mirror of
https://github.com/UberGames/GtkRadiant.git
synced 2024-11-26 22:01:38 +00:00
8037810110
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/branches/ZeroRadiant@177 8a3a26a2-13c4-0310-b231-cf6edde360e5
1238 lines
23 KiB
C
1238 lines
23 KiB
C
#include "qdata.h"
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#include "inout.h"
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byte *soundtrack;
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char base[32];
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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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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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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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int samplecounts[0x10000];
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wavinfo_t wavinfo;
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short GetLittleShort(void)
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{
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short val = 0;
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val = *data_p;
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val = val + (*(data_p+1)<<8);
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data_p += 2;
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return val;
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}
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int GetLittleLong(void)
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{
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int val = 0;
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val = *data_p;
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val = val + (*(data_p+1)<<8);
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val = val + (*(data_p+2)<<16);
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val = val + (*(data_p+3)<<24);
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data_p += 4;
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return val;
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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 = GetLittleLong();
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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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// if (iff_chunk_len > 1024*1024)
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// Sys_Error ("FindNextChunk: %i length is past the 1 meg sanity limit", iff_chunk_len);
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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 = GetLittleLong();
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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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} 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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// DumpChunks ();
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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 = GetLittleShort();
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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 = GetLittleShort();
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info.rate = GetLittleLong();
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data_p += 4+2;
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info.width = GetLittleShort() / 8;
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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 = GetLittleLong();
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// Com_Printf("loopstart=%d\n", sfx->loopstart);
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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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if (!strncmp (data_p + 28, "mark", 4))
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{ // this is not a proper parse, but it works with cooledit...
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data_p += 24;
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i = GetLittleLong (); // samples in loop
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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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// find data chunk
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FindChunk("data");
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if (!data_p)
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{
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printf("Missing data chunk\n");
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return info;
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}
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data_p += 4;
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samples = GetLittleLong ();
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if (info.samples)
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{
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if (samples < info.samples)
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Error ("Sound %s has a bad loop length", name);
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}
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else
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info.samples = samples;
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info.dataofs = data_p - wav;
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return info;
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}
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//=====================================================================
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/*
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==============
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LoadSoundtrack
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==============
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*/
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void LoadSoundtrack (void)
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{
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char name[1024];
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FILE *f;
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int len;
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int i, val, j;
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soundtrack = NULL;
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sprintf (name, "%svideo/%s/%s.wav", gamedir, base, base);
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printf ("%s\n", name);
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f = fopen (name, "rb");
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if (!f)
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{
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printf ("no soundtrack for %s\n", base);
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return;
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}
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len = Q_filelength(f);
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soundtrack = malloc(len);
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fread (soundtrack, 1, len, f);
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fclose (f);
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wavinfo = GetWavinfo (name, soundtrack, len);
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// count samples for compression
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memset (samplecounts, 0, sizeof(samplecounts));
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j = wavinfo.samples/2;
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for (i=0 ; i<j ; i++)
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{
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val = ((unsigned short *)( soundtrack + wavinfo.dataofs))[i];
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samplecounts[val]++;
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}
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val = 0;
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for (i=0 ; i<0x10000 ; i++)
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if (samplecounts[i])
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val++;
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printf ("%i unique sample values\n", val);
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}
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/*
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==================
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WriteSound
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==================
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*/
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void WriteSound (FILE *output, int frame)
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{
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int start, end;
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int count;
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int empty = 0;
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int i;
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int sample;
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int width;
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width = wavinfo.width * wavinfo.channels;
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start = frame*wavinfo.rate/14;
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end = (frame+1)*wavinfo.rate/14;
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count = end - start;
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for (i=0 ; i<count ; i++)
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{
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sample = start+i;
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if (sample > wavinfo.samples || !soundtrack)
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fwrite (&empty, 1, width, output);
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else
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fwrite (soundtrack + wavinfo.dataofs + sample*width, 1, width,output);
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}
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}
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//==========================================================================
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/*
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==================
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MTF
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==================
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*/
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cblock_t MTF (cblock_t in)
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{
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int i, j, b, code;
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byte *out_p;
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int index[256];
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cblock_t out;
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out_p = out.data = malloc(in.count + 4);
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// write count
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*out_p++ = in.count&255;
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*out_p++ = (in.count>>8)&255;
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*out_p++ = (in.count>>16)&255;
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*out_p++ = (in.count>>24)&255;
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for (i=0 ; i<256 ; i++)
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index[i] = i;
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for (i=0 ; i<in.count ; i++)
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{
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b = in.data[i];
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code = index[b];
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*out_p++ = code;
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// shuffle b indexes to 0
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for (j=0 ; j<256 ; j++)
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if (index[j] < code)
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index[j]++;
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index[b] = 0;
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}
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out.count = out_p - out.data;
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return out;
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}
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//==========================================================================
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int bwt_size;
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byte *bwt_data;
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int bwtCompare (const void *elem1, const void *elem2)
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{
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int i;
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int i1, i2;
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int b1, b2;
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i1 = *(int *)elem1;
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i2 = *(int *)elem2;
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for (i=0 ; i<bwt_size ; i++)
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{
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b1 = bwt_data[i1];
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b2 = bwt_data[i2];
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if (b1 < b2)
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return -1;
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if (b1 > b2)
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return 1;
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if (++i1 == bwt_size)
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i1 = 0;
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if (++i2 == bwt_size)
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i2 = 0;
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}
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return 0;
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}
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/*
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==================
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BWT
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==================
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*/
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cblock_t BWT (cblock_t in)
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{
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int *sorted;
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int i;
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byte *out_p;
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cblock_t out;
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bwt_size = in.count;
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bwt_data = in.data;
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sorted = malloc(in.count*sizeof(*sorted));
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for (i=0 ; i<in.count ; i++)
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sorted[i] = i;
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qsort (sorted, in.count, sizeof(*sorted), bwtCompare);
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out_p = out.data = malloc(in.count + 8);
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// write count
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*out_p++ = in.count&255;
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*out_p++ = (in.count>>8)&255;
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*out_p++ = (in.count>>16)&255;
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*out_p++ = (in.count>>24)&255;
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// write head index
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for (i=0 ; i<in.count ; i++)
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if (sorted[i] == 0)
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break;
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*out_p++ = i&255;
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*out_p++ = (i>>8)&255;
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*out_p++ = (i>>16)&255;
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*out_p++ = (i>>24)&255;
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// write the L column
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for (i=0 ; i<in.count ; i++)
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*out_p++ = in.data[(sorted[i]+in.count-1)%in.count];
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free (sorted);
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out.count = out_p - out.data;
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return out;
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}
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//==========================================================================
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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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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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int SmallestNode (void)
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{
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int i;
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int best, bestnode;
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best = 99999999;
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bestnode = -1;
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for (i=0 ; i<numhnodes ; i++)
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{
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if (hnodes[i].used)
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continue;
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if (!hnodes[i].count)
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continue;
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if (hnodes[i].count < best)
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{
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best = hnodes[i].count;
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bestnode = i;
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}
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}
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if (bestnode == -1)
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return -1;
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hnodes[bestnode].used = true;
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return bestnode;
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}
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void BuildChars (int nodenum, unsigned bits, int bitcount)
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{
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hnode_t *node;
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if (nodenum < 256)
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{
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if (bitcount > 32)
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Error ("bitcount > 32");
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charbits[nodenum] = bits;
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charbitscount[nodenum] = bitcount;
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return;
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}
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node = &hnodes[nodenum];
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bits <<= 1;
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BuildChars (node->children[0], bits, bitcount+1);
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bits |= 1;
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BuildChars (node->children[1], bits, bitcount+1);
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}
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/*
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==================
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Huffman
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==================
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*/
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cblock_t Huffman (cblock_t in)
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{
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int i;
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hnode_t *node;
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int outbits, c;
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unsigned bits;
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byte *out_p;
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cblock_t out;
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int max, maxchar;
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// count
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memset (hnodes, 0, sizeof(hnodes));
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for (i=0 ; i<in.count ; i++)
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hnodes[in.data[i]].count++;
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// normalize counts
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max = 0;
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maxchar = 0;
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for (i=0 ; i<256 ; i++)
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{
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if (hnodes[i].count > max)
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{
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max = hnodes[i].count;
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maxchar = i;
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}
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}
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if (max == 0)
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Error ("Huffman: max == 0");
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for (i=0 ; i<256 ; i++)
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{
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hnodes[i].count = (hnodes[i].count*255+max-1) / max;
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}
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// build the nodes
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numhnodes = 256;
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while (numhnodes != 511)
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{
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node = &hnodes[numhnodes];
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// pick two lowest counts
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node->children[0] = SmallestNode ();
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if (node->children[0] == -1)
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break; // no more
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node->children[1] = SmallestNode ();
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if (node->children[1] == -1)
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{
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if (node->children[0] != numhnodes-1)
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Error ("Bad smallestnode");
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break;
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}
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node->count = hnodes[node->children[0]].count +
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hnodes[node->children[1]].count;
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numhnodes++;
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}
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BuildChars (numhnodes-1, 0, 0);
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out_p = out.data = malloc(in.count*2 + 1024);
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memset (out_p, 0, in.count*2+1024);
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// write count
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*out_p++ = in.count&255;
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*out_p++ = (in.count>>8)&255;
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*out_p++ = (in.count>>16)&255;
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*out_p++ = (in.count>>24)&255;
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// save out the 256 normalized counts so the tree can be recreated
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for (i=0 ; i<256 ; i++)
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*out_p++ = hnodes[i].count;
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// write bits
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outbits = 0;
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for (i=0 ; i<in.count ; i++)
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{
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c = charbitscount[in.data[i]];
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bits = charbits[in.data[i]];
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while (c)
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{
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c--;
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if (bits & (1<<c))
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out_p[outbits>>3] |= 1<<(outbits&7);
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outbits++;
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}
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}
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out_p += (outbits+7)>>3;
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out.count = out_p - out.data;
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return out;
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}
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//==========================================================================
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/*
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==================
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RLE
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==================
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*/
|
|
#define RLE_CODE 0xe8
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#define RLE_TRIPPLE 0xe9
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|
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int rle_counts[256];
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int rle_bytes[256];
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|
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cblock_t RLE (cblock_t in)
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{
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int i;
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byte *out_p;
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int val;
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int repeat;
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cblock_t out;
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out_p = out.data = malloc (in.count*2);
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// write count
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*out_p++ = in.count&255;
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*out_p++ = (in.count>>8)&255;
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*out_p++ = (in.count>>16)&255;
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*out_p++ = (in.count>>24)&255;
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for (i=0 ; i<in.count ; )
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{
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val = in.data[i];
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rle_bytes[val]++;
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repeat = 1;
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i++;
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while (i<in.count && repeat < 255 && in.data[i] == val)
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{
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repeat++;
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i++;
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}
|
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if (repeat < 256)
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rle_counts[repeat]++;
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|
if (repeat > 3 || val == RLE_CODE)
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{
|
|
*out_p++ = RLE_CODE;
|
|
*out_p++ = val;
|
|
*out_p++ = repeat;
|
|
}
|
|
else
|
|
{
|
|
while (repeat--)
|
|
*out_p++ = val;
|
|
}
|
|
}
|
|
|
|
out.count = out_p - out.data;
|
|
return out;
|
|
}
|
|
|
|
//==========================================================================
|
|
|
|
unsigned lzss_head[256];
|
|
unsigned lzss_next[0x20000];
|
|
|
|
/*
|
|
==================
|
|
LZSS
|
|
==================
|
|
*/
|
|
#define BACK_WINDOW 0x10000
|
|
#define BACK_BITS 16
|
|
#define FRONT_WINDOW 16
|
|
#define FRONT_BITS 4
|
|
cblock_t LZSS (cblock_t in)
|
|
{
|
|
int i;
|
|
byte *out_p;
|
|
cblock_t out;
|
|
int val;
|
|
int j, start, max;
|
|
int bestlength, beststart;
|
|
int outbits;
|
|
|
|
if (in.count >= sizeof(lzss_next)/4)
|
|
Error ("LZSS: too big");
|
|
|
|
memset (lzss_head, -1, sizeof(lzss_head));
|
|
|
|
out_p = out.data = malloc (in.count*2);
|
|
memset (out.data, 0, in.count*2);
|
|
|
|
// write count
|
|
*out_p++ = in.count&255;
|
|
*out_p++ = (in.count>>8)&255;
|
|
*out_p++ = (in.count>>16)&255;
|
|
*out_p++ = (in.count>>24)&255;
|
|
|
|
outbits = 0;
|
|
for (i=0 ; i<in.count ; )
|
|
{
|
|
val = in.data[i];
|
|
#if 1
|
|
// chained search
|
|
bestlength = 0;
|
|
beststart = 0;
|
|
|
|
max = FRONT_WINDOW;
|
|
if (i + max > in.count)
|
|
max = in.count - i;
|
|
|
|
start = lzss_head[val];
|
|
while (start != -1 && start >= i-BACK_WINDOW)
|
|
{
|
|
// count match length
|
|
for (j=0 ; j<max ; j++)
|
|
if (in.data[start+j] != in.data[i+j])
|
|
break;
|
|
if (j > bestlength)
|
|
{
|
|
bestlength = j;
|
|
beststart = start;
|
|
}
|
|
start = lzss_next[start];
|
|
}
|
|
|
|
#else
|
|
// slow simple search
|
|
// search for a match
|
|
max = FRONT_WINDOW;
|
|
if (i + max > in.count)
|
|
max = in.count - i;
|
|
|
|
start = i - BACK_WINDOW;
|
|
if (start < 0)
|
|
start = 0;
|
|
bestlength = 0;
|
|
beststart = 0;
|
|
for ( ; start < i ; start++)
|
|
{
|
|
if (in.data[start] != val)
|
|
continue;
|
|
// count match length
|
|
for (j=0 ; j<max ; j++)
|
|
if (in.data[start+j] != in.data[i+j])
|
|
break;
|
|
if (j > bestlength)
|
|
{
|
|
bestlength = j;
|
|
beststart = start;
|
|
}
|
|
}
|
|
#endif
|
|
beststart = BACK_WINDOW - (i-beststart);
|
|
|
|
if (bestlength < 3)
|
|
{ // output a single char
|
|
bestlength = 1;
|
|
|
|
out_p[outbits>>3] |= 1<<(outbits&7); // set bit to mark char
|
|
outbits++;
|
|
for (j=0 ; j<8 ; j++, outbits++)
|
|
if (val & (1<<j) )
|
|
out_p[outbits>>3] |= 1<<(outbits&7);
|
|
}
|
|
else
|
|
{ // output a phrase
|
|
outbits++; // leave a 0 bit to mark phrase
|
|
for (j=0 ; j<BACK_BITS ; j++, outbits++)
|
|
if (beststart & (1<<j) )
|
|
out_p[outbits>>3] |= 1<<(outbits&7);
|
|
for (j=0 ; j<FRONT_BITS ; j++, outbits++)
|
|
if (bestlength & (1<<j) )
|
|
out_p[outbits>>3] |= 1<<(outbits&7);
|
|
}
|
|
|
|
while (bestlength--)
|
|
{
|
|
val = in.data[i];
|
|
lzss_next[i] = lzss_head[val];
|
|
lzss_head[val] = i;
|
|
i++;
|
|
}
|
|
}
|
|
|
|
out_p += (outbits+7)>>3;
|
|
out.count = out_p - out.data;
|
|
return out;
|
|
}
|
|
|
|
//==========================================================================
|
|
|
|
#define MIN_REPT 15
|
|
#define MAX_REPT 0
|
|
#define HUF_TOKENS (256+MAX_REPT)
|
|
|
|
unsigned charbits1[256][HUF_TOKENS];
|
|
int charbitscount1[256][HUF_TOKENS];
|
|
|
|
hnode_t hnodes1[256][HUF_TOKENS*2];
|
|
int numhnodes1[256];
|
|
|
|
int order0counts[256];
|
|
|
|
/*
|
|
==================
|
|
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;
|
|
}
|
|
|
|
|
|
/*
|
|
==================
|
|
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);
|
|
}
|
|
|
|
|
|
/*
|
|
==================
|
|
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;
|
|
#if 1
|
|
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;
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
==================
|
|
Huffman1_Build
|
|
==================
|
|
*/
|
|
byte scaled[256][HUF_TOKENS];
|
|
void Huffman1_Build (FILE *f)
|
|
{
|
|
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;
|
|
for (j=0 ; j<HUF_TOKENS ; j++)
|
|
{ // easy to overflow 32 bits here!
|
|
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);
|
|
}
|
|
|
|
#if 0
|
|
// count up the total bits
|
|
total = 0;
|
|
for (i=0 ; i<256 ; i++)
|
|
for (j=0 ; j<256 ; j++)
|
|
total += charbitscount1[i][j] * hnodes1[i][j].count;
|
|
|
|
total = (total+7)/8;
|
|
printf ("%i bytes huffman1 compressed\n", total);
|
|
#endif
|
|
|
|
fwrite (scaled, 1, sizeof(scaled), f);
|
|
}
|
|
|
|
/*
|
|
==================
|
|
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 = malloc(in.count*2 + 1024);
|
|
memset (out_p, 0, in.count*2+1024);
|
|
|
|
// write count
|
|
*out_p++ = in.count&255;
|
|
*out_p++ = (in.count>>8)&255;
|
|
*out_p++ = (in.count>>16)&255;
|
|
*out_p++ = (in.count>>24)&255;
|
|
|
|
// 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;
|
|
#if 1
|
|
// 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;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
out_p += (outbits+7)>>3;
|
|
|
|
out.count = out_p - out.data;
|
|
|
|
return out;
|
|
}
|
|
|
|
//==========================================================================
|
|
|
|
|
|
/*
|
|
===================
|
|
LoadFrame
|
|
===================
|
|
*/
|
|
cblock_t LoadFrame (char *base, int frame, int digits, byte **palette)
|
|
{
|
|
int ten3, ten2, ten1, ten0;
|
|
cblock_t in;
|
|
int width, height;
|
|
char name[1024];
|
|
FILE *f;
|
|
|
|
in.data = NULL;
|
|
in.count = -1;
|
|
|
|
ten3 = frame/1000;
|
|
ten2 = (frame-ten3*1000)/100;
|
|
ten1 = (frame-ten3*1000-ten2*100)/10;
|
|
ten0 = frame%10;
|
|
|
|
if (digits == 4)
|
|
sprintf (name, "%svideo/%s/%s%i%i%i%i.pcx", gamedir, base, base, ten3, ten2, ten1, ten0);
|
|
else
|
|
sprintf (name, "%svideo/%s/%s%i%i%i.pcx", gamedir, base, base, ten2, ten1, ten0);
|
|
|
|
f = fopen(name, "rb");
|
|
if (!f)
|
|
{
|
|
in.data = NULL;
|
|
return in;
|
|
}
|
|
fclose (f);
|
|
|
|
printf ("%s\n", name);
|
|
Load256Image (name, &in.data, palette, &width, &height);
|
|
in.count = width*height;
|
|
// FIXME: map 0 and 255!
|
|
|
|
#if 0
|
|
// rle compress
|
|
rle = RLE(in);
|
|
free (in.data);
|
|
|
|
return rle;
|
|
#endif
|
|
|
|
return in;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
Cmd_Video
|
|
|
|
video <directory> <framedigits>
|
|
===============
|
|
*/
|
|
void Cmd_Video (void)
|
|
{
|
|
char savename[1024];
|
|
char name[1024];
|
|
FILE *output;
|
|
int startframe, frame;
|
|
byte *palette;
|
|
int width, height;
|
|
byte current_palette[768];
|
|
int command;
|
|
int i;
|
|
int digits;
|
|
cblock_t in, huffman;
|
|
int swap;
|
|
|
|
|
|
GetToken (false);
|
|
strcpy (base, token);
|
|
if (g_release)
|
|
{
|
|
// sprintf (savename, "video/%s.cin", token);
|
|
// ReleaseFile (savename);
|
|
return;
|
|
}
|
|
|
|
GetToken (false);
|
|
digits = atoi(token);
|
|
|
|
// optionally skip frames
|
|
if (TokenAvailable ())
|
|
{
|
|
GetToken (false);
|
|
startframe = atoi(token);
|
|
}
|
|
else
|
|
startframe=0;
|
|
|
|
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 ();
|
|
|
|
if (digits == 4)
|
|
sprintf (name, "%svideo/%s/%s0000.pcx", gamedir, base, base);
|
|
else
|
|
sprintf (name, "%svideo/%s/%s000.pcx", gamedir, base, base);
|
|
|
|
printf ("%s\n", name);
|
|
Load256Image (name, NULL, &palette, &width, &height);
|
|
|
|
output = fopen (savename, "wb");
|
|
if (!output)
|
|
Error ("Can't open %s", savename);
|
|
|
|
// write header info
|
|
i = LittleLong (width);
|
|
fwrite (&i, 4, 1, output);
|
|
i = LittleLong (height);
|
|
fwrite (&i, 4, 1, output);
|
|
i = LittleLong (wavinfo.rate);
|
|
fwrite (&i, 4, 1, output);
|
|
i = LittleLong (wavinfo.width);
|
|
fwrite (&i, 4, 1, output);
|
|
i = LittleLong (wavinfo.channels);
|
|
fwrite (&i, 4, 1, output);
|
|
|
|
// build the dictionary
|
|
for ( frame=startframe ; ; frame++)
|
|
{
|
|
printf ("counting ", frame);
|
|
in = LoadFrame (base, frame, digits, &palette);
|
|
if (!in.data)
|
|
break;
|
|
Huffman1_Count (in);
|
|
free (in.data);
|
|
}
|
|
printf ("\n");
|
|
|
|
// build nodes and write counts
|
|
Huffman1_Build (output);
|
|
|
|
|
|
memset (current_palette, 0, sizeof(current_palette));
|
|
|
|
// compress it with the dictionary
|
|
for (frame=startframe ; ; frame++)
|
|
{
|
|
printf ("packing ", frame);
|
|
in = LoadFrame (base, frame, digits, &palette);
|
|
if (!in.data)
|
|
break;
|
|
|
|
// see if the palette has changed
|
|
for (i=0 ; i<768 ; i++)
|
|
if (palette[i] != current_palette[i])
|
|
{
|
|
// write a palette change
|
|
memcpy (current_palette, palette, sizeof(current_palette));
|
|
command = LittleLong(1);
|
|
fwrite (&command, 1, 4, output);
|
|
fwrite (current_palette, 1, sizeof(current_palette), output);
|
|
break;
|
|
}
|
|
if (i == 768)
|
|
{
|
|
command = 0; // no palette change
|
|
fwrite (&command, 1, 4, output);
|
|
}
|
|
|
|
// save the image
|
|
huffman = Huffman1 (in);
|
|
printf ("%5i bytes after huffman1\n", huffman.count);
|
|
|
|
swap = LittleLong (huffman.count);
|
|
fwrite (&swap, 1, sizeof(swap), output);
|
|
|
|
fwrite (huffman.data, 1, huffman.count, output);
|
|
|
|
// save some sound samples
|
|
WriteSound (output, frame);
|
|
|
|
free (palette);
|
|
free (in.data);
|
|
free (huffman.data);
|
|
}
|
|
printf ("\n");
|
|
|
|
// write end-of-file command
|
|
command = 2;
|
|
fwrite (&command, 1, 4, output);
|
|
|
|
printf ("Total size: %i\n", ftell (output));
|
|
|
|
fclose (output);
|
|
|
|
if (soundtrack)
|
|
free (soundtrack);
|
|
}
|