| // Copyright 2016 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. |
| |
| #include "cc/tiles/gpu_image_decode_cache.h" |
| |
| #include <inttypes.h> |
| |
| #include "base/auto_reset.h" |
| #include "base/debug/alias.h" |
| #include "base/hash.h" |
| #include "base/memory/discardable_memory_allocator.h" |
| #include "base/memory/memory_coordinator_client_registry.h" |
| #include "base/memory/ptr_util.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "base/numerics/safe_math.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "base/trace_event/memory_dump_manager.h" |
| #include "cc/base/devtools_instrumentation.h" |
| #include "cc/output/context_provider.h" |
| #include "cc/raster/tile_task.h" |
| #include "cc/resources/resource_format_utils.h" |
| #include "cc/tiles/mipmap_util.h" |
| #include "gpu/command_buffer/client/context_support.h" |
| #include "gpu/command_buffer/client/gles2_interface.h" |
| #include "gpu_image_decode_cache.h" |
| #include "skia/ext/texture_handle.h" |
| #include "third_party/skia/include/core/SkCanvas.h" |
| #include "third_party/skia/include/core/SkRefCnt.h" |
| #include "third_party/skia/include/core/SkSurface.h" |
| #include "third_party/skia/include/gpu/GrContext.h" |
| #include "ui/gfx/skia_util.h" |
| #include "ui/gl/trace_util.h" |
| |
| namespace cc { |
| namespace { |
| |
| // The number or entries to keep in the cache, depending on the memory state of |
| // the system. This limit can be breached by in-use cache items, which cannot |
| // be deleted. |
| static const int kNormalMaxItemsInCache = 2000; |
| static const int kThrottledMaxItemsInCache = 100; |
| static const int kSuspendedMaxItemsInCache = 0; |
| |
| // The factor by which to reduce the GPU memory size of the cache when in the |
| // THROTTLED memory state. |
| static const int kThrottledCacheSizeReductionFactor = 2; |
| |
| // The maximum size in bytes of GPU memory in the cache while SUSPENDED or not |
| // visible. This limit can be breached by in-use cache items, which cannot be |
| // deleted. |
| static const int kSuspendedOrInvisibleMaxGpuImageBytes = 0; |
| |
| // Returns true if an image would not be drawn and should therefore be |
| // skipped rather than decoded. |
| bool SkipImage(const DrawImage& draw_image) { |
| if (!SkIRect::Intersects(draw_image.src_rect(), draw_image.image()->bounds())) |
| return true; |
| if (std::abs(draw_image.scale().width()) < |
| std::numeric_limits<float>::epsilon() || |
| std::abs(draw_image.scale().height()) < |
| std::numeric_limits<float>::epsilon()) { |
| return true; |
| } |
| return false; |
| } |
| |
| // Returns the filter quality to use for scaling the image to upload scale. For |
| // GPU raster, medium and high filter quality are identical for downscales. |
| // Upload scaling is always a downscale, so cap our filter quality to medium. |
| SkFilterQuality CalculateUploadScaleFilterQuality(const DrawImage& draw_image) { |
| return std::min(kMedium_SkFilterQuality, draw_image.filter_quality()); |
| } |
| |
| // Calculate the mip level to upload-scale the image to before uploading. We use |
| // mip levels rather than exact scales to increase re-use of scaled images. |
| int CalculateUploadScaleMipLevel(const DrawImage& draw_image) { |
| // Images which are being clipped will have color-bleeding if scaled. |
| // TODO(ericrk): Investigate uploading clipped images to handle this case and |
| // provide further optimization. crbug.com/620899 |
| if (draw_image.src_rect() != draw_image.image()->bounds()) |
| return 0; |
| |
| gfx::Size base_size(draw_image.image()->width(), |
| draw_image.image()->height()); |
| // Ceil our scaled size so that the mip map generated is guaranteed to be |
| // larger. Take the abs of the scale, as mipmap functions don't handle |
| // (and aren't impacted by) negative image dimensions. |
| gfx::Size scaled_size = |
| gfx::ScaleToCeiledSize(base_size, std::abs(draw_image.scale().width()), |
| std::abs(draw_image.scale().height())); |
| |
| return MipMapUtil::GetLevelForSize(base_size, scaled_size); |
| } |
| |
| // Calculates the scale factor which can be used to scale an image to a given |
| // mip level. |
| SkSize CalculateScaleFactorForMipLevel(const DrawImage& draw_image, |
| int mip_level) { |
| gfx::Size base_size(draw_image.image()->width(), |
| draw_image.image()->height()); |
| return MipMapUtil::GetScaleAdjustmentForLevel(base_size, mip_level); |
| } |
| |
| // Calculates the size of a given mip level. |
| gfx::Size CalculateSizeForMipLevel(const DrawImage& draw_image, int mip_level) { |
| gfx::Size base_size(draw_image.image()->width(), |
| draw_image.image()->height()); |
| return MipMapUtil::GetSizeForLevel(base_size, mip_level); |
| } |
| |
| } // namespace |
| |
| // static |
| GpuImageDecodeCache::InUseCacheKey |
| GpuImageDecodeCache::InUseCacheKey::FromDrawImage(const DrawImage& draw_image) { |
| return InUseCacheKey(draw_image); |
| } |
| |
| // Extract the information to uniquely identify a DrawImage for the purposes of |
| // the |in_use_cache_|. |
| GpuImageDecodeCache::InUseCacheKey::InUseCacheKey(const DrawImage& draw_image) |
| : image_id(draw_image.image()->uniqueID()), |
| mip_level(CalculateUploadScaleMipLevel(draw_image)), |
| filter_quality(CalculateUploadScaleFilterQuality(draw_image)), |
| target_color_space(draw_image.target_color_space()) {} |
| |
| bool GpuImageDecodeCache::InUseCacheKey::operator==( |
| const InUseCacheKey& other) const { |
| return image_id == other.image_id && mip_level == other.mip_level && |
| filter_quality == other.filter_quality && |
| target_color_space == other.target_color_space; |
| } |
| |
| size_t GpuImageDecodeCache::InUseCacheKeyHash::operator()( |
| const InUseCacheKey& cache_key) const { |
| return base::HashInts( |
| cache_key.target_color_space.GetHash(), |
| base::HashInts( |
| cache_key.image_id, |
| base::HashInts(cache_key.mip_level, cache_key.filter_quality))); |
| } |
| |
| GpuImageDecodeCache::InUseCacheEntry::InUseCacheEntry( |
| scoped_refptr<ImageData> image_data) |
| : image_data(std::move(image_data)) {} |
| GpuImageDecodeCache::InUseCacheEntry::InUseCacheEntry(const InUseCacheEntry&) = |
| default; |
| GpuImageDecodeCache::InUseCacheEntry::InUseCacheEntry(InUseCacheEntry&&) = |
| default; |
| GpuImageDecodeCache::InUseCacheEntry::~InUseCacheEntry() = default; |
| |
| // Task which decodes an image and stores the result in discardable memory. |
| // This task does not use GPU resources and can be run on any thread. |
| class ImageDecodeTaskImpl : public TileTask { |
| public: |
| ImageDecodeTaskImpl(GpuImageDecodeCache* cache, |
| const DrawImage& draw_image, |
| const ImageDecodeCache::TracingInfo& tracing_info, |
| GpuImageDecodeCache::DecodeTaskType task_type) |
| : TileTask(true), |
| cache_(cache), |
| image_(draw_image), |
| tracing_info_(tracing_info), |
| task_type_(task_type) { |
| DCHECK(!SkipImage(draw_image)); |
| } |
| |
| // Overridden from Task: |
| void RunOnWorkerThread() override { |
| TRACE_EVENT2("cc", "ImageDecodeTaskImpl::RunOnWorkerThread", "mode", "gpu", |
| "source_prepare_tiles_id", tracing_info_.prepare_tiles_id); |
| devtools_instrumentation::ScopedImageDecodeTask image_decode_task( |
| image_.image().get(), |
| devtools_instrumentation::ScopedImageDecodeTask::GPU); |
| cache_->DecodeImage(image_); |
| } |
| |
| // Overridden from TileTask: |
| void OnTaskCompleted() override { |
| cache_->OnImageDecodeTaskCompleted(image_, task_type_); |
| } |
| |
| protected: |
| ~ImageDecodeTaskImpl() override {} |
| |
| private: |
| GpuImageDecodeCache* cache_; |
| DrawImage image_; |
| const ImageDecodeCache::TracingInfo tracing_info_; |
| const GpuImageDecodeCache::DecodeTaskType task_type_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ImageDecodeTaskImpl); |
| }; |
| |
| // Task which creates an image from decoded data. Typically this involves |
| // uploading data to the GPU, which requires this task be run on the non- |
| // concurrent thread. |
| class ImageUploadTaskImpl : public TileTask { |
| public: |
| ImageUploadTaskImpl(GpuImageDecodeCache* cache, |
| const DrawImage& draw_image, |
| scoped_refptr<TileTask> decode_dependency, |
| const ImageDecodeCache::TracingInfo& tracing_info) |
| : TileTask(false), |
| cache_(cache), |
| image_(draw_image), |
| tracing_info_(tracing_info) { |
| DCHECK(!SkipImage(draw_image)); |
| // If an image is already decoded and locked, we will not generate a |
| // decode task. |
| if (decode_dependency) |
| dependencies_.push_back(std::move(decode_dependency)); |
| } |
| |
| // Override from Task: |
| void RunOnWorkerThread() override { |
| TRACE_EVENT2("cc", "ImageUploadTaskImpl::RunOnWorkerThread", "mode", "gpu", |
| "source_prepare_tiles_id", tracing_info_.prepare_tiles_id); |
| cache_->UploadImage(image_); |
| } |
| |
| // Overridden from TileTask: |
| void OnTaskCompleted() override { |
| cache_->OnImageUploadTaskCompleted(image_); |
| } |
| |
| protected: |
| ~ImageUploadTaskImpl() override {} |
| |
| private: |
| GpuImageDecodeCache* cache_; |
| DrawImage image_; |
| const ImageDecodeCache::TracingInfo tracing_info_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ImageUploadTaskImpl); |
| }; |
| |
| GpuImageDecodeCache::DecodedImageData::DecodedImageData() = default; |
| GpuImageDecodeCache::DecodedImageData::~DecodedImageData() { |
| ResetData(); |
| } |
| |
| bool GpuImageDecodeCache::DecodedImageData::Lock() { |
| DCHECK(!is_locked_); |
| is_locked_ = data_->Lock(); |
| if (is_locked_) |
| ++usage_stats_.lock_count; |
| return is_locked_; |
| } |
| |
| void GpuImageDecodeCache::DecodedImageData::Unlock() { |
| DCHECK(is_locked_); |
| data_->Unlock(); |
| if (usage_stats_.lock_count == 1) |
| usage_stats_.first_lock_wasted = !usage_stats_.used; |
| is_locked_ = false; |
| } |
| |
| void GpuImageDecodeCache::DecodedImageData::SetLockedData( |
| std::unique_ptr<base::DiscardableMemory> data) { |
| DCHECK(!is_locked_); |
| DCHECK(data); |
| DCHECK(!data_); |
| data_ = std::move(data); |
| is_locked_ = true; |
| } |
| |
| void GpuImageDecodeCache::DecodedImageData::ResetData() { |
| DCHECK(!is_locked_); |
| if (data_) |
| ReportUsageStats(); |
| data_ = nullptr; |
| usage_stats_ = UsageStats(); |
| } |
| |
| void GpuImageDecodeCache::DecodedImageData::ReportUsageStats() const { |
| // lock_count │ used │ result state |
| // ═══════════╪═══════╪══════════════════ |
| // 1 │ false │ WASTED_ONCE |
| // 1 │ true │ USED_ONCE |
| // >1 │ false │ WASTED_RELOCKED |
| // >1 │ true │ USED_RELOCKED |
| // Note that it's important not to reorder the following enums, since the |
| // numerical values are used in the histogram code. |
| enum State : int { |
| DECODED_IMAGE_STATE_WASTED_ONCE, |
| DECODED_IMAGE_STATE_USED_ONCE, |
| DECODED_IMAGE_STATE_WASTED_RELOCKED, |
| DECODED_IMAGE_STATE_USED_RELOCKED, |
| DECODED_IMAGE_STATE_COUNT |
| } state = DECODED_IMAGE_STATE_WASTED_ONCE; |
| |
| if (usage_stats_.lock_count == 1) { |
| if (usage_stats_.used) |
| state = DECODED_IMAGE_STATE_USED_ONCE; |
| else |
| state = DECODED_IMAGE_STATE_WASTED_ONCE; |
| } else { |
| if (usage_stats_.used) |
| state = DECODED_IMAGE_STATE_USED_RELOCKED; |
| else |
| state = DECODED_IMAGE_STATE_WASTED_RELOCKED; |
| } |
| |
| UMA_HISTOGRAM_ENUMERATION("Renderer4.GpuImageDecodeState", state, |
| DECODED_IMAGE_STATE_COUNT); |
| UMA_HISTOGRAM_BOOLEAN("Renderer4.GpuImageDecodeState.FirstLockWasted", |
| usage_stats_.first_lock_wasted); |
| } |
| |
| GpuImageDecodeCache::UploadedImageData::UploadedImageData() = default; |
| GpuImageDecodeCache::UploadedImageData::~UploadedImageData() { |
| SetImage(nullptr); |
| } |
| |
| void GpuImageDecodeCache::UploadedImageData::SetImage(sk_sp<SkImage> image) { |
| DCHECK(!image_ || !image); |
| if (image_) { |
| ReportUsageStats(); |
| usage_stats_ = UsageStats(); |
| } |
| image_ = std::move(image); |
| } |
| |
| void GpuImageDecodeCache::UploadedImageData::ReportUsageStats() const { |
| UMA_HISTOGRAM_BOOLEAN("Renderer4.GpuImageUploadState.Used", |
| usage_stats_.used); |
| UMA_HISTOGRAM_BOOLEAN("Renderer4.GpuImageUploadState.FirstRefWasted", |
| usage_stats_.first_ref_wasted); |
| } |
| |
| GpuImageDecodeCache::ImageData::ImageData( |
| DecodedDataMode mode, |
| size_t size, |
| const gfx::ColorSpace& target_color_space, |
| const SkImage::DeferredTextureImageUsageParams& upload_params) |
| : mode(mode), |
| size(size), |
| target_color_space(target_color_space), |
| upload_params(upload_params) {} |
| |
| GpuImageDecodeCache::ImageData::~ImageData() { |
| // We should never delete ImageData while it is in use or before it has been |
| // cleaned up. |
| DCHECK_EQ(0u, upload.ref_count); |
| DCHECK_EQ(0u, decode.ref_count); |
| DCHECK_EQ(false, decode.is_locked()); |
| // This should always be cleaned up before deleting the image, as it needs to |
| // be freed with the GL context lock held. |
| DCHECK(!upload.image()); |
| } |
| |
| GpuImageDecodeCache::GpuImageDecodeCache(ContextProvider* context, |
| ResourceFormat decode_format, |
| size_t max_working_set_bytes, |
| size_t max_cache_bytes) |
| : format_(decode_format), |
| context_(context), |
| persistent_cache_(PersistentCache::NO_AUTO_EVICT), |
| max_working_set_bytes_(max_working_set_bytes), |
| normal_max_cache_bytes_(max_cache_bytes) { |
| DCHECK_GE(max_working_set_bytes_, normal_max_cache_bytes_); |
| |
| // Acquire the context_lock so that we can safely retrieve the |
| // GrContextThreadSafeProxy. This proxy can then be used with no lock held. |
| { |
| ContextProvider::ScopedContextLock context_lock(context_); |
| context_threadsafe_proxy_ = sk_sp<GrContextThreadSafeProxy>( |
| context->GrContext()->threadSafeProxy()); |
| } |
| |
| // In certain cases, ThreadTaskRunnerHandle isn't set (Android Webview). |
| // Don't register a dump provider in these cases. |
| if (base::ThreadTaskRunnerHandle::IsSet()) { |
| base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider( |
| this, "cc::GpuImageDecodeCache", base::ThreadTaskRunnerHandle::Get()); |
| } |
| // Register this component with base::MemoryCoordinatorClientRegistry. |
| base::MemoryCoordinatorClientRegistry::GetInstance()->Register(this); |
| } |
| |
| GpuImageDecodeCache::~GpuImageDecodeCache() { |
| // Debugging crbug.com/650234. |
| CHECK_EQ(0u, in_use_cache_.size()); |
| |
| // SetShouldAggressivelyFreeResources will zero our limits and free all |
| // outstanding image memory. |
| SetShouldAggressivelyFreeResources(true); |
| |
| // It is safe to unregister, even if we didn't register in the constructor. |
| base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider( |
| this); |
| // Unregister this component with memory_coordinator::ClientRegistry. |
| base::MemoryCoordinatorClientRegistry::GetInstance()->Unregister(this); |
| } |
| |
| bool GpuImageDecodeCache::GetTaskForImageAndRef(const DrawImage& draw_image, |
| const TracingInfo& tracing_info, |
| scoped_refptr<TileTask>* task) { |
| return GetTaskForImageAndRefInternal( |
| draw_image, tracing_info, DecodeTaskType::PART_OF_UPLOAD_TASK, task); |
| } |
| |
| bool GpuImageDecodeCache::GetOutOfRasterDecodeTaskForImageAndRef( |
| const DrawImage& draw_image, |
| scoped_refptr<TileTask>* task) { |
| return GetTaskForImageAndRefInternal( |
| draw_image, TracingInfo(), DecodeTaskType::STAND_ALONE_DECODE_TASK, task); |
| } |
| |
| bool GpuImageDecodeCache::GetTaskForImageAndRefInternal( |
| const DrawImage& draw_image, |
| const TracingInfo& tracing_info, |
| DecodeTaskType task_type, |
| scoped_refptr<TileTask>* task) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::GetTaskForImageAndRef"); |
| if (SkipImage(draw_image)) { |
| *task = nullptr; |
| return false; |
| } |
| |
| base::AutoLock lock(lock_); |
| const auto image_id = draw_image.image()->uniqueID(); |
| ImageData* image_data = GetImageDataForDrawImage(draw_image); |
| scoped_refptr<ImageData> new_data; |
| if (!image_data) { |
| // We need an ImageData, create one now. |
| new_data = CreateImageData(draw_image); |
| image_data = new_data.get(); |
| } else if (image_data->is_at_raster) { |
| // Image is at-raster, just return, this usage will be at-raster as well. |
| *task = nullptr; |
| return false; |
| } else if (image_data->decode.decode_failure) { |
| // We have already tried and failed to decode this image, so just return. |
| *task = nullptr; |
| return false; |
| } else if (image_data->upload.image()) { |
| // The image is already uploaded, ref and return. |
| RefImage(draw_image); |
| *task = nullptr; |
| return true; |
| } else if (task_type == DecodeTaskType::PART_OF_UPLOAD_TASK && |
| image_data->upload.task) { |
| // We had an existing upload task, ref the image and return the task. |
| RefImage(draw_image); |
| *task = image_data->upload.task; |
| return true; |
| } else if (task_type == DecodeTaskType::STAND_ALONE_DECODE_TASK && |
| image_data->decode.stand_alone_task) { |
| // We had an existing out of raster task, ref the image and return the task. |
| RefImage(draw_image); |
| *task = image_data->decode.stand_alone_task; |
| return true; |
| } |
| |
| // Ensure that the image we're about to decode/upload will fit in memory. |
| if (!EnsureCapacity(image_data->size)) { |
| // Image will not fit, do an at-raster decode. |
| *task = nullptr; |
| return false; |
| } |
| |
| // If we had to create new image data, add it to our map now that we know it |
| // will fit. |
| if (new_data) |
| persistent_cache_.Put(image_id, std::move(new_data)); |
| |
| // Ref the image before creating a task - this ref is owned by the caller, and |
| // it is their responsibility to release it by calling UnrefImage. |
| RefImage(draw_image); |
| |
| if (task_type == DecodeTaskType::PART_OF_UPLOAD_TASK) { |
| // Ref image and create a upload and decode tasks. We will release this ref |
| // in UploadTaskCompleted. |
| RefImage(draw_image); |
| *task = make_scoped_refptr(new ImageUploadTaskImpl( |
| this, draw_image, |
| GetImageDecodeTaskAndRef(draw_image, tracing_info, task_type), |
| tracing_info)); |
| image_data->upload.task = *task; |
| } else { |
| *task = GetImageDecodeTaskAndRef(draw_image, tracing_info, task_type); |
| } |
| |
| return true; |
| } |
| |
| void GpuImageDecodeCache::UnrefImage(const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::UnrefImage"); |
| base::AutoLock lock(lock_); |
| UnrefImageInternal(draw_image); |
| } |
| |
| DecodedDrawImage GpuImageDecodeCache::GetDecodedImageForDraw( |
| const DrawImage& draw_image) { |
| TRACE_EVENT0("cc", "GpuImageDecodeCache::GetDecodedImageForDraw"); |
| |
| // We are being called during raster. The context lock must already be |
| // acquired by the caller. |
| context_->GetLock()->AssertAcquired(); |
| |
| if (SkipImage(draw_image)) |
| return DecodedDrawImage(nullptr, draw_image.filter_quality()); |
| |
| base::AutoLock lock(lock_); |
| ImageData* image_data = GetImageDataForDrawImage(draw_image); |
| if (!image_data) { |
| // We didn't find the image, create a new entry. |
| auto data = CreateImageData(draw_image); |
| image_data = data.get(); |
| persistent_cache_.Put(draw_image.image()->uniqueID(), std::move(data)); |
| } |
| |
| if (!image_data->upload.budgeted) { |
| // If image data is not budgeted by this point, it is at-raster. |
| image_data->is_at_raster = true; |
| } |
| |
| // Ref the image and decode so that they stay alive while we are |
| // decoding/uploading. |
| RefImage(draw_image); |
| RefImageDecode(draw_image); |
| |
| // We may or may not need to decode and upload the image we've found, the |
| // following functions early-out to if we already decoded. |
| DecodeImageIfNecessary(draw_image, image_data); |
| UploadImageIfNecessary(draw_image, image_data); |
| // Unref the image decode, but not the image. The image ref will be released |
| // in DrawWithImageFinished. |
| UnrefImageDecode(draw_image); |
| |
| sk_sp<SkImage> image = image_data->upload.image(); |
| image_data->upload.mark_used(); |
| DCHECK(image || image_data->decode.decode_failure); |
| |
| SkSize scale_factor = CalculateScaleFactorForMipLevel( |
| draw_image, image_data->upload_params.fPreScaleMipLevel); |
| DecodedDrawImage decoded_draw_image(std::move(image), SkSize(), scale_factor, |
| draw_image.filter_quality()); |
| decoded_draw_image.set_at_raster_decode(image_data->is_at_raster); |
| return decoded_draw_image; |
| } |
| |
| void GpuImageDecodeCache::DrawWithImageFinished( |
| const DrawImage& draw_image, |
| const DecodedDrawImage& decoded_draw_image) { |
| TRACE_EVENT0("cc", "GpuImageDecodeCache::DrawWithImageFinished"); |
| |
| // We are being called during raster. The context lock must already be |
| // acquired by the caller. |
| context_->GetLock()->AssertAcquired(); |
| |
| if (SkipImage(draw_image)) |
| return; |
| |
| base::AutoLock lock(lock_); |
| UnrefImageInternal(draw_image); |
| |
| // We are mid-draw and holding the context lock, ensure we clean up any |
| // textures (especially at-raster), which may have just been marked for |
| // deletion by UnrefImage. |
| DeletePendingImages(); |
| } |
| |
| void GpuImageDecodeCache::ReduceCacheUsage() { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::ReduceCacheUsage"); |
| base::AutoLock lock(lock_); |
| EnsureCapacity(0); |
| } |
| |
| void GpuImageDecodeCache::SetShouldAggressivelyFreeResources( |
| bool aggressively_free_resources) { |
| TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::SetShouldAggressivelyFreeResources", |
| "agressive_free_resources", aggressively_free_resources); |
| if (aggressively_free_resources) { |
| ContextProvider::ScopedContextLock context_lock(context_); |
| base::AutoLock lock(lock_); |
| // We want to keep as little in our cache as possible. Set our memory limit |
| // to zero and EnsureCapacity to clean up memory. |
| cached_bytes_limit_ = kSuspendedOrInvisibleMaxGpuImageBytes; |
| EnsureCapacity(0); |
| |
| // We are holding the context lock, so finish cleaning up deleted images |
| // now. |
| DeletePendingImages(); |
| } else { |
| base::AutoLock lock(lock_); |
| cached_bytes_limit_ = normal_max_cache_bytes_; |
| } |
| } |
| |
| void GpuImageDecodeCache::ClearCache() { |
| base::AutoLock lock(lock_); |
| for (auto it = persistent_cache_.begin(); it != persistent_cache_.end();) { |
| if (it->second->decode.ref_count != 0 || |
| it->second->upload.ref_count != 0) { |
| ++it; |
| continue; |
| } |
| |
| if (it->second->upload.image()) { |
| bytes_used_ -= it->second->size; |
| images_pending_deletion_.push_back(it->second->upload.image()); |
| it->second->upload.SetImage(nullptr); |
| it->second->upload.budgeted = false; |
| } |
| |
| it = persistent_cache_.Erase(it); |
| } |
| } |
| |
| bool GpuImageDecodeCache::OnMemoryDump( |
| const base::trace_event::MemoryDumpArgs& args, |
| base::trace_event::ProcessMemoryDump* pmd) { |
| using base::trace_event::MemoryAllocatorDump; |
| using base::trace_event::MemoryAllocatorDumpGuid; |
| using base::trace_event::MemoryDumpLevelOfDetail; |
| |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::OnMemoryDump"); |
| |
| if (args.level_of_detail == MemoryDumpLevelOfDetail::BACKGROUND) { |
| std::string dump_name = base::StringPrintf( |
| "cc/image_memory/cache_0x%" PRIXPTR, reinterpret_cast<uintptr_t>(this)); |
| MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(dump_name); |
| dump->AddScalar(MemoryAllocatorDump::kNameSize, |
| MemoryAllocatorDump::kUnitsBytes, bytes_used_); |
| |
| // Early out, no need for more detail in a BACKGROUND dump. |
| return true; |
| } |
| |
| for (const auto& image_pair : persistent_cache_) { |
| const ImageData* image_data = image_pair.second.get(); |
| const uint32_t image_id = image_pair.first; |
| |
| // If we have discardable decoded data, dump this here. |
| if (image_data->decode.data()) { |
| std::string discardable_dump_name = base::StringPrintf( |
| "cc/image_memory/cache_0x%" PRIXPTR "/discardable/image_%d", |
| reinterpret_cast<uintptr_t>(this), image_id); |
| MemoryAllocatorDump* dump = |
| image_data->decode.data()->CreateMemoryAllocatorDump( |
| discardable_dump_name.c_str(), pmd); |
| // Dump the "locked_size" as an additional column. |
| // This lets us see the amount of discardable which is contributing to |
| // memory pressure. |
| size_t locked_size = |
| image_data->decode.is_locked() ? image_data->size : 0u; |
| dump->AddScalar("locked_size", MemoryAllocatorDump::kUnitsBytes, |
| locked_size); |
| } |
| |
| // If we have an uploaded image (that is actually on the GPU, not just a |
| // CPU |
| // wrapper), upload it here. |
| if (image_data->upload.image() && |
| image_data->mode == DecodedDataMode::GPU) { |
| std::string gpu_dump_name = base::StringPrintf( |
| "cc/image_memory/cache_0x%" PRIXPTR "/gpu/image_%d", |
| reinterpret_cast<uintptr_t>(this), image_id); |
| MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(gpu_dump_name); |
| dump->AddScalar(MemoryAllocatorDump::kNameSize, |
| MemoryAllocatorDump::kUnitsBytes, image_data->size); |
| |
| // Create a global shred GUID to associate this data with its GPU |
| // process |
| // counterpart. |
| GLuint gl_id = skia::GrBackendObjectToGrGLTextureInfo( |
| image_data->upload.image()->getTextureHandle( |
| false /* flushPendingGrContextIO */)) |
| ->fID; |
| MemoryAllocatorDumpGuid guid = gl::GetGLTextureClientGUIDForTracing( |
| context_->ContextSupport()->ShareGroupTracingGUID(), gl_id); |
| |
| // kImportance is somewhat arbitrary - we chose 3 to be higher than the |
| // value used in the GPU process (1), and Skia (2), causing us to appear |
| // as the owner in memory traces. |
| const int kImportance = 3; |
| pmd->CreateSharedGlobalAllocatorDump(guid); |
| pmd->AddOwnershipEdge(dump->guid(), guid, kImportance); |
| } |
| } |
| |
| return true; |
| } |
| |
| void GpuImageDecodeCache::DecodeImage(const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::DecodeImage"); |
| base::AutoLock lock(lock_); |
| ImageData* image_data = GetImageDataForDrawImage(draw_image); |
| DCHECK(image_data); |
| DCHECK(!image_data->is_at_raster); |
| DecodeImageIfNecessary(draw_image, image_data); |
| } |
| |
| void GpuImageDecodeCache::UploadImage(const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::UploadImage"); |
| ContextProvider::ScopedContextLock context_lock(context_); |
| base::AutoLock lock(lock_); |
| ImageData* image_data = GetImageDataForDrawImage(draw_image); |
| DCHECK(image_data); |
| DCHECK(!image_data->is_at_raster); |
| UploadImageIfNecessary(draw_image, image_data); |
| } |
| |
| void GpuImageDecodeCache::OnImageDecodeTaskCompleted( |
| const DrawImage& draw_image, |
| DecodeTaskType task_type) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::OnImageDecodeTaskCompleted"); |
| base::AutoLock lock(lock_); |
| // Decode task is complete, remove our reference to it. |
| ImageData* image_data = GetImageDataForDrawImage(draw_image); |
| DCHECK(image_data); |
| if (task_type == DecodeTaskType::PART_OF_UPLOAD_TASK) { |
| DCHECK(image_data->decode.task); |
| image_data->decode.task = nullptr; |
| } else { |
| DCHECK(task_type == DecodeTaskType::STAND_ALONE_DECODE_TASK); |
| DCHECK(image_data->decode.stand_alone_task); |
| image_data->decode.stand_alone_task = nullptr; |
| } |
| |
| // While the decode task is active, we keep a ref on the decoded data. |
| // Release that ref now. |
| UnrefImageDecode(draw_image); |
| } |
| |
| void GpuImageDecodeCache::OnImageUploadTaskCompleted( |
| const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::OnImageUploadTaskCompleted"); |
| base::AutoLock lock(lock_); |
| // Upload task is complete, remove our reference to it. |
| ImageData* image_data = GetImageDataForDrawImage(draw_image); |
| DCHECK(image_data); |
| DCHECK(image_data->upload.task); |
| image_data->upload.task = nullptr; |
| |
| // While the upload task is active, we keep a ref on both the image it will be |
| // populating, as well as the decode it needs to populate it. Release these |
| // refs now. |
| UnrefImageDecode(draw_image); |
| UnrefImageInternal(draw_image); |
| } |
| |
| // Checks if an existing image decode exists. If not, returns a task to produce |
| // the requested decode. |
| scoped_refptr<TileTask> GpuImageDecodeCache::GetImageDecodeTaskAndRef( |
| const DrawImage& draw_image, |
| const TracingInfo& tracing_info, |
| DecodeTaskType task_type) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::GetImageDecodeTaskAndRef"); |
| lock_.AssertAcquired(); |
| |
| // This ref is kept alive while an upload task may need this decode. We |
| // release this ref in UploadTaskCompleted. |
| if (task_type == DecodeTaskType::PART_OF_UPLOAD_TASK) |
| RefImageDecode(draw_image); |
| |
| ImageData* image_data = GetImageDataForDrawImage(draw_image); |
| DCHECK(image_data); |
| if (image_data->decode.is_locked()) { |
| // We should never be creating a decode task for an at raster image. |
| DCHECK(!image_data->is_at_raster); |
| // We should never be creating a decode for an already-uploaded image. |
| DCHECK(!image_data->upload.image()); |
| return nullptr; |
| } |
| |
| // We didn't have an existing locked image, create a task to lock or decode. |
| scoped_refptr<TileTask>& existing_task = |
| (task_type == DecodeTaskType::PART_OF_UPLOAD_TASK) |
| ? image_data->decode.task |
| : image_data->decode.stand_alone_task; |
| if (!existing_task) { |
| // Ref image decode and create a decode task. This ref will be released in |
| // DecodeTaskCompleted. |
| RefImageDecode(draw_image); |
| existing_task = make_scoped_refptr( |
| new ImageDecodeTaskImpl(this, draw_image, tracing_info, task_type)); |
| } |
| return existing_task; |
| } |
| |
| void GpuImageDecodeCache::RefImageDecode(const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::RefImageDecode"); |
| lock_.AssertAcquired(); |
| auto found = in_use_cache_.find(InUseCacheKey::FromDrawImage(draw_image)); |
| DCHECK(found != in_use_cache_.end()); |
| ++found->second.ref_count; |
| ++found->second.image_data->decode.ref_count; |
| OwnershipChanged(draw_image, found->second.image_data.get()); |
| } |
| |
| void GpuImageDecodeCache::UnrefImageDecode(const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::UnrefImageDecode"); |
| lock_.AssertAcquired(); |
| auto found = in_use_cache_.find(InUseCacheKey::FromDrawImage(draw_image)); |
| DCHECK(found != in_use_cache_.end()); |
| DCHECK_GT(found->second.image_data->decode.ref_count, 0u); |
| DCHECK_GT(found->second.ref_count, 0u); |
| --found->second.ref_count; |
| --found->second.image_data->decode.ref_count; |
| OwnershipChanged(draw_image, found->second.image_data.get()); |
| if (found->second.ref_count == 0u) { |
| in_use_cache_.erase(found); |
| } |
| } |
| |
| void GpuImageDecodeCache::RefImage(const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::RefImage"); |
| lock_.AssertAcquired(); |
| InUseCacheKey key = InUseCacheKey::FromDrawImage(draw_image); |
| auto found = in_use_cache_.find(key); |
| |
| // If no secondary cache entry was found for the given |draw_image|, then |
| // the draw_image only exists in the |persistent_cache_|. Create an in-use |
| // cache entry now. |
| if (found == in_use_cache_.end()) { |
| auto found_image = persistent_cache_.Peek(draw_image.image()->uniqueID()); |
| DCHECK(found_image != persistent_cache_.end()); |
| DCHECK(IsCompatible(found_image->second.get(), draw_image)); |
| found = in_use_cache_ |
| .insert(InUseCache::value_type( |
| key, InUseCacheEntry(found_image->second))) |
| .first; |
| } |
| |
| DCHECK(found != in_use_cache_.end()); |
| ++found->second.ref_count; |
| ++found->second.image_data->upload.ref_count; |
| OwnershipChanged(draw_image, found->second.image_data.get()); |
| } |
| |
| void GpuImageDecodeCache::UnrefImageInternal(const DrawImage& draw_image) { |
| lock_.AssertAcquired(); |
| auto found = in_use_cache_.find(InUseCacheKey::FromDrawImage(draw_image)); |
| DCHECK(found != in_use_cache_.end()); |
| DCHECK_GT(found->second.image_data->upload.ref_count, 0u); |
| DCHECK_GT(found->second.ref_count, 0u); |
| --found->second.ref_count; |
| --found->second.image_data->upload.ref_count; |
| OwnershipChanged(draw_image, found->second.image_data.get()); |
| if (found->second.ref_count == 0u) { |
| in_use_cache_.erase(found); |
| } |
| } |
| |
| // Called any time an image or decode ref count changes. Takes care of any |
| // necessary memory budget book-keeping and cleanup. |
| void GpuImageDecodeCache::OwnershipChanged(const DrawImage& draw_image, |
| ImageData* image_data) { |
| lock_.AssertAcquired(); |
| |
| bool has_any_refs = |
| image_data->upload.ref_count > 0 || image_data->decode.ref_count > 0; |
| |
| // Don't keep around completely empty images. This can happen if an image's |
| // decode/upload tasks were both cancelled before completing. |
| if (!has_any_refs && !image_data->upload.image() && |
| !image_data->decode.data()) { |
| auto found_persistent = |
| persistent_cache_.Peek(draw_image.image()->uniqueID()); |
| if (found_persistent != persistent_cache_.end()) |
| persistent_cache_.Erase(found_persistent); |
| } |
| |
| // Don't keep around orphaned images. |
| if (image_data->is_orphaned && !has_any_refs) { |
| images_pending_deletion_.push_back(std::move(image_data->upload.image())); |
| image_data->upload.SetImage(nullptr); |
| } |
| |
| // Don't keep CPU images if they are unused, these images can be recreated by |
| // re-locking discardable (rather than requiring a full upload like GPU |
| // images). |
| if (image_data->mode == DecodedDataMode::CPU && !has_any_refs) { |
| images_pending_deletion_.push_back(image_data->upload.image()); |
| image_data->upload.SetImage(nullptr); |
| } |
| |
| if (image_data->is_at_raster && !has_any_refs) { |
| // We have an at-raster image which has reached zero refs. If it won't fit |
| // in our cache, delete the image to allow it to fit. |
| if (image_data->upload.image() && !CanFitInCache(image_data->size)) { |
| images_pending_deletion_.push_back(image_data->upload.image()); |
| image_data->upload.SetImage(nullptr); |
| } |
| |
| // We now have an at-raster image which will fit in our cache. Convert it |
| // to not-at-raster. |
| image_data->is_at_raster = false; |
| if (image_data->upload.image()) { |
| bytes_used_ += image_data->size; |
| image_data->upload.budgeted = true; |
| } |
| } |
| |
| // If we have image refs on a non-at-raster image, it must be budgeted, as it |
| // is either uploaded or pending upload. |
| if (image_data->upload.ref_count > 0 && !image_data->upload.budgeted && |
| !image_data->is_at_raster) { |
| // We should only be taking non-at-raster refs on images that fit in cache. |
| DCHECK(CanFitInWorkingSet(image_data->size)); |
| |
| bytes_used_ += image_data->size; |
| image_data->upload.budgeted = true; |
| } |
| |
| // If we have no image refs on an image, it should only be budgeted if it has |
| // an uploaded image. If no image exists (upload was cancelled), we should |
| // un-budget the image. |
| if (image_data->upload.ref_count == 0 && image_data->upload.budgeted && |
| !image_data->upload.image()) { |
| DCHECK_GE(bytes_used_, image_data->size); |
| bytes_used_ -= image_data->size; |
| image_data->upload.budgeted = false; |
| } |
| |
| // We should unlock the discardable memory for the image in two cases: |
| // 1) The image is no longer being used (no decode or upload refs). |
| // 2) This is a GPU backed image that has already been uploaded (no decode |
| // refs, and we actually already have an image). |
| bool should_unlock_discardable = |
| !has_any_refs || |
| (image_data->mode == DecodedDataMode::GPU && |
| !image_data->decode.ref_count && image_data->upload.image()); |
| |
| if (should_unlock_discardable && image_data->decode.is_locked()) { |
| DCHECK(image_data->decode.data()); |
| image_data->decode.Unlock(); |
| } |
| |
| // EnsureCapacity to make sure we are under our cache limits. |
| EnsureCapacity(0); |
| |
| #if DCHECK_IS_ON() |
| // Sanity check the above logic. |
| if (image_data->upload.image()) { |
| DCHECK(image_data->is_at_raster || image_data->upload.budgeted); |
| if (image_data->mode == DecodedDataMode::CPU) |
| DCHECK(image_data->decode.is_locked()); |
| } else { |
| DCHECK(!image_data->upload.budgeted || image_data->upload.ref_count > 0); |
| } |
| #endif |
| } |
| |
| // Ensures that we can fit a new image of size |required_size| in our working |
| // set. In doing so, this function will free unreferenced image data as |
| // necessary to create rooom. |
| bool GpuImageDecodeCache::EnsureCapacity(size_t required_size) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::EnsureCapacity"); |
| lock_.AssertAcquired(); |
| |
| // While we only care whether |required_size| fits in our working set, we |
| // also want to keep our cache under-budget if possible. Working set size |
| // will always match or exceed cache size, so keeping the cache under budget |
| // may be impossible. |
| if (CanFitInCache(required_size) && !ExceedsPreferredCount()) |
| return true; |
| |
| // While we are over memory or preferred item capacity, we iterate through |
| // our set of cached image data in LRU order. For each image, we can do two |
| // things: 1) We can free the uploaded image, reducing the memory usage of |
| // the cache and 2) we can remove the entry entirely, reducing the count of |
| // elements in the cache. |
| for (auto it = persistent_cache_.rbegin(); it != persistent_cache_.rend();) { |
| if (it->second->decode.ref_count != 0 || |
| it->second->upload.ref_count != 0) { |
| ++it; |
| continue; |
| } |
| |
| // Current entry has no refs. Ensure it is not locked. |
| DCHECK(!it->second->decode.is_locked()); |
| |
| // If an image without refs is budgeted, it must have an associated image |
| // upload. |
| DCHECK(!it->second->upload.budgeted || it->second->upload.image()); |
| |
| // Free the uploaded image if possible. |
| if (it->second->upload.image()) { |
| DCHECK(it->second->upload.budgeted); |
| DCHECK_GE(bytes_used_, it->second->size); |
| bytes_used_ -= it->second->size; |
| images_pending_deletion_.push_back(it->second->upload.image()); |
| it->second->upload.SetImage(nullptr); |
| it->second->upload.budgeted = false; |
| } |
| |
| // Free the entire entry if necessary. |
| if (ExceedsPreferredCount()) { |
| it = persistent_cache_.Erase(it); |
| } else { |
| ++it; |
| } |
| |
| if (CanFitInCache(required_size) && !ExceedsPreferredCount()) |
| return true; |
| } |
| |
| return CanFitInWorkingSet(required_size); |
| } |
| |
| bool GpuImageDecodeCache::CanFitInCache(size_t size) const { |
| lock_.AssertAcquired(); |
| |
| size_t bytes_limit; |
| if (memory_state_ == base::MemoryState::NORMAL) { |
| bytes_limit = cached_bytes_limit_; |
| } else if (memory_state_ == base::MemoryState::THROTTLED) { |
| bytes_limit = cached_bytes_limit_ / kThrottledCacheSizeReductionFactor; |
| } else { |
| DCHECK_EQ(base::MemoryState::SUSPENDED, memory_state_); |
| bytes_limit = kSuspendedOrInvisibleMaxGpuImageBytes; |
| } |
| |
| base::CheckedNumeric<uint32_t> new_size(bytes_used_); |
| new_size += size; |
| return new_size.IsValid() && new_size.ValueOrDie() <= bytes_limit; |
| } |
| |
| bool GpuImageDecodeCache::CanFitInWorkingSet(size_t size) const { |
| lock_.AssertAcquired(); |
| |
| base::CheckedNumeric<uint32_t> new_size(bytes_used_); |
| new_size += size; |
| return new_size.IsValid() && new_size.ValueOrDie() <= max_working_set_bytes_; |
| } |
| |
| bool GpuImageDecodeCache::ExceedsPreferredCount() const { |
| lock_.AssertAcquired(); |
| |
| size_t items_limit; |
| if (memory_state_ == base::MemoryState::NORMAL) { |
| items_limit = kNormalMaxItemsInCache; |
| } else if (memory_state_ == base::MemoryState::THROTTLED) { |
| items_limit = kThrottledMaxItemsInCache; |
| } else { |
| DCHECK_EQ(base::MemoryState::SUSPENDED, memory_state_); |
| items_limit = kSuspendedMaxItemsInCache; |
| } |
| |
| return persistent_cache_.size() > items_limit; |
| } |
| |
| void GpuImageDecodeCache::DecodeImageIfNecessary(const DrawImage& draw_image, |
| ImageData* image_data) { |
| lock_.AssertAcquired(); |
| |
| DCHECK_GT(image_data->decode.ref_count, 0u); |
| |
| if (image_data->decode.decode_failure) { |
| // We have already tried and failed to decode this image. Don't try again. |
| return; |
| } |
| |
| if (image_data->upload.image()) { |
| // We already have an uploaded image, no reason to decode. |
| return; |
| } |
| |
| if (image_data->decode.data() && |
| (image_data->decode.is_locked() || image_data->decode.Lock())) { |
| // We already decoded this, or we just needed to lock, early out. |
| return; |
| } |
| |
| TRACE_EVENT0("cc", "GpuImageDecodeCache::DecodeImage"); |
| |
| image_data->decode.ResetData(); |
| std::unique_ptr<base::DiscardableMemory> backing_memory; |
| { |
| base::AutoUnlock unlock(lock_); |
| |
| backing_memory = base::DiscardableMemoryAllocator::GetInstance() |
| ->AllocateLockedDiscardableMemory(image_data->size); |
| |
| switch (image_data->mode) { |
| case DecodedDataMode::CPU: { |
| SkImageInfo image_info = CreateImageInfoForDrawImage( |
| draw_image, image_data->upload_params.fPreScaleMipLevel); |
| // In order to match GPU scaling quality (which uses mip-maps at high |
| // quality), we want to use at most medium filter quality for the |
| // scale. |
| SkPixmap image_pixmap(image_info.makeColorSpace(nullptr), |
| backing_memory->data(), image_info.minRowBytes()); |
| // Note that scalePixels falls back to readPixels if the sale is 1x, so |
| // no need to special case that as an optimization. |
| if (!draw_image.image()->scalePixels( |
| image_pixmap, CalculateUploadScaleFilterQuality(draw_image), |
| SkImage::kDisallow_CachingHint)) { |
| DLOG(ERROR) << "scalePixels failed."; |
| backing_memory->Unlock(); |
| backing_memory.reset(); |
| } |
| break; |
| } |
| case DecodedDataMode::GPU: { |
| // TODO(crbug.com/649167): Params should not have changed since initial |
| // sizing. Somehow this still happens. We should investigate and re-add |
| // DCHECKs here to enforce this. |
| if (!draw_image.image()->getDeferredTextureImageData( |
| *context_threadsafe_proxy_.get(), &image_data->upload_params, 1, |
| backing_memory->data(), nullptr)) { |
| DLOG(ERROR) << "getDeferredTextureImageData failed despite params " |
| << "having validated."; |
| backing_memory->Unlock(); |
| backing_memory.reset(); |
| } |
| break; |
| } |
| } |
| } |
| |
| if (image_data->decode.data()) { |
| // An at-raster task decoded this before us. Ingore our decode. |
| return; |
| } |
| |
| if (!backing_memory) { |
| // If |backing_memory| was not populated, we had a non-decodable image. |
| image_data->decode.decode_failure = true; |
| return; |
| } |
| |
| image_data->decode.SetLockedData(std::move(backing_memory)); |
| } |
| |
| void GpuImageDecodeCache::UploadImageIfNecessary(const DrawImage& draw_image, |
| ImageData* image_data) { |
| context_->GetLock()->AssertAcquired(); |
| lock_.AssertAcquired(); |
| |
| if (image_data->decode.decode_failure) { |
| // We were unnable to decode this image. Don't try to upload. |
| return; |
| } |
| |
| if (image_data->upload.image()) { |
| // Someone has uploaded this image before us (at raster). |
| return; |
| } |
| |
| TRACE_EVENT0("cc", "GpuImageDecodeCache::UploadImage"); |
| DCHECK(image_data->decode.is_locked()); |
| DCHECK_GT(image_data->decode.ref_count, 0u); |
| DCHECK_GT(image_data->upload.ref_count, 0u); |
| |
| // We are about to upload a new image and are holding the context lock. |
| // Ensure that any images which have been marked for deletion are actually |
| // cleaned up so we don't exceed our memory limit during this upload. |
| DeletePendingImages(); |
| |
| sk_sp<SkImage> uploaded_image; |
| { |
| base::AutoUnlock unlock(lock_); |
| switch (image_data->mode) { |
| case DecodedDataMode::CPU: { |
| SkImageInfo image_info = CreateImageInfoForDrawImage( |
| draw_image, image_data->upload_params.fPreScaleMipLevel); |
| SkPixmap pixmap(image_info, image_data->decode.data()->data(), |
| image_info.minRowBytes()); |
| uploaded_image = |
| SkImage::MakeFromRaster(pixmap, [](const void*, void*) {}, nullptr); |
| break; |
| } |
| case DecodedDataMode::GPU: { |
| uploaded_image = SkImage::MakeFromDeferredTextureImageData( |
| context_->GrContext(), image_data->decode.data()->data(), |
| SkBudgeted::kNo); |
| break; |
| } |
| } |
| } |
| image_data->decode.mark_used(); |
| DCHECK(uploaded_image); |
| |
| if (draw_image.target_color_space().IsValid()) { |
| TRACE_EVENT0("cc", "GpuImageDecodeCache::UploadImage - color conversion"); |
| uploaded_image = uploaded_image->makeColorSpace( |
| draw_image.target_color_space().ToSkColorSpace(), |
| SkTransferFunctionBehavior::kIgnore); |
| } |
| DCHECK(uploaded_image); |
| |
| // At-raster may have decoded this while we were unlocked. If so, ignore our |
| // result. |
| if (!image_data->upload.image()) |
| image_data->upload.SetImage(std::move(uploaded_image)); |
| } |
| |
| scoped_refptr<GpuImageDecodeCache::ImageData> |
| GpuImageDecodeCache::CreateImageData(const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::CreateImageData"); |
| lock_.AssertAcquired(); |
| |
| DecodedDataMode mode; |
| int upload_scale_mip_level = CalculateUploadScaleMipLevel(draw_image); |
| auto params = SkImage::DeferredTextureImageUsageParams( |
| draw_image.matrix(), CalculateUploadScaleFilterQuality(draw_image), |
| upload_scale_mip_level); |
| size_t data_size = draw_image.image()->getDeferredTextureImageData( |
| *context_threadsafe_proxy_.get(), ¶ms, 1, nullptr, nullptr); |
| |
| if (data_size == 0) { |
| // Can't upload image, too large or other failure. Try to use SW fallback. |
| SkImageInfo image_info = |
| CreateImageInfoForDrawImage(draw_image, upload_scale_mip_level); |
| data_size = image_info.getSafeSize(image_info.minRowBytes()); |
| mode = DecodedDataMode::CPU; |
| } else { |
| mode = DecodedDataMode::GPU; |
| } |
| |
| return make_scoped_refptr( |
| new ImageData(mode, data_size, draw_image.target_color_space(), params)); |
| } |
| |
| void GpuImageDecodeCache::DeletePendingImages() { |
| context_->GetLock()->AssertAcquired(); |
| lock_.AssertAcquired(); |
| images_pending_deletion_.clear(); |
| } |
| |
| SkImageInfo GpuImageDecodeCache::CreateImageInfoForDrawImage( |
| const DrawImage& draw_image, |
| int upload_scale_mip_level) const { |
| gfx::Size mip_size = |
| CalculateSizeForMipLevel(draw_image, upload_scale_mip_level); |
| return SkImageInfo::Make(mip_size.width(), mip_size.height(), |
| ResourceFormatToClosestSkColorType(format_), |
| kPremul_SkAlphaType, |
| draw_image.target_color_space().ToSkColorSpace()); |
| } |
| |
| // Tries to find an ImageData that can be used to draw the provided |
| // |draw_image|. First looks for an exact entry in our |in_use_cache_|. If one |
| // cannot be found, it looks for a compatible entry in our |persistent_cache_|. |
| GpuImageDecodeCache::ImageData* GpuImageDecodeCache::GetImageDataForDrawImage( |
| const DrawImage& draw_image) { |
| TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |
| "GpuImageDecodeCache::GetImageDataForDrawImage"); |
| lock_.AssertAcquired(); |
| auto found_in_use = |
| in_use_cache_.find(InUseCacheKey::FromDrawImage(draw_image)); |
| if (found_in_use != in_use_cache_.end()) |
| return found_in_use->second.image_data.get(); |
| |
| auto found_persistent = persistent_cache_.Get(draw_image.image()->uniqueID()); |
| if (found_persistent != persistent_cache_.end()) { |
| ImageData* image_data = found_persistent->second.get(); |
| if (IsCompatible(image_data, draw_image)) { |
| return image_data; |
| } else { |
| found_persistent->second->is_orphaned = true; |
| // Call OwnershipChanged before erasing the orphaned task from the |
| // persistent cache. This ensures that if the orphaned task has 0 |
| // references, it is cleaned up safely before it is deleted. |
| OwnershipChanged(draw_image, image_data); |
| persistent_cache_.Erase(found_persistent); |
| } |
| } |
| |
| return nullptr; |
| } |
| |
| // Determines if we can draw the provided |draw_image| using the provided |
| // |image_data|. This is true if the |image_data| is not scaled, or if it |
| // is scaled at an equal or larger scale and equal or larger quality to |
| // the provided |draw_image|. |
| bool GpuImageDecodeCache::IsCompatible(const ImageData* image_data, |
| const DrawImage& draw_image) const { |
| bool is_scaled = image_data->upload_params.fPreScaleMipLevel != 0; |
| bool scale_is_compatible = CalculateUploadScaleMipLevel(draw_image) >= |
| image_data->upload_params.fPreScaleMipLevel; |
| bool quality_is_compatible = CalculateUploadScaleFilterQuality(draw_image) <= |
| image_data->upload_params.fQuality; |
| bool color_is_compatible = |
| image_data->target_color_space == draw_image.target_color_space(); |
| if (!color_is_compatible) |
| return false; |
| if (is_scaled && (!scale_is_compatible || !quality_is_compatible)) |
| return false; |
| return true; |
| } |
| |
| size_t GpuImageDecodeCache::GetDrawImageSizeForTesting(const DrawImage& image) { |
| base::AutoLock lock(lock_); |
| scoped_refptr<ImageData> data = CreateImageData(image); |
| return data->size; |
| } |
| |
| void GpuImageDecodeCache::SetImageDecodingFailedForTesting( |
| const DrawImage& image) { |
| base::AutoLock lock(lock_); |
| auto found = persistent_cache_.Peek(image.image()->uniqueID()); |
| DCHECK(found != persistent_cache_.end()); |
| ImageData* image_data = found->second.get(); |
| image_data->decode.decode_failure = true; |
| } |
| |
| bool GpuImageDecodeCache::DiscardableIsLockedForTesting( |
| const DrawImage& image) { |
| base::AutoLock lock(lock_); |
| auto found = persistent_cache_.Peek(image.image()->uniqueID()); |
| DCHECK(found != persistent_cache_.end()); |
| ImageData* image_data = found->second.get(); |
| return image_data->decode.is_locked(); |
| } |
| |
| bool GpuImageDecodeCache::IsInInUseCacheForTesting( |
| const DrawImage& image) const { |
| auto found = in_use_cache_.find(InUseCacheKey::FromDrawImage(image)); |
| return found != in_use_cache_.end(); |
| } |
| |
| void GpuImageDecodeCache::OnMemoryStateChange(base::MemoryState state) { |
| memory_state_ = state; |
| } |
| |
| void GpuImageDecodeCache::OnPurgeMemory() { |
| base::AutoLock lock(lock_); |
| // Temporary changes |memory_state_| to free up cache as much as possible. |
| base::AutoReset<base::MemoryState> reset(&memory_state_, |
| base::MemoryState::SUSPENDED); |
| EnsureCapacity(0); |
| } |
| |
| } // namespace cc |