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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 <stdint.h>
#include "base/callback.h"
#include "ui/gfx/overlay_transform.h"
namespace gfx {
class Rect;
class RectF;
}
namespace gpu {
struct SyncToken;
class ContextSupport {
public:
// Runs |callback| when a sync point is reached.
virtual void SignalSyncPoint(uint32_t sync_point,
const base::Closure& callback) = 0;
// Runs |callback| when a sync token is signalled.
virtual void SignalSyncToken(const SyncToken& sync_token,
const base::Closure& callback) = 0;
// Runs |callback| when a query created via glCreateQueryEXT() has cleared
// passed the glEndQueryEXT() point.
virtual void SignalQuery(uint32_t query, const base::Closure& callback) = 0;
// Indicates whether the context should aggressively free allocated resources.
// If set to true, the context will purge all temporary resources when
// flushed.
virtual void SetAggressivelyFreeResources(
bool aggressively_free_resources) = 0;
virtual void Swap() = 0;
virtual void PartialSwapBuffers(const gfx::Rect& sub_buffer) = 0;
virtual void CommitOverlayPlanes() = 0;
// Schedule a texture to be presented as an overlay synchronously with the
// primary surface during the next buffer swap or CommitOverlayPlanes.
// 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;
virtual uint32_t InsertFutureSyncPointCHROMIUM() = 0;
virtual void RetireSyncPointCHROMIUM(uint32_t sync_point) = 0;
// Returns an ID that can be used to globally identify the share group that
// this context's resources belong to.
virtual uint64_t ShareGroupTracingGUID() const = 0;
protected:
ContextSupport() {}
virtual ~ContextSupport() {}
};
}
#endif // GPU_COMMAND_BUFFER_CLIENT_CONTEXT_SUPPORT_H_
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