/* GSP+GSB - 2008-11-28 - manakoAT
Super Swing Golf 1 & 2 (WII) */
VGMSTREAM * init_vgmstream_gsp_gsb(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
STREAMFILE * streamFileGSP = NULL;
char filename[PATH_LIMIT];
char filenameGSP[PATH_LIMIT];
int channel_count;
int loop_flag;
int header_len;
int i;
off_t coef1_start;
off_t coef2_start;
off_t start_offset;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("gsb",filename_extension(filename))) goto fail;
strcpy(filenameGSP,filename);
strcpy(filenameGSP+strlen(filenameGSP)-3,"gsp");
streamFileGSP = streamFile->open(streamFile,filenameGSP,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!streamFileGSP) goto fail;
/* check header */
if (read_32bitBE(0x00,streamFileGSP) != 0x47534E44) /* "GSND" */
goto fail;
channel_count = (uint16_t)read_16bitBE(0x3A,streamFileGSP);
loop_flag = (read_32bitBE(0x64,streamFileGSP) != 0xFFFFFFFF);
header_len = read_32bitBE(0x1C,streamFileGSP);
coef1_start = header_len-0x4C;
coef2_start = header_len-0x1C;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitBE(0x34,streamFileGSP);
vgmstream->coding_type = coding_NGC_DSP;
if(loop_flag) {
vgmstream->loop_start_sample = read_32bitBE(0x64,streamFileGSP);
vgmstream->loop_end_sample = read_32bitBE(0x68,streamFileGSP);
}
if (channel_count == 1) {
vgmstream->layout_type = layout_gsb_blocked;
} else if (channel_count > 1) {
vgmstream->layout_type = layout_gsb_blocked;
vgmstream->interleave_block_size = read_32bitBE(header_len-0x64,streamFileGSP);
}
vgmstream->meta_type = meta_GSP_GSB;
/* open the file for reading by each channel */
{
for (i=0;i<channel_count;i++) {
vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,vgmstream->interleave_block_size);
if (!vgmstream->ch[i].streamfile) goto fail;
vgmstream->ch[i].channel_start_offset=
vgmstream->ch[i].offset=i*vgmstream->interleave_block_size;
}
}
if (vgmstream->coding_type == coding_NGC_DSP) {
int i;
for (i=0;i<16;i++) {
vgmstream->ch[0].adpcm_coef[i] = read_16bitBE(coef1_start+i*2,streamFileGSP);
}
if (vgmstream->channels == 2) {
for (i=0;i<16;i++) {
vgmstream->ch[1].adpcm_coef[i] = read_16bitBE(coef2_start+i*2,streamFileGSP);
}
}
}
/* Calc num_samples */
start_offset = 0x0;
gsb_block_update(start_offset,vgmstream);
vgmstream->num_samples=0;
do {
vgmstream->num_samples += vgmstream->current_block_size*14/8;
gsb_block_update(vgmstream->next_block_offset,vgmstream);
} while (vgmstream->next_block_offset<get_streamfile_size(streamFile));
gsb_block_update(start_offset,vgmstream);
close_streamfile(streamFileGSP); streamFileGSP=NULL;
return vgmstream;
/* clean up anything we may have opened */
fail:
if (streamFileGSP) close_streamfile(streamFileGSP);
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}
void render_vgmstream_blocked(sample * buffer, int32_t sample_count, VGMSTREAM * vgmstream) {
int samples_written=0;
int frame_size = get_vgmstream_frame_size(vgmstream);
int samples_per_frame = get_vgmstream_samples_per_frame(vgmstream);
int samples_this_block;
if (frame_size == 0) {
/* assume 4 bit */
/* TODO: get_vgmstream_frame_size() really should return bits... */
samples_this_block = vgmstream->current_block_size * 2 * samples_per_frame;
} else {
samples_this_block = vgmstream->current_block_size / frame_size * samples_per_frame;
}
while (samples_written<sample_count) {
int samples_to_do;
if (vgmstream->loop_flag && vgmstream_do_loop(vgmstream)) {
if (frame_size == 0) {
samples_this_block = vgmstream->current_block_size * 2 * samples_per_frame;
} else {
samples_this_block = vgmstream->current_block_size / frame_size * samples_per_frame;
}
continue;
}
samples_to_do = vgmstream_samples_to_do(samples_this_block, samples_per_frame, vgmstream);
if (samples_written+samples_to_do > sample_count)
samples_to_do=sample_count-samples_written;
if (vgmstream->current_block_offset>=0)
decode_vgmstream(vgmstream, samples_written, samples_to_do, buffer);
else {
int i;
/* we've run off the end! */
for (i=samples_written*vgmstream->channels;
i<(samples_written+samples_to_do)*vgmstream->channels; i++)
buffer[i]=0;
}
samples_written += samples_to_do;
vgmstream->current_sample += samples_to_do;
vgmstream->samples_into_block+=samples_to_do;
if (vgmstream->samples_into_block==samples_this_block) {
switch (vgmstream->layout_type) {
case layout_ast_blocked:
ast_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_halpst_blocked:
if (vgmstream->next_block_offset>=0)
halpst_block_update(vgmstream->next_block_offset,vgmstream);
else
vgmstream->current_block_offset=-1;
break;
case layout_xa_blocked:
xa_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_ea_blocked:
ea_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_eacs_blocked:
eacs_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_caf_blocked:
caf_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_wsi_blocked:
wsi_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_str_snds_blocked:
str_snds_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_ws_aud_blocked:
ws_aud_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_matx_blocked:
matx_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_de2_blocked:
de2_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_emff_ps2_blocked:
emff_ps2_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_emff_ngc_blocked:
emff_ngc_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_gsb_blocked:
gsb_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_vs_blocked:
vs_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_xvas_blocked:
xvas_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_thp_blocked:
thp_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_filp_blocked:
filp_block_update(vgmstream->next_block_offset,vgmstream);
break;
default:
break;
}
/* for VBR these may change */
frame_size = get_vgmstream_frame_size(vgmstream);
samples_per_frame = get_vgmstream_samples_per_frame(vgmstream);
if (frame_size == 0) {
samples_this_block = vgmstream->current_block_size * 2 * samples_per_frame;
} else {
samples_this_block = vgmstream->current_block_size / frame_size * samples_per_frame;
}
vgmstream->samples_into_block=0;
}
}
}