1/*
2 * Copyright 2017 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 GrEllipseEffect.fp; do not modify.
10 **************************************************************************************************/
11#ifndef GrEllipseEffect_DEFINED
12#define GrEllipseEffect_DEFINED
13
14#include "include/core/SkM44.h"
15#include "include/core/SkTypes.h"
16
17#include "src/gpu/GrShaderCaps.h"
18
19#include "src/gpu/GrFragmentProcessor.h"
20
21class GrEllipseEffect : public GrFragmentProcessor {
22public:
23 static GrFPResult Make(std::unique_ptr<GrFragmentProcessor> inputFP,
24 GrClipEdgeType edgeType,
25 SkPoint center,
26 SkPoint radii,
27 const GrShaderCaps& caps) {
28 // Small radii produce bad results on devices without full float.
29 if (!caps.floatIs32Bits() && (radii.fX < 0.5f || radii.fY < 0.5f)) {
30 return GrFPFailure(std::move(inputFP));
31 }
32 // Very narrow ellipses produce bad results on devices without full float
33 if (!caps.floatIs32Bits() && (radii.fX > 255 * radii.fY || radii.fY > 255 * radii.fX)) {
34 return GrFPFailure(std::move(inputFP));
35 }
36 // Very large ellipses produce bad results on devices without full float
37 if (!caps.floatIs32Bits() && (radii.fX > 16384 || radii.fY > 16384)) {
38 return GrFPFailure(std::move(inputFP));
39 }
40 return GrFPSuccess(std::unique_ptr<GrFragmentProcessor>(
41 new GrEllipseEffect(std::move(inputFP), edgeType, center, radii)));
42 }
43 GrEllipseEffect(const GrEllipseEffect& src);
44 std::unique_ptr<GrFragmentProcessor> clone() const override;
45 const char* name() const override { return "EllipseEffect"; }
46 GrClipEdgeType edgeType;
47 SkPoint center;
48 SkPoint radii;
49
50private:
51 GrEllipseEffect(std::unique_ptr<GrFragmentProcessor> inputFP,
52 GrClipEdgeType edgeType,
53 SkPoint center,
54 SkPoint radii)
55 : INHERITED(kGrEllipseEffect_ClassID,
56 (OptimizationFlags)(inputFP ? ProcessorOptimizationFlags(inputFP.get())
57 : kAll_OptimizationFlags) &
58 kCompatibleWithCoverageAsAlpha_OptimizationFlag)
59 , edgeType(edgeType)
60 , center(center)
61 , radii(radii) {
62 this->registerChild(std::move(inputFP), SkSL::SampleUsage::PassThrough());
63 }
64 GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
65 void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
66 bool onIsEqual(const GrFragmentProcessor&) const override;
67#if GR_TEST_UTILS
68 SkString onDumpInfo() const override;
69#endif
70 GR_DECLARE_FRAGMENT_PROCESSOR_TEST
71 typedef GrFragmentProcessor INHERITED;
72};
73#endif
74