diff options
| author | Xavi Del Campo <xavi.dcr@tutanota.com> | 2020-01-31 10:32:23 +0100 |
|---|---|---|
| committer | Xavi Del Campo <xavi.dcr@tutanota.com> | 2020-01-31 10:32:23 +0100 |
| commit | 7c24e9a9b02b04dcaf9507acb94091ea70a2c02d (patch) | |
| tree | c28d0748652ad4b4222309e46e6cfc82c0906220 /tools/mod4psx.c | |
| parent | a2b7b6bb1cc2f4a3258b7b2dbc92399d151f864d (diff) | |
Imported pristine psxsdk-20190410 from official repo
Diffstat (limited to 'tools/mod4psx.c')
| -rw-r--r-- | tools/mod4psx.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/tools/mod4psx.c b/tools/mod4psx.c new file mode 100644 index 0000000..1fc68ef --- /dev/null +++ b/tools/mod4psx.c @@ -0,0 +1,164 @@ +#include <stdio.h>
+#include <stdlib.h>
+#include "../libmodplay/modplay.h"
+#include "adpcm.h"
+
+unsigned char *mod_data;
+ModMusic *mod;
+
+// Container format
+
+// Header
+
+// 8 bytes - "_mod4psx"
+// 4 bytes - Number of samples contained
+
+// Sample format
+// 4 bytes - Length of ADPCM sample
+// 8 bytes - Reserved
+// ... Data ...
+
+// All multi word numerical values are in little endian format
+// which is used by the processor of the PlayStation.
+// All data is aligned to 4 bytes.
+
+unsigned char adpcm_buffer[0x10000];
+
+int main(int argc, char *argv[])
+{
+ FILE *f;
+ int sz, x,y;
+
+ if(argc < 3)
+ {
+ printf("mod4psx <mod_music> <adpcm_dat>\n");
+ printf(
+"\nMOD4PSX gets the sound samples from a music module supported by libmodplay, "
+"and then converts them to PS1 ADPCM format and puts them all in a datafile, which will be able to be loaded "
+"by libmodplay. In this way the CPU time needed by the PlayStation processor to convert at runtime from PCM to ADPCM is saved.\n"
+);
+ return -1;
+ }
+
+ f = fopen(argv[1], "rb");
+
+ if(f == NULL)
+ {
+ printf("Could not open %s for reading. Aborting.\n", argv[1]);
+ return -1;
+ }
+
+ fseek(f, 0, SEEK_END);
+ sz = ftell(f);
+ fseek(f, 0, SEEK_SET);
+ mod_data = malloc(sz);
+
+ if(mod_data == NULL)
+ {
+ printf("Could not allocate %d bytes of memory. Aborting.\n", sz);
+ return -1;
+ }
+
+ fread(mod_data, sizeof(char), sz, f);
+
+ fclose(f);
+
+ mod = MODLoad(mod_data);
+
+ printf("Title: %s\n", mod->title);
+
+
+
+ f = fopen(argv[2], "wb");
+
+// Write header
+
+// Magic string
+ fprintf(f, "_mod4psx");
+// Write number of samples
+ fputc(mod->sample_num & 0xff, f);
+ fputc((mod->sample_num >> 8) & 0xff, f);
+ fputc(0, f);
+ fputc(0, f);
+
+ for(x = 0; x < mod->sample_num; x++)
+ {
+ //printf("%d: %s\n", x, mod->sample[x].name);
+ printf("sample[%d].bits = %d, sample[%d].data_type = %d\n", x, mod->sample[x].bits, x, mod->sample[x].data_type);
+
+
+ if(mod->sample[x].length >= 32)
+ {
+ if((mod->sample[x].data_type & 1) && mod->sample[x].bits == 8)
+ {
+ for(y = 0; y < mod->sample[x].length; y++)
+ mod->sample[x].data[y]^=0x80;
+ }
+
+ if(//mod->fmt == MOD_FMT_MOD &&
+ mod->sample[x].repeat_len > 2)
+ {
+
+ sz = SsAdpcmPack(mod->sample[x].data, adpcm_buffer, // FIX THIS!!!
+ mod->sample[x].length / (mod->sample[x].bits / 8), (mod->sample[x].bits==16)?FMT_S16:FMT_U8,
+ sizeof(adpcm_buffer),
+ 1, mod->sample[x].repeat_off);
+
+ }
+ else
+ {
+
+
+ sz = SsAdpcmPack(mod->sample[x].data, adpcm_buffer,
+ mod->sample[x].length / (mod->sample[x].bits / 8), (mod->sample[x].bits==16)?FMT_S16:FMT_U8,
+ sizeof(adpcm_buffer), 0, 0);
+
+ }
+
+ printf("%d) %s, %d -> %d, %d, %d, FIN=%d\n", x, mod->sample[x].name,
+ mod->sample[x].length, sz,
+ mod->sample[x].repeat_off,
+ mod->sample[x].repeat_len, mod->sample[x].finetune);
+ }
+ else
+ {
+ printf("%d) %s, Not written\n", x, mod->sample[x].name);
+ sz = 0;
+ }
+
+// Write length of ADPCM sample
+
+ fputc(sz & 0xff, f);
+ fputc((sz>>8)&0xff, f);
+ fputc((sz>>16)&0xff, f);
+ fputc((sz>>24)&0xff, f);
+
+// Skip 8 reserved bytes - for future expansion...
+
+ fseek(f, 8, SEEK_CUR);
+
+// Write ADPCM sample data
+
+// Manipulate the samples to do looping for Protracker MOD samples
+// The PCM to ADPCM conversion routines haven't been modified to do this yet.
+
+ /*if(mod->sample[x].repeat_len > 2 &&
+ mod->fmt == MOD_FMT_MOD)
+ {
+
+ for(y = 0; y < ((sz / 16)-1); y++)
+ {
+ if((mod->sample[x].repeat_off / 28) == y)
+ adpcm_buffer[(y<<4) + 1] = 6;
+ else
+ adpcm_buffer[(y<<4) + 1] = 2;
+ }
+
+ adpcm_buffer[(y<<4) + 1] = 3;
+ }*/
+
+ fwrite(adpcm_buffer, sizeof(char), sz, f);
+ }
+
+ return 0;
+}
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