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// Copyright 2012 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 "config.h"
#if USE(ACCELERATED_COMPOSITING)
#include "CCSolidColorLayerImpl.h"
#include "CCQuadSink.h"
#include "CCSolidColorDrawQuad.h"
#include <wtf/MathExtras.h>
using namespace std;
using WebKit::WebTransformationMatrix;
namespace cc {
CCSolidColorLayerImpl::CCSolidColorLayerImpl(int id)
: CCLayerImpl(id)
, m_tileSize(256)
{
}
CCSolidColorLayerImpl::~CCSolidColorLayerImpl()
{
}
void CCSolidColorLayerImpl::appendQuads(CCQuadSink& quadSink, CCAppendQuadsData& appendQuadsData)
{
CCSharedQuadState* sharedQuadState = quadSink.useSharedQuadState(createSharedQuadState());
appendDebugBorderQuad(quadSink, sharedQuadState, appendQuadsData);
// We create a series of smaller quads instead of just one large one so that the
// culler can reduce the total pixels drawn.
int width = contentBounds().width();
int height = contentBounds().height();
for (int x = 0; x < width; x += m_tileSize) {
for (int y = 0; y < height; y += m_tileSize) {
IntRect solidTileRect(x, y, min(width - x, m_tileSize), min(height - y, m_tileSize));
quadSink.append(CCSolidColorDrawQuad::create(sharedQuadState, solidTileRect, backgroundColor()).PassAs<CCDrawQuad>(), appendQuadsData);
}
}
}
const char* CCSolidColorLayerImpl::layerTypeAsString() const
{
return "SolidColorLayer";
}
} // namespace cc
#endif // USE(ACCELERATED_COMPOSITING)
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