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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 INTEL_BATCHBUFFER_H
#define INTEL_BATCHBUFFER_H
#include "mtypes.h"
#include "bufmgr.h"
struct intel_context;
#define BATCH_SZ (16 * 1024)
#define BATCH_REFILL 4096
#define BATCH_RESERVED 16
#define INTEL_BATCH_NO_CLIPRECTS 0x1
#define INTEL_BATCH_CLIPRECTS 0x2
struct intel_batchbuffer {
struct intel_context *intel;
struct buffer *buffer;
GLuint flags;
unsigned long offset;
GLubyte *map;
GLubyte *ptr;
};
struct intel_batchbuffer *intel_batchbuffer_alloc( struct intel_context *intel );
void intel_batchbuffer_free( struct intel_batchbuffer *batch );
GLboolean intel_batchbuffer_flush( struct intel_batchbuffer *batch );
void intel_batchbuffer_unmap( struct intel_batchbuffer *batch );
GLubyte *intel_batchbuffer_map( struct intel_batchbuffer *batch );
/* Unlike bmBufferData, this currently requires the buffer be mapped.
* Consider it a convenience function wrapping multple
* intel_buffer_dword() calls.
*/
void intel_batchbuffer_data(struct intel_batchbuffer *batch,
const void *data,
GLuint bytes,
GLuint flags);
void intel_batchbuffer_release_space(struct intel_batchbuffer *batch,
GLuint bytes);
/* 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 GLuint
intel_batchbuffer_space( struct intel_batchbuffer *batch )
{
return (BATCH_SZ - BATCH_RESERVED) - (batch->ptr - (batch->map + batch->offset));
}
static inline void
intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch,
GLuint dword)
{
assert(batch->map);
assert(intel_batchbuffer_space(batch) >= 4);
*(GLuint *)(batch->ptr) = dword;
batch->ptr += 4;
}
static inline void
intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
GLuint sz,
GLuint flags)
{
assert(sz < BATCH_SZ - 8);
if (intel_batchbuffer_space(batch) < sz ||
(batch->flags != 0 && flags != 0 && batch->flags != flags))
intel_batchbuffer_flush(batch);
batch->flags |= flags;
}
void intel_batchbuffer_align( struct intel_batchbuffer *batch,
GLuint align,
GLuint sz );
/* Here are the crusty old macros, to be removed:
*/
#define BATCH_LOCALS
#define BEGIN_BATCH(n, flags) intel_batchbuffer_require_space(intel->batch, n*4, flags)
#define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel->batch, d)
#define ADVANCE_BATCH() do { } while(0)
#endif
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