text: /*
   * Copyright 2015 Google Inc.
   *
   * Use of this source code is governed by a BSD-style license that can be
   * found in the LICENSE file.
   */
  
  #ifndef SK_COMMON_FLAGS_CONFIG_H
  #define SK_COMMON_FLAGS_CONFIG_H
  
  #include "tools/flags/CommandLineFlags.h"
  #include "tools/gpu/GrContextFactory.h"
  
  DECLARE_string(config);
  
  class SkCommandLineConfigGpu;
  class SkCommandLineConfigSvg;
  
  // SkCommandLineConfig represents a Skia rendering configuration string.
  // The string has following form:
  // tag:
  //   [via-]*backend
  // where 'backend' consists of chars excluding hyphen
  // and each 'via' consists of chars excluding hyphen.
  class SkCommandLineConfig {
   public:
    SkCommandLineConfig(
        const SkString& tag, const SkString& backend, const SkTArray<SkString>& viaParts);
    virtual ~SkCommandLineConfig();
    virtual const SkCommandLineConfigGpu* asConfigGpu() const { return nullptr; }
    virtual const SkCommandLineConfigSvg* asConfigSvg() const { return nullptr; }
    const SkString& getTag() const { return fTag; }
    const SkString& getBackend() const { return fBackend; }
    const SkTArray<SkString>& getViaParts() const { return fViaParts; }
  
   private:
    SkString fTag;
    SkString fBackend;
    SkTArray<SkString> fViaParts;
  };
  
  // SkCommandLineConfigGpu is a SkCommandLineConfig that extracts information out of the backend
  // part of the tag. It is constructed tags that have:
  // * backends of form "gpu[option=value,option2=value,...]"
  // * backends that represent a shorthand of above (such as "glmsaa16" representing
  // "gpu(api=gl,samples=16)")
  class SkCommandLineConfigGpu : public SkCommandLineConfig {
   public:
    enum class SurfType { kDefault, kBackendTexture, kBackendRenderTarget };
    typedef sk_gpu_test::GrContextFactory::ContextType ContextType;
    typedef sk_gpu_test::GrContextFactory::ContextOverrides ContextOverrides;
  
    SkCommandLineConfigGpu(
        const SkString& tag, const SkTArray<SkString>& viaParts, ContextType contextType,
        bool fakeGLESVer2, bool useDIText, int samples, SkColorType colorType, SkAlphaType alphaType,
        sk_sp<SkColorSpace> colorSpace, bool useStencilBuffers, bool testThreading,
        int testPersistentCache, bool testPrecompile, bool useDDLSink, bool OOPRish, SurfType);
  
    const SkCommandLineConfigGpu* asConfigGpu() const override { return this; }
    ContextType getContextType() const { return fContextType; }
    ContextOverrides getContextOverrides() const { return fContextOverrides; }
    bool getUseDIText() const { return fUseDIText; }
    int getSamples() const { return fSamples; }
    SkColorType getColorType() const { return fColorType; }
    SkAlphaType getAlphaType() const { return fAlphaType; }
    SkColorSpace* getColorSpace() const { return fColorSpace.get(); }
    bool getTestThreading() const { return fTestThreading; }
    int getTestPersistentCache() const { return fTestPersistentCache; }
    bool getTestPrecompile() const { return fTestPrecompile; }
    bool getUseDDLSink() const { return fUseDDLSink; }
    bool getOOPRish() const { return fOOPRish; }
    SurfType getSurfType() const { return fSurfType; }
  
   private:
    ContextType fContextType;
    ContextOverrides fContextOverrides;
    bool fUseDIText;
    int fSamples;
    SkColorType fColorType;
    SkAlphaType fAlphaType;
    sk_sp<SkColorSpace> fColorSpace;
    bool fTestThreading;
    int fTestPersistentCache;
    bool fTestPrecompile;
    bool fUseDDLSink;
    bool fOOPRish;
    SurfType fSurfType;
  };
  
  // SkCommandLineConfigSvg is a SkCommandLineConfig that extracts information out of the backend
  // part of the tag. It is constructed tags that have:
  // * backends of form "svg[option=value,option2=value,...]"
  class SkCommandLineConfigSvg : public SkCommandLineConfig {
   public:
    SkCommandLineConfigSvg(const SkString& tag, const SkTArray<SkString>& viaParts, int pageIndex);
    const SkCommandLineConfigSvg* asConfigSvg() const override { return this; }
  
    int getPageIndex() const { return fPageIndex; }
  
   private:
    int fPageIndex;
  };
  
  typedef SkTArray<std::unique_ptr<SkCommandLineConfig>, true> SkCommandLineConfigArray;
  void ParseConfigs(
      const CommandLineFlags::StringArray& configList, SkCommandLineConfigArray* outResult);
  
  #endif
  