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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 "cc/heads_up_display_layer.h"
#include "base/debug/trace_event.h"
#include "cc/heads_up_display_layer_impl.h"
#include "cc/layer_tree_host.h"
namespace cc {
scoped_refptr<HeadsUpDisplayLayer> HeadsUpDisplayLayer::create()
{
return make_scoped_refptr(new HeadsUpDisplayLayer());
}
HeadsUpDisplayLayer::HeadsUpDisplayLayer()
: Layer()
{
setBounds(gfx::Size(256, 256));
}
HeadsUpDisplayLayer::~HeadsUpDisplayLayer()
{
}
void HeadsUpDisplayLayer::update(ResourceUpdateQueue&, const OcclusionTracker*, RenderingStats*)
{
const LayerTreeDebugState& debugState = layerTreeHost()->debugState();
int maxTextureSize = layerTreeHost()->rendererCapabilities().maxTextureSize;
int deviceViewportInLayoutPixelsWidth = layerTreeHost()->deviceViewportSize().width() / layerTreeHost()->deviceScaleFactor();
int deviceViewportInLayoutPixelsHeight = layerTreeHost()->deviceViewportSize().height() / layerTreeHost()->deviceScaleFactor();
gfx::Size bounds;
gfx::Transform matrix;
matrix.MakeIdentity();
if (debugState.showPlatformLayerTree || debugState.showHudRects()) {
int width = std::min(maxTextureSize, deviceViewportInLayoutPixelsWidth);
int height = std::min(maxTextureSize, deviceViewportInLayoutPixelsHeight);
bounds = gfx::Size(width, height);
} else {
bounds = gfx::Size(256, 256);
matrix.Translate(deviceViewportInLayoutPixelsWidth - 256, 0);
}
setBounds(bounds);
setTransform(matrix);
}
bool HeadsUpDisplayLayer::drawsContent() const
{
return true;
}
scoped_ptr<LayerImpl> HeadsUpDisplayLayer::createLayerImpl(LayerTreeImpl* treeImpl)
{
return HeadsUpDisplayLayerImpl::create(treeImpl, m_layerId).PassAs<LayerImpl>();
}
} // namespace cc
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