| // 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/metrics/histogram_macros.h" |
| #include "base/trace_event/trace_event.h" |
| #include "cc/base/histograms.h" |
| #include "cc/paint/display_item_list.h" |
| #include "cc/paint/paint_canvas.h" |
| #include "cc/paint/paint_recorder.h" |
| #include "cc/raster/raster_source.h" |
| #include "cc/raster/scoped_gpu_raster.h" |
| #include "components/viz/client/client_resource_provider.h" |
| #include "components/viz/common/gpu/context_provider.h" |
| #include "components/viz/common/gpu/raster_context_provider.h" |
| #include "components/viz/common/gpu/texture_allocation.h" |
| #include "components/viz/common/resources/resource_format_utils.h" |
| #include "gpu/GLES2/gl2extchromium.h" |
| #include "gpu/command_buffer/client/context_support.h" |
| #include "gpu/command_buffer/client/gles2_interface.h" |
| #include "gpu/command_buffer/client/raster_interface.h" |
| #include "gpu/command_buffer/common/gpu_memory_buffer_support.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" |
| #include "ui/gfx/geometry/axis_transform2d.h" |
| #include "ui/gl/trace_util.h" |
| |
| namespace cc { |
| namespace { |
| |
| class ScopedSkSurfaceForUnpremultiplyAndDither { |
| public: |
| ScopedSkSurfaceForUnpremultiplyAndDither( |
| viz::RasterContextProvider* context_provider, |
| const gfx::Rect& playback_rect, |
| const gfx::Rect& raster_full_rect, |
| const gfx::Size& max_tile_size, |
| GLuint texture_id, |
| const gfx::Size& texture_size, |
| bool can_use_lcd_text, |
| int msaa_sample_count) |
| : context_provider_(context_provider), |
| texture_id_(texture_id), |
| offset_(playback_rect.OffsetFromOrigin() - |
| raster_full_rect.OffsetFromOrigin()), |
| size_(playback_rect.size()) { |
| // Determine the |intermediate_size| to use for our 32-bit texture. If we |
| // know the max tile size, use that. This prevents GPU cache explosion due |
| // to using lots of different 32-bit texture sizes. Otherwise just use the |
| // exact size of the target texture. |
| gfx::Size intermediate_size; |
| if (!max_tile_size.IsEmpty()) { |
| DCHECK_GE(max_tile_size.width(), texture_size.width()); |
| DCHECK_GE(max_tile_size.height(), texture_size.height()); |
| intermediate_size = max_tile_size; |
| } else { |
| intermediate_size = texture_size; |
| } |
| |
| // Allocate a 32-bit surface for raster. We will copy from that into our |
| // actual surface in destruction. |
| SkImageInfo n32Info = SkImageInfo::MakeN32Premul( |
| intermediate_size.width(), intermediate_size.height()); |
| SkSurfaceProps surface_props = |
| viz::ClientResourceProvider::ScopedSkSurface::ComputeSurfaceProps( |
| can_use_lcd_text); |
| surface_ = SkSurface::MakeRenderTarget( |
| context_provider->GrContext(), SkBudgeted::kNo, n32Info, |
| msaa_sample_count, kTopLeft_GrSurfaceOrigin, &surface_props); |
| } |
| |
| ~ScopedSkSurfaceForUnpremultiplyAndDither() { |
| // In lost-context cases, |surface_| may be null and there's nothing |
| // meaningful to do here. |
| if (!surface_) |
| return; |
| |
| GrBackendTexture backend_texture = |
| surface_->getBackendTexture(SkSurface::kFlushRead_BackendHandleAccess); |
| if (!backend_texture.isValid()) { |
| return; |
| } |
| GrGLTextureInfo info; |
| if (!backend_texture.getGLTextureInfo(&info)) { |
| return; |
| } |
| context_provider_->ContextGL()->UnpremultiplyAndDitherCopyCHROMIUM( |
| info.fID, texture_id_, offset_.x(), offset_.y(), size_.width(), |
| size_.height()); |
| } |
| |
| SkSurface* surface() { return surface_.get(); } |
| |
| private: |
| viz::RasterContextProvider* context_provider_; |
| GLuint texture_id_; |
| gfx::Vector2d offset_; |
| gfx::Size size_; |
| sk_sp<SkSurface> surface_; |
| }; |
| |
| static void RasterizeSourceOOP( |
| const RasterSource* raster_source, |
| bool resource_has_previous_content, |
| const gpu::Mailbox& mailbox, |
| GLenum texture_target, |
| bool texture_is_overlay_candidate, |
| bool texture_storage_allocated, |
| const gfx::Size& resource_size, |
| viz::ResourceFormat resource_format, |
| const gfx::ColorSpace& color_space, |
| const gfx::Rect& raster_full_rect, |
| const gfx::Rect& playback_rect, |
| const gfx::AxisTransform2d& transform, |
| const RasterSource::PlaybackSettings& playback_settings, |
| viz::RasterContextProvider* context_provider, |
| int msaa_sample_count) { |
| gpu::raster::RasterInterface* ri = context_provider->RasterInterface(); |
| GLuint texture_id = ri->CreateAndConsumeTexture( |
| texture_is_overlay_candidate, gfx::BufferUsage::SCANOUT, resource_format, |
| mailbox.name); |
| if (!texture_storage_allocated) { |
| viz::TextureAllocation alloc = {texture_id, texture_target, |
| texture_is_overlay_candidate}; |
| viz::TextureAllocation::AllocateStorage( |
| ri, context_provider->ContextCapabilities(), resource_format, |
| resource_size, alloc, color_space); |
| } |
| |
| // TODO(enne): Use the |texture_target|? GpuMemoryBuffer backed textures don't |
| // use GL_TEXTURE_2D. |
| ri->BeginRasterCHROMIUM(texture_id, raster_source->background_color(), |
| msaa_sample_count, playback_settings.use_lcd_text, |
| viz::ResourceFormatToClosestSkColorType( |
| /*gpu_compositing=*/true, resource_format), |
| playback_settings.raster_color_space); |
| float recording_to_raster_scale = |
| transform.scale() / raster_source->recording_scale_factor(); |
| gfx::Size content_size = raster_source->GetContentSize(transform.scale()); |
| // TODO(enne): could skip the clear on new textures, as the service side has |
| // to do that anyway. resource_has_previous_content implies that the texture |
| // is not new, but the reverse does not hold, so more plumbing is needed. |
| ri->RasterCHROMIUM(raster_source->GetDisplayItemList().get(), |
| playback_settings.image_provider, content_size, |
| raster_full_rect, playback_rect, transform.translation(), |
| recording_to_raster_scale, |
| raster_source->requires_clear()); |
| ri->EndRasterCHROMIUM(); |
| |
| // TODO(ericrk): Handle unpremultiply+dither for 4444 cases. |
| // https://crbug.com/789153 |
| |
| ri->DeleteTextures(1, &texture_id); |
| } |
| |
| // The following class is needed to correctly reset GL state when rendering to |
| // SkCanvases with a GrContext on a RasterInterface enabled context. |
| class ScopedGrContextAccess { |
| public: |
| explicit ScopedGrContextAccess(viz::RasterContextProvider* context_provider) |
| : context_provider_(context_provider) { |
| gpu::raster::RasterInterface* ri = context_provider_->RasterInterface(); |
| ri->BeginGpuRaster(); |
| } |
| ~ScopedGrContextAccess() { |
| gpu::raster::RasterInterface* ri = context_provider_->RasterInterface(); |
| ri->EndGpuRaster(); |
| } |
| |
| private: |
| viz::RasterContextProvider* context_provider_; |
| }; |
| |
| static void RasterizeSource( |
| const RasterSource* raster_source, |
| bool resource_has_previous_content, |
| const gpu::Mailbox& mailbox, |
| GLenum texture_target, |
| bool texture_is_overlay_candidate, |
| bool texture_storage_allocated, |
| const gfx::Size& resource_size, |
| viz::ResourceFormat resource_format, |
| const gfx::ColorSpace& color_space, |
| const gfx::Rect& raster_full_rect, |
| const gfx::Rect& playback_rect, |
| const gfx::AxisTransform2d& transform, |
| const RasterSource::PlaybackSettings& playback_settings, |
| viz::RasterContextProvider* context_provider, |
| int msaa_sample_count, |
| bool unpremultiply_and_dither, |
| const gfx::Size& max_tile_size) { |
| gpu::raster::RasterInterface* ri = context_provider->RasterInterface(); |
| GLuint texture_id = ri->CreateAndConsumeTexture( |
| texture_is_overlay_candidate, gfx::BufferUsage::SCANOUT, resource_format, |
| mailbox.name); |
| if (!texture_storage_allocated) { |
| viz::TextureAllocation alloc = {texture_id, texture_target, |
| texture_is_overlay_candidate}; |
| viz::TextureAllocation::AllocateStorage( |
| ri, context_provider->ContextCapabilities(), resource_format, |
| resource_size, alloc, color_space); |
| } |
| |
| { |
| ScopedGrContextAccess gr_context_access(context_provider); |
| base::Optional<viz::ClientResourceProvider::ScopedSkSurface> scoped_surface; |
| base::Optional<ScopedSkSurfaceForUnpremultiplyAndDither> |
| scoped_dither_surface; |
| SkSurface* surface; |
| if (!unpremultiply_and_dither) { |
| scoped_surface.emplace(context_provider->GrContext(), texture_id, |
| texture_target, resource_size, resource_format, |
| playback_settings.use_lcd_text, msaa_sample_count); |
| surface = scoped_surface->surface(); |
| } else { |
| scoped_dither_surface.emplace( |
| context_provider, playback_rect, raster_full_rect, max_tile_size, |
| texture_id, resource_size, playback_settings.use_lcd_text, |
| msaa_sample_count); |
| surface = scoped_dither_surface->surface(); |
| } |
| |
| // Allocating an SkSurface will fail after a lost context. Pretend we |
| // rasterized, as the contents of the resource don't matter anymore. |
| if (!surface) { |
| DLOG(ERROR) << "Failed to allocate raster surface"; |
| return; |
| } |
| |
| SkCanvas* canvas = surface->getCanvas(); |
| |
| // As an optimization, inform Skia to discard when not doing partial raster. |
| if (raster_full_rect == playback_rect) |
| canvas->discard(); |
| |
| gfx::Size content_size = raster_source->GetContentSize(transform.scale()); |
| raster_source->PlaybackToCanvas(canvas, color_space, content_size, |
| raster_full_rect, playback_rect, transform, |
| playback_settings); |
| } |
| |
| ri->DeleteTextures(1, &texture_id); |
| } |
| |
| } // namespace |
| |
| // Subclass for InUsePoolResource that holds ownership of a gpu-rastered backing |
| // and does cleanup of the backing when destroyed. |
| class GpuRasterBufferProvider::GpuRasterBacking |
| : public ResourcePool::GpuBacking { |
| public: |
| ~GpuRasterBacking() override { |
| gpu::gles2::GLES2Interface* gl = compositor_context_provider->ContextGL(); |
| if (returned_sync_token.HasData()) |
| gl->WaitSyncTokenCHROMIUM(returned_sync_token.GetConstData()); |
| if (mailbox_sync_token.HasData()) |
| gl->WaitSyncTokenCHROMIUM(mailbox_sync_token.GetConstData()); |
| if (texture_id) |
| gl->DeleteTextures(1, &texture_id); |
| } |
| |
| base::trace_event::MemoryAllocatorDumpGuid MemoryDumpGuid( |
| uint64_t tracing_process_id) override { |
| if (!storage_allocated) |
| return {}; |
| return gl::GetGLTextureClientGUIDForTracing( |
| compositor_context_provider->ContextSupport()->ShareGroupTracingGUID(), |
| texture_id); |
| } |
| base::UnguessableToken SharedMemoryGuid() override { return {}; } |
| |
| // The ContextProvider used to clean up the texture id. |
| viz::ContextProvider* compositor_context_provider = nullptr; |
| // The texture backing of the resource. |
| GLuint texture_id = 0; |
| // The allocation of storage for the |texture_id| is deferred, and this tracks |
| // if it has been done. |
| bool storage_allocated = false; |
| }; |
| |
| GpuRasterBufferProvider::RasterBufferImpl::RasterBufferImpl( |
| GpuRasterBufferProvider* client, |
| const ResourcePool::InUsePoolResource& in_use_resource, |
| GpuRasterBacking* backing, |
| bool resource_has_previous_content) |
| : client_(client), |
| backing_(backing), |
| resource_size_(in_use_resource.size()), |
| resource_format_(in_use_resource.format()), |
| color_space_(in_use_resource.color_space()), |
| resource_has_previous_content_(resource_has_previous_content), |
| before_raster_sync_token_(backing->returned_sync_token), |
| mailbox_(backing->mailbox), |
| texture_target_(backing->texture_target), |
| texture_is_overlay_candidate_(backing->overlay_candidate), |
| texture_storage_allocated_(backing->storage_allocated) {} |
| |
| GpuRasterBufferProvider::RasterBufferImpl::~RasterBufferImpl() { |
| // This SyncToken was created on the worker context after rastering the |
| // texture content. |
| backing_->mailbox_sync_token = after_raster_sync_token_; |
| if (after_raster_sync_token_.HasData()) { |
| // The returned SyncToken was waited on in Playback. We know Playback |
| // happened if the |after_raster_sync_token_| was set. |
| backing_->returned_sync_token = gpu::SyncToken(); |
| } |
| backing_->storage_allocated = texture_storage_allocated_; |
| } |
| |
| void GpuRasterBufferProvider::RasterBufferImpl::Playback( |
| const RasterSource* raster_source, |
| const gfx::Rect& raster_full_rect, |
| const gfx::Rect& raster_dirty_rect, |
| uint64_t new_content_id, |
| const gfx::AxisTransform2d& transform, |
| const RasterSource::PlaybackSettings& playback_settings) { |
| TRACE_EVENT0("cc", "GpuRasterBuffer::Playback"); |
| // The |before_raster_sync_token_| passed in here was created on the |
| // compositor thread, or given back with the texture for reuse. This call |
| // returns another SyncToken generated on the worker thread to synchronize |
| // with after the raster is complete. |
| after_raster_sync_token_ = client_->PlaybackOnWorkerThread( |
| mailbox_, texture_target_, texture_is_overlay_candidate_, |
| texture_storage_allocated_, before_raster_sync_token_, resource_size_, |
| resource_format_, color_space_, resource_has_previous_content_, |
| raster_source, raster_full_rect, raster_dirty_rect, new_content_id, |
| transform, playback_settings); |
| texture_storage_allocated_ = true; |
| } |
| |
| GpuRasterBufferProvider::GpuRasterBufferProvider( |
| viz::ContextProvider* compositor_context_provider, |
| viz::RasterContextProvider* worker_context_provider, |
| bool use_gpu_memory_buffer_resources, |
| int gpu_rasterization_msaa_sample_count, |
| viz::ResourceFormat tile_format, |
| const gfx::Size& max_tile_size, |
| bool unpremultiply_and_dither_low_bit_depth_tiles, |
| bool enable_oop_rasterization) |
| : compositor_context_provider_(compositor_context_provider), |
| worker_context_provider_(worker_context_provider), |
| use_gpu_memory_buffer_resources_(use_gpu_memory_buffer_resources), |
| msaa_sample_count_(gpu_rasterization_msaa_sample_count), |
| tile_format_(tile_format), |
| max_tile_size_(max_tile_size), |
| unpremultiply_and_dither_low_bit_depth_tiles_( |
| unpremultiply_and_dither_low_bit_depth_tiles), |
| enable_oop_rasterization_(enable_oop_rasterization) { |
| DCHECK(compositor_context_provider); |
| DCHECK(worker_context_provider); |
| } |
| |
| GpuRasterBufferProvider::~GpuRasterBufferProvider() { |
| } |
| |
| std::unique_ptr<RasterBuffer> GpuRasterBufferProvider::AcquireBufferForRaster( |
| const ResourcePool::InUsePoolResource& resource, |
| uint64_t resource_content_id, |
| uint64_t previous_content_id) { |
| if (!resource.gpu_backing()) { |
| auto backing = std::make_unique<GpuRasterBacking>(); |
| backing->compositor_context_provider = compositor_context_provider_; |
| |
| gpu::gles2::GLES2Interface* gl = compositor_context_provider_->ContextGL(); |
| const auto& caps = compositor_context_provider_->ContextCapabilities(); |
| |
| viz::TextureAllocation alloc = viz::TextureAllocation::MakeTextureId( |
| gl, caps, resource.format(), use_gpu_memory_buffer_resources_, |
| /*for_framebuffer_attachment=*/true); |
| backing->texture_id = alloc.texture_id; |
| backing->texture_target = alloc.texture_target; |
| backing->overlay_candidate = alloc.overlay_candidate; |
| gl->ProduceTextureDirectCHROMIUM(backing->texture_id, |
| backing->mailbox.name); |
| // Save a sync token in the backing so that we always wait on it even if |
| // this task is cancelled between being scheduled and running. |
| backing->returned_sync_token = |
| viz::ClientResourceProvider::GenerateSyncTokenHelper(gl); |
| |
| resource.set_gpu_backing(std::move(backing)); |
| } |
| GpuRasterBacking* backing = |
| static_cast<GpuRasterBacking*>(resource.gpu_backing()); |
| bool resource_has_previous_content = |
| resource_content_id && resource_content_id == previous_content_id; |
| return std::make_unique<RasterBufferImpl>(this, resource, backing, |
| resource_has_previous_content); |
| } |
| |
| void GpuRasterBufferProvider::Flush() { |
| compositor_context_provider_->ContextSupport()->FlushPendingWork(); |
| } |
| |
| viz::ResourceFormat GpuRasterBufferProvider::GetResourceFormat() const { |
| return tile_format_; |
| } |
| |
| bool GpuRasterBufferProvider::IsResourceSwizzleRequired() const { |
| // This doesn't require a swizzle because we rasterize to the correct format. |
| return false; |
| } |
| |
| bool GpuRasterBufferProvider::IsResourcePremultiplied() const { |
| return !ShouldUnpremultiplyAndDitherResource(GetResourceFormat()); |
| } |
| |
| bool GpuRasterBufferProvider::CanPartialRasterIntoProvidedResource() const { |
| // Partial raster doesn't support MSAA, as the MSAA resolve is unaware of clip |
| // rects. |
| // TODO(crbug.com/629683): See if we can work around this limitation. |
| return msaa_sample_count_ == 0; |
| } |
| |
| bool GpuRasterBufferProvider::IsResourceReadyToDraw( |
| const ResourcePool::InUsePoolResource& resource) const { |
| const gpu::SyncToken& sync_token = resource.gpu_backing()->mailbox_sync_token; |
| // This SyncToken() should have been set by calling OrderingBarrier() before |
| // calling this. |
| DCHECK(sync_token.HasData()); |
| |
| // IsSyncTokenSignaled is thread-safe, no need for worker context lock. |
| return worker_context_provider_->ContextSupport()->IsSyncTokenSignaled( |
| sync_token); |
| } |
| |
| uint64_t GpuRasterBufferProvider::SetReadyToDrawCallback( |
| const std::vector<const ResourcePool::InUsePoolResource*>& resources, |
| const base::Closure& callback, |
| uint64_t pending_callback_id) const { |
| gpu::SyncToken latest_sync_token; |
| for (const auto* in_use : resources) { |
| const gpu::SyncToken& sync_token = |
| in_use->gpu_backing()->mailbox_sync_token; |
| if (sync_token.release_count() > latest_sync_token.release_count()) |
| latest_sync_token = sync_token; |
| } |
| uint64_t callback_id = latest_sync_token.release_count(); |
| DCHECK_NE(callback_id, 0u); |
| |
| // If the callback is different from the one the caller is already waiting on, |
| // pass the callback through to SignalSyncToken. Otherwise the request is |
| // redundant. |
| if (callback_id != pending_callback_id) { |
| // Use the compositor context because we want this callback on the |
| // compositor thread. |
| compositor_context_provider_->ContextSupport()->SignalSyncToken( |
| latest_sync_token, callback); |
| } |
| |
| return callback_id; |
| } |
| |
| void GpuRasterBufferProvider::Shutdown() { |
| } |
| |
| gpu::SyncToken GpuRasterBufferProvider::PlaybackOnWorkerThread( |
| const gpu::Mailbox& mailbox, |
| GLenum texture_target, |
| bool texture_is_overlay_candidate, |
| bool texture_storage_allocated, |
| const gpu::SyncToken& sync_token, |
| const gfx::Size& resource_size, |
| viz::ResourceFormat resource_format, |
| const gfx::ColorSpace& color_space, |
| bool resource_has_previous_content, |
| const RasterSource* raster_source, |
| const gfx::Rect& raster_full_rect, |
| const gfx::Rect& raster_dirty_rect, |
| uint64_t new_content_id, |
| const gfx::AxisTransform2d& transform, |
| const RasterSource::PlaybackSettings& playback_settings) { |
| viz::RasterContextProvider::ScopedRasterContextLock scoped_context( |
| worker_context_provider_); |
| gpu::raster::RasterInterface* ri = scoped_context.RasterInterface(); |
| DCHECK(ri); |
| |
| // Wait on the SyncToken that was created on the compositor thread after |
| // making the mailbox. This ensures that the mailbox we consume here is valid |
| // by the time the consume command executes. |
| ri->WaitSyncTokenCHROMIUM(sync_token.GetConstData()); |
| |
| 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?"; |
| |
| // Log a histogram of the percentage of pixels that were saved due to |
| // partial raster. |
| const char* client_name = GetClientNameForMetrics(); |
| float full_rect_size = raster_full_rect.size().GetArea(); |
| if (full_rect_size > 0 && client_name) { |
| float fraction_partial_rastered = |
| static_cast<float>(playback_rect.size().GetArea()) / full_rect_size; |
| float fraction_saved = 1.0f - fraction_partial_rastered; |
| UMA_HISTOGRAM_PERCENTAGE( |
| base::StringPrintf("Renderer4.%s.PartialRasterPercentageSaved.Gpu", |
| client_name), |
| 100.0f * fraction_saved); |
| } |
| |
| if (enable_oop_rasterization_) { |
| RasterizeSourceOOP(raster_source, resource_has_previous_content, mailbox, |
| texture_target, texture_is_overlay_candidate, |
| texture_storage_allocated, resource_size, |
| resource_format, color_space, raster_full_rect, |
| playback_rect, transform, playback_settings, |
| worker_context_provider_, msaa_sample_count_); |
| } else { |
| RasterizeSource( |
| raster_source, resource_has_previous_content, mailbox, texture_target, |
| texture_is_overlay_candidate, texture_storage_allocated, resource_size, |
| resource_format, color_space, raster_full_rect, playback_rect, |
| transform, playback_settings, worker_context_provider_, |
| msaa_sample_count_, |
| ShouldUnpremultiplyAndDitherResource(resource_format), max_tile_size_); |
| } |
| |
| // Generate sync token for cross context synchronization. |
| return viz::ClientResourceProvider::GenerateSyncTokenHelper(ri); |
| } |
| |
| bool GpuRasterBufferProvider::ShouldUnpremultiplyAndDitherResource( |
| viz::ResourceFormat format) const { |
| switch (format) { |
| case viz::RGBA_4444: |
| return unpremultiply_and_dither_low_bit_depth_tiles_; |
| default: |
| return false; |
| } |
| } |
| |
| } // namespace cc |