pdf_store * pdf_newstore(void) { pdf_store *store; store = fz_malloc(sizeof(pdf_store)); store->hash = fz_newhash(4096, sizeof(struct refkey)); store->root = nil; return store; }
fz_error * pdf_newstore(pdf_store **storep) { fz_error *error; pdf_store *store; store = fz_malloc(sizeof(pdf_store)); if (!store) return fz_outofmem; error = fz_newhash(&store->hash, 4096, sizeof(struct refkey)); if (error) { fz_free(store); return error; } store->root = nil; *storep = store; return nil; }
static void fz_stdconvpixmap(fz_pixmap *src, fz_pixmap *dst) { float srcv[FZ_MAXCOLORS]; float dstv[FZ_MAXCOLORS]; int srcn, dstn; int y, x, k, i; fz_colorspace *ss = src->colorspace; fz_colorspace *ds = dst->colorspace; unsigned char *s = src->samples; unsigned char *d = dst->samples; assert(src->w == dst->w && src->h == dst->h); assert(src->n == ss->n + 1); assert(dst->n == ds->n + 1); srcn = ss->n; dstn = ds->n; /* Special case for Lab colorspace (scaling of components to float) */ if (!strcmp(ss->name, "Lab") && srcn == 3) { for (y = 0; y < src->h; y++) { for (x = 0; x < src->w; x++) { srcv[0] = *s++ / 255.0f * 100; srcv[1] = *s++ - 128; srcv[2] = *s++ - 128; fz_convertcolor(ss, srcv, ds, dstv); for (k = 0; k < dstn; k++) *d++ = dstv[k] * 255; *d++ = *s++; } } } /* Brute-force for small images */ else if (src->w * src->h < 256) { for (y = 0; y < src->h; y++) { for (x = 0; x < src->w; x++) { for (k = 0; k < srcn; k++) srcv[k] = *s++ / 255.0f; fz_convertcolor(ss, srcv, ds, dstv); for (k = 0; k < dstn; k++) *d++ = dstv[k] * 255; *d++ = *s++; } } } /* 1-d lookup table for separation and similar colorspaces */ else if (srcn == 1) { unsigned char lookup[FZ_MAXCOLORS * 256]; for (i = 0; i < 256; i++) { srcv[0] = i / 255.0f; fz_convertcolor(ss, srcv, ds, dstv); for (k = 0; k < dstn; k++) lookup[i * dstn + k] = dstv[k] * 255; } for (y = 0; y < src->h; y++) { for (x = 0; x < src->w; x++) { i = *s++; for (k = 0; k < dstn; k++) *d++ = lookup[i * dstn + k]; *d++ = *s++; } } } /* Memoize colors using a hash table for the general case */ else { fz_hashtable *lookup; unsigned char *color; lookup = fz_newhash(509, srcn); for (y = 0; y < src->h; y++) { for (x = 0; x < src->w; x++) { color = fz_hashfind(lookup, s); if (color) { memcpy(d, color, dstn); s += srcn; d += dstn; *d++ = *s++; } else { for (k = 0; k < srcn; k++) srcv[k] = *s++ / 255.0f; fz_convertcolor(ss, srcv, ds, dstv); for (k = 0; k < dstn; k++) *d++ = dstv[k] * 255; fz_hashinsert(lookup, s - srcn, d - dstn); *d++ = *s++; } } } fz_freehash(lookup); } }