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      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
     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
     35     virtual const SkCommandLineConfigGpu* asConfigGpu() const { return nullptr; }
     36 #endif
     37     const SkString& getTag() const { return fTag; }
     38     const SkString& getBackend() const { return fBackend; }
     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 "glmsaa16" representing
     51 // "gpu(api=gl,samples=16)")
     52 class SkCommandLineConfigGpu : public SkCommandLineConfig {
     53   public:
     54     typedef sk_gpu_test::GrContextFactory::ContextType ContextType;
     55     typedef sk_gpu_test::GrContextFactory::ContextOverrides ContextOverrides;
     56     SkCommandLineConfigGpu(const SkString& tag, const SkTArray<SkString>& viaParts,
     57                            ContextType contextType, bool useNVPR, bool useInstanced, bool useDIText,
     58                            int samples, SkColorType colorType, SkAlphaType alphaType,
     59                            sk_sp<SkColorSpace> colorSpace, bool useStencilBuffers);
     60     const SkCommandLineConfigGpu* asConfigGpu() const override { return this; }
     61     ContextType getContextType() const { return fContextType; }
     62     ContextOverrides getContextOverrides() const { return fContextOverrides; }
     63     bool getUseNVPR() const {
     64         SkASSERT(!(fContextOverrides & ContextOverrides::kRequireNVPRSupport) ||
     65                  !(fContextOverrides & ContextOverrides::kDisableNVPR));
     66         return fContextOverrides & ContextOverrides::kRequireNVPRSupport;
     67     }
     68     bool getUseInstanced() const { return fContextOverrides & ContextOverrides::kUseInstanced; }
     69     bool getUseDIText() const { return fUseDIText; }
     70     int getSamples() const { return fSamples; }
     71     SkColorType getColorType() const { return fColorType; }
     72     SkAlphaType getAlphaType() const { return fAlphaType; }
     73     SkColorSpace* getColorSpace() const { return fColorSpace.get(); }
     74 
     75   private:
     76     ContextType fContextType;
     77     ContextOverrides fContextOverrides;
     78     bool fUseDIText;
     79     int fSamples;
     80     SkColorType fColorType;
     81     SkAlphaType fAlphaType;
     82     sk_sp<SkColorSpace> fColorSpace;
     83 };
     84 #endif
     85 
     86 typedef SkTArray<std::unique_ptr<SkCommandLineConfig>, true> SkCommandLineConfigArray;
     87 void ParseConfigs(const SkCommandLineFlags::StringArray& configList,
     88                   SkCommandLineConfigArray* outResult);
     89 
     90 #endif
     91