mirror of
https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
Josh Gargus
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
// Copyright 2017 The Fuchsia Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#pragma once
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#include <list>
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#include <unordered_map>
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#include "flutter/content_handler/vulkan_surface.h"
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#include "lib/ftl/macros.h"
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namespace flutter_runner {
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class VulkanSurfacePool {
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public:
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static const size_t kMaxSurfacesOfSameSize = 3;
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static const size_t kMaxSurfaceAge = 3;
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VulkanSurfacePool(vulkan::VulkanProcTable& vk,
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sk_sp<GrContext> context,
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sk_sp<GrVkBackendContext> backend_context,
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scenic_lib::Session* mozart_session);
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~VulkanSurfacePool();
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std::unique_ptr<flow::SceneUpdateContext::SurfaceProducerSurface>
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AcquireSurface(const SkISize& size);
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void SubmitSurface(
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std::unique_ptr<flow::SceneUpdateContext::SurfaceProducerSurface>
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surface);
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void AgeAndCollectOldBuffers();
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private:
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using SurfacesSet = std::list<
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std::unique_ptr<flow::SceneUpdateContext::SurfaceProducerSurface>>;
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template <class T>
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static void HashCombine(size_t& seed, T const& v) {
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seed ^= std::hash<T>()(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2);
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}
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struct SkISizeHash {
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std::size_t operator()(const SkISize& key) const {
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size_t seed = 0;
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HashCombine(seed, key.fWidth);
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HashCombine(seed, key.fHeight);
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return seed;
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}
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};
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vulkan::VulkanProcTable& vk_;
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sk_sp<GrContext> context_;
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sk_sp<GrVkBackendContext> backend_context_;
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scenic_lib::Session* mozart_session_;
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std::unordered_map<SkISize, SurfacesSet, SkISizeHash> available_surfaces_;
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std::unordered_map<
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uintptr_t,
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std::unique_ptr<flow::SceneUpdateContext::SurfaceProducerSurface>>
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pending_surfaces_;
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size_t trace_surfaces_created_ = 0;
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size_t trace_surfaces_reused_ = 0;
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std::unique_ptr<flow::SceneUpdateContext::SurfaceProducerSurface>
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GetCachedOrCreateSurface(const SkISize& size);
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std::unique_ptr<VulkanSurface> CreateSurface(const SkISize& size);
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void RecycleSurface(uintptr_t surface_key);
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void TraceStats();
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FTL_DISALLOW_COPY_AND_ASSIGN(VulkanSurfacePool);
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};
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} // namespace flutter_runner
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