diff options
Diffstat (limited to 'fitz/res_font.c')
| -rw-r--r-- | fitz/res_font.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/fitz/res_font.c b/fitz/res_font.c new file mode 100644 index 00000000..b7367ce1 --- /dev/null +++ b/fitz/res_font.c @@ -0,0 +1,269 @@ +#include <fitz.h> + +void +fz_initfont(fz_font *font, char *name) +{ + font->refs = 1; + strlcpy(font->name, name, sizeof font->name); + + font->wmode = 0; + + font->bbox.min.x = 0; + font->bbox.min.y = 0; + font->bbox.max.x = 1000; + font->bbox.max.y = 1000; + + font->hmtxcap = 0; + font->vmtxcap = 0; + font->nhmtx = 0; + font->nvmtx = 0; + font->hmtx = nil; + font->vmtx = nil; + + font->dhmtx.lo = 0x0000; + font->dhmtx.hi = 0xFFFF; + font->dhmtx.w = 0; + + font->dvmtx.lo = 0x0000; + font->dvmtx.hi = 0xFFFF; + font->dvmtx.x = 0; + font->dvmtx.y = 880; + font->dvmtx.w = -1000; +} + +fz_font * +fz_keepfont(fz_font *font) +{ + font->refs ++; + return font; +} + +void +fz_dropfont(fz_font *font) +{ + if (--font->refs == 0) + { + if (font->drop) + font->drop(font); + fz_free(font->hmtx); + fz_free(font->vmtx); + fz_free(font); + } +} + +void +fz_setfontwmode(fz_font *font, int wmode) +{ + font->wmode = wmode; +} + +void +fz_setfontbbox(fz_font *font, int xmin, int ymin, int xmax, int ymax) +{ + font->bbox.min.x = xmin; + font->bbox.min.y = ymin; + font->bbox.max.x = xmax; + font->bbox.max.y = ymax; +} + +void +fz_setdefaulthmtx(fz_font *font, int w) +{ + font->dhmtx.w = w; +} + +void +fz_setdefaultvmtx(fz_font *font, int y, int w) +{ + font->dvmtx.y = y; + font->dvmtx.w = w; +} + +fz_error * +fz_addhmtx(fz_font *font, int lo, int hi, int w) +{ + int newcap; + fz_hmtx *newmtx; + + if (font->nhmtx + 1 >= font->hmtxcap) + { + newcap = font->hmtxcap + 16; + newmtx = fz_realloc(font->hmtx, sizeof(fz_hmtx) * newcap); + if (!newmtx) + return fz_outofmem; + font->hmtxcap = newcap; + font->hmtx = newmtx; + } + + font->hmtx[font->nhmtx].lo = lo; + font->hmtx[font->nhmtx].hi = hi; + font->hmtx[font->nhmtx].w = w; + font->nhmtx++; + + return nil; +} + +fz_error * +fz_addvmtx(fz_font *font, int lo, int hi, int x, int y, int w) +{ + int newcap; + fz_vmtx *newmtx; + + if (font->nvmtx + 1 >= font->vmtxcap) + { + newcap = font->vmtxcap + 16; + newmtx = fz_realloc(font->vmtx, sizeof(fz_vmtx) * newcap); + if (!newmtx) + return fz_outofmem; + font->vmtxcap = newcap; + font->vmtx = newmtx; + } + + font->vmtx[font->nvmtx].lo = lo; + font->vmtx[font->nvmtx].hi = hi; + font->vmtx[font->nvmtx].x = x; + font->vmtx[font->nvmtx].y = y; + font->vmtx[font->nvmtx].w = w; + font->nvmtx++; + + return nil; +} + +static int cmph(const void *a0, const void *b0) +{ + fz_hmtx *a = (fz_hmtx*)a0; + fz_hmtx *b = (fz_hmtx*)b0; + return a->lo - b->lo; +} + +static int cmpv(const void *a0, const void *b0) +{ + fz_vmtx *a = (fz_vmtx*)a0; + fz_vmtx *b = (fz_vmtx*)b0; + return a->lo - b->lo; +} + +fz_error * +fz_endhmtx(fz_font *font) +{ + fz_hmtx *newmtx; + + if (!font->hmtx) + return nil; + + qsort(font->hmtx, font->nhmtx, sizeof(fz_hmtx), cmph); + + newmtx = fz_realloc(font->hmtx, sizeof(fz_hmtx) * font->nhmtx); + if (!newmtx) + return fz_outofmem; + font->hmtxcap = font->nhmtx; + font->hmtx = newmtx; + + return nil; +} + +fz_error * +fz_endvmtx(fz_font *font) +{ + fz_vmtx *newmtx; + + if (!font->vmtx) + return nil; + + qsort(font->vmtx, font->nvmtx, sizeof(fz_vmtx), cmpv); + + newmtx = fz_realloc(font->vmtx, sizeof(fz_vmtx) * font->nvmtx); + if (!newmtx) + return fz_outofmem; + font->vmtxcap = font->nvmtx; + font->vmtx = newmtx; + + return nil; +} + +fz_hmtx +fz_gethmtx(fz_font *font, int cid) +{ + int l = 0; + int r = font->nhmtx - 1; + int m; + + if (!font->hmtx) + goto notfound; + + while (l <= r) + { + m = (l + r) >> 1; + if (cid < font->hmtx[m].lo) + r = m - 1; + else if (cid > font->hmtx[m].hi) + l = m + 1; + else + return font->hmtx[m]; + } + +notfound: + return font->dhmtx; +} + +fz_vmtx +fz_getvmtx(fz_font *font, int cid) +{ + fz_hmtx h; + fz_vmtx v; + int l = 0; + int r = font->nvmtx - 1; + int m; + + if (!font->vmtx) + goto notfound; + + while (l <= r) + { + m = (l + r) >> 1; + if (cid < font->vmtx[m].lo) + r = m - 1; + else if (cid > font->vmtx[m].hi) + l = m + 1; + else + return font->vmtx[m]; + } + +notfound: + h = fz_gethmtx(font, cid); + v = font->dvmtx; + v.x = h.w / 2; + return v; +} + +void +fz_debugfont(fz_font *font) +{ + int i; + + printf("font '%s' {\n", font->name); + printf(" wmode %d\n", font->wmode); + printf(" bbox [%d %d %d %d]\n", + font->bbox.min.x, font->bbox.min.y, + font->bbox.max.x, font->bbox.max.y); + printf(" DW %d\n", font->dhmtx.w); + + printf(" W {\n"); + for (i = 0; i < font->nhmtx; i++) + printf(" <%04x> <%04x> %d\n", + font->hmtx[i].lo, font->hmtx[i].hi, font->hmtx[i].w); + printf(" }\n"); + + if (font->wmode) + { + printf(" DW2 [%d %d]\n", font->dvmtx.y, font->dvmtx.w); + printf(" W2 {\n"); + for (i = 0; i < font->nvmtx; i++) + printf(" <%04x> <%04x> %d %d %d\n", font->vmtx[i].lo, font->vmtx[i].hi, + font->vmtx[i].x, font->vmtx[i].y, font->vmtx[i].w); + printf(" }\n"); + } + + printf("}\n"); +} + |