| /* |
| * Copyright 2022 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/graphite/ShaderCodeDictionary.h" |
| |
| #include "include/core/SkSamplingOptions.h" |
| #include "include/core/SkTileMode.h" |
| #include "include/effects/SkRuntimeEffect.h" |
| #include "include/gpu/graphite/Context.h" |
| #include "include/private/SkOpts_spi.h" |
| #include "include/private/SkSLString.h" |
| #include "src/core/SkColorSpacePriv.h" |
| #include "src/core/SkColorSpaceXformSteps.h" |
| #include "src/core/SkRuntimeEffectPriv.h" |
| #include "src/core/SkSLTypeShared.h" |
| #include "src/gpu/graphite/Caps.h" |
| #include "src/gpu/graphite/ContextUtils.h" |
| #include "src/gpu/graphite/Renderer.h" |
| #include "src/gpu/graphite/RuntimeEffectDictionary.h" |
| #include "src/sksl/codegen/SkSLPipelineStageCodeGenerator.h" |
| #include "src/sksl/ir/SkSLVarDeclarations.h" |
| |
| #include <new> |
| |
| namespace { |
| |
| std::string get_mangled_name(const std::string& baseName, int manglingSuffix) { |
| return baseName + "_" + std::to_string(manglingSuffix); |
| } |
| |
| } // anonymous namespace |
| |
| namespace skgpu::graphite { |
| |
| using DataPayloadField = PaintParamsKey::DataPayloadField; |
| using DataPayloadType = PaintParamsKey::DataPayloadType; |
| |
| std::string ShaderSnippet::getMangledUniformName(const ShaderInfo& shaderInfo, |
| int uniformIdx, |
| int mangleId) const { |
| std::string result; |
| result = fUniforms[uniformIdx].name() + std::string("_") + std::to_string(mangleId); |
| if (shaderInfo.ssboIndex()) { |
| result = EmitStorageBufferAccess("fs", shaderInfo.ssboIndex(), result.c_str()); |
| } |
| return result; |
| } |
| |
| std::string ShaderSnippet::getMangledSamplerName(int samplerIdx, int mangleId) const { |
| std::string result; |
| result = fTexturesAndSamplers[samplerIdx].name() + std::string("_") + std::to_string(mangleId); |
| return result; |
| } |
| |
| // Returns an expression to invoke this entry. |
| static std::string emit_expression_for_entry(const ShaderInfo& shaderInfo, |
| int entryIndex, |
| ShaderSnippet::Args args) { |
| const PaintParamsKey::BlockReader& reader = shaderInfo.blockReader(entryIndex); |
| const ShaderSnippet* entry = reader.entry(); |
| |
| return entry->fExpressionGenerator(shaderInfo, entryIndex, reader, args); |
| } |
| |
| // Emit the glue code needed to invoke a single static helper isolated within its own scope. |
| // Glue code will assign the resulting color into a variable `half4 outColor%d`, where the %d is |
| // filled in with 'entryIndex'. |
| static std::string emit_glue_code_for_entry(const ShaderInfo& shaderInfo, |
| int entryIndex, |
| const ShaderSnippet::Args& args, |
| std::string* funcBody) { |
| const ShaderSnippet* entry = shaderInfo.blockReader(entryIndex).entry(); |
| |
| std::string expr = emit_expression_for_entry(shaderInfo, entryIndex, args); |
| std::string outputVar = get_mangled_name("outColor", entryIndex); |
| SkSL::String::appendf(funcBody, |
| "// %s\n" |
| "half4 %s = %s;", |
| entry->fName, |
| outputVar.c_str(), |
| expr.c_str()); |
| return outputVar; |
| } |
| |
| static void emit_preamble_for_entry(const ShaderInfo& shaderInfo, |
| int* entryIndex, |
| std::string* preamble) { |
| const PaintParamsKey::BlockReader& reader = shaderInfo.blockReader(*entryIndex); |
| |
| [[maybe_unused]] int startingEntryIndex = *entryIndex; |
| reader.entry()->fPreambleGenerator(shaderInfo, entryIndex, reader, preamble); |
| |
| // Preamble generators are responsible for increasing the entry index as entries are consumed. |
| SkASSERT(*entryIndex > startingEntryIndex); |
| } |
| |
| // The current, incomplete, model for shader construction is: |
| // - Static code snippets (which can have an arbitrary signature) live in the Graphite |
| // pre-compiled module, which is located at `src/sksl/sksl_graphite_frag.sksl`. |
| // - Glue code is generated in a `main` method which calls these static code snippets. |
| // The glue code is responsible for: |
| // 1) gathering the correct (mangled) uniforms |
| // 2) passing the uniforms and any other parameters to the helper method |
| // - The result of the final code snippet is then copied into "sk_FragColor". |
| // Note: each entry's 'fStaticFunctionName' field is expected to match the name of a function |
| // in the Graphite pre-compiled module. |
| std::string ShaderInfo::toSkSL(const ResourceBindingRequirements& bindingReqs, |
| const RenderStep* step, |
| const bool useStorageBuffers, |
| const bool defineLocalCoordsVarying, |
| int* numTexturesAndSamplersUsed) const { |
| std::string preamble = EmitVaryings(step, |
| /*direction=*/"in", |
| /*emitShadingSsboIndexVarying=*/useStorageBuffers, |
| defineLocalCoordsVarying); |
| |
| // The uniforms are mangled by having their index in 'fEntries' as a suffix (i.e., "_%d") |
| // TODO: replace hard-coded bufferIDs with the backend's step and paint uniform-buffer indices. |
| // TODO: The use of these indices is Metal-specific. We should replace these functions with |
| // API-independent ones. |
| if (step->numUniforms() > 0) { |
| preamble += EmitRenderStepUniforms( |
| /*bufferID=*/1, "Step", bindingReqs.fUniformBufferLayout, step->uniforms()); |
| } |
| if (this->ssboIndex()) { |
| preamble += EmitPaintParamsStorageBuffer(/*bufferID=*/2, "FS", "fs", fBlockReaders); |
| } else { |
| preamble += EmitPaintParamsUniforms( |
| /*bufferID=*/2, |
| "FS", |
| useStorageBuffers ? bindingReqs.fStorageBufferLayout |
| : bindingReqs.fUniformBufferLayout, |
| fBlockReaders); |
| } |
| |
| { |
| int binding = 0; |
| preamble += EmitTexturesAndSamplers(bindingReqs, fBlockReaders, &binding); |
| if (step->hasTextures()) { |
| preamble += step->texturesAndSamplersSkSL(bindingReqs, &binding); |
| } |
| |
| // Report back to the caller how many textures and samplers are used. |
| if (numTexturesAndSamplersUsed) { |
| *numTexturesAndSamplersUsed = binding; |
| } |
| } |
| |
| std::string mainBody = "void main() {"; |
| // Set initial color. This will typically be optimized out by SkSL in favor of the paint |
| // specifying a color with a solid color shader. |
| std::string lastOutputVar = "initialColor"; |
| mainBody += "half4 initialColor = half4(0);"; |
| |
| if (step->emitsPrimitiveColor()) { |
| mainBody += "half4 primitiveColor;"; |
| mainBody += step->fragmentColorSkSL(); |
| } |
| |
| for (int entryIndex = 0; entryIndex < (int)fBlockReaders.size();) { |
| // Emit shader main body code. This never alters the preamble or increases the entry index. |
| static constexpr char kUnusedDestColor[] = "half4(1)"; |
| static constexpr char kUnusedLocalCoordinates[] = "float2(0)"; |
| const std::string localCoordinates = this->needsLocalCoords() ? "localCoordsVar" |
| : kUnusedLocalCoordinates; |
| lastOutputVar = emit_glue_code_for_entry(*this, entryIndex, {lastOutputVar, |
| kUnusedDestColor, localCoordinates}, |
| &mainBody); |
| |
| // Emit preamble code. This iterates over all the children as well, and increases the entry |
| // index as we go. |
| emit_preamble_for_entry(*this, &entryIndex, &preamble); |
| } |
| |
| if (step->emitsCoverage()) { |
| mainBody += "half4 outputCoverage;"; |
| mainBody += step->fragmentCoverageSkSL(); |
| SkSL::String::appendf(&mainBody, "sk_FragColor = %s * outputCoverage;", |
| lastOutputVar.c_str()); |
| } else { |
| SkSL::String::appendf(&mainBody, "sk_FragColor = %s;", lastOutputVar.c_str()); |
| } |
| mainBody += "}\n"; |
| |
| return preamble + "\n" + mainBody; |
| } |
| |
| ShaderCodeDictionary::Entry* ShaderCodeDictionary::makeEntry(const PaintParamsKey& key, |
| const skgpu::BlendInfo& blendInfo) { |
| uint8_t* newKeyData = fArena.makeArray<uint8_t>(key.sizeInBytes()); |
| memcpy(newKeyData, key.data(), key.sizeInBytes()); |
| |
| SkSpan<const uint8_t> newKeyAsSpan = SkSpan(newKeyData, key.sizeInBytes()); |
| return fArena.make([&](void *ptr) { return new(ptr) Entry(newKeyAsSpan, blendInfo); }); |
| } |
| |
| size_t ShaderCodeDictionary::PaintParamsKeyPtr::Hash::operator()(PaintParamsKeyPtr p) const { |
| return SkOpts::hash_fn(p.fKey->data(), p.fKey->sizeInBytes(), 0); |
| } |
| |
| size_t ShaderCodeDictionary::RuntimeEffectKey::Hash::operator()(RuntimeEffectKey k) const { |
| return SkOpts::hash_fn(&k, sizeof(k), 0); |
| } |
| |
| const ShaderCodeDictionary::Entry* ShaderCodeDictionary::findOrCreate( |
| PaintParamsKeyBuilder* builder) { |
| PaintParamsKey key = builder->lockAsKey(); |
| |
| SkAutoSpinlock lock{fSpinLock}; |
| |
| Entry** existingEntry = fHash.find(PaintParamsKeyPtr{&key}); |
| if (existingEntry) { |
| SkASSERT(fEntryVector[(*existingEntry)->uniqueID().asUInt()] == *existingEntry); |
| return *existingEntry; |
| } |
| |
| Entry* newEntry = this->makeEntry(key, builder->blendInfo()); |
| newEntry->setUniqueID(fEntryVector.size()); |
| fHash.set(PaintParamsKeyPtr{&newEntry->paintParamsKey()}, newEntry); |
| fEntryVector.push_back(newEntry); |
| |
| return newEntry; |
| } |
| |
| const ShaderCodeDictionary::Entry* ShaderCodeDictionary::lookup( |
| UniquePaintParamsID codeID) const { |
| |
| if (!codeID.isValid()) { |
| return nullptr; |
| } |
| |
| SkAutoSpinlock lock{fSpinLock}; |
| |
| SkASSERT(codeID.asUInt() < fEntryVector.size()); |
| |
| return fEntryVector[codeID.asUInt()]; |
| } |
| |
| SkSpan<const Uniform> ShaderCodeDictionary::getUniforms(BuiltInCodeSnippetID id) const { |
| return fBuiltInCodeSnippets[(int) id].fUniforms; |
| } |
| |
| SkSpan<const DataPayloadField> ShaderCodeDictionary::dataPayloadExpectations( |
| int codeSnippetID) const { |
| // All callers of this entry point should already have ensured that 'codeSnippetID' is valid |
| return this->getEntry(codeSnippetID)->fDataPayloadExpectations; |
| } |
| |
| const ShaderSnippet* ShaderCodeDictionary::getEntry(int codeSnippetID) const { |
| if (codeSnippetID < 0) { |
| return nullptr; |
| } |
| |
| if (codeSnippetID < kBuiltInCodeSnippetIDCount) { |
| return &fBuiltInCodeSnippets[codeSnippetID]; |
| } |
| |
| int userDefinedCodeSnippetID = codeSnippetID - kBuiltInCodeSnippetIDCount; |
| if (userDefinedCodeSnippetID < SkTo<int>(fUserDefinedCodeSnippets.size())) { |
| return fUserDefinedCodeSnippets[userDefinedCodeSnippetID].get(); |
| } |
| |
| return nullptr; |
| } |
| |
| void ShaderCodeDictionary::getShaderInfo(UniquePaintParamsID uniqueID, |
| ShaderInfo* info) const { |
| auto entry = this->lookup(uniqueID); |
| |
| entry->paintParamsKey().toShaderInfo(this, info); |
| info->setBlendInfo(entry->blendInfo()); |
| } |
| |
| //-------------------------------------------------------------------------------------------------- |
| namespace { |
| |
| static std::string append_default_snippet_arguments(const ShaderInfo& shaderInfo, |
| const ShaderSnippet* entry, |
| int entryIndex, |
| const ShaderSnippet::Args& args, |
| SkSpan<const std::string> childOutputs) { |
| std::string code = "("; |
| |
| const char* separator = ""; |
| |
| // Append prior-stage output color. |
| if (entry->needsPriorStageOutput()) { |
| code += args.fPriorStageOutput; |
| separator = ", "; |
| } |
| |
| // Append destination color. |
| if (entry->needsDestColor()) { |
| code += separator; |
| code += args.fDestColor; |
| separator = ", "; |
| } |
| |
| // Append fragment coordinates. |
| if (entry->needsLocalCoords()) { |
| code += separator; |
| code += args.fFragCoord; |
| separator = ", "; |
| } |
| |
| // Append uniform names. |
| for (size_t i = 0; i < entry->fUniforms.size(); ++i) { |
| code += separator; |
| separator = ", "; |
| code += entry->getMangledUniformName(shaderInfo, i, entryIndex); |
| } |
| |
| // Append samplers. |
| for (size_t i = 0; i < entry->fTexturesAndSamplers.size(); ++i) { |
| code += separator; |
| code += entry->getMangledSamplerName(i, entryIndex); |
| separator = ", "; |
| } |
| |
| // Append child output names. |
| for (const std::string& childOutputVar : childOutputs) { |
| code += separator; |
| separator = ", "; |
| code += childOutputVar; |
| } |
| code.push_back(')'); |
| |
| return code; |
| } |
| |
| static void emit_helper_function(const ShaderInfo& shaderInfo, |
| int* entryIndex, |
| std::string* preamble) { |
| const PaintParamsKey::BlockReader& reader = shaderInfo.blockReader(*entryIndex); |
| const ShaderSnippet* entry = reader.entry(); |
| |
| const int numChildren = reader.numChildren(); |
| SkASSERT(numChildren == entry->fNumChildren); |
| |
| // Advance over the parent entry. |
| int curEntryIndex = *entryIndex; |
| *entryIndex += 1; |
| |
| // Create a helper function that invokes each of the children, then calls the entry's snippet |
| // and passes all the child outputs along as arguments. |
| std::string helperFnName = get_mangled_name(entry->fStaticFunctionName, curEntryIndex); |
| std::string helperFn = SkSL::String::printf( |
| "half4 %s(half4 inColor, half4 destColor, float2 pos) {", |
| helperFnName.c_str()); |
| std::vector<std::string> childOutputVarNames; |
| const ShaderSnippet::Args args = {"inColor", "destColor", "pos"}; |
| for (int j = 0; j < numChildren; ++j) { |
| // Emit glue code into our helper function body. |
| std::string childOutputVar = emit_glue_code_for_entry(shaderInfo, *entryIndex, args, |
| &helperFn); |
| childOutputVarNames.push_back(std::move(childOutputVar)); |
| |
| // If this entry itself requires a preamble, handle that here. This will advance the |
| // entry index forward as required. |
| emit_preamble_for_entry(shaderInfo, entryIndex, preamble); |
| } |
| |
| // Finally, invoke the snippet from the helper function, passing uniforms and child outputs. |
| std::string snippetArgList = append_default_snippet_arguments(shaderInfo, entry, curEntryIndex, |
| args, childOutputVarNames); |
| SkSL::String::appendf(&helperFn, |
| "return %s%s;" |
| "}", |
| entry->fStaticFunctionName, snippetArgList.c_str()); |
| |
| // Add our new helper function to the bottom of the preamble. |
| *preamble += helperFn; |
| } |
| |
| // If we have no children, the default expression just calls a built-in snippet with the signature: |
| // half4 BuiltinFunctionName(/* default snippet arguments */); |
| // |
| // If we do have children, we will have created a glue function in the preamble and that is called |
| // instead. Its signature looks like this: |
| // half4 BuiltinFunctionName_N(half4 inColor, half4 destColor, float2 pos); |
| |
| std::string GenerateDefaultExpression(const ShaderInfo& shaderInfo, |
| int entryIndex, |
| const PaintParamsKey::BlockReader& reader, |
| const ShaderSnippet::Args& args) { |
| const ShaderSnippet* entry = reader.entry(); |
| if (entry->fNumChildren == 0) { |
| // We don't have any children; return an expression which invokes the snippet directly. |
| return entry->fStaticFunctionName + append_default_snippet_arguments(shaderInfo, |
| entry, |
| entryIndex, |
| args, |
| /*childOutputs=*/{}); |
| } else { |
| // Return an expression which invokes the helper function from the preamble. |
| std::string helperFnName = get_mangled_name(entry->fStaticFunctionName, entryIndex); |
| return SkSL::String::printf("%s(%.*s, %.*s, %.*s)", |
| helperFnName.c_str(), |
| (int)args.fPriorStageOutput.size(), args.fPriorStageOutput.data(), |
| (int)args.fDestColor.size(), args.fDestColor.data(), |
| (int)args.fFragCoord.size(), args.fFragCoord.data()); |
| } |
| } |
| |
| // If we have no children, we don't need to add anything into the preamble. |
| // If we have child entries, we create a function in the preamble with a signature of: |
| // half4 BuiltinFunctionName_N(half4 inColor, half4 destColor, float2 pos) { ... } |
| // This function invokes each child in sequence, and then calls the built-in function, passing all |
| // uniforms and child outputs along: |
| // half4 BuiltinFunctionName(/* all uniforms as parameters */, |
| // /* all child output variable names as parameters */); |
| void GenerateDefaultPreamble(const ShaderInfo& shaderInfo, |
| int* entryIndex, |
| const PaintParamsKey::BlockReader& reader, |
| std::string* preamble) { |
| const ShaderSnippet* entry = reader.entry(); |
| |
| if (entry->fNumChildren > 0) { |
| // Create a helper function which invokes all the child snippets. |
| emit_helper_function(shaderInfo, entryIndex, preamble); |
| } else { |
| // We don't need a helper function; just advance over this entry. |
| SkASSERT(reader.numChildren() == 0); |
| *entryIndex += 1; |
| } |
| } |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr int kFourStopGradient = 4; |
| static constexpr int kEightStopGradient = 8; |
| |
| static constexpr Uniform kLinearGradientUniforms4[] = { |
| { "colors", SkSLType::kFloat4, kFourStopGradient }, |
| { "offsets", SkSLType::kFloat, kFourStopGradient }, |
| { "point0", SkSLType::kFloat2 }, |
| { "point1", SkSLType::kFloat2 }, |
| { "tilemode", SkSLType::kInt }, |
| }; |
| static constexpr Uniform kLinearGradientUniforms8[] = { |
| { "colors", SkSLType::kFloat4, kEightStopGradient }, |
| { "offsets", SkSLType::kFloat, kEightStopGradient }, |
| { "point0", SkSLType::kFloat2 }, |
| { "point1", SkSLType::kFloat2 }, |
| { "tilemode", SkSLType::kInt }, |
| }; |
| |
| static constexpr Uniform kRadialGradientUniforms4[] = { |
| { "colors", SkSLType::kFloat4, kFourStopGradient }, |
| { "offsets", SkSLType::kFloat, kFourStopGradient }, |
| { "center", SkSLType::kFloat2 }, |
| { "radius", SkSLType::kFloat }, |
| { "tilemode", SkSLType::kInt }, |
| }; |
| static constexpr Uniform kRadialGradientUniforms8[] = { |
| { "colors", SkSLType::kFloat4, kEightStopGradient }, |
| { "offsets", SkSLType::kFloat, kEightStopGradient }, |
| { "center", SkSLType::kFloat2 }, |
| { "radius", SkSLType::kFloat }, |
| { "tilemode", SkSLType::kInt }, |
| }; |
| |
| static constexpr Uniform kSweepGradientUniforms4[] = { |
| { "colors", SkSLType::kFloat4, kFourStopGradient }, |
| { "offsets", SkSLType::kFloat, kFourStopGradient }, |
| { "center", SkSLType::kFloat2 }, |
| { "bias", SkSLType::kFloat }, |
| { "scale", SkSLType::kFloat }, |
| { "tilemode", SkSLType::kInt }, |
| }; |
| static constexpr Uniform kSweepGradientUniforms8[] = { |
| { "colors", SkSLType::kFloat4, kEightStopGradient }, |
| { "offsets", SkSLType::kFloat, kEightStopGradient }, |
| { "center", SkSLType::kFloat2 }, |
| { "bias", SkSLType::kFloat }, |
| { "scale", SkSLType::kFloat }, |
| { "tilemode", SkSLType::kInt }, |
| }; |
| |
| static constexpr Uniform kConicalGradientUniforms4[] = { |
| { "colors", SkSLType::kFloat4, kFourStopGradient }, |
| { "offsets", SkSLType::kFloat, kFourStopGradient }, |
| { "point0", SkSLType::kFloat2 }, |
| { "point1", SkSLType::kFloat2 }, |
| { "radius0", SkSLType::kFloat }, |
| { "radius1", SkSLType::kFloat }, |
| { "tilemode", SkSLType::kInt }, |
| }; |
| static constexpr Uniform kConicalGradientUniforms8[] = { |
| { "colors", SkSLType::kFloat4, kEightStopGradient }, |
| { "offsets", SkSLType::kFloat, kEightStopGradient }, |
| { "point0", SkSLType::kFloat2 }, |
| { "point1", SkSLType::kFloat2 }, |
| { "radius0", SkSLType::kFloat }, |
| { "radius1", SkSLType::kFloat }, |
| { "tilemode", SkSLType::kInt }, |
| }; |
| |
| static constexpr char kLinearGradient4Name[] = "sk_linear_grad_4_shader"; |
| static constexpr char kLinearGradient8Name[] = "sk_linear_grad_8_shader"; |
| static constexpr char kRadialGradient4Name[] = "sk_radial_grad_4_shader"; |
| static constexpr char kRadialGradient8Name[] = "sk_radial_grad_8_shader"; |
| static constexpr char kSweepGradient4Name[] = "sk_sweep_grad_4_shader"; |
| static constexpr char kSweepGradient8Name[] = "sk_sweep_grad_8_shader"; |
| static constexpr char kConicalGradient4Name[] = "sk_conical_grad_4_shader"; |
| static constexpr char kConicalGradient8Name[] = "sk_conical_grad_8_shader"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr Uniform kSolidShaderUniforms[] = { |
| { "color", SkSLType::kFloat4 } |
| }; |
| |
| static constexpr char kSolidShaderName[] = "sk_solid_shader"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr Uniform kLocalMatrixShaderUniforms[] = { |
| { "localMatrix", SkSLType::kFloat4x4 }, |
| }; |
| |
| static constexpr int kNumLocalMatrixShaderChildren = 1; |
| |
| static constexpr char kLocalMatrixShaderName[] = "LocalMatrix"; |
| |
| void GenerateLocalMatrixPreamble(const ShaderInfo& shaderInfo, |
| int* entryIndex, |
| const PaintParamsKey::BlockReader& reader, |
| std::string* preamble) { |
| const ShaderSnippet* entry = reader.entry(); |
| SkASSERT(entry->fNumChildren == kNumLocalMatrixShaderChildren); |
| |
| // Advance over the parent entry. |
| int curEntryIndex = *entryIndex; |
| *entryIndex += 1; |
| |
| // Get the child's evaluation expression. |
| static constexpr char kUnusedDestColor[] = "half4(1)"; |
| std::string childExpr = emit_expression_for_entry(shaderInfo, *entryIndex, |
| {"inColor", kUnusedDestColor, "coords"}); |
| // Emit preamble code for child. |
| emit_preamble_for_entry(shaderInfo, entryIndex, preamble); |
| |
| std::string localMatrixUni = reader.entry()->getMangledUniformName(shaderInfo, 0, |
| curEntryIndex); |
| |
| /** |
| * Create a helper function that multiplies coordinates by a local matrix, invokes the child |
| * entry with those updated coordinates, and returns the result. This helper function meets the |
| * requirements for use with GenerateDefaultExpression, so there's no need to have a separate |
| * special GenerateLocalMatrixExpression. |
| */ |
| std::string helperFnName = get_mangled_name(entry->fStaticFunctionName, curEntryIndex); |
| SkSL::String::appendf(preamble, |
| "half4 %s(half4 inColor, half4 destColor, float2 coords) {" |
| "coords = (%s * coords.xy01).xy;" |
| "return %s;" |
| "}", |
| helperFnName.c_str(), |
| localMatrixUni.c_str(), |
| childExpr.c_str()); |
| } |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr int kNumXferFnCoeffs = 7; |
| |
| static constexpr Uniform kImageShaderUniforms[] = { |
| { "imgSize", SkSLType::kFloat2 }, |
| { "subset", SkSLType::kFloat4 }, |
| { "tilemodeX", SkSLType::kInt }, |
| { "tilemodeY", SkSLType::kInt }, |
| { "filterMode", SkSLType::kInt }, |
| { "useCubic", SkSLType::kInt }, |
| { "cubicCoeffs", SkSLType::kFloat4x4 }, |
| // The next 6 uniforms are for the color space transformation |
| { "csXformFlags", SkSLType::kInt }, |
| { "csXformSrcKind", SkSLType::kInt }, |
| { "csXformDstKind", SkSLType::kInt }, |
| { "csXformSrcCoeffs", SkSLType::kHalf, kNumXferFnCoeffs }, |
| { "csXformDstCoeffs", SkSLType::kHalf, kNumXferFnCoeffs }, |
| { "csXformGamutTransform", SkSLType::kHalf3x3 }, |
| }; |
| |
| static constexpr TextureAndSampler kISTexturesAndSamplers[] = { |
| {"sampler"}, |
| }; |
| |
| static_assert(0 == static_cast<int>(SkTileMode::kClamp), "ImageShader code depends on SkTileMode"); |
| static_assert(1 == static_cast<int>(SkTileMode::kRepeat), "ImageShader code depends on SkTileMode"); |
| static_assert(2 == static_cast<int>(SkTileMode::kMirror), "ImageShader code depends on SkTileMode"); |
| static_assert(3 == static_cast<int>(SkTileMode::kDecal), "ImageShader code depends on SkTileMode"); |
| |
| static_assert(0 == static_cast<int>(SkFilterMode::kNearest), |
| "ImageShader code depends on SkFilterMode"); |
| static_assert(1 == static_cast<int>(SkFilterMode::kLinear), |
| "ImageShader code depends on SkFilterMode"); |
| |
| static constexpr char kImageShaderName[] = "sk_image_shader"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr Uniform kPorterDuffBlendShaderUniforms[] = { |
| { "blendConstants", SkSLType::kHalf4 }, |
| }; |
| |
| static constexpr char kPorterDuffBlendShaderName[] = "porter_duff_blend_shader"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr Uniform kBlendShaderUniforms[] = { |
| { "blendMode", SkSLType::kInt }, |
| }; |
| |
| static constexpr char kBlendShaderName[] = "sk_blend_shader"; |
| |
| static constexpr int kNumBlendShaderChildren = 2; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr char kColorFilterShaderName[] = "ColorFilterShader"; |
| |
| static constexpr int kNumColorFilterShaderChildren = 2; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr char kRuntimeShaderName[] = "RuntimeEffect"; |
| |
| class GraphitePipelineCallbacks : public SkSL::PipelineStage::Callbacks { |
| public: |
| GraphitePipelineCallbacks(const ShaderInfo& shaderInfo, |
| int entryIndex, |
| const std::vector<int>& childEntryIndices, |
| std::string* preamble) |
| : fShaderInfo(shaderInfo) |
| , fEntryIndex(entryIndex) |
| , fChildEntryIndices(childEntryIndices) |
| , fPreamble(preamble) {} |
| |
| std::string declareUniform(const SkSL::VarDeclaration* decl) override { |
| std::string result = get_mangled_name(std::string(decl->var()->name()), fEntryIndex); |
| if (fShaderInfo.ssboIndex()) { |
| result = EmitStorageBufferAccess("fs", fShaderInfo.ssboIndex(), result.c_str()); |
| } |
| return result; |
| } |
| |
| void defineFunction(const char* decl, const char* body, bool isMain) override { |
| if (isMain) { |
| SkSL::String::appendf( |
| fPreamble, |
| "half4 %s_%d(half4 inColor, half4 destColor, float2 coords) {" |
| "float2 pos = coords;" |
| "%s" |
| "}", |
| kRuntimeShaderName, |
| fEntryIndex, |
| body); |
| } else { |
| SkSL::String::appendf(fPreamble, "%s {%s}\n", decl, body); |
| } |
| } |
| |
| void declareFunction(const char* decl) override { |
| *fPreamble += std::string(decl) + ";"; |
| } |
| |
| void defineStruct(const char* definition) override { |
| *fPreamble += std::string(definition) + ";"; |
| } |
| |
| void declareGlobal(const char* declaration) override { |
| *fPreamble += std::string(declaration) + ";"; |
| } |
| |
| std::string sampleShader(int index, std::string coords) override { |
| SkASSERT(index >= 0 && index < (int)fChildEntryIndices.size()); |
| return emit_expression_for_entry(fShaderInfo, fChildEntryIndices[index], |
| {"inColor", "destColor", coords}); |
| } |
| |
| std::string sampleColorFilter(int index, std::string color) override { |
| SkASSERT(index >= 0 && index < (int)fChildEntryIndices.size()); |
| return emit_expression_for_entry(fShaderInfo, fChildEntryIndices[index], |
| {color, "destColor", "coords"}); |
| } |
| |
| std::string sampleBlender(int index, std::string src, std::string dst) override { |
| return emit_expression_for_entry(fShaderInfo, fChildEntryIndices[index], |
| {src, dst, "coords"}); |
| } |
| |
| std::string toLinearSrgb(std::string color) override { |
| // TODO(skia:13508): implement to-linear-SRGB child effect |
| return color; |
| } |
| std::string fromLinearSrgb(std::string color) override { |
| // TODO(skia:13508): implement from-linear-SRGB child effect |
| return color; |
| } |
| |
| std::string getMangledName(const char* name) override { |
| return get_mangled_name(name, fEntryIndex); |
| } |
| |
| private: |
| const ShaderInfo& fShaderInfo; |
| int fEntryIndex; |
| const std::vector<int>& fChildEntryIndices; |
| std::string* fPreamble; |
| }; |
| |
| void GenerateRuntimeShaderPreamble(const ShaderInfo& shaderInfo, |
| int* entryIndex, |
| const PaintParamsKey::BlockReader& reader, |
| std::string* preamble) { |
| const ShaderSnippet* entry = reader.entry(); |
| |
| // Advance over the parent entry. |
| int curEntryIndex = *entryIndex; |
| *entryIndex += 1; |
| |
| // Emit the preambles for all of our child effects (and advance the entry-index past them). |
| // This computes the indices of our child effects, which we use when invoking them below. |
| std::vector<int> childEntryIndices; |
| childEntryIndices.reserve(entry->fNumChildren); |
| for (int j = 0; j < entry->fNumChildren; ++j) { |
| childEntryIndices.push_back(*entryIndex); |
| emit_preamble_for_entry(shaderInfo, entryIndex, preamble); |
| } |
| |
| // Find this runtime effect in the runtime-effect dictionary. |
| const int codeSnippetId = reader.codeSnippetId(); |
| const SkRuntimeEffect* effect = shaderInfo.runtimeEffectDictionary()->find(codeSnippetId); |
| SkASSERT(effect); |
| const SkSL::Program& program = SkRuntimeEffectPriv::Program(*effect); |
| |
| GraphitePipelineCallbacks callbacks{shaderInfo, curEntryIndex, childEntryIndices, preamble}; |
| SkASSERT(std::string_view(entry->fName) == kRuntimeShaderName); // the callbacks assume this |
| SkSL::PipelineStage::ConvertProgram(program, "pos", "inColor", "destColor", &callbacks); |
| } |
| |
| std::string GenerateRuntimeShaderExpression(const ShaderInfo& shaderInfo, |
| int entryIndex, |
| const PaintParamsKey::BlockReader& reader, |
| const ShaderSnippet::Args& args) { |
| const ShaderSnippet* entry = reader.entry(); |
| return SkSL::String::printf("%s_%d(%.*s, %.*s, %.*s)", |
| entry->fName, |
| entryIndex, |
| (int)args.fPriorStageOutput.size(), args.fPriorStageOutput.data(), |
| (int)args.fDestColor.size(), args.fDestColor.data(), |
| (int)args.fFragCoord.size(), args.fFragCoord.data()); |
| } |
| |
| //-------------------------------------------------------------------------------------------------- |
| // TODO: investigate the implications of having separate hlsa and rgba matrix colorfilters. It |
| // may be that having them separate will not contribute to combinatorial explosion. |
| static constexpr Uniform kMatrixColorFilterUniforms[] = { |
| { "matrix", SkSLType::kFloat4x4 }, |
| { "translate", SkSLType::kFloat4 }, |
| { "inHSL", SkSLType::kInt }, |
| }; |
| |
| static constexpr char kMatrixColorFilterName[] = "sk_matrix_colorfilter"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr Uniform kBlendColorFilterUniforms[] = { |
| { "blendMode", SkSLType::kInt }, |
| { "color", SkSLType::kFloat4 } |
| }; |
| |
| static constexpr char kBlendColorFilterName[] = "sk_blend_colorfilter"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr char kComposeColorFilterName[] = "ComposeColorFilter"; |
| |
| static constexpr int kNumComposeColorFilterChildren = 2; |
| |
| void GenerateNestedChildrenPreamble(const ShaderInfo& shaderInfo, |
| int* entryIndex, |
| const PaintParamsKey::BlockReader& reader, |
| std::string* preamble) { |
| const ShaderSnippet* entry = reader.entry(); |
| SkASSERT(entry->fNumChildren == 2); |
| |
| // Advance over the parent entry. |
| int curEntryIndex = *entryIndex; |
| *entryIndex += 1; |
| |
| // Evaluate inner child. |
| static constexpr char kUnusedDestColor[] = "half4(1)"; |
| std::string innerColor = emit_expression_for_entry(shaderInfo, *entryIndex, {"inColor", |
| kUnusedDestColor, "coords"}); |
| |
| // Emit preamble code for inner child. |
| emit_preamble_for_entry(shaderInfo, entryIndex, preamble); |
| |
| // Evaluate outer child. |
| std::string outerColor = emit_expression_for_entry(shaderInfo, *entryIndex, {innerColor, |
| kUnusedDestColor, "coords"}); |
| |
| // Emit preamble code for outer child. |
| emit_preamble_for_entry(shaderInfo, entryIndex, preamble); |
| |
| // Create a helper function that invokes the inner expression, then passes that result to the |
| // outer expression, and returns the composed result. |
| std::string helperFnName = get_mangled_name(entry->fStaticFunctionName, curEntryIndex); |
| SkSL::String::appendf( |
| preamble, |
| "half4 %s(half4 inColor, half4 destColor, float2 coords) {" |
| "return %s;" |
| "}", |
| helperFnName.c_str(), |
| outerColor.c_str()); |
| } |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr TextureAndSampler kTableColorFilterTexturesAndSamplers[] = { |
| {"tableSampler"}, |
| }; |
| |
| static constexpr char kTableColorFilterName[] = "sk_table_colorfilter"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr char kGaussianColorFilterName[] = "sk_gaussian_colorfilter"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr Uniform kColorSpaceTransformUniforms[] = { |
| { "flags", SkSLType::kInt }, |
| { "srcKind", SkSLType::kInt }, |
| { "dstKind", SkSLType::kInt }, |
| { "srcCoeffs", SkSLType::kHalf, kNumXferFnCoeffs }, |
| { "dstCoeffs", SkSLType::kHalf, kNumXferFnCoeffs }, |
| { "gamutTransform", SkSLType::kHalf3x3 }, |
| }; |
| |
| static_assert(0 == static_cast<int>(skcms_TFType_Invalid), |
| "ColorSpaceTransform code depends on skcms_TFType"); |
| static_assert(1 == static_cast<int>(skcms_TFType_sRGBish), |
| "ColorSpaceTransform code depends on skcms_TFType"); |
| static_assert(2 == static_cast<int>(skcms_TFType_PQish), |
| "ColorSpaceTransform code depends on skcms_TFType"); |
| static_assert(3 == static_cast<int>(skcms_TFType_HLGish), |
| "ColorSpaceTransform code depends on skcms_TFType"); |
| static_assert(4 == static_cast<int>(skcms_TFType_HLGinvish), |
| "ColorSpaceTransform code depends on skcms_TFType"); |
| |
| // TODO: We can meaningfully check these when we can use C++20 features. |
| // static_assert(0x1 == SkColorSpaceXformSteps::Flags{.unpremul = true}.mask(), |
| // "ColorSpaceTransform code depends on SkColorSpaceXformSteps::Flags"); |
| // static_assert(0x2 == SkColorSpaceXformSteps::Flags{.linearize = true}.mask(), |
| // "ColorSpaceTransform code depends on SkColorSpaceXformSteps::Flags"); |
| // static_assert(0x4 == SkColorSpaceXformSteps::Flags{.gamut_transform = true}.mask(), |
| // "ColorSpaceTransform code depends on SkColorSpaceXformSteps::Flags"); |
| // static_assert(0x8 == SkColorSpaceXformSteps::Flags{.encode = true}.mask(), |
| // "ColorSpaceTransform code depends on SkColorSpaceXformSteps::Flags"); |
| // static_assert(0x10 == SkColorSpaceXformSteps::Flags{.premul = true}.mask(), |
| // "ColorSpaceTransform code depends on SkColorSpaceXformSteps::Flags"); |
| |
| static constexpr char kColorSpaceTransformName[] = "sk_color_space_transform"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr char kErrorName[] = "sk_error"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr char kPassthroughShaderName[] = "sk_passthrough"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr char kPassthroughBlenderName[] = "blend_src_over"; |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr PaintParamsKey::DataPayloadField kFixedFunctionDataFields[] = { |
| { "blendMode", PaintParamsKey::DataPayloadType::kByte, 1}, |
| }; |
| |
| // This method generates the glue code for the case where the SkBlendMode-based blending is |
| // handled with fixed function blending. |
| std::string GenerateFixedFunctionBlenderExpression(const ShaderInfo&, |
| int entryIndex, |
| const PaintParamsKey::BlockReader& reader, |
| const ShaderSnippet::Args& args) { |
| SkASSERT(reader.entry()->fUniforms.empty()); |
| SkASSERT(reader.numDataPayloadFields() == 1); |
| |
| // The actual blending is set up via the fixed function pipeline so we don't actually |
| // need to access the blend mode in the glue code. |
| return std::string(args.fPriorStageOutput); |
| } |
| |
| //-------------------------------------------------------------------------------------------------- |
| static constexpr Uniform kShaderBasedBlenderUniforms[] = { |
| { "blendMode", SkSLType::kInt }, |
| }; |
| |
| static constexpr char kBlendHelperName[] = "sk_blend"; |
| |
| // This method generates the glue code for the case where the SkBlendMode-based blending must occur |
| // in the shader (i.e., fixed function blending isn't possible). |
| // It exists as custom glue code so that we can deal with the dest reads. If that can be |
| // standardized (e.g., via a snippets requirement flag) this could be removed. |
| std::string GenerateShaderBasedBlenderExpression(const ShaderInfo& shaderInfo, |
| int entryIndex, |
| const PaintParamsKey::BlockReader& reader, |
| const ShaderSnippet::Args& args) { |
| const bool usePrimitiveColorAsDst = reader.entry()->needsDestColor(); |
| |
| SkASSERT(reader.entry()->fUniforms.size() == 1); |
| SkASSERT(reader.numDataPayloadFields() == 0); |
| |
| std::string uniformName = reader.entry()->getMangledUniformName(shaderInfo, 0, entryIndex); |
| |
| // TODO: emit function to perform dest read into preamble, and replace half4(1) with that call |
| // (The `args.destColor` variable might seem tempting here, but this is used for programmatic |
| // src+dest blends within the shader, not for blends against the destination surface.) |
| const char * destColor = usePrimitiveColorAsDst ? "primitiveColor" : "half4(1)"; |
| |
| return SkSL::String::printf("%s(%s, %.*s, %s)", |
| reader.entry()->fStaticFunctionName, |
| uniformName.c_str(), |
| (int)args.fPriorStageOutput.size(), args.fPriorStageOutput.data(), |
| destColor); |
| } |
| |
| //-------------------------------------------------------------------------------------------------- |
| |
| } // anonymous namespace |
| |
| bool ShaderCodeDictionary::isValidID(int snippetID) const { |
| if (snippetID < 0) { |
| return false; |
| } |
| |
| if (snippetID < kBuiltInCodeSnippetIDCount) { |
| return true; |
| } |
| |
| int userDefinedCodeSnippetID = snippetID - kBuiltInCodeSnippetIDCount; |
| return userDefinedCodeSnippetID < SkTo<int>(fUserDefinedCodeSnippets.size()); |
| } |
| |
| static constexpr int kNoChildren = 0; |
| |
| int ShaderCodeDictionary::addUserDefinedSnippet( |
| const char* name, |
| SkSpan<const Uniform> uniforms, |
| SkEnumBitMask<SnippetRequirementFlags> snippetRequirementFlags, |
| SkSpan<const TextureAndSampler> texturesAndSamplers, |
| const char* functionName, |
| ShaderSnippet::GenerateExpressionForSnippetFn expressionGenerator, |
| ShaderSnippet::GeneratePreambleForSnippetFn preambleGenerator, |
| int numChildren, |
| SkSpan<const PaintParamsKey::DataPayloadField> dataPayloadExpectations) { |
| // TODO: the memory for user-defined entries could go in the dictionary's arena but that |
| // would have to be a thread safe allocation since the arena also stores entries for |
| // 'fHash' and 'fEntryVector' |
| fUserDefinedCodeSnippets.push_back(std::make_unique<ShaderSnippet>(name, |
| uniforms, |
| snippetRequirementFlags, |
| texturesAndSamplers, |
| functionName, |
| expressionGenerator, |
| preambleGenerator, |
| numChildren, |
| dataPayloadExpectations)); |
| |
| return kBuiltInCodeSnippetIDCount + fUserDefinedCodeSnippets.size() - 1; |
| } |
| |
| // TODO: this version needs to be removed |
| int ShaderCodeDictionary::addUserDefinedSnippet( |
| const char* name, |
| SkSpan<const DataPayloadField> dataPayloadExpectations) { |
| return this->addUserDefinedSnippet("UserDefined", |
| {}, // no uniforms |
| SnippetRequirementFlags::kNone, |
| {}, // no samplers |
| name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| dataPayloadExpectations); |
| } |
| |
| static SkSLType uniform_type_to_sksl_type(const SkRuntimeEffect::Uniform& u) { |
| using Type = SkRuntimeEffect::Uniform::Type; |
| if (u.flags & SkRuntimeEffect::Uniform::kHalfPrecision_Flag) { |
| switch (u.type) { |
| case Type::kFloat: return SkSLType::kHalf; |
| case Type::kFloat2: return SkSLType::kHalf2; |
| case Type::kFloat3: return SkSLType::kHalf3; |
| case Type::kFloat4: return SkSLType::kHalf4; |
| case Type::kFloat2x2: return SkSLType::kHalf2x2; |
| case Type::kFloat3x3: return SkSLType::kHalf3x3; |
| case Type::kFloat4x4: return SkSLType::kHalf4x4; |
| case Type::kInt: return SkSLType::kShort; |
| case Type::kInt2: return SkSLType::kShort2; |
| case Type::kInt3: return SkSLType::kShort3; |
| case Type::kInt4: return SkSLType::kShort4; |
| } |
| } else { |
| switch (u.type) { |
| case Type::kFloat: return SkSLType::kFloat; |
| case Type::kFloat2: return SkSLType::kFloat2; |
| case Type::kFloat3: return SkSLType::kFloat3; |
| case Type::kFloat4: return SkSLType::kFloat4; |
| case Type::kFloat2x2: return SkSLType::kFloat2x2; |
| case Type::kFloat3x3: return SkSLType::kFloat3x3; |
| case Type::kFloat4x4: return SkSLType::kFloat4x4; |
| case Type::kInt: return SkSLType::kInt; |
| case Type::kInt2: return SkSLType::kInt2; |
| case Type::kInt3: return SkSLType::kInt3; |
| case Type::kInt4: return SkSLType::kInt4; |
| } |
| } |
| SkUNREACHABLE; |
| } |
| |
| const char* ShaderCodeDictionary::addTextToArena(std::string_view text) { |
| char* textInArena = fArena.makeArrayDefault<char>(text.size() + 1); |
| memcpy(textInArena, text.data(), text.size()); |
| textInArena[text.size()] = '\0'; |
| return textInArena; |
| } |
| |
| SkSpan<const Uniform> ShaderCodeDictionary::convertUniforms(const SkRuntimeEffect* effect) { |
| using rteUniform = SkRuntimeEffect::Uniform; |
| SkSpan<const rteUniform> uniforms = effect->uniforms(); |
| |
| // Convert the SkRuntimeEffect::Uniform array into its Uniform equivalent. |
| int numUniforms = uniforms.size(); |
| Uniform* uniformArray = fArena.makeInitializedArray<Uniform>(numUniforms, [&](int index) { |
| const rteUniform* u; |
| u = &uniforms[index]; |
| |
| // The existing uniform names live in the passed-in SkRuntimeEffect and may eventually |
| // disappear. Copy them into fArena. (It's safe to do this within makeInitializedArray; the |
| // entire array is allocated in one big slab before any initialization calls are done.) |
| const char* name = this->addTextToArena(u->name); |
| |
| // Add one Uniform to our array. |
| SkSLType type = uniform_type_to_sksl_type(*u); |
| return (u->flags & rteUniform::kArray_Flag) ? Uniform(name, type, u->count) |
| : Uniform(name, type); |
| }); |
| |
| return SkSpan<const Uniform>(uniformArray, numUniforms); |
| } |
| |
| int ShaderCodeDictionary::findOrCreateRuntimeEffectSnippet(const SkRuntimeEffect* effect) { |
| // Use the combination of {SkSL program hash, uniform size} as our key. |
| // In the unfortunate event of a hash collision, at least we'll have the right amount of |
| // uniform data available. |
| RuntimeEffectKey key; |
| key.fHash = SkRuntimeEffectPriv::Hash(*effect); |
| key.fUniformSize = effect->uniformSize(); |
| |
| SkAutoSpinlock lock{fSpinLock}; |
| |
| int32_t* existingCodeSnippetID = fRuntimeEffectMap.find(key); |
| if (existingCodeSnippetID) { |
| return *existingCodeSnippetID; |
| } |
| |
| SkEnumBitMask<SnippetRequirementFlags> snippetFlags = SnippetRequirementFlags::kNone; |
| if (effect->allowShader()) { |
| snippetFlags |= SnippetRequirementFlags::kLocalCoords; |
| } |
| if (effect->allowBlender()) { |
| snippetFlags |= SnippetRequirementFlags::kDestColor; |
| } |
| int newCodeSnippetID = this->addUserDefinedSnippet("RuntimeEffect", |
| this->convertUniforms(effect), |
| snippetFlags, |
| /*texturesAndSamplers=*/{}, |
| kRuntimeShaderName, |
| GenerateRuntimeShaderExpression, |
| GenerateRuntimeShaderPreamble, |
| (int)effect->children().size(), |
| /*dataPayloadExpectations=*/{}); |
| fRuntimeEffectMap.set(key, newCodeSnippetID); |
| return newCodeSnippetID; |
| } |
| |
| ShaderCodeDictionary::ShaderCodeDictionary() { |
| // The 0th index is reserved as invalid |
| fEntryVector.push_back(nullptr); |
| |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kError] = { |
| "Error", |
| { }, // no uniforms |
| SnippetRequirementFlags::kNone, |
| { }, // no samplers |
| kErrorName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kPassthroughShader] = { |
| "PassthroughShader", |
| { }, // no uniforms |
| SnippetRequirementFlags::kPriorStageOutput, |
| { }, // no samplers |
| kPassthroughShaderName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kPassthroughBlender] = { |
| "PassthroughBlender", |
| {}, // no uniforms |
| SnippetRequirementFlags::kPriorStageOutput | SnippetRequirementFlags::kDestColor, |
| {}, // no samplers |
| kPassthroughBlenderName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| {} // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kSolidColorShader] = { |
| "SolidColor", |
| SkSpan(kSolidShaderUniforms), |
| SnippetRequirementFlags::kNone, |
| { }, // no samplers |
| kSolidShaderName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kLinearGradientShader4] = { |
| "LinearGradient4", |
| SkSpan(kLinearGradientUniforms4), |
| SnippetRequirementFlags::kLocalCoords, |
| { }, // no samplers |
| kLinearGradient4Name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kLinearGradientShader8] = { |
| "LinearGradient8", |
| SkSpan(kLinearGradientUniforms8), |
| SnippetRequirementFlags::kLocalCoords, |
| { }, // no samplers |
| kLinearGradient8Name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kRadialGradientShader4] = { |
| "RadialGradient4", |
| SkSpan(kRadialGradientUniforms4), |
| SnippetRequirementFlags::kLocalCoords, |
| { }, // no samplers |
| kRadialGradient4Name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kRadialGradientShader8] = { |
| "RadialGradient8", |
| SkSpan(kRadialGradientUniforms8), |
| SnippetRequirementFlags::kLocalCoords, |
| { }, // no samplers |
| kRadialGradient8Name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kSweepGradientShader4] = { |
| "SweepGradient4", |
| SkSpan(kSweepGradientUniforms4), |
| SnippetRequirementFlags::kLocalCoords, |
| { }, // no samplers |
| kSweepGradient4Name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kSweepGradientShader8] = { |
| "SweepGradient8", |
| SkSpan(kSweepGradientUniforms8), |
| SnippetRequirementFlags::kLocalCoords, |
| { }, // no samplers |
| kSweepGradient8Name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kConicalGradientShader4] = { |
| "ConicalGradient4", |
| SkSpan(kConicalGradientUniforms4), |
| SnippetRequirementFlags::kLocalCoords, |
| { }, // no samplers |
| kConicalGradient4Name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kConicalGradientShader8] = { |
| "ConicalGradient8", |
| SkSpan(kConicalGradientUniforms8), |
| SnippetRequirementFlags::kLocalCoords, |
| { }, // no samplers |
| kConicalGradient8Name, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kLocalMatrixShader] = { |
| "LocalMatrixShader", |
| SkSpan(kLocalMatrixShaderUniforms), |
| (SnippetRequirementFlags::kPriorStageOutput | |
| SnippetRequirementFlags::kLocalCoords), |
| { }, // no samplers |
| kLocalMatrixShaderName, |
| GenerateDefaultExpression, |
| GenerateLocalMatrixPreamble, |
| kNumLocalMatrixShaderChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kImageShader] = { |
| "ImageShader", |
| SkSpan(kImageShaderUniforms), |
| SnippetRequirementFlags::kLocalCoords, |
| SkSpan(kISTexturesAndSamplers), |
| kImageShaderName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kPorterDuffBlendShader] = { |
| "PorterDuffBlendShader", |
| SkSpan(kPorterDuffBlendShaderUniforms), |
| SnippetRequirementFlags::kNone, |
| { }, // no samplers |
| kPorterDuffBlendShaderName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNumBlendShaderChildren, |
| { } // no data payload |
| }; |
| |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kBlendShader] = { |
| "BlendShader", |
| SkSpan(kBlendShaderUniforms), |
| SnippetRequirementFlags::kNone, |
| { }, // no samplers |
| kBlendShaderName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNumBlendShaderChildren, |
| { } // no data payload |
| }; |
| |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kColorFilterShader] = { |
| "ColorFilterShader", |
| {}, // no uniforms |
| SnippetRequirementFlags::kNone, |
| { }, // no samplers |
| kColorFilterShaderName, |
| GenerateDefaultExpression, |
| GenerateNestedChildrenPreamble, |
| kNumColorFilterShaderChildren, |
| { } // no data payload |
| }; |
| |
| // SkColorFilter snippets |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kMatrixColorFilter] = { |
| "MatrixColorFilter", |
| SkSpan(kMatrixColorFilterUniforms), |
| SnippetRequirementFlags::kPriorStageOutput, |
| { }, // no samplers |
| kMatrixColorFilterName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kBlendColorFilter] = { |
| "BlendColorFilter", |
| SkSpan(kBlendColorFilterUniforms), |
| SnippetRequirementFlags::kPriorStageOutput, |
| { }, // no samplers |
| kBlendColorFilterName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kComposeColorFilter] = { |
| "ComposeColorFilter", |
| { }, // no uniforms |
| SnippetRequirementFlags::kPriorStageOutput, |
| { }, // no samplers |
| kComposeColorFilterName, |
| GenerateDefaultExpression, |
| GenerateNestedChildrenPreamble, |
| kNumComposeColorFilterChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kTableColorFilter] = { |
| "TableColorFilter", |
| { }, // no uniforms |
| SnippetRequirementFlags::kPriorStageOutput, |
| SkSpan(kTableColorFilterTexturesAndSamplers), |
| kTableColorFilterName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kGaussianColorFilter] = { |
| "GaussianColorFilter", |
| { }, // no uniforms |
| SnippetRequirementFlags::kPriorStageOutput, |
| { }, // no samplers |
| kGaussianColorFilterName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kColorSpaceXformColorFilter] = { |
| "ColorSpaceTransform", |
| SkSpan(kColorSpaceTransformUniforms), |
| SnippetRequirementFlags::kPriorStageOutput, |
| { }, // no samplers |
| kColorSpaceTransformName, |
| GenerateDefaultExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kFixedFunctionBlender] = { |
| "FixedFunctionBlender", |
| { }, // no uniforms |
| SnippetRequirementFlags::kNone, |
| { }, // no samplers |
| "FF-blending", // fixed function blending doesn't use static SkSL |
| GenerateFixedFunctionBlenderExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| kFixedFunctionDataFields |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kShaderBasedBlender] = { |
| "ShaderBasedBlender", |
| SkSpan(kShaderBasedBlenderUniforms), |
| SnippetRequirementFlags::kNone, |
| { }, // no samplers |
| kBlendHelperName, |
| GenerateShaderBasedBlenderExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| fBuiltInCodeSnippets[(int) BuiltInCodeSnippetID::kPrimitiveColorShaderBasedBlender] = { |
| "PrimitiveColorShaderBasedBlender", |
| SkSpan(kShaderBasedBlenderUniforms), |
| SnippetRequirementFlags::kDestColor, |
| { }, // no samplers |
| kBlendHelperName, |
| GenerateShaderBasedBlenderExpression, |
| GenerateDefaultPreamble, |
| kNoChildren, |
| { } // no data payload |
| }; |
| } |
| |
| } // namespace skgpu::graphite |
