diff options
Diffstat (limited to 'dep/src/libmpq/wave.c')
-rw-r--r-- | dep/src/libmpq/wave.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/dep/src/libmpq/wave.c b/dep/src/libmpq/wave.c deleted file mode 100644 index 4f2b73ba27e..00000000000 --- a/dep/src/libmpq/wave.c +++ /dev/null @@ -1,250 +0,0 @@ -/* - * wave.c -- this file contains decompression methods used by mpq-tools - * to decompress wave files. - * - * Copyright (c) 2003-2007 Maik Broemme <mbroemme@plusserver.de> - * - * This source was adepted from the C++ version of wave.cpp included - * in stormlib. The C++ version belongs to the following authors: - * - * Ladislav Zezula <ladik@zezula.net> - * Tom Amigo <tomamigo@apexmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -/* generic includes. */ -#include <stdint.h> - -/* libmpq generic includes. */ -#include "wave.h" - -/* table necessary dor decompression. */ -static const uint32_t wave_table_1503f120[] = { - 0xFFFFFFFF, 0x00000000, 0xFFFFFFFF, 0x00000004, 0xFFFFFFFF, 0x00000002, 0xFFFFFFFF, 0x00000006, - 0xFFFFFFFF, 0x00000001, 0xFFFFFFFF, 0x00000005, 0xFFFFFFFF, 0x00000003, 0xFFFFFFFF, 0x00000007, - 0xFFFFFFFF, 0x00000001, 0xFFFFFFFF, 0x00000005, 0xFFFFFFFF, 0x00000003, 0xFFFFFFFF, 0x00000007, - 0xFFFFFFFF, 0x00000002, 0xFFFFFFFF, 0x00000004, 0xFFFFFFFF, 0x00000006, 0xFFFFFFFF, 0x00000008 -}; - -/* table necessary dor decompression. */ -static const uint32_t wave_table_1503f1a0[] = { - 0x00000007, 0x00000008, 0x00000009, 0x0000000A, 0x0000000B, 0x0000000C, 0x0000000D, 0x0000000E, - 0x00000010, 0x00000011, 0x00000013, 0x00000015, 0x00000017, 0x00000019, 0x0000001C, 0x0000001F, - 0x00000022, 0x00000025, 0x00000029, 0x0000002D, 0x00000032, 0x00000037, 0x0000003C, 0x00000042, - 0x00000049, 0x00000050, 0x00000058, 0x00000061, 0x0000006B, 0x00000076, 0x00000082, 0x0000008F, - 0x0000009D, 0x000000AD, 0x000000BE, 0x000000D1, 0x000000E6, 0x000000FD, 0x00000117, 0x00000133, - 0x00000151, 0x00000173, 0x00000198, 0x000001C1, 0x000001EE, 0x00000220, 0x00000256, 0x00000292, - 0x000002D4, 0x0000031C, 0x0000036C, 0x000003C3, 0x00000424, 0x0000048E, 0x00000502, 0x00000583, - 0x00000610, 0x000006AB, 0x00000756, 0x00000812, 0x000008E0, 0x000009C3, 0x00000ABD, 0x00000BD0, - 0x00000CFF, 0x00000E4C, 0x00000FBA, 0x0000114C, 0x00001307, 0x000014EE, 0x00001706, 0x00001954, - 0x00001BDC, 0x00001EA5, 0x000021B6, 0x00002515, 0x000028CA, 0x00002CDF, 0x0000315B, 0x0000364B, - 0x00003BB9, 0x000041B2, 0x00004844, 0x00004F7E, 0x00005771, 0x0000602F, 0x000069CE, 0x00007462, - 0x00007FFF -}; - -/* this function decompress a wave file, mono or stereo, 1500F230 offset. */ -int32_t libmpq__do_decompress_wave(uint8_t *out_buf, int32_t out_length, uint8_t *in_buf, int32_t in_length, int32_t channels) { - - /* some common variables. */ - byte_and_int16_t out; - byte_and_int16_t in; - uint32_t index; - int32_t nr_array1[2]; - int32_t nr_array2[2]; - uint32_t count = 0; - - /* end on input buffer. */ - uint8_t *in_end = in_buf + in_length; - - /* assign default values. */ - out.pb = out_buf; - in.pb = in_buf; - nr_array1[0] = 0x2C; - nr_array1[1] = 0x2C; - - /* increase. */ - in.pw++; - - /* 15007AD7 */ - for (count = 0; count < channels; count++) { - - /* some common variables. */ - int32_t temp; - - /* save pointer. */ - temp = *(int16_t *)in.pw++; - nr_array2[count] = temp; - - /* check if should break. */ - if (out_length < 2) { - return out.pb - out_buf; - } - - /* return values. */ - *out.pw++ = (uint16_t)temp; - out_length -= 2; - } - - /* decrease channels. */ - index = channels - 1; - - /* loop through input buffer until end reached. */ - while (in.pb < in_end) { - - /* save the byte. */ - uint8_t one_byte = *in.pb++; - - /* check how many channels and set index. */ - if (channels == 2) { - index = (index == 0) ? 1 : 0; - } - - /* 15007B25 - get one byte from input buffer. */ - if (one_byte & 0x80) { - - /* 15007B32 */ - switch (one_byte & 0x7F) { - case 0: - - /* 15007B8E */ - if (nr_array1[index] != 0) { - nr_array1[index]--; - } - - /* check if should break. */ - if (out_length < 2) { - break; - } - - /* return values. */ - *out.pw++ = (uint16_t)nr_array2[index]; - out_length -= 2; - - /* continue loop. */ - continue; - case 1: - /* 15007B72 and EBX. */ - nr_array1[index] += 8; - - /* check index. */ - if (nr_array1[index] > 0x58) { - nr_array1[index] = 0x58; - } - - /* check how many channels and set index. */ - if (channels == 2) { - index = (index == 0) ? 1 : 0; - } - - /* continue loop. */ - continue; - case 2: - - /* nothing todo, so continue. */ - continue; - default: - - /* decrease index. */ - nr_array1[index] -= 8; - - /* check index. */ - if (nr_array1[index] < 0) { - nr_array1[index] = 0; - } - - /* check if two channels left. */ - if (channels != 2) { - continue; - } - index = (index == 0) ? 1 : 0; - - /* continue loop. */ - continue; - } - } else { - - /* EDI */ - uint32_t temp1 = wave_table_1503f1a0[nr_array1[index]]; - - /* ESI */ - uint32_t temp2 = temp1 >> in_buf[1]; - - /* ECX */ - int32_t temp3 = nr_array2[index]; - - /* EBX = one byte. */ - if (one_byte & 0x01) { - temp2 += (temp1 >> 0); - } - if (one_byte & 0x02) { - temp2 += (temp1 >> 1); - } - if (one_byte & 0x04) { - temp2 += (temp1 >> 2); - } - if (one_byte & 0x08) { - temp2 += (temp1 >> 3); - } - if (one_byte & 0x10) { - temp2 += (temp1 >> 4); - } - if (one_byte & 0x20) { - temp2 += (temp1 >> 5); - } - if (one_byte & 0x40) { - temp3 -= temp2; - if (temp3 <= (int32_t)0xFFFF8000) { - temp3 = (int32_t)0xFFFF8000; - } - } else { - temp3 += temp2; - if (temp3 >= 0x7FFF) { - temp3 = 0x7FFF; - } - } - - /* restore index. */ - nr_array2[index] = temp3; - - /* check if should break. */ - if (out_length < 2) { - break; - } - - /* assign values. */ - temp2 = nr_array1[index]; - one_byte &= 0x1F; - *out.pw++ = (uint16_t)temp3; - out_length -= 2; - temp2 += wave_table_1503f120[one_byte]; - nr_array1[index] = temp2; - - /* check index. */ - if (nr_array1[index] < 0) { - nr_array1[index] = 0; - } else { - - /* check index. */ - if (nr_array1[index] > 0x58) { - nr_array1[index] = 0x58; - } - } - } - } - - /* return copied bytes. */ - return (out.pb - out_buf); -} |