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/*
* Copyright (C) 2011, 2012 Sony Ericsson Mobile Communications AB
* Copyright (C) 2012 Sony Mobile Communications AB
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#if ENABLE(WEBGL) && USE(ACCELERATED_COMPOSITING)
#include "WebGLLayer.h"
#include "GraphicsContext3DInternal.h"
#include "DrawQuadData.h"
#include "SkRect.h"
#include "TilesManager.h"
#include "TransformationMatrix.h"
namespace WebCore {
WebGLLayer::WebGLLayer(PassRefPtr<GraphicsContext3DProxy> proxy)
: LayerAndroid((RenderLayer*)0)
, m_proxy(proxy)
{
}
WebGLLayer::WebGLLayer(const WebGLLayer& layer)
: LayerAndroid(layer)
, m_proxy(layer.m_proxy)
{
}
WebGLLayer::~WebGLLayer()
{
}
bool WebGLLayer::drawGL(bool layerTilesDisabled)
{
bool askScreenUpdate = false;
askScreenUpdate |= LayerAndroid::drawGL(layerTilesDisabled);
if (m_proxy.get()) {
GLuint texture;
SkRect localBounds;
bool locked = m_proxy->lockFrontBuffer(texture, localBounds);
if (locked) {
// Flip the y-coordinate
TransformationMatrix transform = m_drawTransform;
transform = transform.translate(0, 2 * localBounds.top() + localBounds.height());
transform = transform.scale3d(1.0, -1.0, 1.0);
TextureQuadData data(texture, GL_TEXTURE_EXTERNAL_OES, GL_LINEAR, LayerQuad, &transform, &localBounds);
TilesManager::instance()->shader()->drawQuad(&data);
m_proxy->releaseFrontBuffer();
}
}
return askScreenUpdate;
}
} // namespace WebCore
#endif // ENABLE(WEBGL) && USE(ACCELERATED_COMPOSITING)
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