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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "cc/layers/picture_image_layer_impl.h" | |
6 | |
7 #include <algorithm> | |
8 | |
9 #include "cc/debug/debug_colors.h" | |
10 #include "cc/trees/layer_tree_impl.h" | |
11 | |
12 namespace cc { | |
13 | |
14 PictureImageLayerImpl::PictureImageLayerImpl(LayerTreeImpl* tree_impl, | |
15 int id, | |
16 bool is_mask) | |
17 : PictureLayerImpl(tree_impl, id, is_mask) {} | |
18 | |
19 PictureImageLayerImpl::~PictureImageLayerImpl() { | |
20 } | |
21 | |
22 const char* PictureImageLayerImpl::LayerTypeAsString() const { | |
23 return "cc::PictureImageLayerImpl"; | |
24 } | |
25 | |
26 std::unique_ptr<LayerImpl> PictureImageLayerImpl::CreateLayerImpl( | |
27 LayerTreeImpl* tree_impl) { | |
28 return PictureImageLayerImpl::Create(tree_impl, id(), is_mask_); | |
29 } | |
30 | |
31 void PictureImageLayerImpl::GetDebugBorderProperties( | |
32 SkColor* color, float* width) const { | |
33 *color = DebugColors::ImageLayerBorderColor(); | |
34 *width = DebugColors::ImageLayerBorderWidth(layer_tree_impl()); | |
35 } | |
36 | |
37 bool PictureImageLayerImpl::ShouldAdjustRasterScale() const { | |
38 return false; | |
39 } | |
40 | |
41 void PictureImageLayerImpl::RecalculateRasterScales() { | |
42 // Don't scale images during rastering to ensure image quality, save memory | |
43 // and avoid frequent re-rastering on change of scale. | |
44 raster_page_scale_ = 1.f; | |
45 raster_device_scale_ = 1.f; | |
46 raster_source_scale_ = std::max(1.f, MinimumContentsScale()); | |
47 raster_contents_scale_ = raster_source_scale_; | |
48 // We don't need low res tiles. | |
49 low_res_raster_contents_scale_ = raster_contents_scale_; | |
50 } | |
51 | |
52 void PictureImageLayerImpl::UpdateIdealScales() { | |
53 ideal_contents_scale_ = 1.f; | |
54 ideal_page_scale_ = 1.f; | |
55 ideal_device_scale_ = 1.f; | |
56 ideal_source_scale_ = 1.f; | |
57 } | |
58 | |
59 } // namespace cc | |
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