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c57aff1800
This is part of a larger effort to expose the difference between GrDirectContext, which runs on the GPU thread and can directly perform operations like uploading textures, and GrRecordingContext, which can only queue up work to be delivered to the GrDirectContext later.
75 lines
2.4 KiB
C++
75 lines
2.4 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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// FLUTTER_NOLINT
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#include "flutter/shell/gpu/gpu_surface_vulkan.h"
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#include "flutter/fml/logging.h"
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namespace flutter {
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GPUSurfaceVulkan::GPUSurfaceVulkan(
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GPUSurfaceVulkanDelegate* delegate,
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std::unique_ptr<vulkan::VulkanNativeSurface> native_surface,
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bool render_to_surface)
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: window_(delegate->vk(), std::move(native_surface), render_to_surface),
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delegate_(delegate),
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render_to_surface_(render_to_surface),
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weak_factory_(this) {}
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GPUSurfaceVulkan::~GPUSurfaceVulkan() = default;
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bool GPUSurfaceVulkan::IsValid() {
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return window_.IsValid();
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}
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std::unique_ptr<SurfaceFrame> GPUSurfaceVulkan::AcquireFrame(
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const SkISize& size) {
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// TODO(38466): Refactor GPU surface APIs take into account the fact that an
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// external view embedder may want to render to the root surface.
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if (!render_to_surface_) {
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return std::make_unique<SurfaceFrame>(
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nullptr, true, [](const SurfaceFrame& surface_frame, SkCanvas* canvas) {
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return true;
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});
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}
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auto surface = window_.AcquireSurface();
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if (surface == nullptr) {
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return nullptr;
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}
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SurfaceFrame::SubmitCallback callback =
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[weak_this = weak_factory_.GetWeakPtr()](const SurfaceFrame&,
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SkCanvas* canvas) -> bool {
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// Frames are only ever acquired on the raster thread. This is also the
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// thread on which the weak pointer factory is collected (as this instance
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// is owned by the rasterizer). So this use of weak pointers is safe.
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if (canvas == nullptr || !weak_this) {
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return false;
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}
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return weak_this->window_.SwapBuffers();
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};
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return std::make_unique<SurfaceFrame>(std::move(surface), true,
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std::move(callback));
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}
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SkMatrix GPUSurfaceVulkan::GetRootTransformation() const {
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// This backend does not support delegating to the underlying platform to
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// query for root surface transformations. Just return identity.
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SkMatrix matrix;
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matrix.reset();
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return matrix;
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}
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GrDirectContext* GPUSurfaceVulkan::GetContext() {
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return window_.GetSkiaGrContext();
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}
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flutter::ExternalViewEmbedder* GPUSurfaceVulkan::GetExternalViewEmbedder() {
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return delegate_->GetExternalViewEmbedder();
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}
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} // namespace flutter
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