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Nunuhara Cabbage
9ab13af34e
For alice-ar. This is a wrapper format for QNT CGs. I have no idea what the additional metadata is for.
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* Copyright (C) 2019 Nunuhara Cabbage <nunuhara@haniwa.technology>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "little_endian.h"
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#include "system4.h"
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#include "system4/cg.h"
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#include "system4/dcf.h"
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#include "system4/qnt.h"
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static const uint8_t *dcf_get_qnt(const uint8_t *data)
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{
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if (data[0] != 'd' && data[1] != 'c' && data[2] != 'f' && data[3] != 0x20)
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return NULL;
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int h2 = 8 + LittleEndian_getDW(data, 4);
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if (data[h2] != 'd' || data[h2+1] != 'f' || data[h2+2] != 'd' || data[h2+3] != 'l')
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return NULL;
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int h3 = h2 + 8 + LittleEndian_getDW(data, h2+4);
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if (data[h3] != 'd' || data[h3+1] != 'c' || data[h3+2] != 'g' || data[h3+3] != 'd')
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return NULL;
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if (data[h3+8] != 'Q' || data[h3+9] != 'N' || data[h3+10] != 'T' || data[h3+11] != '\0')
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return NULL;
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return data + h3 + 8;
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}
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bool dcf_checkfmt(const uint8_t *data)
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{
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return !strncmp((const char*)data, "dcf\x20", 4);
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}
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void dcf_get_metrics(const uint8_t *data, possibly_unused size_t size, struct cg_metrics *m)
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{
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if (!(data = dcf_get_qnt(data)))
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return;
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qnt_get_metrics(data, m);
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}
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void dcf_extract(const uint8_t *data, possibly_unused size_t size, struct cg *cg)
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{
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if (!(data = dcf_get_qnt(data)))
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return;
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qnt_extract(data, cg);
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}
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