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 GrDisableColorXP_DEFINED
9 #define GrDisableColorXP_DEFINED
10 
11 #include "GrTypes.h"
12 #include "GrXferProcessor.h"
13 #include "SkRefCnt.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 GrDisableColorXPFactory : public GrXPFactory {
25 public:
26     static const GrXPFactory* Get();
27 
28 private:
29     constexpr GrDisableColorXPFactory() {}
30 
31     AnalysisProperties analysisProperties(const GrProcessorAnalysisColor&,
32                                           const GrProcessorAnalysisCoverage&,
33                                           const GrCaps&,
34                                           GrPixelConfigIsClamped) const override {
35         return AnalysisProperties::kCompatibleWithAlphaAsCoverage |
36                AnalysisProperties::kIgnoresInputColor;
37     }
38 
39     sk_sp<const GrXferProcessor> makeXferProcessor(const GrProcessorAnalysisColor&,
40                                                    GrProcessorAnalysisCoverage,
41                                                    bool hasMixedSamples,
42                                                    const GrCaps&,
43                                                    GrPixelConfigIsClamped) const override;
44 
45     GR_DECLARE_XP_FACTORY_TEST
46 
47     typedef GrXPFactory INHERITED;
48 };
49 #if defined(__GNUC__)
50 #pragma GCC diagnostic pop
51 #endif
52 #if defined(__clang__)
53 #pragma clang diagnostic pop
54 #endif
55 
56 inline const GrXPFactory* GrDisableColorXPFactory::Get() {
57     // If this is constructed as static constexpr by cl.exe (2015 SP2) the vtable is null.
58 #ifdef SK_BUILD_FOR_WIN
59     static const GrDisableColorXPFactory gDisableColorXPFactory;
60 #else
61     static constexpr const GrDisableColorXPFactory gDisableColorXPFactory;
62 #endif
63     return &gDisableColorXPFactory;
64 }
65 
66 #endif
67