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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 | // |
d5f74e42 | 7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
973c2be1 | 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 | ||
5e27df78 | 22 | #include <OpenGl_ArbTBO.hxx> |
23 | #include <OpenGl_ArbIns.hxx> | |
58655684 | 24 | #include <OpenGl_ArbDbg.hxx> |
01ca42b2 | 25 | #include <OpenGl_ArbFBO.hxx> |
37eb4787 | 26 | #include <OpenGl_ExtGS.hxx> |
5f8b738e | 27 | #include <OpenGl_GlCore20.hxx> |
30f0ad28 | 28 | #include <OpenGl_ShaderManager.hxx> |
5f8b738e | 29 | |
cbf18624 | 30 | #include <Message_Messenger.hxx> |
30f0ad28 | 31 | |
a174a3c5 | 32 | #include <NCollection_Vector.hxx> |
33 | ||
2bd4c032 | 34 | #include <Standard_ProgramError.hxx> |
35 | ||
da8bb41d | 36 | #if defined(HAVE_EGL) |
37 | #include <EGL/egl.h> | |
38 | #ifdef _MSC_VER | |
39 | #pragma comment(lib, "libEGL.lib") | |
40 | #endif | |
41 | #elif defined(_WIN32) | |
5f8b738e | 42 | // |
43 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
44 | #include <dlfcn.h> | |
45 | #else | |
46 | #include <GL/glx.h> // glXGetProcAddress() | |
47 | #endif | |
48 | ||
f0430952 | 49 | // GL_NVX_gpu_memory_info |
50 | #ifndef GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX | |
51 | enum | |
52 | { | |
53 | GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX = 0x9047, | |
54 | GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX = 0x9048, | |
55 | GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX = 0x9049, | |
56 | GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX = 0x904A, | |
57 | GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX = 0x904B | |
58 | }; | |
59 | #endif | |
60 | ||
2166f0fa SK |
61 | IMPLEMENT_STANDARD_HANDLE (OpenGl_Context, Standard_Transient) |
62 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Context, Standard_Transient) | |
63 | ||
5e27df78 | 64 | namespace |
65 | { | |
66 | static const Handle(OpenGl_Resource) NULL_GL_RESOURCE; | |
01ca42b2 | 67 | } |
5e27df78 | 68 | |
2166f0fa SK |
69 | // ======================================================================= |
70 | // function : OpenGl_Context | |
71 | // purpose : | |
72 | // ======================================================================= | |
58655684 | 73 | OpenGl_Context::OpenGl_Context (const Handle(OpenGl_Caps)& theCaps) |
01ca42b2 | 74 | : core11 (NULL), |
75 | core11fwd (NULL), | |
76 | core15 (NULL), | |
77 | core15fwd (NULL), | |
78 | core20 (NULL), | |
79 | core20fwd (NULL), | |
80 | core32 (NULL), | |
81 | core32back (NULL), | |
82 | core41 (NULL), | |
83 | core41back (NULL), | |
84 | core42 (NULL), | |
85 | core42back (NULL), | |
86 | core43 (NULL), | |
87 | core43back (NULL), | |
88 | core44 (NULL), | |
89 | core44back (NULL), | |
58655684 | 90 | caps (!theCaps.IsNull() ? theCaps : new OpenGl_Caps()), |
bf75be98 | 91 | arbNPTW(Standard_False), |
5e27df78 | 92 | arbTBO (NULL), |
93 | arbIns (NULL), | |
58655684 | 94 | arbDbg (NULL), |
01ca42b2 | 95 | arbFBO (NULL), |
37eb4787 | 96 | extGS (NULL), |
bf75be98 | 97 | extBgra(Standard_False), |
98 | extAnis(Standard_False), | |
30f0ad28 | 99 | extPDS (Standard_False), |
f0430952 | 100 | atiMem (Standard_False), |
101 | nvxMem (Standard_False), | |
5e27df78 | 102 | mySharedResources (new OpenGl_ResourcesMap()), |
a174a3c5 | 103 | myDelayed (new OpenGl_DelayReleaseMap()), |
3125ebb6 | 104 | myUnusedResources (new OpenGl_ResourcesStack()), |
4269bd1b | 105 | myClippingState (), |
5f8b738e | 106 | myGlLibHandle (NULL), |
01ca42b2 | 107 | myFuncs (new OpenGl_GlFunctions()), |
2f6cb3ac | 108 | myAnisoMax (1), |
eafb234b | 109 | myMaxTexDim (1024), |
4269bd1b | 110 | myMaxClipPlanes (6), |
5f8b738e | 111 | myGlVerMajor (0), |
112 | myGlVerMinor (0), | |
b5ac8292 | 113 | myIsInitialized (Standard_False), |
114 | myIsStereoBuffers (Standard_False), | |
7d3e64ef | 115 | myRenderMode (GL_RENDER), |
b5ac8292 | 116 | myDrawBuffer (0) |
2166f0fa | 117 | { |
5f8b738e | 118 | #if defined(MAC_OS_X_VERSION_10_3) && !defined(MACOSX_USE_GLX) |
119 | // Vendors can not extend functionality on this system | |
120 | // and developers are limited to OpenGL support provided by Mac OS X SDK. | |
121 | // We retrieve function pointers from system library | |
122 | // to generalize extensions support on all platforms. | |
123 | // In this way we also reach binary compatibility benefit between OS releases | |
124 | // if some newest functionality is optionally used. | |
125 | // Notice that GL version / extension availability checks are required | |
126 | // because function pointers may be available but not functionality itself | |
127 | // (depends on renderer). | |
128 | myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY); | |
129 | #endif | |
01ca42b2 | 130 | memset (myFuncs.operator->(), 0, sizeof(OpenGl_GlFunctions)); |
30f0ad28 | 131 | myShaderManager = new OpenGl_ShaderManager (this); |
2166f0fa SK |
132 | } |
133 | ||
134 | // ======================================================================= | |
135 | // function : ~OpenGl_Context | |
136 | // purpose : | |
137 | // ======================================================================= | |
138 | OpenGl_Context::~OpenGl_Context() | |
139 | { | |
5e27df78 | 140 | // release clean up queue |
141 | ReleaseDelayed(); | |
142 | ||
143 | // release shared resources if any | |
144 | if (((const Handle(Standard_Transient)& )mySharedResources)->GetRefCount() <= 1) | |
145 | { | |
392ac980 | 146 | myShaderManager.Nullify(); |
5e27df78 | 147 | for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources); |
148 | anIter.More(); anIter.Next()) | |
149 | { | |
150 | anIter.Value()->Release (this); | |
151 | } | |
152 | } | |
392ac980 | 153 | else |
154 | { | |
155 | myShaderManager->SetContext (NULL); | |
156 | } | |
5e27df78 | 157 | mySharedResources.Nullify(); |
a174a3c5 | 158 | myDelayed.Nullify(); |
5e27df78 | 159 | |
cbf18624 | 160 | if (arbDbg != NULL |
f8c8ba7a | 161 | && caps->contextDebug |
162 | && IsValid()) | |
cbf18624 | 163 | { |
164 | // reset callback | |
165 | void* aPtr = NULL; | |
166 | glGetPointerv (GL_DEBUG_CALLBACK_USER_PARAM_ARB, &aPtr); | |
167 | if (aPtr == this) | |
168 | { | |
169 | arbDbg->glDebugMessageCallbackARB (NULL, NULL); | |
170 | } | |
171 | } | |
5f8b738e | 172 | } |
173 | ||
bf75be98 | 174 | // ======================================================================= |
175 | // function : MaxDegreeOfAnisotropy | |
176 | // purpose : | |
177 | // ======================================================================= | |
178 | Standard_Integer OpenGl_Context::MaxDegreeOfAnisotropy() const | |
179 | { | |
180 | return myAnisoMax; | |
181 | } | |
182 | ||
183 | // ======================================================================= | |
184 | // function : MaxTextureSize | |
185 | // purpose : | |
186 | // ======================================================================= | |
187 | Standard_Integer OpenGl_Context::MaxTextureSize() const | |
188 | { | |
189 | return myMaxTexDim; | |
190 | } | |
191 | ||
4269bd1b | 192 | // ======================================================================= |
193 | // function : MaxClipPlanes | |
194 | // purpose : | |
195 | // ======================================================================= | |
196 | Standard_Integer OpenGl_Context::MaxClipPlanes() const | |
197 | { | |
198 | return myMaxClipPlanes; | |
199 | } | |
200 | ||
b5ac8292 | 201 | // ======================================================================= |
202 | // function : SetDrawBufferLeft | |
203 | // purpose : | |
204 | // ======================================================================= | |
205 | void OpenGl_Context::SetDrawBufferLeft() | |
206 | { | |
207 | switch (myDrawBuffer) | |
208 | { | |
209 | case GL_BACK_RIGHT : | |
210 | case GL_BACK : | |
211 | glDrawBuffer (GL_BACK_LEFT); | |
212 | myDrawBuffer = GL_BACK_LEFT; | |
213 | break; | |
214 | ||
215 | case GL_FRONT_RIGHT : | |
216 | case GL_FRONT : | |
217 | glDrawBuffer (GL_FRONT_LEFT); | |
218 | myDrawBuffer = GL_FRONT_LEFT; | |
219 | break; | |
220 | ||
221 | case GL_FRONT_AND_BACK : | |
222 | case GL_RIGHT : | |
223 | glDrawBuffer (GL_LEFT); | |
224 | myDrawBuffer = GL_LEFT; | |
225 | break; | |
226 | } | |
227 | } | |
228 | ||
229 | // ======================================================================= | |
230 | // function : SetDrawBufferRight | |
231 | // purpose : | |
232 | // ======================================================================= | |
233 | void OpenGl_Context::SetDrawBufferRight() | |
234 | { | |
235 | switch (myDrawBuffer) | |
236 | { | |
237 | case GL_BACK_LEFT : | |
238 | case GL_BACK : | |
239 | glDrawBuffer (GL_BACK_RIGHT); | |
240 | myDrawBuffer = GL_BACK_RIGHT; | |
241 | break; | |
242 | ||
243 | case GL_FRONT_LEFT : | |
244 | case GL_FRONT : | |
245 | glDrawBuffer (GL_FRONT_RIGHT); | |
246 | myDrawBuffer = GL_FRONT_RIGHT; | |
247 | break; | |
248 | ||
249 | case GL_FRONT_AND_BACK : | |
250 | case GL_LEFT : | |
251 | glDrawBuffer (GL_RIGHT); | |
252 | myDrawBuffer = GL_RIGHT; | |
253 | break; | |
254 | } | |
255 | } | |
256 | ||
257 | // ======================================================================= | |
258 | // function : SetDrawBufferMono | |
259 | // purpose : | |
260 | // ======================================================================= | |
261 | void OpenGl_Context::SetDrawBufferMono() | |
262 | { | |
263 | switch (myDrawBuffer) | |
264 | { | |
265 | case GL_BACK_LEFT : | |
266 | case GL_BACK_RIGHT : | |
267 | glDrawBuffer (GL_BACK); | |
268 | myDrawBuffer = GL_BACK; | |
269 | break; | |
270 | ||
271 | case GL_FRONT_LEFT : | |
272 | case GL_FRONT_RIGHT : | |
273 | glDrawBuffer (GL_FRONT); | |
274 | myDrawBuffer = GL_FRONT; | |
275 | break; | |
276 | ||
277 | case GL_LEFT : | |
278 | case GL_RIGHT : | |
279 | glDrawBuffer (GL_FRONT_AND_BACK); | |
280 | myDrawBuffer = GL_FRONT_AND_BACK; | |
281 | break; | |
282 | } | |
283 | } | |
284 | ||
285 | // ======================================================================= | |
286 | // function : FetchState | |
287 | // purpose : | |
288 | // ======================================================================= | |
289 | void OpenGl_Context::FetchState() | |
290 | { | |
291 | // cache feedback mode state | |
292 | glGetIntegerv (GL_RENDER_MODE, &myRenderMode); | |
293 | ||
294 | // cache draw buffer state | |
295 | glGetIntegerv (GL_DRAW_BUFFER, &myDrawBuffer); | |
296 | } | |
297 | ||
5e27df78 | 298 | // ======================================================================= |
299 | // function : Share | |
300 | // purpose : | |
301 | // ======================================================================= | |
302 | void OpenGl_Context::Share (const Handle(OpenGl_Context)& theShareCtx) | |
303 | { | |
304 | if (!theShareCtx.IsNull()) | |
305 | { | |
306 | mySharedResources = theShareCtx->mySharedResources; | |
a174a3c5 | 307 | myDelayed = theShareCtx->myDelayed; |
3125ebb6 | 308 | myUnusedResources = theShareCtx->myUnusedResources; |
392ac980 | 309 | myShaderManager = theShareCtx->myShaderManager; |
5e27df78 | 310 | } |
311 | } | |
312 | ||
4fe56619 | 313 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
314 | ||
86fa64d9 | 315 | // ======================================================================= |
316 | // function : IsCurrent | |
317 | // purpose : | |
318 | // ======================================================================= | |
319 | Standard_Boolean OpenGl_Context::IsCurrent() const | |
320 | { | |
da8bb41d | 321 | #if defined(HAVE_EGL) |
322 | if ((EGLDisplay )myDisplay == EGL_NO_DISPLAY | |
323 | || (EGLSurface )myWindow == EGL_NO_SURFACE | |
324 | || (EGLContext )myGContext == EGL_NO_CONTEXT) | |
325 | { | |
326 | return Standard_False; | |
327 | } | |
328 | ||
329 | return (((EGLDisplay )myDisplay == eglGetCurrentDisplay()) | |
330 | && ((EGLContext )myGContext == eglGetCurrentContext()) | |
331 | && ((EGLSurface )myWindow == eglGetCurrentSurface (EGL_DRAW))); | |
332 | #elif defined(_WIN32) | |
86fa64d9 | 333 | if (myWindowDC == NULL || myGContext == NULL) |
334 | { | |
335 | return Standard_False; | |
336 | } | |
337 | return (( (HDC )myWindowDC == wglGetCurrentDC()) | |
338 | && ((HGLRC )myGContext == wglGetCurrentContext())); | |
339 | #else | |
340 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) | |
341 | { | |
342 | return Standard_False; | |
343 | } | |
344 | ||
345 | return ( ((Display* )myDisplay == glXGetCurrentDisplay()) | |
346 | && ((GLXContext )myGContext == glXGetCurrentContext()) | |
347 | && ((GLXDrawable )myWindow == glXGetCurrentDrawable())); | |
348 | #endif | |
349 | } | |
350 | ||
2bd4c032 | 351 | // ======================================================================= |
352 | // function : MakeCurrent | |
353 | // purpose : | |
354 | // ======================================================================= | |
355 | Standard_Boolean OpenGl_Context::MakeCurrent() | |
356 | { | |
da8bb41d | 357 | #if defined(HAVE_EGL) |
358 | if ((EGLDisplay )myDisplay == EGL_NO_DISPLAY | |
359 | || (EGLSurface )myWindow == EGL_NO_SURFACE | |
360 | || (EGLContext )myGContext == EGL_NO_CONTEXT) | |
361 | { | |
362 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
363 | return Standard_False; | |
364 | } | |
365 | ||
366 | if (eglMakeCurrent ((EGLDisplay )myDisplay, (EGLSurface )myWindow, (EGLSurface )myWindow, (EGLContext )myGContext) != EGL_TRUE) | |
367 | { | |
368 | // if there is no current context it might be impossible to use glGetError() correctly | |
369 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, | |
370 | "eglMakeCurrent() has failed!"); | |
371 | myIsInitialized = Standard_False; | |
372 | return Standard_False; | |
373 | } | |
374 | #elif defined(_WIN32) | |
86fa64d9 | 375 | if (myWindowDC == NULL || myGContext == NULL) |
2bd4c032 | 376 | { |
86fa64d9 | 377 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); |
378 | return Standard_False; | |
379 | } | |
380 | ||
381 | // technically it should be safe to activate already bound GL context | |
382 | // however some drivers (Intel etc.) may FAIL doing this for unknown reason | |
383 | if (IsCurrent()) | |
384 | { | |
392ac980 | 385 | myShaderManager->SetContext (this); |
86fa64d9 | 386 | return Standard_True; |
387 | } | |
388 | else if (wglMakeCurrent ((HDC )myWindowDC, (HGLRC )myGContext) != TRUE) | |
389 | { | |
390 | // notice that glGetError() couldn't be used here! | |
391 | wchar_t* aMsgBuff = NULL; | |
392 | DWORD anErrorCode = GetLastError(); | |
393 | FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, | |
394 | NULL, anErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (wchar_t* )&aMsgBuff, 0, NULL); | |
cbf18624 | 395 | TCollection_ExtendedString aMsg ("wglMakeCurrent() has failed. "); |
86fa64d9 | 396 | if (aMsgBuff != NULL) |
397 | { | |
cbf18624 | 398 | aMsg += (Standard_ExtString )aMsgBuff; |
86fa64d9 | 399 | LocalFree (aMsgBuff); |
400 | } | |
cbf18624 | 401 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, (unsigned int )anErrorCode, GL_DEBUG_SEVERITY_HIGH_ARB, aMsg); |
fd4a6963 | 402 | myIsInitialized = Standard_False; |
2bd4c032 | 403 | return Standard_False; |
404 | } | |
405 | #else | |
86fa64d9 | 406 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) |
407 | { | |
408 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
409 | return Standard_False; | |
410 | } | |
411 | ||
412 | if (!glXMakeCurrent ((Display* )myDisplay, (GLXDrawable )myWindow, (GLXContext )myGContext)) | |
2bd4c032 | 413 | { |
414 | // if there is no current context it might be impossible to use glGetError() correctly | |
cbf18624 | 415 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
416 | "glXMakeCurrent() has failed!"); | |
fd4a6963 | 417 | myIsInitialized = Standard_False; |
2bd4c032 | 418 | return Standard_False; |
419 | } | |
420 | #endif | |
392ac980 | 421 | myShaderManager->SetContext (this); |
2bd4c032 | 422 | return Standard_True; |
423 | } | |
424 | ||
5e27df78 | 425 | // ======================================================================= |
426 | // function : SwapBuffers | |
427 | // purpose : | |
428 | // ======================================================================= | |
429 | void OpenGl_Context::SwapBuffers() | |
430 | { | |
da8bb41d | 431 | #if defined(HAVE_EGL) |
432 | if ((EGLSurface )myWindow != EGL_NO_SURFACE) | |
433 | { | |
434 | eglSwapBuffers ((EGLDisplay )myDisplay, (EGLSurface )myWindow); | |
435 | } | |
436 | #elif defined(_WIN32) | |
5e27df78 | 437 | if ((HDC )myWindowDC != NULL) |
438 | { | |
439 | ::SwapBuffers ((HDC )myWindowDC); | |
440 | glFlush(); | |
441 | } | |
442 | #else | |
443 | if ((Display* )myDisplay != NULL) | |
444 | { | |
445 | glXSwapBuffers ((Display* )myDisplay, (GLXDrawable )myWindow); | |
446 | } | |
447 | #endif | |
448 | } | |
449 | ||
4fe56619 | 450 | #endif // __APPLE__ |
451 | ||
5f8b738e | 452 | // ======================================================================= |
453 | // function : findProc | |
454 | // purpose : | |
455 | // ======================================================================= | |
456 | void* OpenGl_Context::findProc (const char* theFuncName) | |
457 | { | |
da8bb41d | 458 | #if defined(HAVE_EGL) |
459 | return (void* )eglGetProcAddress (theFuncName); | |
460 | #elif defined(_WIN32) | |
5f8b738e | 461 | return wglGetProcAddress (theFuncName); |
462 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
463 | return (myGlLibHandle != NULL) ? dlsym (myGlLibHandle, theFuncName) : NULL; | |
464 | #else | |
465 | return (void* )glXGetProcAddress ((const GLubyte* )theFuncName); | |
466 | #endif | |
2166f0fa SK |
467 | } |
468 | ||
469 | // ======================================================================= | |
470 | // function : CheckExtension | |
471 | // purpose : | |
472 | // ======================================================================= | |
2bd4c032 | 473 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtName) const |
2166f0fa | 474 | { |
5f8b738e | 475 | if (theExtName == NULL) |
476 | { | |
477 | std::cerr << "CheckExtension called with NULL string!\n"; | |
478 | return Standard_False; | |
479 | } | |
5f8b738e | 480 | |
481 | // available since OpenGL 3.0 | |
482 | // and the ONLY way to check extensions with OpenGL 3.1+ core profile | |
2bd4c032 | 483 | /**if (IsGlGreaterEqual (3, 0)) |
5f8b738e | 484 | { |
485 | GLint anExtNb = 0; | |
486 | glGetIntegerv (GL_NUM_EXTENSIONS, &anExtNb); | |
487 | for (GLint anIter = 0; anIter < anExtNb; ++anIter) | |
488 | { | |
489 | const char* anExtension = (const char* )core30->glGetStringi (GL_EXTENSIONS, (GLuint )anIter); | |
490 | if (anExtension[anExtNameLen] == '\0' && | |
491 | strncmp (anExtension, theExtName, anExtNameLen) == 0) | |
492 | { | |
493 | return Standard_True; | |
494 | } | |
495 | } | |
496 | return Standard_False; | |
497 | }*/ | |
498 | ||
499 | // use old way with huge string for all extensions | |
500 | const char* anExtString = (const char* )glGetString (GL_EXTENSIONS); | |
501 | if (anExtString == NULL) | |
502 | { | |
7e7c2f0b | 503 | Messenger()->Send ("TKOpenGL: glGetString (GL_EXTENSIONS) has returned NULL! No GL context?", Message_Warning); |
2166f0fa SK |
504 | return Standard_False; |
505 | } | |
58655684 | 506 | return CheckExtension (anExtString, theExtName); |
507 | } | |
508 | ||
509 | // ======================================================================= | |
510 | // function : CheckExtension | |
511 | // purpose : | |
512 | // ======================================================================= | |
513 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtString, | |
514 | const char* theExtName) | |
515 | { | |
516 | if (theExtString == NULL) | |
517 | { | |
518 | return Standard_False; | |
519 | } | |
2166f0fa SK |
520 | |
521 | // Search for theExtName in the extensions string. | |
522 | // Use of strstr() is not sufficient because extension names can be prefixes of other extension names. | |
58655684 | 523 | char* aPtrIter = (char* )theExtString; |
524 | const char* aPtrEnd = aPtrIter + strlen (theExtString); | |
525 | const size_t anExtNameLen = strlen (theExtName); | |
2166f0fa SK |
526 | while (aPtrIter < aPtrEnd) |
527 | { | |
6a7d83c4 | 528 | const size_t n = strcspn (aPtrIter, " "); |
5f8b738e | 529 | if ((n == anExtNameLen) && (strncmp (aPtrIter, theExtName, anExtNameLen) == 0)) |
530 | { | |
2166f0fa | 531 | return Standard_True; |
5f8b738e | 532 | } |
2166f0fa SK |
533 | aPtrIter += (n + 1); |
534 | } | |
535 | return Standard_False; | |
536 | } | |
537 | ||
4fe56619 | 538 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
539 | ||
2166f0fa SK |
540 | // ======================================================================= |
541 | // function : Init | |
542 | // purpose : | |
543 | // ======================================================================= | |
f0430952 | 544 | Standard_Boolean OpenGl_Context::Init() |
2166f0fa | 545 | { |
2bd4c032 | 546 | if (myIsInitialized) |
5f8b738e | 547 | { |
f0430952 | 548 | return Standard_True; |
5f8b738e | 549 | } |
2bd4c032 | 550 | |
da8bb41d | 551 | #if defined(HAVE_EGL) |
552 | myDisplay = (Aspect_Display )eglGetCurrentDisplay(); | |
553 | myGContext = (Aspect_RenderingContext )eglGetCurrentContext(); | |
554 | myWindow = (Aspect_Drawable )eglGetCurrentSurface(EGL_DRAW); | |
555 | #elif defined(_WIN32) | |
2bd4c032 | 556 | myWindowDC = (Aspect_Handle )wglGetCurrentDC(); |
557 | myGContext = (Aspect_RenderingContext )wglGetCurrentContext(); | |
558 | #else | |
559 | myDisplay = (Aspect_Display )glXGetCurrentDisplay(); | |
560 | myGContext = (Aspect_RenderingContext )glXGetCurrentContext(); | |
561 | myWindow = (Aspect_Drawable )glXGetCurrentDrawable(); | |
562 | #endif | |
f0430952 | 563 | if (myGContext == NULL) |
564 | { | |
565 | return Standard_False; | |
566 | } | |
2bd4c032 | 567 | |
568 | init(); | |
569 | myIsInitialized = Standard_True; | |
f0430952 | 570 | return Standard_True; |
2bd4c032 | 571 | } |
572 | ||
4fe56619 | 573 | #endif // __APPLE__ |
574 | ||
2bd4c032 | 575 | // ======================================================================= |
576 | // function : Init | |
577 | // purpose : | |
578 | // ======================================================================= | |
da8bb41d | 579 | #if defined(HAVE_EGL) |
580 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theEglSurface, | |
581 | const Aspect_Display theEglDisplay, | |
582 | const Aspect_RenderingContext theEglContext) | |
583 | #elif defined(_WIN32) | |
f0430952 | 584 | Standard_Boolean OpenGl_Context::Init (const Aspect_Handle theWindow, |
585 | const Aspect_Handle theWindowDC, | |
586 | const Aspect_RenderingContext theGContext) | |
4fe56619 | 587 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
588 | Standard_Boolean OpenGl_Context::Init (const void* theGContext) | |
2bd4c032 | 589 | #else |
f0430952 | 590 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theWindow, |
591 | const Aspect_Display theDisplay, | |
592 | const Aspect_RenderingContext theGContext) | |
2bd4c032 | 593 | #endif |
594 | { | |
595 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called only once!"); | |
da8bb41d | 596 | #if defined(HAVE_EGL) |
597 | myWindow = theEglSurface; | |
598 | myGContext = theEglContext; | |
599 | myDisplay = theEglDisplay; | |
600 | #elif defined(_WIN32) | |
2bd4c032 | 601 | myWindow = theWindow; |
602 | myGContext = theGContext; | |
2bd4c032 | 603 | myWindowDC = theWindowDC; |
4fe56619 | 604 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
605 | myGContext = (void* )theGContext; | |
2bd4c032 | 606 | #else |
4fe56619 | 607 | myWindow = theWindow; |
608 | myGContext = theGContext; | |
2bd4c032 | 609 | myDisplay = theDisplay; |
610 | #endif | |
86fa64d9 | 611 | if (myGContext == NULL || !MakeCurrent()) |
f0430952 | 612 | { |
613 | return Standard_False; | |
614 | } | |
2bd4c032 | 615 | |
616 | init(); | |
617 | myIsInitialized = Standard_True; | |
f0430952 | 618 | return Standard_True; |
5f8b738e | 619 | } |
620 | ||
621 | // ======================================================================= | |
622 | // function : ResetErrors | |
623 | // purpose : | |
624 | // ======================================================================= | |
625 | void OpenGl_Context::ResetErrors() | |
626 | { | |
627 | while (glGetError() != GL_NO_ERROR) | |
628 | { | |
629 | // | |
630 | } | |
631 | } | |
632 | ||
633 | // ======================================================================= | |
634 | // function : readGlVersion | |
635 | // purpose : | |
636 | // ======================================================================= | |
637 | void OpenGl_Context::readGlVersion() | |
638 | { | |
639 | // reset values | |
640 | myGlVerMajor = 0; | |
641 | myGlVerMinor = 0; | |
642 | ||
643 | // available since OpenGL 3.0 | |
86325709 | 644 | GLint aMajor = 0, aMinor = 0; |
5f8b738e | 645 | glGetIntegerv (GL_MAJOR_VERSION, &aMajor); |
646 | glGetIntegerv (GL_MINOR_VERSION, &aMinor); | |
30f0ad28 | 647 | // glGetError() sometimes does not report an error here even if |
86325709 | 648 | // GL does not know GL_MAJOR_VERSION and GL_MINOR_VERSION constants. |
649 | // This happens on some rendereres like e.g. Cygwin MESA. | |
650 | // Thus checking additionally if GL has put anything to | |
651 | // the output variables. | |
652 | if (glGetError() == GL_NO_ERROR && aMajor != 0 && aMinor != 0) | |
5f8b738e | 653 | { |
654 | myGlVerMajor = aMajor; | |
655 | myGlVerMinor = aMinor; | |
656 | return; | |
657 | } | |
658 | ResetErrors(); | |
659 | ||
660 | // Read version string. | |
661 | // Notice that only first two numbers splitted by point '2.1 XXXXX' are significant. | |
662 | // Following trash (after space) is vendor-specific. | |
663 | // New drivers also returns micro version of GL like '3.3.0' which has no meaning | |
664 | // and should be considered as vendor-specific too. | |
665 | const char* aVerStr = (const char* )glGetString (GL_VERSION); | |
666 | if (aVerStr == NULL || *aVerStr == '\0') | |
667 | { | |
668 | // invalid GL context | |
669 | return; | |
670 | } | |
671 | ||
672 | // parse string for major number | |
673 | char aMajorStr[32]; | |
674 | char aMinorStr[32]; | |
675 | size_t aMajIter = 0; | |
676 | while (aVerStr[aMajIter] >= '0' && aVerStr[aMajIter] <= '9') | |
677 | { | |
678 | ++aMajIter; | |
679 | } | |
680 | if (aMajIter == 0 || aMajIter >= sizeof(aMajorStr)) | |
681 | { | |
682 | return; | |
683 | } | |
684 | memcpy (aMajorStr, aVerStr, aMajIter); | |
685 | aMajorStr[aMajIter] = '\0'; | |
686 | ||
687 | // parse string for minor number | |
86325709 | 688 | aVerStr += aMajIter + 1; |
689 | size_t aMinIter = 0; | |
5f8b738e | 690 | while (aVerStr[aMinIter] >= '0' && aVerStr[aMinIter] <= '9') |
691 | { | |
692 | ++aMinIter; | |
693 | } | |
86325709 | 694 | if (aMinIter == 0 || aMinIter >= sizeof(aMinorStr)) |
5f8b738e | 695 | { |
696 | return; | |
697 | } | |
86325709 | 698 | memcpy (aMinorStr, aVerStr, aMinIter); |
699 | aMinorStr[aMinIter] = '\0'; | |
5f8b738e | 700 | |
701 | // read numbers | |
702 | myGlVerMajor = atoi (aMajorStr); | |
703 | myGlVerMinor = atoi (aMinorStr); | |
704 | ||
705 | if (myGlVerMajor <= 0) | |
706 | { | |
707 | myGlVerMajor = 0; | |
708 | myGlVerMinor = 0; | |
709 | } | |
710 | } | |
711 | ||
58655684 | 712 | static Standard_CString THE_DBGMSG_UNKNOWN = "UNKNOWN"; |
713 | static Standard_CString THE_DBGMSG_SOURCES[] = | |
714 | { | |
cbf18624 | 715 | ".OpenGL", // GL_DEBUG_SOURCE_API_ARB |
716 | ".WinSystem", // GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB | |
717 | ".GLSL", // GL_DEBUG_SOURCE_SHADER_COMPILER_ARB | |
718 | ".3rdParty", // GL_DEBUG_SOURCE_THIRD_PARTY_ARB | |
719 | "", // GL_DEBUG_SOURCE_APPLICATION_ARB | |
720 | ".Other" // GL_DEBUG_SOURCE_OTHER_ARB | |
58655684 | 721 | }; |
722 | ||
723 | static Standard_CString THE_DBGMSG_TYPES[] = | |
724 | { | |
cbf18624 | 725 | "Error", // GL_DEBUG_TYPE_ERROR_ARB |
726 | "Deprecated", // GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB | |
727 | "Undef. behavior", // GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB | |
728 | "Portability", // GL_DEBUG_TYPE_PORTABILITY_ARB | |
729 | "Performance", // GL_DEBUG_TYPE_PERFORMANCE_ARB | |
730 | "Other" // GL_DEBUG_TYPE_OTHER_ARB | |
58655684 | 731 | }; |
732 | ||
733 | static Standard_CString THE_DBGMSG_SEV_HIGH = "High"; // GL_DEBUG_SEVERITY_HIGH_ARB | |
734 | static Standard_CString THE_DBGMSG_SEV_MEDIUM = "Medium"; // GL_DEBUG_SEVERITY_MEDIUM_ARB | |
735 | static Standard_CString THE_DBGMSG_SEV_LOW = "Low"; // GL_DEBUG_SEVERITY_LOW_ARB | |
736 | ||
cbf18624 | 737 | //! Callback for GL_ARB_debug_output extension |
58655684 | 738 | static void APIENTRY debugCallbackWrap(unsigned int theSource, |
739 | unsigned int theType, | |
740 | unsigned int theId, | |
741 | unsigned int theSeverity, | |
742 | int /*theLength*/, | |
743 | const char* theMessage, | |
9293178b | 744 | const void* theUserParam) |
cbf18624 | 745 | { |
746 | OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
747 | aCtx->PushMessage (theSource, theType, theId, theSeverity, theMessage); | |
748 | } | |
749 | ||
750 | // ======================================================================= | |
751 | // function : PushMessage | |
752 | // purpose : | |
753 | // ======================================================================= | |
754 | void OpenGl_Context::PushMessage (const unsigned int theSource, | |
755 | const unsigned int theType, | |
756 | const unsigned int theId, | |
757 | const unsigned int theSeverity, | |
758 | const TCollection_ExtendedString& theMessage) | |
58655684 | 759 | { |
760 | //OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
761 | Standard_CString& aSrc = (theSource >= GL_DEBUG_SOURCE_API_ARB | |
01ca42b2 | 762 | && theSource <= GL_DEBUG_SOURCE_OTHER_ARB) |
58655684 | 763 | ? THE_DBGMSG_SOURCES[theSource - GL_DEBUG_SOURCE_API_ARB] |
764 | : THE_DBGMSG_UNKNOWN; | |
765 | Standard_CString& aType = (theType >= GL_DEBUG_TYPE_ERROR_ARB | |
01ca42b2 | 766 | && theType <= GL_DEBUG_TYPE_OTHER_ARB) |
58655684 | 767 | ? THE_DBGMSG_TYPES[theType - GL_DEBUG_TYPE_ERROR_ARB] |
768 | : THE_DBGMSG_UNKNOWN; | |
769 | Standard_CString& aSev = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB | |
770 | ? THE_DBGMSG_SEV_HIGH | |
771 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
772 | ? THE_DBGMSG_SEV_MEDIUM | |
773 | : THE_DBGMSG_SEV_LOW); | |
cbf18624 | 774 | Message_Gravity aGrav = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB |
775 | ? Message_Alarm | |
776 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
777 | ? Message_Warning | |
778 | : Message_Info); | |
779 | ||
780 | TCollection_ExtendedString aMsg; | |
781 | aMsg += "TKOpenGl"; aMsg += aSrc; | |
782 | aMsg += " | Type: "; aMsg += aType; | |
783 | aMsg += " | ID: "; aMsg += (Standard_Integer )theId; | |
784 | aMsg += " | Severity: "; aMsg += aSev; | |
785 | aMsg += " | Message:\n "; | |
786 | aMsg += theMessage; | |
787 | ||
7e7c2f0b | 788 | Messenger()->Send (aMsg, aGrav); |
58655684 | 789 | } |
790 | ||
5f8b738e | 791 | // ======================================================================= |
792 | // function : init | |
793 | // purpose : | |
794 | // ======================================================================= | |
795 | void OpenGl_Context::init() | |
796 | { | |
797 | // read version | |
798 | readGlVersion(); | |
799 | ||
01ca42b2 | 800 | core11 = (OpenGl_GlCore11* )(&(*myFuncs)); |
801 | core11fwd = (OpenGl_GlCore11Fwd* )(&(*myFuncs)); | |
802 | core15 = NULL; | |
803 | core15fwd = NULL; | |
804 | core20 = NULL; | |
805 | core20fwd = NULL; | |
806 | core32 = NULL; | |
807 | core32back = NULL; | |
808 | core41 = NULL; | |
809 | core41back = NULL; | |
810 | core42 = NULL; | |
811 | core42back = NULL; | |
812 | core43 = NULL; | |
813 | core43back = NULL; | |
814 | core44 = NULL; | |
815 | core44back = NULL; | |
816 | arbTBO = NULL; | |
817 | arbIns = NULL; | |
818 | arbDbg = NULL; | |
819 | arbFBO = NULL; | |
820 | extGS = NULL; | |
821 | ||
bf75be98 | 822 | arbNPTW = CheckExtension ("GL_ARB_texture_non_power_of_two"); |
823 | extBgra = CheckExtension ("GL_EXT_bgra"); | |
824 | extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic"); | |
b859a34d | 825 | extPDS = CheckExtension ("GL_EXT_packed_depth_stencil"); |
bf75be98 | 826 | atiMem = CheckExtension ("GL_ATI_meminfo"); |
827 | nvxMem = CheckExtension ("GL_NVX_gpu_memory_info"); | |
828 | ||
4269bd1b | 829 | // get number of maximum clipping planes |
830 | glGetIntegerv (GL_MAX_CLIP_PLANES, &myMaxClipPlanes); | |
bf75be98 | 831 | glGetIntegerv (GL_MAX_TEXTURE_SIZE, &myMaxTexDim); |
b5ac8292 | 832 | |
833 | GLint aStereo; | |
834 | glGetIntegerv (GL_STEREO, &aStereo); | |
835 | myIsStereoBuffers = aStereo == 1; | |
836 | ||
bf75be98 | 837 | if (extAnis) |
838 | { | |
839 | glGetIntegerv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &myAnisoMax); | |
840 | } | |
f0430952 | 841 | |
4269bd1b | 842 | myClippingState.Init (myMaxClipPlanes); |
843 | ||
01ca42b2 | 844 | bool has12 = false; |
845 | bool has13 = false; | |
846 | bool has14 = false; | |
847 | bool has15 = false; | |
848 | bool has20 = false; | |
849 | bool has21 = false; | |
850 | bool has30 = false; | |
851 | bool has31 = false; | |
852 | bool has32 = false; | |
853 | bool has33 = false; | |
854 | bool has40 = false; | |
855 | bool has41 = false; | |
856 | bool has42 = false; | |
857 | bool has43 = false; | |
858 | bool has44 = false; | |
859 | ||
860 | //! Make record shorter to retrieve function pointer using variable with same name | |
861 | #define FindProcShort(theFunc) FindProc(#theFunc, myFuncs->theFunc) | |
862 | ||
863 | // retrieve platform-dependent extensions | |
da8bb41d | 864 | #if defined(_WIN32) && !defined(HAVE_EGL) |
01ca42b2 | 865 | if (FindProcShort (wglGetExtensionsStringARB)) |
866 | { | |
867 | const char* aWglExts = myFuncs->wglGetExtensionsStringARB (wglGetCurrentDC()); | |
868 | if (CheckExtension (aWglExts, "WGL_EXT_swap_control")) | |
869 | { | |
870 | FindProcShort (wglSwapIntervalEXT); | |
871 | } | |
872 | if (CheckExtension (aWglExts, "WGL_ARB_pixel_format")) | |
873 | { | |
874 | FindProcShort (wglChoosePixelFormatARB); | |
875 | } | |
876 | if (CheckExtension (aWglExts, "WGL_ARB_create_context_profile")) | |
877 | { | |
878 | FindProcShort (wglCreateContextAttribsARB); | |
879 | } | |
880 | if (CheckExtension (aWglExts, "WGL_NV_DX_interop")) | |
881 | { | |
882 | FindProcShort (wglDXSetResourceShareHandleNV); | |
883 | FindProcShort (wglDXOpenDeviceNV); | |
884 | FindProcShort (wglDXCloseDeviceNV); | |
885 | FindProcShort (wglDXRegisterObjectNV); | |
886 | FindProcShort (wglDXUnregisterObjectNV); | |
887 | FindProcShort (wglDXObjectAccessNV); | |
888 | FindProcShort (wglDXLockObjectsNV); | |
889 | FindProcShort (wglDXUnlockObjectsNV); | |
890 | } | |
891 | } | |
892 | #endif | |
893 | ||
58655684 | 894 | // initialize debug context extension |
895 | if (CheckExtension ("GL_ARB_debug_output")) | |
896 | { | |
01ca42b2 | 897 | arbDbg = NULL; |
898 | if (FindProcShort (glDebugMessageControlARB) | |
899 | && FindProcShort (glDebugMessageInsertARB) | |
900 | && FindProcShort (glDebugMessageCallbackARB) | |
901 | && FindProcShort (glGetDebugMessageLogARB)) | |
58655684 | 902 | { |
01ca42b2 | 903 | arbDbg = (OpenGl_ArbDbg* )(&(*myFuncs)); |
58655684 | 904 | } |
905 | if (arbDbg != NULL | |
906 | && caps->contextDebug) | |
907 | { | |
908 | // setup default callback | |
909 | arbDbg->glDebugMessageCallbackARB (debugCallbackWrap, this); | |
fcdbe201 | 910 | #ifdef DEB |
58655684 | 911 | glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB); |
fcdbe201 | 912 | #endif |
58655684 | 913 | } |
914 | } | |
915 | ||
01ca42b2 | 916 | // load OpenGL 1.2 new functions |
917 | has12 = IsGlGreaterEqual (1, 2) | |
918 | && FindProcShort (glBlendColor) | |
919 | && FindProcShort (glBlendEquation) | |
920 | && FindProcShort (glDrawRangeElements) | |
921 | && FindProcShort (glTexImage3D) | |
922 | && FindProcShort (glTexSubImage3D) | |
923 | && FindProcShort (glCopyTexSubImage3D); | |
924 | ||
925 | // load OpenGL 1.3 new functions | |
926 | has13 = IsGlGreaterEqual (1, 3) | |
927 | && FindProcShort (glActiveTexture) | |
928 | && FindProcShort (glSampleCoverage) | |
929 | && FindProcShort (glCompressedTexImage3D) | |
930 | && FindProcShort (glCompressedTexImage2D) | |
931 | && FindProcShort (glCompressedTexImage1D) | |
932 | && FindProcShort (glCompressedTexSubImage3D) | |
933 | && FindProcShort (glCompressedTexSubImage2D) | |
934 | && FindProcShort (glCompressedTexSubImage1D) | |
935 | && FindProcShort (glGetCompressedTexImage) | |
936 | && FindProcShort (glClientActiveTexture) | |
937 | && FindProcShort (glMultiTexCoord1d) | |
938 | && FindProcShort (glMultiTexCoord1dv) | |
939 | && FindProcShort (glMultiTexCoord1f) | |
940 | && FindProcShort (glMultiTexCoord1fv) | |
941 | && FindProcShort (glMultiTexCoord1i) | |
942 | && FindProcShort (glMultiTexCoord1iv) | |
943 | && FindProcShort (glMultiTexCoord1s) | |
944 | && FindProcShort (glMultiTexCoord1sv) | |
945 | && FindProcShort (glMultiTexCoord2d) | |
946 | && FindProcShort (glMultiTexCoord2dv) | |
947 | && FindProcShort (glMultiTexCoord2f) | |
948 | && FindProcShort (glMultiTexCoord2fv) | |
949 | && FindProcShort (glMultiTexCoord2i) | |
950 | && FindProcShort (glMultiTexCoord2iv) | |
951 | && FindProcShort (glMultiTexCoord2s) | |
952 | && FindProcShort (glMultiTexCoord2sv) | |
953 | && FindProcShort (glMultiTexCoord3d) | |
954 | && FindProcShort (glMultiTexCoord3dv) | |
955 | && FindProcShort (glMultiTexCoord3f) | |
956 | && FindProcShort (glMultiTexCoord3fv) | |
957 | && FindProcShort (glMultiTexCoord3i) | |
958 | && FindProcShort (glMultiTexCoord3iv) | |
959 | && FindProcShort (glMultiTexCoord3s) | |
960 | && FindProcShort (glMultiTexCoord3sv) | |
961 | && FindProcShort (glMultiTexCoord4d) | |
962 | && FindProcShort (glMultiTexCoord4dv) | |
963 | && FindProcShort (glMultiTexCoord4f) | |
964 | && FindProcShort (glMultiTexCoord4fv) | |
965 | && FindProcShort (glMultiTexCoord4i) | |
966 | && FindProcShort (glMultiTexCoord4iv) | |
967 | && FindProcShort (glMultiTexCoord4s) | |
968 | && FindProcShort (glMultiTexCoord4sv) | |
969 | && FindProcShort (glLoadTransposeMatrixf) | |
970 | && FindProcShort (glLoadTransposeMatrixd) | |
971 | && FindProcShort (glMultTransposeMatrixf) | |
972 | && FindProcShort (glMultTransposeMatrixd); | |
973 | ||
974 | // load OpenGL 1.4 new functions | |
975 | has14 = IsGlGreaterEqual (1, 4) | |
976 | && FindProcShort (glBlendFuncSeparate) | |
977 | && FindProcShort (glMultiDrawArrays) | |
978 | && FindProcShort (glMultiDrawElements) | |
979 | && FindProcShort (glPointParameterf) | |
980 | && FindProcShort (glPointParameterfv) | |
981 | && FindProcShort (glPointParameteri) | |
982 | && FindProcShort (glPointParameteriv); | |
983 | ||
984 | // load OpenGL 1.5 new functions | |
985 | has15 = IsGlGreaterEqual (1, 5) | |
986 | && FindProcShort (glGenQueries) | |
987 | && FindProcShort (glDeleteQueries) | |
988 | && FindProcShort (glIsQuery) | |
989 | && FindProcShort (glBeginQuery) | |
990 | && FindProcShort (glEndQuery) | |
991 | && FindProcShort (glGetQueryiv) | |
992 | && FindProcShort (glGetQueryObjectiv) | |
993 | && FindProcShort (glGetQueryObjectuiv) | |
994 | && FindProcShort (glBindBuffer) | |
995 | && FindProcShort (glDeleteBuffers) | |
996 | && FindProcShort (glGenBuffers) | |
997 | && FindProcShort (glIsBuffer) | |
998 | && FindProcShort (glBufferData) | |
999 | && FindProcShort (glBufferSubData) | |
1000 | && FindProcShort (glGetBufferSubData) | |
1001 | && FindProcShort (glMapBuffer) | |
1002 | && FindProcShort (glUnmapBuffer) | |
1003 | && FindProcShort (glGetBufferParameteriv) | |
1004 | && FindProcShort (glGetBufferPointerv); | |
1005 | ||
1006 | // load OpenGL 2.0 new functions | |
1007 | has20 = IsGlGreaterEqual (2, 0) | |
1008 | && FindProcShort (glBlendEquationSeparate) | |
1009 | && FindProcShort (glDrawBuffers) | |
1010 | && FindProcShort (glStencilOpSeparate) | |
1011 | && FindProcShort (glStencilFuncSeparate) | |
1012 | && FindProcShort (glStencilMaskSeparate) | |
1013 | && FindProcShort (glAttachShader) | |
1014 | && FindProcShort (glBindAttribLocation) | |
1015 | && FindProcShort (glCompileShader) | |
1016 | && FindProcShort (glCreateProgram) | |
1017 | && FindProcShort (glCreateShader) | |
1018 | && FindProcShort (glDeleteProgram) | |
1019 | && FindProcShort (glDeleteShader) | |
1020 | && FindProcShort (glDetachShader) | |
1021 | && FindProcShort (glDisableVertexAttribArray) | |
1022 | && FindProcShort (glEnableVertexAttribArray) | |
1023 | && FindProcShort (glGetActiveAttrib) | |
1024 | && FindProcShort (glGetActiveUniform) | |
1025 | && FindProcShort (glGetAttachedShaders) | |
1026 | && FindProcShort (glGetAttribLocation) | |
1027 | && FindProcShort (glGetProgramiv) | |
1028 | && FindProcShort (glGetProgramInfoLog) | |
1029 | && FindProcShort (glGetShaderiv) | |
1030 | && FindProcShort (glGetShaderInfoLog) | |
1031 | && FindProcShort (glGetShaderSource) | |
1032 | && FindProcShort (glGetUniformLocation) | |
1033 | && FindProcShort (glGetUniformfv) | |
1034 | && FindProcShort (glGetUniformiv) | |
1035 | && FindProcShort (glGetVertexAttribdv) | |
1036 | && FindProcShort (glGetVertexAttribfv) | |
1037 | && FindProcShort (glGetVertexAttribiv) | |
1038 | && FindProcShort (glGetVertexAttribPointerv) | |
1039 | && FindProcShort (glIsProgram) | |
1040 | && FindProcShort (glIsShader) | |
1041 | && FindProcShort (glLinkProgram) | |
1042 | && FindProcShort (glShaderSource) | |
1043 | && FindProcShort (glUseProgram) | |
1044 | && FindProcShort (glUniform1f) | |
1045 | && FindProcShort (glUniform2f) | |
1046 | && FindProcShort (glUniform3f) | |
1047 | && FindProcShort (glUniform4f) | |
1048 | && FindProcShort (glUniform1i) | |
1049 | && FindProcShort (glUniform2i) | |
1050 | && FindProcShort (glUniform3i) | |
1051 | && FindProcShort (glUniform4i) | |
1052 | && FindProcShort (glUniform1fv) | |
1053 | && FindProcShort (glUniform2fv) | |
1054 | && FindProcShort (glUniform3fv) | |
1055 | && FindProcShort (glUniform4fv) | |
1056 | && FindProcShort (glUniform1iv) | |
1057 | && FindProcShort (glUniform2iv) | |
1058 | && FindProcShort (glUniform3iv) | |
1059 | && FindProcShort (glUniform4iv) | |
1060 | && FindProcShort (glUniformMatrix2fv) | |
1061 | && FindProcShort (glUniformMatrix3fv) | |
1062 | && FindProcShort (glUniformMatrix4fv) | |
1063 | && FindProcShort (glValidateProgram) | |
1064 | && FindProcShort (glVertexAttrib1d) | |
1065 | && FindProcShort (glVertexAttrib1dv) | |
1066 | && FindProcShort (glVertexAttrib1f) | |
1067 | && FindProcShort (glVertexAttrib1fv) | |
1068 | && FindProcShort (glVertexAttrib1s) | |
1069 | && FindProcShort (glVertexAttrib1sv) | |
1070 | && FindProcShort (glVertexAttrib2d) | |
1071 | && FindProcShort (glVertexAttrib2dv) | |
1072 | && FindProcShort (glVertexAttrib2f) | |
1073 | && FindProcShort (glVertexAttrib2fv) | |
1074 | && FindProcShort (glVertexAttrib2s) | |
1075 | && FindProcShort (glVertexAttrib2sv) | |
1076 | && FindProcShort (glVertexAttrib3d) | |
1077 | && FindProcShort (glVertexAttrib3dv) | |
1078 | && FindProcShort (glVertexAttrib3f) | |
1079 | && FindProcShort (glVertexAttrib3fv) | |
1080 | && FindProcShort (glVertexAttrib3s) | |
1081 | && FindProcShort (glVertexAttrib3sv) | |
1082 | && FindProcShort (glVertexAttrib4Nbv) | |
1083 | && FindProcShort (glVertexAttrib4Niv) | |
1084 | && FindProcShort (glVertexAttrib4Nsv) | |
1085 | && FindProcShort (glVertexAttrib4Nub) | |
1086 | && FindProcShort (glVertexAttrib4Nubv) | |
1087 | && FindProcShort (glVertexAttrib4Nuiv) | |
1088 | && FindProcShort (glVertexAttrib4Nusv) | |
1089 | && FindProcShort (glVertexAttrib4bv) | |
1090 | && FindProcShort (glVertexAttrib4d) | |
1091 | && FindProcShort (glVertexAttrib4dv) | |
1092 | && FindProcShort (glVertexAttrib4f) | |
1093 | && FindProcShort (glVertexAttrib4fv) | |
1094 | && FindProcShort (glVertexAttrib4iv) | |
1095 | && FindProcShort (glVertexAttrib4s) | |
1096 | && FindProcShort (glVertexAttrib4sv) | |
1097 | && FindProcShort (glVertexAttrib4ubv) | |
1098 | && FindProcShort (glVertexAttrib4uiv) | |
1099 | && FindProcShort (glVertexAttrib4usv) | |
1100 | && FindProcShort (glVertexAttribPointer); | |
1101 | ||
1102 | // load OpenGL 2.1 new functions | |
1103 | has21 = IsGlGreaterEqual (2, 1) | |
1104 | && FindProcShort (glUniformMatrix2x3fv) | |
1105 | && FindProcShort (glUniformMatrix3x2fv) | |
1106 | && FindProcShort (glUniformMatrix2x4fv) | |
1107 | && FindProcShort (glUniformMatrix4x2fv) | |
1108 | && FindProcShort (glUniformMatrix3x4fv) | |
1109 | && FindProcShort (glUniformMatrix4x3fv); | |
1110 | ||
1111 | // load GL_ARB_framebuffer_object (added to OpenGL 3.0 core) | |
1112 | const bool hasFBO = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_framebuffer_object")) | |
1113 | && FindProcShort (glIsRenderbuffer) | |
1114 | && FindProcShort (glBindRenderbuffer) | |
1115 | && FindProcShort (glDeleteRenderbuffers) | |
1116 | && FindProcShort (glGenRenderbuffers) | |
1117 | && FindProcShort (glRenderbufferStorage) | |
1118 | && FindProcShort (glGetRenderbufferParameteriv) | |
1119 | && FindProcShort (glIsFramebuffer) | |
1120 | && FindProcShort (glBindFramebuffer) | |
1121 | && FindProcShort (glDeleteFramebuffers) | |
1122 | && FindProcShort (glGenFramebuffers) | |
1123 | && FindProcShort (glCheckFramebufferStatus) | |
1124 | && FindProcShort (glFramebufferTexture1D) | |
1125 | && FindProcShort (glFramebufferTexture2D) | |
1126 | && FindProcShort (glFramebufferTexture3D) | |
1127 | && FindProcShort (glFramebufferRenderbuffer) | |
1128 | && FindProcShort (glGetFramebufferAttachmentParameteriv) | |
1129 | && FindProcShort (glGenerateMipmap) | |
1130 | && FindProcShort (glBlitFramebuffer) | |
1131 | && FindProcShort (glRenderbufferStorageMultisample) | |
1132 | && FindProcShort (glFramebufferTextureLayer); | |
1133 | ||
1134 | // load GL_ARB_vertex_array_object (added to OpenGL 3.0 core) | |
1135 | const bool hasVAO = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_vertex_array_object")) | |
1136 | && FindProcShort (glBindVertexArray) | |
1137 | && FindProcShort (glDeleteVertexArrays) | |
1138 | && FindProcShort (glGenVertexArrays) | |
1139 | && FindProcShort (glIsVertexArray); | |
1140 | ||
1141 | // load GL_ARB_map_buffer_range (added to OpenGL 3.0 core) | |
1142 | const bool hasMapBufferRange = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_map_buffer_range")) | |
1143 | && FindProcShort (glMapBufferRange) | |
1144 | && FindProcShort (glFlushMappedBufferRange); | |
1145 | ||
1146 | // load OpenGL 3.0 new functions | |
1147 | has30 = IsGlGreaterEqual (3, 0) | |
1148 | && hasFBO | |
1149 | && hasVAO | |
1150 | && hasMapBufferRange | |
1151 | && FindProcShort (glColorMaski) | |
1152 | && FindProcShort (glGetBooleani_v) | |
1153 | && FindProcShort (glGetIntegeri_v) | |
1154 | && FindProcShort (glEnablei) | |
1155 | && FindProcShort (glDisablei) | |
1156 | && FindProcShort (glIsEnabledi) | |
1157 | && FindProcShort (glBeginTransformFeedback) | |
1158 | && FindProcShort (glEndTransformFeedback) | |
1159 | && FindProcShort (glBindBufferRange) | |
1160 | && FindProcShort (glBindBufferBase) | |
1161 | && FindProcShort (glTransformFeedbackVaryings) | |
1162 | && FindProcShort (glGetTransformFeedbackVarying) | |
1163 | && FindProcShort (glClampColor) | |
1164 | && FindProcShort (glBeginConditionalRender) | |
1165 | && FindProcShort (glEndConditionalRender) | |
1166 | && FindProcShort (glVertexAttribIPointer) | |
1167 | && FindProcShort (glGetVertexAttribIiv) | |
1168 | && FindProcShort (glGetVertexAttribIuiv) | |
1169 | && FindProcShort (glVertexAttribI1i) | |
1170 | && FindProcShort (glVertexAttribI2i) | |
1171 | && FindProcShort (glVertexAttribI3i) | |
1172 | && FindProcShort (glVertexAttribI4i) | |
1173 | && FindProcShort (glVertexAttribI1ui) | |
1174 | && FindProcShort (glVertexAttribI2ui) | |
1175 | && FindProcShort (glVertexAttribI3ui) | |
1176 | && FindProcShort (glVertexAttribI4ui) | |
1177 | && FindProcShort (glVertexAttribI1iv) | |
1178 | && FindProcShort (glVertexAttribI2iv) | |
1179 | && FindProcShort (glVertexAttribI3iv) | |
1180 | && FindProcShort (glVertexAttribI4iv) | |
1181 | && FindProcShort (glVertexAttribI1uiv) | |
1182 | && FindProcShort (glVertexAttribI2uiv) | |
1183 | && FindProcShort (glVertexAttribI3uiv) | |
1184 | && FindProcShort (glVertexAttribI4uiv) | |
1185 | && FindProcShort (glVertexAttribI4bv) | |
1186 | && FindProcShort (glVertexAttribI4sv) | |
1187 | && FindProcShort (glVertexAttribI4ubv) | |
1188 | && FindProcShort (glVertexAttribI4usv) | |
1189 | && FindProcShort (glGetUniformuiv) | |
1190 | && FindProcShort (glBindFragDataLocation) | |
1191 | && FindProcShort (glGetFragDataLocation) | |
1192 | && FindProcShort (glUniform1ui) | |
1193 | && FindProcShort (glUniform2ui) | |
1194 | && FindProcShort (glUniform3ui) | |
1195 | && FindProcShort (glUniform4ui) | |
1196 | && FindProcShort (glUniform1uiv) | |
1197 | && FindProcShort (glUniform2uiv) | |
1198 | && FindProcShort (glUniform3uiv) | |
1199 | && FindProcShort (glUniform4uiv) | |
1200 | && FindProcShort (glTexParameterIiv) | |
1201 | && FindProcShort (glTexParameterIuiv) | |
1202 | && FindProcShort (glGetTexParameterIiv) | |
1203 | && FindProcShort (glGetTexParameterIuiv) | |
1204 | && FindProcShort (glClearBufferiv) | |
1205 | && FindProcShort (glClearBufferuiv) | |
1206 | && FindProcShort (glClearBufferfv) | |
1207 | && FindProcShort (glClearBufferfi) | |
1208 | && FindProcShort (glGetStringi); | |
1209 | ||
1210 | // load GL_ARB_uniform_buffer_object (added to OpenGL 3.1 core) | |
1211 | const bool hasUBO = (IsGlGreaterEqual (3, 1) || CheckExtension ("GL_ARB_uniform_buffer_object")) | |
1212 | && FindProcShort (glGetUniformIndices) | |
1213 | && FindProcShort (glGetActiveUniformsiv) | |
1214 | && FindProcShort (glGetActiveUniformName) | |
1215 | && FindProcShort (glGetUniformBlockIndex) | |
1216 | && FindProcShort (glGetActiveUniformBlockiv) | |
1217 | && FindProcShort (glGetActiveUniformBlockName) | |
1218 | && FindProcShort (glUniformBlockBinding); | |
1219 | ||
1220 | // load GL_ARB_copy_buffer (added to OpenGL 3.1 core) | |
1221 | const bool hasCopyBufSubData = (IsGlGreaterEqual (3, 1) || CheckExtension ("GL_ARB_copy_buffer")) | |
1222 | && FindProcShort (glCopyBufferSubData); | |
1223 | ||
1224 | if (has30) | |
2166f0fa | 1225 | { |
01ca42b2 | 1226 | // NPOT textures are required by OpenGL 2.0 specifications |
1227 | // but doesn't hardware accelerated by some ancient OpenGL 2.1 hardware (GeForce FX, RadeOn 9700 etc.) | |
1228 | arbNPTW = Standard_True; | |
1229 | arbTexRG = Standard_True; | |
2166f0fa SK |
1230 | } |
1231 | ||
01ca42b2 | 1232 | // load OpenGL 3.1 new functions |
1233 | has31 = IsGlGreaterEqual (3, 1) | |
1234 | && hasUBO | |
1235 | && hasCopyBufSubData | |
1236 | && FindProcShort (glDrawArraysInstanced) | |
1237 | && FindProcShort (glDrawElementsInstanced) | |
1238 | && FindProcShort (glTexBuffer) | |
1239 | && FindProcShort (glPrimitiveRestartIndex); | |
1240 | ||
1241 | // load GL_ARB_draw_elements_base_vertex (added to OpenGL 3.2 core) | |
1242 | const bool hasDrawElemsBaseVert = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_draw_elements_base_vertex")) | |
1243 | && FindProcShort (glDrawElementsBaseVertex) | |
1244 | && FindProcShort (glDrawRangeElementsBaseVertex) | |
1245 | && FindProcShort (glDrawElementsInstancedBaseVertex) | |
1246 | && FindProcShort (glMultiDrawElementsBaseVertex); | |
1247 | ||
1248 | // load GL_ARB_provoking_vertex (added to OpenGL 3.2 core) | |
1249 | const bool hasProvokingVert = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_provoking_vertex")) | |
1250 | && FindProcShort (glProvokingVertex); | |
1251 | ||
1252 | // load GL_ARB_sync (added to OpenGL 3.2 core) | |
1253 | const bool hasSync = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_sync")) | |
1254 | && FindProcShort (glFenceSync) | |
1255 | && FindProcShort (glIsSync) | |
1256 | && FindProcShort (glDeleteSync) | |
1257 | && FindProcShort (glClientWaitSync) | |
1258 | && FindProcShort (glWaitSync) | |
1259 | && FindProcShort (glGetInteger64v) | |
1260 | && FindProcShort (glGetSynciv); | |
1261 | ||
1262 | // load GL_ARB_texture_multisample (added to OpenGL 3.2 core) | |
1263 | const bool hasTextureMultisample = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_texture_multisample")) | |
1264 | && FindProcShort (glTexImage2DMultisample) | |
1265 | && FindProcShort (glTexImage3DMultisample) | |
1266 | && FindProcShort (glGetMultisamplefv) | |
1267 | && FindProcShort (glSampleMaski); | |
1268 | ||
1269 | // load OpenGL 3.2 new functions | |
1270 | has32 = IsGlGreaterEqual (3, 2) | |
1271 | && hasDrawElemsBaseVert | |
1272 | && hasProvokingVert | |
1273 | && hasSync | |
1274 | && hasTextureMultisample | |
1275 | && FindProcShort (glGetInteger64i_v) | |
1276 | && FindProcShort (glGetBufferParameteri64v) | |
1277 | && FindProcShort (glFramebufferTexture); | |
1278 | ||
1279 | // load GL_ARB_blend_func_extended (added to OpenGL 3.3 core) | |
1280 | const bool hasBlendFuncExtended = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_blend_func_extended")) | |
1281 | && FindProcShort (glBindFragDataLocationIndexed) | |
1282 | && FindProcShort (glGetFragDataIndex); | |
1283 | ||
1284 | // load GL_ARB_sampler_objects (added to OpenGL 3.3 core) | |
1285 | const bool hasSamplerObjects = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_sampler_objects")) | |
1286 | && FindProcShort (glGenSamplers) | |
1287 | && FindProcShort (glDeleteSamplers) | |
1288 | && FindProcShort (glIsSampler) | |
1289 | && FindProcShort (glBindSampler) | |
1290 | && FindProcShort (glSamplerParameteri) | |
1291 | && FindProcShort (glSamplerParameteriv) | |
1292 | && FindProcShort (glSamplerParameterf) | |
1293 | && FindProcShort (glSamplerParameterfv) | |
1294 | && FindProcShort (glSamplerParameterIiv) | |
1295 | && FindProcShort (glSamplerParameterIuiv) | |
1296 | && FindProcShort (glGetSamplerParameteriv) | |
1297 | && FindProcShort (glGetSamplerParameterIiv) | |
1298 | && FindProcShort (glGetSamplerParameterfv) | |
1299 | && FindProcShort (glGetSamplerParameterIuiv); | |
1300 | ||
1301 | // load GL_ARB_timer_query (added to OpenGL 3.3 core) | |
1302 | const bool hasTimerQuery = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_timer_query")) | |
1303 | && FindProcShort (glQueryCounter) | |
1304 | && FindProcShort (glGetQueryObjecti64v) | |
1305 | && FindProcShort (glGetQueryObjectui64v); | |
1306 | ||
1307 | // load GL_ARB_vertex_type_2_10_10_10_rev (added to OpenGL 3.3 core) | |
1308 | const bool hasVertType21010101rev = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_vertex_type_2_10_10_10_rev")) | |
1309 | && FindProcShort (glVertexP2ui) | |
1310 | && FindProcShort (glVertexP2uiv) | |
1311 | && FindProcShort (glVertexP3ui) | |
1312 | && FindProcShort (glVertexP3uiv) | |
1313 | && FindProcShort (glVertexP4ui) | |
1314 | && FindProcShort (glVertexP4uiv) | |
1315 | && FindProcShort (glTexCoordP1ui) | |
1316 | && FindProcShort (glTexCoordP1uiv) | |
1317 | && FindProcShort (glTexCoordP2ui) | |
1318 | && FindProcShort (glTexCoordP2uiv) | |
1319 | && FindProcShort (glTexCoordP3ui) | |
1320 | && FindProcShort (glTexCoordP3uiv) | |
1321 | && FindProcShort (glTexCoordP4ui) | |
1322 | && FindProcShort (glTexCoordP4uiv) | |
1323 | && FindProcShort (glMultiTexCoordP1ui) | |
1324 | && FindProcShort (glMultiTexCoordP1uiv) | |
1325 | && FindProcShort (glMultiTexCoordP2ui) | |
1326 | && FindProcShort (glMultiTexCoordP2uiv) | |
1327 | && FindProcShort (glMultiTexCoordP3ui) | |
1328 | && FindProcShort (glMultiTexCoordP3uiv) | |
1329 | && FindProcShort (glMultiTexCoordP4ui) | |
1330 | && FindProcShort (glMultiTexCoordP4uiv) | |
1331 | && FindProcShort (glNormalP3ui) | |
1332 | && FindProcShort (glNormalP3uiv) | |
1333 | && FindProcShort (glColorP3ui) | |
1334 | && FindProcShort (glColorP3uiv) | |
1335 | && FindProcShort (glColorP4ui) | |
1336 | && FindProcShort (glColorP4uiv) | |
1337 | && FindProcShort (glSecondaryColorP3ui) | |
1338 | && FindProcShort (glSecondaryColorP3uiv) | |
1339 | && FindProcShort (glVertexAttribP1ui) | |
1340 | && FindProcShort (glVertexAttribP1uiv) | |
1341 | && FindProcShort (glVertexAttribP2ui) | |
1342 | && FindProcShort (glVertexAttribP2uiv) | |
1343 | && FindProcShort (glVertexAttribP3ui) | |
1344 | && FindProcShort (glVertexAttribP3uiv) | |
1345 | && FindProcShort (glVertexAttribP4ui) | |
1346 | && FindProcShort (glVertexAttribP4uiv); | |
1347 | ||
1348 | // load OpenGL 3.3 extra functions | |
1349 | has33 = IsGlGreaterEqual (3, 3) | |
1350 | && hasBlendFuncExtended | |
1351 | && hasSamplerObjects | |
1352 | && hasTimerQuery | |
1353 | && hasVertType21010101rev | |
1354 | && FindProcShort (glVertexAttribDivisor); | |
1355 | ||
1356 | // load GL_ARB_draw_indirect (added to OpenGL 4.0 core) | |
1357 | const bool hasDrawIndirect = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_draw_indirect")) | |
1358 | && FindProcShort (glDrawArraysIndirect) | |
1359 | && FindProcShort (glDrawElementsIndirect); | |
1360 | ||
1361 | // load GL_ARB_gpu_shader_fp64 (added to OpenGL 4.0 core) | |
1362 | const bool hasShaderFP64 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_gpu_shader_fp64")) | |
1363 | && FindProcShort (glUniform1d) | |
1364 | && FindProcShort (glUniform2d) | |
1365 | && FindProcShort (glUniform3d) | |
1366 | && FindProcShort (glUniform4d) | |
1367 | && FindProcShort (glUniform1dv) | |
1368 | && FindProcShort (glUniform2dv) | |
1369 | && FindProcShort (glUniform3dv) | |
1370 | && FindProcShort (glUniform4dv) | |
1371 | && FindProcShort (glUniformMatrix2dv) | |
1372 | && FindProcShort (glUniformMatrix3dv) | |
1373 | && FindProcShort (glUniformMatrix4dv) | |
1374 | && FindProcShort (glUniformMatrix2x3dv) | |
1375 | && FindProcShort (glUniformMatrix2x4dv) | |
1376 | && FindProcShort (glUniformMatrix3x2dv) | |
1377 | && FindProcShort (glUniformMatrix3x4dv) | |
1378 | && FindProcShort (glUniformMatrix4x2dv) | |
1379 | && FindProcShort (glUniformMatrix4x3dv) | |
1380 | && FindProcShort (glGetUniformdv); | |
1381 | ||
1382 | // load GL_ARB_shader_subroutine (added to OpenGL 4.0 core) | |
1383 | const bool hasShaderSubroutine = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_shader_subroutine")) | |
1384 | && FindProcShort (glGetSubroutineUniformLocation) | |
1385 | && FindProcShort (glGetSubroutineIndex) | |
1386 | && FindProcShort (glGetActiveSubroutineUniformiv) | |
1387 | && FindProcShort (glGetActiveSubroutineUniformName) | |
1388 | && FindProcShort (glGetActiveSubroutineName) | |
1389 | && FindProcShort (glUniformSubroutinesuiv) | |
1390 | && FindProcShort (glGetUniformSubroutineuiv) | |
1391 | && FindProcShort (glGetProgramStageiv); | |
1392 | ||
1393 | // load GL_ARB_tessellation_shader (added to OpenGL 4.0 core) | |
1394 | const bool hasTessellationShader = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_tessellation_shader")) | |
1395 | && FindProcShort (glPatchParameteri) | |
1396 | && FindProcShort (glPatchParameterfv); | |
1397 | ||
1398 | // load GL_ARB_transform_feedback2 (added to OpenGL 4.0 core) | |
1399 | const bool hasTrsfFeedback2 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_transform_feedback2")) | |
1400 | && FindProcShort (glBindTransformFeedback) | |
1401 | && FindProcShort (glDeleteTransformFeedbacks) | |
1402 | && FindProcShort (glGenTransformFeedbacks) | |
1403 | && FindProcShort (glIsTransformFeedback) | |
1404 | && FindProcShort (glPauseTransformFeedback) | |
1405 | && FindProcShort (glResumeTransformFeedback) | |
1406 | && FindProcShort (glDrawTransformFeedback); | |
1407 | ||
1408 | // load GL_ARB_transform_feedback3 (added to OpenGL 4.0 core) | |
1409 | const bool hasTrsfFeedback3 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_transform_feedback3")) | |
1410 | && FindProcShort (glDrawTransformFeedbackStream) | |
1411 | && FindProcShort (glBeginQueryIndexed) | |
1412 | && FindProcShort (glEndQueryIndexed) | |
1413 | && FindProcShort (glGetQueryIndexediv); | |
1414 | ||
1415 | // load OpenGL 4.0 new functions | |
1416 | has40 = IsGlGreaterEqual (4, 0) | |
1417 | && hasDrawIndirect | |
1418 | && hasShaderFP64 | |
1419 | && hasShaderSubroutine | |
1420 | && hasTessellationShader | |
1421 | && hasTrsfFeedback2 | |
1422 | && hasTrsfFeedback3 | |
1423 | && FindProcShort (glMinSampleShading) | |
1424 | && FindProcShort (glBlendEquationi) | |
1425 | && FindProcShort (glBlendEquationSeparatei) | |
1426 | && FindProcShort (glBlendFunci) | |
1427 | && FindProcShort (glBlendFuncSeparatei); | |
1428 | ||
1429 | // load GL_ARB_ES2_compatibility (added to OpenGL 4.1 core) | |
1430 | const bool hasES2Compatibility = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_ES2_compatibility")) | |
1431 | && FindProcShort (glReleaseShaderCompiler) | |
1432 | && FindProcShort (glShaderBinary) | |
1433 | && FindProcShort (glGetShaderPrecisionFormat) | |
1434 | && FindProcShort (glDepthRangef) | |
1435 | && FindProcShort (glClearDepthf); | |
1436 | ||
1437 | // load GL_ARB_get_program_binary (added to OpenGL 4.1 core) | |
1438 | const bool hasGetProgramBinary = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_get_program_binary")) | |
1439 | && FindProcShort (glGetProgramBinary) | |
1440 | && FindProcShort (glProgramBinary) | |
1441 | && FindProcShort (glProgramParameteri); | |
1442 | ||
1443 | ||
1444 | // load GL_ARB_separate_shader_objects (added to OpenGL 4.1 core) | |
1445 | const bool hasSeparateShaderObjects = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_separate_shader_objects")) | |
1446 | && FindProcShort (glUseProgramStages) | |
1447 | && FindProcShort (glActiveShaderProgram) | |
1448 | && FindProcShort (glCreateShaderProgramv) | |
1449 | && FindProcShort (glBindProgramPipeline) | |
1450 | && FindProcShort (glDeleteProgramPipelines) | |
1451 | && FindProcShort (glGenProgramPipelines) | |
1452 | && FindProcShort (glIsProgramPipeline) | |
1453 | && FindProcShort (glGetProgramPipelineiv) | |
1454 | && FindProcShort (glProgramUniform1i) | |
1455 | && FindProcShort (glProgramUniform1iv) | |
1456 | && FindProcShort (glProgramUniform1f) | |
1457 | && FindProcShort (glProgramUniform1fv) | |
1458 | && FindProcShort (glProgramUniform1d) | |
1459 | && FindProcShort (glProgramUniform1dv) | |
1460 | && FindProcShort (glProgramUniform1ui) | |
1461 | && FindProcShort (glProgramUniform1uiv) | |
1462 | && FindProcShort (glProgramUniform2i) | |
1463 | && FindProcShort (glProgramUniform2iv) | |
1464 | && FindProcShort (glProgramUniform2f) | |
1465 | && FindProcShort (glProgramUniform2fv) | |
1466 | && FindProcShort (glProgramUniform2d) | |
1467 | && FindProcShort (glProgramUniform2dv) | |
1468 | && FindProcShort (glProgramUniform2ui) | |
1469 | && FindProcShort (glProgramUniform2uiv) | |
1470 | && FindProcShort (glProgramUniform3i) | |
1471 | && FindProcShort (glProgramUniform3iv) | |
1472 | && FindProcShort (glProgramUniform3f) | |
1473 | && FindProcShort (glProgramUniform3fv) | |
1474 | && FindProcShort (glProgramUniform3d) | |
1475 | && FindProcShort (glProgramUniform3dv) | |
1476 | && FindProcShort (glProgramUniform3ui) | |
1477 | && FindProcShort (glProgramUniform3uiv) | |
1478 | && FindProcShort (glProgramUniform4i) | |
1479 | && FindProcShort (glProgramUniform4iv) | |
1480 | && FindProcShort (glProgramUniform4f) | |
1481 | && FindProcShort (glProgramUniform4fv) | |
1482 | && FindProcShort (glProgramUniform4d) | |
1483 | && FindProcShort (glProgramUniform4dv) | |
1484 | && FindProcShort (glProgramUniform4ui) | |
1485 | && FindProcShort (glProgramUniform4uiv) | |
1486 | && FindProcShort (glProgramUniformMatrix2fv) | |
1487 | && FindProcShort (glProgramUniformMatrix3fv) | |
1488 | && FindProcShort (glProgramUniformMatrix4fv) | |
1489 | && FindProcShort (glProgramUniformMatrix2dv) | |
1490 | && FindProcShort (glProgramUniformMatrix3dv) | |
1491 | && FindProcShort (glProgramUniformMatrix4dv) | |
1492 | && FindProcShort (glProgramUniformMatrix2x3fv) | |
1493 | && FindProcShort (glProgramUniformMatrix3x2fv) | |
1494 | && FindProcShort (glProgramUniformMatrix2x4fv) | |
1495 | && FindProcShort (glProgramUniformMatrix4x2fv) | |
1496 | && FindProcShort (glProgramUniformMatrix3x4fv) | |
1497 | && FindProcShort (glProgramUniformMatrix4x3fv) | |
1498 | && FindProcShort (glProgramUniformMatrix2x3dv) | |
1499 | && FindProcShort (glProgramUniformMatrix3x2dv) | |
1500 | && FindProcShort (glProgramUniformMatrix2x4dv) | |
1501 | && FindProcShort (glProgramUniformMatrix4x2dv) | |
1502 | && FindProcShort (glProgramUniformMatrix3x4dv) | |
1503 | && FindProcShort (glProgramUniformMatrix4x3dv) | |
1504 | && FindProcShort (glValidateProgramPipeline) | |
1505 | && FindProcShort (glGetProgramPipelineInfoLog); | |
1506 | ||
1507 | // load GL_ARB_vertex_attrib_64bit (added to OpenGL 4.1 core) | |
1508 | const bool hasVertAttrib64bit = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_vertex_attrib_64bit")) | |
1509 | && FindProcShort (glVertexAttribL1d) | |
1510 | && FindProcShort (glVertexAttribL2d) | |
1511 | && FindProcShort (glVertexAttribL3d) | |
1512 | && FindProcShort (glVertexAttribL4d) | |
1513 | && FindProcShort (glVertexAttribL1dv) | |
1514 | && FindProcShort (glVertexAttribL2dv) | |
1515 | && FindProcShort (glVertexAttribL3dv) | |
1516 | && FindProcShort (glVertexAttribL4dv) | |
1517 | && FindProcShort (glVertexAttribLPointer) | |
1518 | && FindProcShort (glGetVertexAttribLdv); | |
1519 | ||
1520 | // load GL_ARB_viewport_array (added to OpenGL 4.1 core) | |
1521 | const bool hasViewportArray = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_viewport_array")) | |
1522 | && FindProcShort (glViewportArrayv) | |
1523 | && FindProcShort (glViewportIndexedf) | |
1524 | && FindProcShort (glViewportIndexedfv) | |
1525 | && FindProcShort (glScissorArrayv) | |
1526 | && FindProcShort (glScissorIndexed) | |
1527 | && FindProcShort (glScissorIndexedv) | |
1528 | && FindProcShort (glDepthRangeArrayv) | |
1529 | && FindProcShort (glDepthRangeIndexed) | |
1530 | && FindProcShort (glGetFloati_v) | |
1531 | && FindProcShort (glGetDoublei_v); | |
1532 | ||
1533 | has41 = IsGlGreaterEqual (4, 1) | |
1534 | && hasES2Compatibility | |
1535 | && hasGetProgramBinary | |
1536 | && hasSeparateShaderObjects | |
1537 | && hasVertAttrib64bit | |
1538 | && hasViewportArray; | |
1539 | ||
1540 | // load GL_ARB_base_instance (added to OpenGL 4.2 core) | |
1541 | const bool hasBaseInstance = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_base_instance")) | |
1542 | && FindProcShort (glDrawArraysInstancedBaseInstance) | |
1543 | && FindProcShort (glDrawElementsInstancedBaseInstance) | |
1544 | && FindProcShort (glDrawElementsInstancedBaseVertexBaseInstance); | |
1545 | ||
1546 | // load GL_ARB_transform_feedback_instanced (added to OpenGL 4.2 core) | |
1547 | const bool hasTrsfFeedbackInstanced = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_transform_feedback_instanced")) | |
1548 | && FindProcShort (glDrawTransformFeedbackInstanced) | |
1549 | && FindProcShort (glDrawTransformFeedbackStreamInstanced); | |
1550 | ||
1551 | // load GL_ARB_internalformat_query (added to OpenGL 4.2 core) | |
1552 | const bool hasInternalFormatQuery = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_internalformat_query")) | |
1553 | && FindProcShort (glGetInternalformativ); | |
1554 | ||
1555 | // load GL_ARB_shader_atomic_counters (added to OpenGL 4.2 core) | |
1556 | const bool hasShaderAtomicCounters = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_shader_atomic_counters")) | |
1557 | && FindProcShort (glGetActiveAtomicCounterBufferiv); | |
1558 | ||
1559 | // load GL_ARB_shader_image_load_store (added to OpenGL 4.2 core) | |
1560 | const bool hasShaderImgLoadStore = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_shader_image_load_store")) | |
1561 | && FindProcShort (glBindImageTexture) | |
1562 | && FindProcShort (glMemoryBarrier); | |
1563 | ||
1564 | // load GL_ARB_texture_storage (added to OpenGL 4.2 core) | |
1565 | const bool hasTextureStorage = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_texture_storage")) | |
1566 | && FindProcShort (glTexStorage1D) | |
1567 | && FindProcShort (glTexStorage2D) | |
1568 | && FindProcShort (glTexStorage3D) | |
1569 | && FindProcShort (glTextureStorage1DEXT) | |
1570 | && FindProcShort (glTextureStorage2DEXT) | |
1571 | && FindProcShort (glTextureStorage3DEXT); | |
1572 | ||
1573 | has42 = IsGlGreaterEqual (4, 2) | |
1574 | && hasBaseInstance | |
1575 | && hasTrsfFeedbackInstanced | |
1576 | && hasInternalFormatQuery | |
1577 | && hasShaderAtomicCounters | |
1578 | && hasShaderImgLoadStore | |
1579 | && hasTextureStorage; | |
1580 | ||
1581 | has43 = IsGlGreaterEqual (4, 3) | |
1582 | && FindProcShort (glClearBufferData) | |
1583 | && FindProcShort (glClearBufferSubData) | |
1584 | && FindProcShort (glDispatchCompute) | |
1585 | && FindProcShort (glDispatchComputeIndirect) | |
1586 | && FindProcShort (glCopyImageSubData) | |
1587 | && FindProcShort (glFramebufferParameteri) | |
1588 | && FindProcShort (glGetFramebufferParameteriv) | |
1589 | && FindProcShort (glGetInternalformati64v) | |
1590 | && FindProcShort (glInvalidateTexSubImage) | |
1591 | && FindProcShort (glInvalidateTexImage) | |
1592 | && FindProcShort (glInvalidateBufferSubData) | |
1593 | && FindProcShort (glInvalidateBufferData) | |
1594 | && FindProcShort (glInvalidateFramebuffer) | |
1595 | && FindProcShort (glInvalidateSubFramebuffer) | |
1596 | && FindProcShort (glMultiDrawArraysIndirect) | |
1597 | && FindProcShort (glMultiDrawElementsIndirect) | |
1598 | && FindProcShort (glGetProgramInterfaceiv) | |
1599 | && FindProcShort (glGetProgramResourceIndex) | |
1600 | && FindProcShort (glGetProgramResourceName) | |
1601 | && FindProcShort (glGetProgramResourceiv) | |
1602 | && FindProcShort (glGetProgramResourceLocation) | |
1603 | && FindProcShort (glGetProgramResourceLocationIndex) | |
1604 | && FindProcShort (glShaderStorageBlockBinding) | |
1605 | && FindProcShort (glTexBufferRange) | |
1606 | && FindProcShort (glTexStorage2DMultisample) | |
1607 | && FindProcShort (glTexStorage3DMultisample) | |
1608 | && FindProcShort (glTextureView) | |
1609 | && FindProcShort (glBindVertexBuffer) | |
1610 | && FindProcShort (glVertexAttribFormat) | |
1611 | && FindProcShort (glVertexAttribIFormat) | |
1612 | && FindProcShort (glVertexAttribLFormat) | |
1613 | && FindProcShort (glVertexAttribBinding) | |
1614 | && FindProcShort (glVertexBindingDivisor) | |
1615 | && FindProcShort (glDebugMessageControl) | |
1616 | && FindProcShort (glDebugMessageInsert) | |
1617 | && FindProcShort (glDebugMessageCallback) | |
1618 | && FindProcShort (glGetDebugMessageLog) | |
1619 | && FindProcShort (glPushDebugGroup) | |
1620 | && FindProcShort (glPopDebugGroup) | |
1621 | && FindProcShort (glObjectLabel) | |
1622 | && FindProcShort (glGetObjectLabel) | |
1623 | && FindProcShort (glObjectPtrLabel) | |
1624 | && FindProcShort (glGetObjectPtrLabel); | |
1625 | ||
1626 | // load GL_ARB_clear_texture (added to OpenGL 4.4 core) | |
1627 | bool arbTexClear = (IsGlGreaterEqual (4, 4) || CheckExtension ("GL_ARB_clear_texture")) | |
1628 | && FindProcShort (glClearTexImage) | |
1629 | && FindProcShort (glClearTexSubImage); | |
1630 | ||
1631 | has44 = IsGlGreaterEqual (4, 4) | |
1632 | && arbTexClear | |
1633 | && FindProcShort (glBufferStorage) | |
1634 | && FindProcShort (glBindBuffersBase) | |
1635 | && FindProcShort (glBindBuffersRange) | |
1636 | && FindProcShort (glBindTextures) | |
1637 | && FindProcShort (glBindSamplers) | |
1638 | && FindProcShort (glBindImageTextures) | |
1639 | && FindProcShort (glBindVertexBuffers); | |
1640 | ||
5e27df78 | 1641 | // initialize TBO extension (ARB) |
01ca42b2 | 1642 | if (!has31 |
1643 | && CheckExtension ("GL_ARB_texture_buffer_object") | |
1644 | && FindProc ("glTexBufferARB", myFuncs->glTexBuffer)) | |
5e27df78 | 1645 | { |
01ca42b2 | 1646 | arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs)); |
5e27df78 | 1647 | } |
1648 | ||
1649 | // initialize hardware instancing extension (ARB) | |
01ca42b2 | 1650 | if (!has31 |
1651 | && CheckExtension ("GL_ARB_draw_instanced") | |
1652 | && FindProc ("glDrawArraysInstancedARB", myFuncs->glDrawArraysInstanced) | |
1653 | && FindProc ("glDrawElementsInstancedARB", myFuncs->glDrawElementsInstanced)) | |
5e27df78 | 1654 | { |
01ca42b2 | 1655 | arbIns = (OpenGl_ArbIns* )(&(*myFuncs)); |
5e27df78 | 1656 | } |
1657 | ||
01ca42b2 | 1658 | // initialize FBO extension (ARB) |
1659 | if (hasFBO) | |
2166f0fa | 1660 | { |
01ca42b2 | 1661 | arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs)); |
1662 | extPDS = Standard_True; // extension for EXT, but part of ARB | |
2166f0fa | 1663 | } |
5f8b738e | 1664 | |
37eb4787 | 1665 | // initialize GS extension (EXT) |
01ca42b2 | 1666 | if (CheckExtension ("GL_EXT_geometry_shader4") |
1667 | && FindProcShort (glProgramParameteriEXT)) | |
37eb4787 | 1668 | { |
01ca42b2 | 1669 | extGS = (OpenGl_ExtGS* )(&(*myFuncs)); |
37eb4787 | 1670 | } |
1671 | ||
01ca42b2 | 1672 | if (!has12) |
86325709 | 1673 | { |
1674 | myGlVerMajor = 1; | |
1675 | myGlVerMinor = 1; | |
1676 | return; | |
5f8b738e | 1677 | } |
01ca42b2 | 1678 | else if (!has13) |
5f8b738e | 1679 | { |
01ca42b2 | 1680 | myGlVerMajor = 1; |
1681 | myGlVerMinor = 2; | |
1682 | return; | |
5f8b738e | 1683 | } |
01ca42b2 | 1684 | else if (!has14) |
5f8b738e | 1685 | { |
86325709 | 1686 | myGlVerMajor = 1; |
01ca42b2 | 1687 | myGlVerMinor = 3; |
86325709 | 1688 | return; |
5f8b738e | 1689 | } |
01ca42b2 | 1690 | else if (!has15) |
86325709 | 1691 | { |
01ca42b2 | 1692 | myGlVerMajor = 1; |
1693 | myGlVerMinor = 4; | |
1694 | return; | |
5f8b738e | 1695 | } |
01ca42b2 | 1696 | core15 = (OpenGl_GlCore15* )(&(*myFuncs)); |
1697 | core15fwd = (OpenGl_GlCore15Fwd* )(&(*myFuncs)); | |
1698 | ||
1699 | if (!has20) | |
86325709 | 1700 | { |
1701 | myGlVerMajor = 1; | |
01ca42b2 | 1702 | myGlVerMinor = 5; |
86325709 | 1703 | return; |
5f8b738e | 1704 | } |
01ca42b2 | 1705 | |
1706 | core20 = (OpenGl_GlCore20* )(&(*myFuncs)); | |
1707 | core20fwd = (OpenGl_GlCore20Fwd* )(&(*myFuncs)); | |
1708 | ||
1709 | if (!has21) | |
5f8b738e | 1710 | { |
01ca42b2 | 1711 | myGlVerMajor = 2; |
1712 | myGlVerMinor = 0; | |
1713 | return; | |
86325709 | 1714 | } |
01ca42b2 | 1715 | |
1716 | if (!has30) | |
86325709 | 1717 | { |
01ca42b2 | 1718 | myGlVerMajor = 2; |
1719 | myGlVerMinor = 1; | |
86325709 | 1720 | return; |
1721 | } | |
01ca42b2 | 1722 | |
1723 | if (!has31) | |
1724 | { | |
1725 | myGlVerMajor = 3; | |
1726 | myGlVerMinor = 0; | |
1727 | return; | |
1728 | } | |
1729 | arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs)); | |
1730 | arbIns = (OpenGl_ArbIns* )(&(*myFuncs)); | |
1731 | ||
1732 | if (!has32) | |
86325709 | 1733 | { |
01ca42b2 | 1734 | myGlVerMajor = 3; |
1735 | myGlVerMinor = 1; | |
1736 | return; | |
86325709 | 1737 | } |
01ca42b2 | 1738 | core32 = (OpenGl_GlCore32* )(&(*myFuncs)); |
1739 | core32back = (OpenGl_GlCore32Back* )(&(*myFuncs)); | |
1740 | ||
1741 | if (!has33) | |
86325709 | 1742 | { |
01ca42b2 | 1743 | myGlVerMajor = 3; |
1744 | myGlVerMinor = 2; | |
1745 | return; | |
86325709 | 1746 | } |
01ca42b2 | 1747 | |
1748 | if (!has40) | |
86325709 | 1749 | { |
01ca42b2 | 1750 | myGlVerMajor = 3; |
1751 | myGlVerMinor = 3; | |
1752 | return; | |
1753 | } | |
1754 | ||
1755 | if (!has41) | |
1756 | { | |
1757 | myGlVerMajor = 4; | |
1758 | myGlVerMinor = 0; | |
1759 | return; | |
1760 | } | |
1761 | core41 = (OpenGl_GlCore41* )(&(*myFuncs)); | |
1762 | core41back = (OpenGl_GlCore41Back* )(&(*myFuncs)); | |
1763 | ||
1764 | if(!has42) | |
1765 | { | |
1766 | myGlVerMajor = 4; | |
1767 | myGlVerMinor = 1; | |
1768 | return; | |
1769 | } | |
1770 | core42 = (OpenGl_GlCore42* )(&(*myFuncs)); | |
1771 | core42back = (OpenGl_GlCore42Back* )(&(*myFuncs)); | |
1772 | ||
1773 | if(!has43) | |
1774 | { | |
1775 | myGlVerMajor = 4; | |
1776 | myGlVerMinor = 2; | |
1777 | return; | |
1778 | } | |
1779 | core43 = (OpenGl_GlCore43* )(&(*myFuncs)); | |
1780 | core43back = (OpenGl_GlCore43Back* )(&(*myFuncs)); | |
1781 | ||
1782 | if (!has44) | |
1783 | { | |
1784 | myGlVerMajor = 4; | |
1785 | myGlVerMinor = 3; | |
1786 | return; | |
5f8b738e | 1787 | } |
01ca42b2 | 1788 | core44 = (OpenGl_GlCore44* )(&(*myFuncs)); |
1789 | core44back = (OpenGl_GlCore44Back* )(&(*myFuncs)); | |
2166f0fa | 1790 | } |
f0430952 | 1791 | |
1792 | // ======================================================================= | |
1793 | // function : MemoryInfo | |
1794 | // purpose : | |
1795 | // ======================================================================= | |
1796 | Standard_Size OpenGl_Context::AvailableMemory() const | |
1797 | { | |
1798 | if (atiMem) | |
1799 | { | |
1800 | // this is actually information for VBO pool | |
1801 | // however because pools are mostly shared | |
1802 | // it can be used for total GPU memory estimations | |
1803 | GLint aMemInfo[4]; | |
1804 | aMemInfo[0] = 0; | |
1805 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aMemInfo); | |
1806 | // returned value is in KiB, however this maybe changed in future | |
1807 | return Standard_Size(aMemInfo[0]) * 1024; | |
1808 | } | |
1809 | else if (nvxMem) | |
1810 | { | |
1811 | // current available dedicated video memory (in KiB), currently unused GPU memory | |
1812 | GLint aMemInfo = 0; | |
1813 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aMemInfo); | |
1814 | return Standard_Size(aMemInfo) * 1024; | |
1815 | } | |
1816 | return 0; | |
1817 | } | |
1818 | ||
1819 | // ======================================================================= | |
1820 | // function : MemoryInfo | |
1821 | // purpose : | |
1822 | // ======================================================================= | |
1823 | TCollection_AsciiString OpenGl_Context::MemoryInfo() const | |
1824 | { | |
1825 | TCollection_AsciiString anInfo; | |
1826 | if (atiMem) | |
1827 | { | |
1828 | GLint aValues[4]; | |
1829 | memset (aValues, 0, sizeof(aValues)); | |
1830 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aValues); | |
1831 | ||
1832 | // total memory free in the pool | |
1833 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValues[0] / 1024) + " MiB\n"; | |
1834 | ||
1835 | // largest available free block in the pool | |
1836 | anInfo += TCollection_AsciiString (" Largest free block: ") + (aValues[1] / 1024) + " MiB\n"; | |
1837 | if (aValues[2] != aValues[0]) | |
1838 | { | |
1839 | // total auxiliary memory free | |
1840 | anInfo += TCollection_AsciiString (" Free memory: ") + (aValues[2] / 1024) + " MiB\n"; | |
1841 | } | |
1842 | } | |
1843 | else if (nvxMem) | |
1844 | { | |
1845 | //current available dedicated video memory (in KiB), currently unused GPU memory | |
1846 | GLint aValue = 0; | |
1847 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aValue); | |
1848 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValue / 1024) + " MiB\n"; | |
1849 | ||
1850 | // dedicated video memory, total size (in KiB) of the GPU memory | |
1851 | GLint aDedicated = 0; | |
1852 | glGetIntegerv (GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &aDedicated); | |
1853 | anInfo += TCollection_AsciiString (" GPU memory: ") + (aDedicated / 1024) + " MiB\n"; | |
1854 | ||
1855 | // total available memory, total size (in KiB) of the memory available for allocations | |
1856 | glGetIntegerv (GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &aValue); | |
1857 | if (aValue != aDedicated) | |
1858 | { | |
1859 | // different only for special configurations | |
1860 | anInfo += TCollection_AsciiString (" Total memory: ") + (aValue / 1024) + " MiB\n"; | |
1861 | } | |
1862 | } | |
1863 | return anInfo; | |
1864 | } | |
5e27df78 | 1865 | |
1866 | ||
1867 | // ======================================================================= | |
1868 | // function : GetResource | |
1869 | // purpose : | |
1870 | // ======================================================================= | |
1871 | const Handle(OpenGl_Resource)& OpenGl_Context::GetResource (const TCollection_AsciiString& theKey) const | |
1872 | { | |
1873 | return mySharedResources->IsBound (theKey) ? mySharedResources->Find (theKey) : NULL_GL_RESOURCE; | |
1874 | } | |
1875 | ||
1876 | // ======================================================================= | |
1877 | // function : ShareResource | |
1878 | // purpose : | |
1879 | // ======================================================================= | |
1880 | Standard_Boolean OpenGl_Context::ShareResource (const TCollection_AsciiString& theKey, | |
1881 | const Handle(OpenGl_Resource)& theResource) | |
1882 | { | |
1883 | if (theKey.IsEmpty() || theResource.IsNull()) | |
1884 | { | |
1885 | return Standard_False; | |
1886 | } | |
1887 | return mySharedResources->Bind (theKey, theResource); | |
1888 | } | |
1889 | ||
1890 | // ======================================================================= | |
1891 | // function : ReleaseResource | |
1892 | // purpose : | |
1893 | // ======================================================================= | |
a174a3c5 | 1894 | void OpenGl_Context::ReleaseResource (const TCollection_AsciiString& theKey, |
1895 | const Standard_Boolean theToDelay) | |
5e27df78 | 1896 | { |
1897 | if (!mySharedResources->IsBound (theKey)) | |
1898 | { | |
1899 | return; | |
1900 | } | |
1901 | const Handle(OpenGl_Resource)& aRes = mySharedResources->Find (theKey); | |
1902 | if (aRes->GetRefCount() > 1) | |
1903 | { | |
1904 | return; | |
1905 | } | |
1906 | ||
a174a3c5 | 1907 | if (theToDelay) |
1908 | { | |
1909 | myDelayed->Bind (theKey, 1); | |
1910 | } | |
1911 | else | |
1912 | { | |
1913 | aRes->Release (this); | |
1914 | mySharedResources->UnBind (theKey); | |
1915 | } | |
5e27df78 | 1916 | } |
1917 | ||
1918 | // ======================================================================= | |
1919 | // function : DelayedRelease | |
1920 | // purpose : | |
1921 | // ======================================================================= | |
1922 | void OpenGl_Context::DelayedRelease (Handle(OpenGl_Resource)& theResource) | |
1923 | { | |
3125ebb6 | 1924 | myUnusedResources->Prepend (theResource); |
5e27df78 | 1925 | theResource.Nullify(); |
1926 | } | |
1927 | ||
1928 | // ======================================================================= | |
1929 | // function : ReleaseDelayed | |
1930 | // purpose : | |
1931 | // ======================================================================= | |
1932 | void OpenGl_Context::ReleaseDelayed() | |
1933 | { | |
a174a3c5 | 1934 | // release queued elements |
3125ebb6 | 1935 | while (!myUnusedResources->IsEmpty()) |
5e27df78 | 1936 | { |
3125ebb6 | 1937 | myUnusedResources->First()->Release (this); |
1938 | myUnusedResources->RemoveFirst(); | |
5e27df78 | 1939 | } |
a174a3c5 | 1940 | |
265d4508 | 1941 | // release delayed shared resources |
a174a3c5 | 1942 | NCollection_Vector<TCollection_AsciiString> aDeadList; |
1943 | for (NCollection_DataMap<TCollection_AsciiString, Standard_Integer>::Iterator anIter (*myDelayed); | |
1944 | anIter.More(); anIter.Next()) | |
1945 | { | |
1946 | if (++anIter.ChangeValue() <= 2) | |
1947 | { | |
1948 | continue; // postpone release one more frame to ensure noone use it periodically | |
1949 | } | |
1950 | ||
1951 | const TCollection_AsciiString& aKey = anIter.Key(); | |
1952 | if (!mySharedResources->IsBound (aKey)) | |
1953 | { | |
1954 | // mixed unshared strategy delayed/undelayed was used! | |
1955 | aDeadList.Append (aKey); | |
1956 | continue; | |
1957 | } | |
1958 | ||
1959 | Handle(OpenGl_Resource)& aRes = mySharedResources->ChangeFind (aKey); | |
1960 | if (aRes->GetRefCount() > 1) | |
1961 | { | |
1962 | // should be only 1 instance in mySharedResources | |
1963 | // if not - resource was reused again | |
1964 | aDeadList.Append (aKey); | |
1965 | continue; | |
1966 | } | |
1967 | ||
1968 | // release resource if no one requiested it more than 2 redraw calls | |
1969 | aRes->Release (this); | |
1970 | mySharedResources->UnBind (aKey); | |
1971 | aDeadList.Append (aKey); | |
1972 | } | |
1973 | ||
1974 | for (Standard_Integer anIter = 0; anIter < aDeadList.Length(); ++anIter) | |
1975 | { | |
1976 | myDelayed->UnBind (aDeadList.Value (anIter)); | |
1977 | } | |
5e27df78 | 1978 | } |
7d3e64ef | 1979 | |
1980 | // ======================================================================= | |
1981 | // function : BindProgram | |
1982 | // purpose : | |
1983 | // ======================================================================= | |
1984 | void OpenGl_Context::BindProgram (const Handle(OpenGl_ShaderProgram)& theProgram) | |
1985 | { | |
1986 | if (theProgram.IsNull() | |
1987 | || !theProgram->IsValid()) | |
1988 | { | |
1989 | if (!myActiveProgram.IsNull()) | |
1990 | { | |
1991 | core20fwd->glUseProgram (OpenGl_ShaderProgram::NO_PROGRAM); | |
1992 | myActiveProgram.Nullify(); | |
1993 | } | |
1994 | return; | |
1995 | } | |
1996 | ||
1997 | myActiveProgram = theProgram; | |
1998 | core20fwd->glUseProgram (theProgram->ProgramId()); | |
1999 | } |