1 /* 2 * Copyright 2022 Google LLC 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef skgpu_graphite_render_BitmapTextRenderStep_DEFINED 9 #define skgpu_graphite_render_BitmapTextRenderStep_DEFINED 10 11 #include "src/base/SkEnumBitMask.h" 12 #include "src/base/SkVx.h" 13 #include "src/gpu/graphite/Renderer.h" 14 15 #include <string> 16 17 namespace skgpu { 18 enum class MaskFormat : int; 19 } 20 21 namespace skgpu::graphite { 22 23 class DrawParams; 24 class DrawWriter; 25 class PipelineDataGatherer; 26 struct ResourceBindingRequirements; 27 28 class BitmapTextRenderStep final : public RenderStep { 29 public: 30 BitmapTextRenderStep(skgpu::MaskFormat variant); 31 32 ~BitmapTextRenderStep() override; 33 34 std::string vertexSkSL() const override; 35 std::string texturesAndSamplersSkSL(const ResourceBindingRequirements&, 36 int* nextBindingIndex) const override; 37 // For a given BitmapTextRenderStep instance, 38 // we will only use either fragmentColorSkSL() (for color text) 39 // or fragmentCoverageSKSL() (for grayscale and LCD masks), never both. 40 const char* fragmentColorSkSL() const override; 41 const char* fragmentCoverageSkSL() const override; 42 43 void writeVertices(DrawWriter*, const DrawParams&, skvx::uint2 ssboIndices) const override; 44 void writeUniformsAndTextures(const DrawParams&, PipelineDataGatherer*) const override; 45 46 private: 47 static SkEnumBitMask<Flags> Flags(skgpu::MaskFormat); 48 }; 49 50 } // namespace skgpu::graphite 51 52 #endif // skgpu_graphite_render_BitmapTextRenderStep_DEFINED 53