michael@0: //
michael@0: // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // Surface.h: Defines the egl::Surface class, representing a drawing surface
michael@0: // such as the client area of a window, including any back buffers.
michael@0: // Implements EGLSurface and related functionality. [EGL 1.4] section 2.2 page 3.
michael@0: 
michael@0: #ifndef LIBEGL_SURFACE_H_
michael@0: #define LIBEGL_SURFACE_H_
michael@0: 
michael@0: #define EGLAPI
michael@0: #include <EGL/egl.h>
michael@0: 
michael@0: #include "common/angleutils.h"
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: class Texture2D;
michael@0: }
michael@0: namespace rx
michael@0: {
michael@0: class Renderer;
michael@0: class SwapChain;
michael@0: }
michael@0: 
michael@0: namespace egl
michael@0: {
michael@0: class Display;
michael@0: class Config;
michael@0: 
michael@0: class Surface
michael@0: {
michael@0:   public:
michael@0:     Surface(Display *display, const egl::Config *config, HWND window, EGLint postSubBufferSupported);
michael@0:     Surface(Display *display, const egl::Config *config, HANDLE shareHandle, EGLint width, EGLint height, EGLenum textureFormat, EGLenum textureTarget);
michael@0: 
michael@0:     ~Surface();
michael@0: 
michael@0:     bool initialize();
michael@0:     void release();
michael@0:     bool resetSwapChain();
michael@0: 
michael@0:     HWND getWindowHandle();
michael@0:     bool swap();
michael@0:     bool postSubBuffer(EGLint x, EGLint y, EGLint width, EGLint height);
michael@0: 
michael@0:     virtual EGLint getWidth() const;
michael@0:     virtual EGLint getHeight() const;
michael@0: 
michael@0:     virtual EGLint isPostSubBufferSupported() const;
michael@0: 
michael@0:     virtual rx::SwapChain *getSwapChain() const;
michael@0: 
michael@0:     void setSwapInterval(EGLint interval);
michael@0:     bool checkForOutOfDateSwapChain();   // Returns true if swapchain changed due to resize or interval update
michael@0: 
michael@0:     virtual EGLenum getTextureFormat() const;
michael@0:     virtual EGLenum getTextureTarget() const;
michael@0:     virtual EGLenum getFormat() const;
michael@0: 
michael@0:     virtual void setBoundTexture(gl::Texture2D *texture);
michael@0:     virtual gl::Texture2D *getBoundTexture() const;
michael@0: 
michael@0: private:
michael@0:     DISALLOW_COPY_AND_ASSIGN(Surface);
michael@0: 
michael@0:     Display *const mDisplay;
michael@0:     rx::Renderer *mRenderer;
michael@0: 
michael@0:     HANDLE mShareHandle;
michael@0:     rx::SwapChain *mSwapChain;
michael@0: 
michael@0:     void subclassWindow();
michael@0:     void unsubclassWindow();
michael@0:     bool resizeSwapChain(int backbufferWidth, int backbufferHeight);
michael@0:     bool resetSwapChain(int backbufferWidth, int backbufferHeight);
michael@0:     bool swapRect(EGLint x, EGLint y, EGLint width, EGLint height);
michael@0: 
michael@0:     const HWND mWindow;            // Window that the surface is created for.
michael@0:     bool mWindowSubclassed;        // Indicates whether we successfully subclassed mWindow for WM_RESIZE hooking
michael@0:     const egl::Config *mConfig;    // EGL config surface was created with
michael@0:     EGLint mHeight;                // Height of surface
michael@0:     EGLint mWidth;                 // Width of surface
michael@0: //  EGLint horizontalResolution;   // Horizontal dot pitch
michael@0: //  EGLint verticalResolution;     // Vertical dot pitch
michael@0: //  EGLBoolean largestPBuffer;     // If true, create largest pbuffer possible
michael@0: //  EGLBoolean mipmapTexture;      // True if texture has mipmaps
michael@0: //  EGLint mipmapLevel;            // Mipmap level to render to
michael@0: //  EGLenum multisampleResolve;    // Multisample resolve behavior
michael@0:     EGLint mPixelAspectRatio;      // Display aspect ratio
michael@0:     EGLenum mRenderBuffer;         // Render buffer
michael@0:     EGLenum mSwapBehavior;         // Buffer swap behavior
michael@0:     EGLenum mTextureFormat;        // Format of texture: RGB, RGBA, or no texture
michael@0:     EGLenum mTextureTarget;        // Type of texture: 2D or no texture
michael@0: //  EGLenum vgAlphaFormat;         // Alpha format for OpenVG
michael@0: //  EGLenum vgColorSpace;          // Color space for OpenVG
michael@0:     EGLint mSwapInterval;
michael@0:     EGLint mPostSubBufferSupported;
michael@0:     
michael@0:     bool mSwapIntervalDirty;
michael@0:     gl::Texture2D *mTexture;
michael@0: };
michael@0: }
michael@0: 
michael@0: #endif   // LIBEGL_SURFACE_H_