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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 | 8 |
9 #include "GrGLGpu.h" | 9 #include "GrGLGpu.h" |
10 #include "GrGLStencilAttachment.h" | 10 #include "GrGLStencilAttachment.h" |
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366 // On some devices this may have a perf hit. Also multiple render t
argets are disabled | 366 // On some devices this may have a perf hit. Also multiple render t
argets are disabled |
367 GL_CALL(Enable(GR_GL_FETCH_PER_SAMPLE_ARM)); | 367 GL_CALL(Enable(GR_GL_FETCH_PER_SAMPLE_ARM)); |
368 } | 368 } |
369 fHWWriteToColor = kUnknown_TriState; | 369 fHWWriteToColor = kUnknown_TriState; |
370 // we only ever use lines in hairline mode | 370 // we only ever use lines in hairline mode |
371 GL_CALL(LineWidth(1)); | 371 GL_CALL(LineWidth(1)); |
372 } | 372 } |
373 | 373 |
374 if (resetBits & kMSAAEnable_GrGLBackendState) { | 374 if (resetBits & kMSAAEnable_GrGLBackendState) { |
375 fMSAAEnabled = kUnknown_TriState; | 375 fMSAAEnabled = kUnknown_TriState; |
| 376 |
| 377 // In mixed samples mode coverage modulation allows the coverage to be c
onverted to |
| 378 // "opacity", which can then be blended into the color buffer to accompl
ish antialiasing. |
| 379 // Enable coverage modulation suitable for premultiplied alpha colors. |
| 380 // This state has no effect when not rendering to a mixed sampled target
. |
| 381 if (this->glCaps().shaderCaps()->mixedSamplesSupport()) { |
| 382 GL_CALL(CoverageModulation(GR_GL_RGBA)); |
| 383 } |
376 } | 384 } |
377 | 385 |
378 fHWActiveTextureUnitIdx = -1; // invalid | 386 fHWActiveTextureUnitIdx = -1; // invalid |
379 | 387 |
380 if (resetBits & kTextureBinding_GrGLBackendState) { | 388 if (resetBits & kTextureBinding_GrGLBackendState) { |
381 for (int s = 0; s < fHWBoundTextureUniqueIDs.count(); ++s) { | 389 for (int s = 0; s < fHWBoundTextureUniqueIDs.count(); ++s) { |
382 fHWBoundTextureUniqueIDs[s] = SK_InvalidUniqueID; | 390 fHWBoundTextureUniqueIDs[s] = SK_InvalidUniqueID; |
383 } | 391 } |
384 } | 392 } |
385 | 393 |
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844 | 852 |
845 static bool renderbuffer_storage_msaa(const GrGLContext& ctx, | 853 static bool renderbuffer_storage_msaa(const GrGLContext& ctx, |
846 int sampleCount, | 854 int sampleCount, |
847 GrGLenum format, | 855 GrGLenum format, |
848 int width, int height) { | 856 int width, int height) { |
849 CLEAR_ERROR_BEFORE_ALLOC(ctx.interface()); | 857 CLEAR_ERROR_BEFORE_ALLOC(ctx.interface()); |
850 SkASSERT(GrGLCaps::kNone_MSFBOType != ctx.caps()->msFBOType()); | 858 SkASSERT(GrGLCaps::kNone_MSFBOType != ctx.caps()->msFBOType()); |
851 switch (ctx.caps()->msFBOType()) { | 859 switch (ctx.caps()->msFBOType()) { |
852 case GrGLCaps::kDesktop_ARB_MSFBOType: | 860 case GrGLCaps::kDesktop_ARB_MSFBOType: |
853 case GrGLCaps::kDesktop_EXT_MSFBOType: | 861 case GrGLCaps::kDesktop_EXT_MSFBOType: |
| 862 case GrGLCaps::kMixedSamples_MSFBOType: |
854 case GrGLCaps::kES_3_0_MSFBOType: | 863 case GrGLCaps::kES_3_0_MSFBOType: |
855 GL_ALLOC_CALL(ctx.interface(), | 864 GL_ALLOC_CALL(ctx.interface(), |
856 RenderbufferStorageMultisample(GR_GL_RENDERBUFFER, | 865 RenderbufferStorageMultisample(GR_GL_RENDERBUFFER, |
857 sampleCount, | 866 sampleCount, |
858 format, | 867 format, |
859 width, height)); | 868 width, height)); |
860 break; | 869 break; |
861 case GrGLCaps::kES_Apple_MSFBOType: | 870 case GrGLCaps::kES_Apple_MSFBOType: |
862 GL_ALLOC_CALL(ctx.interface(), | 871 GL_ALLOC_CALL(ctx.interface(), |
863 RenderbufferStorageMultisampleES2APPLE(GR_GL_RENDERB
UFFER, | 872 RenderbufferStorageMultisampleES2APPLE(GR_GL_RENDERB
UFFER, |
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881 } | 890 } |
882 | 891 |
883 bool GrGLGpu::createRenderTargetObjects(const GrSurfaceDesc& desc, | 892 bool GrGLGpu::createRenderTargetObjects(const GrSurfaceDesc& desc, |
884 GrGpuResource::LifeCycle lifeCycle, | 893 GrGpuResource::LifeCycle lifeCycle, |
885 GrGLuint texID, | 894 GrGLuint texID, |
886 GrGLRenderTarget::IDDesc* idDesc) { | 895 GrGLRenderTarget::IDDesc* idDesc) { |
887 idDesc->fMSColorRenderbufferID = 0; | 896 idDesc->fMSColorRenderbufferID = 0; |
888 idDesc->fRTFBOID = 0; | 897 idDesc->fRTFBOID = 0; |
889 idDesc->fTexFBOID = 0; | 898 idDesc->fTexFBOID = 0; |
890 idDesc->fLifeCycle = lifeCycle; | 899 idDesc->fLifeCycle = lifeCycle; |
| 900 idDesc->fSampleConfig = (GrGLCaps::kMixedSamples_MSFBOType == this->glCaps()
.msFBOType() && |
| 901 desc.fSampleCnt > 0) ? GrRenderTarget::kStencil_Samp
leConfig : |
| 902 GrRenderTarget::kUnified_Samp
leConfig; |
891 | 903 |
892 GrGLenum status; | 904 GrGLenum status; |
893 | 905 |
894 GrGLenum msColorFormat = 0; // suppress warning | 906 GrGLenum msColorFormat = 0; // suppress warning |
895 | 907 |
896 if (desc.fSampleCnt > 0 && GrGLCaps::kNone_MSFBOType == this->glCaps().msFBO
Type()) { | 908 if (desc.fSampleCnt > 0 && GrGLCaps::kNone_MSFBOType == this->glCaps().msFBO
Type()) { |
897 goto FAILED; | 909 goto FAILED; |
898 } | 910 } |
899 | 911 |
900 GL_CALL(GenFramebuffers(1, &idDesc->fTexFBOID)); | 912 GL_CALL(GenFramebuffers(1, &idDesc->fTexFBOID)); |
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1163 } | 1175 } |
1164 } | 1176 } |
1165 | 1177 |
1166 bool GrGLGpu::createStencilAttachmentForRenderTarget(GrRenderTarget* rt, int wid
th, int height) { | 1178 bool GrGLGpu::createStencilAttachmentForRenderTarget(GrRenderTarget* rt, int wid
th, int height) { |
1167 // All internally created RTs are also textures. We don't create | 1179 // All internally created RTs are also textures. We don't create |
1168 // SBs for a client's standalone RT (that is a RT that isn't also a texture)
. | 1180 // SBs for a client's standalone RT (that is a RT that isn't also a texture)
. |
1169 SkASSERT(rt->asTexture()); | 1181 SkASSERT(rt->asTexture()); |
1170 SkASSERT(width >= rt->width()); | 1182 SkASSERT(width >= rt->width()); |
1171 SkASSERT(height >= rt->height()); | 1183 SkASSERT(height >= rt->height()); |
1172 | 1184 |
1173 int samples = rt->numSamples(); | 1185 int samples = rt->numStencilSamples(); |
1174 GrGLStencilAttachment::IDDesc sbDesc; | 1186 GrGLStencilAttachment::IDDesc sbDesc; |
1175 | 1187 |
1176 int stencilFmtCnt = this->glCaps().stencilFormats().count(); | 1188 int stencilFmtCnt = this->glCaps().stencilFormats().count(); |
1177 for (int i = 0; i < stencilFmtCnt; ++i) { | 1189 for (int i = 0; i < stencilFmtCnt; ++i) { |
1178 if (!sbDesc.fRenderbufferID) { | 1190 if (!sbDesc.fRenderbufferID) { |
1179 GL_CALL(GenRenderbuffers(1, &sbDesc.fRenderbufferID)); | 1191 GL_CALL(GenRenderbuffers(1, &sbDesc.fRenderbufferID)); |
1180 } | 1192 } |
1181 if (!sbDesc.fRenderbufferID) { | 1193 if (!sbDesc.fRenderbufferID) { |
1182 return false; | 1194 return false; |
1183 } | 1195 } |
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2083 stencilSettings, | 2095 stencilSettings, |
2084 GR_GL_FRONT_AND_BACK, | 2096 GR_GL_FRONT_AND_BACK, |
2085 GrStencilSettings::kFront_Face); | 2097 GrStencilSettings::kFront_Face); |
2086 } | 2098 } |
2087 } | 2099 } |
2088 fHWStencilSettings = stencilSettings; | 2100 fHWStencilSettings = stencilSettings; |
2089 } | 2101 } |
2090 } | 2102 } |
2091 | 2103 |
2092 void GrGLGpu::flushHWAAState(GrRenderTarget* rt, bool useHWAA) { | 2104 void GrGLGpu::flushHWAAState(GrRenderTarget* rt, bool useHWAA) { |
2093 SkASSERT(!useHWAA || rt->isMultisampled()); | 2105 SkASSERT(!useHWAA || rt->isStencilBufferMultisampled()); |
2094 | 2106 |
2095 if (this->glCaps().multisampleDisableSupport()) { | 2107 if (this->glCaps().multisampleDisableSupport()) { |
2096 if (useHWAA) { | 2108 if (useHWAA) { |
2097 if (kYes_TriState != fMSAAEnabled) { | 2109 if (kYes_TriState != fMSAAEnabled) { |
2098 GL_CALL(Enable(GR_GL_MULTISAMPLE)); | 2110 GL_CALL(Enable(GR_GL_MULTISAMPLE)); |
2099 fMSAAEnabled = kYes_TriState; | 2111 fMSAAEnabled = kYes_TriState; |
2100 } | 2112 } |
2101 } else { | 2113 } else { |
2102 if (kNo_TriState != fMSAAEnabled) { | 2114 if (kNo_TriState != fMSAAEnabled) { |
2103 GL_CALL(Disable(GR_GL_MULTISAMPLE)); | 2115 GL_CALL(Disable(GR_GL_MULTISAMPLE)); |
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3067 this->setVertexArrayID(gpu, 0); | 3079 this->setVertexArrayID(gpu, 0); |
3068 } | 3080 } |
3069 int attrCount = gpu->glCaps().maxVertexAttributes(); | 3081 int attrCount = gpu->glCaps().maxVertexAttributes(); |
3070 if (fDefaultVertexArrayAttribState.count() != attrCount) { | 3082 if (fDefaultVertexArrayAttribState.count() != attrCount) { |
3071 fDefaultVertexArrayAttribState.resize(attrCount); | 3083 fDefaultVertexArrayAttribState.resize(attrCount); |
3072 } | 3084 } |
3073 attribState = &fDefaultVertexArrayAttribState; | 3085 attribState = &fDefaultVertexArrayAttribState; |
3074 } | 3086 } |
3075 return attribState; | 3087 return attribState; |
3076 } | 3088 } |
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