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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "android_webview/browser/gpu_memory_buffer_impl.h"
#include "android_webview/browser/gpu_memory_buffer_factory_impl.h"
#include "android_webview/public/browser/draw_gl.h"
#include "base/bind.h"
#include "base/logging.h"
#include "gpu/command_buffer/client/gpu_memory_buffer.h"
#include "gpu/command_buffer/client/gpu_memory_buffer_factory.h"
#include "ui/gfx/size.h"
namespace android_webview {
// Provides hardware rendering functions from the Android glue layer.
AwDrawGLFunctionTable* g_gl_draw_functions = NULL;
GpuMemoryBufferImpl::GpuMemoryBufferImpl(gfx::Size size)
: buffer_id_(g_gl_draw_functions->create_graphic_buffer(
size.width(), size.height())),
size_(size),
mapped_(false) {
}
GpuMemoryBufferImpl::~GpuMemoryBufferImpl() {
DCHECK(buffer_id_ != 0);
g_gl_draw_functions->release_graphic_buffer(buffer_id_);
buffer_id_ = 0;
}
void GpuMemoryBufferImpl::Map(gpu::GpuMemoryBuffer::AccessMode mode,
void** vaddr) {
DCHECK(buffer_id_ != 0);
DCHECK(!mapped_);
int err = g_gl_draw_functions->lock(buffer_id_, mode, vaddr);
DCHECK(err == 0);
mapped_ = true;
}
void GpuMemoryBufferImpl::Unmap() {
DCHECK(buffer_id_ != 0);
DCHECK(mapped_);
int err = g_gl_draw_functions->unlock(buffer_id_);
DCHECK(err == 0);
mapped_ = false;
}
void* GpuMemoryBufferImpl::GetNativeBuffer() {
DCHECK(buffer_id_ != 0);
return g_gl_draw_functions->get_native_buffer(buffer_id_);
}
uint32 GpuMemoryBufferImpl::GetStride() {
DCHECK(buffer_id_ != 0);
return g_gl_draw_functions->get_stride(buffer_id_);
}
// static
void GpuMemoryBufferImpl::SetAwDrawGLFunctionTable(
AwDrawGLFunctionTable* table) {
g_gl_draw_functions = table;
gpu::SetProcessDefaultGpuMemoryBufferFactory(
base::Bind(&CreateGpuMemoryBuffer));
}
} // namespace android_webview
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