| // 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()).PassAs<LayerImpl>(); |
| } |
| |
| void PictureImageLayerImpl::CalculateContentsScale( |
| float ideal_contents_scale, |
| float device_scale_factor, |
| float page_scale_factor, |
| bool animating_transform_to_screen, |
| float* contents_scale_x, |
| float* contents_scale_y, |
| gfx::Size* content_bounds) { |
| // CalculateRasterContentsScale always returns 1.f, so make that the ideal |
| // scale. |
| ideal_contents_scale = 1.f; |
| PictureLayerImpl::CalculateContentsScale(ideal_contents_scale, |
| device_scale_factor, |
| page_scale_factor, |
| animating_transform_to_screen, |
| contents_scale_x, |
| contents_scale_y, |
| content_bounds); |
| } |
| |
| void PictureImageLayerImpl::GetDebugBorderProperties( |
| SkColor* color, float* width) const { |
| *color = DebugColors::ImageLayerBorderColor(); |
| *width = DebugColors::ImageLayerBorderWidth(layer_tree_impl()); |
| } |
| |
| bool PictureImageLayerImpl::ShouldAdjustRasterScale( |
| bool animating_transform_to_screen) const { |
| return false; |
| } |
| |
| void PictureImageLayerImpl::CalculateRasterContentsScale( |
| bool animating_transform_to_screen, |
| float* raster_contents_scale, |
| float* low_res_raster_contents_scale) const { |
| // Don't scale images during rastering to ensure image quality, save memory |
| // and avoid frequent re-rastering on change of scale. |
| *raster_contents_scale = std::max(1.f, MinimumContentsScale()); |
| // We don't need low res tiles. |
| *low_res_raster_contents_scale = *raster_contents_scale; |
| } |
| |
| } // namespace cc |