1 | /* |
2 | * Copyright 2014 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 GrPorterDuffXferProcessor_DEFINED |
9 | #define GrPorterDuffXferProcessor_DEFINED |
10 | |
11 | #include "include/core/SkBlendMode.h" |
12 | #include "include/gpu/GrTypes.h" |
13 | #include "src/gpu/GrXferProcessor.h" |
14 | |
15 | // See the comment above GrXPFactory's definition about this warning suppression. |
16 | #if defined(__GNUC__) |
17 | #pragma GCC diagnostic push |
18 | #pragma GCC diagnostic ignored "-Wnon-virtual-dtor" |
19 | #endif |
20 | #if defined(__clang__) |
21 | #pragma clang diagnostic push |
22 | #pragma clang diagnostic ignored "-Wnon-virtual-dtor" |
23 | #endif |
24 | class GrPorterDuffXPFactory : public GrXPFactory { |
25 | public: |
26 | static const GrXPFactory* Get(SkBlendMode blendMode); |
27 | |
28 | /** Because src-over is so common we special case it for performance reasons. If this returns |
29 | null then the SimpleSrcOverXP() below should be used. */ |
30 | static sk_sp<const GrXferProcessor> MakeSrcOverXferProcessor(const GrProcessorAnalysisColor&, |
31 | GrProcessorAnalysisCoverage, |
32 | bool hasMixedSamples, |
33 | const GrCaps&); |
34 | |
35 | /** Returns a simple non-LCD porter duff blend XP with no optimizations or coverage. */ |
36 | static sk_sp<const GrXferProcessor> MakeNoCoverageXP(SkBlendMode); |
37 | |
38 | /** This XP implements non-LCD src-over using hw blend with no optimizations. It is returned |
39 | by reference because it is global and its ref-cnting methods are not thread safe. */ |
40 | static const GrXferProcessor& SimpleSrcOverXP(); |
41 | |
42 | static AnalysisProperties SrcOverAnalysisProperties(const GrProcessorAnalysisColor&, |
43 | const GrProcessorAnalysisCoverage&, |
44 | const GrCaps&, |
45 | GrClampType); |
46 | |
47 | private: |
48 | constexpr GrPorterDuffXPFactory(SkBlendMode); |
49 | |
50 | sk_sp<const GrXferProcessor> makeXferProcessor(const GrProcessorAnalysisColor&, |
51 | GrProcessorAnalysisCoverage, |
52 | bool hasMixedSamples, |
53 | const GrCaps&, |
54 | GrClampType) const override; |
55 | |
56 | AnalysisProperties analysisProperties(const GrProcessorAnalysisColor&, |
57 | const GrProcessorAnalysisCoverage&, |
58 | const GrCaps&, |
59 | GrClampType) const override; |
60 | |
61 | GR_DECLARE_XP_FACTORY_TEST |
62 | static void TestGetXPOutputTypes(const GrXferProcessor*, int* outPrimary, int* outSecondary); |
63 | |
64 | SkBlendMode fBlendMode; |
65 | |
66 | friend class GrPorterDuffTest; // for TestGetXPOutputTypes() |
67 | typedef GrXPFactory INHERITED; |
68 | }; |
69 | #if defined(__GNUC__) |
70 | #pragma GCC diagnostic pop |
71 | #endif |
72 | #if defined(__clang__) |
73 | #pragma clang diagnostic pop |
74 | #endif |
75 | |
76 | #endif |
77 | |