1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/rendload.c	Wed Oct 10 11:02:04 2007 +0000
     1.3 @@ -0,0 +1,138 @@
     1.4 +/**
     1.5 + * $Id: rendload.c,v 1.1 2007-01-16 11:09:39 nkeynes Exp $
     1.6 + *
     1.7 + * Scene-save loader support. This is the other side of rendsave.c
     1.8 + *
     1.9 + * Copyright (c) 2005 Nathan Keynes.
    1.10 + *
    1.11 + * This program is free software; you can redistribute it and/or modify
    1.12 + * it under the terms of the GNU General Public License as published by
    1.13 + * the Free Software Foundation; either version 2 of the License, or
    1.14 + * (at your option) any later version.
    1.15 + *
    1.16 + * This program is distributed in the hope that it will be useful,
    1.17 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.18 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.19 + * GNU General Public License for more details.
    1.20 + */
    1.21 +
    1.22 +#include <stdio.h>
    1.23 +#include <errno.h>
    1.24 +#include "lib.h"
    1.25 +#include "asic.h"
    1.26 +#include "pvr.h"
    1.27 +
    1.28 +char *scene_magic = "%!-lxDream!Scene";
    1.29 +
    1.30 +#define PVR2_BASE 0xA05F8000
    1.31 +
    1.32 +#define COPYREG(x) long_write( (PVR2_BASE+x), scene_header.pvr2_regs[(x>>2)] )
    1.33 +
    1.34 +int pvr2_render_load_scene( FILE *f )
    1.35 +{
    1.36 +    struct {
    1.37 +	char magic[16];
    1.38 +	uint32_t version;
    1.39 +	uint32_t timestamp;
    1.40 +	uint32_t frame_count;
    1.41 +	uint32_t pvr2_regs[0x400];
    1.42 +	uint32_t palette[0x400];
    1.43 +    } scene_header;
    1.44 +    uint32_t start = 0xFFFFFFFF, length;
    1.45 +    
    1.46 +    if( fread( &scene_header, sizeof(scene_header), 1, f ) != 1 ) {
    1.47 +	fprintf( stderr, "Failed to read scene header (%s)\n", strerror(errno) );
    1.48 +	return -1;
    1.49 +    }
    1.50 +    if( memcmp( scene_magic, scene_header.magic, 16 ) != 0 ) {
    1.51 +	fprintf( stderr, "Failed to load scene data: Header not found\n" );
    1.52 +	fclose(f);
    1.53 +	return -1;
    1.54 +    }
    1.55 +
    1.56 +    fprintf( stdout, "Loaded header\n" );
    1.57 +    /* Load the VRAM sections */
    1.58 +    while(1) {
    1.59 +	fread( &start, sizeof(uint32_t), 1, f );
    1.60 +	if( start == 0xFFFFFFFF ) { /* EOF */
    1.61 +	    break;
    1.62 +	}
    1.63 +	fread( &length, sizeof(uint32_t), 1, f );
    1.64 +	int read = fread( (char *)(0xA5000000 + start), 1, length, f );
    1.65 +	if( read != length ) {
    1.66 +	    fprintf( stderr, "Failed to load %d bytes at %08X (Got %d - %s)\n",
    1.67 +		     length, start, read, strerror(errno) );
    1.68 +	    fclose(f);
    1.69 +	    return -2;
    1.70 +	} else {
    1.71 +	    fprintf( stdout, "Loaded %d bytes at %08X\n", length, start );
    1.72 +	}
    1.73 +    }
    1.74 +
    1.75 +    /* Copy the fog table */
    1.76 +    memcpy( (char *)0xA05F8200, ((char *)scene_header.pvr2_regs) + 0x200, 0x200 );
    1.77 +    /* Copy the palette data */
    1.78 +    memcpy( (char *)0xA05F9000, scene_header.palette, 4096 );
    1.79 +    /* And now the other registers */
    1.80 +    COPYREG(0x018);
    1.81 +    COPYREG(0x020);
    1.82 +    COPYREG(0x02C);
    1.83 +    COPYREG(0x030);
    1.84 +    COPYREG(0x044);
    1.85 +    COPYREG(0x048);
    1.86 +    COPYREG(0x04C);
    1.87 +    COPYREG(0x05C);
    1.88 +    COPYREG(0x060);
    1.89 +    COPYREG(0x064);
    1.90 +    COPYREG(0x068);
    1.91 +    COPYREG(0x06C);
    1.92 +    COPYREG(0x074);
    1.93 +    COPYREG(0x078);
    1.94 +    COPYREG(0x07C);
    1.95 +    COPYREG(0x080);
    1.96 +    COPYREG(0x084);
    1.97 +    COPYREG(0x088);
    1.98 +    COPYREG(0x08C);
    1.99 +    COPYREG(0x098);
   1.100 +    COPYREG(0x0B0);
   1.101 +    COPYREG(0x0B4);
   1.102 +    COPYREG(0x0B8);
   1.103 +    COPYREG(0x0BC);
   1.104 +    COPYREG(0x0C0);
   1.105 +    COPYREG(0x0E4);
   1.106 +    COPYREG(0x0F4);
   1.107 +    COPYREG(0x108);
   1.108 +    COPYREG(0x110);
   1.109 +    COPYREG(0x114);
   1.110 +    COPYREG(0x118);    
   1.111 +    fprintf( stdout, "Load complete\n" );
   1.112 +    fclose(f);
   1.113 +}
   1.114 +
   1.115 +
   1.116 +void pvr2_render_loaded_scene()
   1.117 +{
   1.118 +    asic_clear();
   1.119 +    long_write( (PVR2_BASE+0x14), 0xFFFFFFFF );
   1.120 +    asic_wait( EVENT_PVR_RENDER_DONE );
   1.121 +    asic_clear();
   1.122 +    asic_wait( EVENT_RETRACE );
   1.123 +    uint32_t addr = long_read( (PVR2_BASE+0x060) );
   1.124 +    uint32_t mod = long_read( (PVR2_BASE+0x04C) );
   1.125 +    long_write( (PVR2_BASE+0x050), addr);
   1.126 +    long_write( (PVR2_BASE+0x054), addr + (mod<<3) );
   1.127 +}
   1.128 +
   1.129 +
   1.130 +int main()
   1.131 +{
   1.132 +    pvr_init();
   1.133 +    pvr2_render_load_scene(stdin);
   1.134 +    pvr2_render_loaded_scene();
   1.135 +    asic_clear();
   1.136 +    asic_wait(EVENT_RETRACE);
   1.137 +    asic_clear();
   1.138 +    asic_wait(EVENT_RETRACE);
   1.139 +    asic_clear();
   1.140 +    asic_wait(EVENT_RETRACE);
   1.141 +}