteriv); | |
837 | ||
838 | // Check if OpenGL 1.5 core functionality is actually present | |
839 | Standard_Boolean hasGlCore15 = IsGlGreaterEqual (1, 5) | |
840 | && FindProcShort (myGlCore20, glGenQueries) | |
841 | && FindProcShort (myGlCore20, glDeleteQueries) | |
842 | && FindProcShort (myGlCore20, glIsQuery) | |
843 | && FindProcShort (myGlCore20, glBeginQuery) | |
844 | && FindProcShort (myGlCore20, glEndQuery) | |
845 | && FindProcShort (myGlCore20, glGetQueryiv) | |
846 | && FindProcShort (myGlCore20, glGetQueryObjectiv) | |
847 | && FindProcShort (myGlCore20, glGetQueryObjectuiv) | |
848 | && FindProcShort (myGlCore20, glBindBuffer) | |
849 | && FindProcShort (myGlCore20, glDeleteBuffers) | |
850 | && FindProcShort (myGlCore20, glGenBuffers) | |
851 | && FindProcShort (myGlCore20, glIsBuffer) | |
852 | && FindProcShort (myGlCore20, glBufferData) | |
853 | && FindProcShort (myGlCore20, glBufferSubData) | |
854 | && FindProcShort (myGlCore20, glGetBufferSubData) | |
855 | && FindProcShort (myGlCore20, glMapBuffer) | |
856 | && FindProcShort (myGlCore20, glUnmapBuffer) | |
857 | && FindProcShort (myGlCore20, glGetBufferParameteriv) | |
858 | && FindProcShort (myGlCore20, glGetBufferPointerv); | |
859 | ||
860 | // Check if OpenGL 2.0 core functionality is actually present | |
861 | Standard_Boolean hasGlCore20 = IsGlGreaterEqual (2, 0) | |
862 | && FindProcShort (myGlCore20, glBlendEquationSeparate) | |
863 | && FindProcShort (myGlCore20, glDrawBuffers) | |
864 | && FindProcShort (myGlCore20, glStencilOpSeparate) | |
865 | && FindProcShort (myGlCore20, glStencilFuncSeparate) | |
866 | && FindProcShort (myGlCore20, glStencilMaskSeparate) | |
867 | && FindProcShort (myGlCore20, glAttachShader) | |
868 | && FindProcShort (myGlCore20, glBindAttribLocation) | |
869 | && FindProcShort (myGlCore20, glCompileShader) | |
870 | && FindProcShort (myGlCore20, glCreateProgram) | |
871 | && FindProcShort (myGlCore20, glCreateShader) | |
872 | && FindProcShort (myGlCore20, glDeleteProgram) | |
873 | && FindProcShort (myGlCore20, glDeleteShader) | |
874 | && FindProcShort (myGlCore20, glDetachShader) | |
875 | && FindProcShort (myGlCore20, glDisableVertexAttribArray) | |
876 | && FindProcShort (myGlCore20, glEnableVertexAttribArray) | |
877 | && FindProcShort (myGlCore20, glGetActiveAttrib) | |
878 | && FindProcShort (myGlCore20, glGetActiveUniform) | |
879 | && FindProcShort (myGlCore20, glGetAttachedShaders) | |
880 | && FindProcShort (myGlCore20, glGetAttribLocation) | |
881 | && FindProcShort (myGlCore20, glGetProgramiv) | |
882 | && FindProcShort (myGlCore20, glGetProgramInfoLog) | |
883 | && FindProcShort (myGlCore20, glGetShaderiv) | |
884 | && FindProcShort (myGlCore20, glGetShaderInfoLog) | |
885 | && FindProcShort (myGlCore20, glGetShaderSource) | |
886 | && FindProcShort (myGlCore20, glGetUniformLocation) | |
887 | && FindProcShort (myGlCore20, glGetUniformfv) | |
888 | && FindProcShort (myGlCore20, glGetUniformiv) | |
889 | && FindProcShort (myGlCore20, glGetVertexAttribdv) | |
890 | && FindProcShort (myGlCore20, glGetVertexAttribfv) | |
891 | && FindProcShort (myGlCore20, glGetVertexAttribiv) | |
892 | && FindProcShort (myGlCore20, glGetVertexAttribPointerv) | |
893 | && FindProcShort (myGlCore20, glIsProgram) | |
894 | && FindProcShort (myGlCore20, glIsShader) | |
895 | && FindProcShort (myGlCore20, glLinkProgram) | |
896 | && FindProcShort (myGlCore20, glShaderSource) | |
897 | && FindProcShort (myGlCore20, glUseProgram) | |
898 | && FindProcShort (myGlCore20, glUniform1f) | |
899 | && FindProcShort (myGlCore20, glUniform2f) | |
900 | && FindProcShort (myGlCore20, glUniform3f) | |
901 | && FindProcShort (myGlCore20, glUniform4f) | |
902 | && FindProcShort (myGlCore20, glUniform1i) | |
903 | && FindProcShort (myGlCore20, glUniform2i) | |
904 | && FindProcShort (myGlCore20, glUniform3i) | |
905 | && FindProcShort (myGlCore20, glUniform4i) | |
906 | && FindProcShort (myGlCore20, glUniform1fv) | |
907 | && FindProcShort (myGlCore20, glUniform2fv) | |
908 | && FindProcShort (myGlCore20, glUniform3fv) | |
909 | && FindProcShort (myGlCore20, glUniform4fv) | |
910 | && FindProcShort (myGlCore20, glUniform1iv) | |
911 | && FindProcShort (myGlCore20, glUniform2iv) | |
912 | && FindProcShort (myGlCore20, glUniform3iv) | |
913 | && FindProcShort (myGlCore20, glUniform4iv) | |
914 | && FindProcShort (myGlCore20, glUniformMatrix2fv) | |
915 | && FindProcShort (myGlCore20, glUniformMatrix3fv) | |
916 | && FindProcShort (myGlCore20, glUniformMatrix4fv) | |
917 | && FindProcShort (myGlCore20, glValidateProgram) | |
918 | && FindProcShort (myGlCore20, glVertexAttrib1d) | |
919 | && FindProcShort (myGlCore20, glVertexAttrib1dv) | |
920 | && FindProcShort (myGlCore20, glVertexAttrib1f) | |
921 | && FindProcShort (myGlCore20, glVertexAttrib1fv) | |
922 | && FindProcShort (myGlCore20, glVertexAttrib1s) | |
923 | && FindProcShort (myGlCore20, glVertexAttrib1sv) | |
924 | && FindProcShort (myGlCore20, glVertexAttrib2d) | |
925 | && FindProcShort (myGlCore20, glVertexAttrib2dv) | |
926 | && FindProcShort (myGlCore20, glVertexAttrib2f) | |
927 | && FindProcShort (myGlCore20, glVertexAttrib2fv) | |
928 | && FindProcShort (myGlCore20, glVertexAttrib2s) | |
929 | && FindProcShort (myGlCore20, glVertexAttrib2sv) | |
930 | && FindProcShort (myGlCore20, glVertexAttrib3d) | |
931 | && FindProcShort (myGlCore20, glVertexAttrib3dv) | |
932 | && FindProcShort (myGlCore20, glVertexAttrib3f) | |
933 | && FindProcShort (myGlCore20, glVertexAttrib3fv) | |
934 | && FindProcShort (myGlCore20, glVertexAttrib3s) | |
935 | && FindProcShort (myGlCore20, glVertexAttrib3sv) | |
936 | && FindProcShort (myGlCore20, glVertexAttrib4Nbv) | |
937 | && FindProcShort (myGlCore20, glVertexAttrib4Niv) | |
938 | && FindProcShort (myGlCore20, glVertexAttrib4Nsv) | |
939 | && FindProcShort (myGlCore20, glVertexAttrib4Nub) | |
940 | && FindProcShort (myGlCore20, glVertexAttrib4Nubv) | |
941 | && FindProcShort (myGlCore20, glVertexAttrib4Nuiv) | |
942 | && FindProcShort (myGlCore20, glVertexAttrib4Nusv) | |
943 | && FindProcShort (myGlCore20, glVertexAttrib4bv) | |
944 | && FindProcShort (myGlCore20, glVertexAttrib4d) | |
945 | && FindProcShort (myGlCore20, glVertexAttrib4dv) | |
946 | && FindProcShort (myGlCore20, glVertexAttrib4f) | |
947 | && FindProcShort (myGlCore20, glVertexAttrib4fv) | |
948 | && FindProcShort (myGlCore20, glVertexAttrib4iv) | |
949 | && FindProcShort (myGlCore20, glVertexAttrib4s) | |
950 | && FindProcShort (myGlCore20, glVertexAttrib4sv) | |
951 | && FindProcShort (myGlCore20, glVertexAttrib4ubv) | |
952 | && FindProcShort (myGlCore20, glVertexAttrib4uiv) | |
953 | && FindProcShort (myGlCore20, glVertexAttrib4usv) | |
954 | && FindProcShort (myGlCore20, glVertexAttribPointer); | |
955 | ||
956 | if (!hasGlCore12) | |
957 | { | |
958 | myGlVerMajor = 1; | |
959 | myGlVerMinor = 1; | |
960 | return; | |
5f8b738e | 961 | } |
86325709 | 962 | else |
5f8b738e | 963 | { |
86325709 | 964 | core12 = myGlCore20; |
5f8b738e | 965 | } |
86325709 | 966 | if (!hasGlCore13) |
5f8b738e | 967 | { |
86325709 | 968 | myGlVerMajor = 1; |
969 | myGlVerMinor = 2; | |
970 | return; | |
5f8b738e | 971 | } |
86325709 | 972 | else |
973 | { | |
974 | core13 = myGlCore20; | |
5f8b738e | 975 | } |
86325709 | 976 | if(!hasGlCore14) |
977 | { | |
978 | myGlVerMajor = 1; | |
979 | myGlVerMinor = 3; | |
980 | return; | |
5f8b738e | 981 | } |
86325709 | 982 | else |
5f8b738e | 983 | { |
5f8b738e | 984 | core14 = myGlCore20; |
86325709 | 985 | } |
986 | if(!hasGlCore15) | |
987 | { | |
988 | myGlVerMajor = 1; | |
989 | myGlVerMinor = 4; | |
990 | return; | |
991 | } | |
992 | else | |
993 | { | |
5f8b738e | 994 | core15 = myGlCore20; |
86325709 | 995 | } |
996 | if(!hasGlCore20) | |
997 | { | |
998 | myGlVerMajor = 1; | |
999 | myGlVerMinor = 5; | |
1000 | } | |
1001 | else | |
1002 | { | |
5f8b738e | 1003 | core20 = myGlCore20; |
1004 | } | |
2166f0fa | 1005 | } |
664cae74 | 1006 | // ======================================================================= |
1007 | // function : IsFeedback | |
1008 | // purpose : | |
1009 | // ======================================================================= | |
1010 | Standard_Boolean OpenGl_Context::IsFeedback() const | |
1011 | { | |
1012 | return myIsFeedback; | |
1013 | } | |
1014 | ||
1015 | // ======================================================================= | |
1016 | // function : SetFeedback | |
1017 | // purpose : | |
1018 | // ======================================================================= | |
1019 | void OpenGl_Context::SetFeedback (const Standard_Boolean theFeedbackOn) | |
1020 | { | |
1021 | myIsFeedback = theFeedbackOn; | |
1022 | } | |
f0430952 | 1023 | |
1024 | // ======================================================================= | |
1025 | // function : MemoryInfo | |
1026 | // purpose : | |
1027 | // ======================================================================= | |
1028 | Standard_Size OpenGl_Context::AvailableMemory() const | |
1029 | { | |
1030 | if (atiMem) | |
1031 | { | |
1032 | // this is actually information for VBO pool | |
1033 | // however because pools are mostly shared | |
1034 | // it can be used for total GPU memory estimations | |
1035 | GLint aMemInfo[4]; | |
1036 | aMemInfo[0] = 0; | |
1037 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aMemInfo); | |
1038 | // returned value is in KiB, however this maybe changed in future | |
1039 | return Standard_Size(aMemInfo[0]) * 1024; | |
1040 | } | |
1041 | else if (nvxMem) | |
1042 | { | |
1043 | // current available dedicated video memory (in KiB), currently unused GPU memory | |
1044 | GLint aMemInfo = 0; | |
1045 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aMemInfo); | |
1046 | return Standard_Size(aMemInfo) * 1024; | |
1047 | } | |
1048 | return 0; | |
1049 | } | |
1050 | ||
1051 | // ======================================================================= | |
1052 | // function : MemoryInfo | |
1053 | // purpose : | |
1054 | // ======================================================================= | |
1055 | TCollection_AsciiString OpenGl_Context::MemoryInfo() const | |
1056 | { | |
1057 | TCollection_AsciiString anInfo; | |
1058 | if (atiMem) | |
1059 | { | |
1060 | GLint aValues[4]; | |
1061 | memset (aValues, 0, sizeof(aValues)); | |
1062 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aValues); | |
1063 | ||
1064 | // total memory free in the pool | |
1065 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValues[0] / 1024) + " MiB\n"; | |
1066 | ||
1067 | // largest available free block in the pool | |
1068 | anInfo += TCollection_AsciiString (" Largest free block: ") + (aValues[1] / 1024) + " MiB\n"; | |
1069 | if (aValues[2] != aValues[0]) | |
1070 | { | |
1071 | // total auxiliary memory free | |
1072 | anInfo += TCollection_AsciiString (" Free memory: ") + (aValues[2] / 1024) + " MiB\n"; | |
1073 | } | |
1074 | } | |
1075 | else if (nvxMem) | |
1076 | { | |
1077 | //current available dedicated video memory (in KiB), currently unused GPU memory | |
1078 | GLint aValue = 0; | |
1079 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aValue); | |
1080 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValue / 1024) + " MiB\n"; | |
1081 | ||
1082 | // dedicated video memory, total size (in KiB) of the GPU memory | |
1083 | GLint aDedicated = 0; | |
1084 | glGetIntegerv (GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &aDedicated); | |
1085 | anInfo += TCollection_AsciiString (" GPU memory: ") + (aDedicated / 1024) + " MiB\n"; | |
1086 | ||
1087 | // total available memory, total size (in KiB) of the memory available for allocations | |
1088 | glGetIntegerv (GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &aValue); | |
1089 | if (aValue != aDedicated) | |
1090 | { | |
1091 | // different only for special configurations | |
1092 | anInfo += TCollection_AsciiString (" Total memory: ") + (aValue / 1024) + " MiB\n"; | |
1093 | } | |
1094 | } | |
1095 | return anInfo; | |
1096 | } | |
5e27df78 | 1097 | |
1098 | ||
1099 | // ======================================================================= | |
1100 | // function : GetResource | |
1101 | // purpose : | |
1102 | // ======================================================================= | |
1103 | const Handle(OpenGl_Resource)& OpenGl_Context::GetResource (const TCollection_AsciiString& theKey) const | |
1104 | { | |
1105 | return mySharedResources->IsBound (theKey) ? mySharedResources->Find (theKey) : NULL_GL_RESOURCE; | |
1106 | } | |
1107 | ||
1108 | // ======================================================================= | |
1109 | // function : ShareResource | |
1110 | // purpose : | |
1111 | // ======================================================================= | |
1112 | Standard_Boolean OpenGl_Context::ShareResource (const TCollection_AsciiString& theKey, | |
1113 | const Handle(OpenGl_Resource)& theResource) | |
1114 | { | |
1115 | if (theKey.IsEmpty() || theResource.IsNull()) | |
1116 | { | |
1117 | return Standard_False; | |
1118 | } | |
1119 | return mySharedResources->Bind (theKey, theResource); | |
1120 | } | |
1121 | ||
1122 | // ======================================================================= | |
1123 | // function : ReleaseResource | |
1124 | // purpose : | |
1125 | // ======================================================================= | |
a174a3c5 | 1126 | void OpenGl_Context::ReleaseResource (const TCollection_AsciiString& theKey, |
1127 | const Standard_Boolean theToDelay) | |
5e27df78 | 1128 | { |
1129 | if (!mySharedResources->IsBound (theKey)) | |
1130 | { | |
1131 | return; | |
1132 | } | |
1133 | const Handle(OpenGl_Resource)& aRes = mySharedResources->Find (theKey); | |
1134 | if (aRes->GetRefCount() > 1) | |
1135 | { | |
1136 | return; | |
1137 | } | |
1138 | ||
a174a3c5 | 1139 | if (theToDelay) |
1140 | { | |
1141 | myDelayed->Bind (theKey, 1); | |
1142 | } | |
1143 | else | |
1144 | { | |
1145 | aRes->Release (this); | |
1146 | mySharedResources->UnBind (theKey); | |
1147 | } | |
5e27df78 | 1148 | } |
1149 | ||
1150 | // ======================================================================= | |
1151 | // function : DelayedRelease | |
1152 | // purpose : | |
1153 | // ======================================================================= | |
1154 | void OpenGl_Context::DelayedRelease (Handle(OpenGl_Resource)& theResource) | |
1155 | { | |
1156 | myReleaseQueue->Push (theResource); | |
1157 | theResource.Nullify(); | |
1158 | } | |
1159 | ||
1160 | // ======================================================================= | |
1161 | // function : ReleaseDelayed | |
1162 | // purpose : | |
1163 | // ======================================================================= | |
1164 | void OpenGl_Context::ReleaseDelayed() | |
1165 | { | |
a174a3c5 | 1166 | // release queued elements |
5e27df78 | 1167 | while (!myReleaseQueue->IsEmpty()) |
1168 | { | |
1169 | myReleaseQueue->Front()->Release (this); | |
1170 | myReleaseQueue->Pop(); | |
1171 | } | |
a174a3c5 | 1172 | |
1173 | // release delayed shared resoruces | |
1174 | NCollection_Vector<TCollection_AsciiString> aDeadList; | |
1175 | for (NCollection_DataMap<TCollection_AsciiString, Standard_Integer>::Iterator anIter (*myDelayed); | |
1176 | anIter.More(); anIter.Next()) | |
1177 | { | |
1178 | if (++anIter.ChangeValue() <= 2) | |
1179 | { | |
1180 | continue; // postpone release one more frame to ensure noone use it periodically | |
1181 | } | |
1182 | ||
1183 | const TCollection_AsciiString& aKey = anIter.Key(); | |
1184 | if (!mySharedResources->IsBound (aKey)) | |
1185 | { | |
1186 | // mixed unshared strategy delayed/undelayed was used! | |
1187 | aDeadList.Append (aKey); | |
1188 | continue; | |
1189 | } | |
1190 | ||
1191 | Handle(OpenGl_Resource)& aRes = mySharedResources->ChangeFind (aKey); | |
1192 | if (aRes->GetRefCount() > 1) | |
1193 | { | |
1194 | // should be only 1 instance in mySharedResources | |
1195 | // if not - resource was reused again | |
1196 | aDeadList.Append (aKey); | |
1197 | continue; | |
1198 | } | |
1199 | ||
1200 | // release resource if no one requiested it more than 2 redraw calls | |
1201 | aRes->Release (this); | |
1202 | mySharedResources->UnBind (aKey); | |
1203 | aDeadList.Append (aKey); | |
1204 | } | |
1205 | ||
1206 | for (Standard_Integer anIter = 0; anIter < aDeadList.Length(); ++anIter) | |
1207 | { | |
1208 | myDelayed->UnBind (aDeadList.Value (anIter)); | |
1209 | } | |
5e27df78 | 1210 | } |