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/* Copyright (c) 2001, Stanford University
* All rights reserved
*
* See the file LICENSE.txt for information on redistributing this software.
*/
#include "packer.h"
#include "cr_opcodes.h"
#include "cr_mem.h"
void PACK_APIENTRY crPackBoundsInfoCR( CR_PACKER_CONTEXT_ARGDECL const CRrecti *bounds, const GLbyte *payload, GLint len, GLint num_opcodes )
{
CR_GET_PACKER_CONTEXT(pc);
/* Don't get the buffered_ptr here because we've already
* verified that there's enough space for everything. */
unsigned char *data_ptr;
int len_aligned, total_len;
CR_LOCK_PACKER_CONTEXT(pc);
data_ptr = pc->buffer.data_current;
len_aligned = ( len + 0x3 ) & ~0x3;
total_len = 24 + len_aligned;
WRITE_DATA( 0, int, total_len );
WRITE_DATA( 4, int, bounds->x1 );
WRITE_DATA( 8, int, bounds->y1 );
WRITE_DATA( 12, int, bounds->x2 );
WRITE_DATA( 16, int, bounds->y2 );
WRITE_DATA( 20, int, num_opcodes );
/* skip the BOUNDSINFO */
data_ptr += 24;
/* put in padding opcodes (deliberately bogus) */
switch ( len_aligned - len )
{
case 3: *data_ptr++ = 0xff; RT_FALL_THRU();
case 2: *data_ptr++ = 0xff; RT_FALL_THRU();
case 1: *data_ptr++ = 0xff; RT_FALL_THRU();
default: break;
}
crMemcpy( data_ptr, payload, len );
WRITE_OPCODE( pc, CR_BOUNDSINFOCR_OPCODE );
pc->buffer.data_current += 24 + len_aligned;
CR_UNLOCK_PACKER_CONTEXT(pc);
}
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