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-rw-r--r--tree/cmap.c466
1 files changed, 0 insertions, 466 deletions
diff --git a/tree/cmap.c b/tree/cmap.c
deleted file mode 100644
index 577ba7c0..00000000
--- a/tree/cmap.c
+++ /dev/null
@@ -1,466 +0,0 @@
-#include <fitz.h>
-
-typedef struct fz_range_s fz_range;
-
-enum { MAXCODESPACE = 10 };
-enum { SINGLE, RANGE, LOOKUP };
-
-struct fz_range_s
-{
- int low;
- int high;
- int flag;
- int offset;
-};
-
-struct fz_cmap_s
-{
- int refs;
- char cmapname[32];
-
- char usecmapname[32];
- fz_cmap *usecmap;
-
- int wmode;
-
- int ncspace;
- struct {
- int n;
- unsigned char lo[4];
- unsigned char hi[4];
- } cspace[MAXCODESPACE];
-
- int rlen, rcap;
- fz_range *ranges;
-
- int tlen, tcap;
- int *lookup;
-};
-
-fz_error *
-fz_newcmap(fz_cmap **cmapp)
-{
- fz_cmap *cmap;
-
- cmap = *cmapp = fz_malloc(sizeof(fz_cmap));
- if (!cmap)
- return fz_outofmem;
-
- cmap->refs = 1;
- strcpy(cmap->cmapname, "");
-
- strcpy(cmap->usecmapname, "");
- cmap->usecmap = nil;
-
- cmap->wmode = 0;
-
- cmap->ncspace = 0;
-
- cmap->rlen = 0;
- cmap->rcap = 0;
- cmap->ranges = nil;
-
- cmap->tlen = 0;
- cmap->tcap = 0;
- cmap->lookup = nil;
-
- return nil;
-}
-
-fz_cmap *
-fz_keepcmap(fz_cmap *cmap)
-{
- cmap->refs ++;
- return cmap;
-}
-
-void
-fz_dropcmap(fz_cmap *cmap)
-{
- if (--cmap->refs == 0)
- {
- if (cmap->usecmap)
- fz_dropcmap(cmap->usecmap);
- fz_free(cmap->ranges);
- fz_free(cmap->lookup);
- fz_free(cmap);
- }
-}
-
-char *
-fz_getcmapname(fz_cmap *cmap)
-{
- if (cmap->cmapname[0])
- return cmap->cmapname;
- return nil;
-}
-
-void
-fz_setcmapname(fz_cmap *cmap, char *cmapname)
-{
- strlcpy(cmap->cmapname, cmapname, sizeof cmap->cmapname);
-}
-
-char *
-fz_getusecmapname(fz_cmap *cmap)
-{
- if (cmap->usecmapname[0])
- return cmap->usecmapname;
- return nil;
-}
-
-void
-fz_setusecmapname(fz_cmap *cmap, char *usecmap)
-{
- strlcpy(cmap->usecmapname, usecmap, sizeof cmap->usecmapname);
-}
-
-fz_cmap *
-fz_getusecmap(fz_cmap *cmap)
-{
- return cmap->usecmap;
-}
-
-void
-fz_setusecmap(fz_cmap *cmap, fz_cmap *usecmap)
-{
- int i;
-
- if (cmap->usecmap)
- fz_dropcmap(cmap->usecmap);
- cmap->usecmap = fz_keepcmap(usecmap);
-
- if (cmap->ncspace == 0)
- {
- cmap->ncspace = usecmap->ncspace;
- for (i = 0; i < usecmap->ncspace; i++)
- cmap->cspace[i] = usecmap->cspace[i];
- }
-}
-
-void
-fz_setwmode(fz_cmap *cmap, int wmode)
-{
- cmap->wmode = wmode;
-}
-
-int
-fz_getwmode(fz_cmap *cmap)
-{
- return cmap->wmode;
-}
-
-fz_error *
-fz_addcodespacerange(fz_cmap *cmap, unsigned lo, unsigned hi, int n)
-{
- int i;
-
- if (cmap->ncspace + 1 == MAXCODESPACE)
- return fz_throw("rangelimit: too many code space ranges");
-
- cmap->cspace[cmap->ncspace].n = n;
-
- for (i = 0; i < n; i++)
- {
- int o = (n - i - 1) * 8;
- cmap->cspace[cmap->ncspace].lo[i] = (lo >> o) & 0xFF;
- cmap->cspace[cmap->ncspace].hi[i] = (hi >> o) & 0xFF;
- }
-
- cmap->ncspace ++;
-
- return nil;
-}
-
-fz_error *
-fz_addcidrange(fz_cmap *cmap, int low, int high, int offset)
-{
- if (cmap->rlen + 1 > cmap->rcap)
- {
- fz_range *newranges;
- int newcap = cmap->rcap == 0 ? 256 : cmap->rcap * 2;
- newranges = fz_realloc(cmap->ranges, newcap * sizeof(fz_range));
- if (!newranges)
- return fz_outofmem;
- cmap->rcap = newcap;
- cmap->ranges = newranges;
- }
-
- cmap->ranges[cmap->rlen].low = low;
- cmap->ranges[cmap->rlen].high = high;
- cmap->ranges[cmap->rlen].flag = high - low == 0 ? SINGLE : RANGE;
- cmap->ranges[cmap->rlen].offset = offset;
- cmap->rlen ++;
-
- return nil;
-}
-
-static fz_error *
-addlookup(fz_cmap *cmap, int value)
-{
- if (cmap->tlen + 1 > cmap->tcap)
- {
- int newcap = cmap->tcap == 0 ? 256 : cmap->tcap * 2;
- int *newlookup = fz_realloc(cmap->lookup, newcap * sizeof(int));
- if (!newlookup)
- return fz_outofmem;
- cmap->tcap = newcap;
- cmap->lookup = newlookup;
- }
-
- cmap->lookup[cmap->tlen++] = value;
-
- return nil;
-}
-
-static int compare(const void *va, const void *vb)
-{
- return ((const fz_range*)va)->low - ((const fz_range*)vb)->low;
-}
-
-fz_error *
-fz_endcidrange(fz_cmap *cmap)
-{
- fz_error *error;
- fz_range *newranges;
- int *newlookup;
- fz_range *a; /* last written range on output */
- fz_range *b; /* current range examined on input */
-
- qsort(cmap->ranges, cmap->rlen, sizeof(fz_range), compare);
-
- a = cmap->ranges;
- b = cmap->ranges + 1;
-
- while (b < cmap->ranges + cmap->rlen)
- {
- /* input contiguous */
- if (a->high + 1 == b->low)
- {
- /* output contiguous */
- if (a->high - a->low + a->offset + 1 == b->offset)
- {
- /* SR -> R and SS -> R and RR -> R and RS -> R */
- if (a->flag == SINGLE || a->flag == RANGE)
- {
- a->flag = RANGE;
- a->high = b->high;
- }
-
- /* LS -> L */
- else if (a->flag == LOOKUP && b->flag == SINGLE)
- {
- a->high = b->high;
- error = addlookup(cmap, b->offset);
- if (error)
- return error;
- }
-
- /* LR -> LR */
- else if (a->flag == LOOKUP && b->flag == RANGE)
- {
- *(++a) = *b;
- }
- }
-
- /* output separated */
- else
- {
- /* SS -> L */
- if (a->flag == SINGLE && b->flag == SINGLE)
- {
- a->flag = LOOKUP;
- a->high = b->high;
-
- error = addlookup(cmap, a->offset);
- if (error)
- return error;
-
- error = addlookup(cmap, b->offset);
- if (error)
- return error;
-
- a->offset = cmap->tlen - 2;
- }
-
- /* LS -> L */
- else if (a->flag == LOOKUP && b->flag == SINGLE)
- {
- a->high = b->high;
- error = addlookup(cmap, b->offset);
- if (error)
- return error;
- }
-
- /* XX -> XX */
- else
- {
- *(++a) = *b;
- }
- }
- }
-
- /* input separated: XX -> XX */
- else
- {
- *(++a) = *b;
- }
-
- b ++;
- }
-
- cmap->rlen = a - cmap->ranges + 1;
-
- assert(cmap->rlen > 0);
-
- newranges = fz_realloc(cmap->ranges, cmap->rlen * sizeof(fz_range));
- if (!newranges)
- return fz_outofmem;
- cmap->rcap = cmap->rlen;
- cmap->ranges = newranges;
-
- if (cmap->tlen)
- {
- newlookup = fz_realloc(cmap->lookup, cmap->tlen * sizeof(int));
- if (!newlookup)
- return fz_outofmem;
- cmap->tcap = cmap->tlen;
- cmap->lookup = newlookup;
- }
-
- return nil;
-}
-
-fz_error *
-fz_setcidlookup(fz_cmap *cmap, int map[256])
-{
- int i;
-
- cmap->rlen = cmap->rcap = 1;
- cmap->ranges = fz_malloc(sizeof (fz_range));
- if (!cmap->ranges) {
- return fz_outofmem;
- }
-
- cmap->tlen = cmap->tcap = 256;
- cmap->lookup = fz_malloc(sizeof (int) * 256);
- if (!cmap->lookup) {
- fz_free(cmap->ranges);
- return fz_outofmem;
- }
-
- cmap->ranges[0].low = 0;
- cmap->ranges[0].high = 255;
- cmap->ranges[0].flag = LOOKUP;
- cmap->ranges[0].offset = 0;
-
- for (i = 0; i < 256; i++)
- cmap->lookup[i] = map[i];
-
- return nil;
-}
-
-int
-fz_lookupcid(fz_cmap *cmap, int cpt)
-{
- int l = 0;
- int r = cmap->rlen - 1;
- int m;
-
- while (l <= r)
- {
- m = (l + r) >> 1;
- if (cpt < cmap->ranges[m].low)
- r = m - 1;
- else if (cpt > cmap->ranges[m].high)
- l = m + 1;
- else
- {
- int i = cpt - cmap->ranges[m].low + cmap->ranges[m].offset;
- if (cmap->ranges[m].flag == LOOKUP)
- return cmap->lookup[i];
- return i;
- }
- }
-
- if (cmap->usecmap)
- return fz_lookupcid(cmap->usecmap, cpt);
-
- return -1;
-}
-
-unsigned char *
-fz_decodecpt(fz_cmap *cmap, unsigned char *buf, int *cpt)
-{
- int i, k;
-
- for (k = 0; k < cmap->ncspace; k++)
- {
- unsigned char *lo = cmap->cspace[k].lo;
- unsigned char *hi = cmap->cspace[k].hi;
- int n = cmap->cspace[k].n;
- int c = 0;
-
- for (i = 0; i < n; i++)
- {
- if (lo[i] <= buf[i] && buf[i] <= hi[i])
- c = (c << 8) | buf[i];
- else
- break;
- }
-
- if (i == n) {
- *cpt = c;
- return buf + n;
- }
- }
-
- *cpt = 0;
- return buf + 1;
-}
-
-void
-fz_debugcmap(fz_cmap *cmap)
-{
- int i, k;
-
- printf("cmap $%p /%s {\n", cmap, cmap->cmapname);
-
- if (cmap->usecmapname[0])
- printf(" usecmap /%s\n", cmap->usecmapname);
- if (cmap->usecmap)
- printf(" usecmap $%p\n", cmap->usecmap);
-
- printf(" wmode %d\n", cmap->wmode);
-
- printf(" codespaces {\n");
- for (i = 0; i < cmap->ncspace; i++)
- {
- printf(" <");
- for (k = 0; k < cmap->cspace[i].n; k++)
- printf("%02x", cmap->cspace[i].lo[k]);
- printf("> <");
- for (k = 0; k < cmap->cspace[i].n; k++)
- printf("%02x", cmap->cspace[i].hi[k]);
- printf(">\n");
- }
- printf(" }\n");
-
- printf(" ranges (%d,%d) {\n", cmap->rlen, cmap->tlen);
- for (i = 0; i < cmap->rlen; i++)
- {
- fz_range *r = &cmap->ranges[i];
- printf(" <%04x> <%04x> ", r->low, r->high);
- if (r->flag == LOOKUP)
- {
- printf("[ ");
- for (k = 0; k < r->high - r->low + 1; k++)
- printf("%d ", cmap->lookup[r->offset + k]);
- printf("]\n");
- }
- else
- printf("%d\n", r->offset);
- }
- printf(" }\n}\n");
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-22 09:56:34 +0000