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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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