kc3-lang/angle/src/libANGLE/renderer/d3d/RenderbufferD3D.cpp

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• Hash : 8cf813c7
  Author :
  Date : 2015-05-04T12:55:18
  

  Query attachment render targets from Impl class.
  
  *re-land with fix for D3D9*
  
  This allows us to eradicate the GetAttachmentRenderTarget methods.
  This improves potential performance, at the cost of exposing a
  Renderer-specific function at the API object level.
  
  BUG=angleproject:963
  
  Change-Id: Iee9f985ddaed668df0c622228004b348eb4d2ea8
  Reviewed-on: https://chromium-review.googlesource.com/269006
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/d3d/RenderbufferD3D.cpp

• //
  // Copyright (c) 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.
  //
  
  // RenderbufferD3d.cpp: Implements the RenderbufferD3D class, a specialization of RenderbufferImpl
  
  
  #include "libANGLE/renderer/d3d/RenderbufferD3D.h"
  
  #include "libANGLE/renderer/d3d/RendererD3D.h"
  #include "libANGLE/renderer/d3d/RenderTargetD3D.h"
  
  namespace rx
  {
  RenderbufferD3D::RenderbufferD3D(RendererD3D *renderer) : mRenderer(renderer)
  {
      mRenderTarget = NULL;
  }
  
  RenderbufferD3D::~RenderbufferD3D()
  {
      SafeDelete(mRenderTarget);
  }
  
  gl::Error RenderbufferD3D::setStorage(GLenum internalformat, size_t width, size_t height)
  {
      return setStorageMultisample(0, internalformat, width, height);
  }
  
  gl::Error RenderbufferD3D::setStorageMultisample(size_t samples, GLenum internalformat, size_t width, size_t height)
  {
      // If the renderbuffer parameters are queried, the calling function
      // will expect one of the valid renderbuffer formats for use in
      // glRenderbufferStorage, but we should create depth and stencil buffers
      // as DEPTH24_STENCIL8
      GLenum creationFormat = internalformat;
      if (internalformat == GL_DEPTH_COMPONENT16 || internalformat == GL_STENCIL_INDEX8)
      {
          creationFormat = GL_DEPTH24_STENCIL8_OES;
      }
  
      // ANGLE_framebuffer_multisample states GL_OUT_OF_MEMORY is generated on a failure to create
      // the specified storage.
      // Because ES 3.0 already knows the exact number of supported samples, it would already have been
      // validated and generated GL_INVALID_VALUE.
      const gl::TextureCaps &formatCaps = mRenderer->getRendererTextureCaps().get(creationFormat);
      if (samples > formatCaps.getMaxSamples())
      {
          return gl::Error(GL_OUT_OF_MEMORY, "Renderbuffer format does not support %u samples, %u is the maximum.",
                           samples, formatCaps.getMaxSamples());
      }
  
      RenderTargetD3D *newRT = NULL;
      gl::Error error = mRenderer->createRenderTarget(width, height, creationFormat, samples, &newRT);
      if (error.isError())
      {
          return error;
      }
  
      SafeDelete(mRenderTarget);
      mRenderTarget = newRT;
  
      return gl::Error(GL_NO_ERROR);
  }
  
  RenderTargetD3D *RenderbufferD3D::getRenderTarget()
  {
      return mRenderTarget;
  }
  
  unsigned int RenderbufferD3D::getRenderTargetSerial() const
  {
      return (mRenderTarget ? mRenderTarget->getSerial() : 0);
  }
  
  gl::Error RenderbufferD3D::getAttachmentRenderTarget(const gl::FramebufferAttachment::Target &target,
                                                       FramebufferAttachmentRenderTarget **rtOut)
  {
      *rtOut = mRenderTarget;
      return gl::Error(GL_NO_ERROR);
  }
  
  }
  

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