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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/Context.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;
}
size_t Buffer9::getSize() const
{
return mSize;
}
bool Buffer9::supportsDirectBinding() const
{
return false;
}
angle::Result Buffer9::setData(const gl::Context *context,
gl::BufferBinding target,
const void *data,
size_t size,
gl::BufferUsage usage)
{
if (size > mMemory.size())
{
ANGLE_CHECK_GL_ALLOC(GetImplAs<Context9>(context), mMemory.resize(size));
}
mSize = size;
if (data && size > 0)
{
memcpy(mMemory.data(), data, size);
}
updateD3DBufferUsage(context, usage);
invalidateStaticData(context);
return angle::Result::Continue;
}
angle::Result Buffer9::getData(const gl::Context *context, const uint8_t **outData)
{
if (mMemory.empty())
{
*outData = nullptr;
}
else
{
*outData = mMemory.data();
}
return angle::Result::Continue;
}
angle::Result Buffer9::setSubData(const gl::Context *context,
gl::BufferBinding target,
const void *data,
size_t size,
size_t offset)
{
if (offset + size > mMemory.size())
{
ANGLE_CHECK_GL_ALLOC(GetImplAs<Context9>(context), mMemory.resize(size + offset));
}
mSize = std::max(mSize, offset + size);
if (data && size > 0)
{
memcpy(mMemory.data() + offset, data, size);
}
invalidateStaticData(context);
return angle::Result::Continue;
}
angle::Result Buffer9::copySubData(const gl::Context *context,
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(context);
return angle::Result::Continue;
}
// We do not support buffer mapping in D3D9
angle::Result Buffer9::map(const gl::Context *context, GLenum access, void **mapPtr)
{
ANGLE_HR_UNREACHABLE(GetImplAs<Context9>(context));
return angle::Result::Stop;
}
angle::Result Buffer9::mapRange(const gl::Context *context,
size_t offset,
size_t length,
GLbitfield access,
void **mapPtr)
{
ANGLE_HR_UNREACHABLE(GetImplAs<Context9>(context));
return angle::Result::Stop;
}
angle::Result Buffer9::unmap(const gl::Context *context, GLboolean *result)
{
ANGLE_HR_UNREACHABLE(GetImplAs<Context9>(context));
return angle::Result::Stop;
}
angle::Result Buffer9::markTransformFeedbackUsage(const gl::Context *context)
{
ANGLE_HR_UNREACHABLE(GetImplAs<Context9>(context));
return angle::Result::Stop;
}
} // namespace rx
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