kc3-lang/angle/src/libANGLE/Display.h

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• Hash : 063d9e78
  Author :
  Date : 2015-11-19T17:24:47
  

  Add support for EGL_EXT_platform_device
  
  This allows an application to use EGLDeviceEXT to initialize EGL.
  
  For example, if an application wants to initialize EGL using an existing D3D11
  device (instead of ANGLE creating its D3D device), then the app may create an
  EGLDeviceEXT using EGL_ANGLE_device_creation_d3d11, and use this device to
  initialize EGL via EGL_EXT_platform_device.
  
  BUG=angleproject:1190
  
  Change-Id: Ife91ce95a63e29eb2b3f05aedfb668e4cac8f5ce
  Reviewed-on: https://chromium-review.googlesource.com/313444
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Austin Kinross <aukinros@microsoft.com>
  

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• src/libANGLE/Display.h

• //
  // Copyright (c) 2002-2013 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.
  //
  
  // Display.h: Defines the egl::Display class, representing the abstract
  // display on which graphics are drawn. Implements EGLDisplay.
  // [EGL 1.4] section 2.1.2 page 3.
  
  #ifndef LIBANGLE_DISPLAY_H_
  #define LIBANGLE_DISPLAY_H_
  
  #include <set>
  #include <vector>
  
  #include "libANGLE/Error.h"
  #include "libANGLE/Caps.h"
  #include "libANGLE/Config.h"
  #include "libANGLE/AttributeMap.h"
  #include "libANGLE/renderer/Renderer.h"
  
  namespace gl
  {
  class Context;
  }
  
  namespace rx
  {
  class DisplayImpl;
  }
  
  namespace egl
  {
  class Device;
  class Image;
  class Surface;
  
  class Display final : angle::NonCopyable
  {
    public:
      ~Display();
  
      Error initialize();
      void terminate();
  
      static egl::Display *GetDisplayFromDevice(void *native_display);
      static egl::Display *GetDisplayFromAttribs(void *native_display, const AttributeMap &attribMap);
  
      static const ClientExtensions &getClientExtensions();
      static const std::string &getClientExtensionString();
  
      std::vector<const Config*> getConfigs(const egl::AttributeMap &attribs) const;
      bool getConfigAttrib(const Config *configuration, EGLint attribute, EGLint *value);
  
      Error createWindowSurface(const Config *configuration, EGLNativeWindowType window, const AttributeMap &attribs,
                                Surface **outSurface);
      Error createPbufferSurface(const Config *configuration, const AttributeMap &attribs, Surface **outSurface);
      Error createPbufferFromClientBuffer(const Config *configuration, EGLClientBuffer shareHandle, const AttributeMap &attribs,
                                          Surface **outSurface);
      Error createPixmapSurface(const Config *configuration, NativePixmapType nativePixmap, const AttributeMap &attribs,
                                Surface **outSurface);
  
      Error createImage(gl::Context *context,
                        EGLenum target,
                        EGLClientBuffer buffer,
                        const AttributeMap &attribs,
                        Image **outImage);
  
      Error createContext(const Config *configuration, gl::Context *shareContext, const AttributeMap &attribs,
                          gl::Context **outContext);
  
      Error makeCurrent(egl::Surface *drawSurface, egl::Surface *readSurface, gl::Context *context);
  
      void destroySurface(egl::Surface *surface);
      void destroyImage(egl::Image *image);
      void destroyContext(gl::Context *context);
  
      bool isInitialized() const;
      bool isValidConfig(const Config *config) const;
      bool isValidContext(gl::Context *context) const;
      bool isValidSurface(egl::Surface *surface) const;
      bool isValidImage(const Image *image) const;
      bool isValidNativeWindow(EGLNativeWindowType window) const;
  
      static bool isValidDisplay(const egl::Display *display);
      static bool isValidNativeDisplay(EGLNativeDisplayType display);
      static bool hasExistingWindowSurface(EGLNativeWindowType window);
  
      bool isDeviceLost() const;
      bool testDeviceLost();
      void notifyDeviceLost();
  
      const Caps &getCaps() const;
  
      const DisplayExtensions &getExtensions() const;
      const std::string &getExtensionString() const;
      const std::string &getVendorString() const;
  
      const AttributeMap &getAttributeMap() const { return mAttributeMap; }
      EGLNativeDisplayType getNativeDisplayId() const { return mDisplayId; }
  
      rx::DisplayImpl *getImplementation() { return mImplementation; }
      Device *getDevice() const;
      EGLenum getPlatform() const { return mPlatform; }
  
    private:
      Display(EGLenum platform, EGLNativeDisplayType displayId, Device *eglDevice);
  
      void setAttributes(rx::DisplayImpl *impl, const AttributeMap &attribMap);
  
      Error restoreLostDevice();
  
      void initDisplayExtensions();
      void initVendorString();
  
      rx::DisplayImpl *mImplementation;
  
      EGLNativeDisplayType mDisplayId;
      AttributeMap mAttributeMap;
  
      ConfigSet mConfigSet;
  
      typedef std::set<gl::Context*> ContextSet;
      ContextSet mContextSet;
  
      typedef std::set<Image *> ImageSet;
      ImageSet mImageSet;
  
      bool mInitialized;
  
      Caps mCaps;
  
      DisplayExtensions mDisplayExtensions;
      std::string mDisplayExtensionString;
  
      std::string mVendorString;
  
      Device *mDevice;
      EGLenum mPlatform;
  };
  
  }
  
  #endif   // LIBANGLE_DISPLAY_H_
  

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