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// Copyright 2013 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/picture_image_layer_impl.h"
#include <algorithm>
#include "cc/debug/debug_colors.h"
#include "cc/trees/layer_tree_impl.h"
namespace cc {
PictureImageLayerImpl::PictureImageLayerImpl(LayerTreeImpl* tree_impl, int id)
: PictureLayerImpl(tree_impl, id) {
}
PictureImageLayerImpl::~PictureImageLayerImpl() {
}
const char* PictureImageLayerImpl::LayerTypeAsString() const {
return "cc::PictureImageLayerImpl";
}
scoped_ptr<LayerImpl> PictureImageLayerImpl::CreateLayerImpl(
LayerTreeImpl* tree_impl) {
return PictureImageLayerImpl::Create(tree_impl, id());
}
void PictureImageLayerImpl::GetDebugBorderProperties(
SkColor* color, float* width) const {
*color = DebugColors::ImageLayerBorderColor();
*width = DebugColors::ImageLayerBorderWidth(layer_tree_impl());
}
bool PictureImageLayerImpl::ShouldAdjustRasterScale() const {
return false;
}
void PictureImageLayerImpl::RecalculateRasterScales() {
// Don't scale images during rastering to ensure image quality, save memory
// and avoid frequent re-rastering on change of scale.
raster_page_scale_ = 1.f;
raster_device_scale_ = 1.f;
raster_source_scale_ = std::max(1.f, MinimumContentsScale());
raster_contents_scale_ = raster_source_scale_;
// We don't need low res tiles.
low_res_raster_contents_scale_ = raster_contents_scale_;
}
void PictureImageLayerImpl::UpdateIdealScales() {
ideal_contents_scale_ = 1.f;
ideal_page_scale_ = 1.f;
ideal_device_scale_ = 1.f;
ideal_source_scale_ = 1.f;
}
} // namespace cc
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