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 GrUnpremulInputFragmentProcessor.fp; do not modify.
10  **************************************************************************************************/
11 #include "GrUnpremulInputFragmentProcessor.h"
12 #if SK_SUPPORT_GPU
13 #include "glsl/GrGLSLFragmentProcessor.h"
14 #include "glsl/GrGLSLFragmentShaderBuilder.h"
15 #include "glsl/GrGLSLProgramBuilder.h"
16 #include "GrTexture.h"
17 #include "SkSLCPP.h"
18 #include "SkSLUtil.h"
19 class GrGLSLUnpremulInputFragmentProcessor : public GrGLSLFragmentProcessor {
20 public:
21     GrGLSLUnpremulInputFragmentProcessor() {}
22     void emitCode(EmitArgs& args) override {
23         GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
24         const GrUnpremulInputFragmentProcessor& _outer =
25                 args.fFp.cast<GrUnpremulInputFragmentProcessor>();
26         (void)_outer;
27         fragBuilder->codeAppendf(
28                 "%s = %s;\nhalf invAlpha = %s.w <= 0.0 ? 0.0 : 1.0 / %s.w;\n%s.xyz *= invAlpha;\n",
29                 args.fOutputColor, args.fInputColor ? args.fInputColor : "half4(1)",
30                 args.fInputColor ? args.fInputColor : "half4(1)",
31                 args.fInputColor ? args.fInputColor : "half4(1)", args.fOutputColor);
32     }
33 
34 private:
35     void onSetData(const GrGLSLProgramDataManager& pdman,
36                    const GrFragmentProcessor& _proc) override {}
37 };
38 GrGLSLFragmentProcessor* GrUnpremulInputFragmentProcessor::onCreateGLSLInstance() const {
39     return new GrGLSLUnpremulInputFragmentProcessor();
40 }
41 void GrUnpremulInputFragmentProcessor::onGetGLSLProcessorKey(const GrShaderCaps& caps,
42                                                              GrProcessorKeyBuilder* b) const {}
43 bool GrUnpremulInputFragmentProcessor::onIsEqual(const GrFragmentProcessor& other) const {
44     const GrUnpremulInputFragmentProcessor& that = other.cast<GrUnpremulInputFragmentProcessor>();
45     (void)that;
46     return true;
47 }
48 GrUnpremulInputFragmentProcessor::GrUnpremulInputFragmentProcessor(
49         const GrUnpremulInputFragmentProcessor& src)
50         : INHERITED(kGrUnpremulInputFragmentProcessor_ClassID, src.optimizationFlags()) {}
51 std::unique_ptr<GrFragmentProcessor> GrUnpremulInputFragmentProcessor::clone() const {
52     return std::unique_ptr<GrFragmentProcessor>(new GrUnpremulInputFragmentProcessor(*this));
53 }
54 #endif
55