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95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_H_
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#define GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_H_
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#include <stdint.h>
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#include <vector>
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#include "base/callback.h"
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#include "base/macros.h"
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#include "gpu/command_buffer/common/capabilities.h"
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#include "gpu/command_buffer/common/mailbox.h"
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#include "gpu/gpu_export.h"
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extern "C" typedef struct _ClientBuffer* ClientBuffer;
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namespace base {
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class Lock;
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}
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namespace gfx {
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class GpuMemoryBuffer;
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}
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namespace gpu {
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// Common interface for GpuControl implementations.
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class GPU_EXPORT GpuControl {
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public:
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GpuControl() {}
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virtual ~GpuControl() {}
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virtual Capabilities GetCapabilities() = 0;
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// Create an image for a client buffer with the given dimensions and
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// format. Returns its ID or -1 on error.
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virtual int32_t CreateImage(ClientBuffer buffer,
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size_t width,
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size_t height,
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unsigned internalformat) = 0;
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// Destroy an image. The ID must be positive.
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virtual void DestroyImage(int32_t id) = 0;
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// Create a gpu memory buffer backed image with the given dimensions and
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// format for |usage|. Returns its ID or -1 on error.
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virtual int32_t CreateGpuMemoryBufferImage(size_t width,
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size_t height,
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unsigned internalformat,
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unsigned usage) = 0;
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// Inserts a sync point, returning its ID. Sync point IDs are global and can
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// be used for cross-context synchronization.
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virtual uint32_t InsertSyncPoint() = 0;
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// Inserts a future sync point, returning its ID. Sync point IDs are global
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// and can be used for cross-context synchronization. The sync point won't be
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// retired immediately.
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virtual uint32_t InsertFutureSyncPoint() = 0;
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// Retires a future sync point. This will signal contexts that are waiting
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// on it to start executing.
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virtual void RetireSyncPoint(uint32_t sync_point) = 0;
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// Runs |callback| when a sync point is reached.
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virtual void SignalSyncPoint(uint32_t sync_point,
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const base::Closure& callback) = 0;
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// Runs |callback| when a query created via glCreateQueryEXT() has cleared
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// passed the glEndQueryEXT() point.
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virtual void SignalQuery(uint32_t query, const base::Closure& callback) = 0;
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virtual void SetSurfaceVisible(bool visible) = 0;
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// Attaches an external stream to the texture given by |texture_id| and
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// returns a stream identifier.
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virtual uint32_t CreateStreamTexture(uint32_t texture_id) = 0;
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// Sets a lock this will be held on every callback from the GPU
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// implementation. This lock must be set and must be held on every call into
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// the GPU implementation if it is to be used from multiple threads. This
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// may not be supported with all implementations.
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virtual void SetLock(base::Lock*) = 0;
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private:
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DISALLOW_COPY_AND_ASSIGN(GpuControl);
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};
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} // namespace gpu
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#endif // GPU_COMMAND_BUFFER_CLIENT_GPU_CONTROL_H_
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