| |
| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #include "GrGpuGL.h" |
| #include "GrTypes.h" |
| #include "SkTemplates.h" |
| |
| static const GrGLuint GR_MAX_GLUINT = ~0; |
| static const GrGLint GR_INVAL_GLINT = ~0; |
| |
| // we use a spare texture unit to avoid |
| // mucking with the state of any of the stages. |
| static const int SPARE_TEX_UNIT = GrGpuGL::kNumStages; |
| |
| #define SKIP_CACHE_CHECK true |
| |
| static const GrGLenum gXfermodeCoeff2Blend[] = { |
| GR_GL_ZERO, |
| GR_GL_ONE, |
| GR_GL_SRC_COLOR, |
| GR_GL_ONE_MINUS_SRC_COLOR, |
| GR_GL_DST_COLOR, |
| GR_GL_ONE_MINUS_DST_COLOR, |
| GR_GL_SRC_ALPHA, |
| GR_GL_ONE_MINUS_SRC_ALPHA, |
| GR_GL_DST_ALPHA, |
| GR_GL_ONE_MINUS_DST_ALPHA, |
| GR_GL_CONSTANT_COLOR, |
| GR_GL_ONE_MINUS_CONSTANT_COLOR, |
| GR_GL_CONSTANT_ALPHA, |
| GR_GL_ONE_MINUS_CONSTANT_ALPHA, |
| |
| // extended blend coeffs |
| GR_GL_SRC1_COLOR, |
| GR_GL_ONE_MINUS_SRC1_COLOR, |
| GR_GL_SRC1_ALPHA, |
| GR_GL_ONE_MINUS_SRC1_ALPHA, |
| }; |
| |
| bool GrGpuGL::BlendCoeffReferencesConstant(GrBlendCoeff coeff) { |
| static const bool gCoeffReferencesBlendConst[] = { |
| false, |
| false, |
| false, |
| false, |
| false, |
| false, |
| false, |
| false, |
| false, |
| false, |
| true, |
| true, |
| true, |
| true, |
| |
| // extended blend coeffs |
| false, |
| false, |
| false, |
| false, |
| }; |
| return gCoeffReferencesBlendConst[coeff]; |
| GR_STATIC_ASSERT(kTotalBlendCoeffCount == GR_ARRAY_COUNT(gCoeffReferencesBlendConst)); |
| |
| GR_STATIC_ASSERT(0 == kZero_BlendCoeff); |
| GR_STATIC_ASSERT(1 == kOne_BlendCoeff); |
| GR_STATIC_ASSERT(2 == kSC_BlendCoeff); |
| GR_STATIC_ASSERT(3 == kISC_BlendCoeff); |
| GR_STATIC_ASSERT(4 == kDC_BlendCoeff); |
| GR_STATIC_ASSERT(5 == kIDC_BlendCoeff); |
| GR_STATIC_ASSERT(6 == kSA_BlendCoeff); |
| GR_STATIC_ASSERT(7 == kISA_BlendCoeff); |
| GR_STATIC_ASSERT(8 == kDA_BlendCoeff); |
| GR_STATIC_ASSERT(9 == kIDA_BlendCoeff); |
| GR_STATIC_ASSERT(10 == kConstC_BlendCoeff); |
| GR_STATIC_ASSERT(11 == kIConstC_BlendCoeff); |
| GR_STATIC_ASSERT(12 == kConstA_BlendCoeff); |
| GR_STATIC_ASSERT(13 == kIConstA_BlendCoeff); |
| |
| GR_STATIC_ASSERT(14 == kS2C_BlendCoeff); |
| GR_STATIC_ASSERT(15 == kIS2C_BlendCoeff); |
| GR_STATIC_ASSERT(16 == kS2A_BlendCoeff); |
| GR_STATIC_ASSERT(17 == kIS2A_BlendCoeff); |
| |
| // assertion for gXfermodeCoeff2Blend have to be in GrGpu scope |
| GR_STATIC_ASSERT(kTotalBlendCoeffCount == GR_ARRAY_COUNT(gXfermodeCoeff2Blend)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrGpuGL::AdjustTextureMatrix(const GrGLTexture* texture, |
| GrSamplerState::SampleMode mode, |
| GrMatrix* matrix) { |
| GrAssert(NULL != texture); |
| GrAssert(NULL != matrix); |
| if (GR_Scalar1 != texture->contentScaleX() || |
| GR_Scalar1 != texture->contentScaleY()) { |
| if (GrSamplerState::kRadial_SampleMode == mode) { |
| GrMatrix scale; |
| scale.setScale(texture->contentScaleX(), texture->contentScaleX()); |
| matrix->postConcat(scale); |
| } else if (GrSamplerState::kNormal_SampleMode == mode) { |
| GrMatrix scale; |
| scale.setScale(texture->contentScaleX(), texture->contentScaleY()); |
| matrix->postConcat(scale); |
| } else { |
| GrPrintf("We haven't handled NPOT adjustment for other sample modes!"); |
| } |
| } |
| GrGLTexture::Orientation orientation = texture->orientation(); |
| if (GrGLTexture::kBottomUp_Orientation == orientation) { |
| GrMatrix invY; |
| invY.setAll(GR_Scalar1, 0, 0, |
| 0, -GR_Scalar1, GR_Scalar1, |
| 0, 0, GrMatrix::I()[8]); |
| matrix->postConcat(invY); |
| } else { |
| GrAssert(GrGLTexture::kTopDown_Orientation == orientation); |
| } |
| } |
| |
| bool GrGpuGL::TextureMatrixIsIdentity(const GrGLTexture* texture, |
| const GrSamplerState& sampler) { |
| GrAssert(NULL != texture); |
| if (!sampler.getMatrix().isIdentity()) { |
| return false; |
| } |
| if (GR_Scalar1 != texture->contentScaleX() || |
| GR_Scalar1 != texture->contentScaleY()) { |
| return false; |
| } |
| GrGLTexture::Orientation orientation = texture->orientation(); |
| if (GrGLTexture::kBottomUp_Orientation == orientation) { |
| return false; |
| } else { |
| GrAssert(GrGLTexture::kTopDown_Orientation == orientation); |
| } |
| return true; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static bool gPrintStartupSpew; |
| |
| static bool fbo_test(int w, int h) { |
| |
| GrGLint savedFBO; |
| GrGLint savedTexUnit; |
| GR_GL_GetIntegerv(GR_GL_ACTIVE_TEXTURE, &savedTexUnit); |
| GR_GL_GetIntegerv(GR_GL_FRAMEBUFFER_BINDING, &savedFBO); |
| |
| GR_GL(ActiveTexture(GR_GL_TEXTURE0 + SPARE_TEX_UNIT)); |
| |
| GrGLuint testFBO; |
| GR_GL(GenFramebuffers(1, &testFBO)); |
| GR_GL(BindFramebuffer(GR_GL_FRAMEBUFFER, testFBO)); |
| GrGLuint testRTTex; |
| GR_GL(GenTextures(1, &testRTTex)); |
| GR_GL(BindTexture(GR_GL_TEXTURE_2D, testRTTex)); |
| // some implementations require texture to be mip-map complete before |
| // FBO with level 0 bound as color attachment will be framebuffer complete. |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MIN_FILTER, GR_GL_NEAREST)); |
| GR_GL(TexImage2D(GR_GL_TEXTURE_2D, 0, GR_GL_RGBA, w, h, |
| 0, GR_GL_RGBA, GR_GL_UNSIGNED_BYTE, NULL)); |
| GR_GL(BindTexture(GR_GL_TEXTURE_2D, 0)); |
| GR_GL(FramebufferTexture2D(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_TEXTURE_2D, testRTTex, 0)); |
| GrGLenum status = GR_GL(CheckFramebufferStatus(GR_GL_FRAMEBUFFER)); |
| GR_GL(DeleteFramebuffers(1, &testFBO)); |
| GR_GL(DeleteTextures(1, &testRTTex)); |
| |
| GR_GL(ActiveTexture(savedTexUnit)); |
| GR_GL(BindFramebuffer(GR_GL_FRAMEBUFFER, savedFBO)); |
| |
| return status == GR_GL_FRAMEBUFFER_COMPLETE; |
| } |
| |
| static bool probe_for_npot_render_target_support(bool hasNPOTTextureSupport) { |
| |
| /* Experimentation has found that some GLs that support NPOT textures |
| do not support FBOs with a NPOT texture. They report "unsupported" FBO |
| status. I don't know how to explicitly query for this. Do an |
| experiment. Note they may support NPOT with a renderbuffer but not a |
| texture. Presumably, the implementation bloats the renderbuffer |
| internally to the next POT. |
| */ |
| if (hasNPOTTextureSupport) { |
| return fbo_test(200, 200); |
| } |
| return false; |
| } |
| |
| static int probe_for_min_render_target_height(bool hasNPOTRenderTargetSupport, |
| int maxRenderTargetSize) { |
| /* The iPhone 4 has a restriction that for an FBO with texture color |
| attachment with height <= 8 then the width must be <= height. Here |
| we look for such a limitation. |
| */ |
| if (gPrintStartupSpew) { |
| GrPrintf("Small height FBO texture experiments\n"); |
| } |
| int minRenderTargetHeight = GR_INVAL_GLINT; |
| for (GrGLuint i = 1; i <= 256; hasNPOTRenderTargetSupport ? ++i : i *= 2) { |
| GrGLuint w = maxRenderTargetSize; |
| GrGLuint h = i; |
| if (fbo_test(w, h)) { |
| if (gPrintStartupSpew) { |
| GrPrintf("\t[%d, %d]: PASSED\n", w, h); |
| } |
| minRenderTargetHeight = i; |
| break; |
| } else { |
| if (gPrintStartupSpew) { |
| GrPrintf("\t[%d, %d]: FAILED\n", w, h); |
| } |
| } |
| } |
| GrAssert(GR_INVAL_GLINT != minRenderTargetHeight); |
| |
| return minRenderTargetHeight; |
| } |
| |
| static int probe_for_min_render_target_width(bool hasNPOTRenderTargetSupport, |
| int maxRenderTargetSize) { |
| |
| if (gPrintStartupSpew) { |
| GrPrintf("Small width FBO texture experiments\n"); |
| } |
| int minRenderTargetWidth = GR_INVAL_GLINT; |
| for (GrGLuint i = 1; i <= 256; hasNPOTRenderTargetSupport ? i *= 2 : ++i) { |
| GrGLuint w = i; |
| GrGLuint h = maxRenderTargetSize; |
| if (fbo_test(w, h)) { |
| if (gPrintStartupSpew) { |
| GrPrintf("\t[%d, %d]: PASSED\n", w, h); |
| } |
| minRenderTargetWidth = i; |
| break; |
| } else { |
| if (gPrintStartupSpew) { |
| GrPrintf("\t[%d, %d]: FAILED\n", w, h); |
| } |
| } |
| } |
| GrAssert(GR_INVAL_GLINT != minRenderTargetWidth); |
| |
| return minRenderTargetWidth; |
| } |
| |
| |
| GrGpuGL::GrGpuGL() |
| : fStencilFormats(8) { |
| |
| GrGLClearErr(); |
| |
| if (gPrintStartupSpew) { |
| GrPrintf("------------------------- create GrGpuGL %p --------------\n", |
| this); |
| GrPrintf("------ VENDOR %s\n", |
| GrGLGetGLInterface()->fGetString(GR_GL_VENDOR)); |
| GrPrintf("------ RENDERER %s\n", |
| GrGLGetGLInterface()->fGetString(GR_GL_RENDERER)); |
| GrPrintf("------ VERSION %s\n", |
| GrGLGetGLInterface()->fGetString(GR_GL_VERSION)); |
| GrPrintf("------ EXTENSIONS\n %s \n", |
| GrGLGetGLInterface()->fGetString(GR_GL_EXTENSIONS)); |
| } |
| |
| fGLVersion = gl_version_as_float(); |
| fExtensionString = (const char*) GR_GL(GetString(GR_GL_EXTENSIONS)); |
| |
| this->resetDirtyFlags(); |
| |
| GrGLint maxTextureUnits; |
| // check FS and fixed-function texture unit limits |
| // we only use textures in the fragment stage currently. |
| // checks are > to make sure we have a spare unit. |
| if (GR_GL_SUPPORT_DESKTOP || GR_GL_SUPPORT_ES2) { |
| GR_GL_GetIntegerv(GR_GL_MAX_TEXTURE_IMAGE_UNITS, &maxTextureUnits); |
| GrAssert(maxTextureUnits > kNumStages); |
| } |
| if (GR_GL_SUPPORT_DESKTOP || GR_GL_SUPPORT_ES1) { |
| GR_GL_GetIntegerv(GR_GL_MAX_TEXTURE_UNITS, &maxTextureUnits); |
| GrAssert(maxTextureUnits > kNumStages); |
| } |
| if (GR_GL_SUPPORT_ES2) { |
| GR_GL_GetIntegerv(GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS, |
| &fMaxFragmentUniformVectors); |
| } else if (GR_GL_SUPPORT_DESKTOP) { |
| GrGLint max; |
| GR_GL_GetIntegerv(GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &max); |
| fMaxFragmentUniformVectors = max / 4; |
| } else { |
| fMaxFragmentUniformVectors = 16; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////// |
| // Check for supported features. |
| |
| this->setupStencilFormats(); |
| |
| GrGLint numFormats; |
| GR_GL_GetIntegerv(GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numFormats); |
| SkAutoSTMalloc<10, GrGLint> formats(numFormats); |
| GR_GL_GetIntegerv(GR_GL_COMPRESSED_TEXTURE_FORMATS, formats); |
| for (int i = 0; i < numFormats; ++i) { |
| if (formats[i] == GR_GL_PALETTE8_RGBA8) { |
| f8bitPaletteSupport = true; |
| break; |
| } |
| } |
| |
| if (gPrintStartupSpew) { |
| GrPrintf("Palette8 support: %s\n", (f8bitPaletteSupport ? "YES" : "NO")); |
| } |
| |
| GR_STATIC_ASSERT(0 == kNone_GrAALevel); |
| GR_STATIC_ASSERT(1 == kLow_GrAALevel); |
| GR_STATIC_ASSERT(2 == kMed_GrAALevel); |
| GR_STATIC_ASSERT(3 == kHigh_GrAALevel); |
| |
| memset(fAASamples, 0, sizeof(fAASamples)); |
| fMSFBOType = kNone_MSFBO; |
| if (GR_GL_SUPPORT_ES) { |
| if (this->hasExtension("GL_CHROMIUM_framebuffer_multisample")) { |
| // chrome's extension is equivalent to the EXT msaa |
| // and fbo_blit extensions. |
| fMSFBOType = kDesktopEXT_MSFBO; |
| } else if (this->hasExtension("GL_APPLE_framebuffer_multisample")) { |
| fMSFBOType = kAppleES_MSFBO; |
| } |
| } else { |
| GrAssert(GR_GL_SUPPORT_DESKTOP); |
| if ((fGLVersion >= 3.f) || this->hasExtension("GL_ARB_framebuffer_object")) { |
| fMSFBOType = kDesktopARB_MSFBO; |
| } else if (this->hasExtension("GL_EXT_framebuffer_multisample") && |
| this->hasExtension("GL_EXT_framebuffer_blit")) { |
| fMSFBOType = kDesktopEXT_MSFBO; |
| } |
| } |
| if (gPrintStartupSpew) { |
| switch (fMSFBOType) { |
| case kNone_MSFBO: |
| GrPrintf("MSAA Support: NONE\n"); |
| break; |
| case kDesktopARB_MSFBO: |
| GrPrintf("MSAA Support: DESKTOP ARB.\n"); |
| break; |
| case kDesktopEXT_MSFBO: |
| GrPrintf("MSAA Support: DESKTOP EXT.\n"); |
| break; |
| case kAppleES_MSFBO: |
| GrPrintf("MSAA Support: APPLE ES.\n"); |
| break; |
| } |
| } |
| |
| if (kNone_MSFBO != fMSFBOType) { |
| GrGLint maxSamples; |
| GR_GL_GetIntegerv(GR_GL_MAX_SAMPLES, &maxSamples); |
| if (maxSamples > 1 ) { |
| fAASamples[kNone_GrAALevel] = 0; |
| fAASamples[kLow_GrAALevel] = GrMax(2, |
| GrFixedFloorToInt((GR_FixedHalf) * |
| maxSamples)); |
| fAASamples[kMed_GrAALevel] = GrMax(2, |
| GrFixedFloorToInt(((GR_Fixed1*3)/4) * |
| maxSamples)); |
| fAASamples[kHigh_GrAALevel] = maxSamples; |
| } |
| if (gPrintStartupSpew) { |
| GrPrintf("\tMax Samples: %d\n", maxSamples); |
| } |
| } |
| fFSAASupport = fAASamples[kHigh_GrAALevel] > 0; |
| |
| if (GR_GL_SUPPORT_DESKTOP) { |
| fHasStencilWrap = (fGLVersion >= 1.4f) || |
| this->hasExtension("GL_EXT_stencil_wrap"); |
| } else { |
| fHasStencilWrap = (fGLVersion >= 2.0f) || this->hasExtension("GL_OES_stencil_wrap"); |
| } |
| if (gPrintStartupSpew) { |
| GrPrintf("Stencil Wrap: %s\n", (fHasStencilWrap ? "YES" : "NO")); |
| } |
| |
| if (GR_GL_SUPPORT_DESKTOP) { |
| // we could also look for GL_ATI_separate_stencil extension or |
| // GL_EXT_stencil_two_side but they use different function signatures |
| // than GL2.0+ (and than each other). |
| fTwoSidedStencilSupport = (fGLVersion >= 2.f); |
| // supported on GL 1.4 and higher or by extension |
| fStencilWrapOpsSupport = (fGLVersion >= 1.4f) || |
| this->hasExtension("GL_EXT_stencil_wrap"); |
| } else { |
| // ES 2 has two sided stencil but 1.1 doesn't. There doesn't seem to be |
| // an ES1 extension. |
| fTwoSidedStencilSupport = (fGLVersion >= 2.f); |
| // stencil wrap support is in ES2, ES1 requires extension. |
| fStencilWrapOpsSupport = (fGLVersion >= 2.f) || |
| this->hasExtension("GL_OES_stencil_wrap"); |
| } |
| if (gPrintStartupSpew) { |
| GrPrintf("Stencil Caps: TwoSide: %s, Wrap: %s\n", |
| (fTwoSidedStencilSupport ? "YES" : "NO"), |
| (fStencilWrapOpsSupport ? "YES" : "NO")); |
| } |
| |
| if (GR_GL_SUPPORT_DESKTOP) { |
| fRGBA8Renderbuffer = true; |
| } else { |
| fRGBA8Renderbuffer = this->hasExtension("GL_OES_rgb8_rgba8"); |
| } |
| if (gPrintStartupSpew) { |
| GrPrintf("RGBA Renderbuffer: %s\n", (fRGBA8Renderbuffer ? "YES" : "NO")); |
| } |
| |
| |
| if (GR_GL_SUPPORT_ES) { |
| if (GR_GL_32BPP_COLOR_FORMAT == GR_GL_BGRA) { |
| GrAssert(this->hasExtension("GL_EXT_texture_format_BGRA8888")); |
| } |
| } |
| |
| if (GR_GL_SUPPORT_DESKTOP) { |
| fBufferLockSupport = true; // we require VBO support and the desktop VBO |
| // extension includes glMapBuffer. |
| } else { |
| fBufferLockSupport = this->hasExtension("GL_OES_mapbuffer"); |
| } |
| |
| if (gPrintStartupSpew) { |
| GrPrintf("Map Buffer: %s\n", (fBufferLockSupport ? "YES" : "NO")); |
| } |
| |
| if (GR_GL_SUPPORT_DESKTOP) { |
| if (fGLVersion >= 2.f || |
| this->hasExtension("GL_ARB_texture_non_power_of_two")) { |
| fNPOTTextureTileSupport = true; |
| fNPOTTextureSupport = true; |
| } else { |
| fNPOTTextureTileSupport = false; |
| fNPOTTextureSupport = false; |
| } |
| } else { |
| if (fGLVersion >= 2.f) { |
| fNPOTTextureSupport = true; |
| fNPOTTextureTileSupport = this->hasExtension("GL_OES_texture_npot"); |
| } else { |
| fNPOTTextureSupport = |
| this->hasExtension("GL_APPLE_texture_2D_limited_npot"); |
| fNPOTTextureTileSupport = false; |
| } |
| } |
| |
| fAALineSupport = GR_GL_SUPPORT_DESKTOP; |
| |
| //////////////////////////////////////////////////////////////////////////// |
| // Experiments to determine limitations that can't be queried. |
| // TODO: Make these a preprocess that generate some compile time constants. |
| // TODO: probe once at startup, rather than once per context creation. |
| |
| int expectNPOTTargets = GrGLGetGLInterface()->fNPOTRenderTargetSupport; |
| if (expectNPOTTargets == kProbe_GrGLCapability) { |
| fNPOTRenderTargetSupport = |
| probe_for_npot_render_target_support(fNPOTTextureSupport); |
| } else { |
| GrAssert(expectNPOTTargets == 0 || expectNPOTTargets == 1); |
| fNPOTRenderTargetSupport = static_cast<bool>(expectNPOTTargets); |
| } |
| |
| if (gPrintStartupSpew) { |
| if (fNPOTTextureSupport) { |
| GrPrintf("NPOT textures supported\n"); |
| if (fNPOTTextureTileSupport) { |
| GrPrintf("NPOT texture tiling supported\n"); |
| } else { |
| GrPrintf("NPOT texture tiling NOT supported\n"); |
| } |
| if (fNPOTRenderTargetSupport) { |
| GrPrintf("NPOT render targets supported\n"); |
| } else { |
| GrPrintf("NPOT render targets NOT supported\n"); |
| } |
| } else { |
| GrPrintf("NPOT textures NOT supported\n"); |
| } |
| } |
| |
| GR_GL_GetIntegerv(GR_GL_MAX_TEXTURE_SIZE, &fMaxTextureSize); |
| GR_GL_GetIntegerv(GR_GL_MAX_RENDERBUFFER_SIZE, &fMaxRenderTargetSize); |
| // Our render targets are always created with textures as the color |
| // attachment, hence this min: |
| fMaxRenderTargetSize = GrMin(fMaxTextureSize, fMaxRenderTargetSize); |
| |
| fMinRenderTargetHeight = GrGLGetGLInterface()->fMinRenderTargetHeight; |
| if (fMinRenderTargetHeight == kProbe_GrGLCapability) { |
| fMinRenderTargetHeight = |
| probe_for_min_render_target_height(fNPOTRenderTargetSupport, |
| fMaxRenderTargetSize); |
| } |
| |
| fMinRenderTargetWidth = GrGLGetGLInterface()->fMinRenderTargetWidth; |
| if (fMinRenderTargetWidth == kProbe_GrGLCapability) { |
| fMinRenderTargetWidth = |
| probe_for_min_render_target_width(fNPOTRenderTargetSupport, |
| fMaxRenderTargetSize); |
| } |
| |
| fLastSuccessfulStencilFmtIdx = 0; |
| } |
| |
| GrGpuGL::~GrGpuGL() { |
| } |
| |
| void GrGpuGL::resetContext() { |
| // We detect cases when blending is effectively off |
| fHWBlendDisabled = false; |
| GR_GL(Enable(GR_GL_BLEND)); |
| |
| // we don't use the zb at all |
| GR_GL(Disable(GR_GL_DEPTH_TEST)); |
| GR_GL(DepthMask(GR_GL_FALSE)); |
| |
| GR_GL(Disable(GR_GL_CULL_FACE)); |
| GR_GL(FrontFace(GR_GL_CCW)); |
| fHWDrawState.fDrawFace = kBoth_DrawFace; |
| |
| GR_GL(Disable(GR_GL_DITHER)); |
| if (GR_GL_SUPPORT_DESKTOP) { |
| GR_GL(Disable(GR_GL_LINE_SMOOTH)); |
| GR_GL(Disable(GR_GL_POINT_SMOOTH)); |
| GR_GL(Disable(GR_GL_MULTISAMPLE)); |
| fHWAAState.fMSAAEnabled = false; |
| fHWAAState.fSmoothLineEnabled = false; |
| } |
| |
| GR_GL(ColorMask(GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE)); |
| fHWDrawState.fFlagBits = 0; |
| |
| // we only ever use lines in hairline mode |
| GR_GL(LineWidth(1)); |
| |
| // invalid |
| fActiveTextureUnitIdx = -1; |
| |
| // illegal values |
| fHWDrawState.fSrcBlend = (GrBlendCoeff)-1; |
| fHWDrawState.fDstBlend = (GrBlendCoeff)-1; |
| |
| fHWDrawState.fBlendConstant = 0x00000000; |
| GR_GL(BlendColor(0,0,0,0)); |
| |
| fHWDrawState.fColor = GrColor_ILLEGAL; |
| |
| fHWDrawState.fViewMatrix = GrMatrix::InvalidMatrix(); |
| |
| for (int s = 0; s < kNumStages; ++s) { |
| fHWDrawState.fTextures[s] = NULL; |
| fHWDrawState.fSamplerStates[s].setRadial2Params(-GR_ScalarMax, |
| -GR_ScalarMax, |
| true); |
| fHWDrawState.fSamplerStates[s].setMatrix(GrMatrix::InvalidMatrix()); |
| fHWDrawState.fSamplerStates[s].setConvolutionParams(0, NULL, NULL); |
| } |
| |
| fHWBounds.fScissorRect.invalidate(); |
| fHWBounds.fScissorEnabled = false; |
| GR_GL(Disable(GR_GL_SCISSOR_TEST)); |
| fHWBounds.fViewportRect.invalidate(); |
| |
| fHWDrawState.fStencilSettings.invalidate(); |
| fHWStencilClip = false; |
| fClipState.fClipIsDirty = true; |
| fClipState.fClipInStencil = false; |
| |
| fHWGeometryState.fIndexBuffer = NULL; |
| fHWGeometryState.fVertexBuffer = NULL; |
| |
| fHWGeometryState.fArrayPtrsDirty = true; |
| |
| GR_GL(ColorMask(GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE)); |
| fHWDrawState.fRenderTarget = NULL; |
| } |
| |
| GrResource* GrGpuGL::onCreatePlatformSurface(const GrPlatformSurfaceDesc& desc) { |
| |
| bool isTexture = kTexture_GrPlatformSurfaceType == desc.fSurfaceType || |
| kTextureRenderTarget_GrPlatformSurfaceType == desc.fSurfaceType; |
| bool isRenderTarget = kRenderTarget_GrPlatformSurfaceType == desc.fSurfaceType || |
| kTextureRenderTarget_GrPlatformSurfaceType == desc.fSurfaceType; |
| |
| GrGLRenderTarget::GLRenderTargetIDs rtIDs; |
| if (isRenderTarget) { |
| rtIDs.fRTFBOID = desc.fPlatformRenderTarget; |
| if (kIsMultisampled_GrPlatformRenderTargetFlagBit & desc.fRenderTargetFlags) { |
| if (kGrCanResolve_GrPlatformRenderTargetFlagBit & desc.fRenderTargetFlags) { |
| rtIDs.fTexFBOID = desc.fPlatformResolveDestination; |
| } else { |
| GrAssert(!isTexture); // this should have been filtered by GrContext |
| rtIDs.fTexFBOID = GrGLRenderTarget::kUnresolvableFBOID; |
| } |
| } else { |
| rtIDs.fTexFBOID = desc.fPlatformRenderTarget; |
| } |
| // we don't know what the RB ids are without glGets and we don't care |
| // since we aren't responsible for deleting them. |
| rtIDs.fStencilRenderbufferID = 0; |
| rtIDs.fMSColorRenderbufferID = 0; |
| |
| rtIDs.fOwnIDs = false; |
| } else { |
| rtIDs.reset(); |
| } |
| |
| if (isTexture) { |
| GrGLTexture::GLTextureDesc texDesc; |
| GrGLenum dontCare; |
| if (!canBeTexture(desc.fConfig, &dontCare, |
| &texDesc.fUploadFormat, |
| &texDesc.fUploadType)) { |
| return NULL; |
| } |
| |
| GrGLTexture::TexParams params; |
| |
| texDesc.fAllocWidth = texDesc.fContentWidth = desc.fWidth; |
| texDesc.fAllocHeight = texDesc.fContentHeight = desc.fHeight; |
| |
| texDesc.fFormat = desc.fConfig; |
| texDesc.fOrientation = GrGLTexture::kBottomUp_Orientation; |
| texDesc.fStencilBits = desc.fStencilBits; |
| texDesc.fTextureID = desc.fPlatformTexture; |
| texDesc.fUploadByteCount = GrBytesPerPixel(desc.fConfig); |
| texDesc.fOwnsID = false; |
| |
| params.invalidate(); // rather than do glGets. |
| |
| return new GrGLTexture(this, texDesc, rtIDs, params); |
| } else { |
| GrGLIRect viewport; |
| viewport.fLeft = 0; |
| viewport.fBottom = 0; |
| viewport.fWidth = desc.fWidth; |
| viewport.fHeight = desc.fHeight; |
| |
| bool isMSAA = kIsMultisampled_GrPlatformRenderTargetFlagBit & |
| desc.fRenderTargetFlags; |
| |
| return new GrGLRenderTarget(this, rtIDs, NULL, desc.fConfig, |
| desc.fStencilBits, isMSAA, viewport, NULL); |
| } |
| } |
| |
| namespace { |
| |
| static const GrGLenum kUnknownGLFormat = ~0; |
| |
| GrGLenum get_fbo_color_format() { |
| GrGLint cbType; |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, |
| &cbType); |
| GrGLint cbID; |
| GrGLint cbFormat; |
| switch (cbType) { |
| case GR_GL_RENDERBUFFER: |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, |
| &cbID); |
| GR_GL(BindRenderbuffer(GR_GL_RENDERBUFFER, cbID)); |
| GR_GL_GetRenderbufferParameteriv(GR_GL_RENDERBUFFER, |
| GR_GL_RENDERBUFFER_INTERNAL_FORMAT, |
| &cbFormat); |
| return cbFormat; |
| break; |
| case GR_GL_TEXTURE: |
| // ES doesn't have glGetTexLevelParameter |
| if (GR_GL_SUPPORT_DESKTOP) { |
| GrGLint cbLevel; |
| GrGLint cbFace; |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, |
| &cbID); |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL, |
| &cbLevel); |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE, |
| &cbFace); |
| GrGLenum bind; |
| GrGLenum target; |
| if (cbFace) { |
| bind = GR_GL_TEXTURE_CUBE_MAP; |
| target = cbFace; |
| } else { |
| bind = GR_GL_TEXTURE_2D; |
| target = GR_GL_TEXTURE_2D; |
| } |
| GR_GL(BindTexture(bind, cbID)); |
| GR_GL_GetTexLevelParameteriv(target, cbLevel, |
| GR_GL_TEXTURE_INTERNAL_FORMAT, &cbFormat); |
| return cbFormat; |
| } else { |
| return kUnknownGLFormat; |
| } |
| break; |
| default: |
| // we can get here with FBO 0, not a render buffer or a texture |
| return kUnknownGLFormat; |
| } |
| } |
| |
| GrPixelConfig internal_color_format_to_config(GrGLenum iFormat) { |
| switch (iFormat) { |
| case GR_GL_RGB565: |
| return kRGB_565_GrPixelConfig; |
| case GR_GL_RGBA4: |
| return kRGBA_4444_GrPixelConfig; |
| case GR_GL_RGBA8: |
| case GR_GL_SRGB8_ALPHA8: |
| case GR_GL_SRGB_ALPHA: |
| case GR_GL_RGBA: |
| case GR_GL_BGRA: |
| return kRGBA_8888_GrPixelConfig; |
| case GR_GL_RGB8: |
| case GR_GL_SRGB8: |
| case GR_GL_SRGB: |
| return kRGBX_8888_GrPixelConfig; |
| default: |
| // there are many GL formats we don't have enums |
| // for. We should still render to them if the client |
| // asks us. |
| return kUnknown_GrPixelConfig; |
| } |
| } |
| |
| GrPixelConfig get_implied_color_config(bool arbFBOExtension) { |
| GrGLint rSize, bSize, gSize, aSize; |
| if (arbFBOExtension) { |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE, &rSize); |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE, &gSize); |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE, &bSize); |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE, &aSize); |
| } else { |
| GR_GL_GetIntegerv(GR_GL_RED_BITS, &rSize); |
| GR_GL_GetIntegerv(GR_GL_GREEN_BITS, &gSize); |
| GR_GL_GetIntegerv(GR_GL_BLUE_BITS, &bSize); |
| GR_GL_GetIntegerv(GR_GL_ALPHA_BITS, &aSize); |
| } |
| |
| if(8 == rSize && 8 == gSize && 8 == bSize) { |
| if (0 == aSize) { |
| return kRGBX_8888_GrPixelConfig; |
| } else if (8 == aSize) { |
| return kRGBA_8888_GrPixelConfig; |
| } |
| } else if (4 == rSize && 4 == gSize && 4 == bSize && 4 == aSize) { |
| return kRGBA_4444_GrPixelConfig; |
| } else if (5 == rSize && 6 == gSize && 5 == bSize && 0 == aSize) { |
| return kRGB_565_GrPixelConfig; |
| } |
| return kUnknown_GrPixelConfig; |
| } |
| |
| int get_fbo_stencil_bits(bool arbFBOExtension) { |
| GrGLint stencilBits; |
| if (arbFBOExtension) { |
| GR_GL_GetFramebufferAttachmentParameteriv(GR_GL_FRAMEBUFFER, |
| GR_GL_STENCIL_ATTACHMENT, |
| GR_GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE, |
| &stencilBits); |
| } else { |
| GR_GL_GetIntegerv(GR_GL_STENCIL_BITS, &stencilBits); |
| } |
| return stencilBits; |
| } |
| } |
| |
| GrRenderTarget* GrGpuGL::onCreateRenderTargetFrom3DApiState() { |
| |
| GrGLRenderTarget::GLRenderTargetIDs rtIDs; |
| |
| GR_GL_GetIntegerv(GR_GL_FRAMEBUFFER_BINDING, (GrGLint*)&rtIDs.fRTFBOID); |
| rtIDs.fTexFBOID = rtIDs.fRTFBOID; |
| rtIDs.fMSColorRenderbufferID = 0; |
| rtIDs.fStencilRenderbufferID = 0; |
| |
| bool arbFBO = (GR_GL_SUPPORT_DESKTOP && (fGLVersion > 3.0 || |
| this->hasExtension("GL_ARB_framebuffer_object"))); |
| |
| GrGLIRect viewport; |
| viewport.setFromGLViewport(); |
| int stencilBits = get_fbo_stencil_bits(arbFBO); |
| |
| GrPixelConfig config; |
| GrGLint samples; |
| GR_GL_GetIntegerv(GR_GL_SAMPLES, &samples); |
| GrGLenum fmat = get_fbo_color_format(); |
| if (kUnknownGLFormat == fmat) { |
| config = get_implied_color_config(arbFBO); |
| } else { |
| config = internal_color_format_to_config(fmat); |
| } |
| |
| // may have to bind a texture to gets its format |
| this->setSpareTextureUnit(); |
| |
| rtIDs.fOwnIDs = false; |
| |
| return new GrGLRenderTarget(this, rtIDs, NULL, config, stencilBits, |
| (samples > 0), viewport, NULL); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrGpuGL::setupStencilFormats() { |
| |
| // Build up list of legal stencil formats (though perhaps not supported on |
| // the particular gpu/driver) from most preferred to least. |
| |
| // these consts are in order of most preferred to least preferred |
| // we don't bother with GL_STENCIL_INDEX1 or GL_DEPTH32F_STENCIL8 |
| static const StencilFormat gS8 = {GR_GL_STENCIL_INDEX8, 8, false}; |
| static const StencilFormat gS16 = {GR_GL_STENCIL_INDEX16, 16, false}; |
| static const StencilFormat gD24S8 = {GR_GL_DEPTH24_STENCIL8, 8, true }; |
| static const StencilFormat gS4 = {GR_GL_STENCIL_INDEX4, 4, false}; |
| static const StencilFormat gS = {GR_GL_STENCIL_INDEX, gUNKNOWN_BITCOUNT, false}; |
| static const StencilFormat gDS = {GR_GL_DEPTH_STENCIL, gUNKNOWN_BITCOUNT, true }; |
| |
| if (GR_GL_SUPPORT_DESKTOP) { |
| bool supportsPackedDS = fGLVersion >= 3.0f || |
| this->hasExtension("GL_EXT_packed_depth_stencil") || |
| this->hasExtension("GL_ARB_framebuffer_object"); |
| |
| // S1 thru S16 formats are in GL 3.0+, EXT_FBO, and ARB_FBO since we |
| // require FBO support we can expect these are legal formats and don't |
| // check. These also all support the unsized GL_STENCIL_INDEX. |
| fStencilFormats.push_back() = gS8; |
| fStencilFormats.push_back() = gS16; |
| if (supportsPackedDS) { |
| fStencilFormats.push_back() = gD24S8; |
| } |
| fStencilFormats.push_back() = gS4; |
| if (supportsPackedDS) { |
| fStencilFormats.push_back() = gDS; |
| } |
| } else { |
| // ES2 has STENCIL_INDEX8 without extensions. |
| // ES1 with GL_OES_framebuffer_object (which we require for ES1) |
| // introduces tokens for S1 thu S8 but there are separate extensions |
| // that make them legal (GL_OES_stencil1, ...). |
| // GL_OES_packed_depth_stencil adds DEPTH24_STENCIL8 |
| // ES doesn't support using the unsized formats. |
| |
| if (fGLVersion >= 2.f || this->hasExtension("GL_OES_stencil8")) { |
| fStencilFormats.push_back() = gS8; |
| } |
| //fStencilFormats.push_back() = gS16; |
| if (this->hasExtension("GL_OES_packed_depth_stencil")) { |
| fStencilFormats.push_back() = gD24S8; |
| } |
| if (this->hasExtension("GL_OES_stencil4")) { |
| fStencilFormats.push_back() = gS4; |
| } |
| // we require some stencil format. |
| GrAssert(fStencilFormats.count() > 0); |
| } |
| } |
| |
| // good to set a break-point here to know when createTexture fails |
| static GrTexture* return_null_texture() { |
| // GrAssert(!"null texture"); |
| return NULL; |
| } |
| |
| #if GR_DEBUG |
| static size_t as_size_t(int x) { |
| return x; |
| } |
| #endif |
| |
| GrTexture* GrGpuGL::onCreateTexture(const GrTextureDesc& desc, |
| const void* srcData, |
| size_t rowBytes) { |
| |
| #if GR_COLLECT_STATS |
| ++fStats.fTextureCreateCnt; |
| #endif |
| |
| this->setSpareTextureUnit(); |
| |
| static const GrGLTexture::TexParams DEFAULT_PARAMS = { |
| GR_GL_NEAREST, |
| GR_GL_CLAMP_TO_EDGE, |
| GR_GL_CLAMP_TO_EDGE |
| }; |
| |
| GrGLTexture::GLTextureDesc glDesc; |
| GrGLenum internalFormat; |
| |
| glDesc.fContentWidth = desc.fWidth; |
| glDesc.fContentHeight = desc.fHeight; |
| glDesc.fAllocWidth = desc.fWidth; |
| glDesc.fAllocHeight = desc.fHeight; |
| glDesc.fStencilBits = 0; |
| glDesc.fFormat = desc.fFormat; |
| glDesc.fOwnsID = true; |
| |
| bool renderTarget = 0 != (desc.fFlags & kRenderTarget_GrTextureFlagBit); |
| if (!canBeTexture(desc.fFormat, |
| &internalFormat, |
| &glDesc.fUploadFormat, |
| &glDesc.fUploadType)) { |
| return return_null_texture(); |
| } |
| |
| // We keep GrRenderTargets in GL's normal orientation so that they |
| // can be drawn to by the outside world without the client having |
| // to render upside down. |
| glDesc.fOrientation = renderTarget ? GrGLTexture::kBottomUp_Orientation : |
| GrGLTexture::kTopDown_Orientation; |
| |
| GrAssert(as_size_t(desc.fAALevel) < GR_ARRAY_COUNT(fAASamples)); |
| GrGLint samples = fAASamples[desc.fAALevel]; |
| if (kNone_MSFBO == fMSFBOType && desc.fAALevel != kNone_GrAALevel) { |
| GrPrintf("AA RT requested but not supported on this platform."); |
| } |
| |
| glDesc.fUploadByteCount = GrBytesPerPixel(desc.fFormat); |
| |
| // in case we need a temporary, trimmed copy of the src pixels |
| SkAutoSMalloc<128 * 128> tempStorage; |
| |
| if (!rowBytes) { |
| rowBytes = glDesc.fUploadByteCount * desc.fWidth; |
| } |
| /* |
| * check whether to allocate a temporary buffer for flipping y or |
| * because our srcData has extra bytes past each row. If so, we need |
| * to trim those off here, since GL ES doesn't let us specify |
| * GL_UNPACK_ROW_LENGTH. |
| */ |
| bool flipY = GrGLTexture::kBottomUp_Orientation == glDesc.fOrientation; |
| if (GR_GL_SUPPORT_DESKTOP && !flipY) { |
| if (srcData && rowBytes != desc.fWidth * glDesc.fUploadByteCount) { |
| GR_GL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, |
| rowBytes / glDesc.fUploadByteCount)); |
| } |
| } else { |
| size_t trimRowBytes = desc.fWidth * glDesc.fUploadByteCount; |
| if (srcData && (trimRowBytes < rowBytes || flipY)) { |
| // copy the data into our new storage, skipping the trailing bytes |
| size_t trimSize = desc.fHeight * trimRowBytes; |
| const char* src = (const char*)srcData; |
| if (flipY) { |
| src += (desc.fHeight - 1) * rowBytes; |
| } |
| char* dst = (char*)tempStorage.realloc(trimSize); |
| for (int y = 0; y < desc.fHeight; y++) { |
| memcpy(dst, src, trimRowBytes); |
| if (flipY) { |
| src -= rowBytes; |
| } else { |
| src += rowBytes; |
| } |
| dst += trimRowBytes; |
| } |
| // now point srcData to our trimmed version |
| srcData = tempStorage.get(); |
| rowBytes = trimRowBytes; |
| } |
| } |
| |
| if (renderTarget) { |
| if (!this->npotRenderTargetSupport()) { |
| glDesc.fAllocWidth = GrNextPow2(desc.fWidth); |
| glDesc.fAllocHeight = GrNextPow2(desc.fHeight); |
| } |
| |
| glDesc.fAllocWidth = GrMax(fMinRenderTargetWidth, |
| glDesc.fAllocWidth); |
| glDesc.fAllocHeight = GrMax(fMinRenderTargetHeight, |
| glDesc.fAllocHeight); |
| if (glDesc.fAllocWidth > fMaxRenderTargetSize || |
| glDesc.fAllocHeight > fMaxRenderTargetSize) { |
| return return_null_texture(); |
| } |
| } else if (!this->npotTextureSupport()) { |
| glDesc.fAllocWidth = GrNextPow2(desc.fWidth); |
| glDesc.fAllocHeight = GrNextPow2(desc.fHeight); |
| if (glDesc.fAllocWidth > fMaxTextureSize || |
| glDesc.fAllocHeight > fMaxTextureSize) { |
| return return_null_texture(); |
| } |
| } |
| |
| GR_GL(GenTextures(1, &glDesc.fTextureID)); |
| if (!glDesc.fTextureID) { |
| return return_null_texture(); |
| } |
| |
| GR_GL(BindTexture(GR_GL_TEXTURE_2D, glDesc.fTextureID)); |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_MAG_FILTER, |
| DEFAULT_PARAMS.fFilter)); |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_MIN_FILTER, |
| DEFAULT_PARAMS.fFilter)); |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_WRAP_S, |
| DEFAULT_PARAMS.fWrapS)); |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_WRAP_T, |
| DEFAULT_PARAMS.fWrapT)); |
| |
| GR_GL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, glDesc.fUploadByteCount)); |
| if (kIndex_8_GrPixelConfig == desc.fFormat && |
| supports8BitPalette()) { |
| // ES only supports CompressedTexImage2D, not CompressedTexSubimage2D |
| GrAssert(desc.fWidth == glDesc.fAllocWidth); |
| GrAssert(desc.fHeight == glDesc.fAllocHeight); |
| GrGLsizei imageSize = glDesc.fAllocWidth * glDesc.fAllocHeight + |
| kGrColorTableSize; |
| GR_GL(CompressedTexImage2D(GR_GL_TEXTURE_2D, 0, glDesc.fUploadFormat, |
| glDesc.fAllocWidth, glDesc.fAllocHeight, |
| 0, imageSize, srcData)); |
| GrGLRestoreResetRowLength(); |
| } else { |
| if (NULL != srcData && (glDesc.fAllocWidth != desc.fWidth || |
| glDesc.fAllocHeight != desc.fHeight)) { |
| GR_GL(TexImage2D(GR_GL_TEXTURE_2D, 0, internalFormat, |
| glDesc.fAllocWidth, glDesc.fAllocHeight, |
| 0, glDesc.fUploadFormat, glDesc.fUploadType, NULL)); |
| GR_GL(TexSubImage2D(GR_GL_TEXTURE_2D, 0, 0, 0, desc.fWidth, |
| desc.fHeight, glDesc.fUploadFormat, |
| glDesc.fUploadType, srcData)); |
| GrGLRestoreResetRowLength(); |
| |
| int extraW = glDesc.fAllocWidth - desc.fWidth; |
| int extraH = glDesc.fAllocHeight - desc.fHeight; |
| int maxTexels = extraW * extraH; |
| maxTexels = GrMax(extraW * desc.fHeight, maxTexels); |
| maxTexels = GrMax(desc.fWidth * extraH, maxTexels); |
| |
| SkAutoSMalloc<128*128> texels(glDesc.fUploadByteCount * maxTexels); |
| |
| // rowBytes is actual stride between rows in srcData |
| // rowDataBytes is the actual amount of non-pad data in a row |
| // and the stride used for uploading extraH rows. |
| uint32_t rowDataBytes = desc.fWidth * glDesc.fUploadByteCount; |
| if (extraH) { |
| uint8_t* lastRowStart = (uint8_t*) srcData + |
| (desc.fHeight - 1) * rowBytes; |
| uint8_t* extraRowStart = (uint8_t*)texels.get(); |
| |
| for (int i = 0; i < extraH; ++i) { |
| memcpy(extraRowStart, lastRowStart, rowDataBytes); |
| extraRowStart += rowDataBytes; |
| } |
| GR_GL(TexSubImage2D(GR_GL_TEXTURE_2D, 0, 0, desc.fHeight, desc.fWidth, |
| extraH, glDesc.fUploadFormat, glDesc.fUploadType, |
| texels.get())); |
| } |
| if (extraW) { |
| uint8_t* edgeTexel = (uint8_t*)srcData + rowDataBytes - glDesc.fUploadByteCount; |
| uint8_t* extraTexel = (uint8_t*)texels.get(); |
| for (int j = 0; j < desc.fHeight; ++j) { |
| for (int i = 0; i < extraW; ++i) { |
| memcpy(extraTexel, edgeTexel, glDesc.fUploadByteCount); |
| extraTexel += glDesc.fUploadByteCount; |
| } |
| edgeTexel += rowBytes; |
| } |
| GR_GL(TexSubImage2D(GR_GL_TEXTURE_2D, 0, desc.fWidth, 0, extraW, |
| desc.fHeight, glDesc.fUploadFormat, |
| glDesc.fUploadType, texels.get())); |
| } |
| if (extraW && extraH) { |
| uint8_t* cornerTexel = (uint8_t*)srcData + desc.fHeight * rowBytes |
| - glDesc.fUploadByteCount; |
| uint8_t* extraTexel = (uint8_t*)texels.get(); |
| for (int i = 0; i < extraW*extraH; ++i) { |
| memcpy(extraTexel, cornerTexel, glDesc.fUploadByteCount); |
| extraTexel += glDesc.fUploadByteCount; |
| } |
| GR_GL(TexSubImage2D(GR_GL_TEXTURE_2D, 0, desc.fWidth, desc.fHeight, |
| extraW, extraH, glDesc.fUploadFormat, |
| glDesc.fUploadType, texels.get())); |
| } |
| |
| } else { |
| GR_GL(TexImage2D(GR_GL_TEXTURE_2D, 0, internalFormat, glDesc.fAllocWidth, |
| glDesc.fAllocHeight, 0, glDesc.fUploadFormat, |
| glDesc.fUploadType, srcData)); |
| GrGLRestoreResetRowLength(); |
| } |
| } |
| |
| |
| GrGLRenderTarget::GLRenderTargetIDs rtIDs; |
| rtIDs.fStencilRenderbufferID = 0; |
| rtIDs.fMSColorRenderbufferID = 0; |
| rtIDs.fRTFBOID = 0; |
| rtIDs.fTexFBOID = 0; |
| rtIDs.fOwnIDs = true; |
| GrGLenum msColorRenderbufferFormat = -1; |
| |
| if (renderTarget) { |
| #if GR_COLLECT_STATS |
| ++fStats.fRenderTargetCreateCnt; |
| #endif |
| bool failed = true; |
| GrGLenum status; |
| GrGLint err; |
| |
| GR_GL(GenFramebuffers(1, &rtIDs.fTexFBOID)); |
| GrAssert(rtIDs.fTexFBOID); |
| |
| // If we are using multisampling and we will create two FBOS We render |
| // to one and then resolve to the texture bound to the other. |
| if (samples > 1 && kNone_MSFBO != fMSFBOType) { |
| GR_GL(GenFramebuffers(1, &rtIDs.fRTFBOID)); |
| GrAssert(0 != rtIDs.fRTFBOID); |
| GR_GL(GenRenderbuffers(1, &rtIDs.fMSColorRenderbufferID)); |
| GrAssert(0 != rtIDs.fMSColorRenderbufferID); |
| if (!fboInternalFormat(desc.fFormat, &msColorRenderbufferFormat)) { |
| GR_GL(DeleteRenderbuffers(1, &rtIDs.fMSColorRenderbufferID)); |
| GR_GL(DeleteTextures(1, &glDesc.fTextureID)); |
| GR_GL(DeleteFramebuffers(1, &rtIDs.fTexFBOID)); |
| GR_GL(DeleteFramebuffers(1, &rtIDs.fRTFBOID)); |
| return return_null_texture(); |
| } |
| } else { |
| rtIDs.fRTFBOID = rtIDs.fTexFBOID; |
| } |
| if (!(kNoStencil_GrTextureFlagBit & desc.fFlags)) { |
| GR_GL(GenRenderbuffers(1, &rtIDs.fStencilRenderbufferID)); |
| GrAssert(0 != rtIDs.fStencilRenderbufferID); |
| } |
| |
| // someone suggested that some systems might require |
| // unbinding the texture before we call FramebufferTexture2D |
| // (seems unlikely) |
| GR_GL(BindTexture(GR_GL_TEXTURE_2D, 0)); |
| |
| err = ~GR_GL_NO_ERROR; |
| |
| int stencilFmtCnt; |
| if (rtIDs.fStencilRenderbufferID) { |
| stencilFmtCnt = fStencilFormats.count(); |
| } else { |
| stencilFmtCnt = 1; // only 1 attempt when we don't need a stencil |
| } |
| |
| for (int i = 0; i < stencilFmtCnt; ++i) { |
| // we start with the last stencil format that succeeded in hopes |
| // that we won't go through this loop more than once after the |
| // first (painful) stencil creation. |
| int sIdx = (i + fLastSuccessfulStencilFmtIdx) % stencilFmtCnt; |
| |
| if (rtIDs.fStencilRenderbufferID) { |
| GR_GL(BindRenderbuffer(GR_GL_RENDERBUFFER, |
| rtIDs.fStencilRenderbufferID)); |
| if (samples > 1) { |
| GR_GL_NO_ERR(RenderbufferStorageMultisample( |
| GR_GL_RENDERBUFFER, |
| samples, |
| fStencilFormats[sIdx].fEnum, |
| glDesc.fAllocWidth, |
| glDesc.fAllocHeight)); |
| } else { |
| GR_GL_NO_ERR(RenderbufferStorage(GR_GL_RENDERBUFFER, |
| fStencilFormats[sIdx].fEnum, |
| glDesc.fAllocWidth, |
| glDesc.fAllocHeight)); |
| } |
| err = GrGLGetGLInterface()->fGetError(); |
| if (err != GR_GL_NO_ERROR) { |
| continue; |
| } |
| } |
| if (rtIDs.fRTFBOID != rtIDs.fTexFBOID) { |
| GrAssert(samples > 1); |
| GR_GL(BindRenderbuffer(GR_GL_RENDERBUFFER, |
| rtIDs.fMSColorRenderbufferID)); |
| GR_GL_NO_ERR(RenderbufferStorageMultisample( |
| GR_GL_RENDERBUFFER, |
| samples, |
| msColorRenderbufferFormat, |
| glDesc.fAllocWidth, |
| glDesc.fAllocHeight)); |
| err = GrGLGetGLInterface()->fGetError(); |
| if (err != GR_GL_NO_ERROR) { |
| continue; |
| } |
| } |
| GR_GL(BindFramebuffer(GR_GL_FRAMEBUFFER, rtIDs.fTexFBOID)); |
| |
| #if GR_COLLECT_STATS |
| ++fStats.fRenderTargetChngCnt; |
| #endif |
| GR_GL(FramebufferTexture2D(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_TEXTURE_2D, |
| glDesc.fTextureID, 0)); |
| if (rtIDs.fRTFBOID != rtIDs.fTexFBOID) { |
| GrGLenum status = GR_GL(CheckFramebufferStatus(GR_GL_FRAMEBUFFER)); |
| if (status != GR_GL_FRAMEBUFFER_COMPLETE) { |
| continue; |
| } |
| GR_GL(BindFramebuffer(GR_GL_FRAMEBUFFER, rtIDs.fRTFBOID)); |
| #if GR_COLLECT_STATS |
| ++fStats.fRenderTargetChngCnt; |
| #endif |
| GR_GL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_RENDERBUFFER, |
| rtIDs.fMSColorRenderbufferID)); |
| |
| } |
| if (rtIDs.fStencilRenderbufferID) { |
| // bind the stencil to rt fbo if present, othewise the tex fbo |
| GR_GL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_STENCIL_ATTACHMENT, |
| GR_GL_RENDERBUFFER, |
| rtIDs.fStencilRenderbufferID)); |
| // if it is a packed format bind to depth also, otherwise |
| // we may get an unsupported fbo completeness result |
| if (fStencilFormats[sIdx].fPacked) { |
| GR_GL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_DEPTH_ATTACHMENT, |
| GR_GL_RENDERBUFFER, |
| rtIDs.fStencilRenderbufferID)); |
| } |
| } |
| status = GR_GL(CheckFramebufferStatus(GR_GL_FRAMEBUFFER)); |
| |
| if (status != GR_GL_FRAMEBUFFER_COMPLETE) { |
| // undo the depth bind |
| if (rtIDs.fStencilRenderbufferID && |
| fStencilFormats[sIdx].fPacked) { |
| GR_GL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_DEPTH_ATTACHMENT, |
| GR_GL_RENDERBUFFER, |
| 0)); |
| } |
| continue; |
| } |
| // we're successful! |
| failed = false; |
| if (rtIDs.fStencilRenderbufferID) { |
| fLastSuccessfulStencilFmtIdx = sIdx; |
| if (gUNKNOWN_BITCOUNT == fStencilFormats[sIdx].fBits) { |
| GR_GL_GetIntegerv(GR_GL_STENCIL_BITS, (GrGLint*)&glDesc.fStencilBits); |
| } else { |
| glDesc.fStencilBits = fStencilFormats[sIdx].fBits; |
| } |
| } |
| break; |
| } |
| if (failed) { |
| if (rtIDs.fStencilRenderbufferID) { |
| GR_GL(DeleteRenderbuffers(1, &rtIDs.fStencilRenderbufferID)); |
| } |
| if (rtIDs.fMSColorRenderbufferID) { |
| GR_GL(DeleteRenderbuffers(1, &rtIDs.fMSColorRenderbufferID)); |
| } |
| if (rtIDs.fRTFBOID != rtIDs.fTexFBOID) { |
| GR_GL(DeleteFramebuffers(1, &rtIDs.fRTFBOID)); |
| } |
| if (rtIDs.fTexFBOID) { |
| GR_GL(DeleteFramebuffers(1, &rtIDs.fTexFBOID)); |
| } |
| GR_GL(DeleteTextures(1, &glDesc.fTextureID)); |
| return return_null_texture(); |
| } |
| } |
| #ifdef TRACE_TEXTURE_CREATION |
| GrPrintf("--- new texture [%d] size=(%d %d) bpp=%d\n", |
| tex->fTextureID, width, height, tex->fUploadByteCount); |
| #endif |
| GrGLTexture* tex = new GrGLTexture(this, glDesc, rtIDs, DEFAULT_PARAMS); |
| |
| if (0 != rtIDs.fTexFBOID) { |
| GrRenderTarget* rt = tex->asRenderTarget(); |
| // We've messed with FBO state but may not have set the correct viewport |
| // so just dirty the rendertarget state to force a resend. |
| fHWDrawState.fRenderTarget = NULL; |
| |
| // clear the new stencil buffer if we have one |
| if (!(desc.fFlags & kNoStencil_GrTextureFlagBit)) { |
| GrRenderTarget* rtSave = fCurrDrawState.fRenderTarget; |
| fCurrDrawState.fRenderTarget = rt; |
| this->clearStencil(0, ~0); |
| fCurrDrawState.fRenderTarget = rtSave; |
| } |
| } |
| return tex; |
| } |
| |
| GrVertexBuffer* GrGpuGL::onCreateVertexBuffer(uint32_t size, bool dynamic) { |
| GrGLuint id; |
| GR_GL(GenBuffers(1, &id)); |
| if (id) { |
| GR_GL(BindBuffer(GR_GL_ARRAY_BUFFER, id)); |
| fHWGeometryState.fArrayPtrsDirty = true; |
| GrGLClearErr(); |
| // make sure driver can allocate memory for this buffer |
| GR_GL_NO_ERR(BufferData(GR_GL_ARRAY_BUFFER, size, NULL, |
| dynamic ? GR_GL_DYNAMIC_DRAW : GR_GL_STATIC_DRAW)); |
| if (GrGLGetGLInterface()->fGetError() != GR_GL_NO_ERROR) { |
| GR_GL(DeleteBuffers(1, &id)); |
| // deleting bound buffer does implicit bind to 0 |
| fHWGeometryState.fVertexBuffer = NULL; |
| return NULL; |
| } |
| GrGLVertexBuffer* vertexBuffer = new GrGLVertexBuffer(this, id, |
| size, dynamic); |
| fHWGeometryState.fVertexBuffer = vertexBuffer; |
| return vertexBuffer; |
| } |
| return NULL; |
| } |
| |
| GrIndexBuffer* GrGpuGL::onCreateIndexBuffer(uint32_t size, bool dynamic) { |
| GrGLuint id; |
| GR_GL(GenBuffers(1, &id)); |
| if (id) { |
| GR_GL(BindBuffer(GR_GL_ELEMENT_ARRAY_BUFFER, id)); |
| GrGLClearErr(); |
| // make sure driver can allocate memory for this buffer |
| GR_GL_NO_ERR(BufferData(GR_GL_ELEMENT_ARRAY_BUFFER, size, NULL, |
| dynamic ? GR_GL_DYNAMIC_DRAW : GR_GL_STATIC_DRAW)); |
| if (GrGLGetGLInterface()->fGetError() != GR_GL_NO_ERROR) { |
| GR_GL(DeleteBuffers(1, &id)); |
| // deleting bound buffer does implicit bind to 0 |
| fHWGeometryState.fIndexBuffer = NULL; |
| return NULL; |
| } |
| GrIndexBuffer* indexBuffer = new GrGLIndexBuffer(this, id, |
| size, dynamic); |
| fHWGeometryState.fIndexBuffer = indexBuffer; |
| return indexBuffer; |
| } |
| return NULL; |
| } |
| |
| void GrGpuGL::flushScissor(const GrIRect* rect) { |
| GrAssert(NULL != fCurrDrawState.fRenderTarget); |
| const GrGLIRect& vp = |
| ((GrGLRenderTarget*)fCurrDrawState.fRenderTarget)->getViewport(); |
| |
| GrGLIRect scissor; |
| if (NULL != rect) { |
| scissor.setRelativeTo(vp, rect->fLeft, rect->fTop, |
| rect->width(), rect->height()); |
| if (scissor.contains(vp)) { |
| rect = NULL; |
| } |
| } |
| |
| if (NULL != rect) { |
| if (fHWBounds.fScissorRect != scissor) { |
| scissor.pushToGLScissor(); |
| fHWBounds.fScissorRect = scissor; |
| } |
| if (!fHWBounds.fScissorEnabled) { |
| GR_GL(Enable(GR_GL_SCISSOR_TEST)); |
| fHWBounds.fScissorEnabled = true; |
| } |
| } else { |
| if (fHWBounds.fScissorEnabled) { |
| GR_GL(Disable(GR_GL_SCISSOR_TEST)); |
| fHWBounds.fScissorEnabled = false; |
| } |
| } |
| } |
| |
| void GrGpuGL::onClear(const GrIRect* rect, GrColor color) { |
| if (NULL == fCurrDrawState.fRenderTarget) { |
| return; |
| } |
| GrIRect r; |
| if (NULL != rect) { |
| // flushScissor expects rect to be clipped to the target. |
| r = *rect; |
| GrIRect rtRect = SkIRect::MakeWH(fCurrDrawState.fRenderTarget->width(), |
| fCurrDrawState.fRenderTarget->height()); |
| if (r.intersect(rtRect)) { |
| rect = &r; |
| } else { |
| return; |
| } |
| } |
| this->flushRenderTarget(rect); |
| this->flushScissor(rect); |
| GR_GL(ColorMask(GR_GL_TRUE,GR_GL_TRUE,GR_GL_TRUE,GR_GL_TRUE)); |
| fHWDrawState.fFlagBits &= ~kNoColorWrites_StateBit; |
| GR_GL(ClearColor(GrColorUnpackR(color)/255.f, |
| GrColorUnpackG(color)/255.f, |
| GrColorUnpackB(color)/255.f, |
| GrColorUnpackA(color)/255.f)); |
| GR_GL(Clear(GR_GL_COLOR_BUFFER_BIT)); |
| } |
| |
| void GrGpuGL::clearStencil(uint32_t value, uint32_t mask) { |
| if (NULL == fCurrDrawState.fRenderTarget) { |
| return; |
| } |
| |
| this->flushRenderTarget(&GrIRect::EmptyIRect()); |
| |
| if (fHWBounds.fScissorEnabled) { |
| GR_GL(Disable(GR_GL_SCISSOR_TEST)); |
| fHWBounds.fScissorEnabled = false; |
| } |
| GR_GL(StencilMask(mask)); |
| GR_GL(ClearStencil(value)); |
| GR_GL(Clear(GR_GL_STENCIL_BUFFER_BIT)); |
| fHWDrawState.fStencilSettings.invalidate(); |
| } |
| |
| void GrGpuGL::clearStencilClip(const GrIRect& rect) { |
| GrAssert(NULL != fCurrDrawState.fRenderTarget); |
| #if 0 |
| GrGLint stencilBitCount = fCurrDrawState.fRenderTarget->stencilBits(); |
| GrAssert(stencilBitCount > 0); |
| GrGLint clipStencilMask = (1 << (stencilBitCount - 1)); |
| #else |
| // we could just clear the clip bit but when we go through |
| // angle a partial stencil mask will cause clears to be |
| // turned into draws. Our contract on GrDrawTarget says that |
| // changing the clip between stencil passes may or may not |
| // zero the client's clip bits. So we just clear the whole thing. |
| static const GrGLint clipStencilMask = ~0; |
| #endif |
| this->flushRenderTarget(&GrIRect::EmptyIRect()); |
| flushScissor(&rect); |
| GR_GL(StencilMask(clipStencilMask)); |
| GR_GL(ClearStencil(0)); |
| GR_GL(Clear(GR_GL_STENCIL_BUFFER_BIT)); |
| fHWDrawState.fStencilSettings.invalidate(); |
| } |
| |
| void GrGpuGL::onForceRenderTargetFlush() { |
| this->flushRenderTarget(&GrIRect::EmptyIRect()); |
| } |
| |
| bool GrGpuGL::onReadPixels(GrRenderTarget* target, |
| int left, int top, int width, int height, |
| GrPixelConfig config, void* buffer) { |
| GrGLenum internalFormat; // we don't use this for glReadPixels |
| GrGLenum format; |
| GrGLenum type; |
| if (!this->canBeTexture(config, &internalFormat, &format, &type)) { |
| return false; |
| } |
| GrGLRenderTarget* tgt = static_cast<GrGLRenderTarget*>(target); |
| GrAutoTPtrValueRestore<GrRenderTarget*> autoTargetRestore; |
| switch (tgt->getResolveType()) { |
| case GrGLRenderTarget::kCantResolve_ResolveType: |
| return false; |
| case GrGLRenderTarget::kAutoResolves_ResolveType: |
| autoTargetRestore.save(&fCurrDrawState.fRenderTarget); |
| fCurrDrawState.fRenderTarget = target; |
| this->flushRenderTarget(&GrIRect::EmptyIRect()); |
| break; |
| case GrGLRenderTarget::kCanResolve_ResolveType: |
| this->resolveRenderTarget(tgt); |
| // we don't track the state of the READ FBO ID. |
| GR_GL(BindFramebuffer(GR_GL_READ_FRAMEBUFFER, tgt->textureFBOID())); |
| break; |
| default: |
| GrCrash("Unknown resolve type"); |
| } |
| |
| const GrGLIRect& glvp = tgt->getViewport(); |
| |
| // the read rect is viewport-relative |
| GrGLIRect readRect; |
| readRect.setRelativeTo(glvp, left, top, width, height); |
| GR_GL(ReadPixels(readRect.fLeft, readRect.fBottom, |
| readRect.fWidth, readRect.fHeight, |
| format, type, buffer)); |
| |
| // now reverse the order of the rows, since GL's are bottom-to-top, but our |
| // API presents top-to-bottom |
| { |
| size_t stride = width * GrBytesPerPixel(config); |
| SkAutoMalloc rowStorage(stride); |
| void* tmp = rowStorage.get(); |
| |
| const int halfY = height >> 1; |
| char* top = reinterpret_cast<char*>(buffer); |
| char* bottom = top + (height - 1) * stride; |
| for (int y = 0; y < halfY; y++) { |
| memcpy(tmp, top, stride); |
| memcpy(top, bottom, stride); |
| memcpy(bottom, tmp, stride); |
| top += stride; |
| bottom -= stride; |
| } |
| } |
| return true; |
| } |
| |
| void GrGpuGL::flushRenderTarget(const GrIRect* bound) { |
| |
| GrAssert(NULL != fCurrDrawState.fRenderTarget); |
| |
| GrGLRenderTarget* rt = (GrGLRenderTarget*)fCurrDrawState.fRenderTarget; |
| if (fHWDrawState.fRenderTarget != fCurrDrawState.fRenderTarget) { |
| GR_GL(BindFramebuffer(GR_GL_FRAMEBUFFER, rt->renderFBOID())); |
| #if GR_COLLECT_STATS |
| ++fStats.fRenderTargetChngCnt; |
| #endif |
| #if GR_DEBUG |
| GrGLenum status = GR_GL(CheckFramebufferStatus(GR_GL_FRAMEBUFFER)); |
| if (status != GR_GL_FRAMEBUFFER_COMPLETE) { |
| GrPrintf("GrGpuGL::flushRenderTarget glCheckFramebufferStatus %x\n", status); |
| } |
| #endif |
| fDirtyFlags.fRenderTargetChanged = true; |
| fHWDrawState.fRenderTarget = fCurrDrawState.fRenderTarget; |
| const GrGLIRect& vp = rt->getViewport(); |
| if (fHWBounds.fViewportRect != vp) { |
| vp.pushToGLViewport(); |
| fHWBounds.fViewportRect = vp; |
| } |
| } |
| if (NULL == bound || !bound->isEmpty()) { |
| rt->flagAsNeedingResolve(bound); |
| } |
| } |
| |
| GrGLenum gPrimitiveType2GLMode[] = { |
| GR_GL_TRIANGLES, |
| GR_GL_TRIANGLE_STRIP, |
| GR_GL_TRIANGLE_FAN, |
| GR_GL_POINTS, |
| GR_GL_LINES, |
| GR_GL_LINE_STRIP |
| }; |
| |
| #define SWAP_PER_DRAW 0 |
| |
| #if SWAP_PER_DRAW |
| #if GR_MAC_BUILD |
| #include <AGL/agl.h> |
| #elif GR_WIN32_BUILD |
| void SwapBuf() { |
| DWORD procID = GetCurrentProcessId(); |
| HWND hwnd = GetTopWindow(GetDesktopWindow()); |
| while(hwnd) { |
| DWORD wndProcID = 0; |
| GetWindowThreadProcessId(hwnd, &wndProcID); |
| if(wndProcID == procID) { |
| SwapBuffers(GetDC(hwnd)); |
| } |
| hwnd = GetNextWindow(hwnd, GW_HWNDNEXT); |
| } |
| } |
| #endif |
| #endif |
| |
| void GrGpuGL::onGpuDrawIndexed(GrPrimitiveType type, |
| uint32_t startVertex, |
| uint32_t startIndex, |
| uint32_t vertexCount, |
| uint32_t indexCount) { |
| GrAssert((size_t)type < GR_ARRAY_COUNT(gPrimitiveType2GLMode)); |
| |
| GrGLvoid* indices = (GrGLvoid*)(sizeof(uint16_t) * startIndex); |
| |
| GrAssert(NULL != fHWGeometryState.fIndexBuffer); |
| GrAssert(NULL != fHWGeometryState.fVertexBuffer); |
| |
| // our setupGeometry better have adjusted this to zero since |
| // DrawElements always draws from the begining of the arrays for idx 0. |
| GrAssert(0 == startVertex); |
| |
| GR_GL(DrawElements(gPrimitiveType2GLMode[type], indexCount, |
| GR_GL_UNSIGNED_SHORT, indices)); |
| #if SWAP_PER_DRAW |
| glFlush(); |
| #if GR_MAC_BUILD |
| aglSwapBuffers(aglGetCurrentContext()); |
| int set_a_break_pt_here = 9; |
| aglSwapBuffers(aglGetCurrentContext()); |
| #elif GR_WIN32_BUILD |
| SwapBuf(); |
| int set_a_break_pt_here = 9; |
| SwapBuf(); |
| #endif |
| #endif |
| } |
| |
| void GrGpuGL::onGpuDrawNonIndexed(GrPrimitiveType type, |
| uint32_t startVertex, |
| uint32_t vertexCount) { |
| GrAssert((size_t)type < GR_ARRAY_COUNT(gPrimitiveType2GLMode)); |
| |
| GrAssert(NULL != fHWGeometryState.fVertexBuffer); |
| |
| // our setupGeometry better have adjusted this to zero. |
| // DrawElements doesn't take an offset so we always adjus the startVertex. |
| GrAssert(0 == startVertex); |
| |
| // pass 0 for parameter first. We have to adjust gl*Pointer() to |
| // account for startVertex in the DrawElements case. So we always |
| // rely on setupGeometry to have accounted for startVertex. |
| GR_GL(DrawArrays(gPrimitiveType2GLMode[type], 0, vertexCount)); |
| #if SWAP_PER_DRAW |
| glFlush(); |
| #if GR_MAC_BUILD |
| aglSwapBuffers(aglGetCurrentContext()); |
| int set_a_break_pt_here = 9; |
| aglSwapBuffers(aglGetCurrentContext()); |
| #elif GR_WIN32_BUILD |
| SwapBuf(); |
| int set_a_break_pt_here = 9; |
| SwapBuf(); |
| #endif |
| #endif |
| } |
| |
| void GrGpuGL::resolveRenderTarget(GrGLRenderTarget* rt) { |
| |
| if (rt->needsResolve()) { |
| GrAssert(kNone_MSFBO != fMSFBOType); |
| GrAssert(rt->textureFBOID() != rt->renderFBOID()); |
| GR_GL(BindFramebuffer(GR_GL_READ_FRAMEBUFFER, |
| rt->renderFBOID())); |
| GR_GL(BindFramebuffer(GR_GL_DRAW_FRAMEBUFFER, |
| rt->textureFBOID())); |
| #if GR_COLLECT_STATS |
| ++fStats.fRenderTargetChngCnt; |
| #endif |
| // make sure we go through flushRenderTarget() since we've modified |
| // the bound DRAW FBO ID. |
| fHWDrawState.fRenderTarget = NULL; |
| const GrGLIRect& vp = rt->getViewport(); |
| const GrIRect dirtyRect = rt->getResolveRect(); |
| GrGLIRect r; |
| r.setRelativeTo(vp, dirtyRect.fLeft, dirtyRect.fTop, |
| dirtyRect.width(), dirtyRect.height()); |
| |
| if (kAppleES_MSFBO == fMSFBOType) { |
| // Apple's extension uses the scissor as the blit bounds. |
| GR_GL(Enable(GR_GL_SCISSOR_TEST)); |
| GR_GL(Scissor(r.fLeft, r.fBottom, |
| r.fWidth, r.fHeight)); |
| GR_GL(ResolveMultisampleFramebuffer()); |
| fHWBounds.fScissorRect.invalidate(); |
| fHWBounds.fScissorEnabled = true; |
| } else { |
| if (kDesktopARB_MSFBO != fMSFBOType) { |
| // this respects the scissor during the blit, so disable it. |
| GrAssert(kDesktopEXT_MSFBO == fMSFBOType); |
| flushScissor(NULL); |
| } |
| int right = r.fLeft + r.fWidth; |
| int top = r.fBottom + r.fHeight; |
| GR_GL(BlitFramebuffer(r.fLeft, r.fBottom, right, top, |
| r.fLeft, r.fBottom, right, top, |
| GR_GL_COLOR_BUFFER_BIT, GR_GL_NEAREST)); |
| } |
| rt->flagAsResolved(); |
| } |
| } |
| |
| static const GrGLenum grToGLStencilFunc[] = { |
| GR_GL_ALWAYS, // kAlways_StencilFunc |
| GR_GL_NEVER, // kNever_StencilFunc |
| GR_GL_GREATER, // kGreater_StencilFunc |
| GR_GL_GEQUAL, // kGEqual_StencilFunc |
| GR_GL_LESS, // kLess_StencilFunc |
| GR_GL_LEQUAL, // kLEqual_StencilFunc, |
| GR_GL_EQUAL, // kEqual_StencilFunc, |
| GR_GL_NOTEQUAL, // kNotEqual_StencilFunc, |
| }; |
| GR_STATIC_ASSERT(GR_ARRAY_COUNT(grToGLStencilFunc) == kBasicStencilFuncCount); |
| GR_STATIC_ASSERT(0 == kAlways_StencilFunc); |
| GR_STATIC_ASSERT(1 == kNever_StencilFunc); |
| GR_STATIC_ASSERT(2 == kGreater_StencilFunc); |
| GR_STATIC_ASSERT(3 == kGEqual_StencilFunc); |
| GR_STATIC_ASSERT(4 == kLess_StencilFunc); |
| GR_STATIC_ASSERT(5 == kLEqual_StencilFunc); |
| GR_STATIC_ASSERT(6 == kEqual_StencilFunc); |
| GR_STATIC_ASSERT(7 == kNotEqual_StencilFunc); |
| |
| static const GrGLenum grToGLStencilOp[] = { |
| GR_GL_KEEP, // kKeep_StencilOp |
| GR_GL_REPLACE, // kReplace_StencilOp |
| GR_GL_INCR_WRAP, // kIncWrap_StencilOp |
| GR_GL_INCR, // kIncClamp_StencilOp |
| GR_GL_DECR_WRAP, // kDecWrap_StencilOp |
| GR_GL_DECR, // kDecClamp_StencilOp |
| GR_GL_ZERO, // kZero_StencilOp |
| GR_GL_INVERT, // kInvert_StencilOp |
| }; |
| GR_STATIC_ASSERT(GR_ARRAY_COUNT(grToGLStencilOp) == kStencilOpCount); |
| GR_STATIC_ASSERT(0 == kKeep_StencilOp); |
| GR_STATIC_ASSERT(1 == kReplace_StencilOp); |
| GR_STATIC_ASSERT(2 == kIncWrap_StencilOp); |
| GR_STATIC_ASSERT(3 == kIncClamp_StencilOp); |
| GR_STATIC_ASSERT(4 == kDecWrap_StencilOp); |
| GR_STATIC_ASSERT(5 == kDecClamp_StencilOp); |
| GR_STATIC_ASSERT(6 == kZero_StencilOp); |
| GR_STATIC_ASSERT(7 == kInvert_StencilOp); |
| |
| void GrGpuGL::flushStencil() { |
| const GrStencilSettings* settings = &fCurrDrawState.fStencilSettings; |
| |
| // use stencil for clipping if clipping is enabled and the clip |
| // has been written into the stencil. |
| bool stencilClip = fClipState.fClipInStencil && |
| (kClip_StateBit & fCurrDrawState.fFlagBits); |
| bool stencilChange = fHWStencilClip != stencilClip || |
| fHWDrawState.fStencilSettings != *settings || |
| ((fHWDrawState.fFlagBits & kModifyStencilClip_StateBit) != |
| (fCurrDrawState.fFlagBits & kModifyStencilClip_StateBit)); |
| |
| if (stencilChange) { |
| |
| // we can't simultaneously perform stencil-clipping and modify the stencil clip |
| GrAssert(!stencilClip || !(fCurrDrawState.fFlagBits & kModifyStencilClip_StateBit)); |
| |
| if (settings->isDisabled()) { |
| if (stencilClip) { |
| settings = &gClipStencilSettings; |
| } |
| } |
| |
| if (settings->isDisabled()) { |
| GR_GL(Disable(GR_GL_STENCIL_TEST)); |
| } else { |
| GR_GL(Enable(GR_GL_STENCIL_TEST)); |
| #if GR_DEBUG |
| if (!fStencilWrapOpsSupport) { |
| GrAssert(settings->fFrontPassOp != kIncWrap_StencilOp); |
| GrAssert(settings->fFrontPassOp != kDecWrap_StencilOp); |
| GrAssert(settings->fFrontFailOp != kIncWrap_StencilOp); |
| GrAssert(settings->fBackFailOp != kDecWrap_StencilOp); |
| GrAssert(settings->fBackPassOp != kIncWrap_StencilOp); |
| GrAssert(settings->fBackPassOp != kDecWrap_StencilOp); |
| GrAssert(settings->fBackFailOp != kIncWrap_StencilOp); |
| GrAssert(settings->fFrontFailOp != kDecWrap_StencilOp); |
| } |
| #endif |
| int stencilBits = fCurrDrawState.fRenderTarget->stencilBits(); |
| GrAssert(stencilBits || |
| (GrStencilSettings::gDisabled == |
| fCurrDrawState.fStencilSettings)); |
| GrGLuint clipStencilMask = 1 << (stencilBits - 1); |
| GrGLuint userStencilMask = clipStencilMask - 1; |
| |
| unsigned int frontRef = settings->fFrontFuncRef; |
| unsigned int frontMask = settings->fFrontFuncMask; |
| unsigned int frontWriteMask = settings->fFrontWriteMask; |
| GrGLenum frontFunc; |
| |
| if (fCurrDrawState.fFlagBits & kModifyStencilClip_StateBit) { |
| |
| GrAssert(settings->fFrontFunc < kBasicStencilFuncCount); |
| frontFunc = grToGLStencilFunc[settings->fFrontFunc]; |
| } else { |
| frontFunc = grToGLStencilFunc[ConvertStencilFunc(stencilClip, settings->fFrontFunc)]; |
| |
| ConvertStencilFuncAndMask(settings->fFrontFunc, |
| stencilClip, |
| clipStencilMask, |
| userStencilMask, |
| &frontRef, |
| &frontMask); |
| frontWriteMask &= userStencilMask; |
| } |
| GrAssert(settings->fFrontFailOp >= 0 && |
| (unsigned) settings->fFrontFailOp < GR_ARRAY_COUNT(grToGLStencilOp)); |
| GrAssert(settings->fFrontPassOp >= 0 && |
| (unsigned) settings->fFrontPassOp < GR_ARRAY_COUNT(grToGLStencilOp)); |
| GrAssert(settings->fBackFailOp >= 0 && |
| (unsigned) settings->fBackFailOp < GR_ARRAY_COUNT(grToGLStencilOp)); |
| GrAssert(settings->fBackPassOp >= 0 && |
| (unsigned) settings->fBackPassOp < GR_ARRAY_COUNT(grToGLStencilOp)); |
| if (fTwoSidedStencilSupport) { |
| GrGLenum backFunc; |
| |
| unsigned int backRef = settings->fBackFuncRef; |
| unsigned int backMask = settings->fBackFuncMask; |
| unsigned int backWriteMask = settings->fBackWriteMask; |
| |
| |
| if (fCurrDrawState.fFlagBits & kModifyStencilClip_StateBit) { |
| GrAssert(settings->fBackFunc < kBasicStencilFuncCount); |
| backFunc = grToGLStencilFunc[settings->fBackFunc]; |
| } else { |
| backFunc = grToGLStencilFunc[ConvertStencilFunc(stencilClip, settings->fBackFunc)]; |
| ConvertStencilFuncAndMask(settings->fBackFunc, |
| stencilClip, |
| clipStencilMask, |
| userStencilMask, |
| &backRef, |
| &backMask); |
| backWriteMask &= userStencilMask; |
| } |
| |
| GR_GL(StencilFuncSeparate(GR_GL_FRONT, frontFunc, frontRef, frontMask)); |
| GR_GL(StencilMaskSeparate(GR_GL_FRONT, frontWriteMask)); |
| GR_GL(StencilFuncSeparate(GR_GL_BACK, backFunc, backRef, backMask)); |
| GR_GL(StencilMaskSeparate(GR_GL_BACK, backWriteMask)); |
| GR_GL(StencilOpSeparate(GR_GL_FRONT, grToGLStencilOp[settings->fFrontFailOp], |
| grToGLStencilOp[settings->fFrontPassOp], |
| grToGLStencilOp[settings->fFrontPassOp])); |
| |
| GR_GL(StencilOpSeparate(GR_GL_BACK, grToGLStencilOp[settings->fBackFailOp], |
| grToGLStencilOp[settings->fBackPassOp], |
| grToGLStencilOp[settings->fBackPassOp])); |
| } else { |
| GR_GL(StencilFunc(frontFunc, frontRef, frontMask)); |
| GR_GL(StencilMask(frontWriteMask)); |
| GR_GL(StencilOp(grToGLStencilOp[settings->fFrontFailOp], |
| grToGLStencilOp[settings->fFrontPassOp], |
| grToGLStencilOp[settings->fFrontPassOp])); |
| } |
| } |
| fHWDrawState.fStencilSettings = fCurrDrawState.fStencilSettings; |
| fHWStencilClip = stencilClip; |
| } |
| } |
| |
| bool GrGpuGL::useSmoothLines() { |
| // there is a conflict between using smooth lines and our use of |
| // premultiplied alpha. Smooth lines tweak the incoming alpha value |
| // but not in a premul-alpha way. So we only use them when our alpha |
| // is 0xff. |
| |
| // TODO: write a smarter line frag shader. |
| |
| return (kAntialias_StateBit & fCurrDrawState.fFlagBits) && |
| canDisableBlend(); |
| } |
| |
| void GrGpuGL::flushAAState(GrPrimitiveType type) { |
| if (GR_GL_SUPPORT_DESKTOP) { |
| // ES doesn't support toggling GL_MULTISAMPLE and doesn't have |
| // smooth lines. |
| |
| // we prefer smooth lines over multisampled lines |
| // msaa should be disabled if drawing smooth lines. |
| if (GrIsPrimTypeLines(type)) { |
| bool smooth = useSmoothLines(); |
| if (!fHWAAState.fSmoothLineEnabled && smooth) { |
| GR_GL(Enable(GR_GL_LINE_SMOOTH)); |
| fHWAAState.fSmoothLineEnabled = true; |
| } else if (fHWAAState.fSmoothLineEnabled && !smooth) { |
| GR_GL(Disable(GR_GL_LINE_SMOOTH)); |
| fHWAAState.fSmoothLineEnabled = false; |
| } |
| if (fCurrDrawState.fRenderTarget->isMultisampled() && |
| fHWAAState.fMSAAEnabled) { |
| GR_GL(Disable(GR_GL_MULTISAMPLE)); |
| fHWAAState.fMSAAEnabled = false; |
| } |
| } else if (fCurrDrawState.fRenderTarget->isMultisampled() && |
| !!(kAntialias_StateBit & fCurrDrawState.fFlagBits) != |
| fHWAAState.fMSAAEnabled) { |
| if (fHWAAState.fMSAAEnabled) { |
| GR_GL(Disable(GR_GL_MULTISAMPLE)); |
| fHWAAState.fMSAAEnabled = false; |
| } else { |
| GR_GL(Enable(GR_GL_MULTISAMPLE)); |
| fHWAAState.fMSAAEnabled = true; |
| } |
| } |
| } |
| } |
| |
| void GrGpuGL::flushBlend(GrPrimitiveType type, |
| GrBlendCoeff srcCoeff, |
| GrBlendCoeff dstCoeff) { |
| if (GrIsPrimTypeLines(type) && useSmoothLines()) { |
| if (fHWBlendDisabled) { |
| GR_GL(Enable(GR_GL_BLEND)); |
| fHWBlendDisabled = false; |
| } |
| if (kSA_BlendCoeff != fHWDrawState.fSrcBlend || |
| kISA_BlendCoeff != fHWDrawState.fDstBlend) { |
| GR_GL(BlendFunc(gXfermodeCoeff2Blend[kSA_BlendCoeff], |
| gXfermodeCoeff2Blend[kISA_BlendCoeff])); |
| fHWDrawState.fSrcBlend = kSA_BlendCoeff; |
| fHWDrawState.fDstBlend = kISA_BlendCoeff; |
| } |
| } else { |
| bool blendOff = canDisableBlend(); |
| if (fHWBlendDisabled != blendOff) { |
| if (blendOff) { |
| GR_GL(Disable(GR_GL_BLEND)); |
| } else { |
| GR_GL(Enable(GR_GL_BLEND)); |
| } |
| fHWBlendDisabled = blendOff; |
| } |
| if (!blendOff) { |
| if (fHWDrawState.fSrcBlend != srcCoeff || |
| fHWDrawState.fDstBlend != dstCoeff) { |
| GR_GL(BlendFunc(gXfermodeCoeff2Blend[srcCoeff], |
| gXfermodeCoeff2Blend[dstCoeff])); |
| fHWDrawState.fSrcBlend = srcCoeff; |
| fHWDrawState.fDstBlend = dstCoeff; |
| } |
| if ((BlendCoeffReferencesConstant(srcCoeff) || |
| BlendCoeffReferencesConstant(dstCoeff)) && |
| fHWDrawState.fBlendConstant != fCurrDrawState.fBlendConstant) { |
| |
| float c[] = { |
| GrColorUnpackR(fCurrDrawState.fBlendConstant) / 255.f, |
| GrColorUnpackG(fCurrDrawState.fBlendConstant) / 255.f, |
| GrColorUnpackB(fCurrDrawState.fBlendConstant) / 255.f, |
| GrColorUnpackA(fCurrDrawState.fBlendConstant) / 255.f |
| }; |
| GR_GL(BlendColor(c[0], c[1], c[2], c[3])); |
| fHWDrawState.fBlendConstant = fCurrDrawState.fBlendConstant; |
| } |
| } |
| } |
| } |
| |
| static unsigned grToGLFilter(GrSamplerState::Filter filter) { |
| switch (filter) { |
| case GrSamplerState::kBilinear_Filter: |
| case GrSamplerState::k4x4Downsample_Filter: |
| return GR_GL_LINEAR; |
| case GrSamplerState::kNearest_Filter: |
| case GrSamplerState::kConvolution_Filter: |
| return GR_GL_NEAREST; |
| default: |
| GrAssert(!"Unknown filter type"); |
| return GR_GL_LINEAR; |
| } |
| } |
| |
| bool GrGpuGL::flushGLStateCommon(GrPrimitiveType type) { |
| |
| // GrGpu::setupClipAndFlushState should have already checked this |
| // and bailed if not true. |
| GrAssert(NULL != fCurrDrawState.fRenderTarget); |
| |
| for (int s = 0; s < kNumStages; ++s) { |
| // bind texture and set sampler state |
| if (this->isStageEnabled(s)) { |
| GrGLTexture* nextTexture = (GrGLTexture*)fCurrDrawState.fTextures[s]; |
| |
| // true for now, but maybe not with GrEffect. |
| GrAssert(NULL != nextTexture); |
| // if we created a rt/tex and rendered to it without using a |
| // texture and now we're texuring from the rt it will still be |
| // the last bound texture, but it needs resolving. So keep this |
| // out of the "last != next" check. |
| GrGLRenderTarget* texRT = |
| static_cast<GrGLRenderTarget*>(nextTexture->asRenderTarget()); |
| if (NULL != texRT) { |
| resolveRenderTarget(texRT); |
| } |
| |
| if (fHWDrawState.fTextures[s] != nextTexture) { |
| setTextureUnit(s); |
| GR_GL(BindTexture(GR_GL_TEXTURE_2D, nextTexture->textureID())); |
| #if GR_COLLECT_STATS |
| ++fStats.fTextureChngCnt; |
| #endif |
| //GrPrintf("---- bindtexture %d\n", nextTexture->textureID()); |
| fHWDrawState.fTextures[s] = nextTexture; |
| // The texture matrix has to compensate for texture width/height |
| // and NPOT-embedded-in-POT |
| fDirtyFlags.fTextureChangedMask |= (1 << s); |
| } |
| |
| const GrSamplerState& sampler = fCurrDrawState.fSamplerStates[s]; |
| const GrGLTexture::TexParams& oldTexParams = |
| nextTexture->getTexParams(); |
| GrGLTexture::TexParams newTexParams; |
| |
| newTexParams.fFilter = grToGLFilter(sampler.getFilter()); |
| |
| newTexParams.fWrapS = |
| GrGLTexture::WrapMode2GLWrap()[sampler.getWrapX()]; |
| newTexParams.fWrapT = |
| GrGLTexture::WrapMode2GLWrap()[sampler.getWrapY()]; |
| |
| if (newTexParams.fFilter != oldTexParams.fFilter) { |
| setTextureUnit(s); |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_MAG_FILTER, |
| newTexParams.fFilter)); |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_MIN_FILTER, |
| newTexParams.fFilter)); |
| } |
| if (newTexParams.fWrapS != oldTexParams.fWrapS) { |
| setTextureUnit(s); |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_WRAP_S, |
| newTexParams.fWrapS)); |
| } |
| if (newTexParams.fWrapT != oldTexParams.fWrapT) { |
| setTextureUnit(s); |
| GR_GL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_WRAP_T, |
| newTexParams.fWrapT)); |
| } |
| nextTexture->setTexParams(newTexParams); |
| } |
| } |
| |
| GrIRect* rect = NULL; |
| GrIRect clipBounds; |
| if ((fCurrDrawState.fFlagBits & kClip_StateBit) && |
| fClip.hasConservativeBounds()) { |
| fClip.getConservativeBounds().roundOut(&clipBounds); |
| rect = &clipBounds; |
| } |
| this->flushRenderTarget(rect); |
| this->flushAAState(type); |
| |
| if ((fCurrDrawState.fFlagBits & kDither_StateBit) != |
| (fHWDrawState.fFlagBits & kDither_StateBit)) { |
| if (fCurrDrawState.fFlagBits & kDither_StateBit) { |
| GR_GL(Enable(GR_GL_DITHER)); |
| } else { |
| GR_GL(Disable(GR_GL_DITHER)); |
| } |
| } |
| |
| if ((fCurrDrawState.fFlagBits & kNoColorWrites_StateBit) != |
| (fHWDrawState.fFlagBits & kNoColorWrites_StateBit)) { |
| GrGLenum mask; |
| if (fCurrDrawState.fFlagBits & kNoColorWrites_StateBit) { |
| mask = GR_GL_FALSE; |
| } else { |
| mask = GR_GL_TRUE; |
| } |
| GR_GL(ColorMask(mask, mask, mask, mask)); |
| } |
| |
| if (fHWDrawState.fDrawFace != fCurrDrawState.fDrawFace) { |
| switch (fCurrDrawState.fDrawFace) { |
| case kCCW_DrawFace: |
| GR_GL(Enable(GR_GL_CULL_FACE)); |
| GR_GL(CullFace(GR_GL_BACK)); |
| break; |
| case kCW_DrawFace: |
| GR_GL(Enable(GR_GL_CULL_FACE)); |
| GR_GL(CullFace(GR_GL_FRONT)); |
| break; |
| case kBoth_DrawFace: |
| GR_GL(Disable(GR_GL_CULL_FACE)); |
| break; |
| default: |
| GrCrash("Unknown draw face."); |
| } |
| fHWDrawState.fDrawFace = fCurrDrawState.fDrawFace; |
| } |
| |
| #if GR_DEBUG |
| // check for circular rendering |
| for (int s = 0; s < kNumStages; ++s) { |
| GrAssert(!this->isStageEnabled(s) || |
| NULL == fCurrDrawState.fRenderTarget || |
| NULL == fCurrDrawState.fTextures[s] || |
| fCurrDrawState.fTextures[s]->asRenderTarget() != |
| fCurrDrawState.fRenderTarget); |
| } |
| #endif |
| |
| flushStencil(); |
| |
| // flushStencil may look at the private state bits, so keep it before this. |
| fHWDrawState.fFlagBits = fCurrDrawState.fFlagBits; |
| return true; |
| } |
| |
| void GrGpuGL::notifyVertexBufferBind(const GrGLVertexBuffer* buffer) { |
| if (fHWGeometryState.fVertexBuffer != buffer) { |
| fHWGeometryState.fArrayPtrsDirty = true; |
| fHWGeometryState.fVertexBuffer = buffer; |
| } |
| } |
| |
| void GrGpuGL::notifyVertexBufferDelete(const GrGLVertexBuffer* buffer) { |
| if (fHWGeometryState.fVertexBuffer == buffer) { |
| // deleting bound buffer does implied bind to 0 |
| fHWGeometryState.fVertexBuffer = NULL; |
| fHWGeometryState.fArrayPtrsDirty = true; |
| } |
| } |
| |
| void GrGpuGL::notifyIndexBufferBind(const GrGLIndexBuffer* buffer) { |
| fHWGeometryState.fIndexBuffer = buffer; |
| } |
| |
| void GrGpuGL::notifyIndexBufferDelete(const GrGLIndexBuffer* buffer) { |
| if (fHWGeometryState.fIndexBuffer == buffer) { |
| // deleting bound buffer does implied bind to 0 |
| fHWGeometryState.fIndexBuffer = NULL; |
| } |
| } |
| |
| void GrGpuGL::notifyRenderTargetDelete(GrRenderTarget* renderTarget) { |
| GrAssert(NULL != renderTarget); |
| if (fCurrDrawState.fRenderTarget == renderTarget) { |
| fCurrDrawState.fRenderTarget = NULL; |
| } |
| if (fHWDrawState.fRenderTarget == renderTarget) { |
| fHWDrawState.fRenderTarget = NULL; |
| } |
| } |
| |
| void GrGpuGL::notifyTextureDelete(GrGLTexture* texture) { |
| for (int s = 0; s < kNumStages; ++s) { |
| if (fCurrDrawState.fTextures[s] == texture) { |
| fCurrDrawState.fTextures[s] = NULL; |
| } |
| if (fHWDrawState.fTextures[s] == texture) { |
| // deleting bound texture does implied bind to 0 |
| fHWDrawState.fTextures[s] = NULL; |
| } |
| } |
| } |
| |
| bool GrGpuGL::canBeTexture(GrPixelConfig config, |
| GrGLenum* internalFormat, |
| GrGLenum* format, |
| GrGLenum* type) { |
| switch (config) { |
| case kRGBA_8888_GrPixelConfig: |
| case kRGBX_8888_GrPixelConfig: // todo: can we tell it our X? |
| *format = GR_GL_32BPP_COLOR_FORMAT; |
| if (GR_GL_SUPPORT_ES) { |
| // according to GL_EXT_texture_format_BGRA8888 the *internal* |
| // format for a BGRA is BGRA not RGBA (as on desktop) |
| *internalFormat = GR_GL_32BPP_COLOR_FORMAT; |
| } else { |
| *internalFormat = GR_GL_RGBA; |
| } |
| *type = GR_GL_UNSIGNED_BYTE; |
| break; |
| case kRGB_565_GrPixelConfig: |
| *format = GR_GL_RGB; |
| *internalFormat = GR_GL_RGB; |
| *type = GR_GL_UNSIGNED_SHORT_5_6_5; |
| break; |
| case kRGBA_4444_GrPixelConfig: |
| *format = GR_GL_RGBA; |
| *internalFormat = GR_GL_RGBA; |
| *type = GR_GL_UNSIGNED_SHORT_4_4_4_4; |
| break; |
| case kIndex_8_GrPixelConfig: |
| if (this->supports8BitPalette()) { |
| *format = GR_GL_PALETTE8_RGBA8; |
| *internalFormat = GR_GL_PALETTE8_RGBA8; |
| *type = GR_GL_UNSIGNED_BYTE; // unused I think |
| } else { |
| return false; |
| } |
| break; |
| case kAlpha_8_GrPixelConfig: |
| *format = GR_GL_ALPHA; |
| *internalFormat = GR_GL_ALPHA; |
| *type = GR_GL_UNSIGNED_BYTE; |
| break; |
| default: |
| return false; |
| } |
| return true; |
| } |
| |
| void GrGpuGL::setTextureUnit(int unit) { |
| GrAssert(unit >= 0 && unit < kNumStages); |
| if (fActiveTextureUnitIdx != unit) { |
| GR_GL(ActiveTexture(GR_GL_TEXTURE0 + unit)); |
| fActiveTextureUnitIdx = unit; |
| } |
| } |
| |
| void GrGpuGL::setSpareTextureUnit() { |
| if (fActiveTextureUnitIdx != (GR_GL_TEXTURE0 + SPARE_TEX_UNIT)) { |
| GR_GL(ActiveTexture(GR_GL_TEXTURE0 + SPARE_TEX_UNIT)); |
| fActiveTextureUnitIdx = SPARE_TEX_UNIT; |
| } |
| } |
| |
| /* On ES the internalFormat and format must match for TexImage and we use |
| GL_RGB, GL_RGBA for color formats. We also generally like having the driver |
| decide the internalFormat. However, on ES internalFormat for |
| RenderBufferStorage* has to be a specific format (not a base format like |
| GL_RGBA). |
| */ |
| bool GrGpuGL::fboInternalFormat(GrPixelConfig config, GrGLenum* format) { |
| switch (config) { |
| case kRGBA_8888_GrPixelConfig: |
| case kRGBX_8888_GrPixelConfig: |
| if (fRGBA8Renderbuffer) { |
| *format = GR_GL_RGBA8; |
| return true; |
| } else { |
| return false; |
| } |
| case kRGB_565_GrPixelConfig: |
| GrAssert(GR_GL_SUPPORT_ES); // ES2 supports 565. ES1 supports it |
| // with FBO extension desktop GL has |
| // no such internal format |
| *format = GR_GL_RGB565; |
| return true; |
| case kRGBA_4444_GrPixelConfig: |
| *format = GR_GL_RGBA4; |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| void GrGpuGL::resetDirtyFlags() { |
| Gr_bzero(&fDirtyFlags, sizeof(fDirtyFlags)); |
| } |
| |
| void GrGpuGL::setBuffers(bool indexed, |
| int* extraVertexOffset, |
| int* extraIndexOffset) { |
| |
| GrAssert(NULL != extraVertexOffset); |
| |
| const GeometryPoolState& geoPoolState = this->getGeomPoolState(); |
| |
| GrGLVertexBuffer* vbuf; |
| switch (this->getGeomSrc().fVertexSrc) { |
| case kBuffer_GeometrySrcType: |
| *extraVertexOffset = 0; |
| vbuf = (GrGLVertexBuffer*) this->getGeomSrc().fVertexBuffer; |
| break; |
| case kArray_GeometrySrcType: |
| case kReserved_GeometrySrcType: |
| this->finalizeReservedVertices(); |
| *extraVertexOffset = geoPoolState.fPoolStartVertex; |
| vbuf = (GrGLVertexBuffer*) geoPoolState.fPoolVertexBuffer; |
| break; |
| default: |
| vbuf = NULL; // suppress warning |
| GrCrash("Unknown geometry src type!"); |
| } |
| |
| GrAssert(NULL != vbuf); |
| GrAssert(!vbuf->isLocked()); |
| if (fHWGeometryState.fVertexBuffer != vbuf) { |
| GR_GL(BindBuffer(GR_GL_ARRAY_BUFFER, vbuf->bufferID())); |
| fHWGeometryState.fArrayPtrsDirty = true; |
| fHWGeometryState.fVertexBuffer = vbuf; |
| } |
| |
| if (indexed) { |
| GrAssert(NULL != extraIndexOffset); |
| |
| GrGLIndexBuffer* ibuf; |
| switch (this->getGeomSrc().fIndexSrc) { |
| case kBuffer_GeometrySrcType: |
| *extraIndexOffset = 0; |
| ibuf = (GrGLIndexBuffer*)this->getGeomSrc().fIndexBuffer; |
| break; |
| case kArray_GeometrySrcType: |
| case kReserved_GeometrySrcType: |
| this->finalizeReservedIndices(); |
| *extraIndexOffset = geoPoolState.fPoolStartIndex; |
| ibuf = (GrGLIndexBuffer*) geoPoolState.fPoolIndexBuffer; |
| break; |
| default: |
| ibuf = NULL; // suppress warning |
| GrCrash("Unknown geometry src type!"); |
| } |
| |
| GrAssert(NULL != ibuf); |
| GrAssert(!ibuf->isLocked()); |
| if (fHWGeometryState.fIndexBuffer != ibuf) { |
| GR_GL(BindBuffer(GR_GL_ELEMENT_ARRAY_BUFFER, ibuf->bufferID())); |
| fHWGeometryState.fIndexBuffer = ibuf; |
| } |
| } |
| } |
| |
| int GrGpuGL::getMaxEdges() const { |
| // FIXME: This is a pessimistic estimate based on how many other things |
| // want to add uniforms. This should be centralized somewhere. |
| return GR_CT_MIN(fMaxFragmentUniformVectors - 8, kMaxEdges); |
| } |
| |