kc3-lang/angle/src/libGLESv2/renderer/Renderer.cpp

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• Author : Geoff Lang
  Date : 2014-06-18 18:08:57
  Hash : 591e6afe
  Message : Add support for ANGLE_platform_angle. BUG=angle:490 Change-Id: If3c897a9ae3d27b96e4b9bf9475a9ac23a1090ba Reviewed-on: https://chromium-review.googlesource.com/185396 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/libGLESv2/renderer/Renderer.cpp

• #include "precompiled.h"
  //
  // Copyright (c) 2012-2014 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.
  //
  
  // Renderer.cpp: Implements EGL dependencies for creating and destroying Renderer instances.
  
  #include <EGL/eglext.h>
  #include "libGLESv2/main.h"
  #include "libGLESv2/Program.h"
  #include "libGLESv2/renderer/Renderer.h"
  #include "common/utilities.h"
  #include "third_party/trace_event/trace_event.h"
  #include "libGLESv2/Shader.h"
  
  #if defined (ANGLE_ENABLE_D3D9)
  #include "libGLESv2/renderer/d3d/d3d9/Renderer9.h"
  #endif // ANGLE_ENABLE_D3D9
  
  #if defined (ANGLE_ENABLE_D3D11)
  #include "libGLESv2/renderer/d3d/d3d11/Renderer11.h"
  #endif // ANGLE_ENABLE_D3D11
  
  #if !defined(ANGLE_DEFAULT_D3D11)
  // Enables use of the Direct3D 11 API for a default display, when available
  #define ANGLE_DEFAULT_D3D11 0
  #endif
  
  namespace rx
  {
  
  Renderer::Renderer(egl::Display *display)
      : mDisplay(display),
        mCapsInitialized(false),
        mCurrentClientVersion(2)
  {
  }
  
  Renderer::~Renderer()
  {
      gl::Shader::releaseCompiler();
  }
  
  const gl::Caps &Renderer::getRendererCaps() const
  {
      if (!mCapsInitialized)
      {
          generateCaps(&mCaps, &mTextureCaps, &mExtensions);
          mCapsInitialized = true;
      }
  
      return mCaps;
  }
  
  const gl::TextureCapsMap &Renderer::getRendererTextureCaps() const
  {
      if (!mCapsInitialized)
      {
          generateCaps(&mCaps, &mTextureCaps, &mExtensions);
          mCapsInitialized = true;
      }
  
      return mTextureCaps;
  }
  
  const gl::Extensions &Renderer::getRendererExtensions() const
  {
      if (!mCapsInitialized)
      {
          generateCaps(&mCaps, &mTextureCaps, &mExtensions);
          mCapsInitialized = true;
      }
  
      return mExtensions;
  }
  
  typedef Renderer *(*CreateRendererFunction)(egl::Display*, EGLNativeDisplayType, EGLint);
  
  template <typename RendererType>
  Renderer *CreateRenderer(egl::Display *display, EGLNativeDisplayType nativeDisplay, EGLint requestedDisplayType)
  {
      return new RendererType(display, nativeDisplay, requestedDisplayType);
  }
  
  }
  
  extern "C"
  {
  
  rx::Renderer *glCreateRenderer(egl::Display *display, EGLNativeDisplayType nativeDisplay, EGLint requestedDisplayType)
  {
      std::vector<rx::CreateRendererFunction> rendererCreationFunctions;
  
  #   if defined(ANGLE_ENABLE_D3D11)
          if (nativeDisplay == EGL_D3D11_ELSE_D3D9_DISPLAY_ANGLE ||
              nativeDisplay == EGL_D3D11_ONLY_DISPLAY_ANGLE ||
              requestedDisplayType == EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE ||
              requestedDisplayType == EGL_PLATFORM_ANGLE_TYPE_D3D11_WARP_ANGLE)
          {
              rendererCreationFunctions.push_back(rx::CreateRenderer<rx::Renderer11>);
          }
  #   endif
  
  #   if defined(ANGLE_ENABLE_D3D9)
          if (nativeDisplay == EGL_D3D11_ELSE_D3D9_DISPLAY_ANGLE ||
              requestedDisplayType == EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE)
          {
              rendererCreationFunctions.push_back(rx::CreateRenderer<rx::Renderer9>);
          }
  #   endif
  
      if (nativeDisplay != EGL_D3D11_ELSE_D3D9_DISPLAY_ANGLE &&
          nativeDisplay != EGL_D3D11_ONLY_DISPLAY_ANGLE &&
          requestedDisplayType == EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE)
      {
          // The default display is requested, try the D3D9 and D3D11 renderers, order them using
          // the definition of ANGLE_DEFAULT_D3D11
  #       if ANGLE_DEFAULT_D3D11
  #           if defined(ANGLE_ENABLE_D3D11)
                  rendererCreationFunctions.push_back(rx::CreateRenderer<rx::Renderer11>);
  #           endif
  #           if defined(ANGLE_ENABLE_D3D9)
                  rendererCreationFunctions.push_back(rx::CreateRenderer<rx::Renderer9>);
  #           endif
  #       else
  #           if defined(ANGLE_ENABLE_D3D9)
                  rendererCreationFunctions.push_back(rx::CreateRenderer<rx::Renderer9>);
  #           endif
  #           if defined(ANGLE_ENABLE_D3D11)
                  rendererCreationFunctions.push_back(rx::CreateRenderer<rx::Renderer11>);
  #           endif
  #       endif
      }
  
      for (size_t i = 0; i < rendererCreationFunctions.size(); i++)
      {
          rx::Renderer *renderer = rendererCreationFunctions[i](display, nativeDisplay, requestedDisplayType);
          if (renderer->initialize() == EGL_SUCCESS)
          {
              return renderer;
          }
          else
          {
              // Failed to create the renderer, try the next
              SafeDelete(renderer);
          }
      }
  
      return NULL;
  }
  
  void glDestroyRenderer(rx::Renderer *renderer)
  {
      delete renderer;
  }
  
  }