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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/layers/heads_up_display_layer.h"
#include <algorithm>
#include "base/debug/trace_event.h"
#include "cc/layers/heads_up_display_layer_impl.h"
#include "cc/trees/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*) {
const LayerTreeDebugState& debug_state = layer_tree_host()->debug_state();
int max_texture_size =
layer_tree_host()->GetRendererCapabilities().max_texture_size;
int device_viewport_in_layout_pixels_width =
layer_tree_host()->device_viewport_size().width() /
layer_tree_host()->device_scale_factor();
int device_viewport_in_layout_pixels_height =
layer_tree_host()->device_viewport_size().height() /
layer_tree_host()->device_scale_factor();
gfx::Size bounds;
gfx::Transform matrix;
matrix.MakeIdentity();
if (debug_state.show_platform_layer_tree || debug_state.ShowHudRects()) {
int width =
std::min(max_texture_size, device_viewport_in_layout_pixels_width);
int height =
std::min(max_texture_size, device_viewport_in_layout_pixels_height);
bounds = gfx::Size(width, height);
} else {
bounds = gfx::Size(256, 256);
matrix.Translate(device_viewport_in_layout_pixels_width - 256.0, 0.0);
}
SetBounds(bounds);
SetTransform(matrix);
}
bool HeadsUpDisplayLayer::DrawsContent() const { return true; }
scoped_ptr<LayerImpl> HeadsUpDisplayLayer::CreateLayerImpl(
LayerTreeImpl* tree_impl) {
return HeadsUpDisplayLayerImpl::Create(tree_impl, layer_id_).
PassAs<LayerImpl>();
}
} // namespace cc
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