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/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Steamboat Springs, CO.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*
**************************************************************************/
#ifndef BUFMGR_H
#define BUFMGR_H
#include "intel_context.h"
/* Note that this is destined to be external to Mesa, so don't use GL
* types like GLuint, etc.
*/
/* The buffer manager context. Opaque.
*/
struct bufmgr;
struct bufmgr *bm_intel_Attach(struct intel_context *intel);
#define BM_BATCHBUFFER 0x10000000 /* for map - pointer will be accessed
* without dri lock */
/* Stick closely to ARB_vbo semantics - they're well defined and
* understood, and drivers can just pass the calls through without too
* much thunking.
*/
void bmGenBuffers(struct bufmgr *, unsigned n, unsigned *buffers,
unsigned flags);
void bmDeleteBuffers(struct bufmgr *, unsigned n, unsigned *buffers);
/* The driver has more intimate knowledge of the hardare than a GL
* client would, so flags here is more proscriptive than the usage
* values in the ARB_vbo interface:
*/
void bmBufferData(struct bufmgr *,
unsigned buffer,
unsigned size, const void *data, unsigned flags);
void bmBufferSubData(struct bufmgr *,
unsigned buffer,
unsigned offset, unsigned size, const void *data);
void bmBufferGetSubData(struct bufmgr *,
unsigned buffer,
unsigned offset, unsigned size, void *data);
void *bmMapBuffer(struct bufmgr *, unsigned buffer, unsigned access);
void bmUnmapBuffer(struct bufmgr *, unsigned buffer);
/* To be called prior to emitting commands to hardware which reference
* these buffers.
*
* NewBufferList() and AddBuffer() build up a list of buffers to be
* validated. The buffer list provides information on where the
* buffers should be placed and whether their contents need to be
* preserved on copying. The offset data elements are return values
* from this function telling the driver exactly where the buffers are
* currently located.
*
* ValidateBufferList() performs the actual validation and returns the
* buffer pools and offsets within the pools.
*
* FenceBufferList() must be called to set fences and other
* housekeeping before unlocking after a successful call to
* ValidateBufferList(). The buffer manager knows how to emit and test
* fences directly through the drm and without callbacks to the
* driver.
*/
struct _drmMMBufList *bmNewBufferList(void);
int bmAddBuffer(struct bufmgr *bm,
struct _drmMMBufList *list,
unsigned buffer,
unsigned flags,
unsigned *pool_return, unsigned long *offset_return);
int bmValidateBufferList(struct bufmgr *,
struct _drmMMBufList *, unsigned flags);
unsigned bmFenceBufferList(struct bufmgr *, struct _drmMMBufList *);
void bmFreeBufferList(struct _drmMMBufList *);
int bmScanBufferList(struct bufmgr *bm,
struct _drmMMBufList *list, unsigned buffer);
/* This functionality is used by the buffer manager, not really sure
* if we need to be exposing it in this way, probably libdrm will
* offer equivalent calls.
*
* For now they can stay, but will likely change/move before final:
*/
unsigned bmSetFence(struct bufmgr *);
int bmTestFence(struct bufmgr *, unsigned fence);
void bmFinishFence(struct bufmgr *, unsigned fence);
void bmSetShared(struct bufmgr *bm, unsigned buffer,
unsigned flags, unsigned long offset, void *virtual);
extern int INTEL_DEBUG;
#define DEBUG_BUFMGR 0x2000
#define DBG(...) do { if (INTEL_DEBUG & DEBUG_BUFMGR) _mesa_printf(__VA_ARGS__); } while(0)
#endif
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