kc3-lang/angle/src/libANGLE/renderer/d3d/d3d9/Buffer9.cpp

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• Author : Geoff Lang
  Date : 2015-03-20 13:01:02
  Hash : cc6f55dd
  Message : Split Buffer::map into map and mapRange to match the API. BUG=angleproject:681 Change-Id: Ia4bf2b81134a922265ca762f33ac85d9ddbf1a7c Reviewed-on: https://chromium-review.googlesource.com/261890 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Brandon Jones <bajones@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/libANGLE/renderer/d3d/d3d9/Buffer9.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.
  //
  
  // Buffer9.cpp Defines the Buffer9 class.
  
  #include "libANGLE/renderer/d3d/d3d9/Buffer9.h"
  #include "libANGLE/renderer/d3d/d3d9/Renderer9.h"
  
  namespace rx
  {
  
  Buffer9::Buffer9(Renderer9 *renderer)
      : BufferD3D(renderer),
        mRenderer(renderer),
        mSize(0)
  {}
  
  Buffer9::~Buffer9()
  {
      mSize = 0;
  }
  
  gl::Error Buffer9::setData(const void* data, size_t size, GLenum usage)
  {
      if (size > mMemory.size())
      {
          if (!mMemory.resize(size))
          {
              return gl::Error(GL_OUT_OF_MEMORY, "Failed to resize internal buffer.");
          }
      }
  
      mSize = size;
      if (data && size > 0)
      {
          memcpy(mMemory.data(), data, size);
      }
  
      invalidateStaticData();
  
      if (usage == GL_STATIC_DRAW)
      {
          initializeStaticData();
      }
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error Buffer9::getData(const uint8_t **outData)
  {
      *outData = mMemory.data();
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error Buffer9::setSubData(const void* data, size_t size, size_t offset)
  {
      if (offset + size > mMemory.size())
      {
          if (!mMemory.resize(offset + size))
          {
              return gl::Error(GL_OUT_OF_MEMORY, "Failed to resize internal buffer.");
          }
      }
  
      mSize = std::max(mSize, offset + size);
      if (data && size > 0)
      {
          memcpy(mMemory.data() + offset, data, size);
      }
  
      invalidateStaticData();
  
      return gl::Error(GL_NO_ERROR);
  }
  
  gl::Error Buffer9::copySubData(BufferImpl* source, GLintptr sourceOffset, GLintptr destOffset, GLsizeiptr size)
  {
      // Note: this method is currently unreachable
      Buffer9* sourceBuffer = GetAs<Buffer9>(source);
      ASSERT(sourceBuffer);
  
      memcpy(mMemory.data() + destOffset, sourceBuffer->mMemory.data() + sourceOffset, size);
  
      invalidateStaticData();
  
      return gl::Error(GL_NO_ERROR);
  }
  
  // We do not support buffer mapping in D3D9
  gl::Error Buffer9::map(GLenum access, GLvoid **mapPtr)
  {
      UNREACHABLE();
      return gl::Error(GL_INVALID_OPERATION);
  }
  
  gl::Error Buffer9::mapRange(size_t offset, size_t length, GLbitfield access, GLvoid **mapPtr)
  {
      UNREACHABLE();
      return gl::Error(GL_INVALID_OPERATION);
  }
  
  gl::Error Buffer9::unmap(GLboolean *result)
  {
      UNREACHABLE();
      return gl::Error(GL_INVALID_OPERATION);
  }
  
  void Buffer9::markTransformFeedbackUsage()
  {
      UNREACHABLE();
  }
  
  }