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/**************************************************************************
*
* Copyright 2007 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 INTEL_BATCHBUFFER_H
#define INTEL_BATCHBUFFER_H
#include "pipe/p_compiler.h"
#include "dri_bufmgr.h"
struct intel_context;
#define BATCH_SZ 16384
#define BATCH_RESERVED 16
#define MAX_RELOCS 4096
#define INTEL_BATCH_NO_CLIPRECTS 0x1
#define INTEL_BATCH_CLIPRECTS 0x2
struct buffer_reloc
{
struct _DriBufferObject *buf;
uint offset;
uint delta; /* not needed? */
};
struct intel_batchbuffer
{
struct bufmgr *bm;
struct intel_context *intel;
struct _DriBufferObject *buffer;
struct _DriFenceObject *last_fence;
uint flags;
drmBOList list;
uint list_count;
ubyte *map;
ubyte *ptr;
struct buffer_reloc reloc[MAX_RELOCS];
uint nr_relocs;
uint size;
};
struct intel_batchbuffer *intel_batchbuffer_alloc(struct intel_context *intel);
void intel_batchbuffer_free(struct intel_batchbuffer *batch);
void intel_batchbuffer_finish(struct intel_batchbuffer *batch);
struct _DriFenceObject *intel_batchbuffer_flush(struct intel_batchbuffer
*batch);
void intel_batchbuffer_reset(struct intel_batchbuffer *batch);
/* Unlike bmBufferData, this currently requires the buffer be mapped.
* Consider it a convenience function wrapping multiple
* intel_buffer_dword() calls.
*/
void intel_batchbuffer_data(struct intel_batchbuffer *batch,
const void *data, uint bytes, uint flags);
void intel_batchbuffer_release_space(struct intel_batchbuffer *batch,
uint bytes);
boolean intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch,
struct _DriBufferObject *buffer,
uint flags,
uint mask, uint offset);
/* Inline functions - might actually be better off with these
* non-inlined. Certainly better off switching all command packets to
* be passed as structs rather than dwords, but that's a little bit of
* work...
*/
static INLINE uint
intel_batchbuffer_space(struct intel_batchbuffer *batch)
{
return (batch->size - BATCH_RESERVED) - (batch->ptr - batch->map);
}
static INLINE void
intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch, uint dword)
{
assert(batch->map);
assert(intel_batchbuffer_space(batch) >= 4);
*(uint *) (batch->ptr) = dword;
batch->ptr += 4;
}
static INLINE void
intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
uint sz, uint flags)
{
assert(sz < batch->size - 8);
if (intel_batchbuffer_space(batch) < sz ||
(batch->flags != 0 && flags != 0 && batch->flags != flags))
intel_batchbuffer_flush(batch);
batch->flags |= flags;
}
/* Here are the crusty old macros, to be removed:
*/
#define BATCH_LOCALS
#define BEGIN_BATCH(n, flags) do { \
intel_batchbuffer_require_space(intel->batch, (n)*4, flags); \
} while (0)
#define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel->batch, d)
#define OUT_RELOC(buf,flags,mask,delta) do { \
assert((delta) >= 0); \
intel_batchbuffer_emit_reloc(intel->batch, buf, flags, mask, delta); \
} while (0)
#define ADVANCE_BATCH() do { } while(0)
#endif
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