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//
// 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(const gl::BufferState &state, Renderer9 *renderer)
: BufferD3D(state, renderer), mSize(0)
{}
Buffer9::~Buffer9()
{
mSize = 0;
}
gl::Error Buffer9::setData(GLenum /*target*/, 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);
}
updateD3DBufferUsage(usage);
invalidateStaticData();
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(GLenum /*target*/, 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);
}
gl::Error Buffer9::markTransformFeedbackUsage()
{
UNREACHABLE();
return gl::Error(GL_INVALID_OPERATION);
}
} // namespace rx
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