summaryrefslogtreecommitdiffstats
path: root/libass/mputils.c
diff options
context:
space:
mode:
Diffstat (limited to 'libass/mputils.c')
-rw-r--r--libass/mputils.c239
1 files changed, 0 insertions, 239 deletions
diff --git a/libass/mputils.c b/libass/mputils.c
deleted file mode 100644
index 7ab7bc0..0000000
--- a/libass/mputils.c
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- * Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
- *
- * This file is part of libass.
- *
- * libass is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * libass is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with libass; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-
-#include "mputils.h"
-
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#ifdef CONFIG_ENCA
-#include <enca.h>
-#endif
-
-void ass_msg(int lvl, char *fmt, ...)
-{
- va_list va;
- if (lvl > MSGL_INFO)
- return;
- va_start(va, fmt);
- vprintf(fmt, va);
- va_end(va);
-}
-
-unsigned ass_utf8_get_char(char **str)
-{
- uint8_t *strp = (uint8_t *) * str;
- unsigned c = *strp++;
- unsigned mask = 0x80;
- int len = -1;
- while (c & mask) {
- mask >>= 1;
- len++;
- }
- if (len <= 0 || len > 4)
- goto no_utf8;
- c &= mask - 1;
- while ((*strp & 0xc0) == 0x80) {
- if (len-- <= 0)
- goto no_utf8;
- c = (c << 6) | (*strp++ & 0x3f);
- }
- if (len)
- goto no_utf8;
- *str = (char *) strp;
- return c;
-
- no_utf8:
- strp = (uint8_t *) * str;
- c = *strp++;
- *str = (char *) strp;
- return c;
-}
-
-// gaussian blur
-void ass_gauss_blur(unsigned char *buffer,
- unsigned short *tmp2,
- int width, int height, int stride, int *m2, int r, int mwidth)
-{
-
- int x, y;
-
- unsigned char *s = buffer;
- unsigned short *t = tmp2 + 1;
- for (y = 0; y < height; y++) {
- memset(t - 1, 0, (width + 1) * sizeof(short));
-
- for (x = 0; x < r; x++) {
- const int src = s[x];
- if (src) {
- register unsigned short *dstp = t + x - r;
- int mx;
- unsigned *m3 = (unsigned *) (m2 + src * mwidth);
- for (mx = r - x; mx < mwidth; mx++) {
- dstp[mx] += m3[mx];
- }
- }
- }
-
- for (; x < width - r; x++) {
- const int src = s[x];
- if (src) {
- register unsigned short *dstp = t + x - r;
- int mx;
- unsigned *m3 = (unsigned *) (m2 + src * mwidth);
- for (mx = 0; mx < mwidth; mx++) {
- dstp[mx] += m3[mx];
- }
- }
- }
-
- for (; x < width; x++) {
- const int src = s[x];
- if (src) {
- register unsigned short *dstp = t + x - r;
- int mx;
- const int x2 = r + width - x;
- unsigned *m3 = (unsigned *) (m2 + src * mwidth);
- for (mx = 0; mx < x2; mx++) {
- dstp[mx] += m3[mx];
- }
- }
- }
-
- s += stride;
- t += width + 1;
- }
-
- t = tmp2;
- for (x = 0; x < width; x++) {
- for (y = 0; y < r; y++) {
- unsigned short *srcp = t + y * (width + 1) + 1;
- int src = *srcp;
- if (src) {
- register unsigned short *dstp = srcp - 1 + width + 1;
- const int src2 = (src + 128) >> 8;
- unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
-
- int mx;
- *srcp = 128;
- for (mx = r - 1; mx < mwidth; mx++) {
- *dstp += m3[mx];
- dstp += width + 1;
- }
- }
- }
- for (; y < height - r; y++) {
- unsigned short *srcp = t + y * (width + 1) + 1;
- int src = *srcp;
- if (src) {
- register unsigned short *dstp = srcp - 1 - r * (width + 1);
- const int src2 = (src + 128) >> 8;
- unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
-
- int mx;
- *srcp = 128;
- for (mx = 0; mx < mwidth; mx++) {
- *dstp += m3[mx];
- dstp += width + 1;
- }
- }
- }
- for (; y < height; y++) {
- unsigned short *srcp = t + y * (width + 1) + 1;
- int src = *srcp;
- if (src) {
- const int y2 = r + height - y;
- register unsigned short *dstp = srcp - 1 - r * (width + 1);
- const int src2 = (src + 128) >> 8;
- unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
-
- int mx;
- *srcp = 128;
- for (mx = 0; mx < y2; mx++) {
- *dstp += m3[mx];
- dstp += width + 1;
- }
- }
- }
- t++;
- }
-
- t = tmp2;
- s = buffer;
- for (y = 0; y < height; y++) {
- for (x = 0; x < width; x++) {
- s[x] = t[x] >> 8;
- }
- s += stride;
- t += width + 1;
- }
-}
-
-#ifdef CONFIG_ENCA
-void *ass_guess_buffer_cp(unsigned char *buffer, int buflen,
- char *preferred_language, char *fallback)
-{
- const char **languages;
- size_t langcnt;
- EncaAnalyser analyser;
- EncaEncoding encoding;
- char *detected_sub_cp = NULL;
- int i;
-
- languages = enca_get_languages(&langcnt);
- ass_msg(MSGL_V, "ENCA supported languages: ");
- for (i = 0; i < langcnt; i++) {
- ass_msg(MSGL_V, "%s ", languages[i]);
- }
- ass_msg(MSGL_V, "\n");
-
- for (i = 0; i < langcnt; i++) {
- const char *tmp;
-
- if (strcasecmp(languages[i], preferred_language) != 0)
- continue;
- analyser = enca_analyser_alloc(languages[i]);
- encoding = enca_analyse_const(analyser, buffer, buflen);
- tmp = enca_charset_name(encoding.charset, ENCA_NAME_STYLE_ICONV);
- if (tmp && encoding.charset != ENCA_CS_UNKNOWN) {
- detected_sub_cp = strdup(tmp);
- ass_msg(MSGL_INFO, "ENCA detected charset: %s\n", tmp);
- }
- enca_analyser_free(analyser);
- }
-
- free(languages);
-
- if (!detected_sub_cp) {
- detected_sub_cp = strdup(fallback);
- ass_msg(MSGL_INFO,
- "ENCA detection failed: fallback to %s\n", fallback);
- }
-
- return detected_sub_cp;
-}
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-05 09:28:08 +0000