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6a47296876
The old way of allocating images meant that one would have to make sure that Scenic and Flutter were using exactly the same pixel formats. This patch removes the old image allocation and replaces it with a sysmem API that uses buffer collections instead. This permits a smooth negotiation of formats between the two systems.
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
// Copyright 2013 The Flutter 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 <unordered_map>
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#include <vector>
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#include "flutter/fml/macros.h"
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#include "vulkan_surface.h"
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namespace flutter_runner {
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class VulkanSurfacePool final {
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public:
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// Only keep 12 surfaces at a time. This value was based on how many
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// surfaces got cached in the old, exact-match-only caching logic.
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static constexpr int kMaxSurfaces = 12;
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// If a surface doesn't get used for 3 or more generations, we discard it.
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static constexpr int kMaxSurfaceAge = 3;
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VulkanSurfacePool(vulkan::VulkanProvider& vulkan_provider,
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sk_sp<GrDirectContext> context,
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scenic::Session* scenic_session);
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~VulkanSurfacePool();
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std::unique_ptr<VulkanSurface> CreateSurface(const SkISize& size);
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std::unique_ptr<VulkanSurface> AcquireSurface(const SkISize& size);
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void SubmitSurface(std::unique_ptr<SurfaceProducerSurface> surface);
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void AgeAndCollectOldBuffers();
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// Shrink all oversized |VulkanSurfaces| in |available_surfaces_| to as
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// small as they can be.
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void ShrinkToFit();
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private:
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vulkan::VulkanProvider& vulkan_provider_;
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sk_sp<GrDirectContext> context_;
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scenic::Session* scenic_session_;
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fuchsia::sysmem::AllocatorSyncPtr sysmem_allocator_;
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std::vector<std::unique_ptr<VulkanSurface>> available_surfaces_;
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std::unordered_map<uintptr_t, std::unique_ptr<VulkanSurface>>
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pending_surfaces_;
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uint32_t buffer_id_ = 1;
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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<VulkanSurface> GetCachedOrCreateSurface(const SkISize& size);
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void RecycleSurface(std::unique_ptr<VulkanSurface> surface);
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void RecyclePendingSurface(uintptr_t surface_key);
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void TraceStats();
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FML_DISALLOW_COPY_AND_ASSIGN(VulkanSurfacePool);
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};
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} // namespace flutter_runner
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