1 /*
2  * Copyright 2015 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 SK_COMMON_FLAGS_CONFIG_H
9 #define SK_COMMON_FLAGS_CONFIG_H
10 
11 #include "SkCommandLineFlags.h"
12 
13 #if SK_SUPPORT_GPU
14 #include "GrContextFactory.h"
15 #endif
16 
17 DECLARE_string(config);
18 
19 #if SK_SUPPORT_GPU
20 class SkCommandLineConfigGpu;
21 #endif
22 
23 // SkCommandLineConfig represents a Skia rendering configuration string.
24 // The string has following form:
25 // tag:
26 //   [via-]*backend
27 // where 'backend' consists of chars excluding hyphen or "angle-gl"
28 // and each 'via' consists of chars excluding hyphen.
29 class SkCommandLineConfig {
30   public:
31     SkCommandLineConfig(const SkString& tag, const SkString& backend,
32                         const SkTArray<SkString>& viaParts);
33     virtual ~SkCommandLineConfig();
34 #if SK_SUPPORT_GPU
asConfigGpu()35     virtual const SkCommandLineConfigGpu* asConfigGpu() const { return nullptr; }
36 #endif
getTag()37     const SkString& getTag() const { return fTag; }
getBackend()38     const SkString& getBackend() const { return fBackend; }
getViaParts()39     const SkTArray<SkString>& getViaParts() const { return fViaParts; }
40   private:
41     SkString fTag;
42     SkString fBackend;
43     SkTArray<SkString> fViaParts;
44 };
45 
46 #if SK_SUPPORT_GPU
47 // SkCommandLineConfigGpu is a SkCommandLineConfig that extracts information out of the backend
48 // part of the tag. It is constructed tags that have:
49 // * backends of form "gpu(option=value,option2=value,...)"
50 // * backends that represent a shorthand of above (such as "msaa16" representing "gpu(samples=16)")
51 class SkCommandLineConfigGpu : public SkCommandLineConfig {
52   public:
53     typedef GrContextFactory::GLContextType ContextType;
54     SkCommandLineConfigGpu(const SkString& tag, const SkTArray<SkString>& viaParts,
55                            ContextType contextType, bool useNVPR, bool useDIText, int samples);
asConfigGpu()56     const SkCommandLineConfigGpu* asConfigGpu() const override { return this; }
getContextType()57     ContextType getContextType() const { return fContextType; }
getUseNVPR()58     bool getUseNVPR() const { return fUseNVPR; }
getUseDIText()59     bool getUseDIText() const { return fUseDIText; }
getSamples()60     int getSamples() const { return fSamples; }
61 
62   private:
63     ContextType fContextType;
64     bool fUseNVPR;
65     bool fUseDIText;
66     int fSamples;
67 };
68 #endif
69 
70 typedef SkTArray<SkAutoTDelete<SkCommandLineConfig>, true> SkCommandLineConfigArray;
71 void ParseConfigs(const SkCommandLineFlags::StringArray& configList,
72                   SkCommandLineConfigArray* outResult);
73 
74 #endif
75