sync.c

/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    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)
{
    switch(mode)
    {
    case 0:
        GS_SET_CSR_hsync_intrupt(1);
        while(!GS_GET_CSR_hsync_intrupt);
    break;
    default:
        if(mode>1)
        {
            unsigned short i;
 
            for(i=0;i<mode;i++)
            {
                GS_SET_CSR_hsync_intrupt(1);
                while(!GS_GET_CSR_hsync_intrupt);
            }
        }
    }
}
 
void GsVSync(int mode)
{
    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)
        {
            unsigned short i;
 
            for(i=0;i<mode;i++)
            {
                GS_SET_CSR_vsync_intrupt(1);
                while(!GS_GET_CSR_vsync_intrupt);
 
            }
        }
    }
}