Remove unused FcHash code now that FC_HASH is deprecated
This commit is contained in:
Behdad Esfahbod
parent
75abdaf5c8
commit
8f62ccaa96
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@ -139,7 +139,6 @@ libfontconfig_la_SOURCES = \
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fcformat.c \
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fcfreetype.c \
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fcfs.c \
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fchash.c \
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fcinit.c \
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fclang.c \
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fclist.c \
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@ -1697,57 +1697,6 @@ FcFreeTypeQueryFace (const FT_Face face,
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goto bail1;
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#if 0
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/*
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* Compute hash digest for the font
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*/
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{
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FcChar8 *hashstr = NULL;
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FcHashDigest digest;
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FcHashInitDigest (digest);
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if (face->stream->read == NULL)
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{
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const char *data = (const char *) face->stream->base;
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size_t total_len = face->stream->size;
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size_t len = total_len;
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while (len >= 64)
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{
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FcHashDigestAddBlock (digest, data);
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data += 64;
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len -= 64;
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}
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FcHashDigestFinish (digest, data, total_len);
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} else {
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char data[64];
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size_t total_len = 0;
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size_t len = 0;
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while ((len = face->stream->read (face->stream, total_len, (unsigned char *) data, sizeof(data))) == 64)
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{
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FcHashDigestAddBlock (digest, data);
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total_len += 64;
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}
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total_len += len;
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FcHashDigestFinish (digest, data, total_len);
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}
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hashstr = FcHashToString (digest);
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if (hashstr)
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{
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if (!FcPatternAddString (pat, FC_HASH, hashstr))
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{
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free (hashstr);
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goto bail1;
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}
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free (hashstr);
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}
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}
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#endif
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/*
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* Compute the unicode coverage for the font
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*/
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189
src/fchash.c
189
src/fchash.c
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@ -1,189 +0,0 @@
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/*
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* fontconfig/src/fchash.c
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*
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* Copyright © 2003 Keith Packard
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* Copyright © 2013 Red Hat, Inc.
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* Copyright © 2014 Google, Inc.
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* Red Hat Author(s): Akira TAGOH
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* Google Author(s): Behdad Esfahbod
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the author(s) not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. The authors make no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "fcint.h"
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#include <stdio.h>
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#include <string.h>
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/* SHA256 */
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#define ROTRN(w, v, n) ((((FcChar32)v) >> n) | (((FcChar32)v) << (w - n)))
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#define ROTR32(v, n) ROTRN(32, v, n)
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#define SHR(v, n) (v >> n)
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#define Ch(x, y, z) ((x & y) ^ (~x & z))
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#define Maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
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#define SS0(x) (ROTR32(x, 2) ^ ROTR32(x, 13) ^ ROTR32(x, 22))
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#define SS1(x) (ROTR32(x, 6) ^ ROTR32(x, 11) ^ ROTR32(x, 25))
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#define ss0(x) (ROTR32(x, 7) ^ ROTR32(x, 18) ^ SHR(x, 3))
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#define ss1(x) (ROTR32(x, 17) ^ ROTR32(x, 19) ^ SHR(x, 10))
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void
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FcHashInitDigest (FcHashDigest digest)
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{
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static const FcHashDigest init = {
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0x6a09e667UL, 0xbb67ae85UL, 0x3c6ef372UL, 0xa54ff53aUL,
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0x510e527fUL, 0x9b05688cUL, 0x1f83d9abUL, 0x5be0cd19UL
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};
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memcpy (digest, init, sizeof (FcHashDigest));
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}
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void
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FcHashDigestAddBlock (FcHashDigest digest,
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const char block[64])
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{
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static const FcChar32 k[] = {
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0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
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0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
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0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
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0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
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0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
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0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
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0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
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0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
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0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
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0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
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0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
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0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
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0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
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0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
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0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
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0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL
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};
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FcChar32 w[64], i, j, t1, t2;
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FcChar32 a, b, c, d, e, f, g, h;
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#define H(n) (digest[n])
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a = H(0);
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b = H(1);
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c = H(2);
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d = H(3);
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e = H(4);
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f = H(5);
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g = H(6);
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h = H(7);
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for (i = 0; i < 16; i++)
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{
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j = (block[(i * 4) + 0] & 0xff) << (8 * 3);
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j |= (block[(i * 4) + 1] & 0xff) << (8 * 2);
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j |= (block[(i * 4) + 2] & 0xff) << (8 * 1);
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j |= (block[(i * 4) + 3] & 0xff);
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w[i] = j;
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}
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for (i = 16; i < 64; i++)
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w[i] = ss1(w[i - 2]) + w[i - 7] + ss0(w[i - 15]) + w[i - 16];
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for (i = 0; i < 64; i++)
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{
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t1 = h + SS1(e) + Ch(e, f, g) + k[i] + w[i];
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t2 = SS0(a) + Maj(a, b, c);
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h = g;
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g = f;
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f = e;
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e = d + t1;
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d = c;
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c = b;
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b = a;
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a = t1 + t2;
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}
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H(0) += a;
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H(1) += b;
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H(2) += c;
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H(3) += d;
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H(4) += e;
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H(5) += f;
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H(6) += g;
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H(7) += h;
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#undef H
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}
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void
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FcHashDigestFinish (FcHashDigest digest,
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const char *residual, /* < 64 bytes */
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size_t total_len)
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{
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char ibuf[64];
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unsigned int len = total_len % 64;
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uint64_t v;
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if (!len)
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return;
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memcpy (ibuf, residual, len);
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memset (ibuf + len, 0, 64 - len);
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ibuf[len] = 0x80;
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if ((64 - len) < 9)
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{
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FcHashDigestAddBlock (digest, ibuf);
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memset (ibuf, 0, 64);
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}
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/* set input size at the end */
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v = (uint64_t) total_len * 8;
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ibuf[63 - 0] = v & 0xff;
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ibuf[63 - 1] = (v >> 8) & 0xff;
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ibuf[63 - 2] = (v >> 16) & 0xff;
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ibuf[63 - 3] = (v >> 24) & 0xff;
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ibuf[63 - 4] = (v >> 32) & 0xff;
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ibuf[63 - 5] = (v >> 40) & 0xff;
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ibuf[63 - 6] = (v >> 48) & 0xff;
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ibuf[63 - 7] = (v >> 56) & 0xff;
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FcHashDigestAddBlock (digest, ibuf);
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}
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FcChar8 *
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FcHashToString (const FcHashDigest digest)
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{
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FcChar8 *ret = NULL;
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static const char hex[] = "0123456789abcdef";
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int i, j;
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ret = malloc (sizeof (FcChar8) * (8 * 8 + 7 + 1));
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if (!ret)
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return NULL;
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memcpy (ret, "sha256:", 7);
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#define H(n) digest[n]
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for (i = 0; i < 8; i++)
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{
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FcChar32 v = H(i);
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for (j = 0; j < 8; j++)
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ret[7 + (i * 8) + j] = hex[(v >> (28 - j * 4)) & 0xf];
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}
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ret[7 + i * 8] = 0;
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#undef H
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return ret;
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}
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19
src/fcint.h
19
src/fcint.h
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@ -871,25 +871,6 @@ FcFontSetSerialize (FcSerialize *serialize, const FcFontSet * s);
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FcPrivate FcFontSet *
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FcFontSetDeserialize (const FcFontSet *set);
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/* fchash.c */
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typedef FcChar32 FcHashDigest[8];
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FcPrivate void
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FcHashInitDigest (FcHashDigest digest);
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FcPrivate void
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FcHashDigestAddBlock (FcHashDigest digest,
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const char block[64]);
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FcPrivate void
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FcHashDigestFinish (FcHashDigest digest,
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const char *residual, /* < 64 bytes */
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size_t total_len);
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FcPrivate FcChar8 *
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FcHashToString (const FcHashDigest digest);
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/* fcinit.c */
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FcPrivate FcConfig *
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FcInitLoadOwnConfig (FcConfig *config);
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