| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #pragma once |
| |
| #include <fuchsia/sysmem/cpp/fidl.h> |
| #include <fuchsia/ui/composition/cpp/fidl.h> |
| #include <lib/ui/scenic/cpp/resources.h> |
| #include <lib/ui/scenic/cpp/session.h> |
| |
| #include <unordered_map> |
| |
| #include "flutter/fml/macros.h" |
| |
| #include "software_surface.h" |
| |
| namespace flutter_runner { |
| |
| class SoftwareSurfaceProducer final : public SurfaceProducer { |
| public: |
| // Only keep 12 surfaces at a time. |
| static constexpr int kMaxSurfaces = 12; |
| // If a surface doesn't get used for 3 or more generations, we discard it. |
| static constexpr int kMaxSurfaceAge = 3; |
| |
| explicit SoftwareSurfaceProducer(scenic::Session* scenic_session); |
| ~SoftwareSurfaceProducer() override; |
| |
| bool IsValid() const { return valid_; } |
| |
| // |SurfaceProducer| |
| GrDirectContext* gr_context() const override { return nullptr; } |
| |
| // |SurfaceProducer| |
| std::unique_ptr<SurfaceProducerSurface> ProduceOffscreenSurface( |
| const SkISize& size) override; |
| |
| // |SurfaceProducer| |
| std::unique_ptr<SurfaceProducerSurface> ProduceSurface( |
| const SkISize& size) override; |
| |
| // |SurfaceProducer| |
| void SubmitSurfaces( |
| std::vector<std::unique_ptr<SurfaceProducerSurface>> surfaces) override; |
| |
| private: |
| void SubmitSurface(std::unique_ptr<SurfaceProducerSurface> surface); |
| std::unique_ptr<SoftwareSurface> CreateSurface(const SkISize& size); |
| void RecycleSurface(std::unique_ptr<SoftwareSurface> surface); |
| |
| void RecyclePendingSurface(uintptr_t surface_key); |
| |
| void AgeAndCollectOldBuffers(); |
| |
| void TraceStats(); |
| |
| scenic::Session* scenic_session_; // Legacy gfx API endpoint. |
| fuchsia::sysmem::AllocatorSyncPtr sysmem_allocator_; |
| fuchsia::ui::composition::AllocatorPtr flatland_allocator_; |
| |
| // These surfaces are available for re-use. |
| std::vector<std::unique_ptr<SoftwareSurface>> available_surfaces_; |
| // These surfaces have been written to, but scenic is not finished reading |
| // from them yet. |
| std::unordered_map<uintptr_t, std::unique_ptr<SoftwareSurface>> |
| pending_surfaces_; |
| |
| size_t trace_surfaces_created_ = 0; |
| size_t trace_surfaces_reused_ = 0; |
| |
| bool valid_ = false; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(SoftwareSurfaceProducer); |
| }; |
| |
| } // namespace flutter_runner |