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00025 #include <vlc_memory.h>
00026
00027 typedef struct font_stack_t font_stack_t;
00028 struct font_stack_t
00029 {
00030 char *psz_name;
00031 int i_size;
00032 uint32_t i_color;
00033 uint32_t i_karaoke_bg_color;
00034
00035 font_stack_t *p_next;
00036 };
00037
00038 static void SetupLine( filter_t *p_filter, const char *psz_text_in,
00039 UCHAR **psz_text_out, uint32_t *pi_runs,
00040 uint32_t **ppi_run_lengths, TR_FONT_STYLE_PTR **ppp_styles,
00041 TR_FONT_STYLE_PTR p_style );
00042
00043 static TR_FONT_STYLE_PTR GetStyleFromFontStack( filter_sys_t *p_sys,
00044 font_stack_t **p_fonts, bool b_bold, bool b_italic,
00045 bool b_uline, bool b_through );
00046
00047 static int PushFont( font_stack_t **p_font, const char *psz_name, int i_size,
00048 uint32_t i_color, uint32_t i_karaoke_bg_color )
00049 {
00050 font_stack_t *p_new;
00051
00052 if( !p_font )
00053 return VLC_EGENERIC;
00054
00055 p_new = malloc( sizeof( font_stack_t ) );
00056 if( ! p_new )
00057 return VLC_ENOMEM;
00058
00059 p_new->p_next = NULL;
00060
00061 if( psz_name )
00062 p_new->psz_name = strdup( psz_name );
00063 else
00064 p_new->psz_name = NULL;
00065
00066 p_new->i_size = i_size;
00067 p_new->i_color = i_color;
00068 p_new->i_karaoke_bg_color = i_karaoke_bg_color;
00069
00070 if( !*p_font )
00071 {
00072 *p_font = p_new;
00073 }
00074 else
00075 {
00076 font_stack_t *p_last;
00077
00078 for( p_last = *p_font;
00079 p_last->p_next;
00080 p_last = p_last->p_next )
00081 ;
00082
00083 p_last->p_next = p_new;
00084 }
00085 return VLC_SUCCESS;
00086 }
00087
00088 static int PopFont( font_stack_t **p_font )
00089 {
00090 font_stack_t *p_last, *p_next_to_last;
00091
00092 if( !p_font || !*p_font )
00093 return VLC_EGENERIC;
00094
00095 p_next_to_last = NULL;
00096 for( p_last = *p_font;
00097 p_last->p_next;
00098 p_last = p_last->p_next )
00099 {
00100 p_next_to_last = p_last;
00101 }
00102
00103 if( p_next_to_last )
00104 p_next_to_last->p_next = NULL;
00105 else
00106 *p_font = NULL;
00107
00108 free( p_last->psz_name );
00109 free( p_last );
00110
00111 return VLC_SUCCESS;
00112 }
00113
00114 static int PeekFont( font_stack_t **p_font, char **psz_name, int *i_size,
00115 uint32_t *i_color, uint32_t *i_karaoke_bg_color )
00116 {
00117 font_stack_t *p_last;
00118
00119 if( !p_font || !*p_font )
00120 return VLC_EGENERIC;
00121
00122 for( p_last=*p_font;
00123 p_last->p_next;
00124 p_last=p_last->p_next )
00125 ;
00126
00127 *psz_name = p_last->psz_name;
00128 *i_size = p_last->i_size;
00129 *i_color = p_last->i_color;
00130 *i_karaoke_bg_color = p_last->i_karaoke_bg_color;
00131
00132 return VLC_SUCCESS;
00133 }
00134
00135 static const struct {
00136 const char *psz_name;
00137 uint32_t i_value;
00138 } p_html_colors[] = {
00139
00140 { "Aqua", 0x00FFFF },
00141 { "Black", 0x000000 },
00142 { "Blue", 0x0000FF },
00143 { "Fuchsia", 0xFF00FF },
00144 { "Gray", 0x808080 },
00145 { "Green", 0x008000 },
00146 { "Lime", 0x00FF00 },
00147 { "Maroon", 0x800000 },
00148 { "Navy", 0x000080 },
00149 { "Olive", 0x808000 },
00150 { "Purple", 0x800080 },
00151 { "Red", 0xFF0000 },
00152 { "Silver", 0xC0C0C0 },
00153 { "Teal", 0x008080 },
00154 { "White", 0xFFFFFF },
00155 { "Yellow", 0xFFFF00 },
00156
00157
00158 { "AliceBlue", 0xF0F8FF },
00159 { "AntiqueWhite", 0xFAEBD7 },
00160 { "Aqua", 0x00FFFF },
00161 { "Aquamarine", 0x7FFFD4 },
00162 { "Azure", 0xF0FFFF },
00163 { "Beige", 0xF5F5DC },
00164 { "Bisque", 0xFFE4C4 },
00165 { "Black", 0x000000 },
00166 { "BlanchedAlmond", 0xFFEBCD },
00167 { "Blue", 0x0000FF },
00168 { "BlueViolet", 0x8A2BE2 },
00169 { "Brown", 0xA52A2A },
00170 { "BurlyWood", 0xDEB887 },
00171 { "CadetBlue", 0x5F9EA0 },
00172 { "Chartreuse", 0x7FFF00 },
00173 { "Chocolate", 0xD2691E },
00174 { "Coral", 0xFF7F50 },
00175 { "CornflowerBlue", 0x6495ED },
00176 { "Cornsilk", 0xFFF8DC },
00177 { "Crimson", 0xDC143C },
00178 { "Cyan", 0x00FFFF },
00179 { "DarkBlue", 0x00008B },
00180 { "DarkCyan", 0x008B8B },
00181 { "DarkGoldenRod", 0xB8860B },
00182 { "DarkGray", 0xA9A9A9 },
00183 { "DarkGrey", 0xA9A9A9 },
00184 { "DarkGreen", 0x006400 },
00185 { "DarkKhaki", 0xBDB76B },
00186 { "DarkMagenta", 0x8B008B },
00187 { "DarkOliveGreen", 0x556B2F },
00188 { "Darkorange", 0xFF8C00 },
00189 { "DarkOrchid", 0x9932CC },
00190 { "DarkRed", 0x8B0000 },
00191 { "DarkSalmon", 0xE9967A },
00192 { "DarkSeaGreen", 0x8FBC8F },
00193 { "DarkSlateBlue", 0x483D8B },
00194 { "DarkSlateGray", 0x2F4F4F },
00195 { "DarkSlateGrey", 0x2F4F4F },
00196 { "DarkTurquoise", 0x00CED1 },
00197 { "DarkViolet", 0x9400D3 },
00198 { "DeepPink", 0xFF1493 },
00199 { "DeepSkyBlue", 0x00BFFF },
00200 { "DimGray", 0x696969 },
00201 { "DimGrey", 0x696969 },
00202 { "DodgerBlue", 0x1E90FF },
00203 { "FireBrick", 0xB22222 },
00204 { "FloralWhite", 0xFFFAF0 },
00205 { "ForestGreen", 0x228B22 },
00206 { "Fuchsia", 0xFF00FF },
00207 { "Gainsboro", 0xDCDCDC },
00208 { "GhostWhite", 0xF8F8FF },
00209 { "Gold", 0xFFD700 },
00210 { "GoldenRod", 0xDAA520 },
00211 { "Gray", 0x808080 },
00212 { "Grey", 0x808080 },
00213 { "Green", 0x008000 },
00214 { "GreenYellow", 0xADFF2F },
00215 { "HoneyDew", 0xF0FFF0 },
00216 { "HotPink", 0xFF69B4 },
00217 { "IndianRed", 0xCD5C5C },
00218 { "Indigo", 0x4B0082 },
00219 { "Ivory", 0xFFFFF0 },
00220 { "Khaki", 0xF0E68C },
00221 { "Lavender", 0xE6E6FA },
00222 { "LavenderBlush", 0xFFF0F5 },
00223 { "LawnGreen", 0x7CFC00 },
00224 { "LemonChiffon", 0xFFFACD },
00225 { "LightBlue", 0xADD8E6 },
00226 { "LightCoral", 0xF08080 },
00227 { "LightCyan", 0xE0FFFF },
00228 { "LightGoldenRodYellow", 0xFAFAD2 },
00229 { "LightGray", 0xD3D3D3 },
00230 { "LightGrey", 0xD3D3D3 },
00231 { "LightGreen", 0x90EE90 },
00232 { "LightPink", 0xFFB6C1 },
00233 { "LightSalmon", 0xFFA07A },
00234 { "LightSeaGreen", 0x20B2AA },
00235 { "LightSkyBlue", 0x87CEFA },
00236 { "LightSlateGray", 0x778899 },
00237 { "LightSlateGrey", 0x778899 },
00238 { "LightSteelBlue", 0xB0C4DE },
00239 { "LightYellow", 0xFFFFE0 },
00240 { "Lime", 0x00FF00 },
00241 { "LimeGreen", 0x32CD32 },
00242 { "Linen", 0xFAF0E6 },
00243 { "Magenta", 0xFF00FF },
00244 { "Maroon", 0x800000 },
00245 { "MediumAquaMarine", 0x66CDAA },
00246 { "MediumBlue", 0x0000CD },
00247 { "MediumOrchid", 0xBA55D3 },
00248 { "MediumPurple", 0x9370D8 },
00249 { "MediumSeaGreen", 0x3CB371 },
00250 { "MediumSlateBlue", 0x7B68EE },
00251 { "MediumSpringGreen", 0x00FA9A },
00252 { "MediumTurquoise", 0x48D1CC },
00253 { "MediumVioletRed", 0xC71585 },
00254 { "MidnightBlue", 0x191970 },
00255 { "MintCream", 0xF5FFFA },
00256 { "MistyRose", 0xFFE4E1 },
00257 { "Moccasin", 0xFFE4B5 },
00258 { "NavajoWhite", 0xFFDEAD },
00259 { "Navy", 0x000080 },
00260 { "OldLace", 0xFDF5E6 },
00261 { "Olive", 0x808000 },
00262 { "OliveDrab", 0x6B8E23 },
00263 { "Orange", 0xFFA500 },
00264 { "OrangeRed", 0xFF4500 },
00265 { "Orchid", 0xDA70D6 },
00266 { "PaleGoldenRod", 0xEEE8AA },
00267 { "PaleGreen", 0x98FB98 },
00268 { "PaleTurquoise", 0xAFEEEE },
00269 { "PaleVioletRed", 0xD87093 },
00270 { "PapayaWhip", 0xFFEFD5 },
00271 { "PeachPuff", 0xFFDAB9 },
00272 { "Peru", 0xCD853F },
00273 { "Pink", 0xFFC0CB },
00274 { "Plum", 0xDDA0DD },
00275 { "PowderBlue", 0xB0E0E6 },
00276 { "Purple", 0x800080 },
00277 { "Red", 0xFF0000 },
00278 { "RosyBrown", 0xBC8F8F },
00279 { "RoyalBlue", 0x4169E1 },
00280 { "SaddleBrown", 0x8B4513 },
00281 { "Salmon", 0xFA8072 },
00282 { "SandyBrown", 0xF4A460 },
00283 { "SeaGreen", 0x2E8B57 },
00284 { "SeaShell", 0xFFF5EE },
00285 { "Sienna", 0xA0522D },
00286 { "Silver", 0xC0C0C0 },
00287 { "SkyBlue", 0x87CEEB },
00288 { "SlateBlue", 0x6A5ACD },
00289 { "SlateGray", 0x708090 },
00290 { "SlateGrey", 0x708090 },
00291 { "Snow", 0xFFFAFA },
00292 { "SpringGreen", 0x00FF7F },
00293 { "SteelBlue", 0x4682B4 },
00294 { "Tan", 0xD2B48C },
00295 { "Teal", 0x008080 },
00296 { "Thistle", 0xD8BFD8 },
00297 { "Tomato", 0xFF6347 },
00298 { "Turquoise", 0x40E0D0 },
00299 { "Violet", 0xEE82EE },
00300 { "Wheat", 0xF5DEB3 },
00301 { "White", 0xFFFFFF },
00302 { "WhiteSmoke", 0xF5F5F5 },
00303 { "Yellow", 0xFFFF00 },
00304 { "YellowGreen", 0x9ACD32 },
00305
00306 { NULL, 0 }
00307 };
00308
00309 static int HandleFontAttributes( xml_reader_t *p_xml_reader,
00310 font_stack_t **p_fonts, int i_scale )
00311 {
00312 int rv;
00313 char *psz_fontname = NULL;
00314 uint32_t i_font_color = 0xffffff;
00315 int i_font_alpha = 0;
00316 uint32_t i_karaoke_bg_color = 0x00ffffff;
00317 int i_font_size = 24;
00318
00319
00320
00321
00322 if( VLC_SUCCESS == PeekFont( p_fonts,
00323 &psz_fontname,
00324 &i_font_size,
00325 &i_font_color,
00326 &i_karaoke_bg_color ))
00327 {
00328 psz_fontname = strdup( psz_fontname );
00329 i_font_size = i_font_size * 1000 / i_scale;
00330 }
00331 i_font_alpha = (i_font_color >> 24) & 0xff;
00332 i_font_color &= 0x00ffffff;
00333
00334 while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
00335 {
00336 char *psz_name = xml_ReaderName( p_xml_reader );
00337 char *psz_value = xml_ReaderValue( p_xml_reader );
00338
00339 if( psz_name && psz_value )
00340 {
00341 if( !strcasecmp( "face", psz_name ) )
00342 {
00343 free( psz_fontname );
00344 psz_fontname = strdup( psz_value );
00345 }
00346 else if( !strcasecmp( "size", psz_name ) )
00347 {
00348 if( ( *psz_value == '+' ) || ( *psz_value == '-' ) )
00349 {
00350 int i_value = atoi( psz_value );
00351
00352 if( ( i_value >= -5 ) && ( i_value <= 5 ) )
00353 i_font_size += ( i_value * i_font_size ) / 10;
00354 else if( i_value < -5 )
00355 i_font_size = - i_value;
00356 else if( i_value > 5 )
00357 i_font_size = i_value;
00358 }
00359 else
00360 i_font_size = atoi( psz_value );
00361 }
00362 else if( !strcasecmp( "color", psz_name ) )
00363 {
00364 if( psz_value[0] == '#' )
00365 {
00366 i_font_color = strtol( psz_value + 1, NULL, 16 );
00367 i_font_color &= 0x00ffffff;
00368 }
00369 else
00370 {
00371 for( int i = 0; p_html_colors[i].psz_name != NULL; i++ )
00372 {
00373 if( !strncasecmp( psz_value, p_html_colors[i].psz_name, strlen(p_html_colors[i].psz_name) ) )
00374 {
00375 i_font_color = p_html_colors[i].i_value;
00376 break;
00377 }
00378 }
00379 }
00380 }
00381 else if( !strcasecmp( "alpha", psz_name ) &&
00382 ( psz_value[0] == '#' ) )
00383 {
00384 i_font_alpha = strtol( psz_value + 1, NULL, 16 );
00385 i_font_alpha &= 0xff;
00386 }
00387 }
00388 free( psz_name );
00389 free( psz_value );
00390 }
00391 rv = PushFont( p_fonts,
00392 psz_fontname,
00393 i_font_size * i_scale / 1000,
00394 (i_font_color & 0xffffff) | ((i_font_alpha & 0xff) << 24),
00395 i_karaoke_bg_color );
00396
00397 free( psz_fontname );
00398
00399 return rv;
00400 }
00401
00402 static void SetKaraokeLen( uint32_t i_runs, uint32_t *pi_run_lengths,
00403 uint32_t i_k_runs, uint32_t *pi_k_run_lengths )
00404 {
00405
00406
00407
00408
00409 if( pi_k_run_lengths )
00410 {
00411 int i_chars = 0;
00412 uint32_t i;
00413
00414
00415
00416 for( i = 0; i < i_runs; i++ )
00417 i_chars += pi_run_lengths[ i ];
00418
00419
00420
00421
00422 for( i = 0; i < i_k_runs; i++ )
00423 i_chars -= pi_k_run_lengths[ i ];
00424
00425 pi_k_run_lengths[ i_k_runs - 1 ] = i_chars;
00426 }
00427 }
00428
00429 static void SetupKaraoke( xml_reader_t *p_xml_reader, uint32_t *pi_k_runs,
00430 uint32_t **ppi_k_run_lengths,
00431 uint32_t **ppi_k_durations )
00432 {
00433 while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
00434 {
00435 char *psz_name = xml_ReaderName( p_xml_reader );
00436 char *psz_value = xml_ReaderValue( p_xml_reader );
00437
00438 if( psz_name && psz_value &&
00439 !strcasecmp( "t", psz_name ) )
00440 {
00441 if( ppi_k_durations && ppi_k_run_lengths )
00442 {
00443 (*pi_k_runs)++;
00444
00445 if( *ppi_k_durations )
00446 {
00447 *ppi_k_durations = realloc_or_free( *ppi_k_durations,
00448 *pi_k_runs * sizeof( uint32_t ) );
00449 }
00450 else if( *pi_k_runs == 1 )
00451 {
00452 *ppi_k_durations = (uint32_t *)
00453 malloc( *pi_k_runs * sizeof( uint32_t ) );
00454 }
00455
00456 if( *ppi_k_run_lengths )
00457 {
00458 *ppi_k_run_lengths = realloc_or_free( *ppi_k_run_lengths,
00459 *pi_k_runs * sizeof( uint32_t ) );
00460 }
00461 else if( *pi_k_runs == 1 )
00462 {
00463 *ppi_k_run_lengths = (uint32_t *)
00464 malloc( *pi_k_runs * sizeof( uint32_t ) );
00465 }
00466 if( *ppi_k_durations )
00467 (*ppi_k_durations)[ *pi_k_runs - 1 ] = atoi( psz_value );
00468
00469 if( *ppi_k_run_lengths )
00470 (*ppi_k_run_lengths)[ *pi_k_runs - 1 ] = 0;
00471 }
00472 }
00473 free( psz_name );
00474 free( psz_value );
00475 }
00476 }
00477
00478
00479 static void HandleWhiteSpace( char *psz_node )
00480 {
00481 char *s = strpbrk( psz_node, "\t\r\n " );
00482 while( s )
00483 {
00484 int i_whitespace = strspn( s, "\t\r\n " );
00485
00486 if( i_whitespace > 1 )
00487 memmove( &s[1],
00488 &s[i_whitespace],
00489 strlen( s ) - i_whitespace + 1 );
00490 *s++ = ' ';
00491
00492 s = strpbrk( s, "\t\r\n " );
00493 }
00494 }
00495
00496
00497 static int ProcessNodes( filter_t *p_filter,
00498 xml_reader_t *p_xml_reader,
00499 text_style_t *p_font_style,
00500 UCHAR *psz_text,
00501 int *pi_len,
00502
00503 uint32_t *pi_runs,
00504 uint32_t **ppi_run_lengths,
00505 TR_FONT_STYLE_PTR **ppp_styles,
00506
00507 bool b_karaoke,
00508 uint32_t *pi_k_runs,
00509 uint32_t **ppi_k_run_lengths,
00510 uint32_t **ppi_k_durations )
00511 {
00512 int rv = VLC_SUCCESS;
00513 filter_sys_t *p_sys = p_filter->p_sys;
00514 UCHAR *psz_text_orig = psz_text;
00515 font_stack_t *p_fonts = NULL;
00516 vlc_value_t val;
00517 int i_scale = 1000;
00518
00519 char *psz_node = NULL;
00520
00521 bool b_italic = false;
00522 bool b_bold = false;
00523 bool b_uline = false;
00524 bool b_through = false;
00525
00526 if( VLC_SUCCESS == var_Get( p_filter, "scale", &val ))
00527 i_scale = val.i_int;
00528
00529 if( p_font_style )
00530 {
00531 rv = PushFont( &p_fonts,
00532 p_font_style->psz_fontname,
00533 p_font_style->i_font_size * i_scale / 1000,
00534 (p_font_style->i_font_color & 0xffffff) |
00535 ((p_font_style->i_font_alpha & 0xff) << 24),
00536 (p_font_style->i_karaoke_background_color & 0xffffff) |
00537 ((p_font_style->i_karaoke_background_alpha & 0xff) << 24));
00538
00539 if( p_font_style->i_style_flags & STYLE_BOLD )
00540 b_bold = true;
00541 if( p_font_style->i_style_flags & STYLE_ITALIC )
00542 b_italic = true;
00543 if( p_font_style->i_style_flags & STYLE_UNDERLINE )
00544 b_uline = true;
00545 if( p_font_style->i_style_flags & STYLE_STRIKEOUT )
00546 b_through = true;
00547 }
00548 #ifdef HAVE_FONTCONFIG
00549 else
00550 {
00551 rv = PushFont( &p_fonts,
00552 TR_DEFAULT_FONT,
00553 p_sys->i_font_size,
00554 (p_sys->i_font_color & 0xffffff) |
00555 (((255-p_sys->i_font_opacity) & 0xff) << 24),
00556 0x00ffffff );
00557 }
00558 #endif
00559
00560 if( rv != VLC_SUCCESS )
00561 return rv;
00562
00563 while ( ( xml_ReaderRead( p_xml_reader ) == 1 ) )
00564 {
00565 switch ( xml_ReaderNodeType( p_xml_reader ) )
00566 {
00567 case XML_READER_NONE:
00568 break;
00569 case XML_READER_ENDELEM:
00570 psz_node = xml_ReaderName( p_xml_reader );
00571 if( psz_node )
00572 {
00573 if( !strcasecmp( "font", psz_node ) )
00574 PopFont( &p_fonts );
00575 else if( !strcasecmp( "b", psz_node ) )
00576 b_bold = false;
00577 else if( !strcasecmp( "i", psz_node ) )
00578 b_italic = false;
00579 else if( !strcasecmp( "u", psz_node ) )
00580 b_uline = false;
00581 else if( !strcasecmp( "s", psz_node ) )
00582 b_through = false;
00583
00584 free( psz_node );
00585 }
00586 break;
00587 case XML_READER_STARTELEM:
00588 psz_node = xml_ReaderName( p_xml_reader );
00589 if( psz_node )
00590 {
00591 if( !strcasecmp( "font", psz_node ) )
00592 rv = HandleFontAttributes( p_xml_reader, &p_fonts, i_scale );
00593 else if( !strcasecmp( "b", psz_node ) )
00594 b_bold = true;
00595 else if( !strcasecmp( "i", psz_node ) )
00596 b_italic = true;
00597 else if( !strcasecmp( "u", psz_node ) )
00598 b_uline = true;
00599 else if( !strcasecmp( "s", psz_node ) )
00600 b_through = true;
00601
00602 else if( !strcasecmp( "br", psz_node ) )
00603 {
00604 SetupLine( p_filter, "\n", &psz_text,
00605 pi_runs, ppi_run_lengths, ppp_styles,
00606 GetStyleFromFontStack( p_sys,
00607 &p_fonts,
00608 b_bold,
00609 b_italic,
00610 b_uline,
00611 b_through) );
00612 }
00613 else if( !strcasecmp( "k", psz_node ) )
00614 {
00615
00616 if( b_karaoke )
00617 {
00618 if( *pi_k_runs > 0 )
00619 {
00620 SetKaraokeLen( *pi_runs, *ppi_run_lengths,
00621 *pi_k_runs, *ppi_k_run_lengths );
00622 }
00623 SetupKaraoke( p_xml_reader, pi_k_runs,
00624 ppi_k_run_lengths, ppi_k_durations );
00625 }
00626 }
00627
00628 free( psz_node );
00629 }
00630 break;
00631 case XML_READER_TEXT:
00632 psz_node = xml_ReaderValue( p_xml_reader );
00633 if( psz_node )
00634 {
00635
00636 HandleWhiteSpace( psz_node );
00637 resolve_xml_special_chars( psz_node );
00638
00639 SetupLine( p_filter, psz_node, &psz_text,
00640 pi_runs, ppi_run_lengths, ppp_styles,
00641 GetStyleFromFontStack( p_sys,
00642 &p_fonts,
00643 b_bold,
00644 b_italic,
00645 b_uline,
00646 b_through) );
00647 free( psz_node );
00648 }
00649 break;
00650 }
00651 if( rv != VLC_SUCCESS )
00652 {
00653 psz_text = psz_text_orig;
00654 break;
00655 }
00656 }
00657 if( b_karaoke )
00658 {
00659 SetKaraokeLen( *pi_runs, *ppi_run_lengths,
00660 *pi_k_runs, *ppi_k_run_lengths );
00661 }
00662
00663 *pi_len = psz_text - psz_text_orig;
00664
00665 while( VLC_SUCCESS == PopFont( &p_fonts ) );
00666
00667 return rv;
00668 }
