GrClampedGradientEffect.cpp 5.5 KB

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  1. /*
  2. * Copyright 2018 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. *** This file was autogenerated from GrClampedGradientEffect.fp; do not modify.
  9. **************************************************************************************************/
  10. #include "GrClampedGradientEffect.h"
  11. #include "include/gpu/GrTexture.h"
  12. #include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
  13. #include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
  14. #include "src/gpu/glsl/GrGLSLProgramBuilder.h"
  15. #include "src/sksl/SkSLCPP.h"
  16. #include "src/sksl/SkSLUtil.h"
  17. class GrGLSLClampedGradientEffect : public GrGLSLFragmentProcessor {
  18. public:
  19. GrGLSLClampedGradientEffect() {}
  20. void emitCode(EmitArgs& args) override {
  21. GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
  22. const GrClampedGradientEffect& _outer = args.fFp.cast<GrClampedGradientEffect>();
  23. (void)_outer;
  24. auto leftBorderColor = _outer.leftBorderColor;
  25. (void)leftBorderColor;
  26. auto rightBorderColor = _outer.rightBorderColor;
  27. (void)rightBorderColor;
  28. auto makePremul = _outer.makePremul;
  29. (void)makePremul;
  30. auto colorsAreOpaque = _outer.colorsAreOpaque;
  31. (void)colorsAreOpaque;
  32. leftBorderColorVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag,
  33. kHalf4_GrSLType, "leftBorderColor");
  34. rightBorderColorVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag,
  35. kHalf4_GrSLType, "rightBorderColor");
  36. SkString _child1("_child1");
  37. this->emitChild(_outer.gradLayout_index, &_child1, args);
  38. fragBuilder->codeAppendf(
  39. "half4 t = %s;\nif (!%s && t.y < 0.0) {\n %s = half4(0.0);\n} else if (t.x < "
  40. "0.0) {\n %s = %s;\n} else if (t.x > 1.0) {\n %s = %s;\n} else {",
  41. _child1.c_str(),
  42. (_outer.childProcessor(_outer.gradLayout_index).preservesOpaqueInput() ? "true"
  43. : "false"),
  44. args.fOutputColor, args.fOutputColor,
  45. args.fUniformHandler->getUniformCStr(leftBorderColorVar), args.fOutputColor,
  46. args.fUniformHandler->getUniformCStr(rightBorderColorVar));
  47. SkString _input0("t");
  48. SkString _child0("_child0");
  49. this->emitChild(_outer.colorizer_index, _input0.c_str(), &_child0, args);
  50. fragBuilder->codeAppendf("\n %s = %s;\n}\n@if (%s) {\n %s.xyz *= %s.w;\n}\n",
  51. args.fOutputColor, _child0.c_str(),
  52. (_outer.makePremul ? "true" : "false"), args.fOutputColor,
  53. args.fOutputColor);
  54. }
  55. private:
  56. void onSetData(const GrGLSLProgramDataManager& pdman,
  57. const GrFragmentProcessor& _proc) override {
  58. const GrClampedGradientEffect& _outer = _proc.cast<GrClampedGradientEffect>();
  59. {
  60. const SkPMColor4f& leftBorderColorValue = _outer.leftBorderColor;
  61. if (leftBorderColorPrev != leftBorderColorValue) {
  62. leftBorderColorPrev = leftBorderColorValue;
  63. pdman.set4fv(leftBorderColorVar, 1, leftBorderColorValue.vec());
  64. }
  65. const SkPMColor4f& rightBorderColorValue = _outer.rightBorderColor;
  66. if (rightBorderColorPrev != rightBorderColorValue) {
  67. rightBorderColorPrev = rightBorderColorValue;
  68. pdman.set4fv(rightBorderColorVar, 1, rightBorderColorValue.vec());
  69. }
  70. }
  71. }
  72. SkPMColor4f leftBorderColorPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN};
  73. SkPMColor4f rightBorderColorPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN};
  74. UniformHandle leftBorderColorVar;
  75. UniformHandle rightBorderColorVar;
  76. };
  77. GrGLSLFragmentProcessor* GrClampedGradientEffect::onCreateGLSLInstance() const {
  78. return new GrGLSLClampedGradientEffect();
  79. }
  80. void GrClampedGradientEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
  81. GrProcessorKeyBuilder* b) const {
  82. b->add32((int32_t)makePremul);
  83. }
  84. bool GrClampedGradientEffect::onIsEqual(const GrFragmentProcessor& other) const {
  85. const GrClampedGradientEffect& that = other.cast<GrClampedGradientEffect>();
  86. (void)that;
  87. if (leftBorderColor != that.leftBorderColor) return false;
  88. if (rightBorderColor != that.rightBorderColor) return false;
  89. if (makePremul != that.makePremul) return false;
  90. if (colorsAreOpaque != that.colorsAreOpaque) return false;
  91. return true;
  92. }
  93. GrClampedGradientEffect::GrClampedGradientEffect(const GrClampedGradientEffect& src)
  94. : INHERITED(kGrClampedGradientEffect_ClassID, src.optimizationFlags())
  95. , colorizer_index(src.colorizer_index)
  96. , gradLayout_index(src.gradLayout_index)
  97. , leftBorderColor(src.leftBorderColor)
  98. , rightBorderColor(src.rightBorderColor)
  99. , makePremul(src.makePremul)
  100. , colorsAreOpaque(src.colorsAreOpaque) {
  101. this->registerChildProcessor(src.childProcessor(colorizer_index).clone());
  102. this->registerChildProcessor(src.childProcessor(gradLayout_index).clone());
  103. }
  104. std::unique_ptr<GrFragmentProcessor> GrClampedGradientEffect::clone() const {
  105. return std::unique_ptr<GrFragmentProcessor>(new GrClampedGradientEffect(*this));
  106. }