Copy the following functions to libass to avoid dependency on the rest of mplayer:

guess_buffer_cp
utf8_get_char
blur



git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@20517 b3059339-0415-0410-9bf9-f77b7e298cf2

5 files changed, 201 insertions, 11 deletions

diff --git a/libass/ass.c b/libass/ass.c
index f55675bb05..a4039e9f2d 100644
--- a/libass/ass.c
+++ b/libass/ass.c
@@ -30,10 +30,6 @@
 #include <unistd.h>
 #include <inttypes.h>
 
-#ifdef HAVE_ENCA
-#include "subreader.h" // for guess_buffer_cp
-#endif
-
 #ifdef USE_ICONV
 #include <iconv.h>
 #endif
@@ -42,7 +38,6 @@
 #include "ass.h"
 #include "ass_utils.h"
 #include "ass_library.h"
-#include "libvo/sub.h" // for utf8_get_char
 
 typedef enum {PST_UNKNOWN = 0, PST_INFO, PST_STYLES, PST_EVENTS, PST_FONTS} parser_state_t;
 
@@ -810,7 +805,7 @@ static char* sub_recode(char* data, size_t size, char* codepage)
 		char enca_lang[3], enca_fallback[100];
 		if (sscanf(codepage, "enca:%2s:%99s", enca_lang, enca_fallback) == 2
 				|| sscanf(codepage, "ENCA:%2s:%99s", enca_lang, enca_fallback) == 2) {
-			cp_tmp = guess_buffer_cp((unsigned char*)data, size, enca_lang, enca_fallback);
+			cp_tmp = ass_guess_buffer_cp((unsigned char*)data, size, enca_lang, enca_fallback);
 		}
 #endif
 		if ((icdsc = iconv_open (tocp, cp_tmp)) != (iconv_t)(-1)){
@@ -996,7 +991,7 @@ static char* validate_fname(char* name)
 	q = fname = malloc(sz + 1);
 	p = name;
 	while (*p) {
-		code = utf8_get_char(&p);
+		code = ass_utf8_get_char(&p);
 		if (code == 0)
 			break;
 		if (	(code > 0x7F) ||
diff --git a/libass/ass_bitmap.c b/libass/ass_bitmap.c
index 244bfbf305..e2e8e8f62a 100644
--- a/libass/ass_bitmap.c
+++ b/libass/ass_bitmap.c
@@ -26,7 +26,6 @@
 #include FT_GLYPH_H
 
 #include "mp_msg.h"
-#include "libvo/font_load.h" // for blur()
 #include "ass_bitmap.h"
 
 struct ass_synth_priv_s {
@@ -90,6 +89,122 @@ static int generate_tables(ass_synth_priv_t* priv, double radius)
 	return 0;
 }
 
+static void 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= 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= 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= 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= 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= 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= 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;
+	}
+}
+
 static void resize_tmp(ass_synth_priv_t* priv, int w, int h)
 {
 	if (priv->tmp_w >= w && priv->tmp_h >= h)
diff --git a/libass/ass_render.c b/libass/ass_render.c
index 73d3cfba27..589a518cc9 100644
--- a/libass/ass_render.c
+++ b/libass/ass_render.c
@@ -38,8 +38,6 @@
 #include "ass_fontconfig.h"
 #include "ass_library.h"
 
-#include "libvo/sub.h" // for utf8_get_char
-
 #define MAX_GLYPHS 1000
 #define MAX_LINES 100
 
@@ -1079,7 +1077,7 @@ static unsigned get_next_char(char** str)
 			return ' ';
 		}
 	}
-	chr = utf8_get_char(&p);
+	chr = ass_utf8_get_char(&p);
 	*str = p;
 	return chr;
 }
diff --git a/libass/ass_utils.c b/libass/ass_utils.c
index 0758f7dbb7..6c3f9f0e77 100644
--- a/libass/ass_utils.c
+++ b/libass/ass_utils.c
@@ -22,9 +22,14 @@
 
 #include <stdlib.h>
 #include <inttypes.h>
+#include <string.h>
 #include <sys/time.h>
 #include <time.h>
 
+#ifdef HAVE_ENCA
+#include <enca.h>
+#endif
+
 #include "mp_msg.h"
 #include "ass_utils.h"
 
@@ -81,3 +86,74 @@ int strtocolor(char** q, uint32_t* res)
 	return result;
 }
 
+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;
+}
+
+#ifdef HAVE_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);
+    mp_msg(MSGT_SUBREADER, MSGL_V, "ENCA supported languages: ");
+    for (i = 0; i < langcnt; i++) {
+	mp_msg(MSGT_SUBREADER, MSGL_V, "%s ", languages[i]);
+    }
+    mp_msg(MSGT_SUBREADER, 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);
+	    mp_msg(MSGT_SUBREADER, MSGL_INFO, "ENCA detected charset: %s\n", tmp);
+	}
+	enca_analyser_free(analyser);
+    }
+    
+    free(languages);
+
+    if (!detected_sub_cp) {
+	detected_sub_cp = strdup(fallback);
+	mp_msg(MSGT_SUBREADER, MSGL_INFO, "ENCA detection failed: fallback to %s\n", fallback);
+    }
+
+    return detected_sub_cp;
+}
+#endif
diff --git a/libass/ass_utils.h b/libass/ass_utils.h
index c4453902bc..d98649ef50 100644
--- a/libass/ass_utils.h
+++ b/libass/ass_utils.h
@@ -25,5 +25,11 @@ int mystrtoi(char** p, int base, int* res);
 int mystrtou32(char** p, int base, uint32_t* res);
 int mystrtod(char** p, double* res);
 int strtocolor(char** q, uint32_t* res);
+unsigned ass_utf8_get_char(char **str);
+
+#ifdef HAVE_ENCA
+void* ass_guess_buffer_cp(unsigned char* buffer, int buflen, char *preferred_language, char *fallback);
+#endif
+
 #endif