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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> |
25ef750e | 27 | #include <OpenGl_ArbTexBindless.hxx> |
4e1523ef | 28 | #include <OpenGl_GlCore44.hxx> |
a2e4f780 | 29 | #include <OpenGl_FrameBuffer.hxx> |
25ef750e | 30 | #include <OpenGl_Sampler.hxx> |
30f0ad28 | 31 | #include <OpenGl_ShaderManager.hxx> |
5f8b738e | 32 | |
cbf18624 | 33 | #include <Message_Messenger.hxx> |
30f0ad28 | 34 | |
a174a3c5 | 35 | #include <NCollection_Vector.hxx> |
36 | ||
2bd4c032 | 37 | #include <Standard_ProgramError.hxx> |
38 | ||
da8bb41d | 39 | #if defined(HAVE_EGL) |
40 | #include <EGL/egl.h> | |
41 | #ifdef _MSC_VER | |
42 | #pragma comment(lib, "libEGL.lib") | |
43 | #endif | |
44 | #elif defined(_WIN32) | |
5f8b738e | 45 | // |
46 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
47 | #include <dlfcn.h> | |
f978241f | 48 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
49 | // | |
50 | #else | |
51 | #include <OpenGL/OpenGL.h> | |
52 | #endif | |
5f8b738e | 53 | #else |
54 | #include <GL/glx.h> // glXGetProcAddress() | |
55 | #endif | |
56 | ||
ac116c22 | 57 | #ifdef HAVE_GL2PS |
58 | #include <gl2ps.h> | |
59 | #ifdef _MSC_VER | |
60 | #pragma comment (lib, "gl2ps.lib") | |
61 | #endif | |
62 | #endif | |
63 | ||
2166f0fa | 64 | |
5e27df78 | 65 | namespace |
66 | { | |
67 | static const Handle(OpenGl_Resource) NULL_GL_RESOURCE; | |
01ca42b2 | 68 | } |
5e27df78 | 69 | |
2166f0fa SK |
70 | // ======================================================================= |
71 | // function : OpenGl_Context | |
72 | // purpose : | |
73 | // ======================================================================= | |
58655684 | 74 | OpenGl_Context::OpenGl_Context (const Handle(OpenGl_Caps)& theCaps) |
01ca42b2 | 75 | : core11 (NULL), |
76 | core11fwd (NULL), | |
77 | core15 (NULL), | |
78 | core15fwd (NULL), | |
79 | core20 (NULL), | |
80 | core20fwd (NULL), | |
81 | core32 (NULL), | |
82 | core32back (NULL), | |
25ef750e | 83 | core33 (NULL), |
84 | core33back (NULL), | |
01ca42b2 | 85 | core41 (NULL), |
86 | core41back (NULL), | |
87 | core42 (NULL), | |
88 | core42back (NULL), | |
89 | core43 (NULL), | |
90 | core43back (NULL), | |
91 | core44 (NULL), | |
92 | core44back (NULL), | |
58655684 | 93 | caps (!theCaps.IsNull() ? theCaps : new OpenGl_Caps()), |
ca3c13d1 | 94 | #if defined(GL_ES_VERSION_2_0) |
95 | hasHighp (Standard_False), | |
e99a2f7c | 96 | hasUintIndex(Standard_False), |
ca3c13d1 | 97 | hasTexRGBA8(Standard_False), |
98 | #else | |
99 | hasHighp (Standard_True), | |
e99a2f7c | 100 | hasUintIndex(Standard_True), |
ca3c13d1 | 101 | hasTexRGBA8(Standard_True), |
102 | #endif | |
25ef750e | 103 | arbNPTW (Standard_False), |
104 | arbTexRG (Standard_False), | |
105 | arbTexBindless (NULL), | |
5e27df78 | 106 | arbTBO (NULL), |
25ef750e | 107 | arbTboRGB32 (Standard_False), |
5e27df78 | 108 | arbIns (NULL), |
58655684 | 109 | arbDbg (NULL), |
01ca42b2 | 110 | arbFBO (NULL), |
b86bb3df | 111 | arbFBOBlit (NULL), |
37eb4787 | 112 | extGS (NULL), |
bf75be98 | 113 | extBgra(Standard_False), |
114 | extAnis(Standard_False), | |
30f0ad28 | 115 | extPDS (Standard_False), |
f0430952 | 116 | atiMem (Standard_False), |
117 | nvxMem (Standard_False), | |
5e27df78 | 118 | mySharedResources (new OpenGl_ResourcesMap()), |
a174a3c5 | 119 | myDelayed (new OpenGl_DelayReleaseMap()), |
3125ebb6 | 120 | myUnusedResources (new OpenGl_ResourcesStack()), |
4269bd1b | 121 | myClippingState (), |
5f8b738e | 122 | myGlLibHandle (NULL), |
01ca42b2 | 123 | myFuncs (new OpenGl_GlFunctions()), |
2f6cb3ac | 124 | myAnisoMax (1), |
ca3c13d1 | 125 | myTexClamp (GL_CLAMP_TO_EDGE), |
eafb234b | 126 | myMaxTexDim (1024), |
4269bd1b | 127 | myMaxClipPlanes (6), |
5f8b738e | 128 | myGlVerMajor (0), |
129 | myGlVerMinor (0), | |
b5ac8292 | 130 | myIsInitialized (Standard_False), |
131 | myIsStereoBuffers (Standard_False), | |
7d9e854b | 132 | myIsGlNormalizeEnabled (Standard_False), |
ca3c13d1 | 133 | #if !defined(GL_ES_VERSION_2_0) |
7d3e64ef | 134 | myRenderMode (GL_RENDER), |
ca3c13d1 | 135 | #else |
136 | myRenderMode (0), | |
137 | #endif | |
38a0206f | 138 | myReadBuffer (0), |
4e1523ef | 139 | myDrawBuffer (0), |
140 | myDefaultVao (0), | |
141 | myIsGlDebugCtx (Standard_False) | |
2166f0fa | 142 | { |
4e1523ef | 143 | // system-dependent fields |
144 | #if defined(HAVE_EGL) | |
145 | myDisplay = (Aspect_Display )EGL_NO_DISPLAY; | |
146 | myWindow = (Aspect_Drawable )EGL_NO_SURFACE; | |
458c2c58 | 147 | myGContext = (Aspect_RenderingContext )EGL_NO_CONTEXT; |
4e1523ef | 148 | #elif defined(_WIN32) |
149 | myWindow = NULL; | |
150 | myWindowDC = NULL; | |
151 | myGContext = NULL; | |
152 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
5f8b738e | 153 | // Vendors can not extend functionality on this system |
154 | // and developers are limited to OpenGL support provided by Mac OS X SDK. | |
155 | // We retrieve function pointers from system library | |
156 | // to generalize extensions support on all platforms. | |
157 | // In this way we also reach binary compatibility benefit between OS releases | |
158 | // if some newest functionality is optionally used. | |
159 | // Notice that GL version / extension availability checks are required | |
160 | // because function pointers may be available but not functionality itself | |
161 | // (depends on renderer). | |
a2e4f780 | 162 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
163 | myGContext = NULL; | |
164 | myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGLES.framework/OpenGLES", RTLD_LAZY); | |
165 | #else | |
4e1523ef | 166 | myGContext = NULL; |
5f8b738e | 167 | myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY); |
a2e4f780 | 168 | #endif |
4e1523ef | 169 | #else |
170 | myDisplay = NULL; | |
171 | myWindow = 0; | |
172 | myGContext = 0; | |
5f8b738e | 173 | #endif |
a2e4f780 | 174 | |
01ca42b2 | 175 | memset (myFuncs.operator->(), 0, sizeof(OpenGl_GlFunctions)); |
30f0ad28 | 176 | myShaderManager = new OpenGl_ShaderManager (this); |
2166f0fa SK |
177 | } |
178 | ||
179 | // ======================================================================= | |
180 | // function : ~OpenGl_Context | |
181 | // purpose : | |
182 | // ======================================================================= | |
183 | OpenGl_Context::~OpenGl_Context() | |
184 | { | |
5e27df78 | 185 | // release clean up queue |
186 | ReleaseDelayed(); | |
187 | ||
4e1523ef | 188 | #if !defined(GL_ES_VERSION_2_0) |
189 | // release default VAO | |
190 | if (myDefaultVao != 0 | |
191 | && IsValid() | |
192 | && core32 != NULL) | |
193 | { | |
194 | core32->glDeleteVertexArrays (1, &myDefaultVao); | |
195 | } | |
196 | myDefaultVao = 0; | |
197 | #endif | |
198 | ||
a2e4f780 | 199 | // release default FBO |
200 | if (!myDefaultFbo.IsNull()) | |
201 | { | |
202 | myDefaultFbo->Release (this); | |
203 | myDefaultFbo.Nullify(); | |
204 | } | |
205 | ||
5e27df78 | 206 | // release shared resources if any |
207 | if (((const Handle(Standard_Transient)& )mySharedResources)->GetRefCount() <= 1) | |
208 | { | |
392ac980 | 209 | myShaderManager.Nullify(); |
5e27df78 | 210 | for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources); |
211 | anIter.More(); anIter.Next()) | |
212 | { | |
213 | anIter.Value()->Release (this); | |
214 | } | |
e1c659da | 215 | |
216 | // release delayed resources added during deletion of shared resources | |
217 | while (!myUnusedResources->IsEmpty()) | |
218 | { | |
219 | myUnusedResources->First()->Release (this); | |
220 | myUnusedResources->RemoveFirst(); | |
221 | } | |
5e27df78 | 222 | } |
392ac980 | 223 | else |
224 | { | |
225 | myShaderManager->SetContext (NULL); | |
226 | } | |
5e27df78 | 227 | mySharedResources.Nullify(); |
a174a3c5 | 228 | myDelayed.Nullify(); |
5e27df78 | 229 | |
25ef750e | 230 | // release sampler object |
231 | if (!myTexSampler.IsNull()) | |
232 | { | |
233 | myTexSampler->Release (this); | |
234 | } | |
235 | ||
ca3c13d1 | 236 | #if !defined(GL_ES_VERSION_2_0) |
cbf18624 | 237 | if (arbDbg != NULL |
4e1523ef | 238 | && myIsGlDebugCtx |
f8c8ba7a | 239 | && IsValid()) |
cbf18624 | 240 | { |
241 | // reset callback | |
242 | void* aPtr = NULL; | |
243 | glGetPointerv (GL_DEBUG_CALLBACK_USER_PARAM_ARB, &aPtr); | |
244 | if (aPtr == this) | |
245 | { | |
246 | arbDbg->glDebugMessageCallbackARB (NULL, NULL); | |
247 | } | |
4e1523ef | 248 | myIsGlDebugCtx = Standard_False; |
cbf18624 | 249 | } |
ca3c13d1 | 250 | #endif |
5f8b738e | 251 | } |
252 | ||
05e2200b | 253 | // ======================================================================= |
254 | // function : forcedRelease | |
255 | // purpose : | |
256 | // ======================================================================= | |
257 | void OpenGl_Context::forcedRelease() | |
258 | { | |
259 | ReleaseDelayed(); | |
260 | for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources); | |
261 | anIter.More(); anIter.Next()) | |
262 | { | |
263 | anIter.Value()->Release (this); | |
264 | } | |
265 | mySharedResources->Clear(); | |
266 | myShaderManager->clear(); | |
267 | myShaderManager->SetContext (NULL); | |
e1c659da | 268 | |
269 | // release delayed resources added during deletion of shared resources | |
270 | while (!myUnusedResources->IsEmpty()) | |
271 | { | |
272 | myUnusedResources->First()->Release (this); | |
273 | myUnusedResources->RemoveFirst(); | |
274 | } | |
05e2200b | 275 | } |
276 | ||
bf75be98 | 277 | // ======================================================================= |
278 | // function : MaxDegreeOfAnisotropy | |
279 | // purpose : | |
280 | // ======================================================================= | |
281 | Standard_Integer OpenGl_Context::MaxDegreeOfAnisotropy() const | |
282 | { | |
283 | return myAnisoMax; | |
284 | } | |
285 | ||
286 | // ======================================================================= | |
287 | // function : MaxTextureSize | |
288 | // purpose : | |
289 | // ======================================================================= | |
290 | Standard_Integer OpenGl_Context::MaxTextureSize() const | |
291 | { | |
292 | return myMaxTexDim; | |
293 | } | |
294 | ||
4269bd1b | 295 | // ======================================================================= |
296 | // function : MaxClipPlanes | |
297 | // purpose : | |
298 | // ======================================================================= | |
299 | Standard_Integer OpenGl_Context::MaxClipPlanes() const | |
300 | { | |
301 | return myMaxClipPlanes; | |
302 | } | |
303 | ||
ca3c13d1 | 304 | #if !defined(GL_ES_VERSION_2_0) |
38a0206f | 305 | inline Standard_Integer stereoToMonoBuffer (const Standard_Integer theBuffer) |
306 | { | |
307 | switch (theBuffer) | |
b5ac8292 | 308 | { |
38a0206f | 309 | case GL_BACK_LEFT: |
310 | case GL_BACK_RIGHT: | |
311 | return GL_BACK; | |
312 | case GL_FRONT_LEFT: | |
313 | case GL_FRONT_RIGHT: | |
314 | return GL_FRONT; | |
315 | default: | |
316 | return theBuffer; | |
b5ac8292 | 317 | } |
318 | } | |
38a0206f | 319 | #endif |
b5ac8292 | 320 | |
321 | // ======================================================================= | |
38a0206f | 322 | // function : SetReadBuffer |
b5ac8292 | 323 | // purpose : |
324 | // ======================================================================= | |
38a0206f | 325 | void OpenGl_Context::SetReadBuffer (const Standard_Integer theReadBuffer) |
b5ac8292 | 326 | { |
ca3c13d1 | 327 | #if !defined(GL_ES_VERSION_2_0) |
38a0206f | 328 | myReadBuffer = !myIsStereoBuffers ? stereoToMonoBuffer (theReadBuffer) : theReadBuffer; |
329 | if (myReadBuffer < GL_COLOR_ATTACHMENT0 | |
330 | && arbFBO != NULL) | |
b5ac8292 | 331 | { |
38a0206f | 332 | arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
b5ac8292 | 333 | } |
38a0206f | 334 | ::glReadBuffer (myReadBuffer); |
335 | #else | |
336 | (void )theReadBuffer; | |
ca3c13d1 | 337 | #endif |
b5ac8292 | 338 | } |
339 | ||
340 | // ======================================================================= | |
38a0206f | 341 | // function : SetDrawBuffer |
b5ac8292 | 342 | // purpose : |
343 | // ======================================================================= | |
38a0206f | 344 | void OpenGl_Context::SetDrawBuffer (const Standard_Integer theDrawBuffer) |
b5ac8292 | 345 | { |
ca3c13d1 | 346 | #if !defined(GL_ES_VERSION_2_0) |
38a0206f | 347 | myDrawBuffer = !myIsStereoBuffers ? stereoToMonoBuffer (theDrawBuffer) : theDrawBuffer; |
348 | if (myDrawBuffer < GL_COLOR_ATTACHMENT0 | |
349 | && arbFBO != NULL) | |
b5ac8292 | 350 | { |
38a0206f | 351 | arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
b5ac8292 | 352 | } |
38a0206f | 353 | ::glDrawBuffer (myDrawBuffer); |
354 | #else | |
355 | (void )theDrawBuffer; | |
ca3c13d1 | 356 | #endif |
b5ac8292 | 357 | } |
358 | ||
359 | // ======================================================================= | |
360 | // function : FetchState | |
361 | // purpose : | |
362 | // ======================================================================= | |
363 | void OpenGl_Context::FetchState() | |
364 | { | |
ca3c13d1 | 365 | #if !defined(GL_ES_VERSION_2_0) |
b5ac8292 | 366 | // cache feedback mode state |
4e1523ef | 367 | if (core11 != NULL) |
368 | { | |
369 | ::glGetIntegerv (GL_RENDER_MODE, &myRenderMode); | |
370 | } | |
b5ac8292 | 371 | |
38a0206f | 372 | // cache buffers state |
373 | ::glGetIntegerv (GL_READ_BUFFER, &myReadBuffer); | |
374 | ::glGetIntegerv (GL_DRAW_BUFFER, &myDrawBuffer); | |
ca3c13d1 | 375 | #endif |
b5ac8292 | 376 | } |
377 | ||
5e27df78 | 378 | // ======================================================================= |
379 | // function : Share | |
380 | // purpose : | |
381 | // ======================================================================= | |
382 | void OpenGl_Context::Share (const Handle(OpenGl_Context)& theShareCtx) | |
383 | { | |
384 | if (!theShareCtx.IsNull()) | |
385 | { | |
386 | mySharedResources = theShareCtx->mySharedResources; | |
a174a3c5 | 387 | myDelayed = theShareCtx->myDelayed; |
3125ebb6 | 388 | myUnusedResources = theShareCtx->myUnusedResources; |
392ac980 | 389 | myShaderManager = theShareCtx->myShaderManager; |
5e27df78 | 390 | } |
391 | } | |
392 | ||
4fe56619 | 393 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
394 | ||
86fa64d9 | 395 | // ======================================================================= |
396 | // function : IsCurrent | |
397 | // purpose : | |
398 | // ======================================================================= | |
399 | Standard_Boolean OpenGl_Context::IsCurrent() const | |
400 | { | |
da8bb41d | 401 | #if defined(HAVE_EGL) |
402 | if ((EGLDisplay )myDisplay == EGL_NO_DISPLAY | |
403 | || (EGLSurface )myWindow == EGL_NO_SURFACE | |
404 | || (EGLContext )myGContext == EGL_NO_CONTEXT) | |
405 | { | |
406 | return Standard_False; | |
407 | } | |
408 | ||
409 | return (((EGLDisplay )myDisplay == eglGetCurrentDisplay()) | |
410 | && ((EGLContext )myGContext == eglGetCurrentContext()) | |
411 | && ((EGLSurface )myWindow == eglGetCurrentSurface (EGL_DRAW))); | |
412 | #elif defined(_WIN32) | |
86fa64d9 | 413 | if (myWindowDC == NULL || myGContext == NULL) |
414 | { | |
415 | return Standard_False; | |
416 | } | |
417 | return (( (HDC )myWindowDC == wglGetCurrentDC()) | |
418 | && ((HGLRC )myGContext == wglGetCurrentContext())); | |
419 | #else | |
420 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) | |
421 | { | |
422 | return Standard_False; | |
423 | } | |
424 | ||
425 | return ( ((Display* )myDisplay == glXGetCurrentDisplay()) | |
426 | && ((GLXContext )myGContext == glXGetCurrentContext()) | |
427 | && ((GLXDrawable )myWindow == glXGetCurrentDrawable())); | |
428 | #endif | |
429 | } | |
430 | ||
2bd4c032 | 431 | // ======================================================================= |
432 | // function : MakeCurrent | |
433 | // purpose : | |
434 | // ======================================================================= | |
435 | Standard_Boolean OpenGl_Context::MakeCurrent() | |
436 | { | |
da8bb41d | 437 | #if defined(HAVE_EGL) |
438 | if ((EGLDisplay )myDisplay == EGL_NO_DISPLAY | |
439 | || (EGLSurface )myWindow == EGL_NO_SURFACE | |
440 | || (EGLContext )myGContext == EGL_NO_CONTEXT) | |
441 | { | |
442 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
443 | return Standard_False; | |
444 | } | |
445 | ||
446 | if (eglMakeCurrent ((EGLDisplay )myDisplay, (EGLSurface )myWindow, (EGLSurface )myWindow, (EGLContext )myGContext) != EGL_TRUE) | |
447 | { | |
448 | // if there is no current context it might be impossible to use glGetError() correctly | |
449 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, | |
450 | "eglMakeCurrent() has failed!"); | |
451 | myIsInitialized = Standard_False; | |
452 | return Standard_False; | |
453 | } | |
454 | #elif defined(_WIN32) | |
86fa64d9 | 455 | if (myWindowDC == NULL || myGContext == NULL) |
2bd4c032 | 456 | { |
86fa64d9 | 457 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); |
458 | return Standard_False; | |
459 | } | |
460 | ||
461 | // technically it should be safe to activate already bound GL context | |
462 | // however some drivers (Intel etc.) may FAIL doing this for unknown reason | |
463 | if (IsCurrent()) | |
464 | { | |
392ac980 | 465 | myShaderManager->SetContext (this); |
86fa64d9 | 466 | return Standard_True; |
467 | } | |
468 | else if (wglMakeCurrent ((HDC )myWindowDC, (HGLRC )myGContext) != TRUE) | |
469 | { | |
470 | // notice that glGetError() couldn't be used here! | |
471 | wchar_t* aMsgBuff = NULL; | |
472 | DWORD anErrorCode = GetLastError(); | |
473 | FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, | |
474 | NULL, anErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (wchar_t* )&aMsgBuff, 0, NULL); | |
cbf18624 | 475 | TCollection_ExtendedString aMsg ("wglMakeCurrent() has failed. "); |
86fa64d9 | 476 | if (aMsgBuff != NULL) |
477 | { | |
cbf18624 | 478 | aMsg += (Standard_ExtString )aMsgBuff; |
86fa64d9 | 479 | LocalFree (aMsgBuff); |
480 | } | |
cbf18624 | 481 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, (unsigned int )anErrorCode, GL_DEBUG_SEVERITY_HIGH_ARB, aMsg); |
fd4a6963 | 482 | myIsInitialized = Standard_False; |
2bd4c032 | 483 | return Standard_False; |
484 | } | |
485 | #else | |
86fa64d9 | 486 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) |
487 | { | |
488 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
489 | return Standard_False; | |
490 | } | |
491 | ||
492 | if (!glXMakeCurrent ((Display* )myDisplay, (GLXDrawable )myWindow, (GLXContext )myGContext)) | |
2bd4c032 | 493 | { |
494 | // if there is no current context it might be impossible to use glGetError() correctly | |
cbf18624 | 495 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_ERROR_ARB, 0, GL_DEBUG_SEVERITY_HIGH_ARB, |
496 | "glXMakeCurrent() has failed!"); | |
fd4a6963 | 497 | myIsInitialized = Standard_False; |
2bd4c032 | 498 | return Standard_False; |
499 | } | |
500 | #endif | |
392ac980 | 501 | myShaderManager->SetContext (this); |
2bd4c032 | 502 | return Standard_True; |
503 | } | |
504 | ||
5e27df78 | 505 | // ======================================================================= |
506 | // function : SwapBuffers | |
507 | // purpose : | |
508 | // ======================================================================= | |
509 | void OpenGl_Context::SwapBuffers() | |
510 | { | |
da8bb41d | 511 | #if defined(HAVE_EGL) |
512 | if ((EGLSurface )myWindow != EGL_NO_SURFACE) | |
513 | { | |
514 | eglSwapBuffers ((EGLDisplay )myDisplay, (EGLSurface )myWindow); | |
515 | } | |
516 | #elif defined(_WIN32) | |
5e27df78 | 517 | if ((HDC )myWindowDC != NULL) |
518 | { | |
519 | ::SwapBuffers ((HDC )myWindowDC); | |
520 | glFlush(); | |
521 | } | |
522 | #else | |
523 | if ((Display* )myDisplay != NULL) | |
524 | { | |
525 | glXSwapBuffers ((Display* )myDisplay, (GLXDrawable )myWindow); | |
526 | } | |
527 | #endif | |
528 | } | |
529 | ||
4fe56619 | 530 | #endif // __APPLE__ |
531 | ||
f978241f | 532 | // ======================================================================= |
533 | // function : SetSwapInterval | |
534 | // purpose : | |
535 | // ======================================================================= | |
536 | Standard_Boolean OpenGl_Context::SetSwapInterval (const Standard_Integer theInterval) | |
537 | { | |
538 | #if defined(HAVE_EGL) | |
539 | if (::eglSwapInterval ((EGLDisplay )myDisplay, theInterval) == EGL_TRUE) | |
540 | { | |
541 | return Standard_True; | |
542 | } | |
543 | #elif defined(_WIN32) | |
544 | if (myFuncs->wglSwapIntervalEXT != NULL) | |
545 | { | |
546 | myFuncs->wglSwapIntervalEXT (theInterval); | |
547 | return Standard_True; | |
548 | } | |
549 | #elif defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE | |
550 | // | |
551 | #elif defined(__APPLE__) | |
552 | if (::CGLSetParameter (CGLGetCurrentContext(), kCGLCPSwapInterval, &theInterval) == kCGLNoError) | |
553 | { | |
554 | return Standard_True; | |
555 | } | |
556 | #else | |
557 | if (theInterval == -1 | |
558 | && myFuncs->glXSwapIntervalEXT != NULL) | |
559 | { | |
560 | typedef int (*glXSwapIntervalEXT_t_x)(Display* theDisplay, GLXDrawable theDrawable, int theInterval); | |
561 | glXSwapIntervalEXT_t_x aFuncPtr = (glXSwapIntervalEXT_t_x )myFuncs->glXSwapIntervalEXT; | |
562 | aFuncPtr ((Display* )myDisplay, (GLXDrawable )myWindow, theInterval); | |
563 | return Standard_True; | |
564 | } | |
565 | else if (myFuncs->glXSwapIntervalSGI != NULL) | |
566 | { | |
567 | myFuncs->glXSwapIntervalSGI (theInterval); | |
568 | return Standard_True; | |
569 | } | |
570 | #endif | |
571 | return Standard_False; | |
572 | } | |
573 | ||
5f8b738e | 574 | // ======================================================================= |
575 | // function : findProc | |
576 | // purpose : | |
577 | // ======================================================================= | |
578 | void* OpenGl_Context::findProc (const char* theFuncName) | |
579 | { | |
da8bb41d | 580 | #if defined(HAVE_EGL) |
581 | return (void* )eglGetProcAddress (theFuncName); | |
582 | #elif defined(_WIN32) | |
5f8b738e | 583 | return wglGetProcAddress (theFuncName); |
584 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
585 | return (myGlLibHandle != NULL) ? dlsym (myGlLibHandle, theFuncName) : NULL; | |
586 | #else | |
587 | return (void* )glXGetProcAddress ((const GLubyte* )theFuncName); | |
588 | #endif | |
2166f0fa SK |
589 | } |
590 | ||
591 | // ======================================================================= | |
592 | // function : CheckExtension | |
593 | // purpose : | |
594 | // ======================================================================= | |
2bd4c032 | 595 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtName) const |
2166f0fa | 596 | { |
5f8b738e | 597 | if (theExtName == NULL) |
598 | { | |
0797d9d3 | 599 | #ifdef OCCT_DEBUG |
5f8b738e | 600 | std::cerr << "CheckExtension called with NULL string!\n"; |
63c629aa | 601 | #endif |
5f8b738e | 602 | return Standard_False; |
603 | } | |
5f8b738e | 604 | |
4e1523ef | 605 | #if !defined(GL_ES_VERSION_2_0) |
5f8b738e | 606 | // available since OpenGL 3.0 |
607 | // and the ONLY way to check extensions with OpenGL 3.1+ core profile | |
4e1523ef | 608 | if (IsGlGreaterEqual (3, 0) |
609 | && myFuncs->glGetStringi != NULL) | |
5f8b738e | 610 | { |
611 | GLint anExtNb = 0; | |
4e1523ef | 612 | ::glGetIntegerv (GL_NUM_EXTENSIONS, &anExtNb); |
613 | const size_t anExtNameLen = strlen (theExtName); | |
5f8b738e | 614 | for (GLint anIter = 0; anIter < anExtNb; ++anIter) |
615 | { | |
4e1523ef | 616 | const char* anExtension = (const char* )myFuncs->glGetStringi (GL_EXTENSIONS, (GLuint )anIter); |
617 | const size_t aTestExtNameLen = strlen (anExtension); | |
618 | if (aTestExtNameLen == anExtNameLen | |
619 | && strncmp (anExtension, theExtName, anExtNameLen) == 0) | |
5f8b738e | 620 | { |
621 | return Standard_True; | |
622 | } | |
623 | } | |
624 | return Standard_False; | |
4e1523ef | 625 | } |
626 | #endif | |
5f8b738e | 627 | |
628 | // use old way with huge string for all extensions | |
629 | const char* anExtString = (const char* )glGetString (GL_EXTENSIONS); | |
630 | if (anExtString == NULL) | |
631 | { | |
7e7c2f0b | 632 | Messenger()->Send ("TKOpenGL: glGetString (GL_EXTENSIONS) has returned NULL! No GL context?", Message_Warning); |
2166f0fa SK |
633 | return Standard_False; |
634 | } | |
58655684 | 635 | return CheckExtension (anExtString, theExtName); |
636 | } | |
637 | ||
638 | // ======================================================================= | |
639 | // function : CheckExtension | |
640 | // purpose : | |
641 | // ======================================================================= | |
642 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtString, | |
643 | const char* theExtName) | |
644 | { | |
645 | if (theExtString == NULL) | |
646 | { | |
647 | return Standard_False; | |
648 | } | |
2166f0fa SK |
649 | |
650 | // Search for theExtName in the extensions string. | |
651 | // Use of strstr() is not sufficient because extension names can be prefixes of other extension names. | |
58655684 | 652 | char* aPtrIter = (char* )theExtString; |
653 | const char* aPtrEnd = aPtrIter + strlen (theExtString); | |
654 | const size_t anExtNameLen = strlen (theExtName); | |
2166f0fa SK |
655 | while (aPtrIter < aPtrEnd) |
656 | { | |
6a7d83c4 | 657 | const size_t n = strcspn (aPtrIter, " "); |
5f8b738e | 658 | if ((n == anExtNameLen) && (strncmp (aPtrIter, theExtName, anExtNameLen) == 0)) |
659 | { | |
2166f0fa | 660 | return Standard_True; |
5f8b738e | 661 | } |
2166f0fa SK |
662 | aPtrIter += (n + 1); |
663 | } | |
664 | return Standard_False; | |
665 | } | |
666 | ||
4fe56619 | 667 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
668 | ||
2166f0fa SK |
669 | // ======================================================================= |
670 | // function : Init | |
671 | // purpose : | |
672 | // ======================================================================= | |
4e1523ef | 673 | Standard_Boolean OpenGl_Context::Init (const Standard_Boolean theIsCoreProfile) |
2166f0fa | 674 | { |
2bd4c032 | 675 | if (myIsInitialized) |
5f8b738e | 676 | { |
f0430952 | 677 | return Standard_True; |
5f8b738e | 678 | } |
2bd4c032 | 679 | |
da8bb41d | 680 | #if defined(HAVE_EGL) |
681 | myDisplay = (Aspect_Display )eglGetCurrentDisplay(); | |
682 | myGContext = (Aspect_RenderingContext )eglGetCurrentContext(); | |
683 | myWindow = (Aspect_Drawable )eglGetCurrentSurface(EGL_DRAW); | |
684 | #elif defined(_WIN32) | |
2bd4c032 | 685 | myWindowDC = (Aspect_Handle )wglGetCurrentDC(); |
686 | myGContext = (Aspect_RenderingContext )wglGetCurrentContext(); | |
687 | #else | |
688 | myDisplay = (Aspect_Display )glXGetCurrentDisplay(); | |
689 | myGContext = (Aspect_RenderingContext )glXGetCurrentContext(); | |
690 | myWindow = (Aspect_Drawable )glXGetCurrentDrawable(); | |
691 | #endif | |
f0430952 | 692 | if (myGContext == NULL) |
693 | { | |
694 | return Standard_False; | |
695 | } | |
2bd4c032 | 696 | |
4e1523ef | 697 | init (theIsCoreProfile); |
2bd4c032 | 698 | myIsInitialized = Standard_True; |
f0430952 | 699 | return Standard_True; |
2bd4c032 | 700 | } |
701 | ||
4fe56619 | 702 | #endif // __APPLE__ |
703 | ||
2bd4c032 | 704 | // ======================================================================= |
705 | // function : Init | |
706 | // purpose : | |
707 | // ======================================================================= | |
da8bb41d | 708 | #if defined(HAVE_EGL) |
709 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theEglSurface, | |
710 | const Aspect_Display theEglDisplay, | |
4e1523ef | 711 | const Aspect_RenderingContext theEglContext, |
712 | const Standard_Boolean theIsCoreProfile) | |
da8bb41d | 713 | #elif defined(_WIN32) |
f0430952 | 714 | Standard_Boolean OpenGl_Context::Init (const Aspect_Handle theWindow, |
715 | const Aspect_Handle theWindowDC, | |
4e1523ef | 716 | const Aspect_RenderingContext theGContext, |
717 | const Standard_Boolean theIsCoreProfile) | |
4fe56619 | 718 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
a2e4f780 | 719 | |
720 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE | |
721 | Standard_Boolean OpenGl_Context::Init (EAGLContext* theGContext, | |
4e1523ef | 722 | const Standard_Boolean theIsCoreProfile) |
a2e4f780 | 723 | #else |
724 | Standard_Boolean OpenGl_Context::Init (NSOpenGLContext* theGContext, | |
725 | const Standard_Boolean theIsCoreProfile) | |
726 | #endif | |
727 | ||
2bd4c032 | 728 | #else |
f0430952 | 729 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theWindow, |
730 | const Aspect_Display theDisplay, | |
4e1523ef | 731 | const Aspect_RenderingContext theGContext, |
732 | const Standard_Boolean theIsCoreProfile) | |
2bd4c032 | 733 | #endif |
734 | { | |
735 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called only once!"); | |
da8bb41d | 736 | #if defined(HAVE_EGL) |
737 | myWindow = theEglSurface; | |
738 | myGContext = theEglContext; | |
739 | myDisplay = theEglDisplay; | |
740 | #elif defined(_WIN32) | |
2bd4c032 | 741 | myWindow = theWindow; |
742 | myGContext = theGContext; | |
2bd4c032 | 743 | myWindowDC = theWindowDC; |
4fe56619 | 744 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
a2e4f780 | 745 | myGContext = theGContext; |
2bd4c032 | 746 | #else |
4fe56619 | 747 | myWindow = theWindow; |
748 | myGContext = theGContext; | |
2bd4c032 | 749 | myDisplay = theDisplay; |
750 | #endif | |
86fa64d9 | 751 | if (myGContext == NULL || !MakeCurrent()) |
f0430952 | 752 | { |
753 | return Standard_False; | |
754 | } | |
2bd4c032 | 755 | |
4e1523ef | 756 | init (theIsCoreProfile); |
2bd4c032 | 757 | myIsInitialized = Standard_True; |
f0430952 | 758 | return Standard_True; |
5f8b738e | 759 | } |
760 | ||
761 | // ======================================================================= | |
762 | // function : ResetErrors | |
763 | // purpose : | |
764 | // ======================================================================= | |
765 | void OpenGl_Context::ResetErrors() | |
766 | { | |
767 | while (glGetError() != GL_NO_ERROR) | |
768 | { | |
769 | // | |
770 | } | |
771 | } | |
772 | ||
773 | // ======================================================================= | |
4e1523ef | 774 | // function : ReadGlVersion |
5f8b738e | 775 | // purpose : |
776 | // ======================================================================= | |
4e1523ef | 777 | void OpenGl_Context::ReadGlVersion (Standard_Integer& theGlVerMajor, |
778 | Standard_Integer& theGlVerMinor) | |
5f8b738e | 779 | { |
780 | // reset values | |
4e1523ef | 781 | theGlVerMajor = 0; |
782 | theGlVerMinor = 0; | |
5f8b738e | 783 | |
ca3c13d1 | 784 | #ifdef GL_MAJOR_VERSION |
785 | // available since OpenGL 3.0 and OpenGL 3.0 ES | |
86325709 | 786 | GLint aMajor = 0, aMinor = 0; |
5f8b738e | 787 | glGetIntegerv (GL_MAJOR_VERSION, &aMajor); |
788 | glGetIntegerv (GL_MINOR_VERSION, &aMinor); | |
30f0ad28 | 789 | // glGetError() sometimes does not report an error here even if |
86325709 | 790 | // GL does not know GL_MAJOR_VERSION and GL_MINOR_VERSION constants. |
ca3c13d1 | 791 | // This happens on some renderers like e.g. Cygwin MESA. |
86325709 | 792 | // Thus checking additionally if GL has put anything to |
793 | // the output variables. | |
4e1523ef | 794 | if (::glGetError() == GL_NO_ERROR && aMajor != 0 && aMinor != 0) |
5f8b738e | 795 | { |
4e1523ef | 796 | theGlVerMajor = aMajor; |
797 | theGlVerMinor = aMinor; | |
5f8b738e | 798 | return; |
799 | } | |
4e1523ef | 800 | for (GLenum anErr = ::glGetError(), aPrevErr = GL_NO_ERROR;; aPrevErr = anErr, anErr = ::glGetError()) |
801 | { | |
802 | if (anErr == GL_NO_ERROR | |
803 | || anErr == aPrevErr) | |
804 | { | |
805 | break; | |
806 | } | |
807 | } | |
ca3c13d1 | 808 | #endif |
5f8b738e | 809 | |
810 | // Read version string. | |
ca3c13d1 | 811 | // Notice that only first two numbers split by point '2.1 XXXXX' are significant. |
5f8b738e | 812 | // Following trash (after space) is vendor-specific. |
813 | // New drivers also returns micro version of GL like '3.3.0' which has no meaning | |
814 | // and should be considered as vendor-specific too. | |
815 | const char* aVerStr = (const char* )glGetString (GL_VERSION); | |
816 | if (aVerStr == NULL || *aVerStr == '\0') | |
817 | { | |
818 | // invalid GL context | |
819 | return; | |
820 | } | |
821 | ||
ca3c13d1 | 822 | //#if defined(GL_ES_VERSION_2_0) |
823 | // skip "OpenGL ES-** " section | |
824 | for (; *aVerStr != '\0'; ++aVerStr) | |
825 | { | |
826 | if (*aVerStr >= '0' && *aVerStr <= '9') | |
827 | { | |
828 | break; | |
829 | } | |
830 | } | |
831 | //#endif | |
832 | ||
5f8b738e | 833 | // parse string for major number |
834 | char aMajorStr[32]; | |
835 | char aMinorStr[32]; | |
836 | size_t aMajIter = 0; | |
837 | while (aVerStr[aMajIter] >= '0' && aVerStr[aMajIter] <= '9') | |
838 | { | |
839 | ++aMajIter; | |
840 | } | |
841 | if (aMajIter == 0 || aMajIter >= sizeof(aMajorStr)) | |
842 | { | |
843 | return; | |
844 | } | |
845 | memcpy (aMajorStr, aVerStr, aMajIter); | |
846 | aMajorStr[aMajIter] = '\0'; | |
847 | ||
848 | // parse string for minor number | |
86325709 | 849 | aVerStr += aMajIter + 1; |
850 | size_t aMinIter = 0; | |
5f8b738e | 851 | while (aVerStr[aMinIter] >= '0' && aVerStr[aMinIter] <= '9') |
852 | { | |
853 | ++aMinIter; | |
854 | } | |
86325709 | 855 | if (aMinIter == 0 || aMinIter >= sizeof(aMinorStr)) |
5f8b738e | 856 | { |
857 | return; | |
858 | } | |
86325709 | 859 | memcpy (aMinorStr, aVerStr, aMinIter); |
860 | aMinorStr[aMinIter] = '\0'; | |
5f8b738e | 861 | |
862 | // read numbers | |
4e1523ef | 863 | theGlVerMajor = atoi (aMajorStr); |
864 | theGlVerMinor = atoi (aMinorStr); | |
5f8b738e | 865 | |
4e1523ef | 866 | if (theGlVerMajor <= 0) |
5f8b738e | 867 | { |
4e1523ef | 868 | theGlVerMajor = 0; |
869 | theGlVerMinor = 0; | |
5f8b738e | 870 | } |
871 | } | |
872 | ||
58655684 | 873 | static Standard_CString THE_DBGMSG_UNKNOWN = "UNKNOWN"; |
874 | static Standard_CString THE_DBGMSG_SOURCES[] = | |
875 | { | |
cbf18624 | 876 | ".OpenGL", // GL_DEBUG_SOURCE_API_ARB |
877 | ".WinSystem", // GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB | |
878 | ".GLSL", // GL_DEBUG_SOURCE_SHADER_COMPILER_ARB | |
879 | ".3rdParty", // GL_DEBUG_SOURCE_THIRD_PARTY_ARB | |
880 | "", // GL_DEBUG_SOURCE_APPLICATION_ARB | |
881 | ".Other" // GL_DEBUG_SOURCE_OTHER_ARB | |
58655684 | 882 | }; |
883 | ||
884 | static Standard_CString THE_DBGMSG_TYPES[] = | |
885 | { | |
cbf18624 | 886 | "Error", // GL_DEBUG_TYPE_ERROR_ARB |
887 | "Deprecated", // GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB | |
888 | "Undef. behavior", // GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB | |
889 | "Portability", // GL_DEBUG_TYPE_PORTABILITY_ARB | |
890 | "Performance", // GL_DEBUG_TYPE_PERFORMANCE_ARB | |
891 | "Other" // GL_DEBUG_TYPE_OTHER_ARB | |
58655684 | 892 | }; |
893 | ||
894 | static Standard_CString THE_DBGMSG_SEV_HIGH = "High"; // GL_DEBUG_SEVERITY_HIGH_ARB | |
895 | static Standard_CString THE_DBGMSG_SEV_MEDIUM = "Medium"; // GL_DEBUG_SEVERITY_MEDIUM_ARB | |
896 | static Standard_CString THE_DBGMSG_SEV_LOW = "Low"; // GL_DEBUG_SEVERITY_LOW_ARB | |
897 | ||
ca3c13d1 | 898 | #if !defined(GL_ES_VERSION_2_0) |
cbf18624 | 899 | //! Callback for GL_ARB_debug_output extension |
58655684 | 900 | static void APIENTRY debugCallbackWrap(unsigned int theSource, |
901 | unsigned int theType, | |
902 | unsigned int theId, | |
903 | unsigned int theSeverity, | |
904 | int /*theLength*/, | |
905 | const char* theMessage, | |
9293178b | 906 | const void* theUserParam) |
cbf18624 | 907 | { |
908 | OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
909 | aCtx->PushMessage (theSource, theType, theId, theSeverity, theMessage); | |
910 | } | |
ca3c13d1 | 911 | #endif |
cbf18624 | 912 | |
913 | // ======================================================================= | |
914 | // function : PushMessage | |
915 | // purpose : | |
916 | // ======================================================================= | |
917 | void OpenGl_Context::PushMessage (const unsigned int theSource, | |
918 | const unsigned int theType, | |
919 | const unsigned int theId, | |
920 | const unsigned int theSeverity, | |
921 | const TCollection_ExtendedString& theMessage) | |
58655684 | 922 | { |
c87535af | 923 | if (caps->suppressExtraMsg |
924 | && theSource >= GL_DEBUG_SOURCE_API_ARB | |
925 | && theSource <= GL_DEBUG_SOURCE_OTHER_ARB | |
926 | && myFilters[theSource - GL_DEBUG_SOURCE_API_ARB].Contains (theId)) | |
927 | { | |
928 | return; | |
929 | } | |
930 | ||
58655684 | 931 | Standard_CString& aSrc = (theSource >= GL_DEBUG_SOURCE_API_ARB |
01ca42b2 | 932 | && theSource <= GL_DEBUG_SOURCE_OTHER_ARB) |
58655684 | 933 | ? THE_DBGMSG_SOURCES[theSource - GL_DEBUG_SOURCE_API_ARB] |
934 | : THE_DBGMSG_UNKNOWN; | |
935 | Standard_CString& aType = (theType >= GL_DEBUG_TYPE_ERROR_ARB | |
01ca42b2 | 936 | && theType <= GL_DEBUG_TYPE_OTHER_ARB) |
58655684 | 937 | ? THE_DBGMSG_TYPES[theType - GL_DEBUG_TYPE_ERROR_ARB] |
938 | : THE_DBGMSG_UNKNOWN; | |
939 | Standard_CString& aSev = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB | |
940 | ? THE_DBGMSG_SEV_HIGH | |
941 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
942 | ? THE_DBGMSG_SEV_MEDIUM | |
943 | : THE_DBGMSG_SEV_LOW); | |
cbf18624 | 944 | Message_Gravity aGrav = theSeverity == GL_DEBUG_SEVERITY_HIGH_ARB |
945 | ? Message_Alarm | |
946 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM_ARB | |
947 | ? Message_Warning | |
948 | : Message_Info); | |
949 | ||
950 | TCollection_ExtendedString aMsg; | |
951 | aMsg += "TKOpenGl"; aMsg += aSrc; | |
952 | aMsg += " | Type: "; aMsg += aType; | |
953 | aMsg += " | ID: "; aMsg += (Standard_Integer )theId; | |
954 | aMsg += " | Severity: "; aMsg += aSev; | |
955 | aMsg += " | Message:\n "; | |
956 | aMsg += theMessage; | |
7e7c2f0b | 957 | Messenger()->Send (aMsg, aGrav); |
58655684 | 958 | } |
959 | ||
c87535af | 960 | // ======================================================================= |
961 | // function : ExcludeMessage | |
962 | // purpose : | |
963 | // ====================================================================== | |
964 | Standard_Boolean OpenGl_Context::ExcludeMessage (const unsigned int theSource, | |
965 | const unsigned int theId) | |
966 | { | |
967 | return theSource >= GL_DEBUG_SOURCE_API_ARB | |
968 | && theSource <= GL_DEBUG_SOURCE_OTHER_ARB | |
969 | && myFilters[theSource - GL_DEBUG_SOURCE_API_ARB].Add (theId); | |
970 | } | |
971 | ||
972 | // ======================================================================= | |
973 | // function : IncludeMessage | |
974 | // purpose : | |
975 | // ====================================================================== | |
976 | Standard_Boolean OpenGl_Context::IncludeMessage (const unsigned int theSource, | |
977 | const unsigned int theId) | |
978 | { | |
979 | return theSource >= GL_DEBUG_SOURCE_API_ARB | |
980 | && theSource <= GL_DEBUG_SOURCE_OTHER_ARB | |
981 | && myFilters[theSource - GL_DEBUG_SOURCE_API_ARB].Remove (theId); | |
982 | } | |
983 | ||
ee51a9fe | 984 | // ======================================================================= |
985 | // function : checkWrongVersion | |
986 | // purpose : | |
987 | // ====================================================================== | |
988 | void OpenGl_Context::checkWrongVersion (const Standard_Integer theGlVerMajor, | |
989 | const Standard_Integer theGlVerMinor) | |
990 | { | |
991 | if (!IsGlGreaterEqual (theGlVerMajor, theGlVerMinor)) | |
992 | { | |
993 | return; | |
994 | } | |
995 | ||
996 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() | |
997 | + "Error! OpenGL context reports version " | |
998 | + myGlVerMajor + "." + myGlVerMinor | |
999 | + " but does not export required functions for " | |
1000 | + theGlVerMajor + "." + theGlVerMinor; | |
1001 | PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, | |
1002 | GL_DEBUG_TYPE_ERROR_ARB, | |
1003 | 0, | |
1004 | GL_DEBUG_SEVERITY_HIGH_ARB, | |
1005 | aMsg); | |
1006 | } | |
1007 | ||
5f8b738e | 1008 | // ======================================================================= |
1009 | // function : init | |
1010 | // purpose : | |
1011 | // ======================================================================= | |
4e1523ef | 1012 | void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile) |
5f8b738e | 1013 | { |
1014 | // read version | |
4e1523ef | 1015 | myGlVerMajor = 0; |
1016 | myGlVerMinor = 0; | |
1017 | ReadGlVersion (myGlVerMajor, myGlVerMinor); | |
c87535af | 1018 | myVendor = (const char* )::glGetString (GL_VENDOR); |
4e1523ef | 1019 | |
1020 | #if defined(GL_ES_VERSION_2_0) | |
1021 | (void )theIsCoreProfile; | |
1022 | const bool isCoreProfile = false; | |
1023 | #else | |
c87535af | 1024 | |
1025 | if (myVendor.Search ("NVIDIA") != -1) | |
1026 | { | |
1027 | // Buffer detailed info: Buffer object 1 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW) | |
1028 | // will use VIDEO memory as the source for buffer object operations. | |
1029 | ExcludeMessage (GL_DEBUG_SOURCE_API_ARB, 131185); | |
1030 | } | |
4e1523ef | 1031 | if (IsGlGreaterEqual (3, 0)) |
1032 | { | |
1033 | // retrieve auxiliary function in advance | |
1034 | FindProc ("glGetStringi", myFuncs->glGetStringi); | |
1035 | } | |
1036 | ||
d4271fe5 | 1037 | bool isCoreProfile = false; |
4e1523ef | 1038 | if (IsGlGreaterEqual (3, 2)) |
1039 | { | |
d4271fe5 | 1040 | isCoreProfile = (theIsCoreProfile == Standard_True); |
4e1523ef | 1041 | |
d4271fe5 | 1042 | // detect Core profile |
1043 | if (isCoreProfile) | |
4e1523ef | 1044 | { |
d4271fe5 | 1045 | GLint aProfile = 0; |
1046 | ::glGetIntegerv (GL_CONTEXT_PROFILE_MASK, &aProfile); | |
1047 | isCoreProfile = (aProfile & GL_CONTEXT_CORE_PROFILE_BIT) != 0; | |
4e1523ef | 1048 | } |
1049 | } | |
4e1523ef | 1050 | #endif |
1051 | ||
1052 | core11 = NULL; | |
1053 | if (!isCoreProfile) | |
1054 | { | |
1055 | core11 = (OpenGl_GlCore11* )(&(*myFuncs)); | |
1056 | } | |
01ca42b2 | 1057 | core11fwd = (OpenGl_GlCore11Fwd* )(&(*myFuncs)); |
1058 | core15 = NULL; | |
1059 | core15fwd = NULL; | |
1060 | core20 = NULL; | |
1061 | core20fwd = NULL; | |
1062 | core32 = NULL; | |
1063 | core32back = NULL; | |
25ef750e | 1064 | core33 = NULL; |
1065 | core33back = NULL; | |
01ca42b2 | 1066 | core41 = NULL; |
1067 | core41back = NULL; | |
1068 | core42 = NULL; | |
1069 | core42back = NULL; | |
1070 | core43 = NULL; | |
1071 | core43back = NULL; | |
1072 | core44 = NULL; | |
1073 | core44back = NULL; | |
1074 | arbTBO = NULL; | |
25ef750e | 1075 | arbTboRGB32 = Standard_False; |
01ca42b2 | 1076 | arbIns = NULL; |
1077 | arbDbg = NULL; | |
1078 | arbFBO = NULL; | |
b86bb3df | 1079 | arbFBOBlit = NULL; |
01ca42b2 | 1080 | extGS = NULL; |
4e1523ef | 1081 | myDefaultVao = 0; |
01ca42b2 | 1082 | |
ca3c13d1 | 1083 | #if defined(GL_ES_VERSION_2_0) |
1084 | ||
1085 | hasTexRGBA8 = IsGlGreaterEqual (3, 0) | |
1086 | || CheckExtension ("GL_OES_rgb8_rgba8"); | |
05e2200b | 1087 | // NPOT textures has limited support within OpenGL ES 2.0 |
1088 | // which are relaxed by OpenGL ES 3.0 or some extensions | |
1089 | //arbNPTW = IsGlGreaterEqual (3, 0) | |
1090 | // || CheckExtension ("GL_OES_texture_npot") | |
1091 | // || CheckExtension ("GL_NV_texture_npot_2D_mipmap"); | |
1092 | arbNPTW = Standard_True; | |
ca3c13d1 | 1093 | arbTexRG = IsGlGreaterEqual (3, 0) |
1094 | || CheckExtension ("GL_EXT_texture_rg"); | |
1095 | extBgra = CheckExtension ("GL_EXT_texture_format_BGRA8888"); | |
1096 | extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic"); | |
1097 | extPDS = CheckExtension ("GL_OES_packed_depth_stencil"); | |
1098 | ||
1099 | core11fwd = (OpenGl_GlCore11Fwd* )(&(*myFuncs)); | |
1100 | if (IsGlGreaterEqual (2, 0)) | |
1101 | { | |
1102 | // enable compatible functions | |
1103 | core20 = (OpenGl_GlCore20* )(&(*myFuncs)); | |
1104 | core20fwd = (OpenGl_GlCore20Fwd* )(&(*myFuncs)); | |
1105 | core15fwd = (OpenGl_GlCore15Fwd* )(&(*myFuncs)); | |
b86bb3df | 1106 | arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs)); |
1107 | } | |
1108 | if (IsGlGreaterEqual (3, 0) | |
1109 | && FindProc ("glBlitFramebuffer", myFuncs->glBlitFramebuffer)) | |
1110 | { | |
1111 | arbFBOBlit = (OpenGl_ArbFBOBlit* )(&(*myFuncs)); | |
ca3c13d1 | 1112 | } |
1113 | ||
e99a2f7c | 1114 | hasUintIndex = IsGlGreaterEqual (3, 0) |
1115 | || CheckExtension ("GL_OES_element_index_uint"); | |
1116 | hasHighp = CheckExtension ("GL_OES_fragment_precision_high"); | |
ca3c13d1 | 1117 | GLint aRange[2] = {0, 0}; |
447c4115 | 1118 | GLint aPrec = 0; |
1119 | ::glGetShaderPrecisionFormat (GL_FRAGMENT_SHADER, GL_HIGH_FLOAT, aRange, &aPrec); | |
1120 | if (aPrec != 0) | |
ca3c13d1 | 1121 | { |
1122 | hasHighp = Standard_True; | |
1123 | } | |
1124 | #else | |
1125 | ||
1126 | myTexClamp = IsGlGreaterEqual (1, 2) ? GL_CLAMP_TO_EDGE : GL_CLAMP; | |
1127 | ||
1128 | hasTexRGBA8 = Standard_True; | |
bf75be98 | 1129 | arbNPTW = CheckExtension ("GL_ARB_texture_non_power_of_two"); |
1130 | extBgra = CheckExtension ("GL_EXT_bgra"); | |
1131 | extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic"); | |
b859a34d | 1132 | extPDS = CheckExtension ("GL_EXT_packed_depth_stencil"); |
bf75be98 | 1133 | atiMem = CheckExtension ("GL_ATI_meminfo"); |
1134 | nvxMem = CheckExtension ("GL_NVX_gpu_memory_info"); | |
1135 | ||
ca3c13d1 | 1136 | GLint aStereo = GL_FALSE; |
b5ac8292 | 1137 | glGetIntegerv (GL_STEREO, &aStereo); |
1138 | myIsStereoBuffers = aStereo == 1; | |
1139 | ||
ca3c13d1 | 1140 | // get number of maximum clipping planes |
1141 | glGetIntegerv (GL_MAX_CLIP_PLANES, &myMaxClipPlanes); | |
1142 | #endif | |
1143 | ||
1144 | glGetIntegerv (GL_MAX_TEXTURE_SIZE, &myMaxTexDim); | |
1145 | ||
bf75be98 | 1146 | if (extAnis) |
1147 | { | |
1148 | glGetIntegerv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &myAnisoMax); | |
1149 | } | |
f0430952 | 1150 | |
4269bd1b | 1151 | myClippingState.Init (myMaxClipPlanes); |
1152 | ||
ca3c13d1 | 1153 | #if !defined(GL_ES_VERSION_2_0) |
1154 | ||
01ca42b2 | 1155 | bool has12 = false; |
1156 | bool has13 = false; | |
1157 | bool has14 = false; | |
1158 | bool has15 = false; | |
1159 | bool has20 = false; | |
1160 | bool has21 = false; | |
1161 | bool has30 = false; | |
1162 | bool has31 = false; | |
1163 | bool has32 = false; | |
1164 | bool has33 = false; | |
1165 | bool has40 = false; | |
1166 | bool has41 = false; | |
1167 | bool has42 = false; | |
1168 | bool has43 = false; | |
1169 | bool has44 = false; | |
1170 | ||
1171 | //! Make record shorter to retrieve function pointer using variable with same name | |
1172 | #define FindProcShort(theFunc) FindProc(#theFunc, myFuncs->theFunc) | |
1173 | ||
4e1523ef | 1174 | // retrieve platform-dependent extensions |
f978241f | 1175 | #if defined(HAVE_EGL) |
1176 | // | |
1177 | #elif defined(_WIN32) | |
01ca42b2 | 1178 | if (FindProcShort (wglGetExtensionsStringARB)) |
1179 | { | |
1180 | const char* aWglExts = myFuncs->wglGetExtensionsStringARB (wglGetCurrentDC()); | |
1181 | if (CheckExtension (aWglExts, "WGL_EXT_swap_control")) | |
1182 | { | |
1183 | FindProcShort (wglSwapIntervalEXT); | |
1184 | } | |
1185 | if (CheckExtension (aWglExts, "WGL_ARB_pixel_format")) | |
1186 | { | |
1187 | FindProcShort (wglChoosePixelFormatARB); | |
1188 | } | |
1189 | if (CheckExtension (aWglExts, "WGL_ARB_create_context_profile")) | |
1190 | { | |
1191 | FindProcShort (wglCreateContextAttribsARB); | |
1192 | } | |
1193 | if (CheckExtension (aWglExts, "WGL_NV_DX_interop")) | |
1194 | { | |
1195 | FindProcShort (wglDXSetResourceShareHandleNV); | |
1196 | FindProcShort (wglDXOpenDeviceNV); | |
1197 | FindProcShort (wglDXCloseDeviceNV); | |
1198 | FindProcShort (wglDXRegisterObjectNV); | |
1199 | FindProcShort (wglDXUnregisterObjectNV); | |
1200 | FindProcShort (wglDXObjectAccessNV); | |
1201 | FindProcShort (wglDXLockObjectsNV); | |
1202 | FindProcShort (wglDXUnlockObjectsNV); | |
1203 | } | |
1204 | } | |
f978241f | 1205 | #elif defined(__APPLE__) |
1206 | // | |
1207 | #else | |
1208 | const char* aGlxExts = ::glXQueryExtensionsString ((Display* )myDisplay, DefaultScreen ((Display* )myDisplay)); | |
1209 | if (CheckExtension (aGlxExts, "GLX_EXT_swap_control")) | |
1210 | { | |
1211 | FindProcShort (glXSwapIntervalEXT); | |
1212 | } | |
1213 | if (CheckExtension (aGlxExts, "GLX_SGI_swap_control")) | |
1214 | { | |
1215 | FindProcShort (glXSwapIntervalSGI); | |
1216 | } | |
1217 | //extSwapTear = CheckExtension (aGlxExts, "GLX_EXT_swap_control_tear"); | |
01ca42b2 | 1218 | #endif |
1219 | ||
58655684 | 1220 | // initialize debug context extension |
1221 | if (CheckExtension ("GL_ARB_debug_output")) | |
1222 | { | |
01ca42b2 | 1223 | arbDbg = NULL; |
1224 | if (FindProcShort (glDebugMessageControlARB) | |
1225 | && FindProcShort (glDebugMessageInsertARB) | |
1226 | && FindProcShort (glDebugMessageCallbackARB) | |
1227 | && FindProcShort (glGetDebugMessageLogARB)) | |
58655684 | 1228 | { |
01ca42b2 | 1229 | arbDbg = (OpenGl_ArbDbg* )(&(*myFuncs)); |
58655684 | 1230 | } |
1231 | if (arbDbg != NULL | |
1232 | && caps->contextDebug) | |
1233 | { | |
1234 | // setup default callback | |
4e1523ef | 1235 | myIsGlDebugCtx = Standard_True; |
58655684 | 1236 | arbDbg->glDebugMessageCallbackARB (debugCallbackWrap, this); |
c87535af | 1237 | if (caps->contextSyncDebug) |
1238 | { | |
1239 | ::glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB); | |
1240 | } | |
58655684 | 1241 | } |
1242 | } | |
1243 | ||
01ca42b2 | 1244 | // load OpenGL 1.2 new functions |
1245 | has12 = IsGlGreaterEqual (1, 2) | |
1246 | && FindProcShort (glBlendColor) | |
1247 | && FindProcShort (glBlendEquation) | |
1248 | && FindProcShort (glDrawRangeElements) | |
1249 | && FindProcShort (glTexImage3D) | |
1250 | && FindProcShort (glTexSubImage3D) | |
1251 | && FindProcShort (glCopyTexSubImage3D); | |
1252 | ||
1253 | // load OpenGL 1.3 new functions | |
1254 | has13 = IsGlGreaterEqual (1, 3) | |
1255 | && FindProcShort (glActiveTexture) | |
1256 | && FindProcShort (glSampleCoverage) | |
1257 | && FindProcShort (glCompressedTexImage3D) | |
1258 | && FindProcShort (glCompressedTexImage2D) | |
1259 | && FindProcShort (glCompressedTexImage1D) | |
1260 | && FindProcShort (glCompressedTexSubImage3D) | |
1261 | && FindProcShort (glCompressedTexSubImage2D) | |
1262 | && FindProcShort (glCompressedTexSubImage1D) | |
4e1523ef | 1263 | && FindProcShort (glGetCompressedTexImage); |
1264 | ||
1265 | if (!isCoreProfile) | |
1266 | { | |
1267 | has13 = has13 | |
01ca42b2 | 1268 | && FindProcShort (glClientActiveTexture) |
1269 | && FindProcShort (glMultiTexCoord1d) | |
1270 | && FindProcShort (glMultiTexCoord1dv) | |
1271 | && FindProcShort (glMultiTexCoord1f) | |
1272 | && FindProcShort (glMultiTexCoord1fv) | |
1273 | && FindProcShort (glMultiTexCoord1i) | |
1274 | && FindProcShort (glMultiTexCoord1iv) | |
1275 | && FindProcShort (glMultiTexCoord1s) | |
1276 | && FindProcShort (glMultiTexCoord1sv) | |
1277 | && FindProcShort (glMultiTexCoord2d) | |
1278 | && FindProcShort (glMultiTexCoord2dv) | |
1279 | && FindProcShort (glMultiTexCoord2f) | |
1280 | && FindProcShort (glMultiTexCoord2fv) | |
1281 | && FindProcShort (glMultiTexCoord2i) | |
1282 | && FindProcShort (glMultiTexCoord2iv) | |
1283 | && FindProcShort (glMultiTexCoord2s) | |
1284 | && FindProcShort (glMultiTexCoord2sv) | |
1285 | && FindProcShort (glMultiTexCoord3d) | |
1286 | && FindProcShort (glMultiTexCoord3dv) | |
1287 | && FindProcShort (glMultiTexCoord3f) | |
1288 | && FindProcShort (glMultiTexCoord3fv) | |
1289 | && FindProcShort (glMultiTexCoord3i) | |
1290 | && FindProcShort (glMultiTexCoord3iv) | |
1291 | && FindProcShort (glMultiTexCoord3s) | |
1292 | && FindProcShort (glMultiTexCoord3sv) | |
1293 | && FindProcShort (glMultiTexCoord4d) | |
1294 | && FindProcShort (glMultiTexCoord4dv) | |
1295 | && FindProcShort (glMultiTexCoord4f) | |
1296 | && FindProcShort (glMultiTexCoord4fv) | |
1297 | && FindProcShort (glMultiTexCoord4i) | |
1298 | && FindProcShort (glMultiTexCoord4iv) | |
1299 | && FindProcShort (glMultiTexCoord4s) | |
1300 | && FindProcShort (glMultiTexCoord4sv) | |
1301 | && FindProcShort (glLoadTransposeMatrixf) | |
1302 | && FindProcShort (glLoadTransposeMatrixd) | |
1303 | && FindProcShort (glMultTransposeMatrixf) | |
1304 | && FindProcShort (glMultTransposeMatrixd); | |
4e1523ef | 1305 | } |
01ca42b2 | 1306 | |
1307 | // load OpenGL 1.4 new functions | |
1308 | has14 = IsGlGreaterEqual (1, 4) | |
1309 | && FindProcShort (glBlendFuncSeparate) | |
1310 | && FindProcShort (glMultiDrawArrays) | |
1311 | && FindProcShort (glMultiDrawElements) | |
1312 | && FindProcShort (glPointParameterf) | |
1313 | && FindProcShort (glPointParameterfv) | |
1314 | && FindProcShort (glPointParameteri) | |
1315 | && FindProcShort (glPointParameteriv); | |
1316 | ||
1317 | // load OpenGL 1.5 new functions | |
1318 | has15 = IsGlGreaterEqual (1, 5) | |
1319 | && FindProcShort (glGenQueries) | |
1320 | && FindProcShort (glDeleteQueries) | |
1321 | && FindProcShort (glIsQuery) | |
1322 | && FindProcShort (glBeginQuery) | |
1323 | && FindProcShort (glEndQuery) | |
1324 | && FindProcShort (glGetQueryiv) | |
1325 | && FindProcShort (glGetQueryObjectiv) | |
1326 | && FindProcShort (glGetQueryObjectuiv) | |
1327 | && FindProcShort (glBindBuffer) | |
1328 | && FindProcShort (glDeleteBuffers) | |
1329 | && FindProcShort (glGenBuffers) | |
1330 | && FindProcShort (glIsBuffer) | |
1331 | && FindProcShort (glBufferData) | |
1332 | && FindProcShort (glBufferSubData) | |
1333 | && FindProcShort (glGetBufferSubData) | |
1334 | && FindProcShort (glMapBuffer) | |
1335 | && FindProcShort (glUnmapBuffer) | |
1336 | && FindProcShort (glGetBufferParameteriv) | |
1337 | && FindProcShort (glGetBufferPointerv); | |
1338 | ||
1339 | // load OpenGL 2.0 new functions | |
1340 | has20 = IsGlGreaterEqual (2, 0) | |
1341 | && FindProcShort (glBlendEquationSeparate) | |
1342 | && FindProcShort (glDrawBuffers) | |
1343 | && FindProcShort (glStencilOpSeparate) | |
1344 | && FindProcShort (glStencilFuncSeparate) | |
1345 | && FindProcShort (glStencilMaskSeparate) | |
1346 | && FindProcShort (glAttachShader) | |
1347 | && FindProcShort (glBindAttribLocation) | |
1348 | && FindProcShort (glCompileShader) | |
1349 | && FindProcShort (glCreateProgram) | |
1350 | && FindProcShort (glCreateShader) | |
1351 | && FindProcShort (glDeleteProgram) | |
1352 | && FindProcShort (glDeleteShader) | |
1353 | && FindProcShort (glDetachShader) | |
1354 | && FindProcShort (glDisableVertexAttribArray) | |
1355 | && FindProcShort (glEnableVertexAttribArray) | |
1356 | && FindProcShort (glGetActiveAttrib) | |
1357 | && FindProcShort (glGetActiveUniform) | |
1358 | && FindProcShort (glGetAttachedShaders) | |
1359 | && FindProcShort (glGetAttribLocation) | |
1360 | && FindProcShort (glGetProgramiv) | |
1361 | && FindProcShort (glGetProgramInfoLog) | |
1362 | && FindProcShort (glGetShaderiv) | |
1363 | && FindProcShort (glGetShaderInfoLog) | |
1364 | && FindProcShort (glGetShaderSource) | |
1365 | && FindProcShort (glGetUniformLocation) | |
1366 | && FindProcShort (glGetUniformfv) | |
1367 | && FindProcShort (glGetUniformiv) | |
1368 | && FindProcShort (glGetVertexAttribdv) | |
1369 | && FindProcShort (glGetVertexAttribfv) | |
1370 | && FindProcShort (glGetVertexAttribiv) | |
1371 | && FindProcShort (glGetVertexAttribPointerv) | |
1372 | && FindProcShort (glIsProgram) | |
1373 | && FindProcShort (glIsShader) | |
1374 | && FindProcShort (glLinkProgram) | |
1375 | && FindProcShort (glShaderSource) | |
1376 | && FindProcShort (glUseProgram) | |
1377 | && FindProcShort (glUniform1f) | |
1378 | && FindProcShort (glUniform2f) | |
1379 | && FindProcShort (glUniform3f) | |
1380 | && FindProcShort (glUniform4f) | |
1381 | && FindProcShort (glUniform1i) | |
1382 | && FindProcShort (glUniform2i) | |
1383 | && FindProcShort (glUniform3i) | |
1384 | && FindProcShort (glUniform4i) | |
1385 | && FindProcShort (glUniform1fv) | |
1386 | && FindProcShort (glUniform2fv) | |
1387 | && FindProcShort (glUniform3fv) | |
1388 | && FindProcShort (glUniform4fv) | |
1389 | && FindProcShort (glUniform1iv) | |
1390 | && FindProcShort (glUniform2iv) | |
1391 | && FindProcShort (glUniform3iv) | |
1392 | && FindProcShort (glUniform4iv) | |
1393 | && FindProcShort (glUniformMatrix2fv) | |
1394 | && FindProcShort (glUniformMatrix3fv) | |
1395 | && FindProcShort (glUniformMatrix4fv) | |
1396 | && FindProcShort (glValidateProgram) | |
1397 | && FindProcShort (glVertexAttrib1d) | |
1398 | && FindProcShort (glVertexAttrib1dv) | |
1399 | && FindProcShort (glVertexAttrib1f) | |
1400 | && FindProcShort (glVertexAttrib1fv) | |
1401 | && FindProcShort (glVertexAttrib1s) | |
1402 | && FindProcShort (glVertexAttrib1sv) | |
1403 | && FindProcShort (glVertexAttrib2d) | |
1404 | && FindProcShort (glVertexAttrib2dv) | |
1405 | && FindProcShort (glVertexAttrib2f) | |
1406 | && FindProcShort (glVertexAttrib2fv) | |
1407 | && FindProcShort (glVertexAttrib2s) | |
1408 | && FindProcShort (glVertexAttrib2sv) | |
1409 | && FindProcShort (glVertexAttrib3d) | |
1410 | && FindProcShort (glVertexAttrib3dv) | |
1411 | && FindProcShort (glVertexAttrib3f) | |
1412 | && FindProcShort (glVertexAttrib3fv) | |
1413 | && FindProcShort (glVertexAttrib3s) | |
1414 | && FindProcShort (glVertexAttrib3sv) | |
1415 | && FindProcShort (glVertexAttrib4Nbv) | |
1416 | && FindProcShort (glVertexAttrib4Niv) | |
1417 | && FindProcShort (glVertexAttrib4Nsv) | |
1418 | && FindProcShort (glVertexAttrib4Nub) | |
1419 | && FindProcShort (glVertexAttrib4Nubv) | |
1420 | && FindProcShort (glVertexAttrib4Nuiv) | |
1421 | && FindProcShort (glVertexAttrib4Nusv) | |
1422 | && FindProcShort (glVertexAttrib4bv) | |
1423 | && FindProcShort (glVertexAttrib4d) | |
1424 | && FindProcShort (glVertexAttrib4dv) | |
1425 | && FindProcShort (glVertexAttrib4f) | |
1426 | && FindProcShort (glVertexAttrib4fv) | |
1427 | && FindProcShort (glVertexAttrib4iv) | |
1428 | && FindProcShort (glVertexAttrib4s) | |
1429 | && FindProcShort (glVertexAttrib4sv) | |
1430 | && FindProcShort (glVertexAttrib4ubv) | |
1431 | && FindProcShort (glVertexAttrib4uiv) | |
1432 | && FindProcShort (glVertexAttrib4usv) | |
1433 | && FindProcShort (glVertexAttribPointer); | |
1434 | ||
1435 | // load OpenGL 2.1 new functions | |
1436 | has21 = IsGlGreaterEqual (2, 1) | |
1437 | && FindProcShort (glUniformMatrix2x3fv) | |
1438 | && FindProcShort (glUniformMatrix3x2fv) | |
1439 | && FindProcShort (glUniformMatrix2x4fv) | |
1440 | && FindProcShort (glUniformMatrix4x2fv) | |
1441 | && FindProcShort (glUniformMatrix3x4fv) | |
1442 | && FindProcShort (glUniformMatrix4x3fv); | |
1443 | ||
1444 | // load GL_ARB_framebuffer_object (added to OpenGL 3.0 core) | |
1445 | const bool hasFBO = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_framebuffer_object")) | |
1446 | && FindProcShort (glIsRenderbuffer) | |
1447 | && FindProcShort (glBindRenderbuffer) | |
1448 | && FindProcShort (glDeleteRenderbuffers) | |
1449 | && FindProcShort (glGenRenderbuffers) | |
1450 | && FindProcShort (glRenderbufferStorage) | |
1451 | && FindProcShort (glGetRenderbufferParameteriv) | |
1452 | && FindProcShort (glIsFramebuffer) | |
1453 | && FindProcShort (glBindFramebuffer) | |
1454 | && FindProcShort (glDeleteFramebuffers) | |
1455 | && FindProcShort (glGenFramebuffers) | |
1456 | && FindProcShort (glCheckFramebufferStatus) | |
1457 | && FindProcShort (glFramebufferTexture1D) | |
1458 | && FindProcShort (glFramebufferTexture2D) | |
1459 | && FindProcShort (glFramebufferTexture3D) | |
1460 | && FindProcShort (glFramebufferRenderbuffer) | |
1461 | && FindProcShort (glGetFramebufferAttachmentParameteriv) | |
1462 | && FindProcShort (glGenerateMipmap) | |
1463 | && FindProcShort (glBlitFramebuffer) | |
1464 | && FindProcShort (glRenderbufferStorageMultisample) | |
1465 | && FindProcShort (glFramebufferTextureLayer); | |
1466 | ||
1467 | // load GL_ARB_vertex_array_object (added to OpenGL 3.0 core) | |
1468 | const bool hasVAO = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_vertex_array_object")) | |
1469 | && FindProcShort (glBindVertexArray) | |
1470 | && FindProcShort (glDeleteVertexArrays) | |
1471 | && FindProcShort (glGenVertexArrays) | |
1472 | && FindProcShort (glIsVertexArray); | |
1473 | ||
1474 | // load GL_ARB_map_buffer_range (added to OpenGL 3.0 core) | |
1475 | const bool hasMapBufferRange = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_map_buffer_range")) | |
1476 | && FindProcShort (glMapBufferRange) | |
1477 | && FindProcShort (glFlushMappedBufferRange); | |
1478 | ||
1479 | // load OpenGL 3.0 new functions | |
1480 | has30 = IsGlGreaterEqual (3, 0) | |
1481 | && hasFBO | |
1482 | && hasVAO | |
1483 | && hasMapBufferRange | |
1484 | && FindProcShort (glColorMaski) | |
1485 | && FindProcShort (glGetBooleani_v) | |
1486 | && FindProcShort (glGetIntegeri_v) | |
1487 | && FindProcShort (glEnablei) | |
1488 | && FindProcShort (glDisablei) | |
1489 | && FindProcShort (glIsEnabledi) | |
1490 | && FindProcShort (glBeginTransformFeedback) | |
1491 | && FindProcShort (glEndTransformFeedback) | |
1492 | && FindProcShort (glBindBufferRange) | |
1493 | && FindProcShort (glBindBufferBase) | |
1494 | && FindProcShort (glTransformFeedbackVaryings) | |
1495 | && FindProcShort (glGetTransformFeedbackVarying) | |
1496 | && FindProcShort (glClampColor) | |
1497 | && FindProcShort (glBeginConditionalRender) | |
1498 | && FindProcShort (glEndConditionalRender) | |
1499 | && FindProcShort (glVertexAttribIPointer) | |
1500 | && FindProcShort (glGetVertexAttribIiv) | |
1501 | && FindProcShort (glGetVertexAttribIuiv) | |
1502 | && FindProcShort (glVertexAttribI1i) | |
1503 | && FindProcShort (glVertexAttribI2i) | |
1504 | && FindProcShort (glVertexAttribI3i) | |
1505 | && FindProcShort (glVertexAttribI4i) | |
1506 | && FindProcShort (glVertexAttribI1ui) | |
1507 | && FindProcShort (glVertexAttribI2ui) | |
1508 | && FindProcShort (glVertexAttribI3ui) | |
1509 | && FindProcShort (glVertexAttribI4ui) | |
1510 | && FindProcShort (glVertexAttribI1iv) | |
1511 | && FindProcShort (glVertexAttribI2iv) | |
1512 | && FindProcShort (glVertexAttribI3iv) | |
1513 | && FindProcShort (glVertexAttribI4iv) | |
1514 | && FindProcShort (glVertexAttribI1uiv) | |
1515 | && FindProcShort (glVertexAttribI2uiv) | |
1516 | && FindProcShort (glVertexAttribI3uiv) | |
1517 | && FindProcShort (glVertexAttribI4uiv) | |
1518 | && FindProcShort (glVertexAttribI4bv) | |
1519 | && FindProcShort (glVertexAttribI4sv) | |
1520 | && FindProcShort (glVertexAttribI4ubv) | |
1521 | && FindProcShort (glVertexAttribI4usv) | |
1522 | && FindProcShort (glGetUniformuiv) | |
1523 | && FindProcShort (glBindFragDataLocation) | |
1524 | && FindProcShort (glGetFragDataLocation) | |
1525 | && FindProcShort (glUniform1ui) | |
1526 | && FindProcShort (glUniform2ui) | |
1527 | && FindProcShort (glUniform3ui) | |
1528 | && FindProcShort (glUniform4ui) | |
1529 | && FindProcShort (glUniform1uiv) | |
1530 | && FindProcShort (glUniform2uiv) | |
1531 | && FindProcShort (glUniform3uiv) | |
1532 | && FindProcShort (glUniform4uiv) | |
1533 | && FindProcShort (glTexParameterIiv) | |
1534 | && FindProcShort (glTexParameterIuiv) | |
1535 | && FindProcShort (glGetTexParameterIiv) | |
1536 | && FindProcShort (glGetTexParameterIuiv) | |
1537 | && FindProcShort (glClearBufferiv) | |
1538 | && FindProcShort (glClearBufferuiv) | |
1539 | && FindProcShort (glClearBufferfv) | |
1540 | && FindProcShort (glClearBufferfi) | |
1541 | && FindProcShort (glGetStringi); | |
1542 | ||
1543 | // load GL_ARB_uniform_buffer_object (added to OpenGL 3.1 core) | |
1544 | const bool hasUBO = (IsGlGreaterEqual (3, 1) || CheckExtension ("GL_ARB_uniform_buffer_object")) | |
1545 | && FindProcShort (glGetUniformIndices) | |
1546 | && FindProcShort (glGetActiveUniformsiv) | |
1547 | && FindProcShort (glGetActiveUniformName) | |
1548 | && FindProcShort (glGetUniformBlockIndex) | |
1549 | && FindProcShort (glGetActiveUniformBlockiv) | |
1550 | && FindProcShort (glGetActiveUniformBlockName) | |
1551 | && FindProcShort (glUniformBlockBinding); | |
1552 | ||
1553 | // load GL_ARB_copy_buffer (added to OpenGL 3.1 core) | |
1554 | const bool hasCopyBufSubData = (IsGlGreaterEqual (3, 1) || CheckExtension ("GL_ARB_copy_buffer")) | |
1555 | && FindProcShort (glCopyBufferSubData); | |
1556 | ||
1557 | if (has30) | |
2166f0fa | 1558 | { |
01ca42b2 | 1559 | // NPOT textures are required by OpenGL 2.0 specifications |
1560 | // but doesn't hardware accelerated by some ancient OpenGL 2.1 hardware (GeForce FX, RadeOn 9700 etc.) | |
1561 | arbNPTW = Standard_True; | |
1562 | arbTexRG = Standard_True; | |
2166f0fa SK |
1563 | } |
1564 | ||
01ca42b2 | 1565 | // load OpenGL 3.1 new functions |
1566 | has31 = IsGlGreaterEqual (3, 1) | |
1567 | && hasUBO | |
1568 | && hasCopyBufSubData | |
1569 | && FindProcShort (glDrawArraysInstanced) | |
1570 | && FindProcShort (glDrawElementsInstanced) | |
1571 | && FindProcShort (glTexBuffer) | |
1572 | && FindProcShort (glPrimitiveRestartIndex); | |
1573 | ||
1574 | // load GL_ARB_draw_elements_base_vertex (added to OpenGL 3.2 core) | |
1575 | const bool hasDrawElemsBaseVert = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_draw_elements_base_vertex")) | |
1576 | && FindProcShort (glDrawElementsBaseVertex) | |
1577 | && FindProcShort (glDrawRangeElementsBaseVertex) | |
1578 | && FindProcShort (glDrawElementsInstancedBaseVertex) | |
1579 | && FindProcShort (glMultiDrawElementsBaseVertex); | |
1580 | ||
1581 | // load GL_ARB_provoking_vertex (added to OpenGL 3.2 core) | |
1582 | const bool hasProvokingVert = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_provoking_vertex")) | |
1583 | && FindProcShort (glProvokingVertex); | |
1584 | ||
1585 | // load GL_ARB_sync (added to OpenGL 3.2 core) | |
1586 | const bool hasSync = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_sync")) | |
1587 | && FindProcShort (glFenceSync) | |
1588 | && FindProcShort (glIsSync) | |
1589 | && FindProcShort (glDeleteSync) | |
1590 | && FindProcShort (glClientWaitSync) | |
1591 | && FindProcShort (glWaitSync) | |
1592 | && FindProcShort (glGetInteger64v) | |
1593 | && FindProcShort (glGetSynciv); | |
1594 | ||
1595 | // load GL_ARB_texture_multisample (added to OpenGL 3.2 core) | |
1596 | const bool hasTextureMultisample = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_texture_multisample")) | |
1597 | && FindProcShort (glTexImage2DMultisample) | |
1598 | && FindProcShort (glTexImage3DMultisample) | |
1599 | && FindProcShort (glGetMultisamplefv) | |
1600 | && FindProcShort (glSampleMaski); | |
1601 | ||
1602 | // load OpenGL 3.2 new functions | |
1603 | has32 = IsGlGreaterEqual (3, 2) | |
1604 | && hasDrawElemsBaseVert | |
1605 | && hasProvokingVert | |
1606 | && hasSync | |
1607 | && hasTextureMultisample | |
1608 | && FindProcShort (glGetInteger64i_v) | |
1609 | && FindProcShort (glGetBufferParameteri64v) | |
1610 | && FindProcShort (glFramebufferTexture); | |
1611 | ||
1612 | // load GL_ARB_blend_func_extended (added to OpenGL 3.3 core) | |
1613 | const bool hasBlendFuncExtended = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_blend_func_extended")) | |
1614 | && FindProcShort (glBindFragDataLocationIndexed) | |
1615 | && FindProcShort (glGetFragDataIndex); | |
1616 | ||
1617 | // load GL_ARB_sampler_objects (added to OpenGL 3.3 core) | |
1618 | const bool hasSamplerObjects = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_sampler_objects")) | |
1619 | && FindProcShort (glGenSamplers) | |
1620 | && FindProcShort (glDeleteSamplers) | |
1621 | && FindProcShort (glIsSampler) | |
1622 | && FindProcShort (glBindSampler) | |
1623 | && FindProcShort (glSamplerParameteri) | |
1624 | && FindProcShort (glSamplerParameteriv) | |
1625 | && FindProcShort (glSamplerParameterf) | |
1626 | && FindProcShort (glSamplerParameterfv) | |
1627 | && FindProcShort (glSamplerParameterIiv) | |
1628 | && FindProcShort (glSamplerParameterIuiv) | |
1629 | && FindProcShort (glGetSamplerParameteriv) | |
1630 | && FindProcShort (glGetSamplerParameterIiv) | |
1631 | && FindProcShort (glGetSamplerParameterfv) | |
1632 | && FindProcShort (glGetSamplerParameterIuiv); | |
1633 | ||
1634 | // load GL_ARB_timer_query (added to OpenGL 3.3 core) | |
1635 | const bool hasTimerQuery = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_timer_query")) | |
1636 | && FindProcShort (glQueryCounter) | |
1637 | && FindProcShort (glGetQueryObjecti64v) | |
1638 | && FindProcShort (glGetQueryObjectui64v); | |
1639 | ||
1640 | // load GL_ARB_vertex_type_2_10_10_10_rev (added to OpenGL 3.3 core) | |
1641 | const bool hasVertType21010101rev = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_vertex_type_2_10_10_10_rev")) | |
1642 | && FindProcShort (glVertexP2ui) | |
1643 | && FindProcShort (glVertexP2uiv) | |
1644 | && FindProcShort (glVertexP3ui) | |
1645 | && FindProcShort (glVertexP3uiv) | |
1646 | && FindProcShort (glVertexP4ui) | |
1647 | && FindProcShort (glVertexP4uiv) | |
1648 | && FindProcShort (glTexCoordP1ui) | |
1649 | && FindProcShort (glTexCoordP1uiv) | |
1650 | && FindProcShort (glTexCoordP2ui) | |
1651 | && FindProcShort (glTexCoordP2uiv) | |
1652 | && FindProcShort (glTexCoordP3ui) | |
1653 | && FindProcShort (glTexCoordP3uiv) | |
1654 | && FindProcShort (glTexCoordP4ui) | |
1655 | && FindProcShort (glTexCoordP4uiv) | |
1656 | && FindProcShort (glMultiTexCoordP1ui) | |
1657 | && FindProcShort (glMultiTexCoordP1uiv) | |
1658 | && FindProcShort (glMultiTexCoordP2ui) | |
1659 | && FindProcShort (glMultiTexCoordP2uiv) | |
1660 | && FindProcShort (glMultiTexCoordP3ui) | |
1661 | && FindProcShort (glMultiTexCoordP3uiv) | |
1662 | && FindProcShort (glMultiTexCoordP4ui) | |
1663 | && FindProcShort (glMultiTexCoordP4uiv) | |
1664 | && FindProcShort (glNormalP3ui) | |
1665 | && FindProcShort (glNormalP3uiv) | |
1666 | && FindProcShort (glColorP3ui) | |
1667 | && FindProcShort (glColorP3uiv) | |
1668 | && FindProcShort (glColorP4ui) | |
1669 | && FindProcShort (glColorP4uiv) | |
1670 | && FindProcShort (glSecondaryColorP3ui) | |
1671 | && FindProcShort (glSecondaryColorP3uiv) | |
1672 | && FindProcShort (glVertexAttribP1ui) | |
1673 | && FindProcShort (glVertexAttribP1uiv) | |
1674 | && FindProcShort (glVertexAttribP2ui) | |
1675 | && FindProcShort (glVertexAttribP2uiv) | |
1676 | && FindProcShort (glVertexAttribP3ui) | |
1677 | && FindProcShort (glVertexAttribP3uiv) | |
1678 | && FindProcShort (glVertexAttribP4ui) | |
1679 | && FindProcShort (glVertexAttribP4uiv); | |
1680 | ||
1681 | // load OpenGL 3.3 extra functions | |
1682 | has33 = IsGlGreaterEqual (3, 3) | |
1683 | && hasBlendFuncExtended | |
1684 | && hasSamplerObjects | |
1685 | && hasTimerQuery | |
1686 | && hasVertType21010101rev | |
1687 | && FindProcShort (glVertexAttribDivisor); | |
1688 | ||
1689 | // load GL_ARB_draw_indirect (added to OpenGL 4.0 core) | |
1690 | const bool hasDrawIndirect = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_draw_indirect")) | |
1691 | && FindProcShort (glDrawArraysIndirect) | |
1692 | && FindProcShort (glDrawElementsIndirect); | |
1693 | ||
1694 | // load GL_ARB_gpu_shader_fp64 (added to OpenGL 4.0 core) | |
1695 | const bool hasShaderFP64 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_gpu_shader_fp64")) | |
1696 | && FindProcShort (glUniform1d) | |
1697 | && FindProcShort (glUniform2d) | |
1698 | && FindProcShort (glUniform3d) | |
1699 | && FindProcShort (glUniform4d) | |
1700 | && FindProcShort (glUniform1dv) | |
1701 | && FindProcShort (glUniform2dv) | |
1702 | && FindProcShort (glUniform3dv) | |
1703 | && FindProcShort (glUniform4dv) | |
1704 | && FindProcShort (glUniformMatrix2dv) | |
1705 | && FindProcShort (glUniformMatrix3dv) | |
1706 | && FindProcShort (glUniformMatrix4dv) | |
1707 | && FindProcShort (glUniformMatrix2x3dv) | |
1708 | && FindProcShort (glUniformMatrix2x4dv) | |
1709 | && FindProcShort (glUniformMatrix3x2dv) | |
1710 | && FindProcShort (glUniformMatrix3x4dv) | |
1711 | && FindProcShort (glUniformMatrix4x2dv) | |
1712 | && FindProcShort (glUniformMatrix4x3dv) | |
1713 | && FindProcShort (glGetUniformdv); | |
1714 | ||
1715 | // load GL_ARB_shader_subroutine (added to OpenGL 4.0 core) | |
1716 | const bool hasShaderSubroutine = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_shader_subroutine")) | |
1717 | && FindProcShort (glGetSubroutineUniformLocation) | |
1718 | && FindProcShort (glGetSubroutineIndex) | |
1719 | && FindProcShort (glGetActiveSubroutineUniformiv) | |
1720 | && FindProcShort (glGetActiveSubroutineUniformName) | |
1721 | && FindProcShort (glGetActiveSubroutineName) | |
1722 | && FindProcShort (glUniformSubroutinesuiv) | |
1723 | && FindProcShort (glGetUniformSubroutineuiv) | |
1724 | && FindProcShort (glGetProgramStageiv); | |
1725 | ||
1726 | // load GL_ARB_tessellation_shader (added to OpenGL 4.0 core) | |
1727 | const bool hasTessellationShader = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_tessellation_shader")) | |
1728 | && FindProcShort (glPatchParameteri) | |
1729 | && FindProcShort (glPatchParameterfv); | |
1730 | ||
1731 | // load GL_ARB_transform_feedback2 (added to OpenGL 4.0 core) | |
1732 | const bool hasTrsfFeedback2 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_transform_feedback2")) | |
1733 | && FindProcShort (glBindTransformFeedback) | |
1734 | && FindProcShort (glDeleteTransformFeedbacks) | |
1735 | && FindProcShort (glGenTransformFeedbacks) | |
1736 | && FindProcShort (glIsTransformFeedback) | |
1737 | && FindProcShort (glPauseTransformFeedback) | |
1738 | && FindProcShort (glResumeTransformFeedback) | |
1739 | && FindProcShort (glDrawTransformFeedback); | |
1740 | ||
1741 | // load GL_ARB_transform_feedback3 (added to OpenGL 4.0 core) | |
1742 | const bool hasTrsfFeedback3 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_transform_feedback3")) | |
1743 | && FindProcShort (glDrawTransformFeedbackStream) | |
1744 | && FindProcShort (glBeginQueryIndexed) | |
1745 | && FindProcShort (glEndQueryIndexed) | |
1746 | && FindProcShort (glGetQueryIndexediv); | |
1747 | ||
1748 | // load OpenGL 4.0 new functions | |
1749 | has40 = IsGlGreaterEqual (4, 0) | |
1750 | && hasDrawIndirect | |
1751 | && hasShaderFP64 | |
1752 | && hasShaderSubroutine | |
1753 | && hasTessellationShader | |
1754 | && hasTrsfFeedback2 | |
1755 | && hasTrsfFeedback3 | |
1756 | && FindProcShort (glMinSampleShading) | |
1757 | && FindProcShort (glBlendEquationi) | |
1758 | && FindProcShort (glBlendEquationSeparatei) | |
1759 | && FindProcShort (glBlendFunci) | |
1760 | && FindProcShort (glBlendFuncSeparatei); | |
1761 | ||
1762 | // load GL_ARB_ES2_compatibility (added to OpenGL 4.1 core) | |
1763 | const bool hasES2Compatibility = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_ES2_compatibility")) | |
1764 | && FindProcShort (glReleaseShaderCompiler) | |
1765 | && FindProcShort (glShaderBinary) | |
1766 | && FindProcShort (glGetShaderPrecisionFormat) | |
1767 | && FindProcShort (glDepthRangef) | |
1768 | && FindProcShort (glClearDepthf); | |
1769 | ||
1770 | // load GL_ARB_get_program_binary (added to OpenGL 4.1 core) | |
1771 | const bool hasGetProgramBinary = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_get_program_binary")) | |
1772 | && FindProcShort (glGetProgramBinary) | |
1773 | && FindProcShort (glProgramBinary) | |
1774 | && FindProcShort (glProgramParameteri); | |
1775 | ||
1776 | ||
1777 | // load GL_ARB_separate_shader_objects (added to OpenGL 4.1 core) | |
1778 | const bool hasSeparateShaderObjects = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_separate_shader_objects")) | |
1779 | && FindProcShort (glUseProgramStages) | |
1780 | && FindProcShort (glActiveShaderProgram) | |
1781 | && FindProcShort (glCreateShaderProgramv) | |
1782 | && FindProcShort (glBindProgramPipeline) | |
1783 | && FindProcShort (glDeleteProgramPipelines) | |
1784 | && FindProcShort (glGenProgramPipelines) | |
1785 | && FindProcShort (glIsProgramPipeline) | |
1786 | && FindProcShort (glGetProgramPipelineiv) | |
1787 | && FindProcShort (glProgramUniform1i) | |
1788 | && FindProcShort (glProgramUniform1iv) | |
1789 | && FindProcShort (glProgramUniform1f) | |
1790 | && FindProcShort (glProgramUniform1fv) | |
1791 | && FindProcShort (glProgramUniform1d) | |
1792 | && FindProcShort (glProgramUniform1dv) | |
1793 | && FindProcShort (glProgramUniform1ui) | |
1794 | && FindProcShort (glProgramUniform1uiv) | |
1795 | && FindProcShort (glProgramUniform2i) | |
1796 | && FindProcShort (glProgramUniform2iv) | |
1797 | && FindProcShort (glProgramUniform2f) | |
1798 | && FindProcShort (glProgramUniform2fv) | |
1799 | && FindProcShort (glProgramUniform2d) | |
1800 | && FindProcShort (glProgramUniform2dv) | |
1801 | && FindProcShort (glProgramUniform2ui) | |
1802 | && FindProcShort (glProgramUniform2uiv) | |
1803 | && FindProcShort (glProgramUniform3i) | |
1804 | && FindProcShort (glProgramUniform3iv) | |
1805 | && FindProcShort (glProgramUniform3f) | |
1806 | && FindProcShort (glProgramUniform3fv) | |
1807 | && FindProcShort (glProgramUniform3d) | |
1808 | && FindProcShort (glProgramUniform3dv) | |
1809 | && FindProcShort (glProgramUniform3ui) | |
1810 | && FindProcShort (glProgramUniform3uiv) | |
1811 | && FindProcShort (glProgramUniform4i) | |
1812 | && FindProcShort (glProgramUniform4iv) | |
1813 | && FindProcShort (glProgramUniform4f) | |
1814 | && FindProcShort (glProgramUniform4fv) | |
1815 | && FindProcShort (glProgramUniform4d) | |
1816 | && FindProcShort (glProgramUniform4dv) | |
1817 | && FindProcShort (glProgramUniform4ui) | |
1818 | && FindProcShort (glProgramUniform4uiv) | |
1819 | && FindProcShort (glProgramUniformMatrix2fv) | |
1820 | && FindProcShort (glProgramUniformMatrix3fv) | |
1821 | && FindProcShort (glProgramUniformMatrix4fv) | |
1822 | && FindProcShort (glProgramUniformMatrix2dv) | |
1823 | && FindProcShort (glProgramUniformMatrix3dv) | |
1824 | && FindProcShort (glProgramUniformMatrix4dv) | |
1825 | && FindProcShort (glProgramUniformMatrix2x3fv) | |
1826 | && FindProcShort (glProgramUniformMatrix3x2fv) | |
1827 | && FindProcShort (glProgramUniformMatrix2x4fv) | |
1828 | && FindProcShort (glProgramUniformMatrix4x2fv) | |
1829 | && FindProcShort (glProgramUniformMatrix3x4fv) | |
1830 | && FindProcShort (glProgramUniformMatrix4x3fv) | |
1831 | && FindProcShort (glProgramUniformMatrix2x3dv) | |
1832 | && FindProcShort (glProgramUniformMatrix3x2dv) | |
1833 | && FindProcShort (glProgramUniformMatrix2x4dv) | |
1834 | && FindProcShort (glProgramUniformMatrix4x2dv) | |
1835 | && FindProcShort (glProgramUniformMatrix3x4dv) | |
1836 | && FindProcShort (glProgramUniformMatrix4x3dv) | |
1837 | && FindProcShort (glValidateProgramPipeline) | |
1838 | && FindProcShort (glGetProgramPipelineInfoLog); | |
1839 | ||
1840 | // load GL_ARB_vertex_attrib_64bit (added to OpenGL 4.1 core) | |
1841 | const bool hasVertAttrib64bit = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_vertex_attrib_64bit")) | |
1842 | && FindProcShort (glVertexAttribL1d) | |
1843 | && FindProcShort (glVertexAttribL2d) | |
1844 | && FindProcShort (glVertexAttribL3d) | |
1845 | && FindProcShort (glVertexAttribL4d) | |
1846 | && FindProcShort (glVertexAttribL1dv) | |
1847 | && FindProcShort (glVertexAttribL2dv) | |
1848 | && FindProcShort (glVertexAttribL3dv) | |
1849 | && FindProcShort (glVertexAttribL4dv) | |
1850 | && FindProcShort (glVertexAttribLPointer) | |
1851 | && FindProcShort (glGetVertexAttribLdv); | |
1852 | ||
1853 | // load GL_ARB_viewport_array (added to OpenGL 4.1 core) | |
1854 | const bool hasViewportArray = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_viewport_array")) | |
1855 | && FindProcShort (glViewportArrayv) | |
1856 | && FindProcShort (glViewportIndexedf) | |
1857 | && FindProcShort (glViewportIndexedfv) | |
1858 | && FindProcShort (glScissorArrayv) | |
1859 | && FindProcShort (glScissorIndexed) | |
1860 | && FindProcShort (glScissorIndexedv) | |
1861 | && FindProcShort (glDepthRangeArrayv) | |
1862 | && FindProcShort (glDepthRangeIndexed) | |
1863 | && FindProcShort (glGetFloati_v) | |
1864 | && FindProcShort (glGetDoublei_v); | |
1865 | ||
1866 | has41 = IsGlGreaterEqual (4, 1) | |
1867 | && hasES2Compatibility | |
1868 | && hasGetProgramBinary | |
1869 | && hasSeparateShaderObjects | |
1870 | && hasVertAttrib64bit | |
1871 | && hasViewportArray; | |
1872 | ||
1873 | // load GL_ARB_base_instance (added to OpenGL 4.2 core) | |
1874 | const bool hasBaseInstance = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_base_instance")) | |
1875 | && FindProcShort (glDrawArraysInstancedBaseInstance) | |
1876 | && FindProcShort (glDrawElementsInstancedBaseInstance) | |
1877 | && FindProcShort (glDrawElementsInstancedBaseVertexBaseInstance); | |
1878 | ||
1879 | // load GL_ARB_transform_feedback_instanced (added to OpenGL 4.2 core) | |
1880 | const bool hasTrsfFeedbackInstanced = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_transform_feedback_instanced")) | |
1881 | && FindProcShort (glDrawTransformFeedbackInstanced) | |
1882 | && FindProcShort (glDrawTransformFeedbackStreamInstanced); | |
1883 | ||
1884 | // load GL_ARB_internalformat_query (added to OpenGL 4.2 core) | |
1885 | const bool hasInternalFormatQuery = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_internalformat_query")) | |
1886 | && FindProcShort (glGetInternalformativ); | |
1887 | ||
1888 | // load GL_ARB_shader_atomic_counters (added to OpenGL 4.2 core) | |
1889 | const bool hasShaderAtomicCounters = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_shader_atomic_counters")) | |
1890 | && FindProcShort (glGetActiveAtomicCounterBufferiv); | |
1891 | ||
1892 | // load GL_ARB_shader_image_load_store (added to OpenGL 4.2 core) | |
1893 | const bool hasShaderImgLoadStore = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_shader_image_load_store")) | |
1894 | && FindProcShort (glBindImageTexture) | |
1895 | && FindProcShort (glMemoryBarrier); | |
1896 | ||
1897 | // load GL_ARB_texture_storage (added to OpenGL 4.2 core) | |
1898 | const bool hasTextureStorage = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_texture_storage")) | |
1899 | && FindProcShort (glTexStorage1D) | |
1900 | && FindProcShort (glTexStorage2D) | |
c87535af | 1901 | && FindProcShort (glTexStorage3D); |
01ca42b2 | 1902 | |
1903 | has42 = IsGlGreaterEqual (4, 2) | |
1904 | && hasBaseInstance | |
1905 | && hasTrsfFeedbackInstanced | |
1906 | && hasInternalFormatQuery | |
1907 | && hasShaderAtomicCounters | |
1908 | && hasShaderImgLoadStore | |
1909 | && hasTextureStorage; | |
1910 | ||
1911 | has43 = IsGlGreaterEqual (4, 3) | |
1912 | && FindProcShort (glClearBufferData) | |
1913 | && FindProcShort (glClearBufferSubData) | |
1914 | && FindProcShort (glDispatchCompute) | |
1915 | && FindProcShort (glDispatchComputeIndirect) | |
1916 | && FindProcShort (glCopyImageSubData) | |
1917 | && FindProcShort (glFramebufferParameteri) | |
1918 | && FindProcShort (glGetFramebufferParameteriv) | |
1919 | && FindProcShort (glGetInternalformati64v) | |
1920 | && FindProcShort (glInvalidateTexSubImage) | |
1921 | && FindProcShort (glInvalidateTexImage) | |
1922 | && FindProcShort (glInvalidateBufferSubData) | |
1923 | && FindProcShort (glInvalidateBufferData) | |
1924 | && FindProcShort (glInvalidateFramebuffer) | |
1925 | && FindProcShort (glInvalidateSubFramebuffer) | |
1926 | && FindProcShort (glMultiDrawArraysIndirect) | |
1927 | && FindProcShort (glMultiDrawElementsIndirect) | |
1928 | && FindProcShort (glGetProgramInterfaceiv) | |
1929 | && FindProcShort (glGetProgramResourceIndex) | |
1930 | && FindProcShort (glGetProgramResourceName) | |
1931 | && FindProcShort (glGetProgramResourceiv) | |
1932 | && FindProcShort (glGetProgramResourceLocation) | |
1933 | && FindProcShort (glGetProgramResourceLocationIndex) | |
1934 | && FindProcShort (glShaderStorageBlockBinding) | |
1935 | && FindProcShort (glTexBufferRange) | |
1936 | && FindProcShort (glTexStorage2DMultisample) | |
1937 | && FindProcShort (glTexStorage3DMultisample) | |
1938 | && FindProcShort (glTextureView) | |
1939 | && FindProcShort (glBindVertexBuffer) | |
1940 | && FindProcShort (glVertexAttribFormat) | |
1941 | && FindProcShort (glVertexAttribIFormat) | |
1942 | && FindProcShort (glVertexAttribLFormat) | |
1943 | && FindProcShort (glVertexAttribBinding) | |
1944 | && FindProcShort (glVertexBindingDivisor) | |
1945 | && FindProcShort (glDebugMessageControl) | |
1946 | && FindProcShort (glDebugMessageInsert) | |
1947 | && FindProcShort (glDebugMessageCallback) | |
1948 | && FindProcShort (glGetDebugMessageLog) | |
1949 | && FindProcShort (glPushDebugGroup) | |
1950 | && FindProcShort (glPopDebugGroup) | |
1951 | && FindProcShort (glObjectLabel) | |
1952 | && FindProcShort (glGetObjectLabel) | |
1953 | && FindProcShort (glObjectPtrLabel) | |
1954 | && FindProcShort (glGetObjectPtrLabel); | |
1955 | ||
1956 | // load GL_ARB_clear_texture (added to OpenGL 4.4 core) | |
1957 | bool arbTexClear = (IsGlGreaterEqual (4, 4) || CheckExtension ("GL_ARB_clear_texture")) | |
1958 | && FindProcShort (glClearTexImage) | |
1959 | && FindProcShort (glClearTexSubImage); | |
1960 | ||
1961 | has44 = IsGlGreaterEqual (4, 4) | |
1962 | && arbTexClear | |
1963 | && FindProcShort (glBufferStorage) | |
1964 | && FindProcShort (glBindBuffersBase) | |
1965 | && FindProcShort (glBindBuffersRange) | |
1966 | && FindProcShort (glBindTextures) | |
1967 | && FindProcShort (glBindSamplers) | |
1968 | && FindProcShort (glBindImageTextures) | |
1969 | && FindProcShort (glBindVertexBuffers); | |
1970 | ||
5e27df78 | 1971 | // initialize TBO extension (ARB) |
01ca42b2 | 1972 | if (!has31 |
1973 | && CheckExtension ("GL_ARB_texture_buffer_object") | |
1974 | && FindProc ("glTexBufferARB", myFuncs->glTexBuffer)) | |
5e27df78 | 1975 | { |
01ca42b2 | 1976 | arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs)); |
5e27df78 | 1977 | } |
25ef750e | 1978 | arbTboRGB32 = CheckExtension ("GL_ARB_texture_buffer_object_rgb32"); |
5e27df78 | 1979 | |
1980 | // initialize hardware instancing extension (ARB) | |
01ca42b2 | 1981 | if (!has31 |
1982 | && CheckExtension ("GL_ARB_draw_instanced") | |
1983 | && FindProc ("glDrawArraysInstancedARB", myFuncs->glDrawArraysInstanced) | |
1984 | && FindProc ("glDrawElementsInstancedARB", myFuncs->glDrawElementsInstanced)) | |
5e27df78 | 1985 | { |
01ca42b2 | 1986 | arbIns = (OpenGl_ArbIns* )(&(*myFuncs)); |
5e27df78 | 1987 | } |
1988 | ||
01ca42b2 | 1989 | // initialize FBO extension (ARB) |
1990 | if (hasFBO) | |
2166f0fa | 1991 | { |
b86bb3df | 1992 | arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs)); |
1993 | arbFBOBlit = (OpenGl_ArbFBOBlit* )(&(*myFuncs)); | |
01ca42b2 | 1994 | extPDS = Standard_True; // extension for EXT, but part of ARB |
2166f0fa | 1995 | } |
5f8b738e | 1996 | |
37eb4787 | 1997 | // initialize GS extension (EXT) |
01ca42b2 | 1998 | if (CheckExtension ("GL_EXT_geometry_shader4") |
1999 | && FindProcShort (glProgramParameteriEXT)) | |
37eb4787 | 2000 | { |
01ca42b2 | 2001 | extGS = (OpenGl_ExtGS* )(&(*myFuncs)); |
37eb4787 | 2002 | } |
2003 | ||
25ef750e | 2004 | // initialize bindless texture extension (ARB) |
2005 | if (CheckExtension ("GL_ARB_bindless_texture") | |
2006 | && FindProcShort (glGetTextureHandleARB) | |
2007 | && FindProcShort (glGetTextureSamplerHandleARB) | |
2008 | && FindProcShort (glMakeTextureHandleResidentARB) | |
2009 | && FindProcShort (glMakeTextureHandleNonResidentARB) | |
2010 | && FindProcShort (glGetImageHandleARB) | |
2011 | && FindProcShort (glMakeImageHandleResidentARB) | |
2012 | && FindProcShort (glMakeImageHandleNonResidentARB) | |
2013 | && FindProcShort (glUniformHandleui64ARB) | |
2014 | && FindProcShort (glUniformHandleui64vARB) | |
2015 | && FindProcShort (glProgramUniformHandleui64ARB) | |
2016 | && FindProcShort (glProgramUniformHandleui64vARB) | |
2017 | && FindProcShort (glIsTextureHandleResidentARB) | |
2018 | && FindProcShort (glIsImageHandleResidentARB) | |
2019 | && FindProcShort (glVertexAttribL1ui64ARB) | |
2020 | && FindProcShort (glVertexAttribL1ui64vARB) | |
2021 | && FindProcShort (glGetVertexAttribLui64vARB)) | |
2022 | { | |
2023 | arbTexBindless = (OpenGl_ArbTexBindless* )(&(*myFuncs)); | |
2024 | } | |
2025 | ||
01ca42b2 | 2026 | if (!has12) |
86325709 | 2027 | { |
ee51a9fe | 2028 | checkWrongVersion (1, 2); |
86325709 | 2029 | myGlVerMajor = 1; |
2030 | myGlVerMinor = 1; | |
2031 | return; | |
5f8b738e | 2032 | } |
01ca42b2 | 2033 | else if (!has13) |
5f8b738e | 2034 | { |
ee51a9fe | 2035 | checkWrongVersion (1, 3); |
01ca42b2 | 2036 | myGlVerMajor = 1; |
2037 | myGlVerMinor = 2; | |
2038 | return; | |
5f8b738e | 2039 | } |
01ca42b2 | 2040 | else if (!has14) |
5f8b738e | 2041 | { |
ee51a9fe | 2042 | checkWrongVersion (1, 4); |
86325709 | 2043 | myGlVerMajor = 1; |
01ca42b2 | 2044 | myGlVerMinor = 3; |
86325709 | 2045 | return; |
5f8b738e | 2046 | } |
01ca42b2 | 2047 | else if (!has15) |
86325709 | 2048 | { |
ee51a9fe | 2049 | checkWrongVersion (1, 5); |
01ca42b2 | 2050 | myGlVerMajor = 1; |
2051 | myGlVerMinor = 4; | |
2052 | return; | |
5f8b738e | 2053 | } |
4e1523ef | 2054 | if (!isCoreProfile) |
2055 | { | |
2056 | core15 = (OpenGl_GlCore15* )(&(*myFuncs)); | |
2057 | } | |
01ca42b2 | 2058 | core15fwd = (OpenGl_GlCore15Fwd* )(&(*myFuncs)); |
2059 | ||
2060 | if (!has20) | |
86325709 | 2061 | { |
ee51a9fe | 2062 | checkWrongVersion (2, 0); |
2063 | myGlVerMajor = 1; | |
2064 | myGlVerMinor = 5; | |
2065 | return; | |
2066 | } | |
2067 | ||
2068 | const char* aGlslVer = (const char* )::glGetString (GL_SHADING_LANGUAGE_VERSION); | |
2069 | if (aGlslVer == NULL | |
2070 | || *aGlslVer == '\0') | |
2071 | { | |
2072 | // broken context has been detected | |
2073 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() | |
2074 | + "Error! OpenGL context reports version " | |
2075 | + myGlVerMajor + "." + myGlVerMinor | |
2076 | + " but reports wrong GLSL version"; | |
2077 | PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, | |
2078 | GL_DEBUG_TYPE_ERROR_ARB, | |
2079 | 0, | |
2080 | GL_DEBUG_SEVERITY_HIGH_ARB, | |
2081 | aMsg); | |
86325709 | 2082 | myGlVerMajor = 1; |
01ca42b2 | 2083 | myGlVerMinor = 5; |
86325709 | 2084 | return; |
5f8b738e | 2085 | } |
01ca42b2 | 2086 | |
4e1523ef | 2087 | if (!isCoreProfile) |
2088 | { | |
2089 | core20 = (OpenGl_GlCore20* )(&(*myFuncs)); | |
2090 | } | |
01ca42b2 | 2091 | core20fwd = (OpenGl_GlCore20Fwd* )(&(*myFuncs)); |
2092 | ||
2093 | if (!has21) | |
5f8b738e | 2094 | { |
ee51a9fe | 2095 | checkWrongVersion (2, 1); |
01ca42b2 | 2096 | myGlVerMajor = 2; |
2097 | myGlVerMinor = 0; | |
2098 | return; | |
86325709 | 2099 | } |
01ca42b2 | 2100 | |
2101 | if (!has30) | |
86325709 | 2102 | { |
ee51a9fe | 2103 | checkWrongVersion (3, 0); |
01ca42b2 | 2104 | myGlVerMajor = 2; |
2105 | myGlVerMinor = 1; | |
86325709 | 2106 | return; |
2107 | } | |
01ca42b2 | 2108 | |
2109 | if (!has31) | |
2110 | { | |
ee51a9fe | 2111 | checkWrongVersion (3, 1); |
01ca42b2 | 2112 | myGlVerMajor = 3; |
2113 | myGlVerMinor = 0; | |
2114 | return; | |
2115 | } | |
2116 | arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs)); | |
2117 | arbIns = (OpenGl_ArbIns* )(&(*myFuncs)); | |
2118 | ||
2119 | if (!has32) | |
86325709 | 2120 | { |
ee51a9fe | 2121 | checkWrongVersion (3, 2); |
01ca42b2 | 2122 | myGlVerMajor = 3; |
2123 | myGlVerMinor = 1; | |
2124 | return; | |
86325709 | 2125 | } |
4e1523ef | 2126 | core32 = (OpenGl_GlCore32* )(&(*myFuncs)); |
2127 | if (isCoreProfile) | |
2128 | { | |
2129 | core32->glGenVertexArrays (1, &myDefaultVao); | |
2130 | } | |
2131 | else | |
2132 | { | |
2133 | core32back = (OpenGl_GlCore32Back* )(&(*myFuncs)); | |
2134 | } | |
01ca42b2 | 2135 | |
2136 | if (!has33) | |
86325709 | 2137 | { |
ee51a9fe | 2138 | checkWrongVersion (3, 3); |
01ca42b2 | 2139 | myGlVerMajor = 3; |
2140 | myGlVerMinor = 2; | |
2141 | return; | |
86325709 | 2142 | } |
4e1523ef | 2143 | core33 = (OpenGl_GlCore33* )(&(*myFuncs)); |
2144 | if (!isCoreProfile) | |
2145 | { | |
2146 | core33back = (OpenGl_GlCore33Back* )(&(*myFuncs)); | |
2147 | } | |
25ef750e | 2148 | |
2149 | // initialize sampler object | |
2150 | myTexSampler = new OpenGl_Sampler(); | |
2151 | myTexSampler->Init (*this); | |
01ca42b2 | 2152 | |
2153 | if (!has40) | |
86325709 | 2154 | { |
ee51a9fe | 2155 | checkWrongVersion (4, 0); |
01ca42b2 | 2156 | myGlVerMajor = 3; |
2157 | myGlVerMinor = 3; | |
2158 | return; | |
2159 | } | |
25ef750e | 2160 | arbTboRGB32 = Standard_True; // in core since OpenGL 4.0 |
01ca42b2 | 2161 | |
2162 | if (!has41) | |
2163 | { | |
ee51a9fe | 2164 | checkWrongVersion (4, 1); |
01ca42b2 | 2165 | myGlVerMajor = 4; |
2166 | myGlVerMinor = 0; | |
2167 | return; | |
2168 | } | |
4e1523ef | 2169 | core41 = (OpenGl_GlCore41* )(&(*myFuncs)); |
2170 | if (!isCoreProfile) | |
2171 | { | |
2172 | core41back = (OpenGl_GlCore41Back* )(&(*myFuncs)); | |
2173 | } | |
01ca42b2 | 2174 | |
2175 | if(!has42) | |
2176 | { | |
ee51a9fe | 2177 | checkWrongVersion (4, 2); |
01ca42b2 | 2178 | myGlVerMajor = 4; |
2179 | myGlVerMinor = 1; | |
2180 | return; | |
2181 | } | |
4e1523ef | 2182 | core42 = (OpenGl_GlCore42* )(&(*myFuncs)); |
2183 | if (!isCoreProfile) | |
2184 | { | |
2185 | core42back = (OpenGl_GlCore42Back* )(&(*myFuncs)); | |
2186 | } | |
01ca42b2 | 2187 | |
4e1523ef | 2188 | if (!has43) |
01ca42b2 | 2189 | { |
ee51a9fe | 2190 | checkWrongVersion (4, 3); |
01ca42b2 | 2191 | myGlVerMajor = 4; |
2192 | myGlVerMinor = 2; | |
2193 | return; | |
2194 | } | |
4e1523ef | 2195 | core43 = (OpenGl_GlCore43* )(&(*myFuncs)); |
2196 | if (!isCoreProfile) | |
2197 | { | |
2198 | core43back = (OpenGl_GlCore43Back* )(&(*myFuncs)); | |
2199 | } | |
01ca42b2 | 2200 | |
2201 | if (!has44) | |
2202 | { | |
ee51a9fe | 2203 | checkWrongVersion (4, 4); |
01ca42b2 | 2204 | myGlVerMajor = 4; |
2205 | myGlVerMinor = 3; | |
2206 | return; | |
5f8b738e | 2207 | } |
4e1523ef | 2208 | core44 = (OpenGl_GlCore44* )(&(*myFuncs)); |
2209 | if (!isCoreProfile) | |
2210 | { | |
2211 | core44back = (OpenGl_GlCore44Back* )(&(*myFuncs)); | |
2212 | } | |
ca3c13d1 | 2213 | #endif |
2166f0fa | 2214 | } |
f0430952 | 2215 | |
2216 | // ======================================================================= | |
2217 | // function : MemoryInfo | |
2218 | // purpose : | |
2219 | // ======================================================================= | |
2220 | Standard_Size OpenGl_Context::AvailableMemory() const | |
2221 | { | |
ca3c13d1 | 2222 | #if !defined(GL_ES_VERSION_2_0) |
f0430952 | 2223 | if (atiMem) |
2224 | { | |
2225 | // this is actually information for VBO pool | |
2226 | // however because pools are mostly shared | |
2227 | // it can be used for total GPU memory estimations | |
2228 | GLint aMemInfo[4]; | |
2229 | aMemInfo[0] = 0; | |
2230 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aMemInfo); | |
2231 | // returned value is in KiB, however this maybe changed in future | |
2232 | return Standard_Size(aMemInfo[0]) * 1024; | |
2233 | } | |
2234 | else if (nvxMem) | |
2235 | { | |
2236 | // current available dedicated video memory (in KiB), currently unused GPU memory | |
2237 | GLint aMemInfo = 0; | |
2238 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aMemInfo); | |
2239 | return Standard_Size(aMemInfo) * 1024; | |
2240 | } | |
ca3c13d1 | 2241 | #endif |
f0430952 | 2242 | return 0; |
2243 | } | |
2244 | ||
2245 | // ======================================================================= | |
2246 | // function : MemoryInfo | |
2247 | // purpose : | |
2248 | // ======================================================================= | |
2249 | TCollection_AsciiString OpenGl_Context::MemoryInfo() const | |
2250 | { | |
2251 | TCollection_AsciiString anInfo; | |
ca3c13d1 | 2252 | #if !defined(GL_ES_VERSION_2_0) |
f0430952 | 2253 | if (atiMem) |
2254 | { | |
2255 | GLint aValues[4]; | |
2256 | memset (aValues, 0, sizeof(aValues)); | |
2257 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aValues); | |
2258 | ||
2259 | // total memory free in the pool | |
2260 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValues[0] / 1024) + " MiB\n"; | |
2261 | ||
2262 | // largest available free block in the pool | |
2263 | anInfo += TCollection_AsciiString (" Largest free block: ") + (aValues[1] / 1024) + " MiB\n"; | |
2264 | if (aValues[2] != aValues[0]) | |
2265 | { | |
2266 | // total auxiliary memory free | |
2267 | anInfo += TCollection_AsciiString (" Free memory: ") + (aValues[2] / 1024) + " MiB\n"; | |
2268 | } | |
2269 | } | |
2270 | else if (nvxMem) | |
2271 | { | |
2272 | //current available dedicated video memory (in KiB), currently unused GPU memory | |
2273 | GLint aValue = 0; | |
2274 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aValue); | |
2275 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValue / 1024) + " MiB\n"; | |
2276 | ||
2277 | // dedicated video memory, total size (in KiB) of the GPU memory | |
2278 | GLint aDedicated = 0; | |
2279 | glGetIntegerv (GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &aDedicated); | |
2280 | anInfo += TCollection_AsciiString (" GPU memory: ") + (aDedicated / 1024) + " MiB\n"; | |
2281 | ||
2282 | // total available memory, total size (in KiB) of the memory available for allocations | |
2283 | glGetIntegerv (GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &aValue); | |
2284 | if (aValue != aDedicated) | |
2285 | { | |
2286 | // different only for special configurations | |
2287 | anInfo += TCollection_AsciiString (" Total memory: ") + (aValue / 1024) + " MiB\n"; | |
2288 | } | |
2289 | } | |
ca3c13d1 | 2290 | #endif |
f0430952 | 2291 | return anInfo; |
2292 | } | |
5e27df78 | 2293 | |
2294 | ||
2295 | // ======================================================================= | |
2296 | // function : GetResource | |
2297 | // purpose : | |
2298 | // ======================================================================= | |
2299 | const Handle(OpenGl_Resource)& OpenGl_Context::GetResource (const TCollection_AsciiString& theKey) const | |
2300 | { | |
2301 | return mySharedResources->IsBound (theKey) ? mySharedResources->Find (theKey) : NULL_GL_RESOURCE; | |
2302 | } | |
2303 | ||
2304 | // ======================================================================= | |
2305 | // function : ShareResource | |
2306 | // purpose : | |
2307 | // ======================================================================= | |
2308 | Standard_Boolean OpenGl_Context::ShareResource (const TCollection_AsciiString& theKey, | |
2309 | const Handle(OpenGl_Resource)& theResource) | |
2310 | { | |
2311 | if (theKey.IsEmpty() || theResource.IsNull()) | |
2312 | { | |
2313 | return Standard_False; | |
2314 | } | |
2315 | return mySharedResources->Bind (theKey, theResource); | |
2316 | } | |
2317 | ||
2318 | // ======================================================================= | |
2319 | // function : ReleaseResource | |
2320 | // purpose : | |
2321 | // ======================================================================= | |
a174a3c5 | 2322 | void OpenGl_Context::ReleaseResource (const TCollection_AsciiString& theKey, |
2323 | const Standard_Boolean theToDelay) | |
5e27df78 | 2324 | { |
2325 | if (!mySharedResources->IsBound (theKey)) | |
2326 | { | |
2327 | return; | |
2328 | } | |
2329 | const Handle(OpenGl_Resource)& aRes = mySharedResources->Find (theKey); | |
2330 | if (aRes->GetRefCount() > 1) | |
2331 | { | |
2332 | return; | |
2333 | } | |
2334 | ||
a174a3c5 | 2335 | if (theToDelay) |
2336 | { | |
2337 | myDelayed->Bind (theKey, 1); | |
2338 | } | |
2339 | else | |
2340 | { | |
2341 | aRes->Release (this); | |
2342 | mySharedResources->UnBind (theKey); | |
2343 | } | |
5e27df78 | 2344 | } |
2345 | ||
2346 | // ======================================================================= | |
2347 | // function : DelayedRelease | |
2348 | // purpose : | |
2349 | // ======================================================================= | |
2350 | void OpenGl_Context::DelayedRelease (Handle(OpenGl_Resource)& theResource) | |
2351 | { | |
3125ebb6 | 2352 | myUnusedResources->Prepend (theResource); |
5e27df78 | 2353 | theResource.Nullify(); |
2354 | } | |
2355 | ||
2356 | // ======================================================================= | |
2357 | // function : ReleaseDelayed | |
2358 | // purpose : | |
2359 | // ======================================================================= | |
2360 | void OpenGl_Context::ReleaseDelayed() | |
2361 | { | |
a174a3c5 | 2362 | // release queued elements |
3125ebb6 | 2363 | while (!myUnusedResources->IsEmpty()) |
5e27df78 | 2364 | { |
3125ebb6 | 2365 | myUnusedResources->First()->Release (this); |
2366 | myUnusedResources->RemoveFirst(); | |
5e27df78 | 2367 | } |
a174a3c5 | 2368 | |
265d4508 | 2369 | // release delayed shared resources |
a174a3c5 | 2370 | NCollection_Vector<TCollection_AsciiString> aDeadList; |
2371 | for (NCollection_DataMap<TCollection_AsciiString, Standard_Integer>::Iterator anIter (*myDelayed); | |
2372 | anIter.More(); anIter.Next()) | |
2373 | { | |
2374 | if (++anIter.ChangeValue() <= 2) | |
2375 | { | |
2376 | continue; // postpone release one more frame to ensure noone use it periodically | |
2377 | } | |
2378 | ||
2379 | const TCollection_AsciiString& aKey = anIter.Key(); | |
2380 | if (!mySharedResources->IsBound (aKey)) | |
2381 | { | |
2382 | // mixed unshared strategy delayed/undelayed was used! | |
2383 | aDeadList.Append (aKey); | |
2384 | continue; | |
2385 | } | |
2386 | ||
2387 | Handle(OpenGl_Resource)& aRes = mySharedResources->ChangeFind (aKey); | |
2388 | if (aRes->GetRefCount() > 1) | |
2389 | { | |
2390 | // should be only 1 instance in mySharedResources | |
2391 | // if not - resource was reused again | |
2392 | aDeadList.Append (aKey); | |
2393 | continue; | |
2394 | } | |
2395 | ||
2396 | // release resource if no one requiested it more than 2 redraw calls | |
2397 | aRes->Release (this); | |
2398 | mySharedResources->UnBind (aKey); | |
2399 | aDeadList.Append (aKey); | |
2400 | } | |
2401 | ||
2402 | for (Standard_Integer anIter = 0; anIter < aDeadList.Length(); ++anIter) | |
2403 | { | |
2404 | myDelayed->UnBind (aDeadList.Value (anIter)); | |
2405 | } | |
5e27df78 | 2406 | } |
7d3e64ef | 2407 | |
2408 | // ======================================================================= | |
2409 | // function : BindProgram | |
2410 | // purpose : | |
2411 | // ======================================================================= | |
8625ef7e | 2412 | Standard_Boolean OpenGl_Context::BindProgram (const Handle(OpenGl_ShaderProgram)& theProgram) |
7d3e64ef | 2413 | { |
8625ef7e | 2414 | if (core20fwd == NULL) |
2415 | { | |
2416 | return Standard_False; | |
2417 | } | |
2418 | ||
7d3e64ef | 2419 | if (theProgram.IsNull() |
2420 | || !theProgram->IsValid()) | |
2421 | { | |
2422 | if (!myActiveProgram.IsNull()) | |
2423 | { | |
2424 | core20fwd->glUseProgram (OpenGl_ShaderProgram::NO_PROGRAM); | |
2425 | myActiveProgram.Nullify(); | |
2426 | } | |
8625ef7e | 2427 | return Standard_False; |
7d3e64ef | 2428 | } |
2429 | ||
2430 | myActiveProgram = theProgram; | |
2431 | core20fwd->glUseProgram (theProgram->ProgramId()); | |
8625ef7e | 2432 | return Standard_True; |
2433 | } | |
2434 | ||
4e1523ef | 2435 | // ======================================================================= |
2436 | // function : BindDefaultVao | |
2437 | // purpose : | |
2438 | // ======================================================================= | |
2439 | void OpenGl_Context::BindDefaultVao() | |
2440 | { | |
2441 | #if !defined(GL_ES_VERSION_2_0) | |
2442 | if (myDefaultVao == 0 | |
2443 | || core32 == NULL) | |
2444 | { | |
2445 | return; | |
2446 | } | |
2447 | ||
2448 | core32->glBindVertexArray (myDefaultVao); | |
2449 | #endif | |
2450 | } | |
2451 | ||
a2e4f780 | 2452 | // ======================================================================= |
2453 | // function : SetDefaultFrameBuffer | |
2454 | // purpose : | |
2455 | // ======================================================================= | |
2456 | Handle(OpenGl_FrameBuffer) OpenGl_Context::SetDefaultFrameBuffer (const Handle(OpenGl_FrameBuffer)& theFbo) | |
2457 | { | |
2458 | Handle(OpenGl_FrameBuffer) aFbo = myDefaultFbo; | |
2459 | myDefaultFbo = theFbo; | |
2460 | return aFbo; | |
2461 | } | |
2462 | ||
8625ef7e | 2463 | // ======================================================================= |
2464 | // function : SetColor4fv | |
2465 | // purpose : | |
2466 | // ======================================================================= | |
2467 | void OpenGl_Context::SetColor4fv (const OpenGl_Vec4& theColor) | |
2468 | { | |
2469 | if (!myActiveProgram.IsNull()) | |
2470 | { | |
2471 | myActiveProgram->SetUniform (this, myActiveProgram->GetStateLocation (OpenGl_OCCT_COLOR), theColor); | |
2472 | } | |
2473 | #if !defined(GL_ES_VERSION_2_0) | |
2474 | else if (core11 != NULL) | |
2475 | { | |
2476 | core11->glColor4fv (theColor.GetData()); | |
2477 | } | |
2478 | #endif | |
2479 | } | |
2480 | ||
ac116c22 | 2481 | // ======================================================================= |
2482 | // function : SetTypeOfLine | |
2483 | // purpose : | |
2484 | // ======================================================================= | |
2485 | void OpenGl_Context::SetTypeOfLine (const Aspect_TypeOfLine theType, | |
2486 | const Standard_ShortReal theFactor) | |
2487 | { | |
2488 | Standard_Integer aPattern = 0xFFFF; | |
2489 | switch (theType) | |
2490 | { | |
2491 | case Aspect_TOL_DASH: | |
2492 | { | |
2493 | aPattern = 0xFFC0; | |
2494 | break; | |
2495 | } | |
2496 | case Aspect_TOL_DOT: | |
2497 | { | |
2498 | aPattern = 0xCCCC; | |
2499 | break; | |
2500 | } | |
2501 | case Aspect_TOL_DOTDASH: | |
2502 | { | |
2503 | aPattern = 0xFF18; | |
2504 | break; | |
2505 | } | |
2506 | case Aspect_TOL_SOLID: | |
2507 | { | |
2508 | aPattern = 0xFFFF; | |
2509 | break; | |
2510 | } | |
2511 | case Aspect_TOL_USERDEFINED: | |
2512 | { | |
2513 | aPattern = 0xFF24; | |
2514 | break; | |
2515 | } | |
2516 | } | |
2517 | ||
c04c30b3 | 2518 | if (!myActiveProgram.IsNull()) |
ac116c22 | 2519 | { |
2520 | myActiveProgram->SetUniform (this, "uPattern", aPattern); | |
2521 | myActiveProgram->SetUniform (this, "uFactor", theFactor); | |
2522 | return; | |
2523 | } | |
2524 | ||
2525 | #if !defined(GL_ES_VERSION_2_0) | |
2526 | if (theType != Aspect_TOL_SOLID) | |
2527 | { | |
2528 | #ifdef HAVE_GL2PS | |
2529 | if (IsFeedback()) | |
2530 | { | |
2531 | gl2psEnable (GL2PS_LINE_STIPPLE); | |
2532 | } | |
2533 | #endif | |
2534 | ||
2535 | if (core11 != NULL) | |
2536 | { | |
2537 | core11fwd->glEnable (GL_LINE_STIPPLE); | |
2538 | ||
2539 | core11->glLineStipple (static_cast<GLint> (theFactor), | |
2540 | static_cast<GLushort> (aPattern)); | |
2541 | } | |
2542 | } | |
2543 | else | |
2544 | { | |
2545 | if (core11 != NULL) | |
2546 | { | |
2547 | core11fwd->glDisable (GL_LINE_STIPPLE); | |
2548 | } | |
2549 | ||
2550 | #ifdef HAVE_GL2PS | |
2551 | if (IsFeedback()) | |
2552 | { | |
2553 | gl2psDisable (GL2PS_LINE_STIPPLE); | |
2554 | } | |
2555 | #endif | |
2556 | } | |
2557 | #endif | |
2558 | } | |
2559 | ||
2560 | // ======================================================================= | |
2561 | // function : SetLineWidth | |
2562 | // purpose : | |
2563 | // ======================================================================= | |
2564 | void OpenGl_Context::SetLineWidth (const Standard_ShortReal theWidth) | |
2565 | { | |
2566 | if (core11 != NULL) | |
2567 | { | |
2568 | // glLineWidth() is still defined within Core Profile, but has no effect with values != 1.0f | |
2569 | core11fwd->glLineWidth (theWidth); | |
2570 | } | |
2571 | #ifdef HAVE_GL2PS | |
2572 | if (IsFeedback()) | |
2573 | { | |
2574 | gl2psLineWidth (theWidth); | |
2575 | } | |
2576 | #endif | |
2577 | } | |
2578 | ||
8625ef7e | 2579 | // ======================================================================= |
2580 | // function : SetPointSize | |
2581 | // purpose : | |
2582 | // ======================================================================= | |
2583 | void OpenGl_Context::SetPointSize (const Standard_ShortReal theSize) | |
2584 | { | |
2585 | if (!myActiveProgram.IsNull()) | |
2586 | { | |
2587 | myActiveProgram->SetUniform (this, myActiveProgram->GetStateLocation (OpenGl_OCCT_POINT_SIZE), theSize); | |
2588 | #if !defined(GL_ES_VERSION_2_0) | |
2589 | //myContext->core11fwd->glEnable (GL_VERTEX_PROGRAM_POINT_SIZE); | |
2590 | #endif | |
2591 | } | |
2592 | #if !defined(GL_ES_VERSION_2_0) | |
2593 | //else | |
2594 | { | |
2595 | core11fwd->glPointSize (theSize); | |
2596 | if (core20fwd != NULL) | |
2597 | { | |
2598 | //myContext->core11fwd->glDisable (GL_VERTEX_PROGRAM_POINT_SIZE); | |
2599 | } | |
2600 | } | |
2601 | #endif | |
7d3e64ef | 2602 | } |
7d9e854b | 2603 | |
2604 | // ======================================================================= | |
2605 | // function : SetGlNormalizeEnabled | |
2606 | // purpose : | |
2607 | // ======================================================================= | |
2608 | Standard_Boolean OpenGl_Context::SetGlNormalizeEnabled (Standard_Boolean isEnabled) | |
2609 | { | |
2610 | if (isEnabled == myIsGlNormalizeEnabled) | |
2611 | { | |
2612 | return myIsGlNormalizeEnabled; | |
2613 | } | |
2614 | ||
2615 | Standard_Boolean anOldGlNormalize = myIsGlNormalizeEnabled; | |
2616 | ||
2617 | myIsGlNormalizeEnabled = isEnabled; | |
2618 | ||
2619 | #if !defined(GL_ES_VERSION_2_0) | |
2620 | if (isEnabled) | |
2621 | { | |
2622 | glEnable (GL_NORMALIZE); | |
2623 | } | |
2624 | else | |
2625 | { | |
2626 | glDisable (GL_NORMALIZE); | |
2627 | } | |
2628 | #endif | |
2629 | ||
2630 | return anOldGlNormalize; | |
2631 | } | |
c827ea3a | 2632 | |
2633 | // ======================================================================= | |
2634 | // function : ApplyModelWorldMatrix | |
2635 | // purpose : | |
2636 | // ======================================================================= | |
2637 | void OpenGl_Context::ApplyModelWorldMatrix() | |
2638 | { | |
2639 | #if !defined(GL_ES_VERSION_2_0) | |
2640 | if (core11 != NULL) | |
2641 | { | |
2642 | core11->glMatrixMode (GL_MODELVIEW); | |
2643 | core11->glLoadMatrixf (ModelWorldState.Current()); | |
2644 | } | |
2645 | #endif | |
2646 | ||
2647 | if (!myShaderManager->IsEmpty()) | |
2648 | { | |
2649 | myShaderManager->UpdateModelWorldStateTo (ModelWorldState.Current()); | |
2650 | } | |
2651 | } | |
2652 | ||
2653 | // ======================================================================= | |
2654 | // function : ApplyWorldViewMatrix | |
2655 | // purpose : | |
2656 | // ======================================================================= | |
2657 | void OpenGl_Context::ApplyWorldViewMatrix() | |
2658 | { | |
2659 | #if !defined(GL_ES_VERSION_2_0) | |
2660 | if (core11 != NULL) | |
2661 | { | |
2662 | core11->glMatrixMode (GL_MODELVIEW); | |
2663 | core11->glLoadMatrixf (WorldViewState.Current()); | |
2664 | } | |
2665 | #endif | |
2666 | ||
2667 | if (!myShaderManager->IsEmpty()) | |
2668 | { | |
2669 | myShaderManager->UpdateWorldViewStateTo (WorldViewState.Current()); | |
2670 | } | |
2671 | } | |
2672 | ||
2673 | // ======================================================================= | |
2674 | // function : ApplyModelViewMatrix | |
2675 | // purpose : | |
2676 | // ======================================================================= | |
2677 | void OpenGl_Context::ApplyModelViewMatrix() | |
2678 | { | |
2679 | #if !defined(GL_ES_VERSION_2_0) | |
2680 | if (core11 != NULL) | |
2681 | { | |
2682 | OpenGl_Mat4 aModelView = WorldViewState.Current() * ModelWorldState.Current(); | |
2683 | core11->glMatrixMode (GL_MODELVIEW); | |
2684 | core11->glLoadMatrixf (aModelView.GetData()); | |
2685 | } | |
2686 | #endif | |
2687 | ||
2688 | if (!myShaderManager->IsEmpty()) | |
2689 | { | |
2690 | myShaderManager->UpdateModelWorldStateTo (ModelWorldState.Current()); | |
2691 | myShaderManager->UpdateWorldViewStateTo (WorldViewState.Current()); | |
2692 | } | |
2693 | } | |
2694 | ||
2695 | // ======================================================================= | |
2696 | // function : ApplyProjectionMatrix | |
2697 | // purpose : | |
2698 | // ======================================================================= | |
2699 | void OpenGl_Context::ApplyProjectionMatrix() | |
2700 | { | |
2701 | #if !defined(GL_ES_VERSION_2_0) | |
2702 | if (core11 != NULL) | |
2703 | { | |
2704 | core11->glMatrixMode (GL_PROJECTION); | |
2705 | core11->glLoadMatrixf (ProjectionState.Current().GetData()); | |
2706 | } | |
2707 | #endif | |
2708 | ||
2709 | if (!myShaderManager->IsEmpty()) | |
2710 | { | |
2711 | myShaderManager->UpdateProjectionStateTo (ProjectionState.Current()); | |
2712 | } | |
2713 | } |