Zbuffer.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"
 
extern QWORD GsPrimWorkArea[];
 
void GsSetDefaultZBufferEnv(GS_ZENV *zenv, u8 update_mask)
{
        zenv->update_mask = update_mask;
}
 
void GsSetDefaultZBufferEnvAddress(GS_ZENV *zenv, unsigned short vram_addr, unsigned char psm)
{
        zenv->vram_addr=vram_addr;
        zenv->psm=psm;
}
 
void GsPutZBufferEnv1(GS_ZENV *zenv)
{
        QWORD *p;
        p=UNCACHED_SEG(GsPrimWorkArea);
        gs_setGIF_TAG(((GS_GIF_TAG *)&p[0]), 1,1,0,0,GS_GIF_PACKED,1,gif_rd_ad);
        gs_setR_ZBUF_1(((GS_R_ZBUF *)&p[1]), zenv->vram_addr, zenv->psm, zenv->update_mask);
 
        GsDmaSend(GsPrimWorkArea, 2);
        GsDmaWait();
}
 
void GsPutZBufferEnv2(GS_ZENV *zenv)
{
        QWORD *p;
        p=UNCACHED_SEG(GsPrimWorkArea);
        gs_setGIF_TAG(((GS_GIF_TAG *)&p[0]), 4,1,0,0,GS_GIF_PACKED,1,gif_rd_ad);
        gs_setR_ZBUF_2(((GS_R_ZBUF *)&p[1]), zenv->vram_addr, zenv->psm, zenv->update_mask);
 
        GsDmaSend(GsPrimWorkArea, 2);
        GsDmaWait();
}