submodule/skia/src/shaders/gradients/SkRadialGradient.h

   1 /*
   2  * Copyright 2012 Google Inc.
   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 SkRadialGradient_DEFINED
   9 #define SkRadialGradient_DEFINED
  10
  11 #include "src/shaders/gradients/SkGradientShaderPriv.h"
  12
  13 class SkShaderCodeDictionary;
  14
  15 class SkRadialGradient final : public SkGradientShaderBase {
  16 public:
  17     SkRadialGradient(const SkPoint& center, SkScalar radius, const Descriptor&);
  18
  19     GradientType asAGradient(GradientInfo* info) const override;
  20 #if SK_SUPPORT_GPU
  21     std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(const GrFPArgs&) const override;
  22 #endif
  23 #ifdef SK_ENABLE_SKSL
  24     void addToKey(const SkKeyContext&,
  25                   SkPaintParamsKeyBuilder*,
  26                   SkPipelineDataGatherer*) const override;
  27 #endif
  28 protected:
  29     SkRadialGradient(SkReadBuffer& buffer);
  30     void flatten(SkWriteBuffer& buffer) const override;
  31
  32     void appendGradientStages(SkArenaAlloc* alloc, SkRasterPipeline* tPipeline,
  33                               SkRasterPipeline* postPipeline) const override;
  34
  35     skvm::F32 transformT(skvm::Builder*, skvm::Uniforms*,
  36                          skvm::Coord coord, skvm::I32* mask) const final;
  37
  38 private:
  39     SK_FLATTENABLE_HOOKS(SkRadialGradient)
  40
  41     const SkPoint fCenter;
  42     const SkScalar fRadius;
  43
  44     friend class SkGradientShader;
  45     using INHERITED = SkGradientShaderBase;
  46 };
  47
  48 #endif