| // Copyright 2014 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/raster/gpu_raster_buffer_provider.h" |
| |
| #include <stdint.h> |
| |
| #include <algorithm> |
| |
| #include "base/macros.h" |
| #include "base/memory/ptr_util.h" |
| #include "base/trace_event/trace_event.h" |
| #include "cc/playback/raster_source.h" |
| #include "cc/raster/gpu_rasterizer.h" |
| #include "cc/raster/scoped_gpu_raster.h" |
| #include "cc/resources/resource.h" |
| #include "gpu/command_buffer/client/gles2_interface.h" |
| #include "third_party/skia/include/core/SkMultiPictureDraw.h" |
| #include "third_party/skia/include/core/SkPictureRecorder.h" |
| #include "third_party/skia/include/core/SkSurface.h" |
| #include "third_party/skia/include/gpu/GrContext.h" |
| |
| namespace cc { |
| namespace { |
| |
| class RasterBufferImpl : public RasterBuffer { |
| public: |
| RasterBufferImpl(GpuRasterizer* rasterizer, |
| const Resource* resource, |
| uint64_t resource_content_id, |
| uint64_t previous_content_id) |
| : rasterizer_(rasterizer), |
| lock_(rasterizer->resource_provider(), resource->id()), |
| resource_has_previous_content_( |
| resource_content_id && resource_content_id == previous_content_id) { |
| } |
| |
| // Overridden from RasterBuffer: |
| void Playback( |
| const RasterSource* raster_source, |
| const gfx::Rect& raster_full_rect, |
| const gfx::Rect& raster_dirty_rect, |
| uint64_t new_content_id, |
| float scale, |
| const RasterSource::PlaybackSettings& playback_settings) override { |
| TRACE_EVENT0("cc", "GpuRasterBuffer::Playback"); |
| // GPU raster doesn't do low res tiles, so should always include images. |
| DCHECK(!playback_settings.skip_images); |
| |
| ContextProvider::ScopedContextLock scoped_context( |
| rasterizer_->worker_context_provider()); |
| |
| gfx::Rect playback_rect = raster_full_rect; |
| if (resource_has_previous_content_) { |
| playback_rect.Intersect(raster_dirty_rect); |
| } |
| DCHECK(!playback_rect.IsEmpty()) |
| << "Why are we rastering a tile that's not dirty?"; |
| |
| // TODO(danakj): Implement partial raster with raster_dirty_rect. |
| // Rasterize source into resource. |
| rasterizer_->RasterizeSource(&lock_, raster_source, raster_full_rect, |
| playback_rect, scale, playback_settings); |
| |
| gpu::gles2::GLES2Interface* gl = scoped_context.ContextGL(); |
| const uint64_t fence_sync = gl->InsertFenceSyncCHROMIUM(); |
| |
| // Barrier to sync worker context output to cc context. |
| gl->OrderingBarrierCHROMIUM(); |
| |
| // Generate sync token after the barrier for cross context synchronization. |
| gpu::SyncToken sync_token; |
| gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, sync_token.GetData()); |
| lock_.UpdateResourceSyncToken(sync_token); |
| } |
| |
| private: |
| GpuRasterizer* rasterizer_; |
| ResourceProvider::ScopedWriteLockGr lock_; |
| bool resource_has_previous_content_; |
| |
| DISALLOW_COPY_AND_ASSIGN(RasterBufferImpl); |
| }; |
| |
| } // namespace |
| |
| GpuRasterBufferProvider::GpuRasterBufferProvider( |
| ContextProvider* compositor_context_provider, |
| ContextProvider* worker_context_provider, |
| ResourceProvider* resource_provider, |
| bool use_distance_field_text, |
| int gpu_rasterization_msaa_sample_count) |
| : compositor_context_provider_(compositor_context_provider), |
| rasterizer_(new GpuRasterizer(worker_context_provider, |
| resource_provider, |
| use_distance_field_text, |
| gpu_rasterization_msaa_sample_count)) { |
| DCHECK(compositor_context_provider_); |
| } |
| |
| GpuRasterBufferProvider::~GpuRasterBufferProvider() {} |
| |
| std::unique_ptr<RasterBuffer> GpuRasterBufferProvider::AcquireBufferForRaster( |
| const Resource* resource, |
| uint64_t resource_content_id, |
| uint64_t previous_content_id) { |
| return std::unique_ptr<RasterBuffer>(new RasterBufferImpl( |
| rasterizer_.get(), resource, resource_content_id, previous_content_id)); |
| } |
| |
| void GpuRasterBufferProvider::ReleaseBufferForRaster( |
| std::unique_ptr<RasterBuffer> buffer) { |
| // Nothing to do here. RasterBufferImpl destructor cleans up after itself. |
| } |
| |
| void GpuRasterBufferProvider::OrderingBarrier() { |
| TRACE_EVENT0("cc", "GpuRasterBufferProvider::OrderingBarrier"); |
| compositor_context_provider_->ContextGL()->OrderingBarrierCHROMIUM(); |
| } |
| |
| ResourceFormat GpuRasterBufferProvider::GetResourceFormat( |
| bool must_support_alpha) const { |
| return rasterizer_->resource_provider()->best_render_buffer_format(); |
| } |
| |
| bool GpuRasterBufferProvider::GetResourceRequiresSwizzle( |
| bool must_support_alpha) const { |
| // This doesn't require a swizzle because we rasterize to the correct format. |
| return false; |
| } |
| |
| void GpuRasterBufferProvider::Shutdown() {} |
| |
| } // namespace cc |