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//
// Copyright (c) 2002-2010 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.
//
// Surface.h: Defines the egl::Surface class, representing a drawing surface
// such as the client area of a window, including any back buffers.
// Implements EGLSurface and related functionality. [EGL 1.4] section 2.2 page 3.
#ifndef INCLUDE_SURFACE_H_
#define INCLUDE_SURFACE_H_
#define EGLAPI
#include <EGL/egl.h>
#include <d3d9.h>
#include "common/angleutils.h"
namespace egl
{
class Display;
class Config;
class Surface
{
public:
Surface(Display *display, const egl::Config *config, HWND window);
~Surface();
void release();
void resetSwapChain();
HWND getWindowHandle();
bool swap();
virtual EGLint getWidth() const;
virtual EGLint getHeight() const;
virtual IDirect3DSurface9 *getRenderTarget();
virtual IDirect3DSurface9 *getDepthStencil();
void setSwapInterval(EGLint interval);
bool checkForOutOfDateSwapChain(); // Returns true if swapchain changed due to resize or interval update
private:
DISALLOW_COPY_AND_ASSIGN(Surface);
Display *const mDisplay;
IDirect3DSwapChain9 *mSwapChain;
IDirect3DSurface9 *mBackBuffer;
IDirect3DSurface9 *mDepthStencil;
IDirect3DTexture9 *mFlipTexture;
void subclassWindow();
void unsubclassWindow();
void resetSwapChain(int backbufferWidth, int backbufferHeight);
static DWORD convertInterval(EGLint interval);
void applyFlipState(IDirect3DDevice9 *device);
void restoreState(IDirect3DDevice9 *device);
void writeRecordableFlipState(IDirect3DDevice9 *device);
void releaseRecordedState(IDirect3DDevice9 *device);
IDirect3DStateBlock9 *mFlipState;
IDirect3DStateBlock9 *mPreFlipState;
IDirect3DSurface9 *mPreFlipBackBuffer;
IDirect3DSurface9 *mPreFlipDepthStencil;
const HWND mWindow; // Window that the surface is created for.
bool mWindowSubclassed; // Indicates whether we successfully subclassed mWindow for WM_RESIZE hooking
const egl::Config *mConfig; // EGL config surface was created with
EGLint mHeight; // Height of surface
EGLint mWidth; // Width of surface
// EGLint horizontalResolution; // Horizontal dot pitch
// EGLint verticalResolution; // Vertical dot pitch
// EGLBoolean largestPBuffer; // If true, create largest pbuffer possible
// EGLBoolean mipmapTexture; // True if texture has mipmaps
// EGLint mipmapLevel; // Mipmap level to render to
// EGLenum multisampleResolve; // Multisample resolve behavior
EGLint mPixelAspectRatio; // Display aspect ratio
EGLenum mRenderBuffer; // Render buffer
EGLenum mSwapBehavior; // Buffer swap behavior
// EGLenum textureFormat; // Format of texture: RGB, RGBA, or no texture
// EGLenum textureTarget; // Type of texture: 2D or no texture
// EGLenum vgAlphaFormat; // Alpha format for OpenVG
// EGLenum vgColorSpace; // Color space for OpenVG
EGLint mSwapInterval;
DWORD mPresentInterval;
bool mPresentIntervalDirty;
};
}
#endif // INCLUDE_SURFACE_H_
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