| /* |
| * 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 "GrGLGpu.h" |
| #include "GrGLGLSL.h" |
| #include "GrGLStencilAttachment.h" |
| #include "GrGLTextureRenderTarget.h" |
| #include "GrGpuResourcePriv.h" |
| #include "GrPipeline.h" |
| #include "GrPLSGeometryProcessor.h" |
| #include "GrRenderTargetPriv.h" |
| #include "GrSurfacePriv.h" |
| #include "GrTexturePriv.h" |
| #include "GrTypes.h" |
| #include "GrVertices.h" |
| #include "builders/GrGLShaderStringBuilder.h" |
| #include "glsl/GrGLSL.h" |
| #include "glsl/GrGLSLCaps.h" |
| #include "glsl/GrGLSLPLSPathRendering.h" |
| #include "SkStrokeRec.h" |
| #include "SkTemplates.h" |
| |
| #define GL_CALL(X) GR_GL_CALL(this->glInterface(), X) |
| #define GL_CALL_RET(RET, X) GR_GL_CALL_RET(this->glInterface(), RET, X) |
| |
| #define SKIP_CACHE_CHECK true |
| |
| #if GR_GL_CHECK_ALLOC_WITH_GET_ERROR |
| #define CLEAR_ERROR_BEFORE_ALLOC(iface) GrGLClearErr(iface) |
| #define GL_ALLOC_CALL(iface, call) GR_GL_CALL_NOERRCHECK(iface, call) |
| #define CHECK_ALLOC_ERROR(iface) GR_GL_GET_ERROR(iface) |
| #else |
| #define CLEAR_ERROR_BEFORE_ALLOC(iface) |
| #define GL_ALLOC_CALL(iface, call) GR_GL_CALL(iface, call) |
| #define CHECK_ALLOC_ERROR(iface) GR_GL_NO_ERROR |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| |
| static const GrGLenum gXfermodeEquation2Blend[] = { |
| // Basic OpenGL blend equations. |
| GR_GL_FUNC_ADD, |
| GR_GL_FUNC_SUBTRACT, |
| GR_GL_FUNC_REVERSE_SUBTRACT, |
| |
| // GL_KHR_blend_equation_advanced. |
| GR_GL_SCREEN, |
| GR_GL_OVERLAY, |
| GR_GL_DARKEN, |
| GR_GL_LIGHTEN, |
| GR_GL_COLORDODGE, |
| GR_GL_COLORBURN, |
| GR_GL_HARDLIGHT, |
| GR_GL_SOFTLIGHT, |
| GR_GL_DIFFERENCE, |
| GR_GL_EXCLUSION, |
| GR_GL_MULTIPLY, |
| GR_GL_HSL_HUE, |
| GR_GL_HSL_SATURATION, |
| GR_GL_HSL_COLOR, |
| GR_GL_HSL_LUMINOSITY |
| }; |
| GR_STATIC_ASSERT(0 == kAdd_GrBlendEquation); |
| GR_STATIC_ASSERT(1 == kSubtract_GrBlendEquation); |
| GR_STATIC_ASSERT(2 == kReverseSubtract_GrBlendEquation); |
| GR_STATIC_ASSERT(3 == kScreen_GrBlendEquation); |
| GR_STATIC_ASSERT(4 == kOverlay_GrBlendEquation); |
| GR_STATIC_ASSERT(5 == kDarken_GrBlendEquation); |
| GR_STATIC_ASSERT(6 == kLighten_GrBlendEquation); |
| GR_STATIC_ASSERT(7 == kColorDodge_GrBlendEquation); |
| GR_STATIC_ASSERT(8 == kColorBurn_GrBlendEquation); |
| GR_STATIC_ASSERT(9 == kHardLight_GrBlendEquation); |
| GR_STATIC_ASSERT(10 == kSoftLight_GrBlendEquation); |
| GR_STATIC_ASSERT(11 == kDifference_GrBlendEquation); |
| GR_STATIC_ASSERT(12 == kExclusion_GrBlendEquation); |
| GR_STATIC_ASSERT(13 == kMultiply_GrBlendEquation); |
| GR_STATIC_ASSERT(14 == kHSLHue_GrBlendEquation); |
| GR_STATIC_ASSERT(15 == kHSLSaturation_GrBlendEquation); |
| GR_STATIC_ASSERT(16 == kHSLColor_GrBlendEquation); |
| GR_STATIC_ASSERT(17 == kHSLLuminosity_GrBlendEquation); |
| GR_STATIC_ASSERT(SK_ARRAY_COUNT(gXfermodeEquation2Blend) == kGrBlendEquationCnt); |
| |
| 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 GrGLGpu::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(kGrBlendCoeffCnt == SK_ARRAY_COUNT(gCoeffReferencesBlendConst)); |
| |
| GR_STATIC_ASSERT(0 == kZero_GrBlendCoeff); |
| GR_STATIC_ASSERT(1 == kOne_GrBlendCoeff); |
| GR_STATIC_ASSERT(2 == kSC_GrBlendCoeff); |
| GR_STATIC_ASSERT(3 == kISC_GrBlendCoeff); |
| GR_STATIC_ASSERT(4 == kDC_GrBlendCoeff); |
| GR_STATIC_ASSERT(5 == kIDC_GrBlendCoeff); |
| GR_STATIC_ASSERT(6 == kSA_GrBlendCoeff); |
| GR_STATIC_ASSERT(7 == kISA_GrBlendCoeff); |
| GR_STATIC_ASSERT(8 == kDA_GrBlendCoeff); |
| GR_STATIC_ASSERT(9 == kIDA_GrBlendCoeff); |
| GR_STATIC_ASSERT(10 == kConstC_GrBlendCoeff); |
| GR_STATIC_ASSERT(11 == kIConstC_GrBlendCoeff); |
| GR_STATIC_ASSERT(12 == kConstA_GrBlendCoeff); |
| GR_STATIC_ASSERT(13 == kIConstA_GrBlendCoeff); |
| |
| GR_STATIC_ASSERT(14 == kS2C_GrBlendCoeff); |
| GR_STATIC_ASSERT(15 == kIS2C_GrBlendCoeff); |
| GR_STATIC_ASSERT(16 == kS2A_GrBlendCoeff); |
| GR_STATIC_ASSERT(17 == kIS2A_GrBlendCoeff); |
| |
| // assertion for gXfermodeCoeff2Blend have to be in GrGpu scope |
| GR_STATIC_ASSERT(kGrBlendCoeffCnt == SK_ARRAY_COUNT(gXfermodeCoeff2Blend)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| |
| GrGpu* GrGLGpu::Create(GrBackendContext backendContext, const GrContextOptions& options, |
| GrContext* context) { |
| SkAutoTUnref<const GrGLInterface> glInterface( |
| reinterpret_cast<const GrGLInterface*>(backendContext)); |
| if (!glInterface) { |
| glInterface.reset(GrGLDefaultInterface()); |
| } else { |
| glInterface->ref(); |
| } |
| if (!glInterface) { |
| return nullptr; |
| } |
| GrGLContext* glContext = GrGLContext::Create(glInterface, options); |
| if (glContext) { |
| return new GrGLGpu(glContext, context); |
| } |
| return nullptr; |
| } |
| |
| static bool gPrintStartupSpew; |
| |
| GrGLGpu::GrGLGpu(GrGLContext* ctx, GrContext* context) |
| : GrGpu(context) |
| , fGLContext(ctx) { |
| SkASSERT(ctx); |
| fCaps.reset(SkRef(ctx->caps())); |
| |
| fHWBoundTextureUniqueIDs.reset(this->glCaps().maxFragmentTextureUnits()); |
| |
| GrGLClearErr(this->glInterface()); |
| if (gPrintStartupSpew) { |
| const GrGLubyte* vendor; |
| const GrGLubyte* renderer; |
| const GrGLubyte* version; |
| GL_CALL_RET(vendor, GetString(GR_GL_VENDOR)); |
| GL_CALL_RET(renderer, GetString(GR_GL_RENDERER)); |
| GL_CALL_RET(version, GetString(GR_GL_VERSION)); |
| SkDebugf("------------------------- create GrGLGpu %p --------------\n", |
| this); |
| SkDebugf("------ VENDOR %s\n", vendor); |
| SkDebugf("------ RENDERER %s\n", renderer); |
| SkDebugf("------ VERSION %s\n", version); |
| SkDebugf("------ EXTENSIONS\n"); |
| this->glContext().extensions().print(); |
| SkDebugf("\n"); |
| SkDebugf("%s", this->glCaps().dump().c_str()); |
| } |
| |
| fProgramCache = new ProgramCache(this); |
| |
| SkASSERT(this->glCaps().maxVertexAttributes() >= GrGeometryProcessor::kMaxVertexAttribs); |
| |
| fHWProgramID = 0; |
| fTempSrcFBOID = 0; |
| fTempDstFBOID = 0; |
| fStencilClearFBOID = 0; |
| |
| if (this->glCaps().shaderCaps()->pathRenderingSupport()) { |
| fPathRendering.reset(new GrGLPathRendering(this)); |
| } |
| this->createCopyPrograms(); |
| fWireRectProgram.fProgram = 0; |
| fWireRectArrayBuffer = 0; |
| if (this->glCaps().shaderCaps()->plsPathRenderingSupport()) { |
| this->createPLSSetupProgram(); |
| } |
| else { |
| memset(&fPLSSetupProgram, 0, sizeof(fPLSSetupProgram)); |
| } |
| fHWPLSEnabled = false; |
| fPLSHasBeenUsed = false; |
| } |
| |
| GrGLGpu::~GrGLGpu() { |
| // Delete the path rendering explicitly, since it will need working gpu object to release the |
| // resources the object itself holds. |
| fPathRendering.reset(); |
| |
| if (0 != fHWProgramID) { |
| // detach the current program so there is no confusion on OpenGL's part |
| // that we want it to be deleted |
| GL_CALL(UseProgram(0)); |
| } |
| |
| if (0 != fTempSrcFBOID) { |
| GL_CALL(DeleteFramebuffers(1, &fTempSrcFBOID)); |
| } |
| if (0 != fTempDstFBOID) { |
| GL_CALL(DeleteFramebuffers(1, &fTempDstFBOID)); |
| } |
| if (0 != fStencilClearFBOID) { |
| GL_CALL(DeleteFramebuffers(1, &fStencilClearFBOID)); |
| } |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(fCopyPrograms); ++i) { |
| if (0 != fCopyPrograms[i].fProgram) { |
| GL_CALL(DeleteProgram(fCopyPrograms[i].fProgram)); |
| } |
| } |
| |
| if (0 != fCopyProgramArrayBuffer) { |
| GL_CALL(DeleteBuffers(1, &fCopyProgramArrayBuffer)); |
| } |
| |
| if (0 != fWireRectProgram.fProgram) { |
| GL_CALL(DeleteProgram(fWireRectProgram.fProgram)); |
| } |
| |
| if (0 != fWireRectArrayBuffer) { |
| GL_CALL(DeleteBuffers(1, &fWireRectArrayBuffer)); |
| } |
| |
| if (0 != fPLSSetupProgram.fArrayBuffer) { |
| GL_CALL(DeleteBuffers(1, &fPLSSetupProgram.fArrayBuffer)); |
| } |
| |
| if (0 != fPLSSetupProgram.fProgram) { |
| GL_CALL(DeleteProgram(fPLSSetupProgram.fProgram)); |
| } |
| |
| delete fProgramCache; |
| } |
| |
| void GrGLGpu::createPLSSetupProgram() { |
| const GrGLSLCaps* glslCaps = this->glCaps().glslCaps(); |
| const char* version = glslCaps->versionDeclString(); |
| |
| GrGLSLShaderVar aVertex("a_vertex", kVec2f_GrSLType, GrShaderVar::kAttribute_TypeModifier); |
| GrGLSLShaderVar uTexCoordXform("u_texCoordXform", kVec4f_GrSLType, |
| GrShaderVar::kUniform_TypeModifier); |
| GrGLSLShaderVar uPosXform("u_posXform", kVec4f_GrSLType, GrShaderVar::kUniform_TypeModifier); |
| GrGLSLShaderVar uTexture("u_texture", kSampler2D_GrSLType, GrShaderVar::kUniform_TypeModifier); |
| GrGLSLShaderVar vTexCoord("v_texCoord", kVec2f_GrSLType, GrShaderVar::kVaryingOut_TypeModifier); |
| |
| SkString vshaderTxt(version); |
| if (glslCaps->noperspectiveInterpolationSupport()) { |
| if (const char* extension = glslCaps->noperspectiveInterpolationExtensionString()) { |
| vshaderTxt.appendf("#extension %s : require\n", extension); |
| } |
| vTexCoord.addModifier("noperspective"); |
| } |
| aVertex.appendDecl(glslCaps, &vshaderTxt); |
| vshaderTxt.append(";"); |
| uTexCoordXform.appendDecl(glslCaps, &vshaderTxt); |
| vshaderTxt.append(";"); |
| uPosXform.appendDecl(glslCaps, &vshaderTxt); |
| vshaderTxt.append(";"); |
| vTexCoord.appendDecl(glslCaps, &vshaderTxt); |
| vshaderTxt.append(";"); |
| |
| vshaderTxt.append( |
| "// PLS Setup Program VS\n" |
| "void main() {" |
| " gl_Position.xy = a_vertex * u_posXform.xy + u_posXform.zw;" |
| " gl_Position.zw = vec2(0, 1);" |
| "}" |
| ); |
| |
| SkString fshaderTxt(version); |
| if (glslCaps->noperspectiveInterpolationSupport()) { |
| if (const char* extension = glslCaps->noperspectiveInterpolationExtensionString()) { |
| fshaderTxt.appendf("#extension %s : require\n", extension); |
| } |
| } |
| fshaderTxt.append("#extension "); |
| fshaderTxt.append(glslCaps->fbFetchExtensionString()); |
| fshaderTxt.append(" : require\n"); |
| fshaderTxt.append("#extension GL_EXT_shader_pixel_local_storage : require\n"); |
| GrGLSLAppendDefaultFloatPrecisionDeclaration(kDefault_GrSLPrecision, *glslCaps, &fshaderTxt); |
| vTexCoord.setTypeModifier(GrShaderVar::kVaryingIn_TypeModifier); |
| vTexCoord.appendDecl(glslCaps, &fshaderTxt); |
| fshaderTxt.append(";"); |
| uTexture.appendDecl(glslCaps, &fshaderTxt); |
| fshaderTxt.append(";"); |
| |
| fshaderTxt.appendf( |
| "// PLS Setup Program FS\n" |
| GR_GL_PLS_PATH_DATA_DECL |
| "void main() {\n" |
| " " GR_GL_PLS_DSTCOLOR_NAME " = gl_LastFragColorARM;\n" |
| " pls.windings = ivec4(0, 0, 0, 0);\n" |
| "}" |
| ); |
| GL_CALL_RET(fPLSSetupProgram.fProgram, CreateProgram()); |
| const char* str; |
| GrGLint length; |
| |
| str = vshaderTxt.c_str(); |
| length = SkToInt(vshaderTxt.size()); |
| GrGLuint vshader = GrGLCompileAndAttachShader(*fGLContext, fPLSSetupProgram.fProgram, |
| GR_GL_VERTEX_SHADER, &str, &length, 1, &fStats); |
| |
| str = fshaderTxt.c_str(); |
| length = SkToInt(fshaderTxt.size()); |
| GrGLuint fshader = GrGLCompileAndAttachShader(*fGLContext, fPLSSetupProgram.fProgram, |
| GR_GL_FRAGMENT_SHADER, &str, &length, 1, &fStats); |
| |
| GL_CALL(LinkProgram(fPLSSetupProgram.fProgram)); |
| |
| GL_CALL_RET(fPLSSetupProgram.fPosXformUniform, GetUniformLocation(fPLSSetupProgram.fProgram, |
| "u_posXform")); |
| |
| GL_CALL(BindAttribLocation(fPLSSetupProgram.fProgram, 0, "a_vertex")); |
| |
| GL_CALL(DeleteShader(vshader)); |
| GL_CALL(DeleteShader(fshader)); |
| |
| GL_CALL(GenBuffers(1, &fPLSSetupProgram.fArrayBuffer)); |
| fHWGeometryState.setVertexBufferID(this, fPLSSetupProgram.fArrayBuffer); |
| static const GrGLfloat vdata[] = { |
| 0, 0, |
| 0, 1, |
| 1, 0, |
| 1, 1 |
| }; |
| GL_ALLOC_CALL(this->glInterface(), |
| BufferData(GR_GL_ARRAY_BUFFER, |
| (GrGLsizeiptr) sizeof(vdata), |
| vdata, // data ptr |
| GR_GL_STATIC_DRAW)); |
| } |
| |
| void GrGLGpu::contextAbandoned() { |
| INHERITED::contextAbandoned(); |
| fProgramCache->abandon(); |
| fHWProgramID = 0; |
| fTempSrcFBOID = 0; |
| fTempDstFBOID = 0; |
| fStencilClearFBOID = 0; |
| fCopyProgramArrayBuffer = 0; |
| for (size_t i = 0; i < SK_ARRAY_COUNT(fCopyPrograms); ++i) { |
| fCopyPrograms[i].fProgram = 0; |
| } |
| fWireRectProgram.fProgram = 0; |
| fWireRectArrayBuffer = 0; |
| if (this->glCaps().shaderCaps()->pathRenderingSupport()) { |
| this->glPathRendering()->abandonGpuResources(); |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void GrGLGpu::onResetContext(uint32_t resetBits) { |
| // we don't use the zb at all |
| if (resetBits & kMisc_GrGLBackendState) { |
| GL_CALL(Disable(GR_GL_DEPTH_TEST)); |
| GL_CALL(DepthMask(GR_GL_FALSE)); |
| |
| fHWDrawFace = GrPipelineBuilder::kInvalid_DrawFace; |
| |
| if (kGL_GrGLStandard == this->glStandard()) { |
| // Desktop-only state that we never change |
| if (!this->glCaps().isCoreProfile()) { |
| GL_CALL(Disable(GR_GL_POINT_SMOOTH)); |
| GL_CALL(Disable(GR_GL_LINE_SMOOTH)); |
| GL_CALL(Disable(GR_GL_POLYGON_SMOOTH)); |
| GL_CALL(Disable(GR_GL_POLYGON_STIPPLE)); |
| GL_CALL(Disable(GR_GL_COLOR_LOGIC_OP)); |
| GL_CALL(Disable(GR_GL_INDEX_LOGIC_OP)); |
| } |
| // The windows NVIDIA driver has GL_ARB_imaging in the extension string when using a |
| // core profile. This seems like a bug since the core spec removes any mention of |
| // GL_ARB_imaging. |
| if (this->glCaps().imagingSupport() && !this->glCaps().isCoreProfile()) { |
| GL_CALL(Disable(GR_GL_COLOR_TABLE)); |
| } |
| GL_CALL(Disable(GR_GL_POLYGON_OFFSET_FILL)); |
| // Since ES doesn't support glPointSize at all we always use the VS to |
| // set the point size |
| GL_CALL(Enable(GR_GL_VERTEX_PROGRAM_POINT_SIZE)); |
| |
| // We should set glPolygonMode(FRONT_AND_BACK,FILL) here, too. It isn't |
| // currently part of our gl interface. There are probably others as |
| // well. |
| } |
| |
| if (kGLES_GrGLStandard == this->glStandard() && |
| this->hasExtension("GL_ARM_shader_framebuffer_fetch")) { |
| // The arm extension requires specifically enabling MSAA fetching per sample. |
| // On some devices this may have a perf hit. Also multiple render targets are disabled |
| GL_CALL(Enable(GR_GL_FETCH_PER_SAMPLE_ARM)); |
| } |
| fHWWriteToColor = kUnknown_TriState; |
| // we only ever use lines in hairline mode |
| GL_CALL(LineWidth(1)); |
| GL_CALL(Disable(GR_GL_DITHER)); |
| } |
| |
| if (resetBits & kMSAAEnable_GrGLBackendState) { |
| fMSAAEnabled = kUnknown_TriState; |
| |
| if (this->caps()->usesMixedSamples()) { |
| if (0 != this->caps()->maxRasterSamples()) { |
| fHWRasterMultisampleEnabled = kUnknown_TriState; |
| fHWNumRasterSamples = 0; |
| } |
| |
| // The skia blend modes all use premultiplied alpha and therefore expect RGBA coverage |
| // modulation. This state has no effect when not rendering to a mixed sampled target. |
| GL_CALL(CoverageModulation(GR_GL_RGBA)); |
| } |
| } |
| |
| fHWActiveTextureUnitIdx = -1; // invalid |
| |
| if (resetBits & kTextureBinding_GrGLBackendState) { |
| for (int s = 0; s < fHWBoundTextureUniqueIDs.count(); ++s) { |
| fHWBoundTextureUniqueIDs[s] = SK_InvalidUniqueID; |
| } |
| } |
| |
| if (resetBits & kBlend_GrGLBackendState) { |
| fHWBlendState.invalidate(); |
| } |
| |
| if (resetBits & kView_GrGLBackendState) { |
| fHWScissorSettings.invalidate(); |
| fHWViewport.invalidate(); |
| } |
| |
| if (resetBits & kStencil_GrGLBackendState) { |
| fHWStencilSettings.invalidate(); |
| fHWStencilTestEnabled = kUnknown_TriState; |
| } |
| |
| // Vertex |
| if (resetBits & kVertex_GrGLBackendState) { |
| fHWGeometryState.invalidate(); |
| } |
| |
| if (resetBits & kRenderTarget_GrGLBackendState) { |
| fHWBoundRenderTargetUniqueID = SK_InvalidUniqueID; |
| fHWSRGBFramebuffer = kUnknown_TriState; |
| } |
| |
| if (resetBits & kPathRendering_GrGLBackendState) { |
| if (this->caps()->shaderCaps()->pathRenderingSupport()) { |
| this->glPathRendering()->resetContext(); |
| } |
| } |
| |
| // we assume these values |
| if (resetBits & kPixelStore_GrGLBackendState) { |
| if (this->glCaps().unpackRowLengthSupport()) { |
| GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0)); |
| } |
| if (this->glCaps().packRowLengthSupport()) { |
| GL_CALL(PixelStorei(GR_GL_PACK_ROW_LENGTH, 0)); |
| } |
| if (this->glCaps().unpackFlipYSupport()) { |
| GL_CALL(PixelStorei(GR_GL_UNPACK_FLIP_Y, GR_GL_FALSE)); |
| } |
| if (this->glCaps().packFlipYSupport()) { |
| GL_CALL(PixelStorei(GR_GL_PACK_REVERSE_ROW_ORDER, GR_GL_FALSE)); |
| } |
| } |
| |
| if (resetBits & kProgram_GrGLBackendState) { |
| fHWProgramID = 0; |
| } |
| } |
| |
| static GrSurfaceOrigin resolve_origin(GrSurfaceOrigin origin, bool renderTarget) { |
| // By default, GrRenderTargets are GL's normal orientation so that they |
| // can be drawn to by the outside world without the client having |
| // to render upside down. |
| if (kDefault_GrSurfaceOrigin == origin) { |
| return renderTarget ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin; |
| } else { |
| return origin; |
| } |
| } |
| |
| GrTexture* GrGLGpu::onWrapBackendTexture(const GrBackendTextureDesc& desc, |
| GrWrapOwnership ownership) { |
| #ifdef SK_IGNORE_GL_TEXTURE_TARGET |
| if (!desc.fTextureHandle) { |
| return nullptr; |
| } |
| #else |
| const GrGLTextureInfo* info = reinterpret_cast<const GrGLTextureInfo*>(desc.fTextureHandle); |
| if (!info || !info->fID) { |
| return nullptr; |
| } |
| #endif |
| |
| int maxSize = this->caps()->maxTextureSize(); |
| if (desc.fWidth > maxSize || desc.fHeight > maxSize) { |
| return nullptr; |
| } |
| |
| // next line relies on GrBackendTextureDesc's flags matching GrTexture's |
| bool renderTarget = SkToBool(desc.fFlags & kRenderTarget_GrBackendTextureFlag); |
| |
| GrGLTexture::IDDesc idDesc; |
| GrSurfaceDesc surfDesc; |
| |
| #ifdef SK_IGNORE_GL_TEXTURE_TARGET |
| idDesc.fInfo.fID = static_cast<GrGLuint>(desc.fTextureHandle); |
| // We only support GL_TEXTURE_2D at the moment. |
| idDesc.fInfo.fTarget = GR_GL_TEXTURE_2D; |
| #else |
| idDesc.fInfo = *info; |
| #endif |
| |
| if (GR_GL_TEXTURE_EXTERNAL == idDesc.fInfo.fTarget) { |
| if (renderTarget) { |
| // This combination is not supported. |
| return nullptr; |
| } |
| if (!this->glCaps().externalTextureSupport()) { |
| return nullptr; |
| } |
| } else if (GR_GL_TEXTURE_RECTANGLE == idDesc.fInfo.fTarget) { |
| if (!this->glCaps().rectangleTextureSupport()) { |
| return nullptr; |
| } |
| } else if (GR_GL_TEXTURE_2D != idDesc.fInfo.fTarget) { |
| return nullptr; |
| } |
| |
| // Sample count is interpreted to mean the number of samples that Gr code should allocate |
| // for a render buffer that resolves to the texture. We don't support MSAA textures. |
| if (desc.fSampleCnt && !renderTarget) { |
| return nullptr; |
| } |
| |
| switch (ownership) { |
| case kAdopt_GrWrapOwnership: |
| idDesc.fLifeCycle = GrGpuResource::kAdopted_LifeCycle; |
| break; |
| case kBorrow_GrWrapOwnership: |
| idDesc.fLifeCycle = GrGpuResource::kBorrowed_LifeCycle; |
| break; |
| } |
| |
| surfDesc.fFlags = (GrSurfaceFlags) desc.fFlags; |
| surfDesc.fWidth = desc.fWidth; |
| surfDesc.fHeight = desc.fHeight; |
| surfDesc.fConfig = desc.fConfig; |
| surfDesc.fSampleCnt = SkTMin(desc.fSampleCnt, this->caps()->maxSampleCount()); |
| // FIXME: this should be calling resolve_origin(), but Chrome code is currently |
| // assuming the old behaviour, which is that backend textures are always |
| // BottomLeft, even for non-RT's. Once Chrome is fixed, change this to: |
| // glTexDesc.fOrigin = resolve_origin(desc.fOrigin, renderTarget); |
| if (kDefault_GrSurfaceOrigin == desc.fOrigin) { |
| surfDesc.fOrigin = kBottomLeft_GrSurfaceOrigin; |
| } else { |
| surfDesc.fOrigin = desc.fOrigin; |
| } |
| |
| GrGLTexture* texture = nullptr; |
| if (renderTarget) { |
| GrGLRenderTarget::IDDesc rtIDDesc; |
| if (!this->createRenderTargetObjects(surfDesc, GrGpuResource::kUncached_LifeCycle, |
| idDesc.fInfo, &rtIDDesc)) { |
| return nullptr; |
| } |
| texture = new GrGLTextureRenderTarget(this, surfDesc, idDesc, rtIDDesc); |
| } else { |
| texture = new GrGLTexture(this, surfDesc, idDesc); |
| } |
| if (nullptr == texture) { |
| return nullptr; |
| } |
| |
| return texture; |
| } |
| |
| GrRenderTarget* GrGLGpu::onWrapBackendRenderTarget(const GrBackendRenderTargetDesc& wrapDesc, |
| GrWrapOwnership ownership) { |
| GrGLRenderTarget::IDDesc idDesc; |
| idDesc.fRTFBOID = static_cast<GrGLuint>(wrapDesc.fRenderTargetHandle); |
| idDesc.fMSColorRenderbufferID = 0; |
| idDesc.fTexFBOID = GrGLRenderTarget::kUnresolvableFBOID; |
| switch (ownership) { |
| case kAdopt_GrWrapOwnership: |
| idDesc.fLifeCycle = GrGpuResource::kAdopted_LifeCycle; |
| break; |
| case kBorrow_GrWrapOwnership: |
| idDesc.fLifeCycle = GrGpuResource::kBorrowed_LifeCycle; |
| break; |
| } |
| idDesc.fSampleConfig = GrRenderTarget::kUnified_SampleConfig; |
| |
| GrSurfaceDesc desc; |
| desc.fConfig = wrapDesc.fConfig; |
| desc.fFlags = kCheckAllocation_GrSurfaceFlag | kRenderTarget_GrSurfaceFlag; |
| desc.fWidth = wrapDesc.fWidth; |
| desc.fHeight = wrapDesc.fHeight; |
| desc.fSampleCnt = SkTMin(wrapDesc.fSampleCnt, this->caps()->maxSampleCount()); |
| desc.fOrigin = resolve_origin(wrapDesc.fOrigin, true); |
| |
| return GrGLRenderTarget::CreateWrapped(this, desc, idDesc, wrapDesc.fStencilBits); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool GrGLGpu::onGetWritePixelsInfo(GrSurface* dstSurface, int width, int height, |
| GrPixelConfig srcConfig, |
| DrawPreference* drawPreference, |
| WritePixelTempDrawInfo* tempDrawInfo) { |
| if (kIndex_8_GrPixelConfig == srcConfig || GrPixelConfigIsCompressed(dstSurface->config())) { |
| return false; |
| } |
| |
| // This subclass only allows writes to textures. If the dst is not a texture we have to draw |
| // into it. We could use glDrawPixels on GLs that have it, but we don't today. |
| if (!dstSurface->asTexture()) { |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| } else { |
| GrGLTexture* texture = static_cast<GrGLTexture*>(dstSurface->asTexture()); |
| if (GR_GL_TEXTURE_EXTERNAL == texture->target()) { |
| // We don't currently support writing pixels to EXTERNAL textures. |
| return false; |
| } |
| } |
| |
| if (GrPixelConfigIsSRGB(dstSurface->config()) != GrPixelConfigIsSRGB(srcConfig)) { |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| } |
| |
| // Start off assuming no swizzling |
| tempDrawInfo->fSwizzle = GrSwizzle::RGBA(); |
| tempDrawInfo->fWriteConfig = srcConfig; |
| |
| // These settings we will always want if a temp draw is performed. Initially set the config |
| // to srcConfig, though that may be modified if we decide to do a R/G swap. |
| tempDrawInfo->fTempSurfaceDesc.fFlags = kNone_GrSurfaceFlags; |
| tempDrawInfo->fTempSurfaceDesc.fConfig = srcConfig; |
| tempDrawInfo->fTempSurfaceDesc.fWidth = width; |
| tempDrawInfo->fTempSurfaceDesc.fHeight = height; |
| tempDrawInfo->fTempSurfaceDesc.fSampleCnt = 0; |
| tempDrawInfo->fTempSurfaceDesc.fOrigin = kTopLeft_GrSurfaceOrigin; // no CPU y-flip for TL. |
| |
| bool configsAreRBSwaps = GrPixelConfigSwapRAndB(srcConfig) == dstSurface->config(); |
| |
| if (configsAreRBSwaps) { |
| if (!this->caps()->isConfigTexturable(srcConfig)) { |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| tempDrawInfo->fTempSurfaceDesc.fConfig = dstSurface->config(); |
| tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); |
| tempDrawInfo->fWriteConfig = dstSurface->config(); |
| } else if (this->glCaps().rgba8888PixelsOpsAreSlow() && |
| kRGBA_8888_GrPixelConfig == srcConfig) { |
| ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); |
| tempDrawInfo->fTempSurfaceDesc.fConfig = dstSurface->config(); |
| tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); |
| tempDrawInfo->fWriteConfig = dstSurface->config(); |
| } else if (kGLES_GrGLStandard == this->glStandard() && |
| this->glCaps().bgraIsInternalFormat()) { |
| // The internal format and external formats must match texture uploads so we can't |
| // swizzle while uploading when BGRA is a distinct internal format. |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| tempDrawInfo->fTempSurfaceDesc.fConfig = dstSurface->config(); |
| tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); |
| tempDrawInfo->fWriteConfig = dstSurface->config(); |
| } |
| } |
| |
| if (!this->glCaps().unpackFlipYSupport() && |
| kBottomLeft_GrSurfaceOrigin == dstSurface->origin()) { |
| ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); |
| } |
| |
| return true; |
| } |
| |
| static bool check_write_and_transfer_input(GrGLTexture* glTex, GrSurface* surface, |
| GrPixelConfig config) { |
| if (!glTex) { |
| return false; |
| } |
| |
| // OpenGL doesn't do sRGB <-> linear conversions when reading and writing pixels. |
| if (GrPixelConfigIsSRGB(surface->config()) != GrPixelConfigIsSRGB(config)) { |
| return false; |
| } |
| |
| // Write or transfer of pixels is not implemented for TEXTURE_EXTERNAL textures |
| if (GR_GL_TEXTURE_EXTERNAL == glTex->target()) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool GrGLGpu::onWritePixels(GrSurface* surface, |
| int left, int top, int width, int height, |
| GrPixelConfig config, const void* buffer, |
| size_t rowBytes) { |
| GrGLTexture* glTex = static_cast<GrGLTexture*>(surface->asTexture()); |
| |
| if (!check_write_and_transfer_input(glTex, surface, config)) { |
| return false; |
| } |
| |
| this->setScratchTextureUnit(); |
| GL_CALL(BindTexture(glTex->target(), glTex->textureID())); |
| |
| bool success = false; |
| if (GrPixelConfigIsCompressed(glTex->desc().fConfig)) { |
| // We check that config == desc.fConfig in GrGLGpu::canWriteTexturePixels() |
| SkASSERT(config == glTex->desc().fConfig); |
| success = this->uploadCompressedTexData(glTex->desc(), glTex->target(), buffer, |
| kWrite_UploadType, left, top, width, height); |
| } else { |
| success = this->uploadTexData(glTex->desc(), glTex->target(), kWrite_UploadType, |
| left, top, width, height, config, buffer, rowBytes); |
| } |
| |
| if (success) { |
| glTex->texturePriv().dirtyMipMaps(true); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool GrGLGpu::onTransferPixels(GrSurface* surface, |
| int left, int top, int width, int height, |
| GrPixelConfig config, GrTransferBuffer* buffer, |
| size_t offset, size_t rowBytes) { |
| GrGLTexture* glTex = static_cast<GrGLTexture*>(surface->asTexture()); |
| |
| if (!check_write_and_transfer_input(glTex, surface, config)) { |
| return false; |
| } |
| |
| // For the moment, can't transfer compressed data |
| if (GrPixelConfigIsCompressed(glTex->desc().fConfig)) { |
| return false; |
| } |
| |
| this->setScratchTextureUnit(); |
| GL_CALL(BindTexture(glTex->target(), glTex->textureID())); |
| |
| SkASSERT(!buffer->isMapped()); |
| GrGLTransferBuffer* glBuffer = reinterpret_cast<GrGLTransferBuffer*>(buffer); |
| // bind the transfer buffer |
| SkASSERT(GR_GL_PIXEL_UNPACK_BUFFER == glBuffer->bufferType() || |
| GR_GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM == glBuffer->bufferType()); |
| GL_CALL(BindBuffer(glBuffer->bufferType(), glBuffer->bufferID())); |
| |
| bool success = false; |
| success = this->uploadTexData(glTex->desc(), glTex->target(), kTransfer_UploadType, |
| left, top, width, height, config, buffer, rowBytes); |
| |
| if (success) { |
| glTex->texturePriv().dirtyMipMaps(true); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| // For GL_[UN]PACK_ALIGNMENT. |
| static inline GrGLint config_alignment(GrPixelConfig config) { |
| SkASSERT(!GrPixelConfigIsCompressed(config)); |
| switch (config) { |
| case kAlpha_8_GrPixelConfig: |
| return 1; |
| case kRGB_565_GrPixelConfig: |
| case kRGBA_4444_GrPixelConfig: |
| case kAlpha_half_GrPixelConfig: |
| case kRGBA_half_GrPixelConfig: |
| return 2; |
| case kRGBA_8888_GrPixelConfig: |
| case kBGRA_8888_GrPixelConfig: |
| case kSRGBA_8888_GrPixelConfig: |
| case kRGBA_float_GrPixelConfig: |
| return 4; |
| default: |
| return 0; |
| } |
| } |
| |
| static inline GrGLenum check_alloc_error(const GrSurfaceDesc& desc, |
| const GrGLInterface* interface) { |
| if (SkToBool(desc.fFlags & kCheckAllocation_GrSurfaceFlag)) { |
| return GR_GL_GET_ERROR(interface); |
| } else { |
| return CHECK_ALLOC_ERROR(interface); |
| } |
| } |
| |
| bool GrGLGpu::uploadTexData(const GrSurfaceDesc& desc, |
| GrGLenum target, |
| UploadType uploadType, |
| int left, int top, int width, int height, |
| GrPixelConfig dataConfig, |
| const void* dataOrOffset, |
| size_t rowBytes) { |
| SkASSERT(dataOrOffset || kNewTexture_UploadType == uploadType || |
| kTransfer_UploadType == uploadType); |
| |
| // If we're uploading compressed data then we should be using uploadCompressedTexData |
| SkASSERT(!GrPixelConfigIsCompressed(dataConfig)); |
| |
| SkASSERT(this->caps()->isConfigTexturable(desc.fConfig)); |
| |
| size_t bpp = GrBytesPerPixel(dataConfig); |
| if (!GrSurfacePriv::AdjustWritePixelParams(desc.fWidth, desc.fHeight, bpp, &left, &top, |
| &width, &height, &dataOrOffset, &rowBytes)) { |
| return false; |
| } |
| size_t trimRowBytes = width * bpp; |
| |
| // in case we need a temporary, trimmed copy of the src pixels |
| SkAutoSMalloc<128 * 128> tempStorage; |
| |
| // Internal format comes from the texture desc. |
| GrGLenum internalFormat; |
| // External format and type come from the upload data. |
| GrGLenum externalFormat; |
| GrGLenum externalType; |
| if (!this->glCaps().getTexImageFormats(desc.fConfig, dataConfig, &internalFormat, |
| &externalFormat, &externalType)) { |
| return false; |
| } |
| /* |
| * 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 may not let us specify |
| * GL_UNPACK_ROW_LENGTH. |
| */ |
| bool restoreGLRowLength = false; |
| bool swFlipY = false; |
| bool glFlipY = false; |
| if (dataOrOffset) { |
| if (kBottomLeft_GrSurfaceOrigin == desc.fOrigin) { |
| if (this->glCaps().unpackFlipYSupport()) { |
| glFlipY = true; |
| } else { |
| swFlipY = true; |
| } |
| } |
| if (this->glCaps().unpackRowLengthSupport() && !swFlipY) { |
| // can't use this for flipping, only non-neg values allowed. :( |
| if (rowBytes != trimRowBytes) { |
| GrGLint rowLength = static_cast<GrGLint>(rowBytes / bpp); |
| GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, rowLength)); |
| restoreGLRowLength = true; |
| } |
| } else if (kTransfer_UploadType != uploadType) { |
| if (trimRowBytes != rowBytes || swFlipY) { |
| // copy data into our new storage, skipping the trailing bytes |
| size_t trimSize = height * trimRowBytes; |
| const char* src = (const char*)dataOrOffset; |
| if (swFlipY) { |
| src += (height - 1) * rowBytes; |
| } |
| char* dst = (char*)tempStorage.reset(trimSize); |
| for (int y = 0; y < height; y++) { |
| memcpy(dst, src, trimRowBytes); |
| if (swFlipY) { |
| src -= rowBytes; |
| } else { |
| src += rowBytes; |
| } |
| dst += trimRowBytes; |
| } |
| // now point data to our copied version |
| dataOrOffset = tempStorage.get(); |
| } |
| } else { |
| return false; |
| } |
| if (glFlipY) { |
| GL_CALL(PixelStorei(GR_GL_UNPACK_FLIP_Y, GR_GL_TRUE)); |
| } |
| GL_CALL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, config_alignment(dataConfig))); |
| } |
| bool succeeded = true; |
| if (kNewTexture_UploadType == uploadType) { |
| if (dataOrOffset && |
| !(0 == left && 0 == top && desc.fWidth == width && desc.fHeight == height)) { |
| succeeded = false; |
| } else { |
| if (desc.fTextureStorageAllocator.fAllocateTextureStorage) { |
| if (dataOrOffset) { |
| GL_CALL(TexSubImage2D(target, |
| 0, // level |
| left, top, |
| width, height, |
| externalFormat, externalType, dataOrOffset)); |
| } |
| } else { |
| CLEAR_ERROR_BEFORE_ALLOC(this->glInterface()); |
| GL_ALLOC_CALL(this->glInterface(), TexImage2D( |
| target, 0, internalFormat, desc.fWidth, desc.fHeight, 0, externalFormat, |
| externalType, dataOrOffset)); |
| GrGLenum error = check_alloc_error(desc, this->glInterface()); |
| if (error != GR_GL_NO_ERROR) { |
| succeeded = false; |
| } |
| } |
| } |
| } else { |
| if (swFlipY || glFlipY) { |
| top = desc.fHeight - (top + height); |
| } |
| GL_CALL(TexSubImage2D(target, |
| 0, // level |
| left, top, |
| width, height, |
| externalFormat, externalType, dataOrOffset)); |
| } |
| |
| if (restoreGLRowLength) { |
| SkASSERT(this->glCaps().unpackRowLengthSupport()); |
| GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0)); |
| } |
| if (glFlipY) { |
| GL_CALL(PixelStorei(GR_GL_UNPACK_FLIP_Y, GR_GL_FALSE)); |
| } |
| return succeeded; |
| } |
| |
| // TODO: This function is using a lot of wonky semantics like, if width == -1 |
| // then set width = desc.fWdith ... blah. A better way to do it might be to |
| // create a CompressedTexData struct that takes a desc/ptr and figures out |
| // the proper upload semantics. Then users can construct this function how they |
| // see fit if they want to go against the "standard" way to do it. |
| bool GrGLGpu::uploadCompressedTexData(const GrSurfaceDesc& desc, |
| GrGLenum target, |
| const void* data, |
| UploadType uploadType, |
| int left, int top, int width, int height) { |
| SkASSERT(this->caps()->isConfigTexturable(desc.fConfig)); |
| SkASSERT(kTransfer_UploadType != uploadType && |
| (data || kNewTexture_UploadType != uploadType)); |
| |
| // No support for software flip y, yet... |
| SkASSERT(kBottomLeft_GrSurfaceOrigin != desc.fOrigin); |
| |
| if (-1 == width) { |
| width = desc.fWidth; |
| } |
| #ifdef SK_DEBUG |
| else { |
| SkASSERT(width <= desc.fWidth); |
| } |
| #endif |
| |
| if (-1 == height) { |
| height = desc.fHeight; |
| } |
| #ifdef SK_DEBUG |
| else { |
| SkASSERT(height <= desc.fHeight); |
| } |
| #endif |
| |
| // Make sure that the width and height that we pass to OpenGL |
| // is a multiple of the block size. |
| size_t dataSize = GrCompressedFormatDataSize(desc.fConfig, width, height); |
| |
| // We only need the internal format for compressed 2D textures. |
| GrGLenum internalFormat; |
| if (!this->glCaps().getCompressedTexImageFormats(desc.fConfig, &internalFormat)) { |
| return false; |
| } |
| |
| if (kNewTexture_UploadType == uploadType) { |
| CLEAR_ERROR_BEFORE_ALLOC(this->glInterface()); |
| GL_ALLOC_CALL(this->glInterface(), |
| CompressedTexImage2D(target, |
| 0, // level |
| internalFormat, |
| width, height, |
| 0, // border |
| SkToInt(dataSize), |
| data)); |
| GrGLenum error = check_alloc_error(desc, this->glInterface()); |
| if (error != GR_GL_NO_ERROR) { |
| return false; |
| } |
| } else { |
| // Paletted textures can't be updated. |
| if (GR_GL_PALETTE8_RGBA8 == internalFormat) { |
| return false; |
| } |
| GL_CALL(CompressedTexSubImage2D(target, |
| 0, // level |
| left, top, |
| width, height, |
| internalFormat, |
| SkToInt(dataSize), |
| data)); |
| } |
| |
| return true; |
| } |
| |
| static bool renderbuffer_storage_msaa(const GrGLContext& ctx, |
| int sampleCount, |
| GrGLenum format, |
| int width, int height) { |
| CLEAR_ERROR_BEFORE_ALLOC(ctx.interface()); |
| SkASSERT(GrGLCaps::kNone_MSFBOType != ctx.caps()->msFBOType()); |
| switch (ctx.caps()->msFBOType()) { |
| case GrGLCaps::kDesktop_ARB_MSFBOType: |
| case GrGLCaps::kDesktop_EXT_MSFBOType: |
| case GrGLCaps::kMixedSamples_MSFBOType: |
| case GrGLCaps::kES_3_0_MSFBOType: |
| GL_ALLOC_CALL(ctx.interface(), |
| RenderbufferStorageMultisample(GR_GL_RENDERBUFFER, |
| sampleCount, |
| format, |
| width, height)); |
| break; |
| case GrGLCaps::kES_Apple_MSFBOType: |
| GL_ALLOC_CALL(ctx.interface(), |
| RenderbufferStorageMultisampleES2APPLE(GR_GL_RENDERBUFFER, |
| sampleCount, |
| format, |
| width, height)); |
| break; |
| case GrGLCaps::kES_EXT_MsToTexture_MSFBOType: |
| case GrGLCaps::kES_IMG_MsToTexture_MSFBOType: |
| GL_ALLOC_CALL(ctx.interface(), |
| RenderbufferStorageMultisampleES2EXT(GR_GL_RENDERBUFFER, |
| sampleCount, |
| format, |
| width, height)); |
| break; |
| case GrGLCaps::kNone_MSFBOType: |
| SkFAIL("Shouldn't be here if we don't support multisampled renderbuffers."); |
| break; |
| } |
| return (GR_GL_NO_ERROR == CHECK_ALLOC_ERROR(ctx.interface())); |
| } |
| |
| bool GrGLGpu::createRenderTargetObjects(const GrSurfaceDesc& desc, |
| GrGpuResource::LifeCycle lifeCycle, |
| const GrGLTextureInfo& texInfo, |
| GrGLRenderTarget::IDDesc* idDesc) { |
| idDesc->fMSColorRenderbufferID = 0; |
| idDesc->fRTFBOID = 0; |
| idDesc->fTexFBOID = 0; |
| idDesc->fLifeCycle = lifeCycle; |
| idDesc->fSampleConfig = (GrGLCaps::kMixedSamples_MSFBOType == this->glCaps().msFBOType() && |
| desc.fSampleCnt > 0) ? GrRenderTarget::kStencil_SampleConfig : |
| GrRenderTarget::kUnified_SampleConfig; |
| |
| GrGLenum status; |
| |
| GrGLenum colorRenderbufferFormat = 0; // suppress warning |
| |
| if (desc.fSampleCnt > 0 && GrGLCaps::kNone_MSFBOType == this->glCaps().msFBOType()) { |
| goto FAILED; |
| } |
| |
| GL_CALL(GenFramebuffers(1, &idDesc->fTexFBOID)); |
| if (!idDesc->fTexFBOID) { |
| goto FAILED; |
| } |
| |
| // If we are using multisampling we will create two FBOS. We render to one and then resolve to |
| // the texture bound to the other. The exception is the IMG multisample extension. With this |
| // extension the texture is multisampled when rendered to and then auto-resolves it when it is |
| // rendered from. |
| if (desc.fSampleCnt > 0 && this->glCaps().usesMSAARenderBuffers()) { |
| GL_CALL(GenFramebuffers(1, &idDesc->fRTFBOID)); |
| GL_CALL(GenRenderbuffers(1, &idDesc->fMSColorRenderbufferID)); |
| if (!idDesc->fRTFBOID || |
| !idDesc->fMSColorRenderbufferID) { |
| goto FAILED; |
| } |
| if (!this->glCaps().getRenderbufferFormat(desc.fConfig, &colorRenderbufferFormat)) { |
| return false; |
| } |
| } else { |
| idDesc->fRTFBOID = idDesc->fTexFBOID; |
| } |
| |
| // below here we may bind the FBO |
| fHWBoundRenderTargetUniqueID = SK_InvalidUniqueID; |
| if (idDesc->fRTFBOID != idDesc->fTexFBOID) { |
| SkASSERT(desc.fSampleCnt > 0); |
| GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, idDesc->fMSColorRenderbufferID)); |
| if (!renderbuffer_storage_msaa(*fGLContext, |
| desc.fSampleCnt, |
| colorRenderbufferFormat, |
| desc.fWidth, desc.fHeight)) { |
| goto FAILED; |
| } |
| fStats.incRenderTargetBinds(); |
| GL_CALL(BindFramebuffer(GR_GL_FRAMEBUFFER, idDesc->fRTFBOID)); |
| GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_RENDERBUFFER, |
| idDesc->fMSColorRenderbufferID)); |
| if ((desc.fFlags & kCheckAllocation_GrSurfaceFlag) || |
| !this->glCaps().isConfigVerifiedColorAttachment(desc.fConfig)) { |
| GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER)); |
| if (status != GR_GL_FRAMEBUFFER_COMPLETE) { |
| goto FAILED; |
| } |
| fGLContext->caps()->markConfigAsValidColorAttachment(desc.fConfig); |
| } |
| } |
| fStats.incRenderTargetBinds(); |
| GL_CALL(BindFramebuffer(GR_GL_FRAMEBUFFER, idDesc->fTexFBOID)); |
| |
| if (this->glCaps().usesImplicitMSAAResolve() && desc.fSampleCnt > 0) { |
| GL_CALL(FramebufferTexture2DMultisample(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| texInfo.fTarget, |
| texInfo.fID, 0, desc.fSampleCnt)); |
| } else { |
| GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| texInfo.fTarget, |
| texInfo.fID, 0)); |
| } |
| if ((desc.fFlags & kCheckAllocation_GrSurfaceFlag) || |
| !this->glCaps().isConfigVerifiedColorAttachment(desc.fConfig)) { |
| GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER)); |
| if (status != GR_GL_FRAMEBUFFER_COMPLETE) { |
| goto FAILED; |
| } |
| fGLContext->caps()->markConfigAsValidColorAttachment(desc.fConfig); |
| } |
| |
| return true; |
| |
| FAILED: |
| if (idDesc->fMSColorRenderbufferID) { |
| GL_CALL(DeleteRenderbuffers(1, &idDesc->fMSColorRenderbufferID)); |
| } |
| if (idDesc->fRTFBOID != idDesc->fTexFBOID) { |
| GL_CALL(DeleteFramebuffers(1, &idDesc->fRTFBOID)); |
| } |
| if (idDesc->fTexFBOID) { |
| GL_CALL(DeleteFramebuffers(1, &idDesc->fTexFBOID)); |
| } |
| return false; |
| } |
| |
| // good to set a break-point here to know when createTexture fails |
| static GrTexture* return_null_texture() { |
| // SkDEBUGFAIL("null texture"); |
| return nullptr; |
| } |
| |
| #if 0 && defined(SK_DEBUG) |
| static size_t as_size_t(int x) { |
| return x; |
| } |
| #endif |
| |
| GrTexture* GrGLGpu::onCreateTexture(const GrSurfaceDesc& desc, |
| GrGpuResource::LifeCycle lifeCycle, |
| const void* srcData, size_t rowBytes) { |
| // We fail if the MSAA was requested and is not available. |
| if (GrGLCaps::kNone_MSFBOType == this->glCaps().msFBOType() && desc.fSampleCnt) { |
| //SkDebugf("MSAA RT requested but not supported on this platform."); |
| return return_null_texture(); |
| } |
| |
| bool renderTarget = SkToBool(desc.fFlags & kRenderTarget_GrSurfaceFlag); |
| |
| GrGLTexture::IDDesc idDesc; |
| idDesc.fLifeCycle = lifeCycle; |
| GrGLTexture::TexParams initialTexParams; |
| if (!this->createTextureImpl(desc, &idDesc.fInfo, renderTarget, srcData, |
| &initialTexParams, rowBytes)) { |
| return return_null_texture(); |
| } |
| |
| GrGLTexture* tex; |
| if (renderTarget) { |
| // unbind the texture from the texture unit before binding it to the frame buffer |
| GL_CALL(BindTexture(idDesc.fInfo.fTarget, 0)); |
| GrGLRenderTarget::IDDesc rtIDDesc; |
| |
| if (!this->createRenderTargetObjects(desc, lifeCycle, idDesc.fInfo, &rtIDDesc)) { |
| GL_CALL(DeleteTextures(1, &idDesc.fInfo.fID)); |
| return return_null_texture(); |
| } |
| tex = new GrGLTextureRenderTarget(this, desc, idDesc, rtIDDesc); |
| } else { |
| tex = new GrGLTexture(this, desc, idDesc); |
| } |
| tex->setCachedTexParams(initialTexParams, this->getResetTimestamp()); |
| #ifdef TRACE_TEXTURE_CREATION |
| SkDebugf("--- new texture [%d] size=(%d %d) config=%d\n", |
| glTexDesc.fTextureID, desc.fWidth, desc.fHeight, desc.fConfig); |
| #endif |
| return tex; |
| } |
| |
| GrTexture* GrGLGpu::onCreateCompressedTexture(const GrSurfaceDesc& desc, |
| GrGpuResource::LifeCycle lifeCycle, |
| const void* srcData) { |
| // Make sure that we're not flipping Y. |
| if (kBottomLeft_GrSurfaceOrigin == desc.fOrigin) { |
| return return_null_texture(); |
| } |
| |
| GrGLTexture::IDDesc idDesc; |
| idDesc.fInfo.fID = 0; |
| GL_CALL(GenTextures(1, &idDesc.fInfo.fID)); |
| idDesc.fLifeCycle = lifeCycle; |
| // We only support GL_TEXTURE_2D at the moment. |
| idDesc.fInfo.fTarget = GR_GL_TEXTURE_2D; |
| |
| if (!idDesc.fInfo.fID) { |
| return return_null_texture(); |
| } |
| |
| this->setScratchTextureUnit(); |
| GL_CALL(BindTexture(idDesc.fInfo.fTarget, idDesc.fInfo.fID)); |
| |
| // Some drivers like to know filter/wrap before seeing glTexImage2D. Some |
| // drivers have a bug where an FBO won't be complete if it includes a |
| // texture that is not mipmap complete (considering the filter in use). |
| GrGLTexture::TexParams initialTexParams; |
| // we only set a subset here so invalidate first |
| initialTexParams.invalidate(); |
| initialTexParams.fMinFilter = GR_GL_NEAREST; |
| initialTexParams.fMagFilter = GR_GL_NEAREST; |
| initialTexParams.fWrapS = GR_GL_CLAMP_TO_EDGE; |
| initialTexParams.fWrapT = GR_GL_CLAMP_TO_EDGE; |
| GL_CALL(TexParameteri(idDesc.fInfo.fTarget, |
| GR_GL_TEXTURE_MAG_FILTER, |
| initialTexParams.fMagFilter)); |
| GL_CALL(TexParameteri(idDesc.fInfo.fTarget, |
| GR_GL_TEXTURE_MIN_FILTER, |
| initialTexParams.fMinFilter)); |
| GL_CALL(TexParameteri(idDesc.fInfo.fTarget, |
| GR_GL_TEXTURE_WRAP_S, |
| initialTexParams.fWrapS)); |
| GL_CALL(TexParameteri(idDesc.fInfo.fTarget, |
| GR_GL_TEXTURE_WRAP_T, |
| initialTexParams.fWrapT)); |
| |
| if (!this->uploadCompressedTexData(desc, idDesc.fInfo.fTarget, srcData)) { |
| GL_CALL(DeleteTextures(1, &idDesc.fInfo.fID)); |
| return return_null_texture(); |
| } |
| |
| GrGLTexture* tex; |
| tex = new GrGLTexture(this, desc, idDesc); |
| tex->setCachedTexParams(initialTexParams, this->getResetTimestamp()); |
| #ifdef TRACE_TEXTURE_CREATION |
| SkDebugf("--- new compressed texture [%d] size=(%d %d) config=%d\n", |
| glTexDesc.fTextureID, desc.fWidth, desc.fHeight, desc.fConfig); |
| #endif |
| return tex; |
| } |
| |
| namespace { |
| |
| const GrGLuint kUnknownBitCount = GrGLStencilAttachment::kUnknownBitCount; |
| |
| void inline get_stencil_rb_sizes(const GrGLInterface* gl, |
| GrGLStencilAttachment::Format* format) { |
| |
| // we shouldn't ever know one size and not the other |
| SkASSERT((kUnknownBitCount == format->fStencilBits) == |
| (kUnknownBitCount == format->fTotalBits)); |
| if (kUnknownBitCount == format->fStencilBits) { |
| GR_GL_GetRenderbufferParameteriv(gl, GR_GL_RENDERBUFFER, |
| GR_GL_RENDERBUFFER_STENCIL_SIZE, |
| (GrGLint*)&format->fStencilBits); |
| if (format->fPacked) { |
| GR_GL_GetRenderbufferParameteriv(gl, GR_GL_RENDERBUFFER, |
| GR_GL_RENDERBUFFER_DEPTH_SIZE, |
| (GrGLint*)&format->fTotalBits); |
| format->fTotalBits += format->fStencilBits; |
| } else { |
| format->fTotalBits = format->fStencilBits; |
| } |
| } |
| } |
| } |
| |
| int GrGLGpu::getCompatibleStencilIndex(GrPixelConfig config) { |
| static const int kSize = 16; |
| SkASSERT(this->caps()->isConfigRenderable(config, false)); |
| if (!this->glCaps().hasStencilFormatBeenDeterminedForConfig(config)) { |
| // Default to unsupported, set this if we find a stencil format that works. |
| int firstWorkingStencilFormatIndex = -1; |
| // Create color texture |
| GrGLuint colorID = 0; |
| GL_CALL(GenTextures(1, &colorID)); |
| this->setScratchTextureUnit(); |
| GL_CALL(BindTexture(GR_GL_TEXTURE_2D, colorID)); |
| GL_CALL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_MAG_FILTER, |
| GR_GL_NEAREST)); |
| GL_CALL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_MIN_FILTER, |
| GR_GL_NEAREST)); |
| GL_CALL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_WRAP_S, |
| GR_GL_CLAMP_TO_EDGE)); |
| GL_CALL(TexParameteri(GR_GL_TEXTURE_2D, |
| GR_GL_TEXTURE_WRAP_T, |
| GR_GL_CLAMP_TO_EDGE)); |
| |
| GrGLenum internalFormat; |
| GrGLenum externalFormat; |
| GrGLenum externalType; |
| if (!this->glCaps().getTexImageFormats(config, config, &internalFormat, &externalFormat, |
| &externalType)) { |
| return false; |
| } |
| CLEAR_ERROR_BEFORE_ALLOC(this->glInterface()); |
| GL_ALLOC_CALL(this->glInterface(), TexImage2D(GR_GL_TEXTURE_2D, |
| 0, |
| internalFormat, |
| kSize, |
| kSize, |
| 0, |
| externalFormat, |
| externalType, |
| NULL)); |
| if (GR_GL_NO_ERROR != CHECK_ALLOC_ERROR(this->glInterface())) { |
| GL_CALL(DeleteTextures(1, &colorID)); |
| return -1; |
| } |
| |
| // unbind the texture from the texture unit before binding it to the frame buffer |
| GL_CALL(BindTexture(GR_GL_TEXTURE_2D, 0)); |
| |
| // Create Framebuffer |
| GrGLuint fb = 0; |
| GL_CALL(GenFramebuffers(1, &fb)); |
| GL_CALL(BindFramebuffer(GR_GL_FRAMEBUFFER, fb)); |
| fHWBoundRenderTargetUniqueID = SK_InvalidUniqueID; |
| GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER, |
| GR_GL_COLOR_ATTACHMENT0, |
| GR_GL_TEXTURE_2D, |
| colorID, |
| 0)); |
| GrGLuint sbRBID = 0; |
| GL_CALL(GenRenderbuffers(1, &sbRBID)); |
| |
| // look over formats till I find a compatible one |
| int stencilFmtCnt = this->glCaps().stencilFormats().count(); |
| if (sbRBID) { |
| GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, sbRBID)); |
| for (int i = 0; i < stencilFmtCnt && sbRBID; ++i) { |
| const GrGLCaps::StencilFormat& sFmt = this->glCaps().stencilFormats()[i]; |
| CLEAR_ERROR_BEFORE_ALLOC(this->glInterface()); |
| GL_ALLOC_CALL(this->glInterface(), RenderbufferStorage(GR_GL_RENDERBUFFER, |
| sFmt.fInternalFormat, |
| kSize, kSize)); |
| if (GR_GL_NO_ERROR == CHECK_ALLOC_ERROR(this->glInterface())) { |
| GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_STENCIL_ATTACHMENT, |
| GR_GL_RENDERBUFFER, sbRBID)); |
| if (sFmt.fPacked) { |
| GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_DEPTH_ATTACHMENT, |
| GR_GL_RENDERBUFFER, sbRBID)); |
| } else { |
| GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_DEPTH_ATTACHMENT, |
| GR_GL_RENDERBUFFER, 0)); |
| } |
| GrGLenum status; |
| GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER)); |
| if (status == GR_GL_FRAMEBUFFER_COMPLETE) { |
| firstWorkingStencilFormatIndex = i; |
| break; |
| } |
| GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_STENCIL_ATTACHMENT, |
| GR_GL_RENDERBUFFER, 0)); |
| if (sFmt.fPacked) { |
| GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, |
| GR_GL_DEPTH_ATTACHMENT, |
| GR_GL_RENDERBUFFER, 0)); |
| } |
| } |
| } |
| GL_CALL(DeleteRenderbuffers(1, &sbRBID)); |
| } |
| GL_CALL(DeleteTextures(1, &colorID)); |
| GL_CALL(BindFramebuffer(GR_GL_FRAMEBUFFER, 0)); |
| GL_CALL(DeleteFramebuffers(1, &fb)); |
| fGLContext->caps()->setStencilFormatIndexForConfig(config, firstWorkingStencilFormatIndex); |
| } |
| return this->glCaps().getStencilFormatIndexForConfig(config); |
| } |
| |
| bool GrGLGpu::createTextureImpl(const GrSurfaceDesc& desc, GrGLTextureInfo* info, |
| bool renderTarget, const void* srcData, |
| GrGLTexture::TexParams* initialTexParams, size_t rowBytes) { |
| // Some drivers like to know filter/wrap before seeing glTexImage2D. Some |
| // drivers have a bug where an FBO won't be complete if it includes a |
| // texture that is not mipmap complete (considering the filter in use). |
| |
| // we only set a subset here so invalidate first |
| initialTexParams->invalidate(); |
| initialTexParams->fMinFilter = GR_GL_NEAREST; |
| initialTexParams->fMagFilter = GR_GL_NEAREST; |
| initialTexParams->fWrapS = GR_GL_CLAMP_TO_EDGE; |
| initialTexParams->fWrapT = GR_GL_CLAMP_TO_EDGE; |
| |
| if (desc.fTextureStorageAllocator.fAllocateTextureStorage) { |
| return this->createTextureExternalAllocatorImpl(desc, info, srcData, rowBytes); |
| } |
| |
| info->fID = 0; |
| info->fTarget = GR_GL_TEXTURE_2D; |
| GL_CALL(GenTextures(1, &(info->fID))); |
| |
| if (!info->fID) { |
| return false; |
| } |
| |
| this->setScratchTextureUnit(); |
| GL_CALL(BindTexture(info->fTarget, info->fID)); |
| |
| if (renderTarget && this->glCaps().textureUsageSupport()) { |
| // provides a hint about how this texture will be used |
| GL_CALL(TexParameteri(info->fTarget, |
| GR_GL_TEXTURE_USAGE, |
| GR_GL_FRAMEBUFFER_ATTACHMENT)); |
| } |
| |
| GL_CALL(TexParameteri(info->fTarget, |
| GR_GL_TEXTURE_MAG_FILTER, |
| initialTexParams->fMagFilter)); |
| GL_CALL(TexParameteri(info->fTarget, |
| GR_GL_TEXTURE_MIN_FILTER, |
| initialTexParams->fMinFilter)); |
| GL_CALL(TexParameteri(info->fTarget, |
| GR_GL_TEXTURE_WRAP_S, |
| initialTexParams->fWrapS)); |
| GL_CALL(TexParameteri(info->fTarget, |
| GR_GL_TEXTURE_WRAP_T, |
| initialTexParams->fWrapT)); |
| if (!this->uploadTexData(desc, info->fTarget, kNewTexture_UploadType, 0, 0, |
| desc.fWidth, desc.fHeight, |
| desc.fConfig, srcData, rowBytes)) { |
| GL_CALL(DeleteTextures(1, &(info->fID))); |
| return false; |
| } |
| return true; |
| } |
| |
| bool GrGLGpu::createTextureExternalAllocatorImpl( |
| const GrSurfaceDesc& desc, GrGLTextureInfo* info, const void* srcData, size_t rowBytes) { |
| switch (desc.fTextureStorageAllocator.fAllocateTextureStorage( |
| desc.fTextureStorageAllocator.fCtx, reinterpret_cast<GrBackendObject>(info), |
| desc.fWidth, desc.fHeight, desc.fConfig, srcData, desc.fOrigin)) { |
| case GrTextureStorageAllocator::Result::kSucceededAndUploaded: |
| return true; |
| case GrTextureStorageAllocator::Result::kFailed: |
| return false; |
| case GrTextureStorageAllocator::Result::kSucceededWithoutUpload: |
| break; |
| } |
| |
| if (!this->uploadTexData(desc, info->fTarget, kNewTexture_UploadType, 0, 0, |
| desc.fWidth, desc.fHeight, |
| desc.fConfig, srcData, rowBytes)) { |
| desc.fTextureStorageAllocator.fDeallocateTextureStorage( |
| desc.fTextureStorageAllocator.fCtx, reinterpret_cast<GrBackendObject>(info)); |
| return false; |
| } |
| return true; |
| } |
| |
| GrStencilAttachment* GrGLGpu::createStencilAttachmentForRenderTarget(const GrRenderTarget* rt, |
| int width, |
| int height) { |
| // All internally created RTs are also textures. We don't create |
| // SBs for a client's standalone RT (that is a RT that isn't also a texture). |
| SkASSERT(rt->asTexture()); |
| SkASSERT(width >= rt->width()); |
| SkASSERT(height >= rt->height()); |
| |
| int samples = rt->numStencilSamples(); |
| GrGLStencilAttachment::IDDesc sbDesc; |
| |
| int sIdx = this->getCompatibleStencilIndex(rt->config()); |
| if (sIdx < 0) { |
| return nullptr; |
| } |
| |
| if (!sbDesc.fRenderbufferID) { |
| GL_CALL(GenRenderbuffers(1, &sbDesc.fRenderbufferID)); |
| } |
| if (!sbDesc.fRenderbufferID) { |
| return nullptr; |
| } |
| GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, sbDesc.fRenderbufferID)); |
| const GrGLCaps::StencilFormat& sFmt = this->glCaps().stencilFormats()[sIdx]; |
| CLEAR_ERROR_BEFORE_ALLOC(this->glInterface()); |
| // we do this "if" so that we don't call the multisample |
| // version on a GL that doesn't have an MSAA extension. |
| if (samples > 0) { |
| SkAssertResult(renderbuffer_storage_msaa(*fGLContext, |
| samples, |
| sFmt.fInternalFormat, |
| width, height)); |
| } else { |
| GL_ALLOC_CALL(this->glInterface(), RenderbufferStorage(GR_GL_RENDERBUFFER, |
| sFmt.fInternalFormat, |
| width, height)); |
| SkASSERT(GR_GL_NO_ERROR == check_alloc_error(rt->desc(), this->glInterface())); |
| } |
| fStats.incStencilAttachmentCreates(); |
| // After sized formats we attempt an unsized format and take |
| // whatever sizes GL gives us. In that case we query for the size. |
| GrGLStencilAttachment::Format format = sFmt; |
| get_stencil_rb_sizes(this->glInterface(), &format); |
| GrGLStencilAttachment* stencil = new GrGLStencilAttachment(this, |
| sbDesc, |
| width, |
| height, |
| samples, |
| format); |
| return stencil; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| // GL_STREAM_DRAW triggers an optimization in Chromium's GPU process where a client's vertex buffer |
| // objects are implemented as client-side-arrays on tile-deferred architectures. |
| #define DYNAMIC_USAGE_PARAM GR_GL_STREAM_DRAW |
| |
| GrVertexBuffer* GrGLGpu::onCreateVertexBuffer(size_t size, bool dynamic) { |
| GrGLVertexBuffer::Desc desc; |
| desc.fUsage = dynamic ? GrGLBufferImpl::kDynamicDraw_Usage : GrGLBufferImpl::kStaticDraw_Usage; |
| desc.fSizeInBytes = size; |
| |
| if (this->glCaps().useNonVBOVertexAndIndexDynamicData() && dynamic) { |
| desc.fID = 0; |
| GrGLVertexBuffer* vertexBuffer = new GrGLVertexBuffer(this, desc); |
| return vertexBuffer; |
| } else { |
| desc.fID = 0; |
| GL_CALL(GenBuffers(1, &desc.fID)); |
| if (desc.fID) { |
| fHWGeometryState.setVertexBufferID(this, desc.fID); |
| CLEAR_ERROR_BEFORE_ALLOC(this->glInterface()); |
| // make sure driver can allocate memory for this buffer |
| GL_ALLOC_CALL(this->glInterface(), |
| BufferData(GR_GL_ARRAY_BUFFER, |
| (GrGLsizeiptr) desc.fSizeInBytes, |
| nullptr, // data ptr |
| dynamic ? DYNAMIC_USAGE_PARAM : GR_GL_STATIC_DRAW)); |
| if (CHECK_ALLOC_ERROR(this->glInterface()) != GR_GL_NO_ERROR) { |
| GL_CALL(DeleteBuffers(1, &desc.fID)); |
| this->notifyVertexBufferDelete(desc.fID); |
| return nullptr; |
| } |
| GrGLVertexBuffer* vertexBuffer = new GrGLVertexBuffer(this, desc); |
| return vertexBuffer; |
| } |
| return nullptr; |
| } |
| } |
| |
| GrIndexBuffer* GrGLGpu::onCreateIndexBuffer(size_t size, bool dynamic) { |
| GrGLIndexBuffer::Desc desc; |
| desc.fUsage = dynamic ? GrGLBufferImpl::kDynamicDraw_Usage : GrGLBufferImpl::kStaticDraw_Usage; |
| desc.fSizeInBytes = size; |
| |
| if (this->glCaps().useNonVBOVertexAndIndexDynamicData() && dynamic) { |
| desc.fID = 0; |
| GrIndexBuffer* indexBuffer = new GrGLIndexBuffer(this, desc); |
| return indexBuffer; |
| } else { |
| desc.fID = 0; |
| GL_CALL(GenBuffers(1, &desc.fID)); |
| if (desc.fID) { |
| fHWGeometryState.setIndexBufferIDOnDefaultVertexArray(this, desc.fID); |
| CLEAR_ERROR_BEFORE_ALLOC(this->glInterface()); |
| // make sure driver can allocate memory for this buffer |
| GL_ALLOC_CALL(this->glInterface(), |
| BufferData(GR_GL_ELEMENT_ARRAY_BUFFER, |
| (GrGLsizeiptr) desc.fSizeInBytes, |
| nullptr, // data ptr |
| dynamic ? DYNAMIC_USAGE_PARAM : GR_GL_STATIC_DRAW)); |
| if (CHECK_ALLOC_ERROR(this->glInterface()) != GR_GL_NO_ERROR) { |
| GL_CALL(DeleteBuffers(1, &desc.fID)); |
| this->notifyIndexBufferDelete(desc.fID); |
| return nullptr; |
| } |
| GrIndexBuffer* indexBuffer = new GrGLIndexBuffer(this, desc); |
| return indexBuffer; |
| } |
| return nullptr; |
| } |
| } |
| |
| GrTransferBuffer* GrGLGpu::onCreateTransferBuffer(size_t size, TransferType xferType) { |
| GrGLCaps::TransferBufferType xferBufferType = this->ctxInfo().caps()->transferBufferType(); |
| if (GrGLCaps::kNone_TransferBufferType == xferBufferType) { |
| return nullptr; |
| } |
| |
| GrGLTransferBuffer::Desc desc; |
| bool toGpu = (kCpuToGpu_TransferType == xferType); |
| desc.fUsage = toGpu ? GrGLBufferImpl::kStreamDraw_Usage : GrGLBufferImpl::kStreamRead_Usage; |
| |
| desc.fSizeInBytes = size; |
| desc.fID = 0; |
| GL_CALL(GenBuffers(1, &desc.fID)); |
| if (desc.fID) { |
| CLEAR_ERROR_BEFORE_ALLOC(this->glInterface()); |
| // make sure driver can allocate memory for this bmapuffer |
| GrGLenum target; |
| if (GrGLCaps::kChromium_TransferBufferType == xferBufferType) { |
| target = toGpu ? GR_GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM |
| : GR_GL_PIXEL_PACK_TRANSFER_BUFFER_CHROMIUM; |
| } else { |
| SkASSERT(GrGLCaps::kPBO_TransferBufferType == xferBufferType); |
| target = toGpu ? GR_GL_PIXEL_UNPACK_BUFFER : GR_GL_PIXEL_PACK_BUFFER; |
| } |
| GL_CALL(BindBuffer(target, desc.fID)); |
| GL_ALLOC_CALL(this->glInterface(), |
| BufferData(target, |
| (GrGLsizeiptr) desc.fSizeInBytes, |
| nullptr, // data ptr |
| (toGpu ? GR_GL_STREAM_DRAW : GR_GL_STREAM_READ))); |
| if (CHECK_ALLOC_ERROR(this->glInterface()) != GR_GL_NO_ERROR) { |
| GL_CALL(DeleteBuffers(1, &desc.fID)); |
| return nullptr; |
| } |
| GrTransferBuffer* transferBuffer = new GrGLTransferBuffer(this, desc, target); |
| return transferBuffer; |
| } |
| |
| return nullptr; |
| } |
| |
| void GrGLGpu::flushScissor(const GrScissorState& scissorState, |
| const GrGLIRect& rtViewport, |
| GrSurfaceOrigin rtOrigin) { |
| if (scissorState.enabled()) { |
| GrGLIRect scissor; |
| scissor.setRelativeTo(rtViewport, |
| scissorState.rect().fLeft, |
| scissorState.rect().fTop, |
| scissorState.rect().width(), |
| scissorState.rect().height(), |
| rtOrigin); |
| // if the scissor fully contains the viewport then we fall through and |
| // disable the scissor test. |
| if (!scissor.contains(rtViewport)) { |
| if (fHWScissorSettings.fRect != scissor) { |
| scissor.pushToGLScissor(this->glInterface()); |
| fHWScissorSettings.fRect = scissor; |
| } |
| if (kYes_TriState != fHWScissorSettings.fEnabled) { |
| GL_CALL(Enable(GR_GL_SCISSOR_TEST)); |
| fHWScissorSettings.fEnabled = kYes_TriState; |
| } |
| return; |
| } |
| } |
| |
| // See fall through note above |
| this->disableScissor(); |
| } |
| |
| bool GrGLGpu::flushGLState(const DrawArgs& args) { |
| GrXferProcessor::BlendInfo blendInfo; |
| const GrPipeline& pipeline = *args.fPipeline; |
| args.fPipeline->getXferProcessor().getBlendInfo(&blendInfo); |
| |
| this->flushColorWrite(blendInfo.fWriteColor); |
| this->flushDrawFace(pipeline.getDrawFace()); |
| |
| SkAutoTUnref<GrGLProgram> program(fProgramCache->refProgram(args)); |
| if (!program) { |
| GrCapsDebugf(this->caps(), "Failed to create program!\n"); |
| return false; |
| } |
| |
| GrGLuint programID = program->programID(); |
| if (fHWProgramID != programID) { |
| GL_CALL(UseProgram(programID)); |
| fHWProgramID = programID; |
| } |
| |
| if (blendInfo.fWriteColor) { |
| // Swizzle the blend to match what the shader will output. |
| const GrSwizzle& swizzle = this->glCaps().glslCaps()->configOutputSwizzle( |
| args.fPipeline->getRenderTarget()->config()); |
| this->flushBlend(blendInfo, swizzle); |
| } |
| |
| SkSTArray<8, const GrTextureAccess*> textureAccesses; |
| program->setData(*args.fPrimitiveProcessor, pipeline, &textureAccesses); |
| |
| int numTextureAccesses = textureAccesses.count(); |
| for (int i = 0; i < numTextureAccesses; i++) { |
| this->bindTexture(i, textureAccesses[i]->getParams(), |
| static_cast<GrGLTexture*>(textureAccesses[i]->getTexture())); |
| } |
| |
| GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(pipeline.getRenderTarget()); |
| this->flushStencil(pipeline.getStencil()); |
| this->flushScissor(pipeline.getScissorState(), glRT->getViewport(), glRT->origin()); |
| this->flushHWAAState(glRT, pipeline.isHWAntialiasState(), !pipeline.getStencil().isDisabled()); |
| |
| // This must come after textures are flushed because a texture may need |
| // to be msaa-resolved (which will modify bound FBO state). |
| this->flushRenderTarget(glRT, nullptr); |
| |
| return true; |
| } |
| |
| void GrGLGpu::setupGeometry(const GrPrimitiveProcessor& primProc, |
| const GrNonInstancedVertices& vertices, |
| size_t* indexOffsetInBytes) { |
| GrGLVertexBuffer* vbuf; |
| vbuf = (GrGLVertexBuffer*) vertices.vertexBuffer(); |
| |
| SkASSERT(vbuf); |
| SkASSERT(!vbuf->isMapped()); |
| |
| GrGLIndexBuffer* ibuf = nullptr; |
| if (vertices.isIndexed()) { |
| SkASSERT(indexOffsetInBytes); |
| |
| *indexOffsetInBytes = 0; |
| ibuf = (GrGLIndexBuffer*)vertices.indexBuffer(); |
| |
| SkASSERT(ibuf); |
| SkASSERT(!ibuf->isMapped()); |
| *indexOffsetInBytes += ibuf->baseOffset(); |
| } |
| GrGLAttribArrayState* attribState = |
| fHWGeometryState.bindArrayAndBuffersToDraw(this, vbuf, ibuf); |
| |
| int vaCount = primProc.numAttribs(); |
| if (vaCount > 0) { |
| |
| GrGLsizei stride = static_cast<GrGLsizei>(primProc.getVertexStride()); |
| |
| size_t vertexOffsetInBytes = stride * vertices.startVertex(); |
| |
| vertexOffsetInBytes += vbuf->baseOffset(); |
| |
| uint32_t usedAttribArraysMask = 0; |
| size_t offset = 0; |
| |
| for (int attribIndex = 0; attribIndex < vaCount; attribIndex++) { |
| const GrGeometryProcessor::Attribute& attrib = primProc.getAttrib(attribIndex); |
| usedAttribArraysMask |= (1 << attribIndex); |
| GrVertexAttribType attribType = attrib.fType; |
| attribState->set(this, |
| attribIndex, |
| vbuf->bufferID(), |
| attribType, |
| stride, |
| reinterpret_cast<GrGLvoid*>(vertexOffsetInBytes + offset)); |
| offset += attrib.fOffset; |
| } |
| attribState->disableUnusedArrays(this, usedAttribArraysMask); |
| } |
| } |
| |
| void GrGLGpu::buildProgramDesc(GrProgramDesc* desc, |
| const GrPrimitiveProcessor& primProc, |
| const GrPipeline& pipeline) const { |
| if (!GrGLProgramDescBuilder::Build(desc, primProc, pipeline, *this->glCaps().glslCaps())) { |
| SkDEBUGFAIL("Failed to generate GL program descriptor"); |
| } |
| } |
| |
| void GrGLGpu::bindBuffer(GrGLuint id, GrGLenum type) { |
| this->handleDirtyContext(); |
| if (GR_GL_ARRAY_BUFFER == type) { |
| this->bindVertexBuffer(id); |
| } else if (GR_GL_ELEMENT_ARRAY_BUFFER == type) { |
| this->bindIndexBufferAndDefaultVertexArray(id); |
| } else { |
| GR_GL_CALL(this->glInterface(), BindBuffer(type, id)); |
| } |
| } |
| |
| void GrGLGpu::releaseBuffer(GrGLuint id, GrGLenum type) { |
| this->handleDirtyContext(); |
| GL_CALL(DeleteBuffers(1, &id)); |
| if (GR_GL_ARRAY_BUFFER == type) { |
| this->notifyVertexBufferDelete(id); |
| } else if (GR_GL_ELEMENT_ARRAY_BUFFER == type) { |
| this->notifyIndexBufferDelete(id); |
| } |
| } |
| |
| static GrGLenum get_gl_usage(GrGLBufferImpl::Usage usage) { |
| static const GrGLenum grToGL[] = { |
| GR_GL_STATIC_DRAW, // GrGLBufferImpl::kStaticDraw_Usage |
| DYNAMIC_USAGE_PARAM, // GrGLBufferImpl::kDynamicDraw_Usage |
| GR_GL_STREAM_DRAW, // GrGLBufferImpl::kStreamDraw_Usage |
| GR_GL_STREAM_READ, // GrGLBufferImpl::kStreamRead_Usage |
| }; |
| static_assert(SK_ARRAY_COUNT(grToGL) == GrGLBufferImpl::kUsageCount, "array_size_mismatch"); |
| |
| return grToGL[usage]; |
| } |
| |
| void* GrGLGpu::mapBuffer(GrGLuint id, GrGLenum type, GrGLBufferImpl::Usage usage, |
| size_t currentSize, size_t requestedSize) { |
| void* mapPtr = nullptr; |
| GrGLenum glUsage = get_gl_usage(usage); |
| bool readOnly = (GrGLBufferImpl::kStreamRead_Usage == usage); |
| |
| // Handling dirty context is done in the bindBuffer call |
| switch (this->glCaps().mapBufferType()) { |
| case GrGLCaps::kNone_MapBufferType: |
| break; |
| case GrGLCaps::kMapBuffer_MapBufferType: |
| this->bindBuffer(id, type); |
| // Let driver know it can discard the old data |
| if (GR_GL_USE_BUFFER_DATA_NULL_HINT || currentSize != requestedSize) { |
| GL_CALL(BufferData(type, requestedSize, nullptr, glUsage)); |
| } |
| GL_CALL_RET(mapPtr, MapBuffer(type, readOnly ? GR_GL_READ_ONLY : GR_GL_WRITE_ONLY)); |
| break; |
| case GrGLCaps::kMapBufferRange_MapBufferType: { |
| this->bindBuffer(id, type); |
| // Make sure the GL buffer size agrees with fDesc before mapping. |
| if (currentSize != requestedSize) { |
| GL_CALL(BufferData(type, requestedSize, nullptr, glUsage)); |
| } |
| GrGLbitfield writeAccess = GR_GL_MAP_WRITE_BIT; |
| // TODO: allow the client to specify invalidation in the stream draw case |
| if (GrGLBufferImpl::kStreamDraw_Usage != usage) { |
| writeAccess |= GR_GL_MAP_INVALIDATE_BUFFER_BIT; |
| } |
| GL_CALL_RET(mapPtr, MapBufferRange(type, 0, requestedSize, readOnly ? |
| GR_GL_MAP_READ_BIT : |
| writeAccess)); |
| break; |
| } |
| case GrGLCaps::kChromium_MapBufferType: |
| this->bindBuffer(id, type); |
| // Make sure the GL buffer size agrees with fDesc before mapping. |
| if (currentSize != requestedSize) { |
| GL_CALL(BufferData(type, requestedSize, nullptr, glUsage)); |
| } |
| GL_CALL_RET(mapPtr, MapBufferSubData(type, 0, requestedSize, readOnly ? |
| GR_GL_READ_ONLY : |
| GR_GL_WRITE_ONLY)); |
| break; |
| } |
| return mapPtr; |
| } |
| |
| void GrGLGpu::bufferData(GrGLuint id, GrGLenum type, GrGLBufferImpl::Usage usage, |
| size_t currentSize, const void* src, size_t srcSizeInBytes) { |
| SkASSERT(srcSizeInBytes <= currentSize); |
| // bindbuffer handles dirty context |
| this->bindBuffer(id, type); |
| GrGLenum glUsage = get_gl_usage(usage); |
| |
| #if GR_GL_USE_BUFFER_DATA_NULL_HINT |
| if (currentSize == srcSizeInBytes) { |
| GL_CALL(BufferData(type, (GrGLsizeiptr) srcSizeInBytes, src, glUsage)); |
| } else { |
| // Before we call glBufferSubData we give the driver a hint using |
| // glBufferData with nullptr. This makes the old buffer contents |
| // inaccessible to future draws. The GPU may still be processing |
| // draws that reference the old contents. With this hint it can |
| // assign a different allocation for the new contents to avoid |
| // flushing the gpu past draws consuming the old contents. |
| // TODO I think we actually want to try calling bufferData here |
| GL_CALL(BufferData(type, currentSize, nullptr, glUsage)); |
| GL_CALL(BufferSubData(type, 0, (GrGLsizeiptr) srcSizeInBytes, src)); |
| } |
| #else |
| // Note that we're cheating on the size here. Currently no methods |
| // allow a partial update that preserves contents of non-updated |
| // portions of the buffer (map() does a glBufferData(..size, nullptr..)) |
| GL_CALL(BufferData(type, srcSizeInBytes, src, glUsage)); |
| #endif |
| } |
| |
| void GrGLGpu::unmapBuffer(GrGLuint id, GrGLenum type, void* mapPtr) { |
| // bind buffer handles the dirty context |
| switch (this->glCaps().mapBufferType()) { |
| case GrGLCaps::kNone_MapBufferType: |
| SkDEBUGFAIL("Shouldn't get here."); |
| return; |
| case GrGLCaps::kMapBuffer_MapBufferType: // fall through |
| case GrGLCaps::kMapBufferRange_MapBufferType: |
| this->bindBuffer(id, type); |
| GL_CALL(UnmapBuffer(type)); |
| break; |
| case GrGLCaps::kChromium_MapBufferType: |
| this->bindBuffer(id, type); |
| GL_CALL(UnmapBufferSubData(mapPtr)); |
| break; |
| } |
| } |
| |
| void GrGLGpu::disableScissor() { |
| if (kNo_TriState != fHWScissorSettings.fEnabled) { |
| GL_CALL(Disable(GR_GL_SCISSOR_TEST)); |
| fHWScissorSettings.fEnabled = kNo_TriState; |
| return; |
| } |
| } |
| |
| void GrGLGpu::onClear(GrRenderTarget* target, const SkIRect& rect, GrColor color) { |
| // parent class should never let us get here with no RT |
| SkASSERT(target); |
| GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(target); |
| |
| this->flushRenderTarget(glRT, &rect); |
| GrScissorState scissorState; |
| scissorState.set(rect); |
| this->flushScissor(scissorState, glRT->getViewport(), glRT->origin()); |
| |
| GrGLfloat r, g, b, a; |
| static const GrGLfloat scale255 = 1.f / 255.f; |
| a = GrColorUnpackA(color) * scale255; |
| GrGLfloat scaleRGB = scale255; |
| r = GrColorUnpackR(color) * scaleRGB; |
| g = GrColorUnpackG(color) * scaleRGB; |
| b = GrColorUnpackB(color) * scaleRGB; |
| |
| GL_CALL(ColorMask(GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE)); |
| fHWWriteToColor = kYes_TriState; |
| GL_CALL(ClearColor(r, g, b, a)); |
| GL_CALL(Clear(GR_GL_COLOR_BUFFER_BIT)); |
| } |
| |
| void GrGLGpu::discard(GrRenderTarget* renderTarget) { |
| SkASSERT(renderTarget); |
| if (!this->caps()->discardRenderTargetSupport()) { |
| return; |
| } |
| |
| GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(renderTarget); |
| if (renderTarget->getUniqueID() != fHWBoundRenderTargetUniqueID) { |
| fHWBoundRenderTargetUniqueID = SK_InvalidUniqueID; |
| fStats.incRenderTargetBinds(); |
| GL_CALL(BindFramebuffer(GR_GL_FRAMEBUFFER, glRT->renderFBOID())); |
| } |
| switch (this->glCaps().invalidateFBType()) { |
| case GrGLCaps::kNone_InvalidateFBType: |
| SkFAIL("Should never get here."); |
| break; |
| case GrGLCaps::kInvalidate_InvalidateFBType: |
| if (0 == glRT->renderFBOID()) { |
| // When rendering to the default framebuffer the legal values for attachments |
| // are GL_COLOR, GL_DEPTH, GL_STENCIL, ... rather than the various FBO attachment |
| // types. |
| static const GrGLenum attachments[] = { GR_GL_COLOR }; |
| GL_CALL(InvalidateFramebuffer(GR_GL_FRAMEBUFFER, SK_ARRAY_COUNT(attachments), |
| attachments)); |
| } else { |
| static const GrGLenum attachments[] = { GR_GL_COLOR_ATTACHMENT0 }; |
| GL_CALL(InvalidateFramebuffer(GR_GL_FRAMEBUFFER, SK_ARRAY_COUNT(attachments), |
| attachments)); |
| } |
| break; |
| case GrGLCaps::kDiscard_InvalidateFBType: { |
| if (0 == glRT->renderFBOID()) { |
| // When rendering to the default framebuffer the legal values for attachments |
| // are GL_COLOR, GL_DEPTH, GL_STENCIL, ... rather than the various FBO attachment |
| // types. See glDiscardFramebuffer() spec. |
| static const GrGLenum attachments[] = { GR_GL_COLOR }; |
| GL_CALL(DiscardFramebuffer(GR_GL_FRAMEBUFFER, SK_ARRAY_COUNT(attachments), |
| attachments)); |
| } else { |
| static const GrGLenum attachments[] = { GR_GL_COLOR_ATTACHMENT0 }; |
| GL_CALL(DiscardFramebuffer(GR_GL_FRAMEBUFFER, SK_ARRAY_COUNT(attachments), |
| attachments)); |
| } |
| break; |
| } |
| } |
| renderTarget->flagAsResolved(); |
| } |
| |
| void GrGLGpu::clearStencil(GrRenderTarget* target) { |
| if (nullptr == target) { |
| return; |
| } |
| GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(target); |
| this->flushRenderTarget(glRT, &SkIRect::EmptyIRect()); |
| |
| this->disableScissor(); |
| |
| GL_CALL(StencilMask(0xffffffff)); |
| GL_CALL(ClearStencil(0)); |
| GL_CALL(Clear(GR_GL_STENCIL_BUFFER_BIT)); |
| fHWStencilSettings.invalidate(); |
| } |
| |
| void GrGLGpu::onClearStencilClip(GrRenderTarget* target, const SkIRect& rect, bool insideClip) { |
| SkASSERT(target); |
| |
| GrStencilAttachment* sb = target->renderTargetPriv().getStencilAttachment(); |
| // this should only be called internally when we know we have a |
| // stencil buffer. |
| SkASSERT(sb); |
| GrGLint stencilBitCount = sb->bits(); |
| #if 0 |
| SkASSERT(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 |
| GrGLint value; |
| if (insideClip) { |
| value = (1 << (stencilBitCount - 1)); |
| } else { |
| value = 0; |
| } |
| GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(target); |
| this->flushRenderTarget(glRT, &SkIRect::EmptyIRect()); |
| |
| GrScissorState scissorState; |
| scissorState.set(rect); |
| this->flushScissor(scissorState, glRT->getViewport(), glRT->origin()); |
| |
| GL_CALL(StencilMask((uint32_t) clipStencilMask)); |
| GL_CALL(ClearStencil(value)); |
| GL_CALL(Clear(GR_GL_STENCIL_BUFFER_BIT)); |
| fHWStencilSettings.invalidate(); |
| } |
| |
| static bool read_pixels_pays_for_y_flip(GrRenderTarget* renderTarget, const GrGLCaps& caps, |
| int width, int height, GrPixelConfig config, |
| size_t rowBytes) { |
| // If this render target is already TopLeft, we don't need to flip. |
| if (kTopLeft_GrSurfaceOrigin == renderTarget->origin()) { |
| return false; |
| } |
| |
| // If the read is really small or smaller than the min texture size, don't force a draw. |
| static const int kMinSize = 32; |
| if (width < kMinSize || height < kMinSize) { |
| return false; |
| } |
| |
| // if GL can do the flip then we'll never pay for it. |
| if (caps.packFlipYSupport()) { |
| return false; |
| } |
| |
| // If we have to do memcpy to handle non-trim rowBytes then we |
| // get the flip for free. Otherwise it costs. |
| // Note that we're assuming that 0 rowBytes has already been handled and that the width has been |
| // clipped. |
| return caps.packRowLengthSupport() || GrBytesPerPixel(config) * width == rowBytes; |
| } |
| |
| bool GrGLGpu::readPixelsSupported(GrRenderTarget* target, GrPixelConfig readConfig) { |
| auto bindRenderTarget = [this, target]() -> bool { |
| this->flushRenderTarget(static_cast<GrGLRenderTarget*>(target), &SkIRect::EmptyIRect()); |
| return true; |
| }; |
| auto getIntegerv = [this](GrGLenum query, GrGLint* value) { |
| GR_GL_GetIntegerv(this->glInterface(), query, value); |
| }; |
| GrPixelConfig rtConfig = target->config(); |
| return this->glCaps().readPixelsSupported(rtConfig, readConfig, getIntegerv, bindRenderTarget); |
| } |
| |
| bool GrGLGpu::readPixelsSupported(GrPixelConfig rtConfig, GrPixelConfig readConfig) { |
| auto bindRenderTarget = [this, rtConfig]() -> bool { |
| GrTextureDesc desc; |
| desc.fConfig = rtConfig; |
| desc.fWidth = desc.fHeight = 16; |
| desc.fFlags = kRenderTarget_GrSurfaceFlag; |
| SkAutoTUnref<GrTexture> temp(this->createTexture(desc, false, nullptr, 0)); |
| if (!temp) { |
| return false; |
| } |
| GrGLRenderTarget* glrt = static_cast<GrGLRenderTarget*>(temp->asRenderTarget()); |
| this->flushRenderTarget(glrt, &SkIRect::EmptyIRect()); |
| return true; |
| }; |
| auto getIntegerv = [this](GrGLenum query, GrGLint* value) { |
| GR_GL_GetIntegerv(this->glInterface(), query, value); |
| }; |
| return this->glCaps().readPixelsSupported(rtConfig, readConfig, getIntegerv, bindRenderTarget); |
| } |
| |
| bool GrGLGpu::readPixelsSupported(GrSurface* surfaceForConfig, GrPixelConfig readConfig) { |
| if (GrRenderTarget* rt = surfaceForConfig->asRenderTarget()) { |
| return this->readPixelsSupported(rt, readConfig); |
| } else { |
| GrPixelConfig config = surfaceForConfig->config(); |
| return this->readPixelsSupported(config, readConfig); |
| } |
| } |
| |
| static bool requires_srgb_conversion(GrPixelConfig a, GrPixelConfig b) { |
| if (GrPixelConfigIsSRGB(a)) { |
| return !GrPixelConfigIsSRGB(b) && !GrPixelConfigIsAlphaOnly(b); |
| } else if (GrPixelConfigIsSRGB(b)) { |
| return !GrPixelConfigIsSRGB(a) && !GrPixelConfigIsAlphaOnly(a); |
| } |
| return false; |
| } |
| |
| bool GrGLGpu::onGetReadPixelsInfo(GrSurface* srcSurface, int width, int height, size_t rowBytes, |
| GrPixelConfig readConfig, DrawPreference* drawPreference, |
| ReadPixelTempDrawInfo* tempDrawInfo) { |
| GrPixelConfig srcConfig = srcSurface->config(); |
| |
| // These settings we will always want if a temp draw is performed. |
| tempDrawInfo->fTempSurfaceDesc.fFlags = kRenderTarget_GrSurfaceFlag; |
| tempDrawInfo->fTempSurfaceDesc.fWidth = width; |
| tempDrawInfo->fTempSurfaceDesc.fHeight = height; |
| tempDrawInfo->fTempSurfaceDesc.fSampleCnt = 0; |
| tempDrawInfo->fTempSurfaceDesc.fOrigin = kTopLeft_GrSurfaceOrigin; // no CPU y-flip for TL. |
| tempDrawInfo->fUseExactScratch = this->glCaps().partialFBOReadIsSlow(); |
| |
| // For now assume no swizzling, we may change that below. |
| tempDrawInfo->fSwizzle = GrSwizzle::RGBA(); |
| |
| // Depends on why we need/want a temp draw. Start off assuming no change, the surface we read |
| // from will be srcConfig and we will read readConfig pixels from it. |
| // Not that if we require a draw and return a non-renderable format for the temp surface the |
| // base class will fail for us. |
| tempDrawInfo->fTempSurfaceDesc.fConfig = srcConfig; |
| tempDrawInfo->fReadConfig = readConfig; |
| |
| if (requires_srgb_conversion(srcConfig, readConfig)) { |
| if (!this->readPixelsSupported(readConfig, readConfig)) { |
| return false; |
| } |
| // Draw to do srgb to linear conversion or vice versa. |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| tempDrawInfo->fTempSurfaceDesc.fConfig = readConfig; |
| tempDrawInfo->fReadConfig = readConfig; |
| return true; |
| } |
| |
| GrRenderTarget* srcAsRT = srcSurface->asRenderTarget(); |
| if (!srcAsRT) { |
| // For now keep assuming the draw is not a format transformation, just a draw to get to a |
| // RT. We may add additional transformations below. |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| } |
| if (this->glCaps().rgba8888PixelsOpsAreSlow() && kRGBA_8888_GrPixelConfig == readConfig && |
| this->readPixelsSupported(kBGRA_8888_GrPixelConfig, kBGRA_8888_GrPixelConfig)) { |
| tempDrawInfo->fTempSurfaceDesc.fConfig = kBGRA_8888_GrPixelConfig; |
| tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); |
| tempDrawInfo->fReadConfig = kBGRA_8888_GrPixelConfig; |
| ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); |
| } else if (kMesa_GrGLDriver == this->glContext().driver() && |
| GrBytesPerPixel(readConfig) == 4 && |
| GrPixelConfigSwapRAndB(readConfig) == srcConfig && |
| this->readPixelsSupported(srcSurface, srcConfig)) { |
| // Mesa 3D takes a slow path on when reading back BGRA from an RGBA surface and vice-versa. |
| // Better to do a draw with a R/B swap and then read as the original config. |
| tempDrawInfo->fTempSurfaceDesc.fConfig = srcConfig; |
| tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); |
| tempDrawInfo->fReadConfig = srcConfig; |
| ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); |
| } else if (!this->readPixelsSupported(srcSurface, readConfig)) { |
| if (readConfig == kBGRA_8888_GrPixelConfig && |
| this->glCaps().isConfigRenderable(kRGBA_8888_GrPixelConfig, false) && |
| this->readPixelsSupported(kRGBA_8888_GrPixelConfig, kRGBA_8888_GrPixelConfig)) { |
| // We're trying to read BGRA but it's not supported. If RGBA is renderable and |
| // we can read it back, then do a swizzling draw to a RGBA and read it back (which |
| // will effectively be BGRA). |
| tempDrawInfo->fTempSurfaceDesc.fConfig = kRGBA_8888_GrPixelConfig; |
| tempDrawInfo->fSwizzle = GrSwizzle::BGRA(); |
| tempDrawInfo->fReadConfig = kRGBA_8888_GrPixelConfig; |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| } else if (readConfig == kAlpha_8_GrPixelConfig) { |
| // onReadPixels implements a fallback for cases where we are want to read kAlpha_8, |
| // it's unsupported, but 32bit RGBA reads are supported. |
| // Don't attempt to do any srgb conversions since we only care about alpha. |
| GrPixelConfig cpuTempConfig = kRGBA_8888_GrPixelConfig; |
| if (GrPixelConfigIsSRGB(srcSurface->config())) { |
| cpuTempConfig = kSRGBA_8888_GrPixelConfig; |
| } |
| if (!this->readPixelsSupported(srcSurface, cpuTempConfig)) { |
| // If we can't read RGBA from the src try to draw to a kRGBA_8888 (or kSRGBA_8888) |
| // first and then onReadPixels will read that to a 32bit temporary buffer. |
| if (this->caps()->isConfigRenderable(cpuTempConfig, false)) { |
| ElevateDrawPreference(drawPreference, kRequireDraw_DrawPreference); |
| tempDrawInfo->fTempSurfaceDesc.fConfig = cpuTempConfig; |
| tempDrawInfo->fReadConfig = kAlpha_8_GrPixelConfig; |
| } else { |
| return false; |
| } |
| } else { |
| SkASSERT(tempDrawInfo->fTempSurfaceDesc.fConfig == srcConfig); |
| SkASSERT(tempDrawInfo->fReadConfig == kAlpha_8_GrPixelConfig); |
| } |
| } else { |
| return false; |
| } |
| } |
| |
| if (srcAsRT && |
| read_pixels_pays_for_y_flip(srcAsRT, this->glCaps(), width, height, readConfig, rowBytes)) { |
| ElevateDrawPreference(drawPreference, kGpuPrefersDraw_DrawPreference); |
| } |
| |
| return true; |
| } |
| |
| bool GrGLGpu::onReadPixels(GrSurface* surface, |
| int left, int top, |
| int width, int height, |
| GrPixelConfig config, |
| void* buffer, |
| size_t rowBytes) { |
| SkASSERT(surface); |
| |
| GrGLRenderTarget* renderTarget = static_cast<GrGLRenderTarget*>(surface->asRenderTarget()); |
| if (!renderTarget) { |
| return false; |
| } |
| |
| // OpenGL doesn't do sRGB <-> linear conversions when reading and writing pixels. |
| if (requires_srgb_conversion(surface->config(), config)) { |
| return false; |
| } |
| |
| // We have a special case fallback for reading eight bit alpha. We will read back all four 8 |
| // bit channels as RGBA and then extract A. |
| if (!this->readPixelsSupported(renderTarget, config)) { |
| // Don't attempt to do any srgb conversions since we only care about alpha. |
| GrPixelConfig tempConfig = kRGBA_8888_GrPixelConfig; |
| if (GrPixelConfigIsSRGB(renderTarget->config())) { |
| tempConfig = kSRGBA_8888_GrPixelConfig; |
| } |
| if (kAlpha_8_GrPixelConfig == config && |
| this->readPixelsSupported(renderTarget, tempConfig)) { |
| SkAutoTDeleteArray<uint32_t> temp(new uint32_t[width * height * 4]); |
| if (this->onReadPixels(renderTarget, left, top, width, height, tempConfig, temp.get(), |
| width*4)) { |
| uint8_t* dst = reinterpret_cast<uint8_t*>(buffer); |
| for (int j = 0; j < height; ++j) { |
| for (int i = 0; i < width; ++i) { |
| dst[j*rowBytes + i] = (0xFF000000U & temp[j*width+i]) >> 24; |
| } |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| GrGLenum externalFormat; |
| GrGLenum externalType; |
| if (!this->glCaps().getReadPixelsFormat(renderTarget->config(), config, &externalFormat, |
| &externalType)) { |
| return false; |
| } |
| bool flipY = kBottomLeft_GrSurfaceOrigin == surface->origin(); |
| |
| // resolve the render target if necessary |
| switch (renderTarget->getResolveType()) { |
| case GrGLRenderTarget::kCantResolve_ResolveType: |
| return false; |
| case GrGLRenderTarget::kAutoResolves_ResolveType: |
| this->flushRenderTarget(renderTarget, &SkIRect::EmptyIRect()); |
| break; |
| case GrGLRenderTarget::kCanResolve_ResolveType: |
| this->onResolveRenderTarget(renderTarget); |
| // we don't track the state of the READ FBO ID. |
| fStats.incRenderTargetBinds(); |
| GL_CALL(BindFramebuffer(GR_GL_READ_FRAMEBUFFER, renderTarget->textureFBOID())); |
| break; |
| default: |
| SkFAIL("Unknown resolve type"); |
| } |
| |
| const GrGLIRect& glvp = renderTarget->getViewport(); |
| |
| // the read rect is viewport-relative |
| GrGLIRect readRect; |
| readRect.setRelativeTo(glvp, left, top, width, height, renderTarget->origin()); |
| |
| size_t bytesPerPixel = GrBytesPerPixel(config); |
| size_t tightRowBytes = bytesPerPixel * width; |
| |
| size_t readDstRowBytes = tightRowBytes; |
| void* readDst = buffer; |
| |
| // determine if GL can read using the passed rowBytes or if we need |
| // a scratch buffer. |
| SkAutoSMalloc<32 * sizeof(GrColor)> scratch; |
| if (rowBytes != tightRowBytes) { |
| if (this->glCaps().packRowLengthSupport() && !(rowBytes % bytesPerPixel)) { |
| GL_CALL(PixelStorei(GR_GL_PACK_ROW_LENGTH, |
| static_cast<GrGLint>(rowBytes / bytesPerPixel))); |
| readDstRowBytes = rowBytes; |
| } else { |
| scratch.reset(tightRowBytes * height); |
| readDst = scratch.get(); |
| } |
| } |
| if (flipY && this->glCaps().packFlipYSupport()) { |
| GL_CALL(PixelStorei(GR_GL_PACK_REVERSE_ROW_ORDER, 1)); |
| } |
| GL_CALL(PixelStorei(GR_GL_PACK_ALIGNMENT, config_alignment(config))); |
| |
| GL_CALL(ReadPixels(readRect.fLeft, readRect.fBottom, |
| readRect.fWidth, readRect.fHeight, |
| externalFormat, externalType, readDst)); |
| if (readDstRowBytes != tightRowBytes) { |
| SkASSERT(this->glCaps().packRowLengthSupport()); |
| GL_CALL(PixelStorei(GR_GL_PACK_ROW_LENGTH, 0)); |
| } |
| if (flipY && this->glCaps().packFlipYSupport()) { |
| GL_CALL(PixelStorei(GR_GL_PACK_REVERSE_ROW_ORDER, 0)); |
| flipY = false; |
| } |
| |
| // now reverse the order of the rows, since GL's are bottom-to-top, but our |
| // API presents top-to-bottom. We must preserve the padding contents. Note |
| // that the above readPixels did not overwrite the padding. |
| if (readDst == buffer) { |
| SkASSERT(rowBytes == readDstRowBytes); |
| if (flipY) { |
| scratch.reset(tightRowBytes); |
| void* tmpRow = scratch.get(); |
| // flip y in-place by rows |
| const int halfY = height >> 1; |
| char* top = reinterpret_cast<char*>(buffer); |
| char* bottom = top + (height - 1) * rowBytes; |
| for (int y = 0; y < halfY; y++) { |
| memcpy(tmpRow, top, tightRowBytes); |
| memcpy(top, bottom, tightRowBytes); |
| memcpy(bottom, tmpRow, tightRowBytes); |
| top += rowBytes; |
| bottom -= rowBytes; |
| } |
| } |
| } else { |
| SkASSERT(readDst != buffer); |
| SkASSERT(rowBytes != tightRowBytes); |
| // copy from readDst to buffer while flipping y |
| // const int halfY = height >> 1; |
| const char* src = reinterpret_cast<const char*>(readDst); |
| char* dst = reinterpret_cast<char*>(buffer); |
| if (flipY) { |
| dst += (height-1) * rowBytes; |
| } |
| for (int y = 0; y < height; y++) { |
| memcpy(dst, src, tightRowBytes); |
| src += readDstRowBytes; |
| if (!flipY) { |
| dst += rowBytes; |
| } else { |
| dst -= rowBytes; |
| } |
| } |
| } |
| return true; |
| } |
| |
| void GrGLGpu::performFlushWorkaround() { |
| if (fPLSHasBeenUsed) { |
| /* There is an ARM driver bug where if we use PLS, and then draw a frame which does not |
| * use PLS, it leaves garbage all over the place. As a workaround, we use PLS in a |
| * trivial way every frame. And since we use it every frame, there's never a point at which |
| * it becomes safe to stop using this workaround once we start. |
| */ |
| this->disableScissor(); |
| // using PLS in the presence of MSAA results in GL_INVALID_OPERATION |
| this->flushHWAAState(nullptr, false, false); |
| SkASSERT(!fHWPLSEnabled); |
| SkASSERT(fMSAAEnabled != kYes_TriState); |
| GL_CALL(Enable(GR_GL_SHADER_PIXEL_LOCAL_STORAGE)); |
| this->stampRectUsingProgram(fPLSSetupProgram.fProgram, |
| SkRect::MakeXYWH(-100.0f, -100.0f, 0.01f, 0.01f), |
| fPLSSetupProgram.fPosXformUniform, |
| fPLSSetupProgram.fArrayBuffer); |
| GL_CALL(Disable(GR_GL_SHADER_PIXEL_LOCAL_STORAGE)); |
| } |
| } |
| |
| void GrGLGpu::flushRenderTarget(GrGLRenderTarget* target, const SkIRect* bounds) { |
| SkASSERT(target); |
| |
| uint32_t rtID = target->getUniqueID(); |
| if (fHWBoundRenderTargetUniqueID != rtID) { |
| fStats.incRenderTargetBinds(); |
| GL_CALL(BindFramebuffer(GR_GL_FRAMEBUFFER, target->renderFBOID())); |
| #ifdef SK_DEBUG |
| // don't do this check in Chromium -- this is causing |
| // lots of repeated command buffer flushes when the compositor is |
| // rendering with Ganesh, which is really slow; even too slow for |
| // Debug mode. |
| if (kChromium_GrGLDriver != this->glContext().driver()) { |
| GrGLenum status; |
| GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER)); |
| if (status != GR_GL_FRAMEBUFFER_COMPLETE) { |
| SkDebugf("GrGLGpu::flushRenderTarget glCheckFramebufferStatus %x\n", status); |
| } |
| } |
| #endif |
| fHWBoundRenderTargetUniqueID = rtID; |
| this->flushViewport(target->getViewport()); |
| if (this->glCaps().srgbWriteControl()) { |
| bool enableSRGBWrite = GrPixelConfigIsSRGB(target->config()); |
| if (enableSRGBWrite && kYes_TriState != fHWSRGBFramebuffer) { |
| GL_CALL(Enable(GR_GL_FRAMEBUFFER_SRGB)); |
| fHWSRGBFramebuffer = kYes_TriState; |
| } else if (!enableSRGBWrite && kNo_TriState != fHWSRGBFramebuffer) { |
| GL_CALL(Disable(GR_GL_FRAMEBUFFER_SRGB)); |
| fHWSRGBFramebuffer = kNo_TriState; |
| } |
| } |
| } |
| this->didWriteToSurface(target, bounds); |
| } |
| |
| void GrGLGpu::flushViewport(const GrGLIRect& viewport) { |
| if (fHWViewport != viewport) { |
| viewport.pushToGLViewport(this->glInterface()); |
| fHWViewport = viewport; |
| } |
| } |
| |
| void GrGLGpu::didWriteToSurface(GrSurface* surface, const SkIRect* bounds) const { |
| SkASSERT(surface); |
| // Mark any MIP chain and resolve buffer as dirty if and only if there is a non-empty bounds. |
| if (nullptr == bounds || !bounds->isEmpty()) { |
| if (GrRenderTarget* target = surface->asRenderTarget()) { |
| target->flagAsNeedingResolve(bounds); |
| } |
| if (GrTexture* texture = surface->asTexture()) { |
| texture->texturePriv().dirtyMipMaps(true); |
| } |
| } |
| } |
| |
| 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 defined(SK_BUILD_FOR_MAC) |
| #include <AGL/agl.h> |
| #elif defined(SK_BUILD_FOR_WIN32) |
| #include <gl/GL.h> |
| 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 GrGLGpu::onDraw(const DrawArgs& args, const GrNonInstancedVertices& vertices) { |
| if (!this->flushGLState(args)) { |
| return; |
| } |
| |
| GrPixelLocalStorageState plsState = args.fPrimitiveProcessor->getPixelLocalStorageState(); |
| if (!fHWPLSEnabled && plsState != |
| GrPixelLocalStorageState::kDisabled_GrPixelLocalStorageState) { |
| GL_CALL(Enable(GR_GL_SHADER_PIXEL_LOCAL_STORAGE)); |
| this->setupPixelLocalStorage(args); |
| fHWPLSEnabled = true; |
| } |
| if (plsState == GrPixelLocalStorageState::kFinish_GrPixelLocalStorageState) { |
| GrStencilSettings stencil; |
| stencil.setDisabled(); |
| this->flushStencil(stencil); |
| } |
| |
| size_t indexOffsetInBytes = 0; |
| this->setupGeometry(*args.fPrimitiveProcessor, vertices, &indexOffsetInBytes); |
| |
| SkASSERT((size_t)vertices.primitiveType() < SK_ARRAY_COUNT(gPrimitiveType2GLMode)); |
| |
| if (vertices.isIndexed()) { |
| GrGLvoid* indices = |
| reinterpret_cast<GrGLvoid*>(indexOffsetInBytes + sizeof(uint16_t) * |
| vertices.startIndex()); |
| // info.startVertex() was accounted for by setupGeometry. |
| GL_CALL(DrawElements(gPrimitiveType2GLMode[vertices.primitiveType()], |
| vertices.indexCount(), |
| GR_GL_UNSIGNED_SHORT, |
| indices)); |
| } else { |
| // Pass 0 for parameter first. We have to adjust glVertexAttribPointer() to account for |
| // startVertex in the DrawElements case. So we always rely on setupGeometry to have |
| // accounted for startVertex. |
| GL_CALL(DrawArrays(gPrimitiveType2GLMode[vertices.primitiveType()], 0, |
| vertices.vertexCount())); |
| } |
| |
| if (fHWPLSEnabled && plsState == GrPixelLocalStorageState::kFinish_GrPixelLocalStorageState) { |
| // PLS draws always involve multiple draws, finishing up with a non-PLS |
| // draw that writes to the color buffer. That draw ends up here; we wait |
| // until after it is complete to actually disable PLS. |
| GL_CALL(Disable(GR_GL_SHADER_PIXEL_LOCAL_STORAGE)); |
| fHWPLSEnabled = false; |
| this->disableScissor(); |
| } |
| |
| #if SWAP_PER_DRAW |
| glFlush(); |
| #if defined(SK_BUILD_FOR_MAC) |
| aglSwapBuffers(aglGetCurrentContext()); |
| int set_a_break_pt_here = 9; |
| aglSwapBuffers(aglGetCurrentContext()); |
| #elif defined(SK_BUILD_FOR_WIN32) |
| SwapBuf(); |
| int set_a_break_pt_here = 9; |
| SwapBuf(); |
| #endif |
| #endif |
| } |
| |
| void GrGLGpu::stampRectUsingProgram(GrGLuint program, const SkRect& bounds, GrGLint posXformUniform, |
| GrGLuint arrayBuffer) { |
| GL_CALL(UseProgram(program)); |
| this->fHWGeometryState.setVertexArrayID(this, 0); |
| |
| GrGLAttribArrayState* attribs = |
| this->fHWGeometryState.bindArrayAndBufferToDraw(this, arrayBuffer); |
| attribs->set(this, 0, arrayBuffer, kVec2f_GrVertexAttribType, 2 * sizeof(GrGLfloat), 0); |
| attribs->disableUnusedArrays(this, 0x1); |
| |
| GL_CALL(Uniform4f(posXformUniform, bounds.width(), bounds.height(), bounds.left(), |
| bounds.top())); |
| |
| GrXferProcessor::BlendInfo blendInfo; |
| blendInfo.reset(); |
| this->flushBlend(blendInfo, GrSwizzle()); |
| this->flushColorWrite(true); |
| this->flushDrawFace(GrPipelineBuilder::kBoth_DrawFace); |
| if (!fHWStencilSettings.isDisabled()) { |
| GL_CALL(Disable(GR_GL_STENCIL_TEST)); |
| } |
| GL_CALL(DrawArrays(GR_GL_TRIANGLE_STRIP, 0, 4)); |
| GL_CALL(UseProgram(fHWProgramID)); |
| if (!fHWStencilSettings.isDisabled()) { |
| GL_CALL(Enable(GR_GL_STENCIL_TEST)); |
| } |
| } |
| |
| void GrGLGpu::setupPixelLocalStorage(const DrawArgs& args) { |
| fPLSHasBeenUsed = true; |
| const SkRect& bounds = |
| static_cast<const GrPLSGeometryProcessor*>(args.fPrimitiveProcessor)->getBounds(); |
| // setup pixel local storage -- this means capturing and storing the current framebuffer color |
| // and initializing the winding counts to zero |
| GrRenderTarget* rt = args.fPipeline->getRenderTarget(); |
| SkScalar width = SkIntToScalar(rt->width()); |
| SkScalar height = SkIntToScalar(rt->height()); |
| // dst rect edges in NDC (-1 to 1) |
| // having some issues with rounding, just expand the bounds by 1 and trust the scissor to keep |
| // it contained properly |
| GrGLfloat dx0 = 2.0f * (bounds.left() - 1) / width - 1.0f; |
| GrGLfloat dx1 = 2.0f * (bounds.right() + 1) / width - 1.0f; |
| GrGLfloat dy0 = -2.0f * (bounds.top() - 1) / height + 1.0f; |
| GrGLfloat dy1 = -2.0f * (bounds.bottom() + 1) / height + 1.0f; |
| SkRect deviceBounds = SkRect::MakeXYWH(dx0, dy0, dx1 - dx0, dy1 - dy0); |
| |
| GL_CALL(Enable(GR_GL_FETCH_PER_SAMPLE_ARM)); |
| this->stampRectUsingProgram(fPLSSetupProgram.fProgram, deviceBounds, |
| fPLSSetupProgram.fPosXformUniform, fPLSSetupProgram.fArrayBuffer); |
| } |
| |
| void GrGLGpu::onResolveRenderTarget(GrRenderTarget* target) { |
| GrGLRenderTarget* rt = static_cast<GrGLRenderTarget*>(target); |
| if (rt->needsResolve()) { |
| // Some extensions automatically resolves the texture when it is read. |
| if (this->glCaps().usesMSAARenderBuffers()) { |
| SkASSERT(rt->textureFBOID() != rt->renderFBOID()); |
| fStats.incRenderTargetBinds(); |
| fStats.incRenderTargetBinds(); |
| GL_CALL(BindFramebuffer(GR_GL_READ_FRAMEBUFFER, rt->renderFBOID())); |
| GL_CALL(BindFramebuffer(GR_GL_DRAW_FRAMEBUFFER, rt->textureFBOID())); |
| // make sure we go through flushRenderTarget() since we've modified |
| // the bound DRAW FBO ID. |
| fHWBoundRenderTargetUniqueID = SK_InvalidUniqueID; |
| const GrGLIRect& vp = rt->getViewport(); |
| const SkIRect dirtyRect = rt->getResolveRect(); |
| |
| if (GrGLCaps::kES_Apple_MSFBOType == this->glCaps().msFBOType()) { |
| // Apple's extension uses the scissor as the blit bounds. |
| GrScissorState scissorState; |
| scissorState.set(dirtyRect); |
| this->flushScissor(scissorState, vp, rt->origin()); |
| GL_CALL(ResolveMultisampleFramebuffer()); |
| } else { |
| GrGLIRect r; |
| r.setRelativeTo(vp, dirtyRect.fLeft, dirtyRect.fTop, |
| dirtyRect.width(), dirtyRect.height(), target->origin()); |
| |
| int right = r.fLeft + r.fWidth; |
| int top = r.fBottom + r.fHeight; |
| |
| // BlitFrameBuffer respects the scissor, so disable it. |
| this->disableScissor(); |
| GL_CALL(BlitFramebuffer(r.fLeft, r.fBottom, right, top, |
| r.fLeft, r.fBottom, right, top, |
| GR_GL_COLOR_BUFFER_BIT, GR_GL_NEAREST)); |
| } |
| } |
| rt->flagAsResolved(); |
| } |
| } |
| |
| namespace { |
| |
| |
| GrGLenum gr_to_gl_stencil_op(GrStencilOp op) { |
| static const GrGLenum gTable[] = { |
| 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(SK_ARRAY_COUNT(gTable) == 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); |
| SkASSERT((unsigned) op < kStencilOpCount); |
| return gTable[op]; |
| } |
| |
| void set_gl_stencil(const GrGLInterface* gl, |
| const GrStencilSettings& settings, |
| GrGLenum glFace, |
| GrStencilSettings::Face grFace) { |
| GrGLenum glFunc = GrToGLStencilFunc(settings.func(grFace)); |
| GrGLenum glFailOp = gr_to_gl_stencil_op(settings.failOp(grFace)); |
| GrGLenum glPassOp = gr_to_gl_stencil_op(settings.passOp(grFace)); |
| |
| GrGLint ref = settings.funcRef(grFace); |
| GrGLint mask = settings.funcMask(grFace); |
| GrGLint writeMask = settings.writeMask(grFace); |
| |
| if (GR_GL_FRONT_AND_BACK == glFace) { |
| // we call the combined func just in case separate stencil is not |
| // supported. |
| GR_GL_CALL(gl, StencilFunc(glFunc, ref, mask)); |
| GR_GL_CALL(gl, StencilMask(writeMask)); |
| GR_GL_CALL(gl, StencilOp(glFailOp, GR_GL_KEEP, glPassOp)); |
| } else { |
| GR_GL_CALL(gl, StencilFuncSeparate(glFace, glFunc, ref, mask)); |
| GR_GL_CALL(gl, StencilMaskSeparate(glFace, writeMask)); |
| GR_GL_CALL(gl, StencilOpSeparate(glFace, glFailOp, GR_GL_KEEP, glPassOp)); |
| } |
| } |
| } |
| |
| void GrGLGpu::flushStencil(const GrStencilSettings& stencilSettings) { |
| if (fHWStencilSettings != stencilSettings) { |
| if (stencilSettings.isDisabled()) { |
| if (kNo_TriState != fHWStencilTestEnabled) { |
| GL_CALL(Disable(GR_GL_STENCIL_TEST)); |
| fHWStencilTestEnabled = kNo_TriState; |
| } |
| } else { |
| if (kYes_TriState != fHWStencilTestEnabled) { |
| GL_CALL(Enable(GR_GL_STENCIL_TEST)); |
| fHWStencilTestEnabled = kYes_TriState; |
| } |
| } |
| if (!stencilSettings.isDisabled()) { |
| if (this->caps()->twoSidedStencilSupport()) { |
| set_gl_stencil(this->glInterface(), |
| stencilSettings, |
| GR_GL_FRONT, |
| GrStencilSettings::kFront_Face); |
| set_gl_stencil(this->glInterface(), |
| stencilSettings, |
| GR_GL_BACK, |
| GrStencilSettings::kBack_Face); |
| } else { |
| set_gl_stencil(this->glInterface(), |
| stencilSettings, |
| GR_GL_FRONT_AND_BACK, |
| GrStencilSettings::kFront_Face); |
| } |
| } |
| fHWStencilSettings = stencilSettings; |
| } |
| } |
| |
| void GrGLGpu::flushHWAAState(GrRenderTarget* rt, bool useHWAA, bool stencilEnabled) { |
| // rt is only optional if useHWAA is false. |
| SkASSERT(rt || !useHWAA); |
| SkASSERT(!useHWAA || rt->isStencilBufferMultisampled()); |
| |
| if (this->glCaps().multisampleDisableSupport()) { |
| if (useHWAA) { |
| if (kYes_TriState != fMSAAEnabled) { |
| GL_CALL(Enable(GR_GL_MULTISAMPLE)); |
| fMSAAEnabled = kYes_TriState; |
| } |
| } else { |
| if (kNo_TriState != fMSAAEnabled) { |
| GL_CALL(Disable(GR_GL_MULTISAMPLE)); |
| fMSAAEnabled = kNo_TriState; |
| } |
| } |
| } |
| |
| if (0 != this->caps()->maxRasterSamples()) { |
| if (useHWAA && rt->hasMixedSamples() && !stencilEnabled) { |
| // Since stencil is disabled and we want more samples than are in the color buffer, we |
| // need to tell the rasterizer explicitly how many to run. |
| if (kYes_TriState != fHWRasterMultisampleEnabled) { |
| GL_CALL(Enable(GR_GL_RASTER_MULTISAMPLE)); |
| fHWRasterMultisampleEnabled = kYes_TriState; |
| } |
| if (rt->numStencilSamples() != fHWNumRasterSamples) { |
| SkASSERT(rt->numStencilSamples() <= this->caps()->maxRasterSamples()); |
| GL_CALL(RasterSamples(rt->numStencilSamples(), GR_GL_TRUE)); |
| fHWNumRasterSamples = rt->numStencilSamples(); |
| } |
| } else { |
| if (kNo_TriState != fHWRasterMultisampleEnabled) { |
| GL_CALL(Disable(GR_GL_RASTER_MULTISAMPLE)); |
| fHWRasterMultisampleEnabled = kNo_TriState; |
| } |
| } |
| } else { |
| SkASSERT(!useHWAA || !rt->hasMixedSamples() || stencilEnabled); |
| } |
| } |
| |
| void GrGLGpu::flushBlend(const GrXferProcessor::BlendInfo& blendInfo, const GrSwizzle& swizzle) { |
| // Any optimization to disable blending should have already been applied and |
| // tweaked the equation to "add" or "subtract", and the coeffs to (1, 0). |
| |
| GrBlendEquation equation = blendInfo.fEquation; |
| GrBlendCoeff srcCoeff = blendInfo.fSrcBlend; |
| GrBlendCoeff dstCoeff = blendInfo.fDstBlend; |
| bool blendOff = (kAdd_GrBlendEquation == equation || kSubtract_GrBlendEquation == equation) && |
| kOne_GrBlendCoeff == srcCoeff && kZero_GrBlendCoeff == dstCoeff; |
| if (blendOff) { |
| if (kNo_TriState != fHWBlendState.fEnabled) { |
| GL_CALL(Disable(GR_GL_BLEND)); |
| |
| // Workaround for the ARM KHR_blend_equation_advanced blacklist issue |
| // https://code.google.com/p/skia/issues/detail?id=3943 |
| if (kARM_GrGLVendor == this->ctxInfo().vendor() && |
| GrBlendEquationIsAdvanced(fHWBlendState.fEquation)) { |
| SkASSERT(this->caps()->advancedBlendEquationSupport()); |
| // Set to any basic blending equation. |
| GrBlendEquation blend_equation = kAdd_GrBlendEquation; |
| GL_CALL(BlendEquation(gXfermodeEquation2Blend[blend_equation])); |
| fHWBlendState.fEquation = blend_equation; |
| } |
| |
| fHWBlendState.fEnabled = kNo_TriState; |
| } |
| return; |
| } |
| |
| if (kYes_TriState != fHWBlendState.fEnabled) { |
| GL_CALL(Enable(GR_GL_BLEND)); |
| fHWBlendState.fEnabled = kYes_TriState; |
| } |
| |
| if (fHWBlendState.fEquation != equation) { |
| GL_CALL(BlendEquation(gXfermodeEquation2Blend[equation])); |
| fHWBlendState.fEquation = equation; |
| } |
| |
| if (GrBlendEquationIsAdvanced(equation)) { |
| SkASSERT(this->caps()->advancedBlendEquationSupport()); |
| // Advanced equations have no other blend state. |
| return; |
| } |
| |
| if (fHWBlendState.fSrcCoeff != srcCoeff || fHWBlendState.fDstCoeff != dstCoeff) { |
| GL_CALL(BlendFunc(gXfermodeCoeff2Blend[srcCoeff], |
| gXfermodeCoeff2Blend[dstCoeff])); |
| fHWBlendState.fSrcCoeff = srcCoeff; |
| fHWBlendState.fDstCoeff = dstCoeff; |
| } |
| |
| if ((BlendCoeffReferencesConstant(srcCoeff) || BlendCoeffReferencesConstant(dstCoeff))) { |
| GrColor blendConst = blendInfo.fBlendConstant; |
| blendConst = swizzle.applyTo(blendConst); |
| if (!fHWBlendState.fConstColorValid || fHWBlendState.fConstColor != blendConst) { |
| GrGLfloat c[4]; |
| GrColorToRGBAFloat(blendConst, c); |
| GL_CALL(BlendColor(c[0], c[1], c[2], c[3])); |
| fHWBlendState.fConstColor = blendConst; |
| fHWBlendState.fConstColorValid = true; |
| } |
| } |
| } |
| |
| static inline GrGLenum tile_to_gl_wrap(SkShader::TileMode tm) { |
| static const GrGLenum gWrapModes[] = { |
| GR_GL_CLAMP_TO_EDGE, |
| GR_GL_REPEAT, |
| GR_GL_MIRRORED_REPEAT |
| }; |
| GR_STATIC_ASSERT(SkShader::kTileModeCount == SK_ARRAY_COUNT(gWrapModes)); |
| GR_STATIC_ASSERT(0 == SkShader::kClamp_TileMode); |
| GR_STATIC_ASSERT(1 == SkShader::kRepeat_TileMode); |
| GR_STATIC_ASSERT(2 == SkShader::kMirror_TileMode); |
| return gWrapModes[tm]; |
| } |
| |
| static GrGLenum get_component_enum_from_char(char component) { |
| switch (component) { |
| case 'r': |
| return GR_GL_RED; |
| case 'g': |
| return GR_GL_GREEN; |
| case 'b': |
| return GR_GL_BLUE; |
| case 'a': |
| return GR_GL_ALPHA; |
| default: |
| SkFAIL("Unsupported component"); |
| return 0; |
| } |
| } |
| |
| /** If texture swizzling is available using tex parameters then it is preferred over mangling |
| the generated shader code. This potentially allows greater reuse of cached shaders. */ |
| static void get_tex_param_swizzle(GrPixelConfig config, |
| const GrGLCaps& caps, |
| GrGLenum* glSwizzle) { |
| const GrSwizzle& swizzle = caps.configSwizzle(config); |
| for (int i = 0; i < 4; ++i) { |
| glSwizzle[i] = get_component_enum_from_char(swizzle.c_str()[i]); |
| } |
| } |
| |
| void GrGLGpu::bindTexture(int unitIdx, const GrTextureParams& params, GrGLTexture* texture) { |
| SkASSERT(texture); |
| |
| #ifdef SK_DEBUG |
| if (!this->caps()->npotTextureTileSupport()) { |
| const bool tileX = SkShader::kClamp_TileMode != params.getTileModeX(); |
| const bool tileY = SkShader::kClamp_TileMode != params.getTileModeY(); |
| if (tileX || tileY) { |
| const int w = texture->width(); |
| const int h = texture->height(); |
| SkASSERT(SkIsPow2(w) && SkIsPow2(h)); |
| } |
| } |
| #endif |
| |
| // If we created a rt/tex and rendered to it without using a texture and now we're texturing |
| // 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*>(texture->asRenderTarget()); |
| if (texRT) { |
| this->onResolveRenderTarget(texRT); |
| } |
| |
| uint32_t textureID = texture->getUniqueID(); |
| GrGLenum target = texture->target(); |
| if (fHWBoundTextureUniqueIDs[unitIdx] != textureID) { |
| this->setTextureUnit(unitIdx); |
| GL_CALL(BindTexture(target, texture->textureID())); |
| fHWBoundTextureUniqueIDs[unitIdx] = textureID; |
| } |
| |
| ResetTimestamp timestamp; |
| const GrGLTexture::TexParams& oldTexParams = texture->getCachedTexParams(×tamp); |
| bool setAll = timestamp < this->getResetTimestamp(); |
| GrGLTexture::TexParams newTexParams; |
| |
| static GrGLenum glMinFilterModes[] = { |
| GR_GL_NEAREST, |
| GR_GL_LINEAR, |
| GR_GL_LINEAR_MIPMAP_LINEAR |
| }; |
| static GrGLenum glMagFilterModes[] = { |
| GR_GL_NEAREST, |
| GR_GL_LINEAR, |
| GR_GL_LINEAR |
| }; |
| GrTextureParams::FilterMode filterMode = params.filterMode(); |
| |
| if (GrTextureParams::kMipMap_FilterMode == filterMode) { |
| if (!this->caps()->mipMapSupport() || GrPixelConfigIsCompressed(texture->config())) { |
| filterMode = GrTextureParams::kBilerp_FilterMode; |
| } |
| } |
| |
| newTexParams.fMinFilter = glMinFilterModes[filterMode]; |
| newTexParams.fMagFilter = glMagFilterModes[filterMode]; |
| |
| if (GrTextureParams::kMipMap_FilterMode == filterMode && |
| texture->texturePriv().mipMapsAreDirty()) { |
| GL_CALL(GenerateMipmap(target)); |
| texture->texturePriv().dirtyMipMaps(false); |
| } |
| |
| newTexParams.fWrapS = tile_to_gl_wrap(params.getTileModeX()); |
| newTexParams.fWrapT = tile_to_gl_wrap(params.getTileModeY()); |
| get_tex_param_swizzle(texture->config(), this->glCaps(), newTexParams.fSwizzleRGBA); |
| if (setAll || newTexParams.fMagFilter != oldTexParams.fMagFilter) { |
| this->setTextureUnit(unitIdx); |
| GL_CALL(TexParameteri(target, GR_GL_TEXTURE_MAG_FILTER, newTexParams.fMagFilter)); |
| } |
| if (setAll || newTexParams.fMinFilter != oldTexParams.fMinFilter) { |
| this->setTextureUnit(unitIdx); |
| GL_CALL(TexParameteri(target, GR_GL_TEXTURE_MIN_FILTER, newTexParams.fMinFilter)); |
| } |
| if (setAll || newTexParams.fWrapS != oldTexParams.fWrapS) { |
| this->setTextureUnit(unitIdx); |
| GL_CALL(TexParameteri(target, GR_GL_TEXTURE_WRAP_S, newTexParams.fWrapS)); |
| } |
| if (setAll || newTexParams.fWrapT != oldTexParams.fWrapT) { |
| this->setTextureUnit(unitIdx); |
| GL_CALL(TexParameteri(target, GR_GL_TEXTURE_WRAP_T, newTexParams.fWrapT)); |
| } |
| if (this->glCaps().textureSwizzleSupport() && |
| (setAll || memcmp(newTexParams.fSwizzleRGBA, |
| oldTexParams.fSwizzleRGBA, |
| sizeof(newTexParams.fSwizzleRGBA)))) { |
| this->setTextureUnit(unitIdx); |
| if (this->glStandard() == kGLES_GrGLStandard) { |
| // ES3 added swizzle support but not GL_TEXTURE_SWIZZLE_RGBA. |
| const GrGLenum* swizzle = newTexParams.fSwizzleRGBA; |
| GL_CALL(TexParameteri(target, GR_GL_TEXTURE_SWIZZLE_R, swizzle[0])); |
| GL_CALL(TexParameteri(target, GR_GL_TEXTURE_SWIZZLE_G, swizzle[1])); |
| GL_CALL(TexParameteri(target, GR_GL_TEXTURE_SWIZZLE_B, swizzle[2])); |
| GL_CALL(TexParameteri(target, GR_GL_TEXTURE_SWIZZLE_A, swizzle[3])); |
| } else { |
| GR_STATIC_ASSERT(sizeof(newTexParams.fSwizzleRGBA[0]) == sizeof(GrGLint)); |
| const GrGLint* swizzle = reinterpret_cast<const GrGLint*>(newTexParams.fSwizzleRGBA); |
| GL_CALL(TexParameteriv(target, GR_GL_TEXTURE_SWIZZLE_RGBA, swizzle)); |
| } |
| } |
| texture->setCachedTexParams(newTexParams, this->getResetTimestamp()); |
| } |
| |
| void GrGLGpu::flushColorWrite(bool writeColor) { |
| if (!writeColor) { |
| if (kNo_TriState != fHWWriteToColor) { |
| GL_CALL(ColorMask(GR_GL_FALSE, GR_GL_FALSE, |
| GR_GL_FALSE, GR_GL_FALSE)); |
| fHWWriteToColor = kNo_TriState; |
| } |
| } else { |
| if (kYes_TriState != fHWWriteToColor) { |
| GL_CALL(ColorMask(GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE)); |
| fHWWriteToColor = kYes_TriState; |
| } |
| } |
| } |
| |
| void GrGLGpu::flushDrawFace(GrPipelineBuilder::DrawFace face) { |
| if (fHWDrawFace != face) { |
| switch (face) { |
| case GrPipelineBuilder::kCCW_DrawFace: |
| GL_CALL(Enable(GR_GL_CULL_FACE)); |
| GL_CALL(CullFace(GR_GL_BACK)); |
| break; |
| case GrPipelineBuilder::kCW_DrawFace: |
| GL_CALL(Enable(GR_GL_CULL_FACE)); |
| GL_CALL(CullFace(GR_GL_FRONT)); |
| break; |
| case GrPipelineBuilder::kBoth_DrawFace: |
| GL_CALL(Disable(GR_GL_CULL_FACE)); |
| break; |
| default: |
| SkFAIL("Unknown draw face."); |
| } |
| fHWDrawFace = face; |
| } |
| } |
| |
| void GrGLGpu::setTextureUnit(int unit) { |
| SkASSERT(unit >= 0 && unit < fHWBoundTextureUniqueIDs.count()); |
| if (unit != fHWActiveTextureUnitIdx) { |
| GL_CALL(ActiveTexture(GR_GL_TEXTURE0 + unit)); |
| fHWActiveTextureUnitIdx = unit; |
| } |
| } |
| |
| void GrGLGpu::setScratchTextureUnit() { |
| // Bind the last texture unit since it is the least likely to be used by GrGLProgram. |
| int lastUnitIdx = fHWBoundTextureUniqueIDs.count() - 1; |
| if (lastUnitIdx != fHWActiveTextureUnitIdx) { |
| GL_CALL(ActiveTexture(GR_GL_TEXTURE0 + lastUnitIdx)); |
| fHWActiveTextureUnitIdx = lastUnitIdx; |
| } |
| // clear out the this field so that if a program does use this unit it will rebind the correct |
| // texture. |
| fHWBoundTextureUniqueIDs[lastUnitIdx] = SK_InvalidUniqueID; |
| } |
| |
| // Determines whether glBlitFramebuffer could be used between src and dst. |
| static inline bool can_blit_framebuffer(const GrSurface* dst, |
| const GrSurface* src, |
| const GrGLGpu* gpu) { |
| if (gpu->glCaps().isConfigRenderable(dst->config(), dst->desc().fSampleCnt > 0) && |
| gpu->glCaps().isConfigRenderable(src->config(), src->desc().fSampleCnt > 0)) { |
| switch (gpu->glCaps().blitFramebufferSupport()) { |
| case GrGLCaps::kNone_BlitFramebufferSupport: |
| return false; |
| case GrGLCaps::kNoScalingNoMirroring_BlitFramebufferSupport: |
| // Our copy surface doesn't support scaling so just check for mirroring. |
| if (dst->origin() != src->origin()) { |
| return false; |
| } |
| break; |
| case GrGLCaps::kFull_BlitFramebufferSupport: |
| break; |
| } |
| // ES3 doesn't allow framebuffer blits when the src has MSAA and the configs don't match |
| // or the rects are not the same (not just the same size but have the same edges). |
| if (GrGLCaps::kES_3_0_MSFBOType == gpu->glCaps().msFBOType() && |
| (src->desc().fSampleCnt > 0 || src->config() != dst->config())) { |
| return false; |
| } |
| const GrGLTexture* dstTex = static_cast<const GrGLTexture*>(dst->asTexture()); |
| if (dstTex && dstTex->target() != GR_GL_TEXTURE_2D) { |
| return false; |
| } |
| const GrGLTexture* srcTex = static_cast<const GrGLTexture*>(dst->asTexture()); |
| if (srcTex && srcTex->target() != GR_GL_TEXTURE_2D) { |
| return false; |
| } |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| static inline bool can_copy_texsubimage(const GrSurface* dst, |
| const GrSurface* src, |
| const GrGLGpu* gpu) { |
| // Table 3.9 of the ES2 spec indicates the supported formats with CopyTexSubImage |
| // and BGRA isn't in the spec. There doesn't appear to be any extension that adds it. Perhaps |
| // many drivers would allow it to work, but ANGLE does not. |
| if (kGLES_GrGLStandard == gpu->glStandard() && gpu->glCaps().bgraIsInternalFormat() && |
| (kBGRA_8888_GrPixelConfig == dst->config() || kBGRA_8888_GrPixelConfig == src->config())) { |
| return false; |
| } |
| const GrGLRenderTarget* dstRT = static_cast<const GrGLRenderTarget*>(dst->asRenderTarget()); |
| // If dst is multisampled (and uses an extension where there is a separate MSAA renderbuffer) |
| // then we don't want to copy to the texture but to the MSAA buffer. |
| if (dstRT && dstRT->renderFBOID() != dstRT->textureFBOID()) { |
| return false; |
| } |
| const GrGLRenderTarget* srcRT = static_cast<const GrGLRenderTarget*>(src->asRenderTarget()); |
| // If the src is multisampled (and uses an extension where there is a separate MSAA |
| // renderbuffer) then it is an invalid operation to call CopyTexSubImage |
| if (srcRT && srcRT->renderFBOID() != srcRT->textureFBOID()) { |
| return false; |
| } |
| |
| const GrGLTexture* dstTex = static_cast<const GrGLTexture*>(dst->asTexture()); |
| // CopyTex(Sub)Image writes to a texture and we have no way of dynamically wrapping a RT in a |
| // texture. |
| if (!dstTex) { |
| return false; |
| } |
| |
| const GrGLTexture* srcTex = static_cast<const GrGLTexture*>(src->asTexture()); |
| |
| // Check that we could wrap the source in an FBO, that the dst is TEXTURE_2D, that no mirroring |
| // is required. |
| if (gpu->glCaps().isConfigRenderable(src->config(), src->desc().fSampleCnt > 0) && |
| !GrPixelConfigIsCompressed(src->config()) && |
| (!srcTex || srcTex->target() == GR_GL_TEXTURE_2D) && |
| dstTex->target() == GR_GL_TEXTURE_2D && |
| dst->origin() == src->origin()) { |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| // If a temporary FBO was created, its non-zero ID is returned. The viewport that the copy rect is |
| // relative to is output. |
| void GrGLGpu::bindSurfaceFBOForCopy(GrSurface* surface, GrGLenum fboTarget, GrGLIRect* viewport, |
| TempFBOTarget tempFBOTarget) { |
| GrGLRenderTarget* rt = static_cast<GrGLRenderTarget*>(surface->asRenderTarget()); |
| if (!rt) { |
| SkASSERT(surface->asTexture()); |
| GrGLuint texID = static_cast<GrGLTexture*>(surface->asTexture())->textureID(); |
| GrGLenum target = static_cast<GrGLTexture*>(surface->asTexture())->target(); |
| GrGLuint* tempFBOID; |
| tempFBOID = kSrc_TempFBOTarget == tempFBOTarget ? &fTempSrcFBOID : &fTempDstFBOID; |
| |
| if (0 == *tempFBOID) { |
| GR_GL_CALL(this->glInterface(), GenFramebuffers(1, tempFBOID)); |
| } |
| |
| fStats.incRenderTargetBinds(); |
| GR_GL_CALL(this->glInterface(), BindFramebuffer(fboTarget, *tempFBOID)); |
| GR_GL_CALL(this->glInterface(), FramebufferTexture2D(fboTarget, |
| GR_GL_COLOR_ATTACHMENT0, |
| target, |
| texID, |
| 0)); |
| viewport->fLeft = 0; |
| viewport->fBottom = 0; |
| viewport->fWidth = surface->width(); |
| viewport->fHeight = surface->height(); |
| } else { |
| fStats.incRenderTargetBinds(); |
| GR_GL_CALL(this->glInterface(), BindFramebuffer(fboTarget, rt->renderFBOID())); |
| *viewport = rt->getViewport(); |
| } |
| } |
| |
| void GrGLGpu::unbindTextureFBOForCopy(GrGLenum fboTarget, GrSurface* surface) { |
| // bindSurfaceFBOForCopy temporarily binds textures that are not render targets to |
| if (!surface->asRenderTarget()) { |
| SkASSERT(surface->asTexture()); |
| GrGLenum textureTarget = static_cast<GrGLTexture*>(surface->asTexture())->target(); |
| GR_GL_CALL(this->glInterface(), FramebufferTexture2D(fboTarget, |
| GR_GL_COLOR_ATTACHMENT0, |
| textureTarget, |
| 0, |
| 0)); |
| } |
| } |
| |
| bool GrGLGpu::initCopySurfaceDstDesc(const GrSurface* src, GrSurfaceDesc* desc) const { |
| // If the src is a texture, we can implement the blit as a draw assuming the config is |
| // renderable. |
| if (src->asTexture() && this->caps()->isConfigRenderable(src->config(), false)) { |
| desc->fOrigin = kDefault_GrSurfaceOrigin; |
| desc->fFlags = kRenderTarget_GrSurfaceFlag; |
| desc->fConfig = src->config(); |
| return true; |
| } |
| |
| const GrGLTexture* srcTexture = static_cast<const GrGLTexture*>(src->asTexture()); |
| if (srcTexture && srcTexture->target() != GR_GL_TEXTURE_2D) { |
| // Not supported for FBO blit or CopyTexSubImage |
| return false; |
| } |
| |
| // We look for opportunities to use CopyTexSubImage, or fbo blit. If neither are |
| // possible and we return false to fallback to creating a render target dst for render-to- |
| // texture. This code prefers CopyTexSubImage to fbo blit and avoids triggering temporary fbo |
| // creation. It isn't clear that avoiding temporary fbo creation is actually optimal. |
| |
| // Check for format issues with glCopyTexSubImage2D |
| if (kGLES_GrGLStandard == this->glStandard() && this->glCaps().bgraIsInternalFormat() && |
| kBGRA_8888_GrPixelConfig == src->config()) { |
| // glCopyTexSubImage2D doesn't work with this config. If the bgra can be used with fbo blit |
| // then we set up for that, otherwise fail. |
| if (this->caps()->isConfigRenderable(kBGRA_8888_GrPixelConfig, false)) { |
| desc->fOrigin = kDefault_GrSurfaceOrigin; |
| desc->fFlags = kRenderTarget_GrSurfaceFlag; |
| desc->fConfig = kBGRA_8888_GrPixelConfig; |
| return true; |
| } |
| return false; |
| } else if (nullptr == src->asRenderTarget()) { |
| // CopyTexSubImage2D or fbo blit would require creating a temp fbo for the src. |
| return false; |
| } |
| |
| const GrGLRenderTarget* srcRT = static_cast<const GrGLRenderTarget*>(src->asRenderTarget()); |
| if (srcRT && srcRT->renderFBOID() != srcRT->textureFBOID()) { |
| // It's illegal to call CopyTexSubImage2D on a MSAA renderbuffer. Set up for FBO blit or |
| // fail. |
| if (this->caps()->isConfigRenderable(src->config(), false)) { |
| desc->fOrigin = kDefault_GrSurfaceOrigin; |
| desc->fFlags = kRenderTarget_GrSurfaceFlag; |
| desc->fConfig = src->config(); |
| return true; |
| } |
| return false; |
| } |
| |
| // We'll do a CopyTexSubImage. Make the dst a plain old texture. |
| desc->fConfig = src->config(); |
| desc->fOrigin = src->origin(); |
| desc->fFlags = kNone_GrSurfaceFlags; |
| return true; |
| } |
| |
| bool GrGLGpu::onCopySurface(GrSurface* dst, |
| GrSurface* src, |
| const SkIRect& srcRect, |
| const SkIPoint& dstPoint) { |
| // None of our copy methods can handle a swizzle. TODO: Make copySurfaceAsDraw handle the |
| // swizzle. |
| if (this->glCaps().glslCaps()->configOutputSwizzle(src->config()) != |
| this->glCaps().glslCaps()->configOutputSwizzle(dst->config())) { |
| return false; |
| } |
| // Don't prefer copying as a draw if the dst doesn't already have a FBO object. |
| bool preferCopy = SkToBool(dst->asRenderTarget()); |
| if (preferCopy && src->asTexture()) { |
| this->copySurfaceAsDraw(dst, src, srcRect, dstPoint); |
| return true; |
| } |
| |
| if (can_copy_texsubimage(dst, src, this)) { |
| this->copySurfaceAsCopyTexSubImage(dst, src, srcRect, dstPoint); |
| return true; |
| } |
| |
| if (can_blit_framebuffer(dst, src, this)) { |
| return this->copySurfaceAsBlitFramebuffer(dst, src, srcRect, dstPoint); |
| } |
| |
| if (!preferCopy && src->asTexture()) { |
| this->copySurfaceAsDraw(dst, src, srcRect, dstPoint); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| void GrGLGpu::createCopyPrograms() { |
| for (size_t i = 0; i < SK_ARRAY_COUNT(fCopyPrograms); ++i) { |
| fCopyPrograms[i].fProgram = 0; |
| } |
| const GrGLSLCaps* glslCaps = this->glCaps().glslCaps(); |
| const char* version = glslCaps->versionDeclString(); |
| static const GrSLType kSamplerTypes[3] = { kSampler2D_GrSLType, kSamplerExternal_GrSLType, |
| kSampler2DRect_GrSLType }; |
| SkASSERT(3 == SK_ARRAY_COUNT(fCopyPrograms)); |
| for (int i = 0; i < 3; ++i) { |
| if (kSamplerExternal_GrSLType == kSamplerTypes[i] && |
| !this->glCaps().externalTextureSupport()) { |
| continue; |
| } |
| if (kSampler2DRect_GrSLType == kSamplerTypes[i] && |
| !this->glCaps().rectangleTextureSupport()) { |
| continue; |
| } |
| GrGLSLShaderVar aVertex("a_vertex", kVec2f_GrSLType, GrShaderVar::kAttribute_TypeModifier); |
| GrGLSLShaderVar uTexCoordXform("u_texCoordXform", kVec4f_GrSLType, |
| GrShaderVar::kUniform_TypeModifier); |
| GrGLSLShaderVar uPosXform("u_posXform", kVec4f_GrSLType, |
| GrShaderVar::kUniform_TypeModifier); |
| GrGLSLShaderVar uTexture("u_texture", kSamplerTypes[i], |
| GrShaderVar::kUniform_TypeModifier); |
| GrGLSLShaderVar vTexCoord("v_texCoord", kVec2f_GrSLType, |
| GrShaderVar::kVaryingOut_TypeModifier); |
| GrGLSLShaderVar oFragColor("o_FragColor", kVec4f_GrSLType, |
| GrShaderVar::kOut_TypeModifier); |
| |
| SkString vshaderTxt(version); |
| if (glslCaps->noperspectiveInterpolationSupport()) { |
| if (const char* extension = glslCaps->noperspectiveInterpolationExtensionString()) { |
| vshaderTxt.appendf("#extension %s : require\n", extension); |
| } |
| vTexCoord.addModifier("noperspective"); |
| } |
| |
| aVertex.appendDecl(glslCaps, &vshaderTxt); |
| vshaderTxt.append(";"); |
| uTexCoordXform.appendDecl(glslCaps, &vshaderTxt); |
| vshaderTxt.append(";"); |
| uPosXform.appendDecl(glslCaps, &vshaderTxt); |
| vshaderTxt.append(";"); |
| vTexCoord.appendDecl(glslCaps, &vshaderTxt); |
| vshaderTxt.append(";"); |
| |
| vshaderTxt.append( |
| "// Copy Program VS\n" |
| "void main() {" |
| " v_texCoord = a_vertex.xy * u_texCoordXform.xy + u_texCoordXform.zw;" |
| " gl_Position.xy = a_vertex * u_posXform.xy + u_posXform.zw;" |
| " gl_Position.zw = vec2(0, 1);" |
| "}" |
| ); |
| |
| SkString fshaderTxt(version); |
| if (glslCaps->noperspectiveInterpolationSupport()) { |
| if (const char* extension = glslCaps->noperspectiveInterpolationExtensionString()) { |
| fshaderTxt.appendf("#extension %s : require\n", extension); |
| } |
| } |
| if (kSamplerTypes[i] == kSamplerExternal_GrSLType) { |
| fshaderTxt.appendf("#extension %s : require\n", |
| glslCaps->externalTextureExtensionString()); |
| } |
| GrGLSLAppendDefaultFloatPrecisionDeclaration(kDefault_GrSLPrecision, *glslCaps, |
| &fshaderTxt); |
| vTexCoord.setTypeModifier(GrShaderVar::kVaryingIn_TypeModifier); |
| vTexCoord.appendDecl(glslCaps, &fshaderTxt); |
| fshaderTxt.append(";"); |
| uTexture.appendDecl(glslCaps, &fshaderTxt); |
| fshaderTxt.append(";"); |
| const char* fsOutName; |
| if (glslCaps->mustDeclareFragmentShaderOutput()) { |
| oFragColor.appendDecl(glslCaps, &fshaderTxt); |
| fshaderTxt.append(";"); |
| fsOutName = oFragColor.c_str(); |
| } else { |
| fsOutName = "gl_FragColor"; |
| } |
| fshaderTxt.appendf( |
| "// Copy Program FS\n" |
| "void main() {" |
| " %s = %s(u_texture, v_texCoord);" |
| "}", |
| fsOutName, |
| GrGLSLTexture2DFunctionName(kVec2f_GrSLType, kSamplerTypes[i], this->glslGeneration()) |
| ); |
| |
| GL_CALL_RET(fCopyPrograms[i].fProgram, CreateProgram()); |
| const char* str; |
| GrGLint length; |
| |
| str = vshaderTxt.c_str(); |
| length = SkToInt(vshaderTxt.size()); |
| GrGLuint vshader = GrGLCompileAndAttachShader(*fGLContext, fCopyPrograms[i].fProgram, |
| GR_GL_VERTEX_SHADER, &str, &length, 1, |
| &fStats); |
| |
| str = fshaderTxt.c_str(); |
| length = SkToInt(fshaderTxt.size()); |
| GrGLuint fshader = GrGLCompileAndAttachShader(*fGLContext, fCopyPrograms[i].fProgram, |
| GR_GL_FRAGMENT_SHADER, &str, &length, 1, |
| &fStats); |
| |
| GL_CALL(LinkProgram(fCopyPrograms[i].fProgram)); |
| |
| GL_CALL_RET(fCopyPrograms[i].fTextureUniform, |
| GetUniformLocation(fCopyPrograms[i].fProgram, "u_texture")); |
| GL_CALL_RET(fCopyPrograms[i].fPosXformUniform, |
| GetUniformLocation(fCopyPrograms[i].fProgram, "u_posXform")); |
| GL_CALL_RET(fCopyPrograms[i].fTexCoordXformUniform, |
| GetUniformLocation(fCopyPrograms[i].fProgram, "u_texCoordXform")); |
| |
| GL_CALL(BindAttribLocation(fCopyPrograms[i].fProgram, 0, "a_vertex")); |
| |
| GL_CALL(DeleteShader(vshader)); |
| GL_CALL(DeleteShader(fshader)); |
| } |
| fCopyProgramArrayBuffer = 0; |
| GL_CALL(GenBuffers(1, &fCopyProgramArrayBuffer)); |
| fHWGeometryState.setVertexBufferID(this, fCopyProgramArrayBuffer); |
| static const GrGLfloat vdata[] = { |
| 0, 0, |
| 0, 1, |
| 1, 0, |
| 1, 1 |
| }; |
| GL_ALLOC_CALL(this->glInterface(), |
| BufferData(GR_GL_ARRAY_BUFFER, |
| (GrGLsizeiptr) sizeof(vdata), |
| vdata, // data ptr |
| GR_GL_STATIC_DRAW)); |
| } |
| |
| void GrGLGpu::createWireRectProgram() { |
| SkASSERT(!fWireRectProgram.fProgram); |
| GrGLSLShaderVar uColor("u_color", kVec4f_GrSLType, GrShaderVar::kUniform_TypeModifier); |
| GrGLSLShaderVar uRect("u_rect", kVec4f_GrSLType, GrShaderVar::kUniform_TypeModifier); |
| GrGLSLShaderVar aVertex("a_vertex", kVec2f_GrSLType, GrShaderVar::kAttribute_TypeModifier); |
| const char* version = this->glCaps().glslCaps()->versionDeclString(); |
| |
| // The rect uniform specifies the rectangle in NDC space as a vec4 (left,top,right,bottom). The |
| // program is used with a vbo containing the unit square. Vertices are computed from the rect |
| // uniform using the 4 vbo vertices. |
| SkString vshaderTxt(version); |
| aVertex.appendDecl(this->glCaps().glslCaps(), &vshaderTxt); |
| vshaderTxt.append(";"); |
| uRect.appendDecl(this->glCaps().glslCaps(), &vshaderTxt); |
| vshaderTxt.append(";"); |
| vshaderTxt.append( |
| "// Wire Rect Program VS\n" |
| "void main() {" |
| " gl_Position.x = u_rect.x + a_vertex.x * (u_rect.z - u_rect.x);" |
| " gl_Position.y = u_rect.y + a_vertex.y * (u_rect.w - u_rect.y);" |
| " gl_Position.zw = vec2(0, 1);" |
| "}" |
| ); |
| |
| GrGLSLShaderVar oFragColor("o_FragColor", kVec4f_GrSLType, GrShaderVar::kOut_TypeModifier); |
| |
| SkString fshaderTxt(version); |
| GrGLSLAppendDefaultFloatPrecisionDeclaration(kDefault_GrSLPrecision, |
| *this->glCaps().glslCaps(), |
| &fshaderTxt); |
| uColor.appendDecl(this->glCaps().glslCaps(), &fshaderTxt); |
| fshaderTxt.append(";"); |
| const char* fsOutName; |
| if (this->glCaps().glslCaps()->mustDeclareFragmentShaderOutput()) { |
| oFragColor.appendDecl(this->glCaps().glslCaps(), &fshaderTxt); |
| fshaderTxt.append(";"); |
| fsOutName = oFragColor.c_str(); |
| } else { |
| fsOutName = "gl_FragColor"; |
| } |
| fshaderTxt.appendf( |
| "// Write Rect Program FS\n" |
| "void main() {" |
| " %s = %s;" |
| "}", |
| fsOutName, |
| uColor.c_str() |
| ); |
| |
| GL_CALL_RET(fWireRectProgram.fProgram, CreateProgram()); |
| const char* str; |
| GrGLint length; |
| |
| str = vshaderTxt.c_str(); |
| length = SkToInt(vshaderTxt.size()); |
| GrGLuint vshader = GrGLCompileAndAttachShader(*fGLContext, fWireRectProgram.fProgram, |
| GR_GL_VERTEX_SHADER, &str, &length, 1, |
| &fStats); |
| |
| str = fshaderTxt.c_str(); |
| length = SkToInt(fshaderTxt.size()); |
| GrGLuint fshader = GrGLCompileAndAttachShader(*fGLContext, fWireRectProgram.fProgram, |
| GR_GL_FRAGMENT_SHADER, &str, &length, 1, |
| &fStats); |
| |
| GL_CALL(LinkProgram(fWireRectProgram.fProgram)); |
| |
| GL_CALL_RET(fWireRectProgram.fColorUniform, |
| GetUniformLocation(fWireRectProgram.fProgram, "u_color")); |
| GL_CALL_RET(fWireRectProgram.fRectUniform, |
| GetUniformLocation(fWireRectProgram.fProgram, "u_rect")); |
| GL_CALL(BindAttribLocation(fWireRectProgram.fProgram, 0, "a_vertex")); |
| |
| GL_CALL(DeleteShader(vshader)); |
| GL_CALL(DeleteShader(fshader)); |
| GL_CALL(GenBuffers(1, &fWireRectArrayBuffer)); |
| fHWGeometryState.setVertexBufferID(this, fWireRectArrayBuffer); |
| static const GrGLfloat vdata[] = { |
| 0, 0, |
| 0, 1, |
| 1, 1, |
| 1, 0, |
| }; |
| GL_ALLOC_CALL(this->glInterface(), |
| BufferData(GR_GL_ARRAY_BUFFER, |
| (GrGLsizeiptr) sizeof(vdata), |
| vdata, // data ptr |
| GR_GL_STATIC_DRAW)); |
| } |
| |
| void GrGLGpu::drawDebugWireRect(GrRenderTarget* rt, const SkIRect& rect, GrColor color) { |
| // TODO: This should swizzle the output to match dst's config, though it is a debugging |
| // visualization. |
| |
| this->handleDirtyContext(); |
| if (!fWireRectProgram.fProgram) { |
| this->createWireRectProgram(); |
| } |
| |
| int w = rt->width(); |
| int h = rt->height(); |
| |
| // Compute the edges of the rectangle (top,left,right,bottom) in NDC space. Must consider |
| // whether the render target is flipped or not. |
| GrGLfloat edges[4]; |
| edges[0] = SkIntToScalar(rect.fLeft) + 0.5f; |
| edges[2] = SkIntToScalar(rect.fRight) - 0.5f; |
| if (kBottomLeft_GrSurfaceOrigin == rt->origin()) { |
| edges[1] = h - (SkIntToScalar(rect.fTop) + 0.5f); |
| edges[3] = h - (SkIntToScalar(rect.fBottom) - 0.5f); |
| } else { |
| edges[1] = SkIntToScalar(rect.fTop) + 0.5f; |
| edges[3] = SkIntToScalar(rect.fBottom) - 0.5f; |
| } |
| edges[0] = 2 * edges[0] / w - 1.0f; |
| edges[1] = 2 * edges[1] / h - 1.0f; |
| edges[2] = 2 * edges[2] / w - 1.0f; |
| edges[3] = 2 * edges[3] / h - 1.0f; |
| |
| GrGLfloat channels[4]; |
| static const GrGLfloat scale255 = 1.f / 255.f; |
| channels[0] = GrColorUnpackR(color) * scale255; |
| channels[1] = GrColorUnpackG(color) * scale255; |
| channels[2] = GrColorUnpackB(color) * scale255; |
| channels[3] = GrColorUnpackA(color) * scale255; |
| |
| GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(rt->asRenderTarget()); |
| this->flushRenderTarget(glRT, &rect); |
| |
| GL_CALL(UseProgram(fWireRectProgram.fProgram)); |
| fHWProgramID = fWireRectProgram.fProgram; |
| |
| fHWGeometryState.setVertexArrayID(this, 0); |
| |
| GrGLAttribArrayState* attribs = |
| fHWGeometryState.bindArrayAndBufferToDraw(this, fWireRectArrayBuffer); |
| attribs->set(this, 0, fWireRectArrayBuffer, kVec2f_GrVertexAttribType, 2 * sizeof(GrGLfloat), |
| 0); |
| attribs->disableUnusedArrays(this, 0x1); |
| |
| GL_CALL(Uniform4fv(fWireRectProgram.fRectUniform, 1, edges)); |
| GL_CALL(Uniform4fv(fWireRectProgram.fColorUniform, 1, channels)); |
| |
| GrXferProcessor::BlendInfo blendInfo; |
| blendInfo.reset(); |
| this->flushBlend(blendInfo, GrSwizzle::RGBA()); |
| this->flushColorWrite(true); |
| this->flushDrawFace(GrPipelineBuilder::kBoth_DrawFace); |
| this->flushHWAAState(glRT, false, false); |
| this->disableScissor(); |
| GrStencilSettings stencil; |
| stencil.setDisabled(); |
| this->flushStencil(stencil); |
| |
| GL_CALL(DrawArrays(GR_GL_LINE_LOOP, 0, 4)); |
| } |
| |
| |
| void GrGLGpu::copySurfaceAsDraw(GrSurface* dst, |
| GrSurface* src, |
| const SkIRect& srcRect, |
| const SkIPoint& dstPoint) { |
| int w = srcRect.width(); |
| int h = srcRect.height(); |
| |
| GrGLTexture* srcTex = static_cast<GrGLTexture*>(src->asTexture()); |
| GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kNone_FilterMode); |
| this->bindTexture(0, params, srcTex); |
| |
| GrGLIRect dstVP; |
| this->bindSurfaceFBOForCopy(dst, GR_GL_FRAMEBUFFER, &dstVP, kDst_TempFBOTarget); |
| this->flushViewport(dstVP); |
| fHWBoundRenderTargetUniqueID = SK_InvalidUniqueID; |
| |
| SkIRect dstRect = SkIRect::MakeXYWH(dstPoint.fX, dstPoint.fY, w, h); |
| |
| int progIdx = TextureTargetToCopyProgramIdx(srcTex->target()); |
| |
| GL_CALL(UseProgram(fCopyPrograms[progIdx].fProgram)); |
| fHWProgramID = fCopyPrograms[progIdx].fProgram; |
| |
| fHWGeometryState.setVertexArrayID(this, 0); |
| |
| GrGLAttribArrayState* attribs = |
| fHWGeometryState.bindArrayAndBufferToDraw(this, fCopyProgramArrayBuffer); |
| attribs->set(this, 0, fCopyProgramArrayBuffer, kVec2f_GrVertexAttribType, 2 * sizeof(GrGLfloat), |
| 0); |
| attribs->disableUnusedArrays(this, 0x1); |
| |
| // dst rect edges in NDC (-1 to 1) |
| int dw = dst->width(); |
| int dh = dst->height(); |
| GrGLfloat dx0 = 2.f * dstPoint.fX / dw - 1.f; |
| GrGLfloat dx1 = 2.f * (dstPoint.fX + w) / dw - 1.f; |
| GrGLfloat dy0 = 2.f * dstPoint.fY / dh - 1.f; |
| GrGLfloat dy1 = 2.f * (dstPoint.fY + h) / dh - 1.f; |
| if (kBottomLeft_GrSurfaceOrigin == dst->origin()) { |
| dy0 = -dy0; |
| dy1 = -dy1; |
| } |
| |
| GrGLfloat sx0 = (GrGLfloat)srcRect.fLeft; |
| GrGLfloat sx1 = (GrGLfloat)(srcRect.fLeft + w); |
| GrGLfloat sy0 = (GrGLfloat)srcRect.fTop; |
| GrGLfloat sy1 = (GrGLfloat)(srcRect.fTop + h); |
| int sh = src->height(); |
| if (kBottomLeft_GrSurfaceOrigin == src->origin()) { |
| sy0 = sh - sy0; |
| sy1 = sh - sy1; |
| } |
| // src rect edges in normalized texture space (0 to 1) unless we're using a RECTANGLE texture. |
| GrGLenum srcTarget = srcTex->target(); |
| if (GR_GL_TEXTURE_RECTANGLE != srcTarget) { |
| int sw = src->width(); |
| sx0 /= sw; |
| sx1 /= sw; |
| sy0 /= sh; |
| sy1 /= sh; |
| } |
| |
| GL_CALL(Uniform4f(fCopyPrograms[progIdx].fPosXformUniform, dx1 - dx0, dy1 - dy0, dx0, dy0)); |
| GL_CALL(Uniform4f(fCopyPrograms[progIdx].fTexCoordXformUniform, |
| sx1 - sx0, sy1 - sy0, sx0, sy0)); |
| GL_CALL(Uniform1i(fCopyPrograms[progIdx].fTextureUniform, 0)); |
| |
| GrXferProcessor::BlendInfo blendInfo; |
| blendInfo.reset(); |
| this->flushBlend(blendInfo, GrSwizzle::RGBA()); |
| this->flushColorWrite(true); |
| this->flushDrawFace(GrPipelineBuilder::kBoth_DrawFace); |
| this->flushHWAAState(nullptr, false, false); |
| this->disableScissor(); |
| GrStencilSettings stencil; |
| stencil.setDisabled(); |
| this->flushStencil(stencil); |
| |
| GL_CALL(DrawArrays(GR_GL_TRIANGLE_STRIP, 0, 4)); |
| this->unbindTextureFBOForCopy(GR_GL_FRAMEBUFFER, dst); |
| this->didWriteToSurface(dst, &dstRect); |
| |
| } |
| |
| void GrGLGpu::copySurfaceAsCopyTexSubImage(GrSurface* dst, |
| GrSurface* src, |
| const SkIRect& srcRect, |
| const SkIPoint& dstPoint) { |
| SkASSERT(can_copy_texsubimage(dst, src, this)); |
| GrGLIRect srcVP; |
| this->bindSurfaceFBOForCopy(src, GR_GL_FRAMEBUFFER, &srcVP, kSrc_TempFBOTarget); |
| GrGLTexture* dstTex = static_cast<GrGLTexture *>(dst->asTexture()); |
| SkASSERT(dstTex); |
| // We modified the bound FBO |
| fHWBoundRenderTargetUniqueID = SK_InvalidUniqueID; |
| GrGLIRect srcGLRect; |
| srcGLRect.setRelativeTo(srcVP, |
| srcRect.fLeft, |
| srcRect.fTop, |
| srcRect.width(), |
| srcRect.height(), |
| src->origin()); |
| |
| this->setScratchTextureUnit(); |
| GL_CALL(BindTexture(dstTex->target(), dstTex->textureID())); |
| GrGLint dstY; |
| if (kBottomLeft_GrSurfaceOrigin == dst->origin()) { |
| dstY = dst->height() - (dstPoint.fY + srcGLRect.fHeight); |
| } else { |
| dstY = dstPoint.fY; |
| } |
| GL_CALL(CopyTexSubImage2D(dstTex->target(), 0, |
| dstPoint.fX, dstY, |
| srcGLRect.fLeft, srcGLRect.fBottom, |
| srcGLRect.fWidth, srcGLRect.fHeight)); |
| this->unbindTextureFBOForCopy(GR_GL_FRAMEBUFFER, src); |
| SkIRect dstRect = SkIRect::MakeXYWH(dstPoint.fX, dstPoint.fY, |
| srcRect.width(), srcRect.height()); |
| this->didWriteToSurface(dst, &dstRect); |
| } |
| |
| bool GrGLGpu::copySurfaceAsBlitFramebuffer(GrSurface* dst, |
| GrSurface* src, |
| const SkIRect& srcRect, |
| const SkIPoint& dstPoint) { |
| SkASSERT(can_blit_framebuffer(dst, src, this)); |
| SkIRect dstRect = SkIRect::MakeXYWH(dstPoint.fX, dstPoint.fY, |
| srcRect.width(), srcRect.height()); |
| if (dst == src) { |
| if (SkIRect::IntersectsNoEmptyCheck(dstRect, srcRect)) { |
| return false; |
| } |
| } |
| |
| GrGLIRect dstVP; |
| GrGLIRect srcVP; |
| this->bindSurfaceFBOForCopy(dst, GR_GL_DRAW_FRAMEBUFFER, &dstVP, kDst_TempFBOTarget); |
| this->bindSurfaceFBOForCopy(src, GR_GL_READ_FRAMEBUFFER, &srcVP, kSrc_TempFBOTarget); |
| // We modified the bound FBO |
| fHWBoundRenderTargetUniqueID = SK_InvalidUniqueID; |
| GrGLIRect srcGLRect; |
| GrGLIRect dstGLRect; |
| srcGLRect.setRelativeTo(srcVP, |
| srcRect.fLeft, |
| srcRect.fTop, |
| srcRect.width(), |
| srcRect.height(), |
| src->origin()); |
| dstGLRect.setRelativeTo(dstVP, |
| dstRect.fLeft, |
| dstRect.fTop, |
| dstRect.width(), |
| dstRect.height(), |
| dst->origin()); |
| |
| // BlitFrameBuffer respects the scissor, so disable it. |
| this->disableScissor(); |
| |
| GrGLint srcY0; |
| GrGLint srcY1; |
| // Does the blit need to y-mirror or not? |
| if (src->origin() == dst->origin()) { |
| srcY0 = srcGLRect.fBottom; |
| srcY1 = srcGLRect.fBottom + srcGLRect.fHeight; |
| } else { |
| srcY0 = srcGLRect.fBottom + srcGLRect.fHeight; |
| srcY1 = srcGLRect.fBottom; |
| } |
| GL_CALL(BlitFramebuffer(srcGLRect.fLeft, |
| srcY0, |
| srcGLRect.fLeft + srcGLRect.fWidth, |
| srcY1, |
| dstGLRect.fLeft, |
| dstGLRect.fBottom, |
| dstGLRect.fLeft + dstGLRect.fWidth, |
| dstGLRect.fBottom + dstGLRect.fHeight, |
| GR_GL_COLOR_BUFFER_BIT, GR_GL_NEAREST)); |
| this->unbindTextureFBOForCopy(GR_GL_DRAW_FRAMEBUFFER, dst); |
| this->unbindTextureFBOForCopy(GR_GL_READ_FRAMEBUFFER, src); |
| this->didWriteToSurface(dst, &dstRect); |
| return true; |
| } |
| |
| void GrGLGpu::xferBarrier(GrRenderTarget* rt, GrXferBarrierType type) { |
| SkASSERT(type); |
| switch (type) { |
| case kTexture_GrXferBarrierType: { |
| GrGLRenderTarget* glrt = static_cast<GrGLRenderTarget*>(rt); |
| if (glrt->textureFBOID() != glrt->renderFBOID()) { |
| // The render target uses separate storage so no need for glTextureBarrier. |
| // FIXME: The render target will resolve automatically when its texture is bound, |
| // but we could resolve only the bounds that will be read if we do it here instead. |
| return; |
| } |
| SkASSERT(this->caps()->textureBarrierSupport()); |
| GL_CALL(TextureBarrier()); |
| return; |
| } |
| case kBlend_GrXferBarrierType: |
| SkASSERT(GrCaps::kAdvanced_BlendEquationSupport == |
| this->caps()->blendEquationSupport()); |
| GL_CALL(BlendBarrier()); |
| return; |
| default: break; // placate compiler warnings that kNone not handled |
| } |
| } |
| |
| GrBackendObject GrGLGpu::createTestingOnlyBackendTexture(void* pixels, int w, int h, |
| GrPixelConfig config) { |
| if (!this->caps()->isConfigTexturable(config)) { |
| return false; |
| } |
| GrGLTextureInfo* info = new GrGLTextureInfo; |
| info->fTarget = GR_GL_TEXTURE_2D; |
| info->fID = 0; |
| GL_CALL(GenTextures(1, &info->fID)); |
| GL_CALL(ActiveTexture(GR_GL_TEXTURE0)); |
| GL_CALL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, 1)); |
| GL_CALL(BindTexture(info->fTarget, info->fID)); |
| fHWBoundTextureUniqueIDs[0] = 0; |
| GL_CALL(TexParameteri(info->fTarget, GR_GL_TEXTURE_MAG_FILTER, GR_GL_NEAREST)); |
| GL_CALL(TexParameteri(info->fTarget, GR_GL_TEXTURE_MIN_FILTER, GR_GL_NEAREST)); |
| GL_CALL(TexParameteri(info->fTarget, GR_GL_TEXTURE_WRAP_S, GR_GL_CLAMP_TO_EDGE)); |
| GL_CALL(TexParameteri(info->fTarget, GR_GL_TEXTURE_WRAP_T, GR_GL_CLAMP_TO_EDGE)); |
| |
| GrGLenum internalFormat; |
| GrGLenum externalFormat; |
| GrGLenum externalType; |
| |
| if (!this->glCaps().getTexImageFormats(config, config, &internalFormat, &externalFormat, |
| &externalType)) { |
| delete info; |
| #ifdef SK_IGNORE_GL_TEXTURE_TARGET |
| return 0; |
| #else |
| return reinterpret_cast<GrBackendObject>(nullptr); |
| #endif |
| } |
| |
| GL_CALL(TexImage2D(info->fTarget, 0, internalFormat, w, h, 0, externalFormat, |
| externalType, pixels)); |
| |
| #ifdef SK_IGNORE_GL_TEXTURE_TARGET |
| GrGLuint id = info->fID; |
| delete info; |
| return id; |
| #else |
| return reinterpret_cast<GrBackendObject>(info); |
| #endif |
| } |
| |
| bool GrGLGpu::isTestingOnlyBackendTexture(GrBackendObject id) const { |
| #ifdef SK_IGNORE_GL_TEXTURE_TARGET |
| GrGLuint texID = (GrGLuint)id; |
| #else |
| GrGLuint texID = reinterpret_cast<const GrGLTextureInfo*>(id)->fID; |
| #endif |
| |
| GrGLboolean result; |
| GL_CALL_RET(result, IsTexture(texID)); |
| |
| return (GR_GL_TRUE == result); |
| } |
| |
| void GrGLGpu::deleteTestingOnlyBackendTexture(GrBackendObject id, bool abandonTexture) { |
| #ifdef SK_IGNORE_GL_TEXTURE_TARGET |
| GrGLuint texID = (GrGLuint)id; |
| #else |
| const GrGLTextureInfo* info = reinterpret_cast<const GrGLTextureInfo*>(id); |
| GrGLuint texID = info->fID; |
| #endif |
| |
| if (!abandonTexture) { |
| GL_CALL(DeleteTextures(1, &texID)); |
| } |
| |
| #ifndef SK_IGNORE_GL_TEXTURE_TARGET |
| delete info; |
| #endif |
| } |
| |
| void GrGLGpu::resetShaderCacheForTesting() const { |
| fProgramCache->abandon(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| GrGLAttribArrayState* GrGLGpu::HWGeometryState::bindArrayAndBuffersToDraw( |
| GrGLGpu* gpu, |
| const GrGLVertexBuffer* vbuffer, |
| const GrGLIndexBuffer* ibuffer) { |
| SkASSERT(vbuffer); |
| GrGLuint vbufferID = vbuffer->bufferID(); |
| GrGLuint* ibufferIDPtr = nullptr; |
| GrGLuint ibufferID; |
| if (ibuffer) { |
| ibufferID = ibuffer->bufferID(); |
| ibufferIDPtr = &ibufferID; |
| } |
| return this->internalBind(gpu, vbufferID, ibufferIDPtr); |
| } |
| |
| GrGLAttribArrayState* GrGLGpu::HWGeometryState::bindArrayAndBufferToDraw(GrGLGpu* gpu, |
| GrGLuint vbufferID) { |
| return this->internalBind(gpu, vbufferID, nullptr); |
| } |
| |
| GrGLAttribArrayState* GrGLGpu::HWGeometryState::bindArrayAndBuffersToDraw(GrGLGpu* gpu, |
| GrGLuint vbufferID, |
| GrGLuint ibufferID) { |
| return this->internalBind(gpu, vbufferID, &ibufferID); |
| } |
| |
| GrGLAttribArrayState* GrGLGpu::HWGeometryState::internalBind(GrGLGpu* gpu, |
| GrGLuint vbufferID, |
| GrGLuint* ibufferID) { |
| GrGLAttribArrayState* attribState; |
| |
| if (gpu->glCaps().isCoreProfile() && 0 != vbufferID) { |
| if (!fVBOVertexArray) { |
| GrGLuint arrayID; |
| GR_GL_CALL(gpu->glInterface(), GenVertexArrays(1, &arrayID)); |
| int attrCount = gpu->glCaps().maxVertexAttributes(); |
| fVBOVertexArray = new GrGLVertexArray(arrayID, attrCount); |
| } |
| if (ibufferID) { |
| attribState = fVBOVertexArray->bindWithIndexBuffer(gpu, *ibufferID); |
| } else { |
| attribState = fVBOVertexArray->bind(gpu); |
| } |
| } else { |
| if (ibufferID) { |
| this->setIndexBufferIDOnDefaultVertexArray(gpu, *ibufferID); |
| } else { |
| this->setVertexArrayID(gpu, 0); |
| } |
| int attrCount = gpu->glCaps().maxVertexAttributes(); |
| if (fDefaultVertexArrayAttribState.count() != attrCount) { |
| fDefaultVertexArrayAttribState.resize(attrCount); |
| } |
| attribState = &fDefaultVertexArrayAttribState; |
| } |
| return attribState; |
| } |
| |
| bool GrGLGpu::onMakeCopyForTextureParams(GrTexture* texture, const GrTextureParams& textureParams, |
| GrTextureProducer::CopyParams* copyParams) const { |
| if (textureParams.isTiled() || |
| GrTextureParams::kMipMap_FilterMode == textureParams.filterMode()) { |
| GrGLTexture* glTexture = static_cast<GrGLTexture*>(texture); |
| if (GR_GL_TEXTURE_EXTERNAL == glTexture->target() || |
| GR_GL_TEXTURE_RECTANGLE == glTexture->target()) { |
| copyParams->fFilter = GrTextureParams::kNone_FilterMode; |
| copyParams->fWidth = texture->width(); |
| copyParams->fHeight = texture->height(); |
| return true; |
| } |
| } |
| return false; |
| } |