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Back Vulkan Rasterizer with Mozart View (flutter#3568)
This version does not recycle buffers. It is meant only as an initial solution, and the proper buffer recycling logic has been broken out into a separate change
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| // Copyright 2017 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. | ||
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| #include "flutter/content_handler/vulkan_native_rasterizer.h" | ||
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| #include <utility> | ||
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| #include "flutter/vulkan/vulkan_native_surface_magma.h" | ||
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| namespace flutter_runner { | ||
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| VulkanNativeRasterizer::VulkanNativeRasterizer() | ||
| : compositor_context_(nullptr) { | ||
| auto proc_table = ftl::MakeRefCounted<vulkan::VulkanProcTable>(); | ||
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| if (!proc_table->HasAcquiredMandatoryProcAddresses()) { | ||
| return; | ||
| } | ||
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| auto native_surface = std::make_unique<vulkan::VulkanNativeSurfaceMagma>(); | ||
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| if (!native_surface->IsValid()) { | ||
| return; | ||
| } | ||
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| auto window = std::make_unique<vulkan::VulkanWindow>( | ||
| proc_table, std::move(native_surface)); | ||
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| if (!window->IsValid()) { | ||
| return; | ||
| } | ||
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| window_ = std::move(window); | ||
| } | ||
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| VulkanNativeRasterizer::~VulkanNativeRasterizer() = default; | ||
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| bool VulkanNativeRasterizer::IsValid() const { | ||
| return window_ == nullptr ? false : window_->IsValid(); | ||
| } | ||
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| void VulkanNativeRasterizer::SetScene( | ||
| fidl::InterfaceHandle<mozart::Scene> scene) { | ||
| // TODO: Composition is currently unsupported using the Vulkan backend. | ||
| } | ||
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| void VulkanNativeRasterizer::Draw(std::unique_ptr<flow::LayerTree> layer_tree, | ||
| ftl::Closure callback) { | ||
| Draw(std::move(layer_tree)); | ||
| callback(); | ||
| } | ||
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| bool VulkanNativeRasterizer::Draw(std::unique_ptr<flow::LayerTree> layer_tree) { | ||
| if (layer_tree == nullptr) { | ||
| FTL_DLOG(INFO) << "Layer tree was not valid."; | ||
| return false; | ||
| } | ||
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| if (!window_->IsValid()) { | ||
| FTL_DLOG(INFO) << "Vulkan window was not valid."; | ||
| return false; | ||
| } | ||
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| auto surface = window_->AcquireSurface(); | ||
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| if (!surface && surface->getCanvas() != nullptr) { | ||
| FTL_DLOG(INFO) << "Could not acquire a vulkan surface."; | ||
| return false; | ||
| } | ||
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| { | ||
| auto compositor_frame = compositor_context_.AcquireFrame( | ||
| window_->GetSkiaGrContext(), // GrContext* | ||
| surface->getCanvas(), // SkCanvas | ||
| true // instrumentation | ||
| ); | ||
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| layer_tree->Raster(compositor_frame); | ||
| } | ||
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| if (!window_->SwapBuffers()) { | ||
| FTL_DLOG(INFO) << "Could not swap buffers successfully."; | ||
| return false; | ||
| } | ||
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| return true; | ||
| } | ||
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| } // namespace flutter_runner |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| // Copyright 2017 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. | ||
|
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| #ifndef FLUTTER_CONTENT_HANDLER_VULKAN_RASTERIZER_H_ | ||
| #define FLUTTER_CONTENT_HANDLER_VULKAN_RASTERIZER_H_ | ||
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| #include <memory> | ||
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| #include "flutter/content_handler/rasterizer.h" | ||
| #include "flutter/flow/compositor_context.h" | ||
| #include "flutter/vulkan/vulkan_window.h" | ||
| #include "lib/ftl/macros.h" | ||
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| namespace flutter_runner { | ||
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| class VulkanNativeRasterizer : public Rasterizer { | ||
| public: | ||
| VulkanNativeRasterizer(); | ||
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| ~VulkanNativeRasterizer() override; | ||
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| bool IsValid() const; | ||
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| void SetScene(fidl::InterfaceHandle<mozart::Scene> scene) override; | ||
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| void Draw(std::unique_ptr<flow::LayerTree> layer_tree, | ||
| ftl::Closure callback) override; | ||
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| private: | ||
| std::unique_ptr<vulkan::VulkanWindow> window_; | ||
| flow::CompositorContext compositor_context_; | ||
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| bool Draw(std::unique_ptr<flow::LayerTree> layer_tree); | ||
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| FTL_DISALLOW_COPY_AND_ASSIGN(VulkanNativeRasterizer); | ||
| }; | ||
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| } // namespace flutter_runner | ||
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| #endif // FLUTTER_CONTENT_HANDLER_VULKAN_RASTERIZER_H_ |
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