| // 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() {} |
| |
| HeadsUpDisplayLayer::~HeadsUpDisplayLayer() {} |
| |
| void HeadsUpDisplayLayer::PrepareForCalculateDrawProperties( |
| gfx::Size device_viewport, float device_scale_factor) { |
| gfx::Size device_viewport_in_layout_pixels = gfx::Size( |
| device_viewport.width() / device_scale_factor, |
| device_viewport.height() / device_scale_factor); |
| |
| gfx::Size bounds; |
| gfx::Transform matrix; |
| matrix.MakeIdentity(); |
| |
| if (layer_tree_host()->debug_state().ShowHudRects()) { |
| int max_texture_size = |
| layer_tree_host()->GetRendererCapabilities().max_texture_size; |
| bounds.SetSize(std::min(max_texture_size, |
| device_viewport_in_layout_pixels.width()), |
| std::min(max_texture_size, |
| device_viewport_in_layout_pixels.height())); |
| } else { |
| int size = 256; |
| bounds.SetSize(size, size); |
| matrix.Translate(device_viewport_in_layout_pixels.width() - size, 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 |