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[fuchsia] Enable raster cache on Fuchsia (flutter/engine#17753)

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The raster cache is critical for good performance. This
enables the cache and provides a GrContext to ScopedFrame
instances so the cache can be efficiently populated.

Small increase in peak GPU memory usage is expected from
this change. Otherwise, no change in behavior expected.

Fixes https://github.com/flutter/flutter/issues/54950

Co-authored-by: David Reveman <reveman@google.com>
This commit is contained in:
David Reveman 2020-04-20 13:29:08 -04:00 committed by GitHub
parent 7ae25c916d
commit 5439fdc086
3 changed files with 16 additions and 9 deletions
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19
engine/src/flutter/shell/platform/fuchsia/flutter/compositor_context.cc
View File

@ -14,14 +14,15 @@ class ScopedFrame final : public flutter::CompositorContext::ScopedFrame {
const SkMatrix& root_surface_transformation,
bool instrumentation_enabled,
SessionConnection& session_connection)
: flutter::CompositorContext::ScopedFrame(context,
nullptr,
nullptr,
nullptr,
root_surface_transformation,
instrumentation_enabled,
true,
nullptr),
: flutter::CompositorContext::ScopedFrame(
context,
session_connection.vulkan_surface_producer()->gr_context(),
nullptr,
nullptr,
root_surface_transformation,
instrumentation_enabled,
true,
nullptr),
session_connection_(session_connection) {}
private:
@ -37,7 +38,7 @@ class ScopedFrame final : public flutter::CompositorContext::ScopedFrame {
// Preroll the Flutter layer tree. This allows Flutter to perform
// pre-paint optimizations.
TRACE_EVENT0("flutter", "Preroll");
layer_tree.Preroll(*this, true /* ignore raster cache */);
layer_tree.Preroll(*this, ignore_raster_cache);
}
{

4
engine/src/flutter/shell/platform/fuchsia/flutter/session_connection.h
View File

@ -68,6 +68,10 @@ class SessionConnection final {
void OnSessionSizeChangeHint(float width_change_factor,
float height_change_factor);
VulkanSurfaceProducer* vulkan_surface_producer() {
return surface_producer_.get();
}
private:
const std::string debug_label_;
scenic::Session session_wrapper_;

2
engine/src/flutter/shell/platform/fuchsia/flutter/vulkan_surface_producer.h
View File

@ -66,6 +66,8 @@ class VulkanSurfaceProducer final
width_change_factor, height_change_factor);
}
GrContext* gr_context() { return context_.get(); }
private:
// VulkanProvider
const vulkan::VulkanProcTable& vk() override { return *vk_.get(); }