sync.c

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/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# (c) 2009 Lion
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#include <errno.h>
#include <stdio.h>
#include <kernel.h>
#include <libgs.h>
 
#include "internal.h"
 
void GsDrawSync(int mode)
{
        switch(mode)
        {
        case 0:
        default:
                GsDmaWait();
        }
}
 
void GsHSync(int mode)
{
        unsigned short i;
 
        switch(mode)
        {
        case 0:
                GS_SET_CSR_hsync_intrupt(1);
                while(!GS_GET_CSR_hsync_intrupt);
        break;
        default:
                if(mode>1)
                {
                        for(i=0;i<mode;i++)
                        {
                                GS_SET_CSR_hsync_intrupt(1);
                                while(!GS_GET_CSR_hsync_intrupt);
                        }
                }
        }
}
 
void GsVSync(int mode)
{
        unsigned short i;
 
        switch(mode)
        {
        case 0: //just wait
                GS_SET_CSR_vsync_intrupt(1);
                while(!GS_GET_CSR_vsync_intrupt);
        break;
        default: // wait for num of vsync to pass
                if(mode>1)
                {
 
                        for(i=0;i<mode;i++)
                        {
                                GS_SET_CSR_vsync_intrupt(1);
                                while(!GS_GET_CSR_vsync_intrupt);
 
                        }
                }
        }
}