flutter_flutter/sky/shell/gpu/rasterizer.h
Adam Barth e5d7e69346 Pass the sky::LayerTree to the GPU thread for drawing
Instead of squashing the layers down into a single SkPicture, we now pass the
tree to the GPU thread, which draws everything separately.
2015-09-03 19:20:32 -07:00

59 lines
1.4 KiB
C++

// Copyright 2015 The Chromium 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 SKY_SHELL_GPU_RASTERIZER_H_
#define SKY_SHELL_GPU_RASTERIZER_H_
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "skia/ext/refptr.h"
#include "sky/shell/gpu_delegate.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/native_widget_types.h"
class SkPicture;
namespace gfx {
class GLContext;
class GLShareGroup;
class GLSurface;
}
namespace sky {
namespace shell {
class GaneshContext;
class GaneshSurface;
class Rasterizer : public GPUDelegate {
public:
explicit Rasterizer();
~Rasterizer() override;
base::WeakPtr<Rasterizer> GetWeakPtr();
void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override;
void OnOutputSurfaceDestroyed() override;
void Draw(scoped_ptr<LayerTree> layer_tree) override;
private:
void EnsureGLContext();
void EnsureGaneshSurface(intptr_t window_fbo, const gfx::Size& size);
scoped_refptr<gfx::GLShareGroup> share_group_;
scoped_refptr<gfx::GLSurface> surface_;
scoped_refptr<gfx::GLContext> context_;
scoped_ptr<GaneshContext> ganesh_context_;
scoped_ptr<GaneshSurface> ganesh_surface_;
base::WeakPtrFactory<Rasterizer> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(Rasterizer);
};
} // namespace shell
} // namespace sky
#endif // SKY_SHELL_GPU_RASTERIZER_H_