1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
// 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.
#ifndef CC_LAYERS_PICTURE_LAYER_IMPL_H_
#define CC_LAYERS_PICTURE_LAYER_IMPL_H_
#include <stddef.h>
#include <map>
#include <string>
#include <vector>
#include "base/macros.h"
#include "cc/base/cc_export.h"
#include "cc/layers/layer_impl.h"
#include "cc/tiles/picture_layer_tiling.h"
#include "cc/tiles/picture_layer_tiling_set.h"
#include "cc/tiles/tiling_set_eviction_queue.h"
#include "skia/ext/refptr.h"
#include "third_party/skia/include/core/SkPicture.h"
namespace cc {
struct AppendQuadsData;
class MicroBenchmarkImpl;
class Tile;
class CC_EXPORT PictureLayerImpl
: public LayerImpl,
NON_EXPORTED_BASE(public PictureLayerTilingClient) {
public:
static scoped_ptr<PictureLayerImpl> Create(
LayerTreeImpl* tree_impl,
int id,
bool is_mask,
scoped_refptr<SyncedScrollOffset> scroll_offset) {
return make_scoped_ptr(
new PictureLayerImpl(tree_impl, id, is_mask, scroll_offset));
}
~PictureLayerImpl() override;
bool is_mask() const { return is_mask_; }
// LayerImpl overrides.
const char* LayerTypeAsString() const override;
scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
void PushPropertiesTo(LayerImpl* layer) override;
void AppendQuads(RenderPass* render_pass,
AppendQuadsData* append_quads_data) override;
void NotifyTileStateChanged(const Tile* tile) override;
void DidBeginTracing() override;
void ReleaseResources() override;
void RecreateResources() override;
skia::RefPtr<SkPicture> GetPicture() override;
Region GetInvalidationRegionForDebugging() override;
// PictureLayerTilingClient overrides.
ScopedTilePtr CreateTile(const Tile::CreateInfo& info) override;
gfx::Size CalculateTileSize(const gfx::Size& content_bounds) const override;
const Region* GetPendingInvalidation() override;
const PictureLayerTiling* GetPendingOrActiveTwinTiling(
const PictureLayerTiling* tiling) const override;
bool HasValidTilePriorities() const override;
bool RequiresHighResToDraw() const override;
gfx::Rect GetEnclosingRectInTargetSpace() const override;
void set_gpu_raster_max_texture_size(gfx::Size gpu_raster_max_texture_size) {
gpu_raster_max_texture_size_ = gpu_raster_max_texture_size;
}
void UpdateRasterSource(scoped_refptr<DisplayListRasterSource> raster_source,
Region* new_invalidation,
const PictureLayerTilingSet* pending_set);
bool UpdateTiles();
void UpdateCanUseLCDTextAfterCommit();
bool RasterSourceUsesLCDText() const;
WhichTree GetTree() const;
// Mask-related functions.
void GetContentsResourceId(ResourceId* resource_id,
gfx::Size* resource_size) const override;
void SetNearestNeighbor(bool nearest_neighbor);
size_t GPUMemoryUsageInBytes() const override;
void RunMicroBenchmark(MicroBenchmarkImpl* benchmark) override;
bool CanHaveTilings() const;
PictureLayerTilingSet* picture_layer_tiling_set() { return tilings_.get(); }
// Functions used by tile manager.
PictureLayerImpl* GetPendingOrActiveTwinLayer() const;
bool IsOnActiveOrPendingTree() const;
// Used for benchmarking
DisplayListRasterSource* GetRasterSource() const {
return raster_source_.get();
}
protected:
friend class LayerRasterTileIterator;
using TileRequirementCheck = bool (PictureLayerTiling::*)(const Tile*) const;
PictureLayerImpl(LayerTreeImpl* tree_impl,
int id,
bool is_mask,
scoped_refptr<SyncedScrollOffset> scroll_offset);
PictureLayerTiling* AddTiling(float contents_scale);
void RemoveAllTilings();
void AddTilingsForRasterScale();
void AddLowResolutionTilingIfNeeded();
virtual bool ShouldAdjustRasterScale() const;
virtual void RecalculateRasterScales();
void CleanUpTilingsOnActiveLayer(
const std::vector<PictureLayerTiling*>& used_tilings);
float MinimumContentsScale() const;
float MaximumContentsScale() const;
void ResetRasterScale();
void UpdateViewportRectForTilePriorityInContentSpace();
PictureLayerImpl* GetRecycledTwinLayer() const;
void SanityCheckTilingState() const;
bool ShouldAdjustRasterScaleDuringScaleAnimations() const;
void GetDebugBorderProperties(SkColor* color, float* width) const override;
void GetAllPrioritizedTilesForTracing(
std::vector<PrioritizedTile>* prioritized_tiles) const override;
void AsValueInto(base::trace_event::TracedValue* dict) const override;
virtual void UpdateIdealScales();
float MaximumTilingContentsScale() const;
scoped_ptr<PictureLayerTilingSet> CreatePictureLayerTilingSet();
PictureLayerImpl* twin_layer_;
scoped_ptr<PictureLayerTilingSet> tilings_;
scoped_refptr<DisplayListRasterSource> raster_source_;
Region invalidation_;
float ideal_page_scale_;
float ideal_device_scale_;
float ideal_source_scale_;
float ideal_contents_scale_;
float raster_page_scale_;
float raster_device_scale_;
float raster_source_scale_;
float raster_contents_scale_;
float low_res_raster_contents_scale_;
bool was_screen_space_transform_animating_;
bool only_used_low_res_last_append_quads_;
const bool is_mask_;
bool nearest_neighbor_;
// Use this instead of |visible_layer_rect()| for tiling calculations. This
// takes external viewport and transform for tile priority into account.
gfx::Rect viewport_rect_for_tile_priority_in_content_space_;
gfx::Size gpu_raster_max_texture_size_;
// List of tilings that were used last time we appended quads. This can be
// used as an optimization not to remove tilings if they are still being
// drawn. Note that accessing this vector should only be done in the context
// of comparing pointers, since objects pointed to are not guaranteed to
// exist.
std::vector<PictureLayerTiling*> last_append_quads_tilings_;
DISALLOW_COPY_AND_ASSIGN(PictureLayerImpl);
};
} // namespace cc
#endif // CC_LAYERS_PICTURE_LAYER_IMPL_H_
|
