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/*
* Copyright (C) 2010, 2011, 2012 Research In Motion Limited. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "CanvasLayerWebKitThread.h"
#if USE(ACCELERATED_COMPOSITING) && ENABLE(ACCELERATED_2D_CANVAS)
#include "SharedGraphicsContext3D.h"
#include <GLES2/gl2.h>
#include <SkGpuDevice.h>
namespace WebCore {
CanvasLayerWebKitThread::CanvasLayerWebKitThread(SkGpuDevice* device)
: EGLImageLayerWebKitThread(CanvasLayer)
{
setDevice(device);
}
CanvasLayerWebKitThread::~CanvasLayerWebKitThread()
{
if (SharedGraphicsContext3D::get()->makeContextCurrent())
deleteFrontBuffer();
}
void CanvasLayerWebKitThread::setDevice(SkGpuDevice* device)
{
m_device = device;
setNeedsDisplay();
}
void CanvasLayerWebKitThread::updateTextureContentsIfNeeded()
{
if (!m_device)
return;
if (!SharedGraphicsContext3D::get()->makeContextCurrent())
return;
GrRenderTarget* renderTarget = reinterpret_cast<GrRenderTarget*>(m_device->accessRenderTarget());
if (!renderTarget)
return;
GrTexture* texture = renderTarget->asTexture();
if (!texture)
return;
updateFrontBuffer(IntSize(m_device->width(), m_device->height()), texture->getTextureHandle());
}
void CanvasLayerWebKitThread::deleteTextures()
{
if (SharedGraphicsContext3D::get()->makeContextCurrent())
deleteFrontBuffer();
}
}
#endif // USE(ACCELERATED_COMPOSITING) && ENABLE(ACCELERATED_2D_CANVAS)
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