mirror of
https://github.com/UberGames/GtkRadiant.git
synced 2024-11-23 04:12:06 +00:00
9998050654
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/branches/ZeroRadiant@183 8a3a26a2-13c4-0310-b231-cf6edde360e5
1149 lines
24 KiB
C
1149 lines
24 KiB
C
/*
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Copyright (C) 1999-2007 id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant 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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GtkRadiant 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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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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// To do
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// Sound error handling (when sound too short)
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// rle b4 huffing
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// adpcm encoding of sound
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#if 0
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#include "qdata.h"
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#include "flex.h"
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#include "fc.h"
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#include "adpcm.h"
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#define MIN_REPT 15
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#define MAX_REPT 0
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#define HUF_TOKENS (256 + MAX_REPT)
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#define BLOCKSIZE 8
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#define M_PI 3.14159265358979323846 // matches value in gcc v2 math.h
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#define SQRT2 1.414213562
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typedef struct hnode_s
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{
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int count;
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qboolean used;
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int children[2];
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} hnode_t;
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typedef struct
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{
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int rate;
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int width;
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int channels;
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int loopstart;
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int samples;
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int dataofs; // chunk starts this many bytes from file start
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} wavinfo_t;
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// These weren`t picked out my ass....
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// They were defined at http://www.rahul.net/jfm/dct.html
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// However, I think he plucked them out of his ass.....
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float Quantise[BLOCKSIZE * BLOCKSIZE];
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float LUT_Quantise[BLOCKSIZE * BLOCKSIZE] =
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{
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16.0F/16.0F, 11.0F/16.0F, 10.0F/16.0F, 16.0F/16.0F, 24.0F/16.0F, 40.0F/16.0F, 51.0F/16.0F, 61.0F/16.0F,
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12.0F/16.0F, 13.0F/16.0F, 14.0F/16.0F, 19.0F/16.0F, 26.0F/16.0F, 58.0F/16.0F, 60.0F/16.0F, 55.0F/16.0F,
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14.0F/16.0F, 13.0F/16.0F, 16.0F/16.0F, 24.0F/16.0F, 40.0F/16.0F, 57.0F/16.0F, 69.0F/16.0F, 56.0F/16.0F,
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14.0F/16.0F, 17.0F/16.0F, 22.0F/16.0F, 29.0F/16.0F, 51.0F/16.0F, 87.0F/16.0F, 80.0F/16.0F, 62.0F/16.0F,
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18.0F/16.0F, 22.0F/16.0F, 37.0F/16.0F, 56.0F/16.0F, 68.0F/16.0F,109.0F/16.0F,103.0F/16.0F, 77.0F/16.0F,
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24.0F/16.0F, 35.0F/16.0F, 55.0F/16.0F, 64.0F/16.0F, 81.0F/16.0F,104.0F/16.0F,113.0F/16.0F, 92.0F/16.0F,
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49.0F/16.0F, 64.0F/16.0F, 78.0F/16.0F, 87.0F/16.0F,103.0F/16.0F,121.0F/16.0F,120.0F/16.0F,101.0F/16.0F,
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72.0F/16.0F, 92.0F/16.0F, 95.0F/16.0F, 98.0F/16.0F,112.0F/16.0F,100.0F/16.0F,103.0F/16.0F, 99.0F/16.0F
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};
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int LUT_ZZ[BLOCKSIZE * BLOCKSIZE] =
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{
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0,
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1, 8,
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16, 9, 2,
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3, 10, 17, 24,
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32, 25, 18, 11, 4,
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5, 12, 19, 26, 33, 40,
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48, 41, 34, 27, 20, 13, 6,
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7, 14, 21, 28, 35, 42, 49, 56,
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57, 50, 43, 36, 29, 22, 15,
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23, 30, 37, 44, 51, 58,
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59, 52, 45, 38, 31,
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39, 46, 53, 60,
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61, 54, 47,
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55, 62,
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63
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};
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char base[32];
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byte *soundtrack;
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byte scaled[256][HUF_TOKENS];
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unsigned int charbits1[256][HUF_TOKENS];
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int charbitscount1[256][HUF_TOKENS];
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hnode_t hnodes1[256][HUF_TOKENS * 2];
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int numhnodes1[256];
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int order0counts[256];
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int numhnodes;
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hnode_t hnodes[512];
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unsigned charbits[256];
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int charbitscount[256];
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CineHead_t cinehead;
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byte *data_p;
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byte *iff_end;
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byte *last_chunk;
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byte *iff_data;
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int iff_chunk_len;
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float dctbase[BLOCKSIZE][BLOCKSIZE];
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float red[BLOCKSIZE * BLOCKSIZE];
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float green[BLOCKSIZE * BLOCKSIZE];
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float blue[BLOCKSIZE * BLOCKSIZE];
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float temp[BLOCKSIZE * BLOCKSIZE];
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wavinfo_t wavinfo;
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adpcm_t adpcm;
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/*
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===============================================================================
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WAV loading
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===============================================================================
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*/
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/* Intel ADPCM step variation table */
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static int indexTable[16] =
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{
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-1, -1, -1, -1, 2, 4, 6, 8,
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-1, -1, -1, -1, 2, 4, 6, 8,
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};
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static int stepsizeTable[89] =
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{
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7, 8, 9, 10, 11, 12, 13, 14, 16, 17,
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19, 21, 23, 25, 28, 31, 34, 37, 41, 45,
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50, 55, 60, 66, 73, 80, 88, 97, 107, 118,
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130, 143, 157, 173, 190, 209, 230, 253, 279, 307,
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337, 371, 408, 449, 494, 544, 598, 658, 724, 796,
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876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066,
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2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358,
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5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
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15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767
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};
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#if 0
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static void adpcm_decoder(char *indata, short *outdata, int len, adpcm_state_t *state)
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{
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signed char *inp; /* Input buffer pointer */
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short *outp; /* output buffer pointer */
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int sign; /* Current adpcm sign bit */
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int delta; /* Current adpcm output value */
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int step; /* Stepsize */
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int valpred; /* Predicted value */
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int vpdiff; /* Current change to valpred */
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int index; /* Current step change index */
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int inputbuffer; /* place to keep next 4-bit value */
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int bufferstep; /* toggle between inputbuffer/input */
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outp = outdata;
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inp = (signed char *)indata;
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valpred = state->valprev;
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index = state->index;
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step = stepsizeTable[index];
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bufferstep = 0;
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for(; len > 0; len--)
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{
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/* Step 1 - get the delta value */
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if (bufferstep)
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delta = inputbuffer & 0xf;
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else
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{
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inputbuffer = *inp++;
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delta = (inputbuffer >> 4) & 0xf;
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}
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bufferstep = !bufferstep;
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/* Step 2 - Find new index value (for later) */
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index += indexTable[delta];
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if(index < 0)
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index = 0;
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if(index > 88)
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index = 88;
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/* Step 3 - Separate sign and magnitude */
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sign = delta & 8;
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delta = delta & 7;
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/* Step 4 - Compute difference and new predicted value */
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/*
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** Computes 'vpdiff = (delta+0.5)*step/4', but see comment
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** in adpcm_coder.
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*/
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vpdiff = step >> 3;
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if(delta & 4)
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vpdiff += step;
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if(delta & 2)
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vpdiff += step>>1;
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if(delta & 1)
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vpdiff += step>>2;
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if (sign)
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valpred -= vpdiff;
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else
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valpred += vpdiff;
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/* Step 5 - clamp output value */
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if (valpred > 32767)
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valpred = 32767;
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else if (valpred < -32768)
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valpred = -32768;
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/* Step 6 - Update step value */
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step = stepsizeTable[index];
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/* Step 7 - Output value */
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*outp++ = valpred;
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}
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state->valprev = valpred;
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state->index = index;
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}
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#endif
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void adpcm_coder(short *inp, adpcm_t *adpcm)
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{
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int val; /* Current input sample value */
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int sign; /* Current adpcm sign bit */
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int delta; /* Current adpcm output value */
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int diff; /* Difference between val and valprev */
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int step; /* Stepsize */
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int valpred; /* Predicted output value */
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int vpdiff; /* Current change to valpred */
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int index; /* Current step change index */
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int outputbuffer; /* place to keep previous 4-bit value */
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int bufferstep; /* toggle between outputbuffer/output */
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adpcm_state_t *state;
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char *outp;
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int len;
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state = &adpcm->state;
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len = state->count;
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outp = adpcm->adpcm;
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valpred = state->in_valprev;
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index = state->in_index;
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step = stepsizeTable[index];
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bufferstep = 1;
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while(len--)
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{
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val = *inp++;
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/* Step 1 - compute difference with previous value */
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diff = val - valpred;
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sign = (diff < 0) ? 8 : 0;
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if (sign)
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diff = -diff;
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/* Step 2 - Divide and clamp */
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/* Note:
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** This code *approximately* computes:
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** delta = diff*4/step;
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** vpdiff = (delta+0.5)*step/4;
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** but in shift step bits are dropped. The net result of this is
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** that even if you have fast mul/div hardware you cannot put it to
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** good use since the fixup would be too expensive.
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*/
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delta = 0;
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vpdiff = (step >> 3);
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if (diff >= step)
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{
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delta = 4;
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diff -= step;
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vpdiff += step;
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}
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step >>= 1;
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if (diff >= step)
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{
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delta |= 2;
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diff -= step;
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vpdiff += step;
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}
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step >>= 1;
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if (diff >= step)
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{
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delta |= 1;
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vpdiff += step;
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}
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/* Step 3 - Update previous value */
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if (sign)
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valpred -= vpdiff;
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else
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valpred += vpdiff;
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/* Step 4 - Clamp previous value to 16 bits */
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if (valpred > 32767)
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valpred = 32767;
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else if (valpred < -32768)
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valpred = -32768;
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/* Step 5 - Assemble value, update index and step values */
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delta |= sign;
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index += indexTable[delta];
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if (index < 0)
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index = 0;
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if (index > 88)
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index = 88;
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step = stepsizeTable[index];
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/* Step 6 - Output value */
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if (bufferstep)
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outputbuffer = (delta << 4) & 0xf0;
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else
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*outp++ = (delta & 0x0f) | outputbuffer;
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bufferstep = !bufferstep;
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}
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/* Output last step, if needed */
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if(!bufferstep)
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*outp++ = outputbuffer;
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state->out_valprev = valpred;
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state->out_index = index;
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}
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void FindNextChunk(char *name)
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{
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while(1)
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{
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data_p = last_chunk;
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if(data_p >= iff_end)
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{ // didn't find the chunk
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data_p = NULL;
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return;
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}
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data_p += 4;
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iff_chunk_len = *(long *)data_p;
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data_p += 4;
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if(iff_chunk_len < 0)
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{
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data_p = NULL;
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return;
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}
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data_p -= 8;
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last_chunk = data_p + 8 + ((iff_chunk_len + 1) & ~1);
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if (!strncmp(data_p, name, 4))
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return;
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}
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}
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void FindChunk(char *name)
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{
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last_chunk = iff_data;
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FindNextChunk (name);
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}
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void DumpChunks(void)
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{
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char str[5];
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str[4] = 0;
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data_p = iff_data;
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do
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{
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memcpy (str, data_p, 4);
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data_p += 4;
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iff_chunk_len = *(long *)data_p;
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data_p += 4;
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printf ("0x%x : %s (%d)\n", (int)(data_p - 4), str, iff_chunk_len);
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data_p += (iff_chunk_len + 1) & ~1;
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}
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while(data_p < iff_end);
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}
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/*
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============
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GetWavinfo
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============
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*/
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wavinfo_t GetWavinfo (char *name, byte *wav, int wavlength)
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{
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wavinfo_t info;
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int i;
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int format;
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int samples;
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memset(&info, 0, sizeof(info));
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if (!wav)
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return(info);
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iff_data = wav;
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iff_end = wav + wavlength;
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// find "RIFF" chunk
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FindChunk("RIFF");
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if (!(data_p && !strncmp(data_p + 8, "WAVE", 4)))
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{
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printf("Missing RIFF/WAVE chunks\n");
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return(info);
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}
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// get "fmt " chunk
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iff_data = data_p + 12;
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FindChunk("fmt ");
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if(!data_p)
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{
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printf("Missing fmt chunk\n");
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return(info);
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}
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data_p += 8;
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format = *(short *)data_p;
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data_p += 2;
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if (format != 1)
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{
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printf("Microsoft PCM format only\n");
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return(info);
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}
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info.channels = *(short *)data_p;
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data_p += 2;
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info.rate = *(long *)data_p;
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data_p += 4;
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data_p += 6;
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info.width = *(short *)data_p / 8;
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data_p += 2;
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|
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// get cue chunk
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FindChunk("cue ");
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if(data_p)
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{
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data_p += 32;
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info.loopstart = *(long *)data_p;
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data_p += 4;
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// if the next chunk is a LIST chunk, look for a cue length marker
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FindNextChunk ("LIST");
|
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if(data_p)
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{
|
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// this is not a proper parse, but it works with cooledit...
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if (!strncmp (data_p + 28, "mark", 4))
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{
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data_p += 24;
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i = *(long *)data_p; // samples in loop
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data_p += 4;
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info.samples = info.loopstart + i;
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}
|
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}
|
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}
|
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else
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info.loopstart = -1;
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|
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// find data chunk
|
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FindChunk("data");
|
|
if (!data_p)
|
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{
|
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printf("Missing data chunk\n");
|
|
return(info);
|
|
}
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|
|
data_p += 4;
|
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samples = *(long *)data_p;
|
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data_p += 4;
|
|
|
|
if (info.samples)
|
|
{
|
|
if(samples < info.samples)
|
|
Error ("Sound %s has a bad loop length", name);
|
|
}
|
|
else
|
|
info.samples = samples;
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|
|
|
info.dataofs = data_p - wav;
|
|
return(info);
|
|
}
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|
|
// ==============
|
|
// LoadSoundtrack
|
|
// ==============
|
|
|
|
void LoadSoundtrack()
|
|
{
|
|
char name[1024];
|
|
FILE *f;
|
|
int len;
|
|
|
|
soundtrack = NULL;
|
|
sprintf (name, "%svideo/%s/%s.wav", gamedir, base, base);
|
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printf ("\nLoading sound : %s\n", name);
|
|
f = fopen (name, "rb");
|
|
if (!f)
|
|
{
|
|
printf ("\nNo soundtrack for %s\n", base);
|
|
return;
|
|
}
|
|
len = Q_filelength(f);
|
|
soundtrack = SafeMalloc(len, "LoadSoundtrack");
|
|
fread(soundtrack, 1, len, f);
|
|
fclose(f);
|
|
|
|
wavinfo = GetWavinfo(name, soundtrack, len);
|
|
adpcm.state.out_valprev = 0;
|
|
adpcm.state.out_index = 0;
|
|
}
|
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|
|
// ==================
|
|
// WriteSound
|
|
// ==================
|
|
|
|
int WriteSound(FILE *output, int frame, int numframes)
|
|
{
|
|
int start, end;
|
|
int count;
|
|
int empty = 0;
|
|
int width;
|
|
char *work;
|
|
|
|
width = wavinfo.width * wavinfo.channels;
|
|
start = ((frame * wavinfo.rate / 14) + 31) & 0xffffffe0; // start sample
|
|
end = (((frame + numframes) * wavinfo.rate / 14) + 31) & 0xffffffe0; // end sample
|
|
count = end - start;
|
|
|
|
work = soundtrack + wavinfo.dataofs + (start * width);
|
|
adpcm.state.count = count * wavinfo.channels; // Number of samples
|
|
adpcm.state.in_valprev = adpcm.state.out_valprev;
|
|
adpcm.state.in_index = adpcm.state.out_index;
|
|
adpcm_coder((short *)work, &adpcm);
|
|
WriteHeader(output, FC_SOUND_22KMADPCM, FC_ADPCM_VERSION, (adpcm.state.count / 2) + sizeof(adpcm_state_t), (char *)&adpcm);
|
|
return(count / 2);
|
|
}
|
|
// ==============================
|
|
// Basic run length encoder
|
|
// ==============================
|
|
|
|
char *RLEZZ(char *in, char *out)
|
|
{
|
|
int srun;
|
|
char count;
|
|
int idx = 0;
|
|
|
|
while(idx < 64)
|
|
{
|
|
srun = idx; // Start of run
|
|
|
|
while(idx < 63)
|
|
{
|
|
if(in[LUT_ZZ[idx]] != in[LUT_ZZ[idx + 1]])
|
|
break;
|
|
idx++;
|
|
}
|
|
count = (char)(idx - srun); // count of repeated bytes
|
|
|
|
if(!count)
|
|
{
|
|
while(idx < 63)
|
|
{
|
|
if(in[LUT_ZZ[idx]] == in[LUT_ZZ[idx + 1]])
|
|
break;
|
|
idx++;
|
|
}
|
|
if(idx == 63)
|
|
idx++;
|
|
|
|
count = (char)(idx - srun); // count of unique bytes
|
|
*out++ = count;
|
|
while(count--)
|
|
*out++ = in[LUT_ZZ[srun++]];
|
|
}
|
|
else
|
|
{
|
|
*out++ = -(count + 1);
|
|
*out++ = in[LUT_ZZ[idx]];
|
|
idx++;
|
|
}
|
|
}
|
|
return(out);
|
|
}
|
|
|
|
// ==============================
|
|
// Discrete Cosine Transformation
|
|
// ==============================
|
|
|
|
void init_base(float quant)
|
|
{
|
|
int y, x;
|
|
|
|
for(y = 0; y < BLOCKSIZE; y++)
|
|
for(x = 0; x < BLOCKSIZE; x++)
|
|
{
|
|
if(y == 0)
|
|
dctbase[y][x] = 1;
|
|
else
|
|
dctbase[y][x] = SQRT2 * cos(((x * 2 + 1) * y * M_PI) / (BLOCKSIZE * 2));
|
|
}
|
|
|
|
for(y = 0; y < BLOCKSIZE * BLOCKSIZE; y++)
|
|
Quantise[y] = LUT_Quantise[y] / quant;
|
|
}
|
|
|
|
void SplitComponents(byte *src, int width, int height)
|
|
{
|
|
int i, j;
|
|
float *tr = red;
|
|
float *tg = green;
|
|
float *tb = blue;
|
|
|
|
for(i = 0; i < BLOCKSIZE; i++, src += (width - BLOCKSIZE) * 4)
|
|
for(j = 0; j < BLOCKSIZE; j++)
|
|
{
|
|
*tr++ = ((float)*src++) - 128.0F;
|
|
*tg++ = ((float)*src++) - 128.0F;
|
|
*tb++ = ((float)*src++) - 128.0F;
|
|
src++;
|
|
}
|
|
}
|
|
|
|
void transferH(float *src, float *dst)
|
|
{
|
|
int y, dx, dy;
|
|
float sum;
|
|
float *work;
|
|
|
|
for(y = 0; y < BLOCKSIZE; y++, src += BLOCKSIZE)
|
|
{
|
|
for(dy = 0; dy < BLOCKSIZE; dy++)
|
|
{
|
|
sum = 0;
|
|
work = src;
|
|
for(dx = 0; dx < BLOCKSIZE; dx++, work++)
|
|
sum += dctbase[dy][dx] * *work;
|
|
|
|
*dst++ = sum / BLOCKSIZE;
|
|
}
|
|
}
|
|
}
|
|
|
|
void transferV(float *src, float *dst)
|
|
{
|
|
int x, dy, fy;
|
|
float sum;
|
|
float *work;
|
|
|
|
for(x = 0; x < BLOCKSIZE; x++, src++, dst++)
|
|
{
|
|
for(fy = 0; fy < BLOCKSIZE; fy++)
|
|
{
|
|
sum = 0;
|
|
work = src;
|
|
for(dy = 0; dy < BLOCKSIZE; dy++, work += BLOCKSIZE)
|
|
sum += dctbase[fy][dy] * *work;
|
|
|
|
dst[fy * BLOCKSIZE] = sum / BLOCKSIZE;
|
|
}
|
|
}
|
|
}
|
|
|
|
char *Combine(byte *dst, float *p, float *q)
|
|
{
|
|
int i, j;
|
|
byte rlesrc[BLOCKSIZE * BLOCKSIZE];
|
|
int c;
|
|
byte *work;
|
|
|
|
work = rlesrc;
|
|
for(j = 0; j < BLOCKSIZE; j++)
|
|
for(i = 0; i < BLOCKSIZE; i++)
|
|
{
|
|
c = (int)((*p++ / *q++) + 128.5F);
|
|
c -= 128;
|
|
|
|
if(c < -128)
|
|
c = -128;
|
|
if(c > 127)
|
|
c = 127;
|
|
|
|
*work++ = (char)c;
|
|
}
|
|
|
|
dst = RLEZZ(rlesrc, dst);
|
|
return(dst);
|
|
}
|
|
|
|
char *CombineComponents(char *dst, int width, int height)
|
|
{
|
|
dst = Combine(dst, red, Quantise);
|
|
dst = Combine(dst, green, Quantise);
|
|
dst = Combine(dst, blue, Quantise);
|
|
return(dst);
|
|
}
|
|
|
|
void DCT(cblock_t *out, cblock_t in, int width, int height)
|
|
{
|
|
int x, y;
|
|
char *cursrc;
|
|
char *curdst;
|
|
|
|
curdst = out->data;
|
|
for(y = 0; y < height; y += BLOCKSIZE)
|
|
for(x = 0; x < width; x += BLOCKSIZE)
|
|
{
|
|
cursrc = in.data + ((y * width) + x) * 4;
|
|
SplitComponents(cursrc, width, height);
|
|
transferH(red, temp);
|
|
transferV(temp, red);
|
|
transferH(green, temp);
|
|
transferV(temp, green);
|
|
transferH(blue, temp);
|
|
transferV(temp, blue);
|
|
curdst = CombineComponents(curdst, width, height);
|
|
}
|
|
out->count = curdst - out->data;
|
|
}
|
|
|
|
// ==================
|
|
// BuildChars1
|
|
// ==================
|
|
|
|
void BuildChars1(int prev, int nodenum, unsigned bits, int bitcount)
|
|
{
|
|
hnode_t *node;
|
|
|
|
if(nodenum < HUF_TOKENS)
|
|
{
|
|
if (bitcount > 32)
|
|
Error("bitcount > 32");
|
|
charbits1[prev][nodenum] = bits;
|
|
charbitscount1[prev][nodenum] = bitcount;
|
|
return;
|
|
}
|
|
|
|
node = &hnodes1[prev][nodenum];
|
|
bits <<= 1;
|
|
BuildChars1(prev, node->children[0], bits, bitcount+1);
|
|
bits |= 1;
|
|
BuildChars1(prev, node->children[1], bits, bitcount+1);
|
|
}
|
|
|
|
// ==================
|
|
// SmallestNode1
|
|
// ==================
|
|
|
|
int SmallestNode1(hnode_t *hnodes, int numhnodes)
|
|
{
|
|
int i;
|
|
int best, bestnode;
|
|
|
|
best = 99999999;
|
|
bestnode = -1;
|
|
for(i = 0; i < numhnodes; i++)
|
|
{
|
|
if(hnodes[i].used)
|
|
continue;
|
|
if(!hnodes[i].count)
|
|
continue;
|
|
if(hnodes[i].count < best)
|
|
{
|
|
best = hnodes[i].count;
|
|
bestnode = i;
|
|
}
|
|
}
|
|
|
|
if (bestnode == -1)
|
|
return(-1);
|
|
|
|
hnodes[bestnode].used = true;
|
|
return(bestnode);
|
|
}
|
|
|
|
// ==================
|
|
// BuildTree1
|
|
// ==================
|
|
|
|
void BuildTree1(int prev)
|
|
{
|
|
hnode_t *node, *nodebase;
|
|
int numhnodes;
|
|
|
|
// build the nodes
|
|
numhnodes = HUF_TOKENS;
|
|
nodebase = hnodes1[prev];
|
|
while(1)
|
|
{
|
|
node = &nodebase[numhnodes];
|
|
|
|
// pick two lowest counts
|
|
node->children[0] = SmallestNode1 (nodebase, numhnodes);
|
|
if (node->children[0] == -1)
|
|
break; // no more
|
|
|
|
node->children[1] = SmallestNode1 (nodebase, numhnodes);
|
|
if (node->children[1] == -1)
|
|
break;
|
|
|
|
node->count = nodebase[node->children[0]].count +
|
|
nodebase[node->children[1]].count;
|
|
numhnodes++;
|
|
}
|
|
numhnodes1[prev] = numhnodes-1;
|
|
BuildChars1 (prev, numhnodes-1, 0, 0);
|
|
}
|
|
|
|
// ==================
|
|
// Huffman1_Count
|
|
// ==================
|
|
|
|
void Huffman1_Count(cblock_t in)
|
|
{
|
|
int i;
|
|
int prev;
|
|
int v;
|
|
int rept;
|
|
|
|
prev = 0;
|
|
for(i = 0; i < in.count; i++)
|
|
{
|
|
v = in.data[i];
|
|
order0counts[v]++;
|
|
hnodes1[prev][v].count++;
|
|
prev = v;
|
|
|
|
for(rept = 1; (i + rept < in.count) && (rept < MAX_REPT); rept++)
|
|
if(in.data[i+rept] != v)
|
|
break;
|
|
if(rept > MIN_REPT)
|
|
{
|
|
hnodes1[prev][255 + rept].count++;
|
|
i += rept - 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// ==================
|
|
// Huffman1_Build
|
|
// ==================
|
|
|
|
void Huffman1_Build()
|
|
{
|
|
int i, j, v;
|
|
int max;
|
|
int total;
|
|
|
|
for(i = 0; i < 256; i++)
|
|
{
|
|
// normalize and save the counts
|
|
max = 0;
|
|
for (j = 0; j < HUF_TOKENS; j++)
|
|
{
|
|
if (hnodes1[i][j].count > max)
|
|
max = hnodes1[i][j].count;
|
|
}
|
|
if (max == 0)
|
|
max = 1;
|
|
total = 0;
|
|
// easy to overflow 32 bits here!
|
|
for(j = 0; j < HUF_TOKENS; j++)
|
|
{
|
|
v = (hnodes1[i][j].count * (double) 255 + max - 1) / max;
|
|
if (v > 255)
|
|
Error ("v > 255");
|
|
scaled[i][j] = hnodes1[i][j].count = v;
|
|
if (v)
|
|
total++;
|
|
}
|
|
if (total == 1)
|
|
{ // must have two tokens
|
|
if (!scaled[i][0])
|
|
scaled[i][0] = hnodes1[i][0].count = 1;
|
|
else
|
|
scaled[i][1] = hnodes1[i][1].count = 1;
|
|
}
|
|
BuildTree1 (i);
|
|
}
|
|
}
|
|
|
|
// ==================
|
|
// Huffman1
|
|
// Order 1 compression with pre-built table
|
|
// ==================
|
|
|
|
cblock_t Huffman1(cblock_t in)
|
|
{
|
|
int i;
|
|
int outbits, c;
|
|
unsigned bits;
|
|
byte *out_p;
|
|
cblock_t out;
|
|
int prev;
|
|
int v;
|
|
int rept;
|
|
|
|
out_p = out.data = SafeMalloc((in.count * 2) + 1024 + 4, "Huffman");
|
|
memset(out_p, 0, (in.count * 2) + 1024 + 4);
|
|
|
|
// leave space for compressed count
|
|
out_p += 4;
|
|
// write count
|
|
*(long *)out_p = in.count;
|
|
out_p += 4;
|
|
|
|
// write bits
|
|
outbits = 0;
|
|
prev = 0;
|
|
for(i = 0; i < in.count; i++)
|
|
{
|
|
v = in.data[i];
|
|
|
|
c = charbitscount1[prev][v];
|
|
bits = charbits1[prev][v];
|
|
if (!c)
|
|
Error ("!bits");
|
|
while (c)
|
|
{
|
|
c--;
|
|
if (bits & (1 << c))
|
|
out_p[outbits>>3] |= 1 << (outbits & 7);
|
|
outbits++;
|
|
}
|
|
|
|
prev = v;
|
|
// check for repeat encodes
|
|
for(rept = 1; (i + rept < in.count) && (rept < MAX_REPT); rept++)
|
|
if(in.data[i + rept] != v)
|
|
break;
|
|
if (rept > MIN_REPT)
|
|
{
|
|
c = charbitscount1[prev][255 + rept];
|
|
bits = charbits1[prev][255 + rept];
|
|
if (!c)
|
|
Error ("!bits");
|
|
while (c)
|
|
{
|
|
c--;
|
|
if(bits & (1 << c))
|
|
out_p[outbits >> 3] |= 1 << (outbits & 7);
|
|
outbits++;
|
|
}
|
|
i += rept - 1;
|
|
}
|
|
}
|
|
out_p += (outbits + 7) >> 3;
|
|
out.count = out_p - out.data;
|
|
|
|
out_p = out.data;
|
|
*(long *)out_p = out.count;
|
|
return(out);
|
|
}
|
|
// ===================
|
|
// LoadFrame
|
|
// ===================
|
|
|
|
void LoadFrame(cblock_t *out, char *base, int frame)
|
|
{
|
|
cblock_t in;
|
|
int width, height;
|
|
char name[1024];
|
|
FILE *f;
|
|
|
|
in.data = NULL;
|
|
in.count = -1;
|
|
sprintf (name, "%svideo/%s/%s%04i.tga", gamedir, base, base, frame);
|
|
|
|
f = fopen(name, "rb");
|
|
if (!f)
|
|
{
|
|
out->data = NULL;
|
|
return;
|
|
}
|
|
fclose (f);
|
|
|
|
LoadTGA(name, &in.data, &width, &height);
|
|
if((width != cinehead.Width) || (height != cinehead.Height))
|
|
{
|
|
free(in.data);
|
|
printf("Invalid picture size\n");
|
|
out->data = NULL;
|
|
return;
|
|
}
|
|
out->data = SafeMalloc(width * height * 3, "LoadFrame"); // rle could possibly expand file so this not 100% safe (however DCT should force a lot of compression)
|
|
DCT(out, in, width, height);
|
|
free(in.data);
|
|
}
|
|
|
|
// ==================================
|
|
// Cmd_Video
|
|
//
|
|
// video <directory> <framedigits>
|
|
// ==================================
|
|
|
|
void Cmd_Video()
|
|
{
|
|
char savename[256];
|
|
char name[256];
|
|
FILE *output;
|
|
int frame;
|
|
int width, height;
|
|
cblock_t in, huffman;
|
|
int size;
|
|
float dctconst;
|
|
int maxsize, ssize;
|
|
int min_rle_size, warnings;
|
|
int ave_image, ave_sound;
|
|
|
|
GetScriptToken(false);
|
|
strcpy(base, token);
|
|
if (g_release)
|
|
return;
|
|
|
|
GetScriptToken(false);
|
|
dctconst = atof(token);
|
|
GetScriptToken(false);
|
|
maxsize = atoi(token);
|
|
|
|
sprintf (savename, "%svideo/%s.cin", gamedir, base);
|
|
|
|
// clear stuff
|
|
memset(charbits1, 0, sizeof(charbits1));
|
|
memset(charbitscount1, 0, sizeof(charbitscount1));
|
|
memset(hnodes1, 0, sizeof(hnodes1));
|
|
memset(numhnodes1, 0, sizeof(numhnodes1));
|
|
memset(order0counts, 0, sizeof(order0counts));
|
|
|
|
// load the entire sound wav file if present
|
|
LoadSoundtrack();
|
|
|
|
cinehead.SndRate = wavinfo.rate;
|
|
cinehead.SndWidth = wavinfo.width;
|
|
cinehead.SndChannels = wavinfo.channels;
|
|
|
|
sprintf(name, "%svideo/%s/%s0000.tga", gamedir, base, base);
|
|
printf("Loading sequence : %s\n", name);
|
|
printf("DCT constant : %f\n", dctconst);
|
|
|
|
LoadTGA (name, NULL, &width, &height);
|
|
|
|
output = fopen (savename, "wb");
|
|
if (!output)
|
|
Error ("Can't open %s", savename);
|
|
|
|
if((width % BLOCKSIZE) || (height % BLOCKSIZE))
|
|
Error("Width and height must be a multiple of %d", BLOCKSIZE);
|
|
|
|
cinehead.Width = width;
|
|
cinehead.Height = height;
|
|
init_base(dctconst);
|
|
|
|
// build the dictionary
|
|
printf("Counting : ");
|
|
min_rle_size = 0;
|
|
for (frame = 0; ; frame++)
|
|
{
|
|
printf(".");
|
|
LoadFrame(&in, base, frame);
|
|
if(!in.data)
|
|
break;
|
|
Huffman1_Count(in);
|
|
if(in.count > min_rle_size)
|
|
min_rle_size = in.count;
|
|
free(in.data);
|
|
}
|
|
printf ("\n");
|
|
cinehead.NumFrames = frame;
|
|
printf("Num Frames : %d\n", frame);
|
|
cinehead.MaxRleSize = (min_rle_size + 0x1f) & 0xfffffe0;
|
|
cinehead.MaxSndSize = ((4 * wavinfo.rate * wavinfo.channels / 14) + 0x1f) & 0xffffffe0;
|
|
|
|
WriteHeader(output, FC_HEADER_NAME, FC_HEADER_VERSION, sizeof(CineHead_t), &cinehead);
|
|
|
|
// build nodes and write counts
|
|
Huffman1_Build();
|
|
WriteHeader(output, FC_HUFFBITS_NAME, FC_HUFFBITS_VERSION, sizeof(scaled), scaled);
|
|
WriteHeader(output, FC_QUANT_NAME, FC_QUANT_VERSION, sizeof(Quantise), Quantise);
|
|
|
|
ave_image = 0;
|
|
ave_sound = 0;
|
|
warnings = 0;
|
|
// compress it with the dictionary
|
|
if(soundtrack)
|
|
{
|
|
ssize = WriteSound(output, frame, 4);
|
|
ave_sound += ssize;
|
|
}
|
|
|
|
for (frame = 0; frame < cinehead.NumFrames; frame++)
|
|
{
|
|
// save some sound samples
|
|
printf ("Packing : ", frame);
|
|
LoadFrame(&in, base, frame);
|
|
|
|
// save the image
|
|
huffman = Huffman1(in);
|
|
printf ("%d bytes rle, %d bytes huffman", in.count, huffman.count);
|
|
size = (huffman.count + 3) & 0xfffffffc; // round up to longwords
|
|
if(size > maxsize)
|
|
{
|
|
printf(" ** WARNING **");
|
|
warnings++;
|
|
}
|
|
printf("\n");
|
|
ave_image += huffman.count;
|
|
|
|
WriteHeader(output, FC_IMAGE_NAME, FC_IMAGE_VERSION, size, huffman.data);
|
|
if(soundtrack)
|
|
{
|
|
ssize = WriteSound(output, frame + 4, 1);
|
|
ave_sound += ssize;
|
|
}
|
|
|
|
free (in.data);
|
|
free (huffman.data);
|
|
}
|
|
printf("\nTotal size: %d (headers + %d image + %d sound)\n", ftell(output), ave_image, ave_sound);
|
|
printf("Data rate : %d bytes per sec (image and sound)\n", (ave_image + ave_sound) / cinehead.NumFrames);
|
|
printf("Cin created ok with %d warnings.\n", warnings);
|
|
fclose (output);
|
|
|
|
if (soundtrack)
|
|
free (soundtrack);
|
|
}
|
|
#endif
|
|
|
|
void Cmd_Video()
|
|
{
|
|
}
|
|
|
|
// end
|
|
|