mirror of
https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
Chinmay Garde
6bab64e6dc
This incorrect assumption led to the introduction of a failure on an external embedder. Also dries up the section that copies the picture to the embedder managed render targets. Fixes https://github.com/flutter/flutter/issues/43906 Fixes https://b.corp.google.com/issues/143529469
79 lines
3.3 KiB
C++
79 lines
3.3 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef FLUTTER_SHELL_PLATFORM_EMBEDDER_EMBEDDER_RENDER_TARGET_H_
|
|
#define FLUTTER_SHELL_PLATFORM_EMBEDDER_EMBEDDER_RENDER_TARGET_H_
|
|
|
|
#include "flutter/fml/closure.h"
|
|
#include "flutter/fml/macros.h"
|
|
#include "flutter/shell/platform/embedder/embedder.h"
|
|
#include "third_party/skia/include/core/SkCanvas.h"
|
|
#include "third_party/skia/include/core/SkSurface.h"
|
|
|
|
namespace flutter {
|
|
|
|
//------------------------------------------------------------------------------
|
|
/// @brief Describes a surface whose backing store is managed by the
|
|
/// embedder. The type of surface depends on the client rendering
|
|
/// API used. The embedder is notified of the collection of this
|
|
/// render target via a callback.
|
|
///
|
|
class EmbedderRenderTarget {
|
|
public:
|
|
//----------------------------------------------------------------------------
|
|
/// @brief Creates a render target whose backing store is managed by the
|
|
/// embedder. The way this render target is exposed to the engine
|
|
/// is via an SkSurface and a callback that is invoked by this
|
|
/// object in its destructor.
|
|
///
|
|
/// @param[in] backing_store The backing store describing this render
|
|
/// target.
|
|
/// @param[in] render_surface The surface for this target.
|
|
/// @param[in] on_release The callback to invoke (eventually forwarded
|
|
/// to the embedder) when the backing store is no
|
|
/// longer required by the engine.
|
|
///
|
|
EmbedderRenderTarget(FlutterBackingStore backing_store,
|
|
sk_sp<SkSurface> render_surface,
|
|
fml::closure on_release);
|
|
|
|
//----------------------------------------------------------------------------
|
|
/// @brief Destroys this instance of the render target and invokes the
|
|
/// callback for the embedder to release its resource associated
|
|
/// with the particular backing store.
|
|
///
|
|
~EmbedderRenderTarget();
|
|
|
|
//----------------------------------------------------------------------------
|
|
/// @brief A render surface the rasterizer can use to draw into the
|
|
/// backing store of this render target.
|
|
///
|
|
/// @return The render surface.
|
|
///
|
|
sk_sp<SkSurface> GetRenderSurface() const;
|
|
|
|
//----------------------------------------------------------------------------
|
|
/// @brief The embedder backing store descriptor. This is the descriptor
|
|
/// that was given to the engine by the embedder. This descriptor
|
|
/// may contain context the embedder can use to associate it
|
|
/// resources with the compositor layers when they are given back
|
|
/// to it in present callback. The engine does not use this in any
|
|
/// way.
|
|
///
|
|
/// @return The backing store.
|
|
///
|
|
const FlutterBackingStore* GetBackingStore() const;
|
|
|
|
private:
|
|
FlutterBackingStore backing_store_;
|
|
sk_sp<SkSurface> render_surface_;
|
|
fml::closure on_release_;
|
|
|
|
FML_DISALLOW_COPY_AND_ASSIGN(EmbedderRenderTarget);
|
|
};
|
|
|
|
} // namespace flutter
|
|
|
|
#endif // FLUTTER_SHELL_PLATFORM_EMBEDDER_EMBEDDER_RENDER_TARGET_H_
|