mirror of
https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
Jim Graham
85953615eb
Currently helps primarily on iOS when no BackdropFilter is present by lowering energy usage
76 lines
2.1 KiB
C++
76 lines
2.1 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 SHELL_GPU_GPU_SURFACE_GL_H_
|
|
#define SHELL_GPU_GPU_SURFACE_GL_H_
|
|
|
|
#include <functional>
|
|
#include <memory>
|
|
|
|
#include "flutter/flow/embedded_views.h"
|
|
#include "flutter/fml/macros.h"
|
|
#include "flutter/fml/memory/weak_ptr.h"
|
|
#include "flutter/shell/common/surface.h"
|
|
#include "flutter/shell/gpu/gpu_surface_gl_delegate.h"
|
|
#include "third_party/skia/include/gpu/GrContext.h"
|
|
|
|
namespace flutter {
|
|
|
|
class GPUSurfaceGL : public Surface {
|
|
public:
|
|
GPUSurfaceGL(GPUSurfaceGLDelegate* delegate, bool render_to_surface);
|
|
|
|
// Creates a new GL surface reusing an existing GrContext.
|
|
GPUSurfaceGL(sk_sp<GrContext> gr_context,
|
|
GPUSurfaceGLDelegate* delegate,
|
|
bool render_to_surface);
|
|
|
|
~GPUSurfaceGL() override;
|
|
|
|
// |Surface|
|
|
bool IsValid() override;
|
|
|
|
// |Surface|
|
|
std::unique_ptr<SurfaceFrame> AcquireFrame(const SkISize& size) override;
|
|
|
|
// |Surface|
|
|
SkMatrix GetRootTransformation() const override;
|
|
|
|
// |Surface|
|
|
GrContext* GetContext() override;
|
|
|
|
// |Surface|
|
|
flutter::ExternalViewEmbedder* GetExternalViewEmbedder() override;
|
|
|
|
// |Surface|
|
|
bool MakeRenderContextCurrent() override;
|
|
|
|
private:
|
|
GPUSurfaceGLDelegate* delegate_;
|
|
sk_sp<GrContext> context_;
|
|
sk_sp<SkSurface> onscreen_surface_;
|
|
bool context_owner_;
|
|
// TODO(38466): Refactor GPU surface APIs take into account the fact that an
|
|
// external view embedder may want to render to the root surface. This is a
|
|
// hack to make avoid allocating resources for the root surface when an
|
|
// external view embedder is present.
|
|
const bool render_to_surface_;
|
|
bool valid_ = false;
|
|
fml::WeakPtrFactory<GPUSurfaceGL> weak_factory_;
|
|
|
|
bool CreateOrUpdateSurfaces(const SkISize& size);
|
|
|
|
sk_sp<SkSurface> AcquireRenderSurface(
|
|
const SkISize& untransformed_size,
|
|
const SkMatrix& root_surface_transformation);
|
|
|
|
bool PresentSurface(SkCanvas* canvas);
|
|
|
|
FML_DISALLOW_COPY_AND_ASSIGN(GPUSurfaceGL);
|
|
};
|
|
|
|
} // namespace flutter
|
|
|
|
#endif // SHELL_GPU_GPU_SURFACE_GL_H_
|