kc3-lang/angle/src/libANGLE/renderer/gl/cgl/DisplayCGL.h

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• Hash : e174c358
  Author :
  Date : 2021-02-04T15:14:10
  

  GL: Consolidate glGetString calls
  
  First step for cacheing the result of glGetString calls is mostly
  cleanup.
  
  Bug: chromium:1173672
  Change-Id: I47281a09b9bd5859655d16376977a6eabcfbb3c4
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2676203
  Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/gl/cgl/DisplayCGL.h

• //
  // Copyright 2015 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // DisplayCGL.h: CGL implementation of egl::Display
  
  #ifndef LIBANGLE_RENDERER_GL_CGL_DISPLAYCGL_H_
  #define LIBANGLE_RENDERER_GL_CGL_DISPLAYCGL_H_
  
  #include <thread>
  #include <unordered_set>
  
  #include "libANGLE/renderer/gl/DisplayGL.h"
  
  struct _CGLContextObject;
  typedef _CGLContextObject *CGLContextObj;
  
  struct _CGLPixelFormatObject;
  typedef _CGLPixelFormatObject *CGLPixelFormatObj;
  
  namespace rx
  {
  
  class WorkerContext;
  
  struct EnsureCGLContextIsCurrent : angle::NonCopyable
  {
    public:
      EnsureCGLContextIsCurrent(CGLContextObj context);
      ~EnsureCGLContextIsCurrent();
  
    private:
      CGLContextObj mOldContext;
      bool mResetContext;
  };
  
  class DisplayCGL : public DisplayGL
  {
    public:
      DisplayCGL(const egl::DisplayState &state);
      ~DisplayCGL() override;
  
      egl::Error initialize(egl::Display *display) override;
      void terminate() override;
      egl::Error prepareForCall() override;
      egl::Error releaseThread() override;
  
      egl::Error makeCurrent(egl::Display *display,
                             egl::Surface *drawSurface,
                             egl::Surface *readSurface,
                             gl::Context *context) override;
  
      SurfaceImpl *createWindowSurface(const egl::SurfaceState &state,
                                       EGLNativeWindowType window,
                                       const egl::AttributeMap &attribs) override;
      SurfaceImpl *createPbufferSurface(const egl::SurfaceState &state,
                                        const egl::AttributeMap &attribs) override;
      SurfaceImpl *createPbufferFromClientBuffer(const egl::SurfaceState &state,
                                                 EGLenum buftype,
                                                 EGLClientBuffer clientBuffer,
                                                 const egl::AttributeMap &attribs) override;
      SurfaceImpl *createPixmapSurface(const egl::SurfaceState &state,
                                       NativePixmapType nativePixmap,
                                       const egl::AttributeMap &attribs) override;
  
      ContextImpl *createContext(const gl::State &state,
                                 gl::ErrorSet *errorSet,
                                 const egl::Config *configuration,
                                 const gl::Context *shareContext,
                                 const egl::AttributeMap &attribs) override;
  
      egl::ConfigSet generateConfigs() override;
  
      bool testDeviceLost() override;
      egl::Error restoreLostDevice(const egl::Display *display) override;
  
      bool isValidNativeWindow(EGLNativeWindowType window) const override;
      egl::Error validateClientBuffer(const egl::Config *configuration,
                                      EGLenum buftype,
                                      EGLClientBuffer clientBuffer,
                                      const egl::AttributeMap &attribs) const override;
  
      DeviceImpl *createDevice() override;
  
      egl::Error waitClient(const gl::Context *context) override;
      egl::Error waitNative(const gl::Context *context, EGLint engine) override;
  
      gl::Version getMaxSupportedESVersion() const override;
  
      CGLContextObj getCGLContext() const;
      CGLPixelFormatObj getCGLPixelFormat() const;
  
      WorkerContext *createWorkerContext(std::string *infoLog);
  
      void initializeFrontendFeatures(angle::FrontendFeatures *features) const override;
  
      void populateFeatureList(angle::FeatureList *features) override;
  
      RendererGL *getRenderer() const override;
  
      // Support for dual-GPU MacBook Pros. Used only by ContextCGL. The use of
      // these entry points is gated by the presence of dual GPUs.
      egl::Error referenceDiscreteGPU();
      egl::Error unreferenceDiscreteGPU();
      egl::Error handleGPUSwitch() override;
  
    private:
      egl::Error makeCurrentSurfaceless(gl::Context *context) override;
  
      void generateExtensions(egl::DisplayExtensions *outExtensions) const override;
      void generateCaps(egl::Caps *outCaps) const override;
  
      void checkDiscreteGPUStatus();
  
      std::shared_ptr<RendererGL> mRenderer;
  
      egl::Display *mEGLDisplay;
      CGLContextObj mContext;
      std::unordered_set<std::thread::id> mThreadsWithCurrentContext;
      CGLPixelFormatObj mPixelFormat;
      bool mSupportsGPUSwitching;
      uint64_t mCurrentGPUID;
      CGLPixelFormatObj mDiscreteGPUPixelFormat;
      int mDiscreteGPURefs;
      // This comes from the ANGLE platform's DefaultMonotonicallyIncreasingTime. If the discrete GPU
      // is unref'd for the last time, this is set to the time of that last unref. If it isn't
      // activated again in 10 seconds, the discrete GPU pixel format is deleted.
      double mLastDiscreteGPUUnrefTime;
      bool mDeviceContextIsVolatile = false;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_GL_CGL_DISPLAYCGL_H_
  

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