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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CC_PRIORITIZED_TEXTURE_MANAGER_H_ | 5 #ifndef CC_PRIORITIZED_RESOURCE_MANAGER_H_ |
6 #define CC_PRIORITIZED_TEXTURE_MANAGER_H_ | 6 #define CC_PRIORITIZED_RESOURCE_MANAGER_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 #include "base/hash_tables.h" | 12 #include "base/hash_tables.h" |
13 #include "base/memory/scoped_ptr.h" | 13 #include "base/memory/scoped_ptr.h" |
14 #include "cc/cc_export.h" | 14 #include "cc/cc_export.h" |
15 #include "cc/prioritized_texture.h" | 15 #include "cc/prioritized_resource.h" |
16 #include "cc/priority_calculator.h" | 16 #include "cc/priority_calculator.h" |
17 #include "cc/texture.h" | 17 #include "cc/texture.h" |
18 #include "third_party/khronos/GLES2/gl2.h" | 18 #include "third_party/khronos/GLES2/gl2.h" |
19 #include "ui/gfx/size.h" | 19 #include "ui/gfx/size.h" |
20 | 20 |
21 #if defined(COMPILER_GCC) | 21 #if defined(COMPILER_GCC) |
22 namespace BASE_HASH_NAMESPACE { | 22 namespace BASE_HASH_NAMESPACE { |
23 template<> | 23 template<> |
24 struct hash<cc::PrioritizedTexture*> { | 24 struct hash<cc::PrioritizedResource*> { |
25 size_t operator()(cc::PrioritizedTexture* ptr) const { | 25 size_t operator()(cc::PrioritizedResource* ptr) const { |
26 return hash<size_t>()(reinterpret_cast<size_t>(ptr)); | 26 return hash<size_t>()(reinterpret_cast<size_t>(ptr)); |
27 } | 27 } |
28 }; | 28 }; |
29 } // namespace BASE_HASH_NAMESPACE | 29 } // namespace BASE_HASH_NAMESPACE |
30 #endif // COMPILER | 30 #endif // COMPILER |
31 | 31 |
32 namespace cc { | 32 namespace cc { |
33 | 33 |
34 class PriorityCalculator; | 34 class PriorityCalculator; |
35 | 35 |
36 class CC_EXPORT PrioritizedTextureManager { | 36 class CC_EXPORT PrioritizedResourceManager { |
37 public: | 37 public: |
38 static scoped_ptr<PrioritizedTextureManager> create(size_t maxMemoryLimitByt
es, int maxTextureSize, int pool) | 38 static scoped_ptr<PrioritizedResourceManager> create(size_t maxMemoryLimitBy
tes, int maxTextureSize, int pool) |
39 { | 39 { |
40 return make_scoped_ptr(new PrioritizedTextureManager(maxMemoryLimitBytes
, maxTextureSize, pool)); | 40 return make_scoped_ptr(new PrioritizedResourceManager(maxMemoryLimitByte
s, maxTextureSize, pool)); |
41 } | 41 } |
42 scoped_ptr<PrioritizedTexture> createTexture(gfx::Size size, GLenum format) | 42 scoped_ptr<PrioritizedResource> createTexture(gfx::Size size, GLenum format) |
43 { | 43 { |
44 return make_scoped_ptr(new PrioritizedTexture(this, size, format)); | 44 return make_scoped_ptr(new PrioritizedResource(this, size, format)); |
45 } | 45 } |
46 ~PrioritizedTextureManager(); | 46 ~PrioritizedResourceManager(); |
47 | 47 |
48 typedef std::list<PrioritizedTexture::Backing*> BackingList; | 48 typedef std::list<PrioritizedResource::Backing*> BackingList; |
49 | 49 |
50 // FIXME (http://crbug.com/137094): This 64MB default is a straggler from th
e | 50 // FIXME (http://crbug.com/137094): This 64MB default is a straggler from th
e |
51 // old texture manager and is just to give us a default memory allocation be
fore | 51 // old texture manager and is just to give us a default memory allocation be
fore |
52 // we get a callback from the GPU memory manager. We should probaby either: | 52 // we get a callback from the GPU memory manager. We should probaby either: |
53 // - wait for the callback before rendering anything instead | 53 // - wait for the callback before rendering anything instead |
54 // - push this into the GPU memory manager somehow. | 54 // - push this into the GPU memory manager somehow. |
55 static size_t defaultMemoryAllocationLimit() { return 64 * 1024 * 1024; } | 55 static size_t defaultMemoryAllocationLimit() { return 64 * 1024 * 1024; } |
56 | 56 |
57 // memoryUseBytes() describes the number of bytes used by existing allocated
textures. | 57 // memoryUseBytes() describes the number of bytes used by existing allocated
textures. |
58 // memoryAboveCutoffBytes() describes the number of bytes that would be used
if all | 58 // memoryAboveCutoffBytes() describes the number of bytes that would be used
if all |
(...skipping 25 matching lines...) Expand all Loading... |
84 // resources evicted. Only when we commit a tree that has no textures linked
to evicted backings | 84 // resources evicted. Only when we commit a tree that has no textures linked
to evicted backings |
85 // may we allow drawing. | 85 // may we allow drawing. |
86 bool linkedEvictedBackingsExist() const; | 86 bool linkedEvictedBackingsExist() const; |
87 // Retrieve the list of all contents textures' backings that have been evict
ed, to pass to the | 87 // Retrieve the list of all contents textures' backings that have been evict
ed, to pass to the |
88 // main thread to unlink them from their owning textures. | 88 // main thread to unlink them from their owning textures. |
89 void getEvictedBackings(BackingList& evictedBackings); | 89 void getEvictedBackings(BackingList& evictedBackings); |
90 // Unlink the list of contents textures' backings from their owning textures
on the main thread | 90 // Unlink the list of contents textures' backings from their owning textures
on the main thread |
91 // before updating layers. | 91 // before updating layers. |
92 void unlinkEvictedBackings(const BackingList& evictedBackings); | 92 void unlinkEvictedBackings(const BackingList& evictedBackings); |
93 | 93 |
94 bool requestLate(PrioritizedTexture*); | 94 bool requestLate(PrioritizedResource*); |
95 | 95 |
96 void reduceMemory(ResourceProvider*); | 96 void reduceMemory(ResourceProvider*); |
97 void clearAllMemory(ResourceProvider*); | 97 void clearAllMemory(ResourceProvider*); |
98 | 98 |
99 void acquireBackingTextureIfNeeded(PrioritizedTexture*, ResourceProvider*); | 99 void acquireBackingTextureIfNeeded(PrioritizedResource*, ResourceProvider*); |
100 | 100 |
101 void registerTexture(PrioritizedTexture*); | 101 void registerTexture(PrioritizedResource*); |
102 void unregisterTexture(PrioritizedTexture*); | 102 void unregisterTexture(PrioritizedResource*); |
103 void returnBackingTexture(PrioritizedTexture*); | 103 void returnBackingTexture(PrioritizedResource*); |
104 | 104 |
105 // Update all backings' priorities from their owning texture. | 105 // Update all backings' priorities from their owning texture. |
106 void pushTexturePrioritiesToBackings(); | 106 void pushTexturePrioritiesToBackings(); |
107 | 107 |
108 // Mark all textures' backings as being in the drawing impl tree. | 108 // Mark all textures' backings as being in the drawing impl tree. |
109 void updateBackingsInDrawingImplTree(); | 109 void updateBackingsInDrawingImplTree(); |
110 | 110 |
111 private: | 111 private: |
112 friend class PrioritizedTextureTest; | 112 friend class PrioritizedResourceTest; |
113 | 113 |
114 enum EvictionPolicy { | 114 enum EvictionPolicy { |
115 EvictOnlyRecyclable, | 115 EvictOnlyRecyclable, |
116 EvictAnything, | 116 EvictAnything, |
117 }; | 117 }; |
118 | 118 |
119 // Compare textures. Highest priority first. | 119 // Compare textures. Highest priority first. |
120 static inline bool compareTextures(PrioritizedTexture* a, PrioritizedTexture
* b) | 120 static inline bool compareTextures(PrioritizedResource* a, PrioritizedResour
ce* b) |
121 { | 121 { |
122 if (a->requestPriority() == b->requestPriority()) | 122 if (a->requestPriority() == b->requestPriority()) |
123 return a < b; | 123 return a < b; |
124 return PriorityCalculator::priorityIsHigher(a->requestPriority(), b->req
uestPriority()); | 124 return PriorityCalculator::priorityIsHigher(a->requestPriority(), b->req
uestPriority()); |
125 } | 125 } |
126 // Compare backings. Lowest priority first. | 126 // Compare backings. Lowest priority first. |
127 static inline bool compareBackings(PrioritizedTexture::Backing* a, Prioritiz
edTexture::Backing* b) | 127 static inline bool compareBackings(PrioritizedResource::Backing* a, Prioriti
zedResource::Backing* b) |
128 { | 128 { |
129 // Make textures that can be recycled appear first | 129 // Make textures that can be recycled appear first |
130 if (a->canBeRecycled() != b->canBeRecycled()) | 130 if (a->canBeRecycled() != b->canBeRecycled()) |
131 return (a->canBeRecycled() > b->canBeRecycled()); | 131 return (a->canBeRecycled() > b->canBeRecycled()); |
132 // Then sort by being above or below the priority cutoff. | 132 // Then sort by being above or below the priority cutoff. |
133 if (a->wasAbovePriorityCutoffAtLastPriorityUpdate() != b->wasAbovePriori
tyCutoffAtLastPriorityUpdate()) | 133 if (a->wasAbovePriorityCutoffAtLastPriorityUpdate() != b->wasAbovePriori
tyCutoffAtLastPriorityUpdate()) |
134 return (a->wasAbovePriorityCutoffAtLastPriorityUpdate() < b->wasAbov
ePriorityCutoffAtLastPriorityUpdate()); | 134 return (a->wasAbovePriorityCutoffAtLastPriorityUpdate() < b->wasAbov
ePriorityCutoffAtLastPriorityUpdate()); |
135 // Then sort by priority (note that backings that no longer have owners
will | 135 // Then sort by priority (note that backings that no longer have owners
will |
136 // always have the lowest priority) | 136 // always have the lowest priority) |
137 if (a->requestPriorityAtLastPriorityUpdate() != b->requestPriorityAtLast
PriorityUpdate()) | 137 if (a->requestPriorityAtLastPriorityUpdate() != b->requestPriorityAtLast
PriorityUpdate()) |
138 return PriorityCalculator::priorityIsLower(a->requestPriorityAtLastP
riorityUpdate(), b->requestPriorityAtLastPriorityUpdate()); | 138 return PriorityCalculator::priorityIsLower(a->requestPriorityAtLastP
riorityUpdate(), b->requestPriorityAtLastPriorityUpdate()); |
139 // Finally sort by being in the impl tree versus being completely unrefe
renced | 139 // Finally sort by being in the impl tree versus being completely unrefe
renced |
140 if (a->inDrawingImplTree() != b->inDrawingImplTree()) | 140 if (a->inDrawingImplTree() != b->inDrawingImplTree()) |
141 return (a->inDrawingImplTree() < b->inDrawingImplTree()); | 141 return (a->inDrawingImplTree() < b->inDrawingImplTree()); |
142 return a < b; | 142 return a < b; |
143 } | 143 } |
144 | 144 |
145 PrioritizedTextureManager(size_t maxMemoryLimitBytes, int maxTextureSize, in
t pool); | 145 PrioritizedResourceManager(size_t maxMemoryLimitBytes, int maxTextureSize, i
nt pool); |
146 | 146 |
147 bool evictBackingsToReduceMemory(size_t limitBytes, int priorityCutoff, Evic
tionPolicy, ResourceProvider*); | 147 bool evictBackingsToReduceMemory(size_t limitBytes, int priorityCutoff, Evic
tionPolicy, ResourceProvider*); |
148 PrioritizedTexture::Backing* createBacking(gfx::Size, GLenum format, Resourc
eProvider*); | 148 PrioritizedResource::Backing* createBacking(gfx::Size, GLenum format, Resour
ceProvider*); |
149 void evictFirstBackingResource(ResourceProvider*); | 149 void evictFirstBackingResource(ResourceProvider*); |
150 void deleteUnlinkedEvictedBackings(); | 150 void deleteUnlinkedEvictedBackings(); |
151 void sortBackings(); | 151 void sortBackings(); |
152 | 152 |
153 void assertInvariants(); | 153 void assertInvariants(); |
154 | 154 |
155 size_t m_maxMemoryLimitBytes; | 155 size_t m_maxMemoryLimitBytes; |
156 // The priority cutoff based on memory pressure. This is not a strict | 156 // The priority cutoff based on memory pressure. This is not a strict |
157 // cutoff -- requestLate allows textures with priority equal to this | 157 // cutoff -- requestLate allows textures with priority equal to this |
158 // cutoff to be allowed. | 158 // cutoff to be allowed. |
159 int m_priorityCutoff; | 159 int m_priorityCutoff; |
160 // The priority cutoff based on external memory policy. This is a strict | 160 // The priority cutoff based on external memory policy. This is a strict |
161 // cutoff -- no textures with priority equal to this cutoff will be allowed. | 161 // cutoff -- no textures with priority equal to this cutoff will be allowed. |
162 int m_externalPriorityCutoff; | 162 int m_externalPriorityCutoff; |
163 size_t m_memoryUseBytes; | 163 size_t m_memoryUseBytes; |
164 size_t m_memoryAboveCutoffBytes; | 164 size_t m_memoryAboveCutoffBytes; |
165 size_t m_memoryAvailableBytes; | 165 size_t m_memoryAvailableBytes; |
166 int m_pool; | 166 int m_pool; |
167 | 167 |
168 typedef base::hash_set<PrioritizedTexture*> TextureSet; | 168 typedef base::hash_set<PrioritizedResource*> TextureSet; |
169 typedef std::vector<PrioritizedTexture*> TextureVector; | 169 typedef std::vector<PrioritizedResource*> TextureVector; |
170 | 170 |
171 TextureSet m_textures; | 171 TextureSet m_textures; |
172 // This list is always sorted in eviction order, with the exception the | 172 // This list is always sorted in eviction order, with the exception the |
173 // newly-allocated or recycled textures at the very end of the tail that | 173 // newly-allocated or recycled textures at the very end of the tail that |
174 // are not sorted by priority. | 174 // are not sorted by priority. |
175 BackingList m_backings; | 175 BackingList m_backings; |
176 bool m_backingsTailNotSorted; | 176 bool m_backingsTailNotSorted; |
177 BackingList m_evictedBackings; | 177 BackingList m_evictedBackings; |
178 | 178 |
179 TextureVector m_tempTextureVector; | 179 TextureVector m_tempTextureVector; |
180 | 180 |
181 // Statistics about memory usage at priority cutoffs, computed at prioritize
Textures. | 181 // Statistics about memory usage at priority cutoffs, computed at prioritize
Textures. |
182 size_t m_memoryVisibleBytes; | 182 size_t m_memoryVisibleBytes; |
183 size_t m_memoryVisibleAndNearbyBytes; | 183 size_t m_memoryVisibleAndNearbyBytes; |
184 | 184 |
185 // Statistics copied at the time of pushTexturePrioritiesToBackings. | 185 // Statistics copied at the time of pushTexturePrioritiesToBackings. |
186 size_t m_memoryVisibleLastPushedBytes; | 186 size_t m_memoryVisibleLastPushedBytes; |
187 size_t m_memoryVisibleAndNearbyLastPushedBytes; | 187 size_t m_memoryVisibleAndNearbyLastPushedBytes; |
188 | 188 |
189 DISALLOW_COPY_AND_ASSIGN(PrioritizedTextureManager); | 189 DISALLOW_COPY_AND_ASSIGN(PrioritizedResourceManager); |
190 }; | 190 }; |
191 | 191 |
192 } // namespace cc | 192 } // namespace cc |
193 | 193 |
194 #endif // CC_PRIORITIZED_TEXTURE_MANAGER_H_ | 194 #endif // CC_PRIORITIZED_RESOURCE_MANAGER_H_ |
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