/* 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; } } }