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/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* 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 TUNGSTEN GRAPHICS 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.
*
**************************************************************************/
#ifndef BUFMGR_H
#define BUFMGR_H
#include "intel_context.h"
/* The buffer manager context. Opaque.
*/
struct bufmgr;
struct buffer;
struct bufmgr *bm_fake_intel_Attach( struct intel_context *intel );
/* Flags for validate and other calls. If both NO_UPLOAD and NO_EVICT
* are specified, ValidateBuffers is essentially a query.
*/
#define BM_MEM_LOCAL 0x1
#define BM_MEM_AGP 0x2
#define BM_MEM_VRAM 0x4 /* not yet used */
#define BM_WRITE 0x8 /* not yet used */
#define BM_READ 0x10 /* not yet used */
#define BM_NO_UPLOAD 0x20
#define BM_NO_EVICT 0x40
#define BM_NO_MOVE 0x80 /* not yet used */
#define BM_NO_ALLOC 0x100 /* legacy "fixed" buffers only */
#define BM_CLIENT 0x200 /* for map - pointer will be accessed
* without dri lock */
#define BM_MEM_MASK (BM_MEM_LOCAL|BM_MEM_AGP|BM_MEM_VRAM)
/* Create a pool of a given memory type, from a certain offset and a
* certain size.
*
* Also passed in is a virtual pointer to the start of the pool. This
* is useful in the faked-out version in i915 so that MapBuffer can
* return a pointer to a buffer residing in AGP space.
*
* Flags passed into a pool are inherited by all buffers allocated in
* that pool. So pools representing the static front,back,depth
* buffer allocations should have MEM_AGP|NO_UPLOAD|NO_EVICT|NO_MOVE to match
* the behaviour of the legacy allocations.
*
* Returns -1 for failure, pool number for success.
*/
int bmInitPool( struct intel_context *,
unsigned long low_offset,
void *low_virtual,
unsigned long size,
unsigned flags);
/* 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 intel_context *, const char *, unsigned n, struct buffer **buffers,
int align );
void bmDeleteBuffers(struct intel_context *, unsigned n, struct buffer **buffers);
/* Hook to inform faked buffer manager about fixed-position
* front,depth,back buffers. These may move to a fully memory-managed
* scheme, or they may continue to be managed as is.
*/
struct buffer *bmGenBufferStatic(struct intel_context *,
unsigned pool);
/* On evict, buffer manager will call invalidate_cb() to note that the
* buffer needs to be reloaded.
*
* Buffer is uploaded by calling bmMapBuffer() and copying data into
* the returned pointer.
*
* This is basically a big hack to get some more performance by
* turning off backing store for buffers where we either have it
* already (textures) or don't need it (batch buffers, temporary
* vbo's).
*/
void bmBufferSetInvalidateCB(struct intel_context *,
struct buffer *buf,
void (*invalidate_cb)( struct intel_context *, void *ptr ),
void *ptr,
GLboolean dont_fence_subdata);
/* 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:
*/
int bmBufferData(struct intel_context *,
struct buffer *buf,
unsigned size,
const void *data,
unsigned flags );
int bmBufferSubData(struct intel_context *,
struct buffer *buf,
unsigned offset,
unsigned size,
const void *data );
/* In this version, taking the offset will provoke an upload on
* buffers not already resident in AGP:
*/
unsigned bmBufferOffset(struct intel_context *,
struct buffer *buf);
/* Extract data from the buffer:
*/
void bmBufferGetSubData(struct intel_context *,
struct buffer *buf,
unsigned offset,
unsigned size,
void *data );
void *bmMapBuffer( struct intel_context *,
struct buffer *buf,
unsigned access );
void bmUnmapBuffer( struct intel_context *,
struct buffer *buf );
/* Pertains to all buffers who's offset has been taken since the last
* fence or release.
*/
int bmValidateBuffers( struct intel_context * );
void bmReleaseBuffers( struct intel_context * );
GLuint bmCtxId( struct intel_context *intel );
GLboolean bmError( struct intel_context * );
void bmEvictAll( struct intel_context * );
void *bmFindVirtual( struct intel_context *intel,
unsigned int offset,
size_t sz );
/* 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 intel_context * );
unsigned bmSetFenceLock( struct intel_context * );
unsigned bmLockAndFence( struct intel_context *intel );
int bmTestFence( struct intel_context *, unsigned fence );
void bmFinishFence( struct intel_context *, unsigned fence );
void bmFinishFenceLock( struct intel_context *, unsigned fence );
void bm_fake_NotifyContendedLockTake( struct intel_context * );
extern int INTEL_DEBUG;
#define DEBUG_BUFMGR 0x10000000
#define DBG(...) do { if (INTEL_DEBUG & DEBUG_BUFMGR) _mesa_printf(__VA_ARGS__); } while(0)
#endif
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