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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_ | 5 #ifndef CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_ |
| 6 #define CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_ | 6 #define CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_ |
| 7 | 7 |
| 8 #include <stdint.h> | 8 #include <stdint.h> |
| 9 | 9 |
| 10 #include <memory> | 10 #include <memory> |
| 11 #include <unordered_map> | 11 #include <unordered_map> |
| 12 #include <unordered_set> | 12 #include <unordered_set> |
| 13 | 13 |
| 14 #include "base/atomic_sequence_num.h" | 14 #include "base/atomic_sequence_num.h" |
| 15 #include "base/containers/mru_cache.h" | 15 #include "base/containers/mru_cache.h" |
| 16 #include "base/hash.h" | 16 #include "base/hash.h" |
| 17 #include "base/memory/discardable_memory_allocator.h" | 17 #include "base/memory/discardable_memory_allocator.h" |
| 18 #include "base/memory/ref_counted.h" | 18 #include "base/memory/ref_counted.h" |
| 19 #include "base/numerics/safe_math.h" | 19 #include "base/numerics/safe_math.h" |
| 20 #include "base/threading/thread_checker.h" | 20 #include "base/threading/thread_checker.h" |
| 21 #include "base/trace_event/memory_dump_provider.h" | 21 #include "base/trace_event/memory_dump_provider.h" |
| 22 #include "cc/base/cc_export.h" | 22 #include "cc/base/cc_export.h" |
| 23 #include "cc/playback/decoded_draw_image.h" | 23 #include "cc/playback/decoded_draw_image.h" |
| 24 #include "cc/playback/draw_image.h" | 24 #include "cc/playback/draw_image.h" |
| 25 #include "cc/raster/tile_task_runner.h" | 25 #include "cc/raster/tile_task_runner.h" |
| 26 #include "cc/tiles/image_decode_controller.h" | 26 #include "cc/tiles/image_decode_controller.h" |
| 27 #include "skia/ext/refptr.h" | 27 #include "third_party/skia/include/core/SkRefCnt.h" |
| 28 | 28 |
| 29 namespace cc { | 29 namespace cc { |
| 30 | 30 |
| 31 // ImageDecodeControllerKey is a class that gets a cache key out of a given draw | 31 // ImageDecodeControllerKey is a class that gets a cache key out of a given draw |
| 32 // image. That is, this key uniquely identifies an image in the cache. Note that | 32 // image. That is, this key uniquely identifies an image in the cache. Note that |
| 33 // it's insufficient to use SkImage's unique id, since the same image can appear | 33 // it's insufficient to use SkImage's unique id, since the same image can appear |
| 34 // in the cache multiple times at different scales and filter qualities. | 34 // in the cache multiple times at different scales and filter qualities. |
| 35 class CC_EXPORT ImageDecodeControllerKey { | 35 class CC_EXPORT ImageDecodeControllerKey { |
| 36 public: | 36 public: |
| 37 static ImageDecodeControllerKey FromDrawImage(const DrawImage& image); | 37 static ImageDecodeControllerKey FromDrawImage(const DrawImage& image); |
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| 155 const base::DiscardableMemory* memory() const { return memory_.get(); } | 155 const base::DiscardableMemory* memory() const { return memory_.get(); } |
| 156 | 156 |
| 157 // An ID which uniquely identifies this DecodedImage within the image decode | 157 // An ID which uniquely identifies this DecodedImage within the image decode |
| 158 // controller. Used in memory tracing. | 158 // controller. Used in memory tracing. |
| 159 uint64_t tracing_id() const { return tracing_id_; } | 159 uint64_t tracing_id() const { return tracing_id_; } |
| 160 | 160 |
| 161 private: | 161 private: |
| 162 bool locked_; | 162 bool locked_; |
| 163 SkImageInfo image_info_; | 163 SkImageInfo image_info_; |
| 164 std::unique_ptr<base::DiscardableMemory> memory_; | 164 std::unique_ptr<base::DiscardableMemory> memory_; |
| 165 skia::RefPtr<SkImage> image_; | 165 sk_sp<SkImage> image_; |
| 166 SkSize src_rect_offset_; | 166 SkSize src_rect_offset_; |
| 167 uint64_t tracing_id_; | 167 uint64_t tracing_id_; |
| 168 }; | 168 }; |
| 169 | 169 |
| 170 // MemoryBudget is a convenience class for memory bookkeeping and ensuring | 170 // MemoryBudget is a convenience class for memory bookkeeping and ensuring |
| 171 // that we don't go over the limit when pre-decoding. | 171 // that we don't go over the limit when pre-decoding. |
| 172 class MemoryBudget { | 172 class MemoryBudget { |
| 173 public: | 173 public: |
| 174 explicit MemoryBudget(size_t limit_bytes); | 174 explicit MemoryBudget(size_t limit_bytes); |
| 175 | 175 |
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| 266 | 266 |
| 267 ResourceFormat format_; | 267 ResourceFormat format_; |
| 268 | 268 |
| 269 // Used to uniquely identify DecodedImages for memory traces. | 269 // Used to uniquely identify DecodedImages for memory traces. |
| 270 base::AtomicSequenceNumber next_tracing_id_; | 270 base::AtomicSequenceNumber next_tracing_id_; |
| 271 }; | 271 }; |
| 272 | 272 |
| 273 } // namespace cc | 273 } // namespace cc |
| 274 | 274 |
| 275 #endif // CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_ | 275 #endif // CC_TILES_SOFTWARE_IMAGE_DECODE_CONTROLLER_H_ |
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