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

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• Hash : 7e44ec26
  Author :
  Date : 2019-08-26T15:59:48
  

  GL_EXT_multisampled_render_to_texture extension. Part 1.
  
  Adding new parameters for extension without adding any real code change. Since no new code paths were added, we expect all tests to pass as before.
  
  Bug: angleproject:980428
  Change-Id: I551b46a66f422eabd357fd021e00cf266a991efb
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1772377
  Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
  Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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

• //
  // Copyright 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/Context.h"
  #include "libANGLE/Image.h"
  #include "libANGLE/renderer/d3d/ContextD3D.h"
  #include "libANGLE/renderer/d3d/EGLImageD3D.h"
  #include "libANGLE/renderer/d3d/RenderTargetD3D.h"
  #include "libANGLE/renderer/d3d/RendererD3D.h"
  
  namespace rx
  {
  RenderbufferD3D::RenderbufferD3D(const gl::RenderbufferState &state, RendererD3D *renderer)
      : RenderbufferImpl(state), mRenderer(renderer), mRenderTarget(nullptr), mImage(nullptr)
  {}
  
  RenderbufferD3D::~RenderbufferD3D()
  {
      SafeDelete(mRenderTarget);
      mImage = nullptr;
  }
  
  void RenderbufferD3D::onDestroy(const gl::Context *context)
  {
      SafeDelete(mRenderTarget);
  }
  
  angle::Result RenderbufferD3D::setStorage(const gl::Context *context,
                                            GLenum internalformat,
                                            size_t width,
                                            size_t height)
  {
      return setStorageMultisample(context, 0, internalformat, width, height);
  }
  
  angle::Result RenderbufferD3D::setStorageMultisample(const gl::Context *context,
                                                       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->getNativeTextureCaps().get(creationFormat);
      ANGLE_CHECK_GL_ALLOC(GetImplAs<ContextD3D>(context), samples <= formatCaps.getMaxSamples());
  
      RenderTargetD3D *newRT = nullptr;
      ANGLE_TRY(mRenderer->createRenderTarget(context, static_cast<int>(width),
                                              static_cast<int>(height), creationFormat,
                                              static_cast<GLsizei>(samples), &newRT));
  
      SafeDelete(mRenderTarget);
      mImage        = nullptr;
      mRenderTarget = newRT;
  
      return angle::Result::Continue;
  }
  
  angle::Result RenderbufferD3D::setStorageEGLImageTarget(const gl::Context *context,
                                                          egl::Image *image)
  {
      mImage = GetImplAs<EGLImageD3D>(image);
      SafeDelete(mRenderTarget);
  
      return angle::Result::Continue;
  }
  
  angle::Result RenderbufferD3D::getRenderTarget(const gl::Context *context,
                                                 RenderTargetD3D **outRenderTarget)
  {
      if (mImage)
      {
          return mImage->getRenderTarget(context, outRenderTarget);
      }
      else
      {
          *outRenderTarget = mRenderTarget;
          return angle::Result::Continue;
      }
  }
  
  angle::Result RenderbufferD3D::getAttachmentRenderTarget(const gl::Context *context,
                                                           GLenum binding,
                                                           const gl::ImageIndex &imageIndex,
                                                           GLsizei samples,
                                                           FramebufferAttachmentRenderTarget **rtOut)
  {
      return getRenderTarget(context, reinterpret_cast<RenderTargetD3D **>(rtOut));
  }
  
  angle::Result RenderbufferD3D::initializeContents(const gl::Context *context,
                                                    const gl::ImageIndex &imageIndex)
  {
      RenderTargetD3D *renderTarget = nullptr;
      ANGLE_TRY(getRenderTarget(context, &renderTarget));
      return mRenderer->initRenderTarget(context, renderTarget);
  }
  
  }  // namespace rx
  

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