236 lines
8.2 KiB
C
236 lines
8.2 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* RFTM - Retro Studios format [Metroid Prime Remastered] */
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static VGMSTREAM* init_vgmstream_rfrm_mpr(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t fmta_offset = 0, data_offset = 0, ras3_offset = 0, header_offset, start_offset;
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size_t data_size = 0, interleave;
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int loop_flag, channels;
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int loop_start, loop_end, padding;
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/* checks */
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if (!is_id32be(0x00, sf, "RFRM"))
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goto fail;
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/* 0x08: file size but not exact */
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if (!is_id32be(0x14, sf, "CSMP"))
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goto fail;
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if (!check_extensions(sf, "csmp"))
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goto fail;
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if (read_32bitLE(0x18,sf) != 0x1F) /* assumed, also at 0x1c */
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goto fail;
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/* parse chunks (always BE) */
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{
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off_t chunk_offset = 0x20;
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off_t file_size = get_streamfile_size(sf);
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while (chunk_offset < file_size) {
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uint32_t chunk_type = read_32bitBE(chunk_offset + 0x00,sf);
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size_t chunk_size = read_32bitLE(chunk_offset + 0x08,sf);
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switch(chunk_type) {
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case 0x464D5441: /* "FMTA" */
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fmta_offset = chunk_offset + 0x18;
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chunk_offset += 5 + 0x18 + chunk_size;
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break;
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case 0x44415441: /* "DATA" */
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data_offset = chunk_offset + 0x18;
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data_size = read_32bitLE(chunk_offset + 0x04, sf);
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/* we're done here, DATA is the last chunk */
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chunk_offset = file_size;
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break;
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case 0x52415333: /* "RAS3" */
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ras3_offset = chunk_offset + 0x18;
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chunk_offset += 60;
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break;
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case 0x43524D53: /* CRMS */
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chunk_offset += 9 + 0x18 + chunk_size + read_32bitLE(chunk_offset + 0x18 + chunk_size + 5, sf);
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break;
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default:
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goto fail;
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}
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}
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if (!fmta_offset || !data_offset || !data_size)
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goto fail;
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}
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/* parse FMTA / DATA (fully interleaved standard DSPs) */
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channels = read_8bit(fmta_offset + 0x00, sf);
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if (channels == 0) goto fail; /* div by zero */
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/* FMTA 0x08: channel mapping */
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header_offset = data_offset;
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start_offset = header_offset + 0x80 * channels;
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loop_flag = read_16bitLE(header_offset + 0x0C, sf);
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interleave = data_size / channels;
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if (ras3_offset) {
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int block_size = read_32bitLE(ras3_offset + 0x00, sf);
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int block_samples = read_32bitLE(ras3_offset + 0x8, sf);
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int loop_start_block = read_32bitLE(ras3_offset + 0x14, sf);
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int loop_start_sample = read_32bitLE(ras3_offset + 0x18, sf);
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int loop_end_block = read_32bitLE(ras3_offset + 0x1C, sf);
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int loop_end_sample = read_32bitLE(ras3_offset + 0x20, sf);
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padding = read_32bitLE(ras3_offset + 0x0C, sf);
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loop_start = loop_start_block * block_samples + loop_start_sample - padding;
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loop_end = loop_end_block * block_samples + loop_end_sample - padding;
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if ((loop_start || loop_end) && (loop_start < loop_end))
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loop_flag = 1;
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interleave = block_size / channels;
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} else {
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loop_start = dsp_nibbles_to_samples(read_32bitLE(header_offset + 0x10, sf));
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loop_end = dsp_nibbles_to_samples(read_32bitLE(header_offset + 0x14, sf)) + 1;
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}
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_RFRM;
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vgmstream->sample_rate = read_32bitLE(header_offset + 0x08, sf);
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vgmstream->num_samples = read_32bitLE(header_offset + 0x00, sf);
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vgmstream->loop_start_sample = loop_start;
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vgmstream->loop_end_sample = loop_end;
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if (vgmstream->loop_end_sample > vgmstream->num_samples) /* ? */
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vgmstream->loop_end_sample = vgmstream->num_samples;
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if (ras3_offset) {
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int padding_bytes = padding / 14 * 8; /* round to frames */
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vgmstream->interleave_first_block_size = interleave - padding_bytes;
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vgmstream->interleave_first_skip = padding_bytes;
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start_offset += padding_bytes;
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}
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = interleave;
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dsp_read_coefs(vgmstream, sf, header_offset + 0x1C, 0x80, 0);
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dsp_read_hist (vgmstream, sf, header_offset + 0x40, 0x80, 0);
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if (!vgmstream_open_stream(vgmstream, sf, start_offset))
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goto fail;
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return vgmstream;
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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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/* RFTM - Retro Studios format [Donkey Kong Country Tropical Freeze (WiiU/Switch)] */
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VGMSTREAM* init_vgmstream_rfrm(STREAMFILE* sf) {
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VGMSTREAM *vgmstream = NULL;
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off_t fmta_offset = 0, data_offset = 0, header_offset, start_offset;
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size_t data_size = 0, interleave;
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int loop_flag, channels, version;
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int big_endian;
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int32_t (*read_32bit)(off_t,STREAMFILE*) = NULL;
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int16_t (*read_16bit)(off_t,STREAMFILE*) = NULL;
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/* checks */
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if (!is_id32be(0x00, sf, "RFRM"))
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goto fail;
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/* 0x08: file size but not exact */
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if (!is_id32be(0x14, sf, "CSMP"))
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goto fail;
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if (!check_extensions(sf, "csmp"))
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goto fail;
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version = read_32bitBE(0x18,sf); /* assumed, also at 0x1c */
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if (version == 0x0a) { /* Wii U */
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read_32bit = read_32bitBE;
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read_16bit = read_16bitBE;
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big_endian = 1;
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}
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else if (version == 0x12) { /* Switch */
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read_32bit = read_32bitLE;
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read_16bit = read_16bitLE;
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big_endian = 0;
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}
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else if (version == 0x1F000000) { /* Metroid Prime Remastered */
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return init_vgmstream_rfrm_mpr(sf);
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}
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else {
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goto fail;
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}
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/* parse chunks (always BE) */
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{
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off_t chunk_offset = 0x20;
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off_t file_size = get_streamfile_size(sf);
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while (chunk_offset < file_size) {
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uint32_t chunk_type = read_32bitBE(chunk_offset+0x00,sf);
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size_t chunk_size = read_32bitBE(chunk_offset+0x08,sf); /* maybe 64b from 0x04? */
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switch(chunk_type) {
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case 0x464D5441: /* "FMTA" */
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fmta_offset = chunk_offset + 0x18;
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break;
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case 0x44415441: /* "DATA" */
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data_offset = chunk_offset + 0x18;
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data_size = chunk_size;
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break;
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default: /* known: "LABL" (usually before "FMTA"), "META" (usually after "DATA") */
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break;
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}
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chunk_offset += 0x18 + chunk_size;
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}
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if (!fmta_offset || !data_offset || !data_size)
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goto fail;
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}
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/* parse FMTA / DATA (fully interleaved standard DSPs) */
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channels = read_8bit(fmta_offset+0x00, sf);
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/* FMTA 0x08: channel mapping */
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header_offset = data_offset;
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if (version == 0x0a) {
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size_t align = 0x03; /* possibly 32b align */
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header_offset += align;
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data_size -= align;
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}
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start_offset = header_offset + 0x60;
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loop_flag = read_16bit(header_offset + 0x0C, sf);
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interleave = data_size / channels;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_RFRM;
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vgmstream->sample_rate = read_32bit(header_offset + 0x08, sf);
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vgmstream->num_samples = read_32bit(header_offset + 0x00, sf);
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vgmstream->loop_start_sample = dsp_nibbles_to_samples(read_32bit(header_offset + 0x10, sf));
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vgmstream->loop_end_sample = dsp_nibbles_to_samples(read_32bit(header_offset + 0x14, sf)) + 1;
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if (vgmstream->loop_end_sample > vgmstream->num_samples) /* ? */
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vgmstream->loop_end_sample = vgmstream->num_samples;
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = interleave;
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dsp_read_coefs(vgmstream, sf, header_offset + 0x1C, interleave, big_endian);
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dsp_read_hist (vgmstream, sf, header_offset + 0x40, interleave, big_endian);
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if (!vgmstream_open_stream(vgmstream, sf, start_offset))
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goto fail;
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return vgmstream;
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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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