static void init_rast_tab( void )
{
init();
init_offset();
init_twoside();
init_twoside_offset();
init_unfilled();
init_offset_unfilled();
init_twoside_unfilled();
init_twoside_offset_unfilled();
}
static void init_rast_tab(void)
{
init();
init_offset();
init_twoside();
init_twoside_offset();
init_unfilled();
init_offset_unfilled();
init_twoside_unfilled();
init_twoside_offset_unfilled();
init_fallback();
init_offset_fallback();
init_twoside_fallback();
init_twoside_offset_fallback();
init_unfilled_fallback();
init_offset_unfilled_fallback();
init_twoside_unfilled_fallback();
init_twoside_offset_unfilled_fallback();
init_flat_specular(); /* special! */
}
void _swsetup_trifuncs_init( GLcontext *ctx )
{
(void) ctx;
init();
init_offset();
init_twoside();
init_offset_twoside();
init_unfilled();
init_offset_unfilled();
init_twoside_unfilled();
init_offset_twoside_unfilled();
init_rgba();
init_offset_rgba();
init_twoside_rgba();
init_offset_twoside_rgba();
init_unfilled_rgba();
init_offset_unfilled_rgba();
init_twoside_unfilled_rgba();
init_offset_twoside_unfilled_rgba();
}
static void init_rast_tab( void )
{
init();
init_offset();
init_twoside();
init_twoside_offset();
init_unfilled();
init_offset_unfilled();
init_twoside_unfilled();
init_twoside_offset_unfilled();
init_fallback();
init_offset_fallback();
init_twoside_fallback();
init_twoside_offset_fallback();
init_unfilled_fallback();
init_offset_unfilled_fallback();
init_twoside_unfilled_fallback();
init_twoside_offset_unfilled_fallback();
init_flat();
init_offset_flat();
init_twoside_flat();
init_twoside_offset_flat();
init_unfilled_flat();
init_offset_unfilled_flat();
init_twoside_unfilled_flat();
init_twoside_offset_unfilled_flat();
init_fallback_flat();
init_offset_fallback_flat();
init_twoside_fallback_flat();
init_twoside_offset_fallback_flat();
init_unfilled_fallback_flat();
init_offset_unfilled_fallback_flat();
init_twoside_unfilled_fallback_flat();
init_twoside_offset_unfilled_fallback_flat();
}
int shorten(FOB *stdi, FOB *stdo, int argc, char **argv) {
static char* copyright = "Copyright (C) 1992,1993 Tony Robinson\n";
long **buffer, *buffer1, **offset;
long default_offset;
int version = FORMAT_VERSION, extract = 0, bitshift = 0;
int hiloint = 1, hilo = !(*((char*) &hiloint));
int ftype = hilo ? TYPE_S16HL : TYPE_S16LH;
char *magic = MAGIC, *filenamei = NULL, *filenameo = NULL;
char *tmpfilename = NULL, *minusstr = "-", *filesuffix = ".shn";
FOB *filei, *fileo;
int blocksize = DEFAULT_BLOCK_SIZE, nchan = DEFAULT_NCHAN;
int i, chan, nwrap, nskip = DEFAULT_NSKIP, ndiscard = DEFAULT_NDISCARD;
int *qlpc = NULL, maxnlpc = DEFAULT_MAXNLPC, nmean = DEFAULT_NMEAN;
int maxresn = DEFAULT_MAXBITRATE, quanterror = DEFAULT_QUANTERROR;
int nfilename;
/* this block just processes the command line arguments */
{ int c;
hs_resetopt();
/* while((c = hs_getopt(argc, argv, "a:b:c:d:hm:p:r:t:xv:")) != -1) */
while((c = hs_getopt(argc, argv, "a:b:c:d:hm:p:t:xv:")) != -1)
switch(c) {
case 'a':
if((nskip = atoi(hs_optarg)) < 0) usage_exit(1);
break;
case 'b':
if((blocksize = atoi(hs_optarg)) <= 0) usage_exit(1);
break;
case 'c':
if((nchan = atoi(hs_optarg)) <= 0) usage_exit(1);
break;
case 'd':
if((ndiscard = atoi(hs_optarg)) < 0) usage_exit(1);
break;
case 'h':
usage_exit(-1);
break;
case 'm':
if((nmean = atoi(hs_optarg)) < 0) usage_exit(1);
break;
case 'p':
maxnlpc = atoi(hs_optarg);
if(maxnlpc < 0 || maxnlpc > MAX_LPC_ORDER) usage_exit(1);
break;
case 'q':
if((quanterror = atoi(hs_optarg)) < 0) usage_exit(1);
break;
case 'r':
if((maxresn = atoi(hs_optarg)) < 0) usage_exit(1);
break;
case 't':
if (!strcmp(hs_optarg, "au")) ftype = TYPE_AU;
else if(!strcmp(hs_optarg, "s8")) ftype = TYPE_S8;
else if(!strcmp(hs_optarg, "u8")) ftype = TYPE_U8;
else if(!strcmp(hs_optarg, "s16")) ftype = hilo ? TYPE_S16HL : TYPE_S16LH;
else if(!strcmp(hs_optarg, "u16")) ftype = hilo ? TYPE_U16HL : TYPE_U16LH;
else if(!strcmp(hs_optarg, "s16x"))ftype = hilo ? TYPE_S16LH : TYPE_S16HL;
else if(!strcmp(hs_optarg, "u16x"))ftype = hilo ? TYPE_U16LH : TYPE_U16HL;
else if(!strcmp(hs_optarg, "s16hl"))ftype = TYPE_S16HL;
else if(!strcmp(hs_optarg, "u16hl"))ftype = TYPE_U16HL;
else if(!strcmp(hs_optarg, "s16lh"))ftype = TYPE_S16LH;
else if(!strcmp(hs_optarg, "u16lh"))ftype = TYPE_U16LH;
else usage_exit(1);
break;
case 'v':
version = atoi(hs_optarg);
if(version < 0 || version > FORMAT_VERSION + 1) usage_exit(1);
break;
case 'x':
extract = 1;
break;
case '?':
usage_exit(1);
break;
}
}
if(maxnlpc >= blocksize)
usage_exit_s(1, "the predictor order must be less than the block size\n");
/* this chunk just sets up the input and output files */
#ifdef STANDALONE
nfilename = argc - hs_optind;
switch(nfilename) {
case 0:
filenamei = minusstr;
filenameo = minusstr;
break;
case 1: {
int oldfilelen, suffixlen, maxlen;
filenamei = argv[argc - 1];
oldfilelen = strlen(filenamei);
suffixlen = strlen(filesuffix);
maxlen = oldfilelen + suffixlen;
tmpfilename = pmalloc((ulong) (maxlen + 1));
strcpy(tmpfilename, filenamei);
if(extract) {
int newfilelen = oldfilelen - suffixlen;
if(strcmp(filenamei + newfilelen, filesuffix))
usage_exit_sss(1,"file name does not end in %s: %s\n", filesuffix,
filenamei);
tmpfilename[newfilelen] = '\0';
}
else
strcat(tmpfilename, filesuffix);
filenameo = tmpfilename;
break;
}
case 2:
filenamei = argv[argc - 2];
filenameo = argv[argc - 1];
break;
default:
usage_exit(1);
}
if(strcmp(filenamei, minusstr)) {
if((filei = fopen(filenamei, readmode)) == NULL)
usage_exit_ss(1, "can't open: %s\n", filenamei);
}
else filei = stdi;
if(strcmp(filenameo, minusstr)) {
if((fileo = fopen(filenameo, writemode)) == NULL)
usage_exit_ss(1, "can't open: %s\n", filenameo);
}
else fileo = stdo;
#else
fileo = stdo;
filei = stdi;
#endif
/* discard header on input file - can't rely on fseek() here */
if(ndiscard != 0) {
char discardbuf[BUFSIZ];
for(i = 0; i < ndiscard / BUFSIZ; i++)
if(fread(discardbuf, BUFSIZ, 1, filei) != 1)
usage_exit_s(1, "EOF on input when discarding header\n");
if(ndiscard % BUFSIZ != 0)
if(fread(discardbuf, ndiscard % BUFSIZ, 1, filei) != 1)
usage_exit_s(1, "EOF on input when discarding header\n");
}
if(!extract) {
float alpha;
int nread;
nwrap = MAX(NWRAP, maxnlpc);
/* grab some space for the input buffers */
buffer = long2d((ulong) nchan, (ulong) (blocksize + nwrap));
buffer1 = (long*) pmalloc((ulong) (blocksize * sizeof(*buffer1)));
offset = long2d((ulong) nchan, (ulong) nmean);
for(chan = 0; chan < nchan; chan++) {
for(i = 0; i < nwrap; i++) buffer[chan][i] = 0;
buffer[chan] += nwrap;
}
if(maxnlpc > 0)
qlpc = (int*) pmalloc((ulong) (maxnlpc * sizeof(*qlpc)));
default_offset = init_offset(offset, nchan, nmean, ftype);
/* write magic number */
if(fwrite(magic, strlen(magic), 1, fileo) != 1)
usage_exit_s(1, "could not write the magic number\n");
/* write version number */
if(putc(version, fileo) == EOF)
usage_exit_s(1, "EOF when writing version number\n");
/* initialise the variable length mode */
var_put_init(fileo);
/* put file type and number of channels */
UINT_PUT(ftype, TYPESIZE, fileo);
UINT_PUT(nchan, CHANSIZE, fileo);
/* put blocksize if version > 0 */
if(version == 0) {
alpha = ALPHA0;
if(blocksize != DEFAULT_BLOCK_SIZE) {
uvar_put((ulong) FN_BLOCKSIZE, FNSIZE, fileo);
UINT_PUT(blocksize, (int) (log((double) DEFAULT_BLOCK_SIZE) / M_LN2),
fileo);
}
}
else {
alpha = ALPHA1;
UINT_PUT(blocksize, (int) (log((double) DEFAULT_BLOCK_SIZE) / M_LN2),
fileo);
UINT_PUT(maxnlpc, LPCQSIZE, fileo);
UINT_PUT(nmean, 0, fileo);
UINT_PUT(nskip, NSKIPSIZE, fileo);
for(i = 0; i < nskip; i++) {
int byte = getc(filei);
if(byte == EOF)
usage_exit_s(1, "EOF when reading header\n");
uvar_put((ulong) byte, XBYTESIZE, fileo);
}
}
while((nread = fread_type(buffer, ftype, nchan, blocksize, filei)) != 0) {
/* put blocksize if changed */
if(nread != blocksize) {
uvar_put((ulong) FN_BLOCKSIZE, FNSIZE, fileo);
UINT_PUT(nread, (int) (log((double) blocksize) / M_LN2), fileo);
blocksize = nread;
}
for(chan = 0; chan < nchan; chan++) {
long coffset, *cbuffer = buffer[chan];
long sum, fnd;
int resn;
/* test for excessive and exploitable quantisation, and exploit!! */
{ int newbitshift = find_bitshift(cbuffer, blocksize, ftype);
if(newbitshift != bitshift) {
uvar_put((ulong) FN_BITSHIFT, FNSIZE, fileo);
uvar_put((ulong) newbitshift, BITSHIFTSIZE, fileo);
bitshift = newbitshift;
}
}
/* deduct mean if appropriate */
if(nmean == 0) coffset = default_offset;
else {
sum = 0;
for(i = 0; i < nmean; i++) sum += offset[chan][i];
coffset = sum / nmean;
sum = 0;
for(i = 0; i < blocksize; i++)
sum += cbuffer[i];
for(i = 1; i < nmean; i++)
offset[chan][i - 1] = offset[chan][i];
offset[chan][nmean - 1] = sum / blocksize;
}
if(coffset != 0)
for(i = -nwrap; i < blocksize; i++)
cbuffer[i] -= coffset;
/* find the best model */
if(maxnlpc == 0) {
long sum0 = 0, sum1 = 0, sum2 = 0, sum3 = 0, last0, last1, last2;
last2 = (last1 = (last0 = cbuffer[-1]) - cbuffer[-2]) - (cbuffer[-2]
-cbuffer[-3]);
for(i = 0; i < blocksize; i++) {
long diff0, diff1, diff2, diff3;
sum0 += abs(diff0 = cbuffer[i]);
sum1 += abs(diff1 = diff0 - last0);
sum2 += abs(diff2 = diff1 - last1);
sum3 += abs(diff3 = diff2 - last2);
last0 = diff0;
last1 = diff1;
last2 = diff2;
}
if(sum0 < MIN(MIN(sum1, sum2), sum3)) {
sum = sum0;
fnd = FN_DIFF0;
}
else if(sum1 < MIN(sum2, sum3)) {
sum = sum1;
fnd = FN_DIFF1;
}
else if(sum2 < sum3) {
sum = sum2;
fnd = FN_DIFF2;
}
else {
sum = sum3;
fnd = FN_DIFF3;
}
if(alpha * sum < blocksize) resn = 0;
else resn = log(alpha * sum / (double) blocksize) / M_LN2 + 0.5;
if(resn > maxresn) {
bitshift = resn - maxresn;
for(i = 0; i < blocksize; i++) cbuffer[i] >>= bitshift;
resn = maxresn;
}
uvar_put(fnd, FNSIZE, fileo);
uvar_put((ulong) resn, ENERGYSIZE, fileo);
switch(fnd) {
case FN_DIFF0:
for(i = 0; i < blocksize; i++)
VAR_PUT(cbuffer[i], resn, fileo);
break;
case FN_DIFF1:
for(i = 0; i < blocksize; i++)
VAR_PUT(cbuffer[i] - cbuffer[i - 1], resn, fileo);
break;
case FN_DIFF2:
for(i = 0; i < blocksize; i++)
VAR_PUT(cbuffer[i] - 2 * cbuffer[i - 1] + cbuffer[i - 2],
resn, fileo);
break;
case FN_DIFF3:
for(i = 0; i < blocksize; i++)
VAR_PUT(cbuffer[i] - 3 * (cbuffer[i - 1] - cbuffer[i - 2]) -
cbuffer[i - 3], resn, fileo);
break;
}
}
else { /* maxnlpc > 0 so do lpc analysis */