/* Copyright (c) 2001, Stanford University
 * All rights reserved
 *
 * See the file LICENSE.txt for information on redistributing this software.
 */

#include "packer.h"
#include "cr_protocol.h"

void PACK_APIENTRY crPackBegin( GLenum mode )
{
	GET_PACKER_CONTEXT(pc);
	unsigned char *data_ptr;
	(void) pc;
	if (pc->buffer.canBarf)
	{
		if (!pc->buffer.holds_BeginEnd)
			pc->Flush( pc->flush_arg );
		pc->buffer.in_BeginEnd = 1;
		pc->buffer.holds_BeginEnd = 1;
	}
	GET_BUFFERED_POINTER( pc, 4 );
	pc->current.begin_data = data_ptr;
	pc->current.begin_op = pc->buffer.opcode_current;
	pc->current.attribsUsedMask = 0;
	WRITE_DATA( 0, GLenum, mode );
	WRITE_OPCODE( pc, CR_BEGIN_OPCODE );
}

void PACK_APIENTRY crPackBeginSWAP( GLenum mode )
{
	GET_PACKER_CONTEXT(pc);
	unsigned char *data_ptr;
	(void) pc;
	if (pc->buffer.canBarf)
	{
		if (!pc->buffer.holds_BeginEnd)
			pc->Flush( pc->flush_arg );
		pc->buffer.in_BeginEnd = 1;
		pc->buffer.holds_BeginEnd = 1;
	}
	GET_BUFFERED_POINTER( pc, 4 );
	pc->current.begin_data = data_ptr;
	pc->current.begin_op = pc->buffer.opcode_current;
	pc->current.attribsUsedMask = 0;
	WRITE_DATA( 0, GLenum, SWAP32(mode) );
	WRITE_OPCODE( pc, CR_BEGIN_OPCODE );
}

void PACK_APIENTRY crPackEnd( void )
{
	GET_PACKER_CONTEXT(pc);
	unsigned char *data_ptr;
	(void) pc;
	GET_BUFFERED_POINTER_NO_ARGS( pc );
	WRITE_OPCODE( pc, CR_END_OPCODE );
	pc->buffer.in_BeginEnd = 0;
}

void PACK_APIENTRY crPackEndSWAP( void )
{
	GET_PACKER_CONTEXT(pc);
	unsigned char *data_ptr;
	(void) pc;
	GET_BUFFERED_POINTER_NO_ARGS( pc );
	WRITE_OPCODE( pc, CR_END_OPCODE );
	pc->buffer.in_BeginEnd = 0;
}