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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.
136 lines
4.5 KiB
C++
136 lines
4.5 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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#include "compositor_context.h"
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#include "flutter/flow/layers/layer_tree.h"
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#include "third_party/skia/include/gpu/GrDirectContext.h"
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namespace flutter_runner {
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class ScopedFrame final : public flutter::CompositorContext::ScopedFrame {
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public:
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ScopedFrame(flutter::CompositorContext& context,
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const SkMatrix& root_surface_transformation,
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flutter::ExternalViewEmbedder* view_embedder,
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bool instrumentation_enabled,
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SessionConnection& session_connection)
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: flutter::CompositorContext::ScopedFrame(
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context,
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session_connection.vulkan_surface_producer()->gr_context(),
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nullptr,
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view_embedder,
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root_surface_transformation,
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instrumentation_enabled,
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true,
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nullptr),
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session_connection_(session_connection) {}
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private:
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SessionConnection& session_connection_;
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flutter::RasterStatus Raster(flutter::LayerTree& layer_tree,
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bool ignore_raster_cache) override {
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if (!session_connection_.has_metrics()) {
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return flutter::RasterStatus::kSuccess;
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}
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{
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// Preroll the Flutter layer tree. This allows Flutter to perform
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// pre-paint optimizations.
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TRACE_EVENT0("flutter", "Preroll");
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layer_tree.Preroll(*this, ignore_raster_cache);
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}
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{
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// Traverse the Flutter layer tree so that the necessary session ops to
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// represent the frame are enqueued in the underlying session.
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TRACE_EVENT0("flutter", "UpdateScene");
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layer_tree.UpdateScene(session_connection_.scene_update_context(),
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session_connection_.root_node());
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}
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{
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// Flush all pending session ops.
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TRACE_EVENT0("flutter", "SessionPresent");
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session_connection_.Present(this);
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}
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return flutter::RasterStatus::kSuccess;
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}
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FML_DISALLOW_COPY_AND_ASSIGN(ScopedFrame);
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};
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CompositorContext::CompositorContext(
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std::string debug_label,
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fuchsia::ui::views::ViewToken view_token,
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scenic::ViewRefPair view_ref_pair,
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fidl::InterfaceHandle<fuchsia::ui::scenic::Session> session,
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fml::closure session_error_callback,
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zx_handle_t vsync_event_handle)
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: debug_label_(std::move(debug_label)),
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session_connection_(
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debug_label_,
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std::move(view_token),
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std::move(view_ref_pair),
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std::move(session),
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session_error_callback,
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[](auto) {},
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vsync_event_handle) {}
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void CompositorContext::OnSessionMetricsDidChange(
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const fuchsia::ui::gfx::Metrics& metrics) {
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session_connection_.set_metrics(metrics);
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}
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void CompositorContext::OnSessionSizeChangeHint(float width_change_factor,
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float height_change_factor) {
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session_connection_.OnSessionSizeChangeHint(width_change_factor,
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height_change_factor);
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}
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void CompositorContext::OnWireframeEnabled(bool enabled) {
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session_connection_.set_enable_wireframe(enabled);
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}
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void CompositorContext::OnCreateView(int64_t view_id,
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bool hit_testable,
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bool focusable) {
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session_connection_.scene_update_context().CreateView(view_id, hit_testable,
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focusable);
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}
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void CompositorContext::OnDestroyView(int64_t view_id) {
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session_connection_.scene_update_context().DestroyView(view_id);
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}
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CompositorContext::~CompositorContext() {
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OnGrContextDestroyed();
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}
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std::unique_ptr<flutter::CompositorContext::ScopedFrame>
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CompositorContext::AcquireFrame(
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GrDirectContext* gr_context,
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SkCanvas* canvas,
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flutter::ExternalViewEmbedder* view_embedder,
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const SkMatrix& root_surface_transformation,
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bool instrumentation_enabled,
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bool surface_supports_readback,
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fml::RefPtr<fml::RasterThreadMerger> raster_thread_merger) {
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// TODO: The AcquireFrame interface is too broad and must be refactored to get
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// rid of the context and canvas arguments as those seem to be only used for
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// colorspace correctness purposes on the mobile shells.
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return std::make_unique<flutter_runner::ScopedFrame>(
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*this, //
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root_surface_transformation, //
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view_embedder,
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instrumentation_enabled, //
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session_connection_ //
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);
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}
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} // namespace flutter_runner
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