kc3-lang/angle/src/libEGL/Surface.cpp

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• Author : alokp@chromium.org
  Date : 2010-03-22 19:33:14
  Hash : ea0e1af4
  Message : Minor reshuffling of directory structure in preparation of ESSL to GLSL compiler work. 1. Added include/GLSLANG which includes compiler API 2. Deleted src/include and moved the header files to the same directory as the corresponding source files 3. Modied include path to be relative to src/. I have only fixed paths for files I moved. We should fix it for all new files at least. It is much easier to see where an included file is coming from. I noticed that a few libGLESv2 source files include headers from libEGL project, which seems wrong. I think we should address this issue. Next step: move compiler source files to compiler/frontend and create two new projects compiler/glsl_backend and compiler/hlsl_backend. Review URL: http://codereview.appspot.com/662042 git-svn-id: https://angleproject.googlecode.com/svn/trunk@62 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/libEGL/Surface.cpp

• //
  // 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.cpp: Implements 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.
  
  #include "Surface.h"
  
  #include "main.h"
  #include "common/debug.h"
  
  namespace egl
  {
  Surface::Surface(IDirect3DDevice9 *device, IDirect3DSwapChain9 *swapChain, IDirect3DSurface9 *depthStencil, EGLint configID) 
      : mSwapChain(swapChain), mConfigID(configID), mDepthStencil(depthStencil)
  {
      mBackBuffer = NULL;
      mRenderTarget = NULL;
  
      mPixelAspectRatio = (EGLint)(1.0 * EGL_DISPLAY_SCALING);   // FIXME: Determine actual pixel aspect ratio
      mRenderBuffer = EGL_BACK_BUFFER;
      mSwapBehavior = EGL_BUFFER_PRESERVED;
  
      if (mSwapChain)
      {
          mSwapChain->AddRef();
          mSwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &mBackBuffer);
  
          D3DSURFACE_DESC description;
          mBackBuffer->GetDesc(&description);
  
          mWidth = description.Width;
          mHeight = description.Height;
  
          HRESULT result = device->CreateRenderTarget(mWidth, mHeight, description.Format, description.MultiSampleType, description.MultiSampleQuality, FALSE, &mRenderTarget, NULL);
  
          if (result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY)
          {
              error(EGL_BAD_ALLOC);
  
              return;
          }
  
          ASSERT(SUCCEEDED(result));
      }
  }
  
  Surface::~Surface()
  {
      if (mSwapChain)
      {
          mSwapChain->Release();
      }
  
      if (mBackBuffer)
      {
          mBackBuffer->Release();
      }
  
      if (mRenderTarget)
      {
          mRenderTarget->Release();
      }
  
      if (mDepthStencil)
      {
          mDepthStencil->Release();
      }
  }
  
  HWND Surface::getWindowHandle()
  {
      if (mSwapChain)
      {
          D3DPRESENT_PARAMETERS presentParameters;
          mSwapChain->GetPresentParameters(&presentParameters);
  
          return presentParameters.hDeviceWindow;
      }
  
      return NULL;
  }
  
  void Surface::swap()
  {
      if (mSwapChain)
      {
          IDirect3DDevice9 *device;
          mSwapChain->GetDevice(&device);
  
          D3DSURFACE_DESC description;
          mBackBuffer->GetDesc(&description);
  
          // Copy the render target into a texture
          IDirect3DTexture9 *texture;
          HRESULT result = device->CreateTexture(mWidth, mHeight, 1, D3DUSAGE_RENDERTARGET, description.Format, D3DPOOL_DEFAULT, &texture, NULL);
  
          if (result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY)
          {
              return error(EGL_BAD_ALLOC);
          }
  
          ASSERT(SUCCEEDED(result));
  
          IDirect3DSurface9 *textureSurface;
          texture->GetSurfaceLevel(0, &textureSurface);
  
          device->StretchRect(mRenderTarget, NULL, textureSurface, NULL, D3DTEXF_NONE);
  
          // Disable all pipeline operations
          device->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE);
          device->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID);
          device->SetRenderState(D3DRS_ALPHATESTENABLE , FALSE);
          device->SetRenderState(D3DRS_ALPHABLENDENABLE , FALSE);
          device->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
          device->SetRenderState(D3DRS_STENCILENABLE, FALSE);
          device->SetRenderState(D3DRS_CLIPPLANEENABLE, 0);
          device->SetRenderState(D3DRS_COLORWRITEENABLE, D3DCOLORWRITEENABLE_ALPHA | D3DCOLORWRITEENABLE_BLUE | D3DCOLORWRITEENABLE_GREEN | D3DCOLORWRITEENABLE_RED);
          device->SetRenderState(D3DRS_SRGBWRITEENABLE, FALSE);
          device->SetPixelShader(NULL);
          device->SetVertexShader(NULL);
  
          // Just sample the texture
          device->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1);
          device->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
          device->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_DISABLE);
          device->SetTexture(0, texture);
          device->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_POINT);
          device->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_POINT);
          device->SetSamplerState(0, D3DSAMP_SRGBTEXTURE, FALSE);
          device->SetFVF(D3DFVF_XYZRHW | D3DFVF_TEX1);
          device->SetRenderTarget(0, mBackBuffer);
  
          // Render the texture upside down into the back buffer
          float quad[4][6] = {{     0 - 0.5f,       0 - 0.5f, 0.0f, 1.0f, 0.0f, 1.0f},
                              {mWidth - 0.5f,       0 - 0.5f, 0.0f, 1.0f, 1.0f, 1.0f},
                              {mWidth - 0.5f, mHeight - 0.5f, 0.0f, 1.0f, 1.0f, 0.0f},
                              {     0 - 0.5f, mHeight - 0.5f, 0.0f, 1.0f, 0.0f, 0.0f}};   // x, y, z, rhw, u, v
  
          device->BeginScene();
          device->DrawPrimitiveUP(D3DPT_TRIANGLEFAN, 2, quad, 6 * sizeof(float));
          device->EndScene();
  
          result = mSwapChain->Present(NULL, NULL, NULL, NULL, D3DPRESENT_INTERVAL_DEFAULT);   // FIXME: Get the swap interval from the associated Display
  
          if (result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY || result == D3DERR_DRIVERINTERNALERROR)
          {
              return error(EGL_BAD_ALLOC);
          }
  
          textureSurface->Release();
          texture->Release();
          device->Release();
      }
  }
  
  EGLint Surface::getWidth() const
  {
      return mWidth;
  }
  
  EGLint Surface::getHeight() const
  {
      return mHeight;
  }
  
  IDirect3DSurface9 *Surface::getRenderTarget()
  {
      if (mRenderTarget)
      {
          mRenderTarget->AddRef();
      }
  
      return mRenderTarget;
  }
  
  IDirect3DSurface9 *Surface::getDepthStencil()
  {
      if (mDepthStencil)
      {
          mDepthStencil->AddRef();
      }
  
      return mDepthStencil;
  }
  }