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/**************************************************************************************************
9 *** This file was autogenerated from GrSingleIntervalGradientColorizer.fp; do not modify.
10 **************************************************************************************************/
11#include "GrSingleIntervalGradientColorizer.h"
12
13#include "src/gpu/GrTexture.h"
14#include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
15#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
16#include "src/gpu/glsl/GrGLSLProgramBuilder.h"
17#include "src/sksl/SkSLCPP.h"
18#include "src/sksl/SkSLUtil.h"
19class GrGLSLSingleIntervalGradientColorizer : public GrGLSLFragmentProcessor {
20public:
21 GrGLSLSingleIntervalGradientColorizer() {}
22 void emitCode(EmitArgs& args) override {
23 GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
24 const GrSingleIntervalGradientColorizer& _outer =
25 args.fFp.cast<GrSingleIntervalGradientColorizer>();
26 (void)_outer;
27 auto start = _outer.start;
28 (void)start;
29 auto end = _outer.end;
30 (void)end;
31 startVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag,
32 kHalf4_GrSLType, "start");
33 endVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag, kHalf4_GrSLType,
34 "end");
35 fragBuilder->codeAppendf("half t = %s.x;\n%s = (1.0 - t) * %s + t * %s;\n",
36 args.fInputColor, args.fOutputColor,
37 args.fUniformHandler->getUniformCStr(startVar),
38 args.fUniformHandler->getUniformCStr(endVar));
39 }
40
41private:
42 void onSetData(const GrGLSLProgramDataManager& pdman,
43 const GrFragmentProcessor& _proc) override {
44 const GrSingleIntervalGradientColorizer& _outer =
45 _proc.cast<GrSingleIntervalGradientColorizer>();
46 {
47 const SkPMColor4f& startValue = _outer.start;
48 if (startPrev != startValue) {
49 startPrev = startValue;
50 pdman.set4fv(startVar, 1, startValue.vec());
51 }
52 const SkPMColor4f& endValue = _outer.end;
53 if (endPrev != endValue) {
54 endPrev = endValue;
55 pdman.set4fv(endVar, 1, endValue.vec());
56 }
57 }
58 }
59 SkPMColor4f startPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN};
60 SkPMColor4f endPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN};
61 UniformHandle startVar;
62 UniformHandle endVar;
63};
64GrGLSLFragmentProcessor* GrSingleIntervalGradientColorizer::onCreateGLSLInstance() const {
65 return new GrGLSLSingleIntervalGradientColorizer();
66}
67void GrSingleIntervalGradientColorizer::onGetGLSLProcessorKey(const GrShaderCaps& caps,
68 GrProcessorKeyBuilder* b) const {}
69bool GrSingleIntervalGradientColorizer::onIsEqual(const GrFragmentProcessor& other) const {
70 const GrSingleIntervalGradientColorizer& that = other.cast<GrSingleIntervalGradientColorizer>();
71 (void)that;
72 if (start != that.start) return false;
73 if (end != that.end) return false;
74 return true;
75}
76GrSingleIntervalGradientColorizer::GrSingleIntervalGradientColorizer(
77 const GrSingleIntervalGradientColorizer& src)
78 : INHERITED(kGrSingleIntervalGradientColorizer_ClassID, src.optimizationFlags())
79 , start(src.start)
80 , end(src.end) {}
81std::unique_ptr<GrFragmentProcessor> GrSingleIntervalGradientColorizer::clone() const {
82 return std::unique_ptr<GrFragmentProcessor>(new GrSingleIntervalGradientColorizer(*this));
83}
84