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// Copyright 2013 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 GPU_COMMAND_BUFFER_CLIENT_CONTEXT_SUPPORT_H_
#define GPU_COMMAND_BUFFER_CLIENT_CONTEXT_SUPPORT_H_
#include "base/callback.h"
#include "ui/gfx/overlay_transform.h"
#include "ui/gfx/rect.h"
namespace gpu {
class ContextSupport {
public:
// Runs |callback| when a sync point is reached.
virtual void SignalSyncPoint(uint32 sync_point,
const base::Closure& callback) = 0;
// Runs |callback| when a query created via glCreateQueryEXT() has cleared
// passed the glEndQueryEXT() point.
virtual void SignalQuery(uint32 query, const base::Closure& callback) = 0;
// For onscreen contexts, indicates that the surface visibility has changed.
// Clients aren't expected to draw to an invisible surface.
virtual void SetSurfaceVisible(bool visible) = 0;
virtual void Swap() = 0;
virtual void PartialSwapBuffers(const gfx::Rect& sub_buffer) = 0;
virtual void SetSwapBuffersCompleteCallback(
const base::Closure& callback) = 0;
// Schedule a texture to be presented as an overlay synchronously with the
// primary surface during the next buffer swap.
// This method is not stateful and needs to be re-scheduled every frame.
virtual void ScheduleOverlayPlane(int plane_z_order,
gfx::OverlayTransform plane_transform,
unsigned overlay_texture_id,
const gfx::Rect& display_bounds,
const gfx::RectF& uv_rect) = 0;
protected:
ContextSupport() {}
virtual ~ContextSupport() {}
};
}
#endif // GPU_COMMAND_BUFFER_CLIENT_CONTEXT_SUPPORT_H_
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