| 1 | // Created on: 2011-09-20 |
| 2 | // Created by: Sergey ZERCHANINOV |
| 3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
| 4 | // |
| 5 | // This file is part of Open CASCADE Technology software library. |
| 6 | // |
| 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 |
| 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. |
| 12 | // |
| 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 14 | // commercial license or contractual agreement. |
| 15 | |
| 16 | #include <OpenGl_GlCore15.hxx> |
| 17 | #include <OpenGl_ArbFBO.hxx> |
| 18 | |
| 19 | #include <InterfaceGraphic.hxx> |
| 20 | |
| 21 | #include <OpenGl_AspectLine.hxx> |
| 22 | #include <OpenGl_AspectFace.hxx> |
| 23 | #include <OpenGl_AspectMarker.hxx> |
| 24 | #include <OpenGl_AspectText.hxx> |
| 25 | #include <OpenGl_Context.hxx> |
| 26 | #include <OpenGl_Element.hxx> |
| 27 | #include <OpenGl_FrameBuffer.hxx> |
| 28 | #include <OpenGl_Structure.hxx> |
| 29 | #include <OpenGl_Sampler.hxx> |
| 30 | #include <OpenGl_ShaderManager.hxx> |
| 31 | #include <OpenGl_Texture.hxx> |
| 32 | #include <OpenGl_Utils.hxx> |
| 33 | #include <OpenGl_View.hxx> |
| 34 | #include <OpenGl_Workspace.hxx> |
| 35 | |
| 36 | #include <Graphic3d_TextureParams.hxx> |
| 37 | |
| 38 | #if defined(_WIN32) && defined(HAVE_VIDEOCAPTURE) |
| 39 | #include <OpenGl_AVIWriter.hxx> |
| 40 | #endif |
| 41 | |
| 42 | IMPLEMENT_STANDARD_HANDLE(OpenGl_Workspace,OpenGl_Window) |
| 43 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Workspace,OpenGl_Window) |
| 44 | |
| 45 | namespace |
| 46 | { |
| 47 | static const TEL_COLOUR THE_WHITE_COLOR = { { 1.0f, 1.0f, 1.0f, 1.0f } }; |
| 48 | static const OpenGl_Vec4 THE_BLACK_COLOR (0.0f, 0.0f, 0.0f, 1.0f); |
| 49 | |
| 50 | static const OpenGl_AspectLine myDefaultAspectLine; |
| 51 | static const OpenGl_AspectFace myDefaultAspectFace; |
| 52 | static const OpenGl_AspectMarker myDefaultAspectMarker; |
| 53 | static const OpenGl_AspectText myDefaultAspectText; |
| 54 | |
| 55 | static const OpenGl_TextParam myDefaultTextParam = |
| 56 | { |
| 57 | 16, Graphic3d_HTA_LEFT, Graphic3d_VTA_BOTTOM |
| 58 | }; |
| 59 | |
| 60 | static const OpenGl_Matrix myDefaultMatrix = |
| 61 | { |
| 62 | {{ 1.0F, 0.0F, 0.0F, 0.0F }, |
| 63 | { 0.0F, 1.0F, 0.0F, 0.0F }, |
| 64 | { 0.0F, 0.0F, 1.0F, 0.0F }, |
| 65 | { 0.0F, 0.0F, 0.0F, 1.0F }} |
| 66 | }; |
| 67 | |
| 68 | }; |
| 69 | |
| 70 | // ======================================================================= |
| 71 | // function : Init |
| 72 | // purpose : |
| 73 | // ======================================================================= |
| 74 | void OpenGl_Material::Init (const OPENGL_SURF_PROP& theProp) |
| 75 | { |
| 76 | // ambient component |
| 77 | if (theProp.color_mask & OPENGL_AMBIENT_MASK) |
| 78 | { |
| 79 | const float* aSrcAmb = theProp.isphysic ? theProp.ambcol.rgb : theProp.matcol.rgb; |
| 80 | Ambient = OpenGl_Vec4 (aSrcAmb[0] * theProp.amb, |
| 81 | aSrcAmb[1] * theProp.amb, |
| 82 | aSrcAmb[2] * theProp.amb, |
| 83 | 1.0f); |
| 84 | } |
| 85 | else |
| 86 | { |
| 87 | Ambient = THE_BLACK_COLOR; |
| 88 | } |
| 89 | |
| 90 | // diffusion component |
| 91 | if (theProp.color_mask & OPENGL_DIFFUSE_MASK) |
| 92 | { |
| 93 | const float* aSrcDif = theProp.isphysic ? theProp.difcol.rgb : theProp.matcol.rgb; |
| 94 | Diffuse = OpenGl_Vec4 (aSrcDif[0] * theProp.diff, |
| 95 | aSrcDif[1] * theProp.diff, |
| 96 | aSrcDif[2] * theProp.diff, |
| 97 | 1.0f); |
| 98 | } |
| 99 | else |
| 100 | { |
| 101 | Diffuse = THE_BLACK_COLOR; |
| 102 | } |
| 103 | |
| 104 | // specular component |
| 105 | if (theProp.color_mask & OPENGL_SPECULAR_MASK) |
| 106 | { |
| 107 | const float* aSrcSpe = theProp.isphysic ? theProp.speccol.rgb : THE_WHITE_COLOR.rgb; |
| 108 | Specular = OpenGl_Vec4 (aSrcSpe[0] * theProp.spec, |
| 109 | aSrcSpe[1] * theProp.spec, |
| 110 | aSrcSpe[2] * theProp.spec, |
| 111 | 1.0f); |
| 112 | } |
| 113 | else |
| 114 | { |
| 115 | Specular = THE_BLACK_COLOR; |
| 116 | } |
| 117 | |
| 118 | // emission component |
| 119 | if (theProp.color_mask & OPENGL_EMISSIVE_MASK) |
| 120 | { |
| 121 | const float* aSrcEms = theProp.isphysic ? theProp.emscol.rgb : theProp.matcol.rgb; |
| 122 | Emission = OpenGl_Vec4 (aSrcEms[0] * theProp.emsv, |
| 123 | aSrcEms[1] * theProp.emsv, |
| 124 | aSrcEms[2] * theProp.emsv, |
| 125 | 1.0f); |
| 126 | } |
| 127 | else |
| 128 | { |
| 129 | Emission = THE_BLACK_COLOR; |
| 130 | } |
| 131 | |
| 132 | ChangeShine() = theProp.shine; |
| 133 | ChangeTransparency() = theProp.trans; |
| 134 | } |
| 135 | |
| 136 | // ======================================================================= |
| 137 | // function : OpenGl_Workspace |
| 138 | // purpose : |
| 139 | // ======================================================================= |
| 140 | OpenGl_Workspace::OpenGl_Workspace (const Handle(OpenGl_GraphicDriver)& theDriver, |
| 141 | const CALL_DEF_WINDOW& theCWindow, |
| 142 | Aspect_RenderingContext theGContext, |
| 143 | const Handle(OpenGl_Caps)& theCaps, |
| 144 | const Handle(OpenGl_Context)& theShareCtx) |
| 145 | : OpenGl_Window (theDriver, theCWindow, theGContext, theCaps, theShareCtx), |
| 146 | NamedStatus (0), |
| 147 | HighlightColor (&THE_WHITE_COLOR), |
| 148 | // |
| 149 | myHasFboBlit (Standard_True), |
| 150 | // |
| 151 | myViewId (-1), |
| 152 | myAntiAliasingMode (3), |
| 153 | myTransientDrawToFront (Standard_True), |
| 154 | myBackBufferRestored (Standard_False), |
| 155 | myIsImmediateDrawn (Standard_False), |
| 156 | myUseZBuffer (Standard_False), |
| 157 | myUseDepthTest (Standard_True), |
| 158 | myUseGLLight (Standard_True), |
| 159 | myIsCullingEnabled (Standard_False), |
| 160 | myFrameCounter (0), |
| 161 | // |
| 162 | AspectLine_set (&myDefaultAspectLine), |
| 163 | AspectLine_applied (NULL), |
| 164 | AspectFace_set (&myDefaultAspectFace), |
| 165 | AspectFace_applied (NULL), |
| 166 | AspectMarker_set (&myDefaultAspectMarker), |
| 167 | AspectMarker_applied (NULL), |
| 168 | AspectText_set (&myDefaultAspectText), |
| 169 | AspectText_applied (NULL), |
| 170 | TextParam_set (&myDefaultTextParam), |
| 171 | TextParam_applied (NULL), |
| 172 | ViewMatrix_applied (&myDefaultMatrix), |
| 173 | StructureMatrix_applied (&myDefaultMatrix), |
| 174 | myCullingMode (TelCullUndefined), |
| 175 | myModelViewMatrix (myDefaultMatrix), |
| 176 | PolygonOffset_applied (THE_DEFAULT_POFFSET) |
| 177 | { |
| 178 | myGlContext->core11fwd->glPixelStorei (GL_UNPACK_ALIGNMENT, 1); |
| 179 | myResultFBO = new OpenGl_FrameBuffer(); |
| 180 | |
| 181 | if (!myGlContext->GetResource ("OpenGl_LineAttributes", myLineAttribs)) |
| 182 | { |
| 183 | // share and register for release once the resource is no longer used |
| 184 | myLineAttribs = new OpenGl_LineAttributes(); |
| 185 | myGlContext->ShareResource ("OpenGl_LineAttributes", myLineAttribs); |
| 186 | myLineAttribs->Init (myGlContext); |
| 187 | } |
| 188 | |
| 189 | // General initialization of the context |
| 190 | |
| 191 | #if !defined(GL_ES_VERSION_2_0) |
| 192 | if (myGlContext->core11 != NULL) |
| 193 | { |
| 194 | // Eviter d'avoir les faces mal orientees en noir. |
| 195 | // Pourrait etre utiliser pour detecter les problemes d'orientation |
| 196 | glLightModeli ((GLenum )GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE); |
| 197 | |
| 198 | // Optimisation pour le Fog et l'antialiasing |
| 199 | glHint (GL_FOG_HINT, GL_FASTEST); |
| 200 | glHint (GL_POINT_SMOOTH_HINT, GL_FASTEST); |
| 201 | } |
| 202 | |
| 203 | glHint (GL_LINE_SMOOTH_HINT, GL_FASTEST); |
| 204 | glHint (GL_POLYGON_SMOOTH_HINT, GL_FASTEST); |
| 205 | #endif |
| 206 | |
| 207 | // AA mode |
| 208 | const char* anAaEnv = ::getenv ("CALL_OPENGL_ANTIALIASING_MODE"); |
| 209 | if (anAaEnv != NULL) |
| 210 | { |
| 211 | int v; |
| 212 | if (sscanf (anAaEnv, "%d", &v) > 0) myAntiAliasingMode = v; |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | // ======================================================================= |
| 217 | // function : SetImmediateModeDrawToFront |
| 218 | // purpose : |
| 219 | // ======================================================================= |
| 220 | Standard_Boolean OpenGl_Workspace::SetImmediateModeDrawToFront (const Standard_Boolean theDrawToFrontBuffer) |
| 221 | { |
| 222 | const Standard_Boolean aPrevMode = myTransientDrawToFront; |
| 223 | myTransientDrawToFront = theDrawToFrontBuffer; |
| 224 | return aPrevMode; |
| 225 | } |
| 226 | |
| 227 | // ======================================================================= |
| 228 | // function : ~OpenGl_Workspace |
| 229 | // purpose : |
| 230 | // ======================================================================= |
| 231 | OpenGl_Workspace::~OpenGl_Workspace() |
| 232 | { |
| 233 | if (!myLineAttribs.IsNull()) |
| 234 | { |
| 235 | myLineAttribs.Nullify(); |
| 236 | myGlContext->ReleaseResource ("OpenGl_LineAttributes", Standard_True); |
| 237 | } |
| 238 | |
| 239 | if (!myResultFBO.IsNull()) |
| 240 | { |
| 241 | myResultFBO->Release (myGlContext.operator->()); |
| 242 | myResultFBO.Nullify(); |
| 243 | } |
| 244 | if (myFullScreenQuad.IsValid()) |
| 245 | { |
| 246 | myFullScreenQuad.Release (myGlContext.operator->()); |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | // ======================================================================= |
| 251 | // function : Activate |
| 252 | // purpose : |
| 253 | // ======================================================================= |
| 254 | Standard_Boolean OpenGl_Workspace::Activate() |
| 255 | { |
| 256 | if (!OpenGl_Window::Activate()) |
| 257 | return Standard_False; |
| 258 | |
| 259 | ViewMatrix_applied = &myDefaultMatrix; |
| 260 | StructureMatrix_applied = &myDefaultMatrix; |
| 261 | |
| 262 | ResetAppliedAspect(); |
| 263 | |
| 264 | return Standard_True; |
| 265 | } |
| 266 | |
| 267 | //======================================================================= |
| 268 | //function : ResetAppliedAspect |
| 269 | //purpose : Sets default values of GL parameters in accordance with default aspects |
| 270 | //======================================================================= |
| 271 | void OpenGl_Workspace::ResetAppliedAspect() |
| 272 | { |
| 273 | myGlContext->BindDefaultVao(); |
| 274 | |
| 275 | NamedStatus = !myTextureBound.IsNull() ? OPENGL_NS_TEXTURE : 0; |
| 276 | HighlightColor = &THE_WHITE_COLOR; |
| 277 | AspectLine_set = &myDefaultAspectLine; |
| 278 | AspectLine_applied = NULL; |
| 279 | AspectFace_set = &myDefaultAspectFace; |
| 280 | AspectFace_applied = NULL; |
| 281 | AspectMarker_set = &myDefaultAspectMarker; |
| 282 | AspectMarker_applied = NULL; |
| 283 | AspectText_set = &myDefaultAspectText; |
| 284 | AspectText_applied = NULL; |
| 285 | TextParam_set = &myDefaultTextParam; |
| 286 | TextParam_applied = NULL; |
| 287 | PolygonOffset_applied = THE_DEFAULT_POFFSET; |
| 288 | myCullingMode = TelCullUndefined; |
| 289 | |
| 290 | AspectLine(Standard_True); |
| 291 | AspectFace(Standard_True); |
| 292 | AspectMarker(Standard_True); |
| 293 | AspectText(Standard_True); |
| 294 | } |
| 295 | |
| 296 | // ======================================================================= |
| 297 | // function : DisableTexture |
| 298 | // purpose : |
| 299 | // ======================================================================= |
| 300 | Handle(OpenGl_Texture) OpenGl_Workspace::DisableTexture() |
| 301 | { |
| 302 | if (myTextureBound.IsNull()) |
| 303 | { |
| 304 | return myTextureBound; |
| 305 | } |
| 306 | |
| 307 | const Handle(OpenGl_Sampler)& aSampler = myGlContext->TextureSampler(); |
| 308 | if (!aSampler.IsNull()) |
| 309 | { |
| 310 | aSampler->Unbind (*myGlContext); |
| 311 | } |
| 312 | |
| 313 | #if !defined(GL_ES_VERSION_2_0) |
| 314 | // reset texture matrix because some code may expect it is identity |
| 315 | if (myGlContext->core11 != NULL) |
| 316 | { |
| 317 | GLint aMatrixMode = GL_TEXTURE; |
| 318 | glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode); |
| 319 | glMatrixMode (GL_TEXTURE); |
| 320 | glLoadIdentity(); |
| 321 | glMatrixMode (aMatrixMode); |
| 322 | } |
| 323 | #endif |
| 324 | |
| 325 | myTextureBound->Unbind (myGlContext); |
| 326 | switch (myTextureBound->GetTarget()) |
| 327 | { |
| 328 | #if !defined(GL_ES_VERSION_2_0) |
| 329 | case GL_TEXTURE_1D: |
| 330 | { |
| 331 | if (myGlContext->core11 != NULL) |
| 332 | { |
| 333 | if (myTextureBound->GetParams()->GenMode() != GL_NONE) |
| 334 | { |
| 335 | glDisable (GL_TEXTURE_GEN_S); |
| 336 | } |
| 337 | glDisable (GL_TEXTURE_1D); |
| 338 | } |
| 339 | break; |
| 340 | } |
| 341 | #endif |
| 342 | case GL_TEXTURE_2D: |
| 343 | { |
| 344 | #if !defined(GL_ES_VERSION_2_0) |
| 345 | if (myGlContext->core11 != NULL) |
| 346 | { |
| 347 | if (myTextureBound->GetParams()->GenMode() != GL_NONE) |
| 348 | { |
| 349 | glDisable (GL_TEXTURE_GEN_S); |
| 350 | glDisable (GL_TEXTURE_GEN_T); |
| 351 | if (myTextureBound->GetParams()->GenMode() == Graphic3d_TOTM_SPRITE) |
| 352 | { |
| 353 | glDisable (GL_POINT_SPRITE); |
| 354 | } |
| 355 | } |
| 356 | glDisable (GL_TEXTURE_2D); |
| 357 | } |
| 358 | #endif |
| 359 | break; |
| 360 | } |
| 361 | default: break; |
| 362 | } |
| 363 | |
| 364 | Handle(OpenGl_Texture) aPrevTexture = myTextureBound; |
| 365 | myTextureBound.Nullify(); |
| 366 | return aPrevTexture; |
| 367 | } |
| 368 | |
| 369 | // ======================================================================= |
| 370 | // function : setTextureParams |
| 371 | // purpose : |
| 372 | // ======================================================================= |
| 373 | void OpenGl_Workspace::setTextureParams (Handle(OpenGl_Texture)& theTexture, |
| 374 | const Handle(Graphic3d_TextureParams)& theParams) |
| 375 | { |
| 376 | const Handle(Graphic3d_TextureParams)& aParams = theParams.IsNull() ? theTexture->GetParams() : theParams; |
| 377 | if (aParams.IsNull()) |
| 378 | { |
| 379 | return; |
| 380 | } |
| 381 | |
| 382 | #if !defined(GL_ES_VERSION_2_0) |
| 383 | GLint aMatrixMode = GL_TEXTURE; |
| 384 | if (myGlContext->core11 != NULL) |
| 385 | { |
| 386 | glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode); |
| 387 | |
| 388 | // setup texture matrix |
| 389 | glMatrixMode (GL_TEXTURE); |
| 390 | OpenGl_Mat4 aTextureMat; |
| 391 | const Graphic3d_Vec2& aScale = aParams->Scale(); |
| 392 | const Graphic3d_Vec2& aTrans = aParams->Translation(); |
| 393 | OpenGl_Utils::Scale (aTextureMat, aScale.x(), aScale.y(), 1.0f); |
| 394 | OpenGl_Utils::Translate (aTextureMat, -aTrans.x(), -aTrans.y(), 0.0f); |
| 395 | OpenGl_Utils::Rotate (aTextureMat, -aParams->Rotation(), 0.0f, 0.0f, 1.0f); |
| 396 | glLoadMatrixf (aTextureMat); |
| 397 | |
| 398 | GLint anEnvMode = GL_MODULATE; // lighting mode |
| 399 | if (!aParams->IsModulate()) |
| 400 | { |
| 401 | anEnvMode = GL_DECAL; |
| 402 | if (theTexture->GetFormat() == GL_ALPHA |
| 403 | || theTexture->GetFormat() == GL_LUMINANCE) |
| 404 | { |
| 405 | anEnvMode = GL_REPLACE; |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | // setup generation of texture coordinates |
| 410 | switch (aParams->GenMode()) |
| 411 | { |
| 412 | case Graphic3d_TOTM_OBJECT: |
| 413 | { |
| 414 | glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR); |
| 415 | glTexGenfv (GL_S, GL_OBJECT_PLANE, aParams->GenPlaneS().GetData()); |
| 416 | if (theTexture->GetTarget() != GL_TEXTURE_1D) |
| 417 | { |
| 418 | glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR); |
| 419 | glTexGenfv (GL_T, GL_OBJECT_PLANE, aParams->GenPlaneT().GetData()); |
| 420 | } |
| 421 | break; |
| 422 | } |
| 423 | case Graphic3d_TOTM_SPHERE: |
| 424 | { |
| 425 | glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP); |
| 426 | if (theTexture->GetTarget() != GL_TEXTURE_1D) |
| 427 | { |
| 428 | glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP); |
| 429 | } |
| 430 | break; |
| 431 | } |
| 432 | case Graphic3d_TOTM_EYE: |
| 433 | { |
| 434 | myGlContext->WorldViewState.Push(); |
| 435 | |
| 436 | myGlContext->WorldViewState.SetIdentity(); |
| 437 | myGlContext->ApplyWorldViewMatrix(); |
| 438 | |
| 439 | glTexGeni (GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR); |
| 440 | glTexGenfv (GL_S, GL_EYE_PLANE, aParams->GenPlaneS().GetData()); |
| 441 | |
| 442 | if (theTexture->GetTarget() != GL_TEXTURE_1D) |
| 443 | { |
| 444 | glTexGeni (GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR); |
| 445 | glTexGenfv (GL_T, GL_EYE_PLANE, aParams->GenPlaneT().GetData()); |
| 446 | } |
| 447 | |
| 448 | myGlContext->WorldViewState.Pop(); |
| 449 | |
| 450 | break; |
| 451 | } |
| 452 | case Graphic3d_TOTM_SPRITE: |
| 453 | { |
| 454 | if (GetGlContext()->core20fwd != NULL) |
| 455 | { |
| 456 | glEnable (GL_POINT_SPRITE); |
| 457 | glTexEnvi (GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE); |
| 458 | anEnvMode = GL_REPLACE; |
| 459 | GetGlContext()->core15->glPointParameteri (GL_POINT_SPRITE_COORD_ORIGIN, GL_LOWER_LEFT); |
| 460 | } |
| 461 | break; |
| 462 | } |
| 463 | case Graphic3d_TOTM_MANUAL: |
| 464 | default: break; |
| 465 | } |
| 466 | |
| 467 | // setup lighting |
| 468 | glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, anEnvMode); |
| 469 | } |
| 470 | #endif |
| 471 | |
| 472 | // get active sampler object to override default texture parameters |
| 473 | const Handle(OpenGl_Sampler)& aSampler = myGlContext->TextureSampler(); |
| 474 | |
| 475 | // setup texture filtering and wrapping |
| 476 | //if (theTexture->GetParams() != theParams) |
| 477 | const GLenum aFilter = (aParams->Filter() == Graphic3d_TOTF_NEAREST) ? GL_NEAREST : GL_LINEAR; |
| 478 | const GLenum aWrapMode = aParams->IsRepeat() ? GL_REPEAT : myGlContext->TextureWrapClamp(); |
| 479 | switch (theTexture->GetTarget()) |
| 480 | { |
| 481 | #if !defined(GL_ES_VERSION_2_0) |
| 482 | case GL_TEXTURE_1D: |
| 483 | { |
| 484 | if (aSampler.IsNull() || !aSampler->IsValid()) |
| 485 | { |
| 486 | glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, aFilter); |
| 487 | glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, aFilter); |
| 488 | glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, aWrapMode); |
| 489 | } |
| 490 | else |
| 491 | { |
| 492 | aSampler->SetParameter (*myGlContext, GL_TEXTURE_MAG_FILTER, aFilter); |
| 493 | aSampler->SetParameter (*myGlContext, GL_TEXTURE_MIN_FILTER, aFilter); |
| 494 | aSampler->SetParameter (*myGlContext, GL_TEXTURE_WRAP_S, aWrapMode); |
| 495 | } |
| 496 | |
| 497 | break; |
| 498 | } |
| 499 | #endif |
| 500 | case GL_TEXTURE_2D: |
| 501 | { |
| 502 | GLenum aFilterMin = aFilter; |
| 503 | if (theTexture->HasMipmaps()) |
| 504 | { |
| 505 | aFilterMin = GL_NEAREST_MIPMAP_NEAREST; |
| 506 | if (aParams->Filter() == Graphic3d_TOTF_BILINEAR) |
| 507 | { |
| 508 | aFilterMin = GL_LINEAR_MIPMAP_NEAREST; |
| 509 | } |
| 510 | else if (aParams->Filter() == Graphic3d_TOTF_TRILINEAR) |
| 511 | { |
| 512 | aFilterMin = GL_LINEAR_MIPMAP_LINEAR; |
| 513 | } |
| 514 | |
| 515 | if (myGlContext->extAnis) |
| 516 | { |
| 517 | // setup degree of anisotropy filter |
| 518 | const GLint aMaxDegree = myGlContext->MaxDegreeOfAnisotropy(); |
| 519 | GLint aDegree; |
| 520 | switch (aParams->AnisoFilter()) |
| 521 | { |
| 522 | case Graphic3d_LOTA_QUALITY: |
| 523 | { |
| 524 | aDegree = aMaxDegree; |
| 525 | break; |
| 526 | } |
| 527 | case Graphic3d_LOTA_MIDDLE: |
| 528 | { |
| 529 | aDegree = (aMaxDegree <= 4) ? 2 : (aMaxDegree / 2); |
| 530 | break; |
| 531 | } |
| 532 | case Graphic3d_LOTA_FAST: |
| 533 | { |
| 534 | aDegree = 2; |
| 535 | break; |
| 536 | } |
| 537 | case Graphic3d_LOTA_OFF: |
| 538 | default: |
| 539 | { |
| 540 | aDegree = 1; |
| 541 | break; |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | if (aSampler.IsNull() || !aSampler->IsValid()) |
| 546 | { |
| 547 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, aDegree); |
| 548 | } |
| 549 | else |
| 550 | { |
| 551 | aSampler->SetParameter (*myGlContext, GL_TEXTURE_MAX_ANISOTROPY_EXT, aDegree); |
| 552 | } |
| 553 | } |
| 554 | } |
| 555 | |
| 556 | if (aSampler.IsNull() || !aSampler->IsValid()) |
| 557 | { |
| 558 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, aFilterMin); |
| 559 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, aFilter); |
| 560 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, aWrapMode); |
| 561 | glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, aWrapMode); |
| 562 | } |
| 563 | else |
| 564 | { |
| 565 | aSampler->SetParameter (*myGlContext, GL_TEXTURE_MIN_FILTER, aFilterMin); |
| 566 | aSampler->SetParameter (*myGlContext, GL_TEXTURE_MAG_FILTER, aFilter); |
| 567 | aSampler->SetParameter (*myGlContext, GL_TEXTURE_WRAP_S, aWrapMode); |
| 568 | aSampler->SetParameter (*myGlContext, GL_TEXTURE_WRAP_T, aWrapMode); |
| 569 | } |
| 570 | |
| 571 | break; |
| 572 | } |
| 573 | default: break; |
| 574 | } |
| 575 | |
| 576 | switch (theTexture->GetTarget()) |
| 577 | { |
| 578 | #if !defined(GL_ES_VERSION_2_0) |
| 579 | case GL_TEXTURE_1D: |
| 580 | { |
| 581 | if (myGlContext->core11 != NULL) |
| 582 | { |
| 583 | if (aParams->GenMode() != Graphic3d_TOTM_MANUAL) |
| 584 | { |
| 585 | glEnable (GL_TEXTURE_GEN_S); |
| 586 | } |
| 587 | glEnable (GL_TEXTURE_1D); |
| 588 | } |
| 589 | break; |
| 590 | } |
| 591 | #endif |
| 592 | case GL_TEXTURE_2D: |
| 593 | { |
| 594 | #if !defined(GL_ES_VERSION_2_0) |
| 595 | if (myGlContext->core11 != NULL) |
| 596 | { |
| 597 | if (aParams->GenMode() != Graphic3d_TOTM_MANUAL) |
| 598 | { |
| 599 | glEnable (GL_TEXTURE_GEN_S); |
| 600 | glEnable (GL_TEXTURE_GEN_T); |
| 601 | } |
| 602 | glEnable (GL_TEXTURE_2D); |
| 603 | } |
| 604 | #endif |
| 605 | break; |
| 606 | } |
| 607 | default: break; |
| 608 | } |
| 609 | |
| 610 | #if !defined(GL_ES_VERSION_2_0) |
| 611 | if (myGlContext->core11 != NULL) |
| 612 | { |
| 613 | glMatrixMode (aMatrixMode); // turn back active matrix |
| 614 | } |
| 615 | #endif |
| 616 | theTexture->SetParams (aParams); |
| 617 | } |
| 618 | |
| 619 | // ======================================================================= |
| 620 | // function : EnableTexture |
| 621 | // purpose : |
| 622 | // ======================================================================= |
| 623 | Handle(OpenGl_Texture) OpenGl_Workspace::EnableTexture (const Handle(OpenGl_Texture)& theTexture, |
| 624 | const Handle(Graphic3d_TextureParams)& theParams) |
| 625 | { |
| 626 | if (theTexture.IsNull() || !theTexture->IsValid()) |
| 627 | { |
| 628 | return DisableTexture(); |
| 629 | } |
| 630 | |
| 631 | if (myTextureBound == theTexture |
| 632 | && (theParams.IsNull() || theParams == theTexture->GetParams())) |
| 633 | { |
| 634 | // already bound |
| 635 | return myTextureBound; |
| 636 | } |
| 637 | |
| 638 | Handle(OpenGl_Texture) aPrevTexture = DisableTexture(); |
| 639 | myTextureBound = theTexture; |
| 640 | myTextureBound->Bind (myGlContext); |
| 641 | setTextureParams (myTextureBound, theParams); |
| 642 | |
| 643 | // If custom sampler object is available it will be |
| 644 | // used for overriding default texture parameters |
| 645 | const Handle(OpenGl_Sampler)& aSampler = myGlContext->TextureSampler(); |
| 646 | |
| 647 | if (!aSampler.IsNull() && aSampler->IsValid()) |
| 648 | { |
| 649 | aSampler->Bind (*myGlContext); |
| 650 | } |
| 651 | |
| 652 | return aPrevTexture; |
| 653 | } |
| 654 | |
| 655 | // ======================================================================= |
| 656 | // function : Redraw |
| 657 | // purpose : |
| 658 | // ======================================================================= |
| 659 | void OpenGl_Workspace::Redraw (const Graphic3d_CView& theCView, |
| 660 | const Aspect_CLayer2d& theCUnderLayer, |
| 661 | const Aspect_CLayer2d& theCOverLayer) |
| 662 | { |
| 663 | if (!Activate()) |
| 664 | { |
| 665 | return; |
| 666 | } |
| 667 | |
| 668 | ++myFrameCounter; |
| 669 | myIsCullingEnabled = theCView.IsCullingEnabled; |
| 670 | |
| 671 | // release pending GL resources |
| 672 | myGlContext->ReleaseDelayed(); |
| 673 | |
| 674 | // fetch OpenGl context state |
| 675 | myGlContext->FetchState(); |
| 676 | |
| 677 | OpenGl_FrameBuffer* aFrameBuffer = (OpenGl_FrameBuffer* )theCView.ptrFBO; |
| 678 | if (aFrameBuffer != NULL) |
| 679 | { |
| 680 | aFrameBuffer->SetupViewport (myGlContext); |
| 681 | } |
| 682 | else |
| 683 | { |
| 684 | myGlContext->core11fwd->glViewport (0, 0, myWidth, myHeight); |
| 685 | } |
| 686 | bool toSwap = myGlContext->IsRender() |
| 687 | && !myGlContext->caps->buffersNoSwap |
| 688 | && aFrameBuffer == NULL; |
| 689 | |
| 690 | Standard_Integer aSizeX = aFrameBuffer != NULL ? aFrameBuffer->GetVPSizeX() : myWidth; |
| 691 | Standard_Integer aSizeY = aFrameBuffer != NULL ? aFrameBuffer->GetVPSizeY() : myHeight; |
| 692 | |
| 693 | if (!myGlContext->DefaultFrameBuffer().IsNull() |
| 694 | && myGlContext->DefaultFrameBuffer()->IsValid()) |
| 695 | { |
| 696 | myGlContext->DefaultFrameBuffer()->BindBuffer (myGlContext); |
| 697 | } |
| 698 | |
| 699 | if (myHasFboBlit |
| 700 | && myTransientDrawToFront) |
| 701 | { |
| 702 | if (myResultFBO->GetVPSizeX() != aSizeX |
| 703 | || myResultFBO->GetVPSizeY() != aSizeY) |
| 704 | { |
| 705 | // prepare FBOs containing main scene |
| 706 | // for further blitting and rendering immediate presentations on top |
| 707 | if (myGlContext->core20fwd != NULL) |
| 708 | { |
| 709 | myResultFBO->Init (myGlContext, aSizeX, aSizeY); |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | if (myResultFBO->IsValid()) |
| 714 | { |
| 715 | myResultFBO->SetupViewport (myGlContext); |
| 716 | } |
| 717 | } |
| 718 | else |
| 719 | { |
| 720 | myResultFBO->Release (myGlContext.operator->()); |
| 721 | myResultFBO->ChangeViewport (0, 0); |
| 722 | } |
| 723 | |
| 724 | // draw entire frame using normal OpenGL pipeline |
| 725 | if (myResultFBO->IsValid()) |
| 726 | { |
| 727 | myResultFBO->BindBuffer (myGlContext); |
| 728 | } |
| 729 | else if (aFrameBuffer != NULL) |
| 730 | { |
| 731 | aFrameBuffer->BindBuffer (myGlContext); |
| 732 | } |
| 733 | |
| 734 | redraw1 (theCView, theCUnderLayer, theCOverLayer); |
| 735 | myBackBufferRestored = Standard_True; |
| 736 | myIsImmediateDrawn = Standard_False; |
| 737 | if (!redrawImmediate (theCView, theCOverLayer, theCUnderLayer, aFrameBuffer)) |
| 738 | { |
| 739 | toSwap = false; |
| 740 | } |
| 741 | |
| 742 | if (aFrameBuffer != NULL) |
| 743 | { |
| 744 | aFrameBuffer->UnbindBuffer (myGlContext); |
| 745 | // move back original viewport |
| 746 | myGlContext->core11fwd->glViewport (0, 0, myWidth, myHeight); |
| 747 | } |
| 748 | |
| 749 | #if defined(_WIN32) && defined(HAVE_VIDEOCAPTURE) |
| 750 | if (OpenGl_AVIWriter_AllowWriting (theCView.DefWindow.XWindow)) |
| 751 | { |
| 752 | GLint params[4]; |
| 753 | glGetIntegerv (GL_VIEWPORT, params); |
| 754 | int nWidth = params[2] & ~0x7; |
| 755 | int nHeight = params[3] & ~0x7; |
| 756 | |
| 757 | const int nBitsPerPixel = 24; |
| 758 | GLubyte* aDumpData = new GLubyte[nWidth * nHeight * nBitsPerPixel / 8]; |
| 759 | |
| 760 | glPixelStorei (GL_PACK_ALIGNMENT, 1); |
| 761 | glReadPixels (0, 0, nWidth, nHeight, GL_BGR_EXT, GL_UNSIGNED_BYTE, aDumpData); |
| 762 | OpenGl_AVIWriter_AVIWriter (aDumpData, nWidth, nHeight, nBitsPerPixel); |
| 763 | delete[] aDumpData; |
| 764 | } |
| 765 | #endif |
| 766 | |
| 767 | // Swap the buffers |
| 768 | if (toSwap) |
| 769 | { |
| 770 | GetGlContext()->SwapBuffers(); |
| 771 | if (!myResultFBO->IsValid()) |
| 772 | { |
| 773 | myBackBufferRestored = Standard_False; |
| 774 | } |
| 775 | } |
| 776 | else |
| 777 | { |
| 778 | myGlContext->core11fwd->glFlush(); |
| 779 | } |
| 780 | |
| 781 | // reset render mode state |
| 782 | myGlContext->FetchState(); |
| 783 | } |
| 784 | |
| 785 | // ======================================================================= |
| 786 | // function : redraw1 |
| 787 | // purpose : |
| 788 | // ======================================================================= |
| 789 | void OpenGl_Workspace::redraw1 (const Graphic3d_CView& theCView, |
| 790 | const Aspect_CLayer2d& theCUnderLayer, |
| 791 | const Aspect_CLayer2d& theCOverLayer) |
| 792 | { |
| 793 | if (myView.IsNull()) |
| 794 | { |
| 795 | return; |
| 796 | } |
| 797 | |
| 798 | // request reset of material |
| 799 | NamedStatus |= OPENGL_NS_RESMAT; |
| 800 | |
| 801 | GLbitfield toClear = GL_COLOR_BUFFER_BIT; |
| 802 | if (myUseZBuffer) |
| 803 | { |
| 804 | glDepthFunc (GL_LEQUAL); |
| 805 | glDepthMask (GL_TRUE); |
| 806 | if (myUseDepthTest) |
| 807 | { |
| 808 | glEnable (GL_DEPTH_TEST); |
| 809 | } |
| 810 | else |
| 811 | { |
| 812 | glDisable (GL_DEPTH_TEST); |
| 813 | } |
| 814 | |
| 815 | #if !defined(GL_ES_VERSION_2_0) |
| 816 | glClearDepth (1.0); |
| 817 | #else |
| 818 | glClearDepthf (1.0f); |
| 819 | #endif |
| 820 | toClear |= GL_DEPTH_BUFFER_BIT; |
| 821 | } |
| 822 | else |
| 823 | { |
| 824 | glDisable (GL_DEPTH_TEST); |
| 825 | } |
| 826 | |
| 827 | if (NamedStatus & OPENGL_NS_WHITEBACK) |
| 828 | { |
| 829 | // set background to white |
| 830 | glClearColor (1.0f, 1.0f, 1.0f, 1.0f); |
| 831 | toClear |= GL_DEPTH_BUFFER_BIT; |
| 832 | } |
| 833 | else |
| 834 | { |
| 835 | glClearColor (myBgColor.rgb[0], myBgColor.rgb[1], myBgColor.rgb[2], 0.0f); |
| 836 | } |
| 837 | |
| 838 | glClear (toClear); |
| 839 | |
| 840 | Handle(OpenGl_Workspace) aWS (this); |
| 841 | myView->Render (myPrintContext, aWS, theCView, theCUnderLayer, theCOverLayer, Standard_False); |
| 842 | } |
| 843 | |
| 844 | // ======================================================================= |
| 845 | // function : copyBackToFront |
| 846 | // purpose : |
| 847 | // ======================================================================= |
| 848 | void OpenGl_Workspace::copyBackToFront() |
| 849 | { |
| 850 | #if !defined(GL_ES_VERSION_2_0) |
| 851 | |
| 852 | OpenGl_Mat4 aProjectMat; |
| 853 | OpenGl_Utils::Ortho2D<Standard_ShortReal> (aProjectMat, |
| 854 | 0.f, static_cast<GLfloat> (myWidth), 0.f, static_cast<GLfloat> (myHeight)); |
| 855 | |
| 856 | myGlContext->WorldViewState.Push(); |
| 857 | myGlContext->ProjectionState.Push(); |
| 858 | |
| 859 | myGlContext->WorldViewState.SetIdentity(); |
| 860 | myGlContext->ProjectionState.SetCurrent (aProjectMat); |
| 861 | |
| 862 | myGlContext->ApplyProjectionMatrix(); |
| 863 | myGlContext->ApplyWorldViewMatrix(); |
| 864 | |
| 865 | DisableFeatures(); |
| 866 | |
| 867 | glDrawBuffer (GL_FRONT); |
| 868 | glReadBuffer (GL_BACK); |
| 869 | |
| 870 | glRasterPos2i (0, 0); |
| 871 | glCopyPixels (0, 0, myWidth + 1, myHeight + 1, GL_COLOR); |
| 872 | //glCopyPixels (0, 0, myWidth + 1, myHeight + 1, GL_DEPTH); |
| 873 | |
| 874 | EnableFeatures(); |
| 875 | |
| 876 | myGlContext->WorldViewState.Pop(); |
| 877 | myGlContext->ProjectionState.Pop(); |
| 878 | myGlContext->ApplyProjectionMatrix(); |
| 879 | glDrawBuffer (GL_BACK); |
| 880 | |
| 881 | #endif |
| 882 | myIsImmediateDrawn = Standard_False; |
| 883 | } |
| 884 | |
| 885 | // ======================================================================= |
| 886 | // function : DisplayCallback |
| 887 | // purpose : |
| 888 | // ======================================================================= |
| 889 | void OpenGl_Workspace::DisplayCallback (const Graphic3d_CView& theCView, |
| 890 | Standard_Integer theReason) |
| 891 | { |
| 892 | if (theCView.GDisplayCB == NULL) |
| 893 | { |
| 894 | return; |
| 895 | } |
| 896 | |
| 897 | Aspect_GraphicCallbackStruct aCallData; |
| 898 | aCallData.reason = theReason; |
| 899 | aCallData.glContext = myGlContext; |
| 900 | aCallData.wsID = theCView.WsId; |
| 901 | aCallData.viewID = theCView.ViewId; |
| 902 | aCallData.IsCoreProfile = (myGlContext->core11 == NULL); |
| 903 | theCView.GDisplayCB (theCView.DefWindow.XWindow, theCView.GClientData, &aCallData); |
| 904 | } |
| 905 | |
| 906 | // ======================================================================= |
| 907 | // function : RedrawImmediate |
| 908 | // purpose : |
| 909 | // ======================================================================= |
| 910 | void OpenGl_Workspace::RedrawImmediate (const Graphic3d_CView& theCView, |
| 911 | const Aspect_CLayer2d& theCUnderLayer, |
| 912 | const Aspect_CLayer2d& theCOverLayer) |
| 913 | { |
| 914 | if (!myTransientDrawToFront |
| 915 | || !myBackBufferRestored |
| 916 | || (myGlContext->caps->buffersNoSwap && !myResultFBO->IsValid())) |
| 917 | { |
| 918 | Redraw (theCView, theCUnderLayer, theCOverLayer); |
| 919 | return; |
| 920 | } |
| 921 | else if (!Activate()) |
| 922 | { |
| 923 | return; |
| 924 | } |
| 925 | |
| 926 | if (!myGlContext->DefaultFrameBuffer().IsNull() |
| 927 | && myGlContext->DefaultFrameBuffer()->IsValid()) |
| 928 | { |
| 929 | myGlContext->DefaultFrameBuffer()->BindBuffer (myGlContext); |
| 930 | } |
| 931 | |
| 932 | if (redrawImmediate (theCView, theCUnderLayer, theCOverLayer, NULL, Standard_True) |
| 933 | && !myGlContext->caps->buffersNoSwap) |
| 934 | { |
| 935 | myGlContext->SwapBuffers(); |
| 936 | } |
| 937 | else |
| 938 | { |
| 939 | myGlContext->core11fwd->glFlush(); |
| 940 | MakeBackBufCurrent(); |
| 941 | } |
| 942 | } |
| 943 | |
| 944 | // ======================================================================= |
| 945 | // function : redrawImmediate |
| 946 | // purpose : |
| 947 | // ======================================================================= |
| 948 | bool OpenGl_Workspace::redrawImmediate (const Graphic3d_CView& theCView, |
| 949 | const Aspect_CLayer2d& theCUnderLayer, |
| 950 | const Aspect_CLayer2d& theCOverLayer, |
| 951 | OpenGl_FrameBuffer* theTargetFBO, |
| 952 | const Standard_Boolean theIsPartialUpdate) |
| 953 | { |
| 954 | GLboolean toCopyBackToFront = GL_FALSE; |
| 955 | if (!myTransientDrawToFront) |
| 956 | { |
| 957 | myBackBufferRestored = Standard_False; |
| 958 | } |
| 959 | else if (myResultFBO->IsValid() |
| 960 | && myGlContext->IsRender()) |
| 961 | { |
| 962 | // clear destination before blitting |
| 963 | if (theTargetFBO != NULL) |
| 964 | { |
| 965 | theTargetFBO->BindBuffer (myGlContext); |
| 966 | } |
| 967 | else if (!myGlContext->DefaultFrameBuffer().IsNull() |
| 968 | && myGlContext->DefaultFrameBuffer()->IsValid()) |
| 969 | { |
| 970 | myGlContext->DefaultFrameBuffer()->BindBuffer (myGlContext); |
| 971 | } |
| 972 | else |
| 973 | { |
| 974 | myGlContext->arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
| 975 | } |
| 976 | #if !defined(GL_ES_VERSION_2_0) |
| 977 | myGlContext->core20fwd->glClearDepth (1.0); |
| 978 | #else |
| 979 | myGlContext->core20fwd->glClearDepthf (1.0f); |
| 980 | #endif |
| 981 | myGlContext->core20fwd->glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); |
| 982 | |
| 983 | /*#if !defined(GL_ES_VERSION_2_0) |
| 984 | if (myGlContext->arbFBOBlit != NULL) |
| 985 | { |
| 986 | myResultFBO->BindReadBuffer (myGlContext); |
| 987 | if (theTargetFBO != NULL) |
| 988 | { |
| 989 | theTargetFBO->BindDrawBuffer (myGlContext); |
| 990 | } |
| 991 | else if (!myGlContext->DefaultFrameBuffer().IsNull() |
| 992 | && myGlContext->DefaultFrameBuffer()->IsValid()) |
| 993 | { |
| 994 | myGlContext->DefaultFrameBuffer()->BindDrawBuffer (myGlContext); |
| 995 | } |
| 996 | else |
| 997 | { |
| 998 | myGlContext->arbFBO->glBindFramebuffer (GL_DRAW_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
| 999 | } |
| 1000 | // we don't copy stencil buffer here... does it matter for performance? |
| 1001 | myGlContext->arbFBOBlit->glBlitFramebuffer (0, 0, myResultFBO->GetVPSizeX(), myResultFBO->GetVPSizeY(), |
| 1002 | 0, 0, myResultFBO->GetVPSizeX(), myResultFBO->GetVPSizeY(), |
| 1003 | GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, GL_NEAREST); |
| 1004 | |
| 1005 | if (theTargetFBO != NULL) |
| 1006 | { |
| 1007 | theTargetFBO->BindBuffer (myGlContext); |
| 1008 | } |
| 1009 | else if (!myGlContext->DefaultFrameBuffer().IsNull() |
| 1010 | && myGlContext->DefaultFrameBuffer()->IsValid()) |
| 1011 | { |
| 1012 | myGlContext->DefaultFrameBuffer()->BindBuffer (myGlContext); |
| 1013 | } |
| 1014 | else |
| 1015 | { |
| 1016 | myGlContext->arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER); |
| 1017 | } |
| 1018 | } |
| 1019 | else |
| 1020 | #endif*/ |
| 1021 | { |
| 1022 | myGlContext->core20fwd->glDepthFunc (GL_ALWAYS); |
| 1023 | myGlContext->core20fwd->glDepthMask (GL_TRUE); |
| 1024 | myGlContext->core20fwd->glEnable (GL_DEPTH_TEST); |
| 1025 | |
| 1026 | DisableTexture(); |
| 1027 | if (!myFullScreenQuad.IsValid()) |
| 1028 | { |
| 1029 | OpenGl_Vec4 aQuad[4] = |
| 1030 | { |
| 1031 | OpenGl_Vec4( 1.0f, -1.0f, 1.0f, 0.0f), |
| 1032 | OpenGl_Vec4( 1.0f, 1.0f, 1.0f, 1.0f), |
| 1033 | OpenGl_Vec4(-1.0f, -1.0f, 0.0f, 0.0f), |
| 1034 | OpenGl_Vec4(-1.0f, 1.0f, 0.0f, 1.0f) |
| 1035 | }; |
| 1036 | myFullScreenQuad.Init (myGlContext, 4, 4, aQuad[0].GetData()); |
| 1037 | } |
| 1038 | |
| 1039 | const Handle(OpenGl_ShaderManager)& aManager = myGlContext->ShaderManager(); |
| 1040 | if (myFullScreenQuad.IsValid() |
| 1041 | && aManager->BindFboBlitProgram()) |
| 1042 | { |
| 1043 | myResultFBO->ColorTexture() ->Bind (myGlContext, GL_TEXTURE0 + 0); |
| 1044 | myResultFBO->DepthStencilTexture()->Bind (myGlContext, GL_TEXTURE0 + 1); |
| 1045 | myFullScreenQuad.BindVertexAttrib (myGlContext, 0); |
| 1046 | |
| 1047 | myGlContext->core20fwd->glDrawArrays (GL_TRIANGLE_STRIP, 0, 4); |
| 1048 | |
| 1049 | myFullScreenQuad.UnbindVertexAttrib (myGlContext, 0); |
| 1050 | myResultFBO->DepthStencilTexture()->Unbind (myGlContext, GL_TEXTURE0 + 1); |
| 1051 | myResultFBO->ColorTexture() ->Unbind (myGlContext, GL_TEXTURE0 + 0); |
| 1052 | } |
| 1053 | else |
| 1054 | { |
| 1055 | TCollection_ExtendedString aMsg = TCollection_ExtendedString() |
| 1056 | + "Error! FBO blitting has failed"; |
| 1057 | myGlContext->PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB, |
| 1058 | GL_DEBUG_TYPE_ERROR_ARB, |
| 1059 | 0, |
| 1060 | GL_DEBUG_SEVERITY_HIGH_ARB, |
| 1061 | aMsg); |
| 1062 | myHasFboBlit = Standard_False; |
| 1063 | myResultFBO->Release (myGlContext.operator->()); |
| 1064 | return true; |
| 1065 | } |
| 1066 | } |
| 1067 | } |
| 1068 | else if (theTargetFBO == NULL) |
| 1069 | { |
| 1070 | #if !defined(GL_ES_VERSION_2_0) |
| 1071 | myGlContext->core11fwd->glGetBooleanv (GL_DOUBLEBUFFER, &toCopyBackToFront); |
| 1072 | #endif |
| 1073 | if (toCopyBackToFront) |
| 1074 | { |
| 1075 | if (!myView->HasImmediateStructures() |
| 1076 | && !theIsPartialUpdate) |
| 1077 | { |
| 1078 | // prefer Swap Buffers within Redraw in compatibility mode (without FBO) |
| 1079 | return true; |
| 1080 | } |
| 1081 | copyBackToFront(); |
| 1082 | MakeFrontBufCurrent(); |
| 1083 | } |
| 1084 | else |
| 1085 | { |
| 1086 | myBackBufferRestored = Standard_False; |
| 1087 | } |
| 1088 | } |
| 1089 | else |
| 1090 | { |
| 1091 | myBackBufferRestored = Standard_False; |
| 1092 | } |
| 1093 | myIsImmediateDrawn = Standard_True; |
| 1094 | |
| 1095 | Handle(OpenGl_Workspace) aWS (this); |
| 1096 | |
| 1097 | if (myUseZBuffer) |
| 1098 | { |
| 1099 | glDepthFunc (GL_LEQUAL); |
| 1100 | glDepthMask (GL_TRUE); |
| 1101 | if (myUseDepthTest) |
| 1102 | { |
| 1103 | glEnable (GL_DEPTH_TEST); |
| 1104 | } |
| 1105 | else |
| 1106 | { |
| 1107 | glDisable (GL_DEPTH_TEST); |
| 1108 | } |
| 1109 | |
| 1110 | #if !defined(GL_ES_VERSION_2_0) |
| 1111 | glClearDepth (1.0); |
| 1112 | #else |
| 1113 | glClearDepthf (1.0f); |
| 1114 | #endif |
| 1115 | } |
| 1116 | else |
| 1117 | { |
| 1118 | glDisable (GL_DEPTH_TEST); |
| 1119 | } |
| 1120 | |
| 1121 | myView->Render (myPrintContext, aWS, theCView, theCUnderLayer, theCOverLayer, Standard_True); |
| 1122 | if (!myView->ImmediateStructures().IsEmpty()) |
| 1123 | { |
| 1124 | glDisable (GL_DEPTH_TEST); |
| 1125 | } |
| 1126 | for (OpenGl_SequenceOfStructure::Iterator anIter (myView->ImmediateStructures()); |
| 1127 | anIter.More(); anIter.Next()) |
| 1128 | { |
| 1129 | const OpenGl_Structure* aStructure = anIter.Value(); |
| 1130 | if (!aStructure->IsVisible()) |
| 1131 | { |
| 1132 | continue; |
| 1133 | } |
| 1134 | |
| 1135 | aStructure->Render (aWS); |
| 1136 | } |
| 1137 | |
| 1138 | if (toCopyBackToFront) |
| 1139 | { |
| 1140 | MakeBackBufCurrent(); |
| 1141 | return false; |
| 1142 | } |
| 1143 | return true; |
| 1144 | } |
| 1145 | |
| 1146 | IMPLEMENT_STANDARD_HANDLE (OpenGl_RaytraceFilter, OpenGl_RenderFilter) |
| 1147 | IMPLEMENT_STANDARD_RTTIEXT(OpenGl_RaytraceFilter, OpenGl_RenderFilter) |
| 1148 | |
| 1149 | // ======================================================================= |
| 1150 | // function : CanRender |
| 1151 | // purpose : |
| 1152 | // ======================================================================= |
| 1153 | Standard_Boolean OpenGl_RaytraceFilter::CanRender (const OpenGl_Element* theElement) |
| 1154 | { |
| 1155 | Standard_Boolean aPrevFilterResult = Standard_True; |
| 1156 | if (!myPrevRenderFilter.IsNull()) |
| 1157 | { |
| 1158 | aPrevFilterResult = myPrevRenderFilter->CanRender (theElement); |
| 1159 | } |
| 1160 | return aPrevFilterResult && |
| 1161 | !OpenGl_Raytrace::IsRaytracedElement (theElement); |
| 1162 | } |