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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> |
299e0ab9 | 32 | #include <OpenGl_Workspace.hxx> |
33 | #include <OpenGl_AspectFace.hxx> | |
79f4f036 | 34 | #include <Graphic3d_TransformUtils.hxx> |
5f8b738e | 35 | |
cbf18624 | 36 | #include <Message_Messenger.hxx> |
30f0ad28 | 37 | |
a174a3c5 | 38 | #include <NCollection_Vector.hxx> |
39 | ||
2bd4c032 | 40 | #include <Standard_ProgramError.hxx> |
41 | ||
f5f4ebd0 | 42 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Context,Standard_Transient) |
43 | ||
da8bb41d | 44 | #if defined(HAVE_EGL) |
45 | #include <EGL/egl.h> | |
46 | #ifdef _MSC_VER | |
47 | #pragma comment(lib, "libEGL.lib") | |
48 | #endif | |
49 | #elif defined(_WIN32) | |
5f8b738e | 50 | // |
51 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
52 | #include <dlfcn.h> | |
f978241f | 53 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
54 | // | |
55 | #else | |
56 | #include <OpenGL/OpenGL.h> | |
57 | #endif | |
5f8b738e | 58 | #else |
59 | #include <GL/glx.h> // glXGetProcAddress() | |
60 | #endif | |
61 | ||
ac116c22 | 62 | #ifdef HAVE_GL2PS |
63 | #include <gl2ps.h> | |
64 | #ifdef _MSC_VER | |
65 | #pragma comment (lib, "gl2ps.lib") | |
66 | #endif | |
67 | #endif | |
68 | ||
2166f0fa | 69 | |
5e27df78 | 70 | namespace |
71 | { | |
72 | static const Handle(OpenGl_Resource) NULL_GL_RESOURCE; | |
01ca42b2 | 73 | } |
5e27df78 | 74 | |
2166f0fa SK |
75 | // ======================================================================= |
76 | // function : OpenGl_Context | |
77 | // purpose : | |
78 | // ======================================================================= | |
58655684 | 79 | OpenGl_Context::OpenGl_Context (const Handle(OpenGl_Caps)& theCaps) |
01ca42b2 | 80 | : core11 (NULL), |
81 | core11fwd (NULL), | |
82 | core15 (NULL), | |
83 | core15fwd (NULL), | |
84 | core20 (NULL), | |
85 | core20fwd (NULL), | |
86 | core32 (NULL), | |
87 | core32back (NULL), | |
25ef750e | 88 | core33 (NULL), |
89 | core33back (NULL), | |
01ca42b2 | 90 | core41 (NULL), |
91 | core41back (NULL), | |
92 | core42 (NULL), | |
93 | core42back (NULL), | |
94 | core43 (NULL), | |
95 | core43back (NULL), | |
96 | core44 (NULL), | |
97 | core44back (NULL), | |
58655684 | 98 | caps (!theCaps.IsNull() ? theCaps : new OpenGl_Caps()), |
ca3c13d1 | 99 | #if defined(GL_ES_VERSION_2_0) |
100 | hasHighp (Standard_False), | |
e99a2f7c | 101 | hasUintIndex(Standard_False), |
ca3c13d1 | 102 | hasTexRGBA8(Standard_False), |
103 | #else | |
104 | hasHighp (Standard_True), | |
e99a2f7c | 105 | hasUintIndex(Standard_True), |
ca3c13d1 | 106 | hasTexRGBA8(Standard_True), |
107 | #endif | |
25ef750e | 108 | arbNPTW (Standard_False), |
109 | arbTexRG (Standard_False), | |
74fb257d | 110 | arbTexFloat (Standard_False), |
25ef750e | 111 | arbTexBindless (NULL), |
5e27df78 | 112 | arbTBO (NULL), |
25ef750e | 113 | arbTboRGB32 (Standard_False), |
5e27df78 | 114 | arbIns (NULL), |
58655684 | 115 | arbDbg (NULL), |
01ca42b2 | 116 | arbFBO (NULL), |
b86bb3df | 117 | arbFBOBlit (NULL), |
37eb4787 | 118 | extGS (NULL), |
bf75be98 | 119 | extBgra(Standard_False), |
120 | extAnis(Standard_False), | |
30f0ad28 | 121 | extPDS (Standard_False), |
f0430952 | 122 | atiMem (Standard_False), |
123 | nvxMem (Standard_False), | |
5e27df78 | 124 | mySharedResources (new OpenGl_ResourcesMap()), |
a174a3c5 | 125 | myDelayed (new OpenGl_DelayReleaseMap()), |
3125ebb6 | 126 | myUnusedResources (new OpenGl_ResourcesStack()), |
4269bd1b | 127 | myClippingState (), |
5f8b738e | 128 | myGlLibHandle (NULL), |
01ca42b2 | 129 | myFuncs (new OpenGl_GlFunctions()), |
2f6cb3ac | 130 | myAnisoMax (1), |
ca3c13d1 | 131 | myTexClamp (GL_CLAMP_TO_EDGE), |
eafb234b | 132 | myMaxTexDim (1024), |
4269bd1b | 133 | myMaxClipPlanes (6), |
3c4b62a4 | 134 | myMaxMsaaSamples(0), |
5f8b738e | 135 | myGlVerMajor (0), |
136 | myGlVerMinor (0), | |
b5ac8292 | 137 | myIsInitialized (Standard_False), |
138 | myIsStereoBuffers (Standard_False), | |
7d9e854b | 139 | myIsGlNormalizeEnabled (Standard_False), |
ca3c13d1 | 140 | #if !defined(GL_ES_VERSION_2_0) |
7d3e64ef | 141 | myRenderMode (GL_RENDER), |
ca3c13d1 | 142 | #else |
143 | myRenderMode (0), | |
144 | #endif | |
38a0206f | 145 | myReadBuffer (0), |
4e1523ef | 146 | myDrawBuffer (0), |
147 | myDefaultVao (0), | |
75c262a9 | 148 | myIsGlDebugCtx (Standard_False), |
149 | myResolutionRatio (1.0f) | |
2166f0fa | 150 | { |
4e1523ef | 151 | // system-dependent fields |
152 | #if defined(HAVE_EGL) | |
153 | myDisplay = (Aspect_Display )EGL_NO_DISPLAY; | |
154 | myWindow = (Aspect_Drawable )EGL_NO_SURFACE; | |
458c2c58 | 155 | myGContext = (Aspect_RenderingContext )EGL_NO_CONTEXT; |
4e1523ef | 156 | #elif defined(_WIN32) |
157 | myWindow = NULL; | |
158 | myWindowDC = NULL; | |
159 | myGContext = NULL; | |
160 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) | |
5f8b738e | 161 | // Vendors can not extend functionality on this system |
162 | // and developers are limited to OpenGL support provided by Mac OS X SDK. | |
163 | // We retrieve function pointers from system library | |
164 | // to generalize extensions support on all platforms. | |
165 | // In this way we also reach binary compatibility benefit between OS releases | |
166 | // if some newest functionality is optionally used. | |
167 | // Notice that GL version / extension availability checks are required | |
168 | // because function pointers may be available but not functionality itself | |
169 | // (depends on renderer). | |
a2e4f780 | 170 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE |
171 | myGContext = NULL; | |
172 | myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGLES.framework/OpenGLES", RTLD_LAZY); | |
173 | #else | |
4e1523ef | 174 | myGContext = NULL; |
5f8b738e | 175 | myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY); |
a2e4f780 | 176 | #endif |
4e1523ef | 177 | #else |
178 | myDisplay = NULL; | |
179 | myWindow = 0; | |
180 | myGContext = 0; | |
5f8b738e | 181 | #endif |
a2e4f780 | 182 | |
01ca42b2 | 183 | memset (myFuncs.operator->(), 0, sizeof(OpenGl_GlFunctions)); |
30f0ad28 | 184 | myShaderManager = new OpenGl_ShaderManager (this); |
2166f0fa SK |
185 | } |
186 | ||
187 | // ======================================================================= | |
188 | // function : ~OpenGl_Context | |
189 | // purpose : | |
190 | // ======================================================================= | |
191 | OpenGl_Context::~OpenGl_Context() | |
192 | { | |
5e27df78 | 193 | // release clean up queue |
194 | ReleaseDelayed(); | |
195 | ||
4e1523ef | 196 | #if !defined(GL_ES_VERSION_2_0) |
197 | // release default VAO | |
198 | if (myDefaultVao != 0 | |
199 | && IsValid() | |
200 | && core32 != NULL) | |
201 | { | |
202 | core32->glDeleteVertexArrays (1, &myDefaultVao); | |
203 | } | |
204 | myDefaultVao = 0; | |
205 | #endif | |
206 | ||
a2e4f780 | 207 | // release default FBO |
208 | if (!myDefaultFbo.IsNull()) | |
209 | { | |
210 | myDefaultFbo->Release (this); | |
211 | myDefaultFbo.Nullify(); | |
212 | } | |
213 | ||
5e27df78 | 214 | // release shared resources if any |
4796758e | 215 | if (mySharedResources->GetRefCount() <= 1) |
5e27df78 | 216 | { |
392ac980 | 217 | myShaderManager.Nullify(); |
5e27df78 | 218 | for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources); |
219 | anIter.More(); anIter.Next()) | |
220 | { | |
221 | anIter.Value()->Release (this); | |
222 | } | |
e1c659da | 223 | |
224 | // release delayed resources added during deletion of shared resources | |
225 | while (!myUnusedResources->IsEmpty()) | |
226 | { | |
227 | myUnusedResources->First()->Release (this); | |
228 | myUnusedResources->RemoveFirst(); | |
229 | } | |
5e27df78 | 230 | } |
c357e426 | 231 | else if (myShaderManager->IsSameContext (this)) |
392ac980 | 232 | { |
233 | myShaderManager->SetContext (NULL); | |
234 | } | |
5e27df78 | 235 | mySharedResources.Nullify(); |
a174a3c5 | 236 | myDelayed.Nullify(); |
5e27df78 | 237 | |
25ef750e | 238 | // release sampler object |
239 | if (!myTexSampler.IsNull()) | |
240 | { | |
241 | myTexSampler->Release (this); | |
242 | } | |
243 | ||
ca3c13d1 | 244 | #if !defined(GL_ES_VERSION_2_0) |
cbf18624 | 245 | if (arbDbg != NULL |
4e1523ef | 246 | && myIsGlDebugCtx |
f8c8ba7a | 247 | && IsValid()) |
cbf18624 | 248 | { |
249 | // reset callback | |
250 | void* aPtr = NULL; | |
3b523c4c | 251 | glGetPointerv (GL_DEBUG_CALLBACK_USER_PARAM, &aPtr); |
cbf18624 | 252 | if (aPtr == this) |
253 | { | |
254 | arbDbg->glDebugMessageCallbackARB (NULL, NULL); | |
255 | } | |
4e1523ef | 256 | myIsGlDebugCtx = Standard_False; |
cbf18624 | 257 | } |
ca3c13d1 | 258 | #endif |
5f8b738e | 259 | } |
260 | ||
05e2200b | 261 | // ======================================================================= |
262 | // function : forcedRelease | |
263 | // purpose : | |
264 | // ======================================================================= | |
265 | void OpenGl_Context::forcedRelease() | |
266 | { | |
267 | ReleaseDelayed(); | |
268 | for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources); | |
269 | anIter.More(); anIter.Next()) | |
270 | { | |
271 | anIter.Value()->Release (this); | |
272 | } | |
273 | mySharedResources->Clear(); | |
274 | myShaderManager->clear(); | |
275 | myShaderManager->SetContext (NULL); | |
e1c659da | 276 | |
277 | // release delayed resources added during deletion of shared resources | |
278 | while (!myUnusedResources->IsEmpty()) | |
279 | { | |
280 | myUnusedResources->First()->Release (this); | |
281 | myUnusedResources->RemoveFirst(); | |
282 | } | |
05e2200b | 283 | } |
284 | ||
ca3c13d1 | 285 | #if !defined(GL_ES_VERSION_2_0) |
38a0206f | 286 | inline Standard_Integer stereoToMonoBuffer (const Standard_Integer theBuffer) |
287 | { | |
288 | switch (theBuffer) | |
b5ac8292 | 289 | { |
38a0206f | 290 | case GL_BACK_LEFT: |
291 | case GL_BACK_RIGHT: | |
292 | return GL_BACK; | |
293 | case GL_FRONT_LEFT: | |
294 | case GL_FRONT_RIGHT: | |
295 | return GL_FRONT; | |
296 | default: | |
297 | return theBuffer; | |
b5ac8292 | 298 | } |
299 | } | |
38a0206f | 300 | #endif |
b5ac8292 | 301 | |
302 | // ======================================================================= | |
38a0206f | 303 | // function : SetReadBuffer |
b5ac8292 | 304 | // purpose : |
305 | // ======================================================================= | |
38a0206f | 306 | void OpenGl_Context::SetReadBuffer (const Standard_Integer theReadBuffer) |
b5ac8292 | 307 | { |
ca3c13d1 | 308 | #if !defined(GL_ES_VERSION_2_0) |
38a0206f | 309 | myReadBuffer = !myIsStereoBuffers ? stereoToMonoBuffer (theReadBuffer) : theReadBuffer; |
310 | if (myReadBuffer < GL_COLOR_ATTACHMENT0 | |
311 | && arbFBO != NULL) | |
b5ac8292 | 312 | { |
38a0206f | 313 | arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
b5ac8292 | 314 | } |
38a0206f | 315 | ::glReadBuffer (myReadBuffer); |
316 | #else | |
317 | (void )theReadBuffer; | |
ca3c13d1 | 318 | #endif |
b5ac8292 | 319 | } |
320 | ||
321 | // ======================================================================= | |
38a0206f | 322 | // function : SetDrawBuffer |
b5ac8292 | 323 | // purpose : |
324 | // ======================================================================= | |
38a0206f | 325 | void OpenGl_Context::SetDrawBuffer (const Standard_Integer theDrawBuffer) |
b5ac8292 | 326 | { |
ca3c13d1 | 327 | #if !defined(GL_ES_VERSION_2_0) |
38a0206f | 328 | myDrawBuffer = !myIsStereoBuffers ? stereoToMonoBuffer (theDrawBuffer) : theDrawBuffer; |
329 | if (myDrawBuffer < GL_COLOR_ATTACHMENT0 | |
330 | && arbFBO != NULL) | |
b5ac8292 | 331 | { |
38a0206f | 332 | arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
b5ac8292 | 333 | } |
38a0206f | 334 | ::glDrawBuffer (myDrawBuffer); |
335 | #else | |
336 | (void )theDrawBuffer; | |
ca3c13d1 | 337 | #endif |
b5ac8292 | 338 | } |
339 | ||
340 | // ======================================================================= | |
341 | // function : FetchState | |
342 | // purpose : | |
343 | // ======================================================================= | |
344 | void OpenGl_Context::FetchState() | |
345 | { | |
ca3c13d1 | 346 | #if !defined(GL_ES_VERSION_2_0) |
b5ac8292 | 347 | // cache feedback mode state |
4e1523ef | 348 | if (core11 != NULL) |
349 | { | |
350 | ::glGetIntegerv (GL_RENDER_MODE, &myRenderMode); | |
351 | } | |
b5ac8292 | 352 | |
38a0206f | 353 | // cache buffers state |
354 | ::glGetIntegerv (GL_READ_BUFFER, &myReadBuffer); | |
355 | ::glGetIntegerv (GL_DRAW_BUFFER, &myDrawBuffer); | |
ca3c13d1 | 356 | #endif |
b5ac8292 | 357 | } |
358 | ||
5e27df78 | 359 | // ======================================================================= |
360 | // function : Share | |
361 | // purpose : | |
362 | // ======================================================================= | |
363 | void OpenGl_Context::Share (const Handle(OpenGl_Context)& theShareCtx) | |
364 | { | |
365 | if (!theShareCtx.IsNull()) | |
366 | { | |
367 | mySharedResources = theShareCtx->mySharedResources; | |
a174a3c5 | 368 | myDelayed = theShareCtx->myDelayed; |
3125ebb6 | 369 | myUnusedResources = theShareCtx->myUnusedResources; |
392ac980 | 370 | myShaderManager = theShareCtx->myShaderManager; |
5e27df78 | 371 | } |
372 | } | |
373 | ||
4fe56619 | 374 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
375 | ||
86fa64d9 | 376 | // ======================================================================= |
377 | // function : IsCurrent | |
378 | // purpose : | |
379 | // ======================================================================= | |
380 | Standard_Boolean OpenGl_Context::IsCurrent() const | |
381 | { | |
da8bb41d | 382 | #if defined(HAVE_EGL) |
383 | if ((EGLDisplay )myDisplay == EGL_NO_DISPLAY | |
384 | || (EGLSurface )myWindow == EGL_NO_SURFACE | |
385 | || (EGLContext )myGContext == EGL_NO_CONTEXT) | |
386 | { | |
387 | return Standard_False; | |
388 | } | |
389 | ||
390 | return (((EGLDisplay )myDisplay == eglGetCurrentDisplay()) | |
391 | && ((EGLContext )myGContext == eglGetCurrentContext()) | |
392 | && ((EGLSurface )myWindow == eglGetCurrentSurface (EGL_DRAW))); | |
393 | #elif defined(_WIN32) | |
86fa64d9 | 394 | if (myWindowDC == NULL || myGContext == NULL) |
395 | { | |
396 | return Standard_False; | |
397 | } | |
398 | return (( (HDC )myWindowDC == wglGetCurrentDC()) | |
399 | && ((HGLRC )myGContext == wglGetCurrentContext())); | |
400 | #else | |
401 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) | |
402 | { | |
403 | return Standard_False; | |
404 | } | |
405 | ||
406 | return ( ((Display* )myDisplay == glXGetCurrentDisplay()) | |
407 | && ((GLXContext )myGContext == glXGetCurrentContext()) | |
408 | && ((GLXDrawable )myWindow == glXGetCurrentDrawable())); | |
409 | #endif | |
410 | } | |
411 | ||
2bd4c032 | 412 | // ======================================================================= |
413 | // function : MakeCurrent | |
414 | // purpose : | |
415 | // ======================================================================= | |
416 | Standard_Boolean OpenGl_Context::MakeCurrent() | |
417 | { | |
da8bb41d | 418 | #if defined(HAVE_EGL) |
419 | if ((EGLDisplay )myDisplay == EGL_NO_DISPLAY | |
420 | || (EGLSurface )myWindow == EGL_NO_SURFACE | |
421 | || (EGLContext )myGContext == EGL_NO_CONTEXT) | |
422 | { | |
423 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
424 | return Standard_False; | |
425 | } | |
426 | ||
427 | if (eglMakeCurrent ((EGLDisplay )myDisplay, (EGLSurface )myWindow, (EGLSurface )myWindow, (EGLContext )myGContext) != EGL_TRUE) | |
428 | { | |
429 | // if there is no current context it might be impossible to use glGetError() correctly | |
3b523c4c | 430 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, |
da8bb41d | 431 | "eglMakeCurrent() has failed!"); |
432 | myIsInitialized = Standard_False; | |
433 | return Standard_False; | |
434 | } | |
435 | #elif defined(_WIN32) | |
86fa64d9 | 436 | if (myWindowDC == NULL || myGContext == NULL) |
2bd4c032 | 437 | { |
86fa64d9 | 438 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); |
439 | return Standard_False; | |
440 | } | |
441 | ||
442 | // technically it should be safe to activate already bound GL context | |
443 | // however some drivers (Intel etc.) may FAIL doing this for unknown reason | |
444 | if (IsCurrent()) | |
445 | { | |
392ac980 | 446 | myShaderManager->SetContext (this); |
86fa64d9 | 447 | return Standard_True; |
448 | } | |
449 | else if (wglMakeCurrent ((HDC )myWindowDC, (HGLRC )myGContext) != TRUE) | |
450 | { | |
451 | // notice that glGetError() couldn't be used here! | |
452 | wchar_t* aMsgBuff = NULL; | |
453 | DWORD anErrorCode = GetLastError(); | |
454 | FormatMessageW (FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, | |
455 | NULL, anErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (wchar_t* )&aMsgBuff, 0, NULL); | |
cbf18624 | 456 | TCollection_ExtendedString aMsg ("wglMakeCurrent() has failed. "); |
86fa64d9 | 457 | if (aMsgBuff != NULL) |
458 | { | |
cbf18624 | 459 | aMsg += (Standard_ExtString )aMsgBuff; |
86fa64d9 | 460 | LocalFree (aMsgBuff); |
461 | } | |
3b523c4c | 462 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM, GL_DEBUG_TYPE_ERROR, (unsigned int )anErrorCode, GL_DEBUG_SEVERITY_HIGH, aMsg); |
fd4a6963 | 463 | myIsInitialized = Standard_False; |
2bd4c032 | 464 | return Standard_False; |
465 | } | |
466 | #else | |
86fa64d9 | 467 | if (myDisplay == NULL || myWindow == 0 || myGContext == 0) |
468 | { | |
469 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!"); | |
470 | return Standard_False; | |
471 | } | |
472 | ||
473 | if (!glXMakeCurrent ((Display* )myDisplay, (GLXDrawable )myWindow, (GLXContext )myGContext)) | |
2bd4c032 | 474 | { |
475 | // if there is no current context it might be impossible to use glGetError() correctly | |
3b523c4c | 476 | PushMessage (GL_DEBUG_SOURCE_WINDOW_SYSTEM, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, |
cbf18624 | 477 | "glXMakeCurrent() has failed!"); |
fd4a6963 | 478 | myIsInitialized = Standard_False; |
2bd4c032 | 479 | return Standard_False; |
480 | } | |
481 | #endif | |
392ac980 | 482 | myShaderManager->SetContext (this); |
2bd4c032 | 483 | return Standard_True; |
484 | } | |
485 | ||
5e27df78 | 486 | // ======================================================================= |
487 | // function : SwapBuffers | |
488 | // purpose : | |
489 | // ======================================================================= | |
490 | void OpenGl_Context::SwapBuffers() | |
491 | { | |
da8bb41d | 492 | #if defined(HAVE_EGL) |
493 | if ((EGLSurface )myWindow != EGL_NO_SURFACE) | |
494 | { | |
495 | eglSwapBuffers ((EGLDisplay )myDisplay, (EGLSurface )myWindow); | |
496 | } | |
497 | #elif defined(_WIN32) | |
5e27df78 | 498 | if ((HDC )myWindowDC != NULL) |
499 | { | |
500 | ::SwapBuffers ((HDC )myWindowDC); | |
501 | glFlush(); | |
502 | } | |
503 | #else | |
504 | if ((Display* )myDisplay != NULL) | |
505 | { | |
506 | glXSwapBuffers ((Display* )myDisplay, (GLXDrawable )myWindow); | |
507 | } | |
508 | #endif | |
509 | } | |
510 | ||
4fe56619 | 511 | #endif // __APPLE__ |
512 | ||
f978241f | 513 | // ======================================================================= |
514 | // function : SetSwapInterval | |
515 | // purpose : | |
516 | // ======================================================================= | |
517 | Standard_Boolean OpenGl_Context::SetSwapInterval (const Standard_Integer theInterval) | |
518 | { | |
519 | #if defined(HAVE_EGL) | |
520 | if (::eglSwapInterval ((EGLDisplay )myDisplay, theInterval) == EGL_TRUE) | |
521 | { | |
522 | return Standard_True; | |
523 | } | |
524 | #elif defined(_WIN32) | |
525 | if (myFuncs->wglSwapIntervalEXT != NULL) | |
526 | { | |
527 | myFuncs->wglSwapIntervalEXT (theInterval); | |
528 | return Standard_True; | |
529 | } | |
530 | #elif defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE | |
531 | // | |
532 | #elif defined(__APPLE__) | |
533 | if (::CGLSetParameter (CGLGetCurrentContext(), kCGLCPSwapInterval, &theInterval) == kCGLNoError) | |
534 | { | |
535 | return Standard_True; | |
536 | } | |
537 | #else | |
538 | if (theInterval == -1 | |
539 | && myFuncs->glXSwapIntervalEXT != NULL) | |
540 | { | |
541 | typedef int (*glXSwapIntervalEXT_t_x)(Display* theDisplay, GLXDrawable theDrawable, int theInterval); | |
542 | glXSwapIntervalEXT_t_x aFuncPtr = (glXSwapIntervalEXT_t_x )myFuncs->glXSwapIntervalEXT; | |
543 | aFuncPtr ((Display* )myDisplay, (GLXDrawable )myWindow, theInterval); | |
544 | return Standard_True; | |
545 | } | |
546 | else if (myFuncs->glXSwapIntervalSGI != NULL) | |
547 | { | |
548 | myFuncs->glXSwapIntervalSGI (theInterval); | |
549 | return Standard_True; | |
550 | } | |
551 | #endif | |
552 | return Standard_False; | |
553 | } | |
554 | ||
5f8b738e | 555 | // ======================================================================= |
556 | // function : findProc | |
557 | // purpose : | |
558 | // ======================================================================= | |
559 | void* OpenGl_Context::findProc (const char* theFuncName) | |
560 | { | |
da8bb41d | 561 | #if defined(HAVE_EGL) |
562 | return (void* )eglGetProcAddress (theFuncName); | |
563 | #elif defined(_WIN32) | |
7c65581d | 564 | return (void* )wglGetProcAddress (theFuncName); |
5f8b738e | 565 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
566 | return (myGlLibHandle != NULL) ? dlsym (myGlLibHandle, theFuncName) : NULL; | |
567 | #else | |
568 | return (void* )glXGetProcAddress ((const GLubyte* )theFuncName); | |
569 | #endif | |
2166f0fa SK |
570 | } |
571 | ||
572 | // ======================================================================= | |
573 | // function : CheckExtension | |
574 | // purpose : | |
575 | // ======================================================================= | |
2bd4c032 | 576 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtName) const |
2166f0fa | 577 | { |
5f8b738e | 578 | if (theExtName == NULL) |
579 | { | |
0797d9d3 | 580 | #ifdef OCCT_DEBUG |
5f8b738e | 581 | std::cerr << "CheckExtension called with NULL string!\n"; |
63c629aa | 582 | #endif |
5f8b738e | 583 | return Standard_False; |
584 | } | |
5f8b738e | 585 | |
4e1523ef | 586 | #if !defined(GL_ES_VERSION_2_0) |
5f8b738e | 587 | // available since OpenGL 3.0 |
588 | // and the ONLY way to check extensions with OpenGL 3.1+ core profile | |
4e1523ef | 589 | if (IsGlGreaterEqual (3, 0) |
590 | && myFuncs->glGetStringi != NULL) | |
5f8b738e | 591 | { |
592 | GLint anExtNb = 0; | |
4e1523ef | 593 | ::glGetIntegerv (GL_NUM_EXTENSIONS, &anExtNb); |
594 | const size_t anExtNameLen = strlen (theExtName); | |
5f8b738e | 595 | for (GLint anIter = 0; anIter < anExtNb; ++anIter) |
596 | { | |
4e1523ef | 597 | const char* anExtension = (const char* )myFuncs->glGetStringi (GL_EXTENSIONS, (GLuint )anIter); |
598 | const size_t aTestExtNameLen = strlen (anExtension); | |
599 | if (aTestExtNameLen == anExtNameLen | |
600 | && strncmp (anExtension, theExtName, anExtNameLen) == 0) | |
5f8b738e | 601 | { |
602 | return Standard_True; | |
603 | } | |
604 | } | |
605 | return Standard_False; | |
4e1523ef | 606 | } |
607 | #endif | |
5f8b738e | 608 | |
609 | // use old way with huge string for all extensions | |
610 | const char* anExtString = (const char* )glGetString (GL_EXTENSIONS); | |
611 | if (anExtString == NULL) | |
612 | { | |
7e7c2f0b | 613 | Messenger()->Send ("TKOpenGL: glGetString (GL_EXTENSIONS) has returned NULL! No GL context?", Message_Warning); |
2166f0fa SK |
614 | return Standard_False; |
615 | } | |
58655684 | 616 | return CheckExtension (anExtString, theExtName); |
617 | } | |
618 | ||
619 | // ======================================================================= | |
620 | // function : CheckExtension | |
621 | // purpose : | |
622 | // ======================================================================= | |
623 | Standard_Boolean OpenGl_Context::CheckExtension (const char* theExtString, | |
624 | const char* theExtName) | |
625 | { | |
626 | if (theExtString == NULL) | |
627 | { | |
628 | return Standard_False; | |
629 | } | |
2166f0fa SK |
630 | |
631 | // Search for theExtName in the extensions string. | |
632 | // Use of strstr() is not sufficient because extension names can be prefixes of other extension names. | |
58655684 | 633 | char* aPtrIter = (char* )theExtString; |
634 | const char* aPtrEnd = aPtrIter + strlen (theExtString); | |
635 | const size_t anExtNameLen = strlen (theExtName); | |
2166f0fa SK |
636 | while (aPtrIter < aPtrEnd) |
637 | { | |
6a7d83c4 | 638 | const size_t n = strcspn (aPtrIter, " "); |
5f8b738e | 639 | if ((n == anExtNameLen) && (strncmp (aPtrIter, theExtName, anExtNameLen) == 0)) |
640 | { | |
2166f0fa | 641 | return Standard_True; |
5f8b738e | 642 | } |
2166f0fa SK |
643 | aPtrIter += (n + 1); |
644 | } | |
645 | return Standard_False; | |
646 | } | |
647 | ||
4fe56619 | 648 | #if !defined(__APPLE__) || defined(MACOSX_USE_GLX) |
649 | ||
2166f0fa SK |
650 | // ======================================================================= |
651 | // function : Init | |
652 | // purpose : | |
653 | // ======================================================================= | |
4e1523ef | 654 | Standard_Boolean OpenGl_Context::Init (const Standard_Boolean theIsCoreProfile) |
2166f0fa | 655 | { |
2bd4c032 | 656 | if (myIsInitialized) |
5f8b738e | 657 | { |
f0430952 | 658 | return Standard_True; |
5f8b738e | 659 | } |
2bd4c032 | 660 | |
da8bb41d | 661 | #if defined(HAVE_EGL) |
662 | myDisplay = (Aspect_Display )eglGetCurrentDisplay(); | |
663 | myGContext = (Aspect_RenderingContext )eglGetCurrentContext(); | |
664 | myWindow = (Aspect_Drawable )eglGetCurrentSurface(EGL_DRAW); | |
665 | #elif defined(_WIN32) | |
2bd4c032 | 666 | myWindowDC = (Aspect_Handle )wglGetCurrentDC(); |
667 | myGContext = (Aspect_RenderingContext )wglGetCurrentContext(); | |
668 | #else | |
669 | myDisplay = (Aspect_Display )glXGetCurrentDisplay(); | |
670 | myGContext = (Aspect_RenderingContext )glXGetCurrentContext(); | |
671 | myWindow = (Aspect_Drawable )glXGetCurrentDrawable(); | |
672 | #endif | |
f0430952 | 673 | if (myGContext == NULL) |
674 | { | |
675 | return Standard_False; | |
676 | } | |
2bd4c032 | 677 | |
4e1523ef | 678 | init (theIsCoreProfile); |
2bd4c032 | 679 | myIsInitialized = Standard_True; |
f0430952 | 680 | return Standard_True; |
2bd4c032 | 681 | } |
682 | ||
4fe56619 | 683 | #endif // __APPLE__ |
684 | ||
2bd4c032 | 685 | // ======================================================================= |
686 | // function : Init | |
687 | // purpose : | |
688 | // ======================================================================= | |
da8bb41d | 689 | #if defined(HAVE_EGL) |
690 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theEglSurface, | |
691 | const Aspect_Display theEglDisplay, | |
4e1523ef | 692 | const Aspect_RenderingContext theEglContext, |
693 | const Standard_Boolean theIsCoreProfile) | |
da8bb41d | 694 | #elif defined(_WIN32) |
f0430952 | 695 | Standard_Boolean OpenGl_Context::Init (const Aspect_Handle theWindow, |
696 | const Aspect_Handle theWindowDC, | |
4e1523ef | 697 | const Aspect_RenderingContext theGContext, |
698 | const Standard_Boolean theIsCoreProfile) | |
4fe56619 | 699 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
a2e4f780 | 700 | |
701 | #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE | |
702 | Standard_Boolean OpenGl_Context::Init (EAGLContext* theGContext, | |
4e1523ef | 703 | const Standard_Boolean theIsCoreProfile) |
a2e4f780 | 704 | #else |
705 | Standard_Boolean OpenGl_Context::Init (NSOpenGLContext* theGContext, | |
706 | const Standard_Boolean theIsCoreProfile) | |
707 | #endif | |
708 | ||
2bd4c032 | 709 | #else |
f0430952 | 710 | Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theWindow, |
711 | const Aspect_Display theDisplay, | |
4e1523ef | 712 | const Aspect_RenderingContext theGContext, |
713 | const Standard_Boolean theIsCoreProfile) | |
2bd4c032 | 714 | #endif |
715 | { | |
716 | Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called only once!"); | |
da8bb41d | 717 | #if defined(HAVE_EGL) |
718 | myWindow = theEglSurface; | |
719 | myGContext = theEglContext; | |
720 | myDisplay = theEglDisplay; | |
721 | #elif defined(_WIN32) | |
2bd4c032 | 722 | myWindow = theWindow; |
723 | myGContext = theGContext; | |
2bd4c032 | 724 | myWindowDC = theWindowDC; |
4fe56619 | 725 | #elif defined(__APPLE__) && !defined(MACOSX_USE_GLX) |
a2e4f780 | 726 | myGContext = theGContext; |
2bd4c032 | 727 | #else |
4fe56619 | 728 | myWindow = theWindow; |
729 | myGContext = theGContext; | |
2bd4c032 | 730 | myDisplay = theDisplay; |
731 | #endif | |
86fa64d9 | 732 | if (myGContext == NULL || !MakeCurrent()) |
f0430952 | 733 | { |
734 | return Standard_False; | |
735 | } | |
2bd4c032 | 736 | |
4e1523ef | 737 | init (theIsCoreProfile); |
2bd4c032 | 738 | myIsInitialized = Standard_True; |
f0430952 | 739 | return Standard_True; |
5f8b738e | 740 | } |
741 | ||
742 | // ======================================================================= | |
743 | // function : ResetErrors | |
744 | // purpose : | |
745 | // ======================================================================= | |
3c4b62a4 | 746 | void OpenGl_Context::ResetErrors (const bool theToPrintErrors) |
5f8b738e | 747 | { |
3c4b62a4 | 748 | int aPrevErr = 0; |
749 | int anErr = ::glGetError(); | |
750 | if (!theToPrintErrors) | |
5f8b738e | 751 | { |
3c4b62a4 | 752 | for (; anErr != GL_NO_ERROR && aPrevErr != anErr; aPrevErr = anErr, anErr = ::glGetError()) |
753 | { | |
754 | // | |
755 | } | |
756 | return; | |
757 | } | |
758 | ||
759 | for (; anErr != GL_NO_ERROR && aPrevErr != anErr; aPrevErr = anErr, anErr = ::glGetError()) | |
760 | { | |
761 | TCollection_ExtendedString anErrId; | |
762 | switch (anErr) | |
763 | { | |
764 | case GL_INVALID_ENUM: anErrId = "GL_INVALID_ENUM"; break; | |
765 | case GL_INVALID_VALUE: anErrId = "GL_INVALID_VALUE"; break; | |
766 | case GL_INVALID_OPERATION: anErrId = "GL_INVALID_OPERATION"; break; | |
767 | #ifdef GL_STACK_OVERFLOW | |
768 | case GL_STACK_OVERFLOW: anErrId = "GL_STACK_OVERFLOW"; break; | |
769 | case GL_STACK_UNDERFLOW: anErrId = "GL_STACK_UNDERFLOW"; break; | |
770 | #endif | |
771 | case GL_OUT_OF_MEMORY: anErrId = "GL_OUT_OF_MEMORY"; break; | |
772 | case GL_INVALID_FRAMEBUFFER_OPERATION: | |
773 | anErrId = "GL_INVALID_FRAMEBUFFER_OPERATION"; | |
774 | break; | |
775 | default: | |
776 | anErrId = TCollection_ExtendedString("#") + anErr; | |
777 | break; | |
778 | } | |
779 | ||
780 | const TCollection_ExtendedString aMsg = TCollection_ExtendedString ("Unhandled GL error: ") + anErrId; | |
82f443b6 | 781 | PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_OTHER, 0, GL_DEBUG_SEVERITY_LOW, aMsg); |
5f8b738e | 782 | } |
783 | } | |
784 | ||
785 | // ======================================================================= | |
4e1523ef | 786 | // function : ReadGlVersion |
5f8b738e | 787 | // purpose : |
788 | // ======================================================================= | |
4e1523ef | 789 | void OpenGl_Context::ReadGlVersion (Standard_Integer& theGlVerMajor, |
790 | Standard_Integer& theGlVerMinor) | |
5f8b738e | 791 | { |
792 | // reset values | |
4e1523ef | 793 | theGlVerMajor = 0; |
794 | theGlVerMinor = 0; | |
5f8b738e | 795 | |
ca3c13d1 | 796 | #ifdef GL_MAJOR_VERSION |
797 | // available since OpenGL 3.0 and OpenGL 3.0 ES | |
86325709 | 798 | GLint aMajor = 0, aMinor = 0; |
5f8b738e | 799 | glGetIntegerv (GL_MAJOR_VERSION, &aMajor); |
800 | glGetIntegerv (GL_MINOR_VERSION, &aMinor); | |
30f0ad28 | 801 | // glGetError() sometimes does not report an error here even if |
86325709 | 802 | // GL does not know GL_MAJOR_VERSION and GL_MINOR_VERSION constants. |
ca3c13d1 | 803 | // This happens on some renderers like e.g. Cygwin MESA. |
86325709 | 804 | // Thus checking additionally if GL has put anything to |
805 | // the output variables. | |
4e1523ef | 806 | if (::glGetError() == GL_NO_ERROR && aMajor != 0 && aMinor != 0) |
5f8b738e | 807 | { |
4e1523ef | 808 | theGlVerMajor = aMajor; |
809 | theGlVerMinor = aMinor; | |
5f8b738e | 810 | return; |
811 | } | |
4e1523ef | 812 | for (GLenum anErr = ::glGetError(), aPrevErr = GL_NO_ERROR;; aPrevErr = anErr, anErr = ::glGetError()) |
813 | { | |
814 | if (anErr == GL_NO_ERROR | |
815 | || anErr == aPrevErr) | |
816 | { | |
817 | break; | |
818 | } | |
819 | } | |
ca3c13d1 | 820 | #endif |
5f8b738e | 821 | |
822 | // Read version string. | |
ca3c13d1 | 823 | // Notice that only first two numbers split by point '2.1 XXXXX' are significant. |
5f8b738e | 824 | // Following trash (after space) is vendor-specific. |
825 | // New drivers also returns micro version of GL like '3.3.0' which has no meaning | |
826 | // and should be considered as vendor-specific too. | |
827 | const char* aVerStr = (const char* )glGetString (GL_VERSION); | |
828 | if (aVerStr == NULL || *aVerStr == '\0') | |
829 | { | |
830 | // invalid GL context | |
831 | return; | |
832 | } | |
833 | ||
ca3c13d1 | 834 | //#if defined(GL_ES_VERSION_2_0) |
835 | // skip "OpenGL ES-** " section | |
836 | for (; *aVerStr != '\0'; ++aVerStr) | |
837 | { | |
838 | if (*aVerStr >= '0' && *aVerStr <= '9') | |
839 | { | |
840 | break; | |
841 | } | |
842 | } | |
843 | //#endif | |
844 | ||
5f8b738e | 845 | // parse string for major number |
846 | char aMajorStr[32]; | |
847 | char aMinorStr[32]; | |
848 | size_t aMajIter = 0; | |
849 | while (aVerStr[aMajIter] >= '0' && aVerStr[aMajIter] <= '9') | |
850 | { | |
851 | ++aMajIter; | |
852 | } | |
853 | if (aMajIter == 0 || aMajIter >= sizeof(aMajorStr)) | |
854 | { | |
855 | return; | |
856 | } | |
857 | memcpy (aMajorStr, aVerStr, aMajIter); | |
858 | aMajorStr[aMajIter] = '\0'; | |
859 | ||
860 | // parse string for minor number | |
86325709 | 861 | aVerStr += aMajIter + 1; |
862 | size_t aMinIter = 0; | |
5f8b738e | 863 | while (aVerStr[aMinIter] >= '0' && aVerStr[aMinIter] <= '9') |
864 | { | |
865 | ++aMinIter; | |
866 | } | |
86325709 | 867 | if (aMinIter == 0 || aMinIter >= sizeof(aMinorStr)) |
5f8b738e | 868 | { |
869 | return; | |
870 | } | |
86325709 | 871 | memcpy (aMinorStr, aVerStr, aMinIter); |
872 | aMinorStr[aMinIter] = '\0'; | |
5f8b738e | 873 | |
874 | // read numbers | |
4e1523ef | 875 | theGlVerMajor = atoi (aMajorStr); |
876 | theGlVerMinor = atoi (aMinorStr); | |
5f8b738e | 877 | |
4e1523ef | 878 | if (theGlVerMajor <= 0) |
5f8b738e | 879 | { |
4e1523ef | 880 | theGlVerMajor = 0; |
881 | theGlVerMinor = 0; | |
5f8b738e | 882 | } |
883 | } | |
884 | ||
58655684 | 885 | static Standard_CString THE_DBGMSG_UNKNOWN = "UNKNOWN"; |
886 | static Standard_CString THE_DBGMSG_SOURCES[] = | |
887 | { | |
3b523c4c | 888 | ".OpenGL", // GL_DEBUG_SOURCE_API |
889 | ".WinSystem", // GL_DEBUG_SOURCE_WINDOW_SYSTEM | |
890 | ".GLSL", // GL_DEBUG_SOURCE_SHADER_COMPILER | |
891 | ".3rdParty", // GL_DEBUG_SOURCE_THIRD_PARTY | |
892 | "", // GL_DEBUG_SOURCE_APPLICATION | |
893 | ".Other" // GL_DEBUG_SOURCE_OTHER | |
58655684 | 894 | }; |
895 | ||
896 | static Standard_CString THE_DBGMSG_TYPES[] = | |
897 | { | |
3b523c4c | 898 | "Error", // GL_DEBUG_TYPE_ERROR |
899 | "Deprecated", // GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR | |
900 | "Undef. behavior", // GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR | |
901 | "Portability", // GL_DEBUG_TYPE_PORTABILITY | |
902 | "Performance", // GL_DEBUG_TYPE_PERFORMANCE | |
903 | "Other" // GL_DEBUG_TYPE_OTHER | |
58655684 | 904 | }; |
905 | ||
3b523c4c | 906 | static Standard_CString THE_DBGMSG_SEV_HIGH = "High"; // GL_DEBUG_SEVERITY_HIGH |
907 | static Standard_CString THE_DBGMSG_SEV_MEDIUM = "Medium"; // GL_DEBUG_SEVERITY_MEDIUM | |
908 | static Standard_CString THE_DBGMSG_SEV_LOW = "Low"; // GL_DEBUG_SEVERITY_LOW | |
58655684 | 909 | |
ca3c13d1 | 910 | #if !defined(GL_ES_VERSION_2_0) |
cbf18624 | 911 | //! Callback for GL_ARB_debug_output extension |
58655684 | 912 | static void APIENTRY debugCallbackWrap(unsigned int theSource, |
913 | unsigned int theType, | |
914 | unsigned int theId, | |
915 | unsigned int theSeverity, | |
916 | int /*theLength*/, | |
917 | const char* theMessage, | |
9293178b | 918 | const void* theUserParam) |
cbf18624 | 919 | { |
920 | OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam; | |
921 | aCtx->PushMessage (theSource, theType, theId, theSeverity, theMessage); | |
922 | } | |
ca3c13d1 | 923 | #endif |
cbf18624 | 924 | |
925 | // ======================================================================= | |
926 | // function : PushMessage | |
927 | // purpose : | |
928 | // ======================================================================= | |
929 | void OpenGl_Context::PushMessage (const unsigned int theSource, | |
930 | const unsigned int theType, | |
931 | const unsigned int theId, | |
932 | const unsigned int theSeverity, | |
933 | const TCollection_ExtendedString& theMessage) | |
58655684 | 934 | { |
c87535af | 935 | if (caps->suppressExtraMsg |
3b523c4c | 936 | && theSource >= GL_DEBUG_SOURCE_API |
937 | && theSource <= GL_DEBUG_SOURCE_OTHER | |
938 | && myFilters[theSource - GL_DEBUG_SOURCE_API].Contains (theId)) | |
c87535af | 939 | { |
940 | return; | |
941 | } | |
942 | ||
3b523c4c | 943 | Standard_CString& aSrc = (theSource >= GL_DEBUG_SOURCE_API |
944 | && theSource <= GL_DEBUG_SOURCE_OTHER) | |
945 | ? THE_DBGMSG_SOURCES[theSource - GL_DEBUG_SOURCE_API] | |
58655684 | 946 | : THE_DBGMSG_UNKNOWN; |
3b523c4c | 947 | Standard_CString& aType = (theType >= GL_DEBUG_TYPE_ERROR |
948 | && theType <= GL_DEBUG_TYPE_OTHER) | |
949 | ? THE_DBGMSG_TYPES[theType - GL_DEBUG_TYPE_ERROR] | |
58655684 | 950 | : THE_DBGMSG_UNKNOWN; |
3b523c4c | 951 | Standard_CString& aSev = theSeverity == GL_DEBUG_SEVERITY_HIGH |
58655684 | 952 | ? THE_DBGMSG_SEV_HIGH |
3b523c4c | 953 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM |
58655684 | 954 | ? THE_DBGMSG_SEV_MEDIUM |
955 | : THE_DBGMSG_SEV_LOW); | |
3b523c4c | 956 | Message_Gravity aGrav = theSeverity == GL_DEBUG_SEVERITY_HIGH |
cbf18624 | 957 | ? Message_Alarm |
3b523c4c | 958 | : (theSeverity == GL_DEBUG_SEVERITY_MEDIUM |
cbf18624 | 959 | ? Message_Warning |
960 | : Message_Info); | |
961 | ||
962 | TCollection_ExtendedString aMsg; | |
963 | aMsg += "TKOpenGl"; aMsg += aSrc; | |
964 | aMsg += " | Type: "; aMsg += aType; | |
965 | aMsg += " | ID: "; aMsg += (Standard_Integer )theId; | |
966 | aMsg += " | Severity: "; aMsg += aSev; | |
967 | aMsg += " | Message:\n "; | |
968 | aMsg += theMessage; | |
7e7c2f0b | 969 | Messenger()->Send (aMsg, aGrav); |
58655684 | 970 | } |
971 | ||
c87535af | 972 | // ======================================================================= |
973 | // function : ExcludeMessage | |
974 | // purpose : | |
975 | // ====================================================================== | |
976 | Standard_Boolean OpenGl_Context::ExcludeMessage (const unsigned int theSource, | |
977 | const unsigned int theId) | |
978 | { | |
3b523c4c | 979 | return theSource >= GL_DEBUG_SOURCE_API |
980 | && theSource <= GL_DEBUG_SOURCE_OTHER | |
981 | && myFilters[theSource - GL_DEBUG_SOURCE_API].Add (theId); | |
c87535af | 982 | } |
983 | ||
984 | // ======================================================================= | |
985 | // function : IncludeMessage | |
986 | // purpose : | |
987 | // ====================================================================== | |
988 | Standard_Boolean OpenGl_Context::IncludeMessage (const unsigned int theSource, | |
989 | const unsigned int theId) | |
990 | { | |
3b523c4c | 991 | return theSource >= GL_DEBUG_SOURCE_API |
992 | && theSource <= GL_DEBUG_SOURCE_OTHER | |
993 | && myFilters[theSource - GL_DEBUG_SOURCE_API].Remove (theId); | |
c87535af | 994 | } |
995 | ||
ee51a9fe | 996 | // ======================================================================= |
997 | // function : checkWrongVersion | |
998 | // purpose : | |
999 | // ====================================================================== | |
1000 | void OpenGl_Context::checkWrongVersion (const Standard_Integer theGlVerMajor, | |
1001 | const Standard_Integer theGlVerMinor) | |
1002 | { | |
1003 | if (!IsGlGreaterEqual (theGlVerMajor, theGlVerMinor)) | |
1004 | { | |
1005 | return; | |
1006 | } | |
1007 | ||
1008 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() | |
1009 | + "Error! OpenGL context reports version " | |
1010 | + myGlVerMajor + "." + myGlVerMinor | |
1011 | + " but does not export required functions for " | |
1012 | + theGlVerMajor + "." + theGlVerMinor; | |
3b523c4c | 1013 | PushMessage (GL_DEBUG_SOURCE_APPLICATION, |
1014 | GL_DEBUG_TYPE_ERROR, | |
ee51a9fe | 1015 | 0, |
3b523c4c | 1016 | GL_DEBUG_SEVERITY_HIGH, |
ee51a9fe | 1017 | aMsg); |
1018 | } | |
1019 | ||
5f8b738e | 1020 | // ======================================================================= |
1021 | // function : init | |
1022 | // purpose : | |
1023 | // ======================================================================= | |
4e1523ef | 1024 | void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile) |
5f8b738e | 1025 | { |
1026 | // read version | |
4e1523ef | 1027 | myGlVerMajor = 0; |
1028 | myGlVerMinor = 0; | |
3c4b62a4 | 1029 | myMaxMsaaSamples = 0; |
4e1523ef | 1030 | ReadGlVersion (myGlVerMajor, myGlVerMinor); |
c87535af | 1031 | myVendor = (const char* )::glGetString (GL_VENDOR); |
4e1523ef | 1032 | |
1033 | #if defined(GL_ES_VERSION_2_0) | |
1034 | (void )theIsCoreProfile; | |
1035 | const bool isCoreProfile = false; | |
1036 | #else | |
c87535af | 1037 | |
1038 | if (myVendor.Search ("NVIDIA") != -1) | |
1039 | { | |
1040 | // Buffer detailed info: Buffer object 1 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW) | |
1041 | // will use VIDEO memory as the source for buffer object operations. | |
3b523c4c | 1042 | ExcludeMessage (GL_DEBUG_SOURCE_API, 131185); |
c87535af | 1043 | } |
4e1523ef | 1044 | if (IsGlGreaterEqual (3, 0)) |
1045 | { | |
1046 | // retrieve auxiliary function in advance | |
1047 | FindProc ("glGetStringi", myFuncs->glGetStringi); | |
1048 | } | |
1049 | ||
d4271fe5 | 1050 | bool isCoreProfile = false; |
4e1523ef | 1051 | if (IsGlGreaterEqual (3, 2)) |
1052 | { | |
d4271fe5 | 1053 | isCoreProfile = (theIsCoreProfile == Standard_True); |
4e1523ef | 1054 | |
d4271fe5 | 1055 | // detect Core profile |
c6ad5e5f | 1056 | if (!isCoreProfile) |
4e1523ef | 1057 | { |
d4271fe5 | 1058 | GLint aProfile = 0; |
1059 | ::glGetIntegerv (GL_CONTEXT_PROFILE_MASK, &aProfile); | |
1060 | isCoreProfile = (aProfile & GL_CONTEXT_CORE_PROFILE_BIT) != 0; | |
4e1523ef | 1061 | } |
1062 | } | |
4e1523ef | 1063 | #endif |
1064 | ||
1065 | core11 = NULL; | |
1066 | if (!isCoreProfile) | |
1067 | { | |
1068 | core11 = (OpenGl_GlCore11* )(&(*myFuncs)); | |
1069 | } | |
01ca42b2 | 1070 | core11fwd = (OpenGl_GlCore11Fwd* )(&(*myFuncs)); |
1071 | core15 = NULL; | |
1072 | core15fwd = NULL; | |
1073 | core20 = NULL; | |
1074 | core20fwd = NULL; | |
1075 | core32 = NULL; | |
1076 | core32back = NULL; | |
25ef750e | 1077 | core33 = NULL; |
1078 | core33back = NULL; | |
01ca42b2 | 1079 | core41 = NULL; |
1080 | core41back = NULL; | |
1081 | core42 = NULL; | |
1082 | core42back = NULL; | |
1083 | core43 = NULL; | |
1084 | core43back = NULL; | |
1085 | core44 = NULL; | |
1086 | core44back = NULL; | |
1087 | arbTBO = NULL; | |
25ef750e | 1088 | arbTboRGB32 = Standard_False; |
01ca42b2 | 1089 | arbIns = NULL; |
1090 | arbDbg = NULL; | |
1091 | arbFBO = NULL; | |
b86bb3df | 1092 | arbFBOBlit = NULL; |
01ca42b2 | 1093 | extGS = NULL; |
4e1523ef | 1094 | myDefaultVao = 0; |
01ca42b2 | 1095 | |
ca3c13d1 | 1096 | #if defined(GL_ES_VERSION_2_0) |
1097 | ||
1098 | hasTexRGBA8 = IsGlGreaterEqual (3, 0) | |
1099 | || CheckExtension ("GL_OES_rgb8_rgba8"); | |
05e2200b | 1100 | // NPOT textures has limited support within OpenGL ES 2.0 |
1101 | // which are relaxed by OpenGL ES 3.0 or some extensions | |
1102 | //arbNPTW = IsGlGreaterEqual (3, 0) | |
1103 | // || CheckExtension ("GL_OES_texture_npot") | |
1104 | // || CheckExtension ("GL_NV_texture_npot_2D_mipmap"); | |
1105 | arbNPTW = Standard_True; | |
ca3c13d1 | 1106 | arbTexRG = IsGlGreaterEqual (3, 0) |
1107 | || CheckExtension ("GL_EXT_texture_rg"); | |
1108 | extBgra = CheckExtension ("GL_EXT_texture_format_BGRA8888"); | |
1109 | extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic"); | |
1110 | extPDS = CheckExtension ("GL_OES_packed_depth_stencil"); | |
1111 | ||
1112 | core11fwd = (OpenGl_GlCore11Fwd* )(&(*myFuncs)); | |
1113 | if (IsGlGreaterEqual (2, 0)) | |
1114 | { | |
1115 | // enable compatible functions | |
1116 | core20 = (OpenGl_GlCore20* )(&(*myFuncs)); | |
1117 | core20fwd = (OpenGl_GlCore20Fwd* )(&(*myFuncs)); | |
1118 | core15fwd = (OpenGl_GlCore15Fwd* )(&(*myFuncs)); | |
b86bb3df | 1119 | arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs)); |
1120 | } | |
1121 | if (IsGlGreaterEqual (3, 0) | |
1122 | && FindProc ("glBlitFramebuffer", myFuncs->glBlitFramebuffer)) | |
1123 | { | |
1124 | arbFBOBlit = (OpenGl_ArbFBOBlit* )(&(*myFuncs)); | |
ca3c13d1 | 1125 | } |
3c4b62a4 | 1126 | if (IsGlGreaterEqual (3, 1) |
1127 | && FindProc ("glTexStorage2DMultisample", myFuncs->glTexStorage2DMultisample)) | |
1128 | { | |
1129 | // MSAA RenderBuffers have been defined in OpenGL ES 3.0, | |
1130 | // but MSAA Textures - only in OpenGL ES 3.1+ | |
1131 | ::glGetIntegerv (GL_MAX_SAMPLES, &myMaxMsaaSamples); | |
1132 | } | |
ca3c13d1 | 1133 | |
e99a2f7c | 1134 | hasUintIndex = IsGlGreaterEqual (3, 0) |
1135 | || CheckExtension ("GL_OES_element_index_uint"); | |
1136 | hasHighp = CheckExtension ("GL_OES_fragment_precision_high"); | |
ca3c13d1 | 1137 | GLint aRange[2] = {0, 0}; |
447c4115 | 1138 | GLint aPrec = 0; |
1139 | ::glGetShaderPrecisionFormat (GL_FRAGMENT_SHADER, GL_HIGH_FLOAT, aRange, &aPrec); | |
1140 | if (aPrec != 0) | |
ca3c13d1 | 1141 | { |
1142 | hasHighp = Standard_True; | |
1143 | } | |
74fb257d | 1144 | |
1145 | arbTexFloat = IsGlGreaterEqual (3, 0) | |
1146 | && FindProc ("glTexImage3D", myFuncs->glTexImage3D); | |
20aeeb7b | 1147 | |
1148 | const Standard_Boolean hasTexBuffer32 = IsGlGreaterEqual (3, 2) && FindProc ("glTexBuffer", myFuncs->glTexBuffer); | |
1149 | const Standard_Boolean hasExtTexBuffer = CheckExtension ("GL_EXT_texture_buffer") && FindProc ("glTexBufferEXT", myFuncs->glTexBuffer); | |
1150 | ||
1151 | if (hasTexBuffer32 || hasExtTexBuffer) | |
1152 | { | |
1153 | arbTBO = reinterpret_cast<OpenGl_ArbTBO*> (myFuncs.get()); | |
1154 | } | |
ca3c13d1 | 1155 | #else |
1156 | ||
1157 | myTexClamp = IsGlGreaterEqual (1, 2) ? GL_CLAMP_TO_EDGE : GL_CLAMP; | |
1158 | ||
1159 | hasTexRGBA8 = Standard_True; | |
74fb257d | 1160 | arbNPTW = CheckExtension ("GL_ARB_texture_non_power_of_two"); |
1161 | arbTexFloat = IsGlGreaterEqual (3, 0) | |
1162 | || CheckExtension ("GL_ARB_texture_float"); | |
1163 | extBgra = CheckExtension ("GL_EXT_bgra"); | |
1164 | extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic"); | |
1165 | extPDS = CheckExtension ("GL_EXT_packed_depth_stencil"); | |
1166 | atiMem = CheckExtension ("GL_ATI_meminfo"); | |
1167 | nvxMem = CheckExtension ("GL_NVX_gpu_memory_info"); | |
bf75be98 | 1168 | |
ca3c13d1 | 1169 | GLint aStereo = GL_FALSE; |
b5ac8292 | 1170 | glGetIntegerv (GL_STEREO, &aStereo); |
1171 | myIsStereoBuffers = aStereo == 1; | |
1172 | ||
ca3c13d1 | 1173 | // get number of maximum clipping planes |
1174 | glGetIntegerv (GL_MAX_CLIP_PLANES, &myMaxClipPlanes); | |
1175 | #endif | |
1176 | ||
1177 | glGetIntegerv (GL_MAX_TEXTURE_SIZE, &myMaxTexDim); | |
1178 | ||
bf75be98 | 1179 | if (extAnis) |
1180 | { | |
1181 | glGetIntegerv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &myAnisoMax); | |
1182 | } | |
f0430952 | 1183 | |
4269bd1b | 1184 | myClippingState.Init (myMaxClipPlanes); |
1185 | ||
ca3c13d1 | 1186 | #if !defined(GL_ES_VERSION_2_0) |
1187 | ||
01ca42b2 | 1188 | bool has12 = false; |
1189 | bool has13 = false; | |
1190 | bool has14 = false; | |
1191 | bool has15 = false; | |
1192 | bool has20 = false; | |
1193 | bool has21 = false; | |
1194 | bool has30 = false; | |
1195 | bool has31 = false; | |
1196 | bool has32 = false; | |
1197 | bool has33 = false; | |
1198 | bool has40 = false; | |
1199 | bool has41 = false; | |
1200 | bool has42 = false; | |
1201 | bool has43 = false; | |
1202 | bool has44 = false; | |
1203 | ||
1204 | //! Make record shorter to retrieve function pointer using variable with same name | |
1205 | #define FindProcShort(theFunc) FindProc(#theFunc, myFuncs->theFunc) | |
1206 | ||
4e1523ef | 1207 | // retrieve platform-dependent extensions |
f978241f | 1208 | #if defined(HAVE_EGL) |
1209 | // | |
1210 | #elif defined(_WIN32) | |
01ca42b2 | 1211 | if (FindProcShort (wglGetExtensionsStringARB)) |
1212 | { | |
1213 | const char* aWglExts = myFuncs->wglGetExtensionsStringARB (wglGetCurrentDC()); | |
1214 | if (CheckExtension (aWglExts, "WGL_EXT_swap_control")) | |
1215 | { | |
1216 | FindProcShort (wglSwapIntervalEXT); | |
1217 | } | |
1218 | if (CheckExtension (aWglExts, "WGL_ARB_pixel_format")) | |
1219 | { | |
1220 | FindProcShort (wglChoosePixelFormatARB); | |
1221 | } | |
1222 | if (CheckExtension (aWglExts, "WGL_ARB_create_context_profile")) | |
1223 | { | |
1224 | FindProcShort (wglCreateContextAttribsARB); | |
1225 | } | |
1226 | if (CheckExtension (aWglExts, "WGL_NV_DX_interop")) | |
1227 | { | |
1228 | FindProcShort (wglDXSetResourceShareHandleNV); | |
1229 | FindProcShort (wglDXOpenDeviceNV); | |
1230 | FindProcShort (wglDXCloseDeviceNV); | |
1231 | FindProcShort (wglDXRegisterObjectNV); | |
1232 | FindProcShort (wglDXUnregisterObjectNV); | |
1233 | FindProcShort (wglDXObjectAccessNV); | |
1234 | FindProcShort (wglDXLockObjectsNV); | |
1235 | FindProcShort (wglDXUnlockObjectsNV); | |
1236 | } | |
1237 | } | |
f978241f | 1238 | #elif defined(__APPLE__) |
1239 | // | |
1240 | #else | |
1241 | const char* aGlxExts = ::glXQueryExtensionsString ((Display* )myDisplay, DefaultScreen ((Display* )myDisplay)); | |
1242 | if (CheckExtension (aGlxExts, "GLX_EXT_swap_control")) | |
1243 | { | |
1244 | FindProcShort (glXSwapIntervalEXT); | |
1245 | } | |
1246 | if (CheckExtension (aGlxExts, "GLX_SGI_swap_control")) | |
1247 | { | |
1248 | FindProcShort (glXSwapIntervalSGI); | |
1249 | } | |
1250 | //extSwapTear = CheckExtension (aGlxExts, "GLX_EXT_swap_control_tear"); | |
01ca42b2 | 1251 | #endif |
1252 | ||
58655684 | 1253 | // initialize debug context extension |
1254 | if (CheckExtension ("GL_ARB_debug_output")) | |
1255 | { | |
01ca42b2 | 1256 | arbDbg = NULL; |
1257 | if (FindProcShort (glDebugMessageControlARB) | |
1258 | && FindProcShort (glDebugMessageInsertARB) | |
1259 | && FindProcShort (glDebugMessageCallbackARB) | |
1260 | && FindProcShort (glGetDebugMessageLogARB)) | |
58655684 | 1261 | { |
01ca42b2 | 1262 | arbDbg = (OpenGl_ArbDbg* )(&(*myFuncs)); |
58655684 | 1263 | } |
1264 | if (arbDbg != NULL | |
1265 | && caps->contextDebug) | |
1266 | { | |
1267 | // setup default callback | |
4e1523ef | 1268 | myIsGlDebugCtx = Standard_True; |
58655684 | 1269 | arbDbg->glDebugMessageCallbackARB (debugCallbackWrap, this); |
c87535af | 1270 | if (caps->contextSyncDebug) |
1271 | { | |
3b523c4c | 1272 | ::glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS); |
c87535af | 1273 | } |
58655684 | 1274 | } |
1275 | } | |
1276 | ||
01ca42b2 | 1277 | // load OpenGL 1.2 new functions |
1278 | has12 = IsGlGreaterEqual (1, 2) | |
1279 | && FindProcShort (glBlendColor) | |
1280 | && FindProcShort (glBlendEquation) | |
1281 | && FindProcShort (glDrawRangeElements) | |
1282 | && FindProcShort (glTexImage3D) | |
1283 | && FindProcShort (glTexSubImage3D) | |
1284 | && FindProcShort (glCopyTexSubImage3D); | |
1285 | ||
1286 | // load OpenGL 1.3 new functions | |
1287 | has13 = IsGlGreaterEqual (1, 3) | |
1288 | && FindProcShort (glActiveTexture) | |
1289 | && FindProcShort (glSampleCoverage) | |
1290 | && FindProcShort (glCompressedTexImage3D) | |
1291 | && FindProcShort (glCompressedTexImage2D) | |
1292 | && FindProcShort (glCompressedTexImage1D) | |
1293 | && FindProcShort (glCompressedTexSubImage3D) | |
1294 | && FindProcShort (glCompressedTexSubImage2D) | |
1295 | && FindProcShort (glCompressedTexSubImage1D) | |
4e1523ef | 1296 | && FindProcShort (glGetCompressedTexImage); |
1297 | ||
1298 | if (!isCoreProfile) | |
1299 | { | |
1300 | has13 = has13 | |
01ca42b2 | 1301 | && FindProcShort (glClientActiveTexture) |
1302 | && FindProcShort (glMultiTexCoord1d) | |
1303 | && FindProcShort (glMultiTexCoord1dv) | |
1304 | && FindProcShort (glMultiTexCoord1f) | |
1305 | && FindProcShort (glMultiTexCoord1fv) | |
1306 | && FindProcShort (glMultiTexCoord1i) | |
1307 | && FindProcShort (glMultiTexCoord1iv) | |
1308 | && FindProcShort (glMultiTexCoord1s) | |
1309 | && FindProcShort (glMultiTexCoord1sv) | |
1310 | && FindProcShort (glMultiTexCoord2d) | |
1311 | && FindProcShort (glMultiTexCoord2dv) | |
1312 | && FindProcShort (glMultiTexCoord2f) | |
1313 | && FindProcShort (glMultiTexCoord2fv) | |
1314 | && FindProcShort (glMultiTexCoord2i) | |
1315 | && FindProcShort (glMultiTexCoord2iv) | |
1316 | && FindProcShort (glMultiTexCoord2s) | |
1317 | && FindProcShort (glMultiTexCoord2sv) | |
1318 | && FindProcShort (glMultiTexCoord3d) | |
1319 | && FindProcShort (glMultiTexCoord3dv) | |
1320 | && FindProcShort (glMultiTexCoord3f) | |
1321 | && FindProcShort (glMultiTexCoord3fv) | |
1322 | && FindProcShort (glMultiTexCoord3i) | |
1323 | && FindProcShort (glMultiTexCoord3iv) | |
1324 | && FindProcShort (glMultiTexCoord3s) | |
1325 | && FindProcShort (glMultiTexCoord3sv) | |
1326 | && FindProcShort (glMultiTexCoord4d) | |
1327 | && FindProcShort (glMultiTexCoord4dv) | |
1328 | && FindProcShort (glMultiTexCoord4f) | |
1329 | && FindProcShort (glMultiTexCoord4fv) | |
1330 | && FindProcShort (glMultiTexCoord4i) | |
1331 | && FindProcShort (glMultiTexCoord4iv) | |
1332 | && FindProcShort (glMultiTexCoord4s) | |
1333 | && FindProcShort (glMultiTexCoord4sv) | |
1334 | && FindProcShort (glLoadTransposeMatrixf) | |
1335 | && FindProcShort (glLoadTransposeMatrixd) | |
1336 | && FindProcShort (glMultTransposeMatrixf) | |
1337 | && FindProcShort (glMultTransposeMatrixd); | |
4e1523ef | 1338 | } |
01ca42b2 | 1339 | |
1340 | // load OpenGL 1.4 new functions | |
1341 | has14 = IsGlGreaterEqual (1, 4) | |
1342 | && FindProcShort (glBlendFuncSeparate) | |
1343 | && FindProcShort (glMultiDrawArrays) | |
1344 | && FindProcShort (glMultiDrawElements) | |
1345 | && FindProcShort (glPointParameterf) | |
1346 | && FindProcShort (glPointParameterfv) | |
1347 | && FindProcShort (glPointParameteri) | |
1348 | && FindProcShort (glPointParameteriv); | |
1349 | ||
1350 | // load OpenGL 1.5 new functions | |
1351 | has15 = IsGlGreaterEqual (1, 5) | |
1352 | && FindProcShort (glGenQueries) | |
1353 | && FindProcShort (glDeleteQueries) | |
1354 | && FindProcShort (glIsQuery) | |
1355 | && FindProcShort (glBeginQuery) | |
1356 | && FindProcShort (glEndQuery) | |
1357 | && FindProcShort (glGetQueryiv) | |
1358 | && FindProcShort (glGetQueryObjectiv) | |
1359 | && FindProcShort (glGetQueryObjectuiv) | |
1360 | && FindProcShort (glBindBuffer) | |
1361 | && FindProcShort (glDeleteBuffers) | |
1362 | && FindProcShort (glGenBuffers) | |
1363 | && FindProcShort (glIsBuffer) | |
1364 | && FindProcShort (glBufferData) | |
1365 | && FindProcShort (glBufferSubData) | |
1366 | && FindProcShort (glGetBufferSubData) | |
1367 | && FindProcShort (glMapBuffer) | |
1368 | && FindProcShort (glUnmapBuffer) | |
1369 | && FindProcShort (glGetBufferParameteriv) | |
1370 | && FindProcShort (glGetBufferPointerv); | |
1371 | ||
1372 | // load OpenGL 2.0 new functions | |
1373 | has20 = IsGlGreaterEqual (2, 0) | |
1374 | && FindProcShort (glBlendEquationSeparate) | |
1375 | && FindProcShort (glDrawBuffers) | |
1376 | && FindProcShort (glStencilOpSeparate) | |
1377 | && FindProcShort (glStencilFuncSeparate) | |
1378 | && FindProcShort (glStencilMaskSeparate) | |
1379 | && FindProcShort (glAttachShader) | |
1380 | && FindProcShort (glBindAttribLocation) | |
1381 | && FindProcShort (glCompileShader) | |
1382 | && FindProcShort (glCreateProgram) | |
1383 | && FindProcShort (glCreateShader) | |
1384 | && FindProcShort (glDeleteProgram) | |
1385 | && FindProcShort (glDeleteShader) | |
1386 | && FindProcShort (glDetachShader) | |
1387 | && FindProcShort (glDisableVertexAttribArray) | |
1388 | && FindProcShort (glEnableVertexAttribArray) | |
1389 | && FindProcShort (glGetActiveAttrib) | |
1390 | && FindProcShort (glGetActiveUniform) | |
1391 | && FindProcShort (glGetAttachedShaders) | |
1392 | && FindProcShort (glGetAttribLocation) | |
1393 | && FindProcShort (glGetProgramiv) | |
1394 | && FindProcShort (glGetProgramInfoLog) | |
1395 | && FindProcShort (glGetShaderiv) | |
1396 | && FindProcShort (glGetShaderInfoLog) | |
1397 | && FindProcShort (glGetShaderSource) | |
1398 | && FindProcShort (glGetUniformLocation) | |
1399 | && FindProcShort (glGetUniformfv) | |
1400 | && FindProcShort (glGetUniformiv) | |
1401 | && FindProcShort (glGetVertexAttribdv) | |
1402 | && FindProcShort (glGetVertexAttribfv) | |
1403 | && FindProcShort (glGetVertexAttribiv) | |
1404 | && FindProcShort (glGetVertexAttribPointerv) | |
1405 | && FindProcShort (glIsProgram) | |
1406 | && FindProcShort (glIsShader) | |
1407 | && FindProcShort (glLinkProgram) | |
1408 | && FindProcShort (glShaderSource) | |
1409 | && FindProcShort (glUseProgram) | |
1410 | && FindProcShort (glUniform1f) | |
1411 | && FindProcShort (glUniform2f) | |
1412 | && FindProcShort (glUniform3f) | |
1413 | && FindProcShort (glUniform4f) | |
1414 | && FindProcShort (glUniform1i) | |
1415 | && FindProcShort (glUniform2i) | |
1416 | && FindProcShort (glUniform3i) | |
1417 | && FindProcShort (glUniform4i) | |
1418 | && FindProcShort (glUniform1fv) | |
1419 | && FindProcShort (glUniform2fv) | |
1420 | && FindProcShort (glUniform3fv) | |
1421 | && FindProcShort (glUniform4fv) | |
1422 | && FindProcShort (glUniform1iv) | |
1423 | && FindProcShort (glUniform2iv) | |
1424 | && FindProcShort (glUniform3iv) | |
1425 | && FindProcShort (glUniform4iv) | |
1426 | && FindProcShort (glUniformMatrix2fv) | |
1427 | && FindProcShort (glUniformMatrix3fv) | |
1428 | && FindProcShort (glUniformMatrix4fv) | |
1429 | && FindProcShort (glValidateProgram) | |
1430 | && FindProcShort (glVertexAttrib1d) | |
1431 | && FindProcShort (glVertexAttrib1dv) | |
1432 | && FindProcShort (glVertexAttrib1f) | |
1433 | && FindProcShort (glVertexAttrib1fv) | |
1434 | && FindProcShort (glVertexAttrib1s) | |
1435 | && FindProcShort (glVertexAttrib1sv) | |
1436 | && FindProcShort (glVertexAttrib2d) | |
1437 | && FindProcShort (glVertexAttrib2dv) | |
1438 | && FindProcShort (glVertexAttrib2f) | |
1439 | && FindProcShort (glVertexAttrib2fv) | |
1440 | && FindProcShort (glVertexAttrib2s) | |
1441 | && FindProcShort (glVertexAttrib2sv) | |
1442 | && FindProcShort (glVertexAttrib3d) | |
1443 | && FindProcShort (glVertexAttrib3dv) | |
1444 | && FindProcShort (glVertexAttrib3f) | |
1445 | && FindProcShort (glVertexAttrib3fv) | |
1446 | && FindProcShort (glVertexAttrib3s) | |
1447 | && FindProcShort (glVertexAttrib3sv) | |
1448 | && FindProcShort (glVertexAttrib4Nbv) | |
1449 | && FindProcShort (glVertexAttrib4Niv) | |
1450 | && FindProcShort (glVertexAttrib4Nsv) | |
1451 | && FindProcShort (glVertexAttrib4Nub) | |
1452 | && FindProcShort (glVertexAttrib4Nubv) | |
1453 | && FindProcShort (glVertexAttrib4Nuiv) | |
1454 | && FindProcShort (glVertexAttrib4Nusv) | |
1455 | && FindProcShort (glVertexAttrib4bv) | |
1456 | && FindProcShort (glVertexAttrib4d) | |
1457 | && FindProcShort (glVertexAttrib4dv) | |
1458 | && FindProcShort (glVertexAttrib4f) | |
1459 | && FindProcShort (glVertexAttrib4fv) | |
1460 | && FindProcShort (glVertexAttrib4iv) | |
1461 | && FindProcShort (glVertexAttrib4s) | |
1462 | && FindProcShort (glVertexAttrib4sv) | |
1463 | && FindProcShort (glVertexAttrib4ubv) | |
1464 | && FindProcShort (glVertexAttrib4uiv) | |
1465 | && FindProcShort (glVertexAttrib4usv) | |
1466 | && FindProcShort (glVertexAttribPointer); | |
1467 | ||
1468 | // load OpenGL 2.1 new functions | |
1469 | has21 = IsGlGreaterEqual (2, 1) | |
1470 | && FindProcShort (glUniformMatrix2x3fv) | |
1471 | && FindProcShort (glUniformMatrix3x2fv) | |
1472 | && FindProcShort (glUniformMatrix2x4fv) | |
1473 | && FindProcShort (glUniformMatrix4x2fv) | |
1474 | && FindProcShort (glUniformMatrix3x4fv) | |
1475 | && FindProcShort (glUniformMatrix4x3fv); | |
1476 | ||
1477 | // load GL_ARB_framebuffer_object (added to OpenGL 3.0 core) | |
1478 | const bool hasFBO = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_framebuffer_object")) | |
1479 | && FindProcShort (glIsRenderbuffer) | |
1480 | && FindProcShort (glBindRenderbuffer) | |
1481 | && FindProcShort (glDeleteRenderbuffers) | |
1482 | && FindProcShort (glGenRenderbuffers) | |
1483 | && FindProcShort (glRenderbufferStorage) | |
1484 | && FindProcShort (glGetRenderbufferParameteriv) | |
1485 | && FindProcShort (glIsFramebuffer) | |
1486 | && FindProcShort (glBindFramebuffer) | |
1487 | && FindProcShort (glDeleteFramebuffers) | |
1488 | && FindProcShort (glGenFramebuffers) | |
1489 | && FindProcShort (glCheckFramebufferStatus) | |
1490 | && FindProcShort (glFramebufferTexture1D) | |
1491 | && FindProcShort (glFramebufferTexture2D) | |
1492 | && FindProcShort (glFramebufferTexture3D) | |
1493 | && FindProcShort (glFramebufferRenderbuffer) | |
1494 | && FindProcShort (glGetFramebufferAttachmentParameteriv) | |
1495 | && FindProcShort (glGenerateMipmap) | |
1496 | && FindProcShort (glBlitFramebuffer) | |
1497 | && FindProcShort (glRenderbufferStorageMultisample) | |
1498 | && FindProcShort (glFramebufferTextureLayer); | |
1499 | ||
1500 | // load GL_ARB_vertex_array_object (added to OpenGL 3.0 core) | |
1501 | const bool hasVAO = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_vertex_array_object")) | |
1502 | && FindProcShort (glBindVertexArray) | |
1503 | && FindProcShort (glDeleteVertexArrays) | |
1504 | && FindProcShort (glGenVertexArrays) | |
1505 | && FindProcShort (glIsVertexArray); | |
1506 | ||
1507 | // load GL_ARB_map_buffer_range (added to OpenGL 3.0 core) | |
1508 | const bool hasMapBufferRange = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_map_buffer_range")) | |
1509 | && FindProcShort (glMapBufferRange) | |
1510 | && FindProcShort (glFlushMappedBufferRange); | |
1511 | ||
1512 | // load OpenGL 3.0 new functions | |
1513 | has30 = IsGlGreaterEqual (3, 0) | |
1514 | && hasFBO | |
1515 | && hasVAO | |
1516 | && hasMapBufferRange | |
1517 | && FindProcShort (glColorMaski) | |
1518 | && FindProcShort (glGetBooleani_v) | |
1519 | && FindProcShort (glGetIntegeri_v) | |
1520 | && FindProcShort (glEnablei) | |
1521 | && FindProcShort (glDisablei) | |
1522 | && FindProcShort (glIsEnabledi) | |
1523 | && FindProcShort (glBeginTransformFeedback) | |
1524 | && FindProcShort (glEndTransformFeedback) | |
1525 | && FindProcShort (glBindBufferRange) | |
1526 | && FindProcShort (glBindBufferBase) | |
1527 | && FindProcShort (glTransformFeedbackVaryings) | |
1528 | && FindProcShort (glGetTransformFeedbackVarying) | |
1529 | && FindProcShort (glClampColor) | |
1530 | && FindProcShort (glBeginConditionalRender) | |
1531 | && FindProcShort (glEndConditionalRender) | |
1532 | && FindProcShort (glVertexAttribIPointer) | |
1533 | && FindProcShort (glGetVertexAttribIiv) | |
1534 | && FindProcShort (glGetVertexAttribIuiv) | |
1535 | && FindProcShort (glVertexAttribI1i) | |
1536 | && FindProcShort (glVertexAttribI2i) | |
1537 | && FindProcShort (glVertexAttribI3i) | |
1538 | && FindProcShort (glVertexAttribI4i) | |
1539 | && FindProcShort (glVertexAttribI1ui) | |
1540 | && FindProcShort (glVertexAttribI2ui) | |
1541 | && FindProcShort (glVertexAttribI3ui) | |
1542 | && FindProcShort (glVertexAttribI4ui) | |
1543 | && FindProcShort (glVertexAttribI1iv) | |
1544 | && FindProcShort (glVertexAttribI2iv) | |
1545 | && FindProcShort (glVertexAttribI3iv) | |
1546 | && FindProcShort (glVertexAttribI4iv) | |
1547 | && FindProcShort (glVertexAttribI1uiv) | |
1548 | && FindProcShort (glVertexAttribI2uiv) | |
1549 | && FindProcShort (glVertexAttribI3uiv) | |
1550 | && FindProcShort (glVertexAttribI4uiv) | |
1551 | && FindProcShort (glVertexAttribI4bv) | |
1552 | && FindProcShort (glVertexAttribI4sv) | |
1553 | && FindProcShort (glVertexAttribI4ubv) | |
1554 | && FindProcShort (glVertexAttribI4usv) | |
1555 | && FindProcShort (glGetUniformuiv) | |
1556 | && FindProcShort (glBindFragDataLocation) | |
1557 | && FindProcShort (glGetFragDataLocation) | |
1558 | && FindProcShort (glUniform1ui) | |
1559 | && FindProcShort (glUniform2ui) | |
1560 | && FindProcShort (glUniform3ui) | |
1561 | && FindProcShort (glUniform4ui) | |
1562 | && FindProcShort (glUniform1uiv) | |
1563 | && FindProcShort (glUniform2uiv) | |
1564 | && FindProcShort (glUniform3uiv) | |
1565 | && FindProcShort (glUniform4uiv) | |
1566 | && FindProcShort (glTexParameterIiv) | |
1567 | && FindProcShort (glTexParameterIuiv) | |
1568 | && FindProcShort (glGetTexParameterIiv) | |
1569 | && FindProcShort (glGetTexParameterIuiv) | |
1570 | && FindProcShort (glClearBufferiv) | |
1571 | && FindProcShort (glClearBufferuiv) | |
1572 | && FindProcShort (glClearBufferfv) | |
1573 | && FindProcShort (glClearBufferfi) | |
1574 | && FindProcShort (glGetStringi); | |
1575 | ||
1576 | // load GL_ARB_uniform_buffer_object (added to OpenGL 3.1 core) | |
1577 | const bool hasUBO = (IsGlGreaterEqual (3, 1) || CheckExtension ("GL_ARB_uniform_buffer_object")) | |
1578 | && FindProcShort (glGetUniformIndices) | |
1579 | && FindProcShort (glGetActiveUniformsiv) | |
1580 | && FindProcShort (glGetActiveUniformName) | |
1581 | && FindProcShort (glGetUniformBlockIndex) | |
1582 | && FindProcShort (glGetActiveUniformBlockiv) | |
1583 | && FindProcShort (glGetActiveUniformBlockName) | |
1584 | && FindProcShort (glUniformBlockBinding); | |
1585 | ||
1586 | // load GL_ARB_copy_buffer (added to OpenGL 3.1 core) | |
1587 | const bool hasCopyBufSubData = (IsGlGreaterEqual (3, 1) || CheckExtension ("GL_ARB_copy_buffer")) | |
1588 | && FindProcShort (glCopyBufferSubData); | |
1589 | ||
1590 | if (has30) | |
2166f0fa | 1591 | { |
01ca42b2 | 1592 | // NPOT textures are required by OpenGL 2.0 specifications |
1593 | // but doesn't hardware accelerated by some ancient OpenGL 2.1 hardware (GeForce FX, RadeOn 9700 etc.) | |
1594 | arbNPTW = Standard_True; | |
1595 | arbTexRG = Standard_True; | |
2166f0fa SK |
1596 | } |
1597 | ||
01ca42b2 | 1598 | // load OpenGL 3.1 new functions |
1599 | has31 = IsGlGreaterEqual (3, 1) | |
1600 | && hasUBO | |
1601 | && hasCopyBufSubData | |
1602 | && FindProcShort (glDrawArraysInstanced) | |
1603 | && FindProcShort (glDrawElementsInstanced) | |
1604 | && FindProcShort (glTexBuffer) | |
1605 | && FindProcShort (glPrimitiveRestartIndex); | |
1606 | ||
1607 | // load GL_ARB_draw_elements_base_vertex (added to OpenGL 3.2 core) | |
1608 | const bool hasDrawElemsBaseVert = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_draw_elements_base_vertex")) | |
1609 | && FindProcShort (glDrawElementsBaseVertex) | |
1610 | && FindProcShort (glDrawRangeElementsBaseVertex) | |
1611 | && FindProcShort (glDrawElementsInstancedBaseVertex) | |
1612 | && FindProcShort (glMultiDrawElementsBaseVertex); | |
1613 | ||
1614 | // load GL_ARB_provoking_vertex (added to OpenGL 3.2 core) | |
1615 | const bool hasProvokingVert = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_provoking_vertex")) | |
1616 | && FindProcShort (glProvokingVertex); | |
1617 | ||
1618 | // load GL_ARB_sync (added to OpenGL 3.2 core) | |
1619 | const bool hasSync = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_sync")) | |
1620 | && FindProcShort (glFenceSync) | |
1621 | && FindProcShort (glIsSync) | |
1622 | && FindProcShort (glDeleteSync) | |
1623 | && FindProcShort (glClientWaitSync) | |
1624 | && FindProcShort (glWaitSync) | |
1625 | && FindProcShort (glGetInteger64v) | |
1626 | && FindProcShort (glGetSynciv); | |
1627 | ||
1628 | // load GL_ARB_texture_multisample (added to OpenGL 3.2 core) | |
1629 | const bool hasTextureMultisample = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_texture_multisample")) | |
1630 | && FindProcShort (glTexImage2DMultisample) | |
1631 | && FindProcShort (glTexImage3DMultisample) | |
1632 | && FindProcShort (glGetMultisamplefv) | |
1633 | && FindProcShort (glSampleMaski); | |
1634 | ||
1635 | // load OpenGL 3.2 new functions | |
1636 | has32 = IsGlGreaterEqual (3, 2) | |
1637 | && hasDrawElemsBaseVert | |
1638 | && hasProvokingVert | |
1639 | && hasSync | |
1640 | && hasTextureMultisample | |
1641 | && FindProcShort (glGetInteger64i_v) | |
1642 | && FindProcShort (glGetBufferParameteri64v) | |
1643 | && FindProcShort (glFramebufferTexture); | |
1644 | ||
1645 | // load GL_ARB_blend_func_extended (added to OpenGL 3.3 core) | |
1646 | const bool hasBlendFuncExtended = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_blend_func_extended")) | |
1647 | && FindProcShort (glBindFragDataLocationIndexed) | |
1648 | && FindProcShort (glGetFragDataIndex); | |
1649 | ||
1650 | // load GL_ARB_sampler_objects (added to OpenGL 3.3 core) | |
1651 | const bool hasSamplerObjects = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_sampler_objects")) | |
1652 | && FindProcShort (glGenSamplers) | |
1653 | && FindProcShort (glDeleteSamplers) | |
1654 | && FindProcShort (glIsSampler) | |
1655 | && FindProcShort (glBindSampler) | |
1656 | && FindProcShort (glSamplerParameteri) | |
1657 | && FindProcShort (glSamplerParameteriv) | |
1658 | && FindProcShort (glSamplerParameterf) | |
1659 | && FindProcShort (glSamplerParameterfv) | |
1660 | && FindProcShort (glSamplerParameterIiv) | |
1661 | && FindProcShort (glSamplerParameterIuiv) | |
1662 | && FindProcShort (glGetSamplerParameteriv) | |
1663 | && FindProcShort (glGetSamplerParameterIiv) | |
1664 | && FindProcShort (glGetSamplerParameterfv) | |
1665 | && FindProcShort (glGetSamplerParameterIuiv); | |
1666 | ||
1667 | // load GL_ARB_timer_query (added to OpenGL 3.3 core) | |
1668 | const bool hasTimerQuery = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_timer_query")) | |
1669 | && FindProcShort (glQueryCounter) | |
1670 | && FindProcShort (glGetQueryObjecti64v) | |
1671 | && FindProcShort (glGetQueryObjectui64v); | |
1672 | ||
1673 | // load GL_ARB_vertex_type_2_10_10_10_rev (added to OpenGL 3.3 core) | |
1674 | const bool hasVertType21010101rev = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_vertex_type_2_10_10_10_rev")) | |
0e628baf | 1675 | && FindProcShort (glVertexAttribP1ui) |
1676 | && FindProcShort (glVertexAttribP1uiv) | |
1677 | && FindProcShort (glVertexAttribP2ui) | |
1678 | && FindProcShort (glVertexAttribP2uiv) | |
1679 | && FindProcShort (glVertexAttribP3ui) | |
1680 | && FindProcShort (glVertexAttribP3uiv) | |
1681 | && FindProcShort (glVertexAttribP4ui) | |
1682 | && FindProcShort (glVertexAttribP4uiv); | |
1683 | ||
1684 | if ( hasVertType21010101rev | |
1685 | && !isCoreProfile) | |
1686 | { | |
1687 | // load deprecated functions | |
1688 | const bool hasVertType21010101revExt = | |
1689 | FindProcShort (glVertexP2ui) | |
01ca42b2 | 1690 | && FindProcShort (glVertexP2uiv) |
1691 | && FindProcShort (glVertexP3ui) | |
1692 | && FindProcShort (glVertexP3uiv) | |
1693 | && FindProcShort (glVertexP4ui) | |
1694 | && FindProcShort (glVertexP4uiv) | |
1695 | && FindProcShort (glTexCoordP1ui) | |
1696 | && FindProcShort (glTexCoordP1uiv) | |
1697 | && FindProcShort (glTexCoordP2ui) | |
1698 | && FindProcShort (glTexCoordP2uiv) | |
1699 | && FindProcShort (glTexCoordP3ui) | |
1700 | && FindProcShort (glTexCoordP3uiv) | |
1701 | && FindProcShort (glTexCoordP4ui) | |
1702 | && FindProcShort (glTexCoordP4uiv) | |
1703 | && FindProcShort (glMultiTexCoordP1ui) | |
1704 | && FindProcShort (glMultiTexCoordP1uiv) | |
1705 | && FindProcShort (glMultiTexCoordP2ui) | |
1706 | && FindProcShort (glMultiTexCoordP2uiv) | |
1707 | && FindProcShort (glMultiTexCoordP3ui) | |
1708 | && FindProcShort (glMultiTexCoordP3uiv) | |
1709 | && FindProcShort (glMultiTexCoordP4ui) | |
1710 | && FindProcShort (glMultiTexCoordP4uiv) | |
1711 | && FindProcShort (glNormalP3ui) | |
1712 | && FindProcShort (glNormalP3uiv) | |
1713 | && FindProcShort (glColorP3ui) | |
1714 | && FindProcShort (glColorP3uiv) | |
1715 | && FindProcShort (glColorP4ui) | |
1716 | && FindProcShort (glColorP4uiv) | |
1717 | && FindProcShort (glSecondaryColorP3ui) | |
0e628baf | 1718 | && FindProcShort (glSecondaryColorP3uiv); |
1719 | (void )hasVertType21010101revExt; | |
1720 | } | |
01ca42b2 | 1721 | |
1722 | // load OpenGL 3.3 extra functions | |
1723 | has33 = IsGlGreaterEqual (3, 3) | |
1724 | && hasBlendFuncExtended | |
1725 | && hasSamplerObjects | |
1726 | && hasTimerQuery | |
1727 | && hasVertType21010101rev | |
1728 | && FindProcShort (glVertexAttribDivisor); | |
1729 | ||
1730 | // load GL_ARB_draw_indirect (added to OpenGL 4.0 core) | |
1731 | const bool hasDrawIndirect = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_draw_indirect")) | |
1732 | && FindProcShort (glDrawArraysIndirect) | |
1733 | && FindProcShort (glDrawElementsIndirect); | |
1734 | ||
1735 | // load GL_ARB_gpu_shader_fp64 (added to OpenGL 4.0 core) | |
1736 | const bool hasShaderFP64 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_gpu_shader_fp64")) | |
1737 | && FindProcShort (glUniform1d) | |
1738 | && FindProcShort (glUniform2d) | |
1739 | && FindProcShort (glUniform3d) | |
1740 | && FindProcShort (glUniform4d) | |
1741 | && FindProcShort (glUniform1dv) | |
1742 | && FindProcShort (glUniform2dv) | |
1743 | && FindProcShort (glUniform3dv) | |
1744 | && FindProcShort (glUniform4dv) | |
1745 | && FindProcShort (glUniformMatrix2dv) | |
1746 | && FindProcShort (glUniformMatrix3dv) | |
1747 | && FindProcShort (glUniformMatrix4dv) | |
1748 | && FindProcShort (glUniformMatrix2x3dv) | |
1749 | && FindProcShort (glUniformMatrix2x4dv) | |
1750 | && FindProcShort (glUniformMatrix3x2dv) | |
1751 | && FindProcShort (glUniformMatrix3x4dv) | |
1752 | && FindProcShort (glUniformMatrix4x2dv) | |
1753 | && FindProcShort (glUniformMatrix4x3dv) | |
1754 | && FindProcShort (glGetUniformdv); | |
1755 | ||
1756 | // load GL_ARB_shader_subroutine (added to OpenGL 4.0 core) | |
1757 | const bool hasShaderSubroutine = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_shader_subroutine")) | |
1758 | && FindProcShort (glGetSubroutineUniformLocation) | |
1759 | && FindProcShort (glGetSubroutineIndex) | |
1760 | && FindProcShort (glGetActiveSubroutineUniformiv) | |
1761 | && FindProcShort (glGetActiveSubroutineUniformName) | |
1762 | && FindProcShort (glGetActiveSubroutineName) | |
1763 | && FindProcShort (glUniformSubroutinesuiv) | |
1764 | && FindProcShort (glGetUniformSubroutineuiv) | |
1765 | && FindProcShort (glGetProgramStageiv); | |
1766 | ||
1767 | // load GL_ARB_tessellation_shader (added to OpenGL 4.0 core) | |
1768 | const bool hasTessellationShader = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_tessellation_shader")) | |
1769 | && FindProcShort (glPatchParameteri) | |
1770 | && FindProcShort (glPatchParameterfv); | |
1771 | ||
1772 | // load GL_ARB_transform_feedback2 (added to OpenGL 4.0 core) | |
1773 | const bool hasTrsfFeedback2 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_transform_feedback2")) | |
1774 | && FindProcShort (glBindTransformFeedback) | |
1775 | && FindProcShort (glDeleteTransformFeedbacks) | |
1776 | && FindProcShort (glGenTransformFeedbacks) | |
1777 | && FindProcShort (glIsTransformFeedback) | |
1778 | && FindProcShort (glPauseTransformFeedback) | |
1779 | && FindProcShort (glResumeTransformFeedback) | |
1780 | && FindProcShort (glDrawTransformFeedback); | |
1781 | ||
1782 | // load GL_ARB_transform_feedback3 (added to OpenGL 4.0 core) | |
1783 | const bool hasTrsfFeedback3 = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_transform_feedback3")) | |
1784 | && FindProcShort (glDrawTransformFeedbackStream) | |
1785 | && FindProcShort (glBeginQueryIndexed) | |
1786 | && FindProcShort (glEndQueryIndexed) | |
1787 | && FindProcShort (glGetQueryIndexediv); | |
1788 | ||
1789 | // load OpenGL 4.0 new functions | |
1790 | has40 = IsGlGreaterEqual (4, 0) | |
1791 | && hasDrawIndirect | |
1792 | && hasShaderFP64 | |
1793 | && hasShaderSubroutine | |
1794 | && hasTessellationShader | |
1795 | && hasTrsfFeedback2 | |
1796 | && hasTrsfFeedback3 | |
1797 | && FindProcShort (glMinSampleShading) | |
1798 | && FindProcShort (glBlendEquationi) | |
1799 | && FindProcShort (glBlendEquationSeparatei) | |
1800 | && FindProcShort (glBlendFunci) | |
1801 | && FindProcShort (glBlendFuncSeparatei); | |
1802 | ||
1803 | // load GL_ARB_ES2_compatibility (added to OpenGL 4.1 core) | |
1804 | const bool hasES2Compatibility = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_ES2_compatibility")) | |
1805 | && FindProcShort (glReleaseShaderCompiler) | |
1806 | && FindProcShort (glShaderBinary) | |
1807 | && FindProcShort (glGetShaderPrecisionFormat) | |
1808 | && FindProcShort (glDepthRangef) | |
1809 | && FindProcShort (glClearDepthf); | |
1810 | ||
1811 | // load GL_ARB_get_program_binary (added to OpenGL 4.1 core) | |
1812 | const bool hasGetProgramBinary = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_get_program_binary")) | |
1813 | && FindProcShort (glGetProgramBinary) | |
1814 | && FindProcShort (glProgramBinary) | |
1815 | && FindProcShort (glProgramParameteri); | |
1816 | ||
1817 | ||
1818 | // load GL_ARB_separate_shader_objects (added to OpenGL 4.1 core) | |
1819 | const bool hasSeparateShaderObjects = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_separate_shader_objects")) | |
1820 | && FindProcShort (glUseProgramStages) | |
1821 | && FindProcShort (glActiveShaderProgram) | |
1822 | && FindProcShort (glCreateShaderProgramv) | |
1823 | && FindProcShort (glBindProgramPipeline) | |
1824 | && FindProcShort (glDeleteProgramPipelines) | |
1825 | && FindProcShort (glGenProgramPipelines) | |
1826 | && FindProcShort (glIsProgramPipeline) | |
1827 | && FindProcShort (glGetProgramPipelineiv) | |
1828 | && FindProcShort (glProgramUniform1i) | |
1829 | && FindProcShort (glProgramUniform1iv) | |
1830 | && FindProcShort (glProgramUniform1f) | |
1831 | && FindProcShort (glProgramUniform1fv) | |
1832 | && FindProcShort (glProgramUniform1d) | |
1833 | && FindProcShort (glProgramUniform1dv) | |
1834 | && FindProcShort (glProgramUniform1ui) | |
1835 | && FindProcShort (glProgramUniform1uiv) | |
1836 | && FindProcShort (glProgramUniform2i) | |
1837 | && FindProcShort (glProgramUniform2iv) | |
1838 | && FindProcShort (glProgramUniform2f) | |
1839 | && FindProcShort (glProgramUniform2fv) | |
1840 | && FindProcShort (glProgramUniform2d) | |
1841 | && FindProcShort (glProgramUniform2dv) | |
1842 | && FindProcShort (glProgramUniform2ui) | |
1843 | && FindProcShort (glProgramUniform2uiv) | |
1844 | && FindProcShort (glProgramUniform3i) | |
1845 | && FindProcShort (glProgramUniform3iv) | |
1846 | && FindProcShort (glProgramUniform3f) | |
1847 | && FindProcShort (glProgramUniform3fv) | |
1848 | && FindProcShort (glProgramUniform3d) | |
1849 | && FindProcShort (glProgramUniform3dv) | |
1850 | && FindProcShort (glProgramUniform3ui) | |
1851 | && FindProcShort (glProgramUniform3uiv) | |
1852 | && FindProcShort (glProgramUniform4i) | |
1853 | && FindProcShort (glProgramUniform4iv) | |
1854 | && FindProcShort (glProgramUniform4f) | |
1855 | && FindProcShort (glProgramUniform4fv) | |
1856 | && FindProcShort (glProgramUniform4d) | |
1857 | && FindProcShort (glProgramUniform4dv) | |
1858 | && FindProcShort (glProgramUniform4ui) | |
1859 | && FindProcShort (glProgramUniform4uiv) | |
1860 | && FindProcShort (glProgramUniformMatrix2fv) | |
1861 | && FindProcShort (glProgramUniformMatrix3fv) | |
1862 | && FindProcShort (glProgramUniformMatrix4fv) | |
1863 | && FindProcShort (glProgramUniformMatrix2dv) | |
1864 | && FindProcShort (glProgramUniformMatrix3dv) | |
1865 | && FindProcShort (glProgramUniformMatrix4dv) | |
1866 | && FindProcShort (glProgramUniformMatrix2x3fv) | |
1867 | && FindProcShort (glProgramUniformMatrix3x2fv) | |
1868 | && FindProcShort (glProgramUniformMatrix2x4fv) | |
1869 | && FindProcShort (glProgramUniformMatrix4x2fv) | |
1870 | && FindProcShort (glProgramUniformMatrix3x4fv) | |
1871 | && FindProcShort (glProgramUniformMatrix4x3fv) | |
1872 | && FindProcShort (glProgramUniformMatrix2x3dv) | |
1873 | && FindProcShort (glProgramUniformMatrix3x2dv) | |
1874 | && FindProcShort (glProgramUniformMatrix2x4dv) | |
1875 | && FindProcShort (glProgramUniformMatrix4x2dv) | |
1876 | && FindProcShort (glProgramUniformMatrix3x4dv) | |
1877 | && FindProcShort (glProgramUniformMatrix4x3dv) | |
1878 | && FindProcShort (glValidateProgramPipeline) | |
1879 | && FindProcShort (glGetProgramPipelineInfoLog); | |
1880 | ||
1881 | // load GL_ARB_vertex_attrib_64bit (added to OpenGL 4.1 core) | |
1882 | const bool hasVertAttrib64bit = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_vertex_attrib_64bit")) | |
1883 | && FindProcShort (glVertexAttribL1d) | |
1884 | && FindProcShort (glVertexAttribL2d) | |
1885 | && FindProcShort (glVertexAttribL3d) | |
1886 | && FindProcShort (glVertexAttribL4d) | |
1887 | && FindProcShort (glVertexAttribL1dv) | |
1888 | && FindProcShort (glVertexAttribL2dv) | |
1889 | && FindProcShort (glVertexAttribL3dv) | |
1890 | && FindProcShort (glVertexAttribL4dv) | |
1891 | && FindProcShort (glVertexAttribLPointer) | |
1892 | && FindProcShort (glGetVertexAttribLdv); | |
1893 | ||
1894 | // load GL_ARB_viewport_array (added to OpenGL 4.1 core) | |
1895 | const bool hasViewportArray = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_viewport_array")) | |
1896 | && FindProcShort (glViewportArrayv) | |
1897 | && FindProcShort (glViewportIndexedf) | |
1898 | && FindProcShort (glViewportIndexedfv) | |
1899 | && FindProcShort (glScissorArrayv) | |
1900 | && FindProcShort (glScissorIndexed) | |
1901 | && FindProcShort (glScissorIndexedv) | |
1902 | && FindProcShort (glDepthRangeArrayv) | |
1903 | && FindProcShort (glDepthRangeIndexed) | |
1904 | && FindProcShort (glGetFloati_v) | |
1905 | && FindProcShort (glGetDoublei_v); | |
1906 | ||
1907 | has41 = IsGlGreaterEqual (4, 1) | |
1908 | && hasES2Compatibility | |
1909 | && hasGetProgramBinary | |
1910 | && hasSeparateShaderObjects | |
1911 | && hasVertAttrib64bit | |
1912 | && hasViewportArray; | |
1913 | ||
1914 | // load GL_ARB_base_instance (added to OpenGL 4.2 core) | |
1915 | const bool hasBaseInstance = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_base_instance")) | |
1916 | && FindProcShort (glDrawArraysInstancedBaseInstance) | |
1917 | && FindProcShort (glDrawElementsInstancedBaseInstance) | |
1918 | && FindProcShort (glDrawElementsInstancedBaseVertexBaseInstance); | |
1919 | ||
1920 | // load GL_ARB_transform_feedback_instanced (added to OpenGL 4.2 core) | |
1921 | const bool hasTrsfFeedbackInstanced = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_transform_feedback_instanced")) | |
1922 | && FindProcShort (glDrawTransformFeedbackInstanced) | |
1923 | && FindProcShort (glDrawTransformFeedbackStreamInstanced); | |
1924 | ||
1925 | // load GL_ARB_internalformat_query (added to OpenGL 4.2 core) | |
1926 | const bool hasInternalFormatQuery = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_internalformat_query")) | |
1927 | && FindProcShort (glGetInternalformativ); | |
1928 | ||
1929 | // load GL_ARB_shader_atomic_counters (added to OpenGL 4.2 core) | |
1930 | const bool hasShaderAtomicCounters = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_shader_atomic_counters")) | |
1931 | && FindProcShort (glGetActiveAtomicCounterBufferiv); | |
1932 | ||
1933 | // load GL_ARB_shader_image_load_store (added to OpenGL 4.2 core) | |
1934 | const bool hasShaderImgLoadStore = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_shader_image_load_store")) | |
1935 | && FindProcShort (glBindImageTexture) | |
1936 | && FindProcShort (glMemoryBarrier); | |
1937 | ||
1938 | // load GL_ARB_texture_storage (added to OpenGL 4.2 core) | |
1939 | const bool hasTextureStorage = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_texture_storage")) | |
1940 | && FindProcShort (glTexStorage1D) | |
1941 | && FindProcShort (glTexStorage2D) | |
c87535af | 1942 | && FindProcShort (glTexStorage3D); |
01ca42b2 | 1943 | |
1944 | has42 = IsGlGreaterEqual (4, 2) | |
1945 | && hasBaseInstance | |
1946 | && hasTrsfFeedbackInstanced | |
1947 | && hasInternalFormatQuery | |
1948 | && hasShaderAtomicCounters | |
1949 | && hasShaderImgLoadStore | |
1950 | && hasTextureStorage; | |
1951 | ||
1952 | has43 = IsGlGreaterEqual (4, 3) | |
1953 | && FindProcShort (glClearBufferData) | |
1954 | && FindProcShort (glClearBufferSubData) | |
1955 | && FindProcShort (glDispatchCompute) | |
1956 | && FindProcShort (glDispatchComputeIndirect) | |
1957 | && FindProcShort (glCopyImageSubData) | |
1958 | && FindProcShort (glFramebufferParameteri) | |
1959 | && FindProcShort (glGetFramebufferParameteriv) | |
1960 | && FindProcShort (glGetInternalformati64v) | |
1961 | && FindProcShort (glInvalidateTexSubImage) | |
1962 | && FindProcShort (glInvalidateTexImage) | |
1963 | && FindProcShort (glInvalidateBufferSubData) | |
1964 | && FindProcShort (glInvalidateBufferData) | |
1965 | && FindProcShort (glInvalidateFramebuffer) | |
1966 | && FindProcShort (glInvalidateSubFramebuffer) | |
1967 | && FindProcShort (glMultiDrawArraysIndirect) | |
1968 | && FindProcShort (glMultiDrawElementsIndirect) | |
1969 | && FindProcShort (glGetProgramInterfaceiv) | |
1970 | && FindProcShort (glGetProgramResourceIndex) | |
1971 | && FindProcShort (glGetProgramResourceName) | |
1972 | && FindProcShort (glGetProgramResourceiv) | |
1973 | && FindProcShort (glGetProgramResourceLocation) | |
1974 | && FindProcShort (glGetProgramResourceLocationIndex) | |
1975 | && FindProcShort (glShaderStorageBlockBinding) | |
1976 | && FindProcShort (glTexBufferRange) | |
1977 | && FindProcShort (glTexStorage2DMultisample) | |
1978 | && FindProcShort (glTexStorage3DMultisample) | |
1979 | && FindProcShort (glTextureView) | |
1980 | && FindProcShort (glBindVertexBuffer) | |
1981 | && FindProcShort (glVertexAttribFormat) | |
1982 | && FindProcShort (glVertexAttribIFormat) | |
1983 | && FindProcShort (glVertexAttribLFormat) | |
1984 | && FindProcShort (glVertexAttribBinding) | |
1985 | && FindProcShort (glVertexBindingDivisor) | |
1986 | && FindProcShort (glDebugMessageControl) | |
1987 | && FindProcShort (glDebugMessageInsert) | |
1988 | && FindProcShort (glDebugMessageCallback) | |
1989 | && FindProcShort (glGetDebugMessageLog) | |
1990 | && FindProcShort (glPushDebugGroup) | |
1991 | && FindProcShort (glPopDebugGroup) | |
1992 | && FindProcShort (glObjectLabel) | |
1993 | && FindProcShort (glGetObjectLabel) | |
1994 | && FindProcShort (glObjectPtrLabel) | |
1995 | && FindProcShort (glGetObjectPtrLabel); | |
1996 | ||
1997 | // load GL_ARB_clear_texture (added to OpenGL 4.4 core) | |
1998 | bool arbTexClear = (IsGlGreaterEqual (4, 4) || CheckExtension ("GL_ARB_clear_texture")) | |
1999 | && FindProcShort (glClearTexImage) | |
2000 | && FindProcShort (glClearTexSubImage); | |
2001 | ||
2002 | has44 = IsGlGreaterEqual (4, 4) | |
2003 | && arbTexClear | |
2004 | && FindProcShort (glBufferStorage) | |
2005 | && FindProcShort (glBindBuffersBase) | |
2006 | && FindProcShort (glBindBuffersRange) | |
2007 | && FindProcShort (glBindTextures) | |
2008 | && FindProcShort (glBindSamplers) | |
2009 | && FindProcShort (glBindImageTextures) | |
2010 | && FindProcShort (glBindVertexBuffers); | |
2011 | ||
5e27df78 | 2012 | // initialize TBO extension (ARB) |
01ca42b2 | 2013 | if (!has31 |
2014 | && CheckExtension ("GL_ARB_texture_buffer_object") | |
2015 | && FindProc ("glTexBufferARB", myFuncs->glTexBuffer)) | |
5e27df78 | 2016 | { |
01ca42b2 | 2017 | arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs)); |
5e27df78 | 2018 | } |
25ef750e | 2019 | arbTboRGB32 = CheckExtension ("GL_ARB_texture_buffer_object_rgb32"); |
5e27df78 | 2020 | |
2021 | // initialize hardware instancing extension (ARB) | |
01ca42b2 | 2022 | if (!has31 |
2023 | && CheckExtension ("GL_ARB_draw_instanced") | |
2024 | && FindProc ("glDrawArraysInstancedARB", myFuncs->glDrawArraysInstanced) | |
2025 | && FindProc ("glDrawElementsInstancedARB", myFuncs->glDrawElementsInstanced)) | |
5e27df78 | 2026 | { |
01ca42b2 | 2027 | arbIns = (OpenGl_ArbIns* )(&(*myFuncs)); |
5e27df78 | 2028 | } |
2029 | ||
01ca42b2 | 2030 | // initialize FBO extension (ARB) |
2031 | if (hasFBO) | |
2166f0fa | 2032 | { |
b86bb3df | 2033 | arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs)); |
2034 | arbFBOBlit = (OpenGl_ArbFBOBlit* )(&(*myFuncs)); | |
01ca42b2 | 2035 | extPDS = Standard_True; // extension for EXT, but part of ARB |
2166f0fa | 2036 | } |
5f8b738e | 2037 | |
37eb4787 | 2038 | // initialize GS extension (EXT) |
01ca42b2 | 2039 | if (CheckExtension ("GL_EXT_geometry_shader4") |
2040 | && FindProcShort (glProgramParameteriEXT)) | |
37eb4787 | 2041 | { |
01ca42b2 | 2042 | extGS = (OpenGl_ExtGS* )(&(*myFuncs)); |
37eb4787 | 2043 | } |
2044 | ||
25ef750e | 2045 | // initialize bindless texture extension (ARB) |
2046 | if (CheckExtension ("GL_ARB_bindless_texture") | |
2047 | && FindProcShort (glGetTextureHandleARB) | |
2048 | && FindProcShort (glGetTextureSamplerHandleARB) | |
2049 | && FindProcShort (glMakeTextureHandleResidentARB) | |
2050 | && FindProcShort (glMakeTextureHandleNonResidentARB) | |
2051 | && FindProcShort (glGetImageHandleARB) | |
2052 | && FindProcShort (glMakeImageHandleResidentARB) | |
2053 | && FindProcShort (glMakeImageHandleNonResidentARB) | |
2054 | && FindProcShort (glUniformHandleui64ARB) | |
2055 | && FindProcShort (glUniformHandleui64vARB) | |
2056 | && FindProcShort (glProgramUniformHandleui64ARB) | |
2057 | && FindProcShort (glProgramUniformHandleui64vARB) | |
2058 | && FindProcShort (glIsTextureHandleResidentARB) | |
2059 | && FindProcShort (glIsImageHandleResidentARB) | |
2060 | && FindProcShort (glVertexAttribL1ui64ARB) | |
2061 | && FindProcShort (glVertexAttribL1ui64vARB) | |
2062 | && FindProcShort (glGetVertexAttribLui64vARB)) | |
2063 | { | |
2064 | arbTexBindless = (OpenGl_ArbTexBindless* )(&(*myFuncs)); | |
2065 | } | |
2066 | ||
01ca42b2 | 2067 | if (!has12) |
86325709 | 2068 | { |
ee51a9fe | 2069 | checkWrongVersion (1, 2); |
86325709 | 2070 | myGlVerMajor = 1; |
2071 | myGlVerMinor = 1; | |
2072 | return; | |
5f8b738e | 2073 | } |
01ca42b2 | 2074 | else if (!has13) |
5f8b738e | 2075 | { |
ee51a9fe | 2076 | checkWrongVersion (1, 3); |
01ca42b2 | 2077 | myGlVerMajor = 1; |
2078 | myGlVerMinor = 2; | |
2079 | return; | |
5f8b738e | 2080 | } |
01ca42b2 | 2081 | else if (!has14) |
5f8b738e | 2082 | { |
ee51a9fe | 2083 | checkWrongVersion (1, 4); |
86325709 | 2084 | myGlVerMajor = 1; |
01ca42b2 | 2085 | myGlVerMinor = 3; |
86325709 | 2086 | return; |
5f8b738e | 2087 | } |
01ca42b2 | 2088 | else if (!has15) |
86325709 | 2089 | { |
ee51a9fe | 2090 | checkWrongVersion (1, 5); |
01ca42b2 | 2091 | myGlVerMajor = 1; |
2092 | myGlVerMinor = 4; | |
2093 | return; | |
5f8b738e | 2094 | } |
4e1523ef | 2095 | if (!isCoreProfile) |
2096 | { | |
2097 | core15 = (OpenGl_GlCore15* )(&(*myFuncs)); | |
2098 | } | |
01ca42b2 | 2099 | core15fwd = (OpenGl_GlCore15Fwd* )(&(*myFuncs)); |
2100 | ||
2101 | if (!has20) | |
86325709 | 2102 | { |
ee51a9fe | 2103 | checkWrongVersion (2, 0); |
2104 | myGlVerMajor = 1; | |
2105 | myGlVerMinor = 5; | |
2106 | return; | |
2107 | } | |
2108 | ||
2109 | const char* aGlslVer = (const char* )::glGetString (GL_SHADING_LANGUAGE_VERSION); | |
2110 | if (aGlslVer == NULL | |
2111 | || *aGlslVer == '\0') | |
2112 | { | |
2113 | // broken context has been detected | |
2114 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() | |
2115 | + "Error! OpenGL context reports version " | |
2116 | + myGlVerMajor + "." + myGlVerMinor | |
2117 | + " but reports wrong GLSL version"; | |
3b523c4c | 2118 | PushMessage (GL_DEBUG_SOURCE_APPLICATION, |
2119 | GL_DEBUG_TYPE_ERROR, | |
ee51a9fe | 2120 | 0, |
3b523c4c | 2121 | GL_DEBUG_SEVERITY_HIGH, |
ee51a9fe | 2122 | aMsg); |
86325709 | 2123 | myGlVerMajor = 1; |
01ca42b2 | 2124 | myGlVerMinor = 5; |
86325709 | 2125 | return; |
5f8b738e | 2126 | } |
01ca42b2 | 2127 | |
4e1523ef | 2128 | if (!isCoreProfile) |
2129 | { | |
2130 | core20 = (OpenGl_GlCore20* )(&(*myFuncs)); | |
2131 | } | |
01ca42b2 | 2132 | core20fwd = (OpenGl_GlCore20Fwd* )(&(*myFuncs)); |
2133 | ||
2134 | if (!has21) | |
5f8b738e | 2135 | { |
ee51a9fe | 2136 | checkWrongVersion (2, 1); |
01ca42b2 | 2137 | myGlVerMajor = 2; |
2138 | myGlVerMinor = 0; | |
2139 | return; | |
86325709 | 2140 | } |
01ca42b2 | 2141 | |
2142 | if (!has30) | |
86325709 | 2143 | { |
ee51a9fe | 2144 | checkWrongVersion (3, 0); |
01ca42b2 | 2145 | myGlVerMajor = 2; |
2146 | myGlVerMinor = 1; | |
86325709 | 2147 | return; |
2148 | } | |
01ca42b2 | 2149 | |
3c4b62a4 | 2150 | // MSAA RenderBuffers have been defined in OpenGL 3.0, |
2151 | // but MSAA Textures - only in OpenGL 3.2+ | |
2152 | if (!has32 | |
2153 | && CheckExtension ("GL_ARB_texture_multisample") | |
2154 | && FindProcShort (glTexImage2DMultisample)) | |
2155 | { | |
2156 | GLint aNbColorSamples = 0, aNbDepthSamples = 0; | |
2157 | ::glGetIntegerv (GL_MAX_COLOR_TEXTURE_SAMPLES, &aNbColorSamples); | |
2158 | ::glGetIntegerv (GL_MAX_DEPTH_TEXTURE_SAMPLES, &aNbDepthSamples); | |
2159 | myMaxMsaaSamples = Min (aNbColorSamples, aNbDepthSamples); | |
2160 | } | |
2161 | if (!has43 | |
2162 | && CheckExtension ("GL_ARB_texture_storage_multisample") | |
2163 | && FindProcShort (glTexStorage2DMultisample)) | |
2164 | { | |
2165 | // | |
2166 | } | |
2167 | ||
01ca42b2 | 2168 | if (!has31) |
2169 | { | |
ee51a9fe | 2170 | checkWrongVersion (3, 1); |
01ca42b2 | 2171 | myGlVerMajor = 3; |
2172 | myGlVerMinor = 0; | |
2173 | return; | |
2174 | } | |
2175 | arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs)); | |
2176 | arbIns = (OpenGl_ArbIns* )(&(*myFuncs)); | |
2177 | ||
2178 | if (!has32) | |
86325709 | 2179 | { |
ee51a9fe | 2180 | checkWrongVersion (3, 2); |
01ca42b2 | 2181 | myGlVerMajor = 3; |
2182 | myGlVerMinor = 1; | |
2183 | return; | |
86325709 | 2184 | } |
4e1523ef | 2185 | core32 = (OpenGl_GlCore32* )(&(*myFuncs)); |
2186 | if (isCoreProfile) | |
2187 | { | |
2188 | core32->glGenVertexArrays (1, &myDefaultVao); | |
2189 | } | |
2190 | else | |
2191 | { | |
2192 | core32back = (OpenGl_GlCore32Back* )(&(*myFuncs)); | |
2193 | } | |
3c4b62a4 | 2194 | ::glGetIntegerv (GL_MAX_SAMPLES, &myMaxMsaaSamples); |
01ca42b2 | 2195 | |
2196 | if (!has33) | |
86325709 | 2197 | { |
ee51a9fe | 2198 | checkWrongVersion (3, 3); |
01ca42b2 | 2199 | myGlVerMajor = 3; |
2200 | myGlVerMinor = 2; | |
2201 | return; | |
86325709 | 2202 | } |
4e1523ef | 2203 | core33 = (OpenGl_GlCore33* )(&(*myFuncs)); |
2204 | if (!isCoreProfile) | |
2205 | { | |
2206 | core33back = (OpenGl_GlCore33Back* )(&(*myFuncs)); | |
2207 | } | |
25ef750e | 2208 | |
2209 | // initialize sampler object | |
2210 | myTexSampler = new OpenGl_Sampler(); | |
2211 | myTexSampler->Init (*this); | |
01ca42b2 | 2212 | |
2213 | if (!has40) | |
86325709 | 2214 | { |
ee51a9fe | 2215 | checkWrongVersion (4, 0); |
01ca42b2 | 2216 | myGlVerMajor = 3; |
2217 | myGlVerMinor = 3; | |
2218 | return; | |
2219 | } | |
25ef750e | 2220 | arbTboRGB32 = Standard_True; // in core since OpenGL 4.0 |
01ca42b2 | 2221 | |
2222 | if (!has41) | |
2223 | { | |
ee51a9fe | 2224 | checkWrongVersion (4, 1); |
01ca42b2 | 2225 | myGlVerMajor = 4; |
2226 | myGlVerMinor = 0; | |
2227 | return; | |
2228 | } | |
4e1523ef | 2229 | core41 = (OpenGl_GlCore41* )(&(*myFuncs)); |
2230 | if (!isCoreProfile) | |
2231 | { | |
2232 | core41back = (OpenGl_GlCore41Back* )(&(*myFuncs)); | |
2233 | } | |
01ca42b2 | 2234 | |
2235 | if(!has42) | |
2236 | { | |
ee51a9fe | 2237 | checkWrongVersion (4, 2); |
01ca42b2 | 2238 | myGlVerMajor = 4; |
2239 | myGlVerMinor = 1; | |
2240 | return; | |
2241 | } | |
4e1523ef | 2242 | core42 = (OpenGl_GlCore42* )(&(*myFuncs)); |
2243 | if (!isCoreProfile) | |
2244 | { | |
2245 | core42back = (OpenGl_GlCore42Back* )(&(*myFuncs)); | |
2246 | } | |
01ca42b2 | 2247 | |
4e1523ef | 2248 | if (!has43) |
01ca42b2 | 2249 | { |
ee51a9fe | 2250 | checkWrongVersion (4, 3); |
01ca42b2 | 2251 | myGlVerMajor = 4; |
2252 | myGlVerMinor = 2; | |
2253 | return; | |
2254 | } | |
4e1523ef | 2255 | core43 = (OpenGl_GlCore43* )(&(*myFuncs)); |
2256 | if (!isCoreProfile) | |
2257 | { | |
2258 | core43back = (OpenGl_GlCore43Back* )(&(*myFuncs)); | |
2259 | } | |
01ca42b2 | 2260 | |
2261 | if (!has44) | |
2262 | { | |
ee51a9fe | 2263 | checkWrongVersion (4, 4); |
01ca42b2 | 2264 | myGlVerMajor = 4; |
2265 | myGlVerMinor = 3; | |
2266 | return; | |
5f8b738e | 2267 | } |
4e1523ef | 2268 | core44 = (OpenGl_GlCore44* )(&(*myFuncs)); |
2269 | if (!isCoreProfile) | |
2270 | { | |
2271 | core44back = (OpenGl_GlCore44Back* )(&(*myFuncs)); | |
2272 | } | |
ca3c13d1 | 2273 | #endif |
2166f0fa | 2274 | } |
f0430952 | 2275 | |
2276 | // ======================================================================= | |
2277 | // function : MemoryInfo | |
2278 | // purpose : | |
2279 | // ======================================================================= | |
2280 | Standard_Size OpenGl_Context::AvailableMemory() const | |
2281 | { | |
ca3c13d1 | 2282 | #if !defined(GL_ES_VERSION_2_0) |
f0430952 | 2283 | if (atiMem) |
2284 | { | |
2285 | // this is actually information for VBO pool | |
2286 | // however because pools are mostly shared | |
2287 | // it can be used for total GPU memory estimations | |
2288 | GLint aMemInfo[4]; | |
2289 | aMemInfo[0] = 0; | |
2290 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aMemInfo); | |
2291 | // returned value is in KiB, however this maybe changed in future | |
2292 | return Standard_Size(aMemInfo[0]) * 1024; | |
2293 | } | |
2294 | else if (nvxMem) | |
2295 | { | |
2296 | // current available dedicated video memory (in KiB), currently unused GPU memory | |
2297 | GLint aMemInfo = 0; | |
2298 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aMemInfo); | |
2299 | return Standard_Size(aMemInfo) * 1024; | |
2300 | } | |
ca3c13d1 | 2301 | #endif |
f0430952 | 2302 | return 0; |
2303 | } | |
2304 | ||
2305 | // ======================================================================= | |
2306 | // function : MemoryInfo | |
2307 | // purpose : | |
2308 | // ======================================================================= | |
2309 | TCollection_AsciiString OpenGl_Context::MemoryInfo() const | |
2310 | { | |
2311 | TCollection_AsciiString anInfo; | |
ca3c13d1 | 2312 | #if !defined(GL_ES_VERSION_2_0) |
f0430952 | 2313 | if (atiMem) |
2314 | { | |
2315 | GLint aValues[4]; | |
2316 | memset (aValues, 0, sizeof(aValues)); | |
2317 | glGetIntegerv (GL_VBO_FREE_MEMORY_ATI, aValues); | |
2318 | ||
2319 | // total memory free in the pool | |
2320 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValues[0] / 1024) + " MiB\n"; | |
2321 | ||
2322 | // largest available free block in the pool | |
2323 | anInfo += TCollection_AsciiString (" Largest free block: ") + (aValues[1] / 1024) + " MiB\n"; | |
2324 | if (aValues[2] != aValues[0]) | |
2325 | { | |
2326 | // total auxiliary memory free | |
2327 | anInfo += TCollection_AsciiString (" Free memory: ") + (aValues[2] / 1024) + " MiB\n"; | |
2328 | } | |
2329 | } | |
2330 | else if (nvxMem) | |
2331 | { | |
2332 | //current available dedicated video memory (in KiB), currently unused GPU memory | |
2333 | GLint aValue = 0; | |
2334 | glGetIntegerv (GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &aValue); | |
2335 | anInfo += TCollection_AsciiString (" GPU free memory: ") + (aValue / 1024) + " MiB\n"; | |
2336 | ||
2337 | // dedicated video memory, total size (in KiB) of the GPU memory | |
2338 | GLint aDedicated = 0; | |
2339 | glGetIntegerv (GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &aDedicated); | |
2340 | anInfo += TCollection_AsciiString (" GPU memory: ") + (aDedicated / 1024) + " MiB\n"; | |
2341 | ||
2342 | // total available memory, total size (in KiB) of the memory available for allocations | |
2343 | glGetIntegerv (GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &aValue); | |
2344 | if (aValue != aDedicated) | |
2345 | { | |
2346 | // different only for special configurations | |
2347 | anInfo += TCollection_AsciiString (" Total memory: ") + (aValue / 1024) + " MiB\n"; | |
2348 | } | |
2349 | } | |
ca3c13d1 | 2350 | #endif |
f0430952 | 2351 | return anInfo; |
2352 | } | |
5e27df78 | 2353 | |
2354 | ||
2355 | // ======================================================================= | |
2356 | // function : GetResource | |
2357 | // purpose : | |
2358 | // ======================================================================= | |
2359 | const Handle(OpenGl_Resource)& OpenGl_Context::GetResource (const TCollection_AsciiString& theKey) const | |
2360 | { | |
2361 | return mySharedResources->IsBound (theKey) ? mySharedResources->Find (theKey) : NULL_GL_RESOURCE; | |
2362 | } | |
2363 | ||
2364 | // ======================================================================= | |
2365 | // function : ShareResource | |
2366 | // purpose : | |
2367 | // ======================================================================= | |
2368 | Standard_Boolean OpenGl_Context::ShareResource (const TCollection_AsciiString& theKey, | |
2369 | const Handle(OpenGl_Resource)& theResource) | |
2370 | { | |
2371 | if (theKey.IsEmpty() || theResource.IsNull()) | |
2372 | { | |
2373 | return Standard_False; | |
2374 | } | |
2375 | return mySharedResources->Bind (theKey, theResource); | |
2376 | } | |
2377 | ||
2378 | // ======================================================================= | |
2379 | // function : ReleaseResource | |
2380 | // purpose : | |
2381 | // ======================================================================= | |
a174a3c5 | 2382 | void OpenGl_Context::ReleaseResource (const TCollection_AsciiString& theKey, |
2383 | const Standard_Boolean theToDelay) | |
5e27df78 | 2384 | { |
2385 | if (!mySharedResources->IsBound (theKey)) | |
2386 | { | |
2387 | return; | |
2388 | } | |
4796758e | 2389 | auto& aRes = mySharedResources->Find (theKey); |
5e27df78 | 2390 | if (aRes->GetRefCount() > 1) |
2391 | { | |
2392 | return; | |
2393 | } | |
2394 | ||
a174a3c5 | 2395 | if (theToDelay) |
2396 | { | |
2397 | myDelayed->Bind (theKey, 1); | |
2398 | } | |
2399 | else | |
2400 | { | |
2401 | aRes->Release (this); | |
2402 | mySharedResources->UnBind (theKey); | |
2403 | } | |
5e27df78 | 2404 | } |
2405 | ||
2406 | // ======================================================================= | |
5e27df78 | 2407 | // function : ReleaseDelayed |
2408 | // purpose : | |
2409 | // ======================================================================= | |
2410 | void OpenGl_Context::ReleaseDelayed() | |
2411 | { | |
a174a3c5 | 2412 | // release queued elements |
3125ebb6 | 2413 | while (!myUnusedResources->IsEmpty()) |
5e27df78 | 2414 | { |
3125ebb6 | 2415 | myUnusedResources->First()->Release (this); |
2416 | myUnusedResources->RemoveFirst(); | |
5e27df78 | 2417 | } |
a174a3c5 | 2418 | |
265d4508 | 2419 | // release delayed shared resources |
a174a3c5 | 2420 | NCollection_Vector<TCollection_AsciiString> aDeadList; |
2421 | for (NCollection_DataMap<TCollection_AsciiString, Standard_Integer>::Iterator anIter (*myDelayed); | |
2422 | anIter.More(); anIter.Next()) | |
2423 | { | |
2424 | if (++anIter.ChangeValue() <= 2) | |
2425 | { | |
2426 | continue; // postpone release one more frame to ensure noone use it periodically | |
2427 | } | |
2428 | ||
2429 | const TCollection_AsciiString& aKey = anIter.Key(); | |
2430 | if (!mySharedResources->IsBound (aKey)) | |
2431 | { | |
2432 | // mixed unshared strategy delayed/undelayed was used! | |
2433 | aDeadList.Append (aKey); | |
2434 | continue; | |
2435 | } | |
2436 | ||
4796758e | 2437 | auto& aRes = mySharedResources->ChangeFind (aKey); |
a174a3c5 | 2438 | if (aRes->GetRefCount() > 1) |
2439 | { | |
2440 | // should be only 1 instance in mySharedResources | |
2441 | // if not - resource was reused again | |
2442 | aDeadList.Append (aKey); | |
2443 | continue; | |
2444 | } | |
2445 | ||
2446 | // release resource if no one requiested it more than 2 redraw calls | |
2447 | aRes->Release (this); | |
2448 | mySharedResources->UnBind (aKey); | |
2449 | aDeadList.Append (aKey); | |
2450 | } | |
2451 | ||
2452 | for (Standard_Integer anIter = 0; anIter < aDeadList.Length(); ++anIter) | |
2453 | { | |
2454 | myDelayed->UnBind (aDeadList.Value (anIter)); | |
2455 | } | |
5e27df78 | 2456 | } |
7d3e64ef | 2457 | |
2458 | // ======================================================================= | |
2459 | // function : BindProgram | |
2460 | // purpose : | |
2461 | // ======================================================================= | |
8625ef7e | 2462 | Standard_Boolean OpenGl_Context::BindProgram (const Handle(OpenGl_ShaderProgram)& theProgram) |
7d3e64ef | 2463 | { |
8625ef7e | 2464 | if (core20fwd == NULL) |
2465 | { | |
2466 | return Standard_False; | |
2467 | } | |
2468 | ||
7d3e64ef | 2469 | if (theProgram.IsNull() |
2470 | || !theProgram->IsValid()) | |
2471 | { | |
2472 | if (!myActiveProgram.IsNull()) | |
2473 | { | |
2474 | core20fwd->glUseProgram (OpenGl_ShaderProgram::NO_PROGRAM); | |
2475 | myActiveProgram.Nullify(); | |
2476 | } | |
8625ef7e | 2477 | return Standard_False; |
7d3e64ef | 2478 | } |
2479 | ||
2480 | myActiveProgram = theProgram; | |
2481 | core20fwd->glUseProgram (theProgram->ProgramId()); | |
8625ef7e | 2482 | return Standard_True; |
2483 | } | |
2484 | ||
4e1523ef | 2485 | // ======================================================================= |
2486 | // function : BindDefaultVao | |
2487 | // purpose : | |
2488 | // ======================================================================= | |
2489 | void OpenGl_Context::BindDefaultVao() | |
2490 | { | |
2491 | #if !defined(GL_ES_VERSION_2_0) | |
2492 | if (myDefaultVao == 0 | |
2493 | || core32 == NULL) | |
2494 | { | |
2495 | return; | |
2496 | } | |
2497 | ||
2498 | core32->glBindVertexArray (myDefaultVao); | |
2499 | #endif | |
2500 | } | |
2501 | ||
a2e4f780 | 2502 | // ======================================================================= |
2503 | // function : SetDefaultFrameBuffer | |
2504 | // purpose : | |
2505 | // ======================================================================= | |
2506 | Handle(OpenGl_FrameBuffer) OpenGl_Context::SetDefaultFrameBuffer (const Handle(OpenGl_FrameBuffer)& theFbo) | |
2507 | { | |
2508 | Handle(OpenGl_FrameBuffer) aFbo = myDefaultFbo; | |
2509 | myDefaultFbo = theFbo; | |
2510 | return aFbo; | |
2511 | } | |
2512 | ||
8625ef7e | 2513 | // ======================================================================= |
299e0ab9 | 2514 | // function : SetShadingMaterial |
2515 | // purpose : | |
2516 | // ======================================================================= | |
f9ba5c4d | 2517 | void OpenGl_Context::SetShadingMaterial (const OpenGl_AspectFace* theAspect, |
2518 | const OpenGl_Vec4* theHighlightColor) | |
299e0ab9 | 2519 | { |
2520 | if (!myActiveProgram.IsNull()) | |
2521 | { | |
2522 | myActiveProgram->SetUniform (this, | |
2523 | myActiveProgram->GetStateLocation (OpenGl_OCCT_TEXTURE_ENABLE), | |
2524 | theAspect->DoTextureMap()); | |
2525 | myActiveProgram->SetUniform (this, | |
2526 | myActiveProgram->GetStateLocation (OpenGl_OCCT_DISTINGUISH_MODE), | |
2527 | theAspect->DistinguishingMode()); | |
2528 | ||
2529 | OpenGl_Material aParams; | |
2530 | for (Standard_Integer anIndex = 0; anIndex < 2; ++anIndex) | |
2531 | { | |
2532 | const GLint aLoc = myActiveProgram->GetStateLocation (anIndex == 0 | |
2533 | ? OpenGl_OCCT_FRONT_MATERIAL | |
2534 | : OpenGl_OCCT_BACK_MATERIAL); | |
2535 | if (aLoc == OpenGl_ShaderProgram::INVALID_LOCATION) | |
2536 | { | |
2537 | continue; | |
2538 | } | |
2539 | ||
2540 | const OPENGL_SURF_PROP& aProp = anIndex == 0 || theAspect->DistinguishingMode() != TOn | |
2541 | ? theAspect->IntFront() | |
2542 | : theAspect->IntBack(); | |
2543 | aParams.Init (aProp); | |
2544 | aParams.Diffuse.a() = aProp.trans; | |
f9ba5c4d | 2545 | |
2546 | if (theHighlightColor != NULL) | |
2547 | { | |
2548 | aParams.SetColor (*theHighlightColor); | |
2549 | } | |
2550 | ||
299e0ab9 | 2551 | myActiveProgram->SetUniform (this, aLoc, OpenGl_Material::NbOfVec4(), |
2552 | aParams.Packed()); | |
2553 | } | |
2554 | } | |
2555 | } | |
2556 | ||
2557 | // ======================================================================= | |
8625ef7e | 2558 | // function : SetColor4fv |
2559 | // purpose : | |
2560 | // ======================================================================= | |
2561 | void OpenGl_Context::SetColor4fv (const OpenGl_Vec4& theColor) | |
2562 | { | |
2563 | if (!myActiveProgram.IsNull()) | |
2564 | { | |
2565 | myActiveProgram->SetUniform (this, myActiveProgram->GetStateLocation (OpenGl_OCCT_COLOR), theColor); | |
2566 | } | |
2567 | #if !defined(GL_ES_VERSION_2_0) | |
2568 | else if (core11 != NULL) | |
2569 | { | |
2570 | core11->glColor4fv (theColor.GetData()); | |
2571 | } | |
2572 | #endif | |
2573 | } | |
2574 | ||
ac116c22 | 2575 | // ======================================================================= |
2576 | // function : SetTypeOfLine | |
2577 | // purpose : | |
2578 | // ======================================================================= | |
2579 | void OpenGl_Context::SetTypeOfLine (const Aspect_TypeOfLine theType, | |
2580 | const Standard_ShortReal theFactor) | |
2581 | { | |
2582 | Standard_Integer aPattern = 0xFFFF; | |
2583 | switch (theType) | |
2584 | { | |
2585 | case Aspect_TOL_DASH: | |
2586 | { | |
2587 | aPattern = 0xFFC0; | |
2588 | break; | |
2589 | } | |
2590 | case Aspect_TOL_DOT: | |
2591 | { | |
2592 | aPattern = 0xCCCC; | |
2593 | break; | |
2594 | } | |
2595 | case Aspect_TOL_DOTDASH: | |
2596 | { | |
2597 | aPattern = 0xFF18; | |
2598 | break; | |
2599 | } | |
2600 | case Aspect_TOL_SOLID: | |
2601 | { | |
2602 | aPattern = 0xFFFF; | |
2603 | break; | |
2604 | } | |
2605 | case Aspect_TOL_USERDEFINED: | |
2606 | { | |
2607 | aPattern = 0xFF24; | |
2608 | break; | |
2609 | } | |
2610 | } | |
2611 | ||
c04c30b3 | 2612 | if (!myActiveProgram.IsNull()) |
ac116c22 | 2613 | { |
2614 | myActiveProgram->SetUniform (this, "uPattern", aPattern); | |
2615 | myActiveProgram->SetUniform (this, "uFactor", theFactor); | |
2616 | return; | |
2617 | } | |
2618 | ||
2619 | #if !defined(GL_ES_VERSION_2_0) | |
2620 | if (theType != Aspect_TOL_SOLID) | |
2621 | { | |
2622 | #ifdef HAVE_GL2PS | |
2623 | if (IsFeedback()) | |
2624 | { | |
2625 | gl2psEnable (GL2PS_LINE_STIPPLE); | |
2626 | } | |
2627 | #endif | |
2628 | ||
2629 | if (core11 != NULL) | |
2630 | { | |
2631 | core11fwd->glEnable (GL_LINE_STIPPLE); | |
2632 | ||
2633 | core11->glLineStipple (static_cast<GLint> (theFactor), | |
2634 | static_cast<GLushort> (aPattern)); | |
2635 | } | |
2636 | } | |
2637 | else | |
2638 | { | |
2639 | if (core11 != NULL) | |
2640 | { | |
2641 | core11fwd->glDisable (GL_LINE_STIPPLE); | |
2642 | } | |
2643 | ||
2644 | #ifdef HAVE_GL2PS | |
2645 | if (IsFeedback()) | |
2646 | { | |
2647 | gl2psDisable (GL2PS_LINE_STIPPLE); | |
2648 | } | |
2649 | #endif | |
2650 | } | |
2651 | #endif | |
2652 | } | |
2653 | ||
2654 | // ======================================================================= | |
2655 | // function : SetLineWidth | |
2656 | // purpose : | |
2657 | // ======================================================================= | |
2658 | void OpenGl_Context::SetLineWidth (const Standard_ShortReal theWidth) | |
2659 | { | |
2660 | if (core11 != NULL) | |
2661 | { | |
2662 | // glLineWidth() is still defined within Core Profile, but has no effect with values != 1.0f | |
75c262a9 | 2663 | core11fwd->glLineWidth (theWidth * myResolutionRatio); |
ac116c22 | 2664 | } |
2665 | #ifdef HAVE_GL2PS | |
2666 | if (IsFeedback()) | |
2667 | { | |
2668 | gl2psLineWidth (theWidth); | |
2669 | } | |
2670 | #endif | |
2671 | } | |
2672 | ||
79f4f036 | 2673 | // ======================================================================= |
2674 | // function : SetTextureMatrix | |
2675 | // purpose : | |
2676 | // ======================================================================= | |
2677 | void OpenGl_Context::SetTextureMatrix (const Handle(Graphic3d_TextureParams)& theParams) | |
2678 | { | |
2679 | if (theParams.IsNull()) | |
2680 | { | |
2681 | return; | |
2682 | } | |
2683 | else if (!myActiveProgram.IsNull()) | |
2684 | { | |
2685 | const GLint aUniLoc = myActiveProgram->GetStateLocation (OpenGl_OCCT_TEXTURE_TRSF2D); | |
2686 | if (aUniLoc == OpenGl_ShaderProgram::INVALID_LOCATION) | |
2687 | { | |
2688 | return; | |
2689 | } | |
2690 | ||
2691 | // pack transformation parameters | |
2692 | OpenGl_Vec4 aTrsf[2]; | |
2693 | aTrsf[0].xy() = theParams->Translation(); | |
2694 | aTrsf[0].zw() = theParams->Scale(); | |
2695 | aTrsf[1].x() = std::sin (-theParams->Rotation() * static_cast<float> (M_PI / 180.0)); | |
2696 | aTrsf[1].y() = std::cos (-theParams->Rotation() * static_cast<float> (M_PI / 180.0)); | |
2697 | myActiveProgram->SetUniform (this, aUniLoc, 2, aTrsf); | |
2698 | return; | |
2699 | } | |
2700 | ||
2701 | #if !defined(GL_ES_VERSION_2_0) | |
2702 | if (core11 != NULL) | |
2703 | { | |
2704 | GLint aMatrixMode = GL_TEXTURE; | |
2705 | ::glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode); | |
2706 | ||
2707 | core11->glMatrixMode (GL_TEXTURE); | |
2708 | OpenGl_Mat4 aTextureMat; | |
2709 | const Graphic3d_Vec2& aScale = theParams->Scale(); | |
2710 | const Graphic3d_Vec2& aTrans = theParams->Translation(); | |
2711 | Graphic3d_TransformUtils::Scale (aTextureMat, aScale.x(), aScale.y(), 1.0f); | |
2712 | Graphic3d_TransformUtils::Translate (aTextureMat, -aTrans.x(), -aTrans.y(), 0.0f); | |
2713 | Graphic3d_TransformUtils::Rotate (aTextureMat, -theParams->Rotation(), 0.0f, 0.0f, 1.0f); | |
2714 | core11->glLoadMatrixf (aTextureMat); | |
2715 | core11->glMatrixMode (aMatrixMode); | |
2716 | } | |
2717 | #endif | |
2718 | } | |
2719 | ||
8625ef7e | 2720 | // ======================================================================= |
2721 | // function : SetPointSize | |
2722 | // purpose : | |
2723 | // ======================================================================= | |
2724 | void OpenGl_Context::SetPointSize (const Standard_ShortReal theSize) | |
2725 | { | |
2726 | if (!myActiveProgram.IsNull()) | |
2727 | { | |
2728 | myActiveProgram->SetUniform (this, myActiveProgram->GetStateLocation (OpenGl_OCCT_POINT_SIZE), theSize); | |
2729 | #if !defined(GL_ES_VERSION_2_0) | |
2730 | //myContext->core11fwd->glEnable (GL_VERTEX_PROGRAM_POINT_SIZE); | |
2731 | #endif | |
2732 | } | |
2733 | #if !defined(GL_ES_VERSION_2_0) | |
2734 | //else | |
2735 | { | |
2736 | core11fwd->glPointSize (theSize); | |
2737 | if (core20fwd != NULL) | |
2738 | { | |
2739 | //myContext->core11fwd->glDisable (GL_VERTEX_PROGRAM_POINT_SIZE); | |
2740 | } | |
2741 | } | |
2742 | #endif | |
7d3e64ef | 2743 | } |
7d9e854b | 2744 | |
2745 | // ======================================================================= | |
2746 | // function : SetGlNormalizeEnabled | |
2747 | // purpose : | |
2748 | // ======================================================================= | |
2749 | Standard_Boolean OpenGl_Context::SetGlNormalizeEnabled (Standard_Boolean isEnabled) | |
2750 | { | |
2751 | if (isEnabled == myIsGlNormalizeEnabled) | |
2752 | { | |
2753 | return myIsGlNormalizeEnabled; | |
2754 | } | |
2755 | ||
2756 | Standard_Boolean anOldGlNormalize = myIsGlNormalizeEnabled; | |
2757 | ||
2758 | myIsGlNormalizeEnabled = isEnabled; | |
2759 | ||
2760 | #if !defined(GL_ES_VERSION_2_0) | |
39070532 | 2761 | if (core11 != NULL) |
7d9e854b | 2762 | { |
39070532 | 2763 | if (isEnabled) |
2764 | { | |
2765 | ::glEnable (GL_NORMALIZE); | |
2766 | } | |
2767 | else | |
2768 | { | |
2769 | ::glDisable (GL_NORMALIZE); | |
2770 | } | |
7d9e854b | 2771 | } |
2772 | #endif | |
2773 | ||
2774 | return anOldGlNormalize; | |
2775 | } | |
c827ea3a | 2776 | |
2777 | // ======================================================================= | |
2778 | // function : ApplyModelWorldMatrix | |
2779 | // purpose : | |
2780 | // ======================================================================= | |
2781 | void OpenGl_Context::ApplyModelWorldMatrix() | |
2782 | { | |
2783 | #if !defined(GL_ES_VERSION_2_0) | |
2784 | if (core11 != NULL) | |
2785 | { | |
2786 | core11->glMatrixMode (GL_MODELVIEW); | |
2787 | core11->glLoadMatrixf (ModelWorldState.Current()); | |
2788 | } | |
2789 | #endif | |
2790 | ||
2791 | if (!myShaderManager->IsEmpty()) | |
2792 | { | |
2793 | myShaderManager->UpdateModelWorldStateTo (ModelWorldState.Current()); | |
2794 | } | |
2795 | } | |
2796 | ||
2797 | // ======================================================================= | |
2798 | // function : ApplyWorldViewMatrix | |
2799 | // purpose : | |
2800 | // ======================================================================= | |
2801 | void OpenGl_Context::ApplyWorldViewMatrix() | |
2802 | { | |
2803 | #if !defined(GL_ES_VERSION_2_0) | |
2804 | if (core11 != NULL) | |
2805 | { | |
2806 | core11->glMatrixMode (GL_MODELVIEW); | |
2807 | core11->glLoadMatrixf (WorldViewState.Current()); | |
2808 | } | |
2809 | #endif | |
2810 | ||
2811 | if (!myShaderManager->IsEmpty()) | |
2812 | { | |
2813 | myShaderManager->UpdateWorldViewStateTo (WorldViewState.Current()); | |
2814 | } | |
2815 | } | |
2816 | ||
2817 | // ======================================================================= | |
2818 | // function : ApplyModelViewMatrix | |
2819 | // purpose : | |
2820 | // ======================================================================= | |
2821 | void OpenGl_Context::ApplyModelViewMatrix() | |
2822 | { | |
2823 | #if !defined(GL_ES_VERSION_2_0) | |
2824 | if (core11 != NULL) | |
2825 | { | |
2826 | OpenGl_Mat4 aModelView = WorldViewState.Current() * ModelWorldState.Current(); | |
2827 | core11->glMatrixMode (GL_MODELVIEW); | |
2828 | core11->glLoadMatrixf (aModelView.GetData()); | |
2829 | } | |
2830 | #endif | |
2831 | ||
2832 | if (!myShaderManager->IsEmpty()) | |
2833 | { | |
2834 | myShaderManager->UpdateModelWorldStateTo (ModelWorldState.Current()); | |
2835 | myShaderManager->UpdateWorldViewStateTo (WorldViewState.Current()); | |
2836 | } | |
2837 | } | |
2838 | ||
2839 | // ======================================================================= | |
2840 | // function : ApplyProjectionMatrix | |
2841 | // purpose : | |
2842 | // ======================================================================= | |
2843 | void OpenGl_Context::ApplyProjectionMatrix() | |
2844 | { | |
2845 | #if !defined(GL_ES_VERSION_2_0) | |
2846 | if (core11 != NULL) | |
2847 | { | |
2848 | core11->glMatrixMode (GL_PROJECTION); | |
2849 | core11->glLoadMatrixf (ProjectionState.Current().GetData()); | |
2850 | } | |
2851 | #endif | |
2852 | ||
2853 | if (!myShaderManager->IsEmpty()) | |
2854 | { | |
2855 | myShaderManager->UpdateProjectionStateTo (ProjectionState.Current()); | |
2856 | } | |
2857 | } | |
c357e426 | 2858 | |
2859 | ||
2860 | // ======================================================================= | |
2861 | // function : EnableFeatures | |
2862 | // purpose : | |
2863 | // ======================================================================= | |
2864 | void OpenGl_Context::EnableFeatures() const | |
2865 | { | |
2866 | // | |
2867 | } | |
2868 | ||
2869 | // ======================================================================= | |
2870 | // function : DisableFeatures | |
2871 | // purpose : | |
2872 | // ======================================================================= | |
2873 | void OpenGl_Context::DisableFeatures() const | |
2874 | { | |
2875 | #if !defined(GL_ES_VERSION_2_0) | |
2876 | glPixelTransferi (GL_MAP_COLOR, GL_FALSE); | |
2877 | #endif | |
2878 | ||
2879 | /* | |
2880 | * Disable stuff that's likely to slow down glDrawPixels. | |
2881 | * (Omit as much of this as possible, when you know in advance | |
2882 | * that the OpenGL state will already be set correctly.) | |
2883 | */ | |
2884 | glDisable(GL_DITHER); | |
2885 | glDisable(GL_BLEND); | |
2886 | glDisable(GL_DEPTH_TEST); | |
2887 | glDisable(GL_TEXTURE_2D); | |
2888 | glDisable(GL_STENCIL_TEST); | |
2889 | ||
2890 | #if !defined(GL_ES_VERSION_2_0) | |
2891 | glDisable(GL_LIGHTING); | |
2892 | glDisable(GL_ALPHA_TEST); | |
2893 | glDisable(GL_FOG); | |
2894 | glDisable(GL_LOGIC_OP); | |
2895 | glDisable(GL_TEXTURE_1D); | |
2896 | ||
2897 | glPixelTransferi(GL_MAP_COLOR, GL_FALSE); | |
2898 | glPixelTransferi(GL_RED_SCALE, 1); | |
2899 | glPixelTransferi(GL_RED_BIAS, 0); | |
2900 | glPixelTransferi(GL_GREEN_SCALE, 1); | |
2901 | glPixelTransferi(GL_GREEN_BIAS, 0); | |
2902 | glPixelTransferi(GL_BLUE_SCALE, 1); | |
2903 | glPixelTransferi(GL_BLUE_BIAS, 0); | |
2904 | glPixelTransferi(GL_ALPHA_SCALE, 1); | |
2905 | glPixelTransferi(GL_ALPHA_BIAS, 0); | |
2906 | ||
2907 | /* | |
2908 | * Disable extensions that could slow down glDrawPixels. | |
2909 | * (Actually, you should check for the presence of the proper | |
2910 | * extension before making these calls. I've omitted that | |
2911 | * code for simplicity.) | |
2912 | */ | |
2913 | ||
2914 | if ((myGlVerMajor >= 1) && (myGlVerMinor >= 2)) | |
2915 | { | |
2916 | #ifdef GL_EXT_convolution | |
2917 | if (CheckExtension ("GL_CONVOLUTION_1D_EXT")) | |
2918 | glDisable(GL_CONVOLUTION_1D_EXT); | |
2919 | ||
2920 | if (CheckExtension ("GL_CONVOLUTION_2D_EXT")) | |
2921 | glDisable(GL_CONVOLUTION_2D_EXT); | |
2922 | ||
2923 | if (CheckExtension ("GL_SEPARABLE_2D_EXT")) | |
2924 | glDisable(GL_SEPARABLE_2D_EXT); | |
2925 | #endif | |
2926 | ||
2927 | #ifdef GL_EXT_histogram | |
2928 | if (CheckExtension ("GL_SEPARABLE_2D_EXT")) | |
2929 | glDisable(GL_HISTOGRAM_EXT); | |
2930 | ||
2931 | if (CheckExtension ("GL_MINMAX_EXT")) | |
2932 | glDisable(GL_MINMAX_EXT); | |
2933 | #endif | |
2934 | ||
2935 | #ifdef GL_EXT_texture3D | |
2936 | if (CheckExtension ("GL_TEXTURE_3D_EXT")) | |
2937 | glDisable(GL_TEXTURE_3D_EXT); | |
2938 | #endif | |
2939 | } | |
2940 | #endif | |
2941 | } |