| File: | ./freetype/ftobjs.c |
| Warning: | line 353, column 5 Value stored to 'x_shift' is never read |
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| 1 | /***************************************************************************/ |
| 2 | /* */ |
| 3 | /* ftobjs.c */ |
| 4 | /* */ |
| 5 | /* The FreeType private base classes (body). */ |
| 6 | /* */ |
| 7 | /* Copyright 1996-2018 by */ |
| 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
| 9 | /* */ |
| 10 | /* This file is part of the FreeType project, and may only be used, */ |
| 11 | /* modified, and distributed under the terms of the FreeType project */ |
| 12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
| 13 | /* this file you indicate that you have read the license and */ |
| 14 | /* understand and accept it fully. */ |
| 15 | /* */ |
| 16 | /***************************************************************************/ |
| 17 | |
| 18 | |
| 19 | #include "ft2build.h" |
| 20 | #include FT_LIST_H"ftlist.h" |
| 21 | #include FT_OUTLINE_H"ftoutln.h" |
| 22 | #include FT_FONT_FORMATS_H"ftfntfmt.h" |
| 23 | |
| 24 | #include FT_INTERNAL_VALIDATE_H"ftvalid.h" |
| 25 | #include FT_INTERNAL_OBJECTS_H"ftobjs.h" |
| 26 | #include FT_INTERNAL_DEBUG_H"ftdebug.h" |
| 27 | #include FT_INTERNAL_STREAM_H"ftstream.h" |
| 28 | #include FT_INTERNAL_SFNT_H"sfnt.h" /* for SFNT_Load_Table_Func */ |
| 29 | #include FT_INTERNAL_POSTSCRIPT_AUX_H"psaux.h" /* for PS_Driver */ |
| 30 | |
| 31 | #include FT_TRUETYPE_TABLES_H"tttables.h" |
| 32 | #include FT_TRUETYPE_TAGS_H"tttags.h" |
| 33 | #include FT_TRUETYPE_IDS_H"ttnameid.h" |
| 34 | |
| 35 | #include FT_SERVICE_GLYPH_DICT_H"svgldict.h" |
| 36 | #include FT_SERVICE_TT_CMAP_H"svttcmap.h" |
| 37 | |
| 38 | #include FT_DRIVER_H"ftdriver.h" |
| 39 | |
| 40 | |
| 41 | #define GRID_FIT_METRICS |
| 42 | |
| 43 | |
| 44 | /* forward declaration */ |
| 45 | static FT_Error |
| 46 | ft_open_face_internal( FT_Library library, |
| 47 | const FT_Open_Args* args, |
| 48 | FT_Long face_index, |
| 49 | FT_Face *aface, |
| 50 | FT_Bool test_mac_fonts ); |
| 51 | |
| 52 | |
| 53 | FT_BASE_DEF( FT_Pointer )FT_Pointer |
| 54 | ft_service_list_lookup( FT_ServiceDesc service_descriptors, |
| 55 | const char* service_id ) |
| 56 | { |
| 57 | FT_Pointer result = NULL((void*)0); |
| 58 | FT_ServiceDesc desc = service_descriptors; |
| 59 | |
| 60 | |
| 61 | if ( desc && service_id ) |
| 62 | { |
| 63 | for ( ; desc->serv_id != NULL((void*)0); desc++ ) |
| 64 | { |
| 65 | if ( ft_strcmpstrcmp( desc->serv_id, service_id ) == 0 ) |
| 66 | { |
| 67 | result = (FT_Pointer)desc->serv_data; |
| 68 | break; |
| 69 | } |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | return result; |
| 74 | } |
| 75 | |
| 76 | |
| 77 | FT_BASE_DEF( void )void |
| 78 | ft_validator_init( FT_Validator valid, |
| 79 | const FT_Byte* base, |
| 80 | const FT_Byte* limit, |
| 81 | FT_ValidationLevel level ) |
| 82 | { |
| 83 | valid->base = base; |
| 84 | valid->limit = limit; |
| 85 | valid->level = level; |
| 86 | valid->error = FT_Err_Ok; |
| 87 | } |
| 88 | |
| 89 | |
| 90 | FT_BASE_DEF( void )void |
| 91 | ft_validator_error( FT_Validator valid, |
| 92 | FT_Error error ) |
| 93 | { |
| 94 | /* since the cast below also disables the compiler's */ |
| 95 | /* type check, we introduce a dummy variable, which */ |
| 96 | /* will be optimized away */ |
| 97 | volatile ft_jmp_bufjmp_buf* jump_buffer = &valid->jump_buffer; |
| 98 | |
| 99 | |
| 100 | valid->error = error; |
| 101 | |
| 102 | /* throw away volatileness; use `jump_buffer' or the */ |
| 103 | /* compiler may warn about an unused local variable */ |
| 104 | ft_longjmplongjmp( *(ft_jmp_bufjmp_buf*) jump_buffer, 1 ); |
| 105 | } |
| 106 | |
| 107 | |
| 108 | /*************************************************************************/ |
| 109 | /*************************************************************************/ |
| 110 | /*************************************************************************/ |
| 111 | /**** ****/ |
| 112 | /**** ****/ |
| 113 | /**** S T R E A M ****/ |
| 114 | /**** ****/ |
| 115 | /**** ****/ |
| 116 | /*************************************************************************/ |
| 117 | /*************************************************************************/ |
| 118 | /*************************************************************************/ |
| 119 | |
| 120 | |
| 121 | /* create a new input stream from an FT_Open_Args structure */ |
| 122 | /* */ |
| 123 | FT_BASE_DEF( FT_Error )FT_Error |
| 124 | FT_Stream_New( FT_Library library, |
| 125 | const FT_Open_Args* args, |
| 126 | FT_Stream *astream ) |
| 127 | { |
| 128 | FT_Error error; |
| 129 | FT_Memory memory; |
| 130 | FT_Stream stream = NULL((void*)0); |
| 131 | |
| 132 | |
| 133 | *astream = NULL((void*)0); |
| 134 | |
| 135 | if ( !library ) |
| 136 | return FT_THROW( Invalid_Library_Handle )FT_Err_Invalid_Library_Handle; |
| 137 | |
| 138 | if ( !args ) |
| 139 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 140 | |
| 141 | memory = library->memory; |
| 142 | |
| 143 | if ( FT_NEW( stream )( ((stream) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(stream ) )), &error ))), error != 0 ) ) |
| 144 | goto Exit; |
| 145 | |
| 146 | stream->memory = memory; |
| 147 | |
| 148 | if ( args->flags & FT_OPEN_MEMORY0x1 ) |
| 149 | { |
| 150 | /* create a memory-based stream */ |
| 151 | FT_Stream_OpenMemory( stream, |
| 152 | (const FT_Byte*)args->memory_base, |
| 153 | (FT_ULong)args->memory_size ); |
| 154 | } |
| 155 | |
| 156 | #ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT |
| 157 | else if ( ( args->flags & FT_OPEN_STREAM0x2 ) && args->stream ) |
| 158 | { |
| 159 | /* use an existing, user-provided stream */ |
| 160 | |
| 161 | /* in this case, we do not need to allocate a new stream object */ |
| 162 | /* since the caller is responsible for closing it himself */ |
| 163 | FT_FREE( stream )do { ft_mem_free( memory, (stream) ); (stream) = ((void*)0); } while ( 0 ); |
| 164 | stream = args->stream; |
| 165 | } |
| 166 | |
| 167 | #endif |
| 168 | |
| 169 | else |
| 170 | error = FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 171 | |
| 172 | if ( error ) |
| 173 | FT_FREE( stream )do { ft_mem_free( memory, (stream) ); (stream) = ((void*)0); } while ( 0 ); |
| 174 | else |
| 175 | stream->memory = memory; /* just to be certain */ |
| 176 | |
| 177 | *astream = stream; |
| 178 | |
| 179 | Exit: |
| 180 | return error; |
| 181 | } |
| 182 | |
| 183 | |
| 184 | FT_BASE_DEF( void )void |
| 185 | FT_Stream_Free( FT_Stream stream, |
| 186 | FT_Int external ) |
| 187 | { |
| 188 | if ( stream ) |
| 189 | { |
| 190 | FT_Memory memory = stream->memory; |
| 191 | |
| 192 | |
| 193 | FT_Stream_Close( stream ); |
| 194 | |
| 195 | if ( !external ) |
| 196 | FT_FREE( stream )do { ft_mem_free( memory, (stream) ); (stream) = ((void*)0); } while ( 0 ); |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | |
| 201 | /*************************************************************************/ |
| 202 | /* */ |
| 203 | /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ |
| 204 | /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ |
| 205 | /* messages during execution. */ |
| 206 | /* */ |
| 207 | #undef FT_COMPONENTtrace_list |
| 208 | #define FT_COMPONENTtrace_list trace_objs |
| 209 | |
| 210 | |
| 211 | /*************************************************************************/ |
| 212 | /*************************************************************************/ |
| 213 | /*************************************************************************/ |
| 214 | /**** ****/ |
| 215 | /**** ****/ |
| 216 | /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/ |
| 217 | /**** ****/ |
| 218 | /**** ****/ |
| 219 | /*************************************************************************/ |
| 220 | /*************************************************************************/ |
| 221 | /*************************************************************************/ |
| 222 | |
| 223 | |
| 224 | static FT_Error |
| 225 | ft_glyphslot_init( FT_GlyphSlot slot ) |
| 226 | { |
| 227 | FT_Driver driver = slot->face->driver; |
| 228 | FT_Driver_Class clazz = driver->clazz; |
| 229 | FT_Memory memory = driver->root.memory; |
| 230 | FT_Error error = FT_Err_Ok; |
| 231 | FT_Slot_Internal internal = NULL((void*)0); |
| 232 | |
| 233 | |
| 234 | slot->library = driver->root.library; |
| 235 | |
| 236 | if ( FT_NEW( internal )( ((internal) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(internal ) )), &error ))), error != 0 ) ) |
| 237 | goto Exit; |
| 238 | |
| 239 | slot->internal = internal; |
| 240 | |
| 241 | if ( FT_DRIVER_USES_OUTLINES( driver )!( ( (FT_Module)(driver) )->clazz->module_flags & 0x200 ) ) |
| 242 | error = FT_GlyphLoader_New( memory, &internal->loader ); |
| 243 | |
| 244 | if ( !error && clazz->init_slot ) |
| 245 | error = clazz->init_slot( slot ); |
| 246 | |
| 247 | Exit: |
| 248 | return error; |
| 249 | } |
| 250 | |
| 251 | |
| 252 | FT_BASE_DEF( void )void |
| 253 | ft_glyphslot_free_bitmap( FT_GlyphSlot slot ) |
| 254 | { |
| 255 | if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP0x1U ) ) |
| 256 | { |
| 257 | FT_Memory memory = FT_FACE_MEMORY( slot->face )( (FT_Face)(slot->face) )->memory; |
| 258 | |
| 259 | |
| 260 | FT_FREE( slot->bitmap.buffer )do { ft_mem_free( memory, (slot->bitmap.buffer) ); (slot-> bitmap.buffer) = ((void*)0); } while ( 0 ); |
| 261 | slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP0x1U; |
| 262 | } |
| 263 | else |
| 264 | { |
| 265 | /* assume that the bitmap buffer was stolen or not */ |
| 266 | /* allocated from the heap */ |
| 267 | slot->bitmap.buffer = NULL((void*)0); |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | |
| 272 | FT_BASE_DEF( void )void |
| 273 | ft_glyphslot_preset_bitmap( FT_GlyphSlot slot, |
| 274 | FT_Render_Mode mode, |
| 275 | const FT_Vector* origin ) |
| 276 | { |
| 277 | FT_Outline* outline = &slot->outline; |
| 278 | FT_Bitmap* bitmap = &slot->bitmap; |
| 279 | |
| 280 | FT_Pixel_Mode pixel_mode; |
| 281 | |
| 282 | FT_BBox cbox; |
| 283 | FT_Pos x_shift = 0; |
| 284 | FT_Pos y_shift = 0; |
| 285 | FT_Pos x_left, y_top; |
| 286 | FT_Pos width, height, pitch; |
| 287 | |
| 288 | |
| 289 | if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP0x1U ) ) |
| 290 | return; |
| 291 | |
| 292 | if ( origin ) |
| 293 | { |
| 294 | x_shift = origin->x; |
| 295 | y_shift = origin->y; |
| 296 | } |
| 297 | |
| 298 | /* compute the control box, and grid-fit it, */ |
| 299 | /* taking into account the origin shift */ |
| 300 | FT_Outline_Get_CBox( outline, &cbox ); |
| 301 | |
| 302 | cbox.xMin += x_shift; |
| 303 | cbox.yMin += y_shift; |
| 304 | cbox.xMax += x_shift; |
| 305 | cbox.yMax += y_shift; |
| 306 | |
| 307 | switch ( mode ) |
| 308 | { |
| 309 | case FT_RENDER_MODE_MONO: |
| 310 | pixel_mode = FT_PIXEL_MODE_MONO; |
| 311 | #if 1 |
| 312 | /* undocumented but confirmed: bbox values get rounded */ |
| 313 | /* unless the rounded box can collapse for a narrow glyph */ |
| 314 | if ( cbox.xMax - cbox.xMin < 64 ) |
| 315 | { |
| 316 | cbox.xMin = FT_PIX_FLOOR( cbox.xMin )( (cbox.xMin) & ~( __typeof__ ( cbox.xMin ) )63 ); |
| 317 | cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax )( ((FT_Long)( (FT_ULong)((cbox.xMax)) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.xMax)) + (FT_ULong )(63) ) ) )63 ); |
| 318 | } |
| 319 | else |
| 320 | { |
| 321 | cbox.xMin = FT_PIX_ROUND_LONG( cbox.xMin )( ((FT_Long)( (FT_ULong)((cbox.xMin)) + (FT_ULong)(32) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.xMin)) + (FT_ULong )(32) ) ) )63 ); |
| 322 | cbox.xMax = FT_PIX_ROUND_LONG( cbox.xMax )( ((FT_Long)( (FT_ULong)((cbox.xMax)) + (FT_ULong)(32) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.xMax)) + (FT_ULong )(32) ) ) )63 ); |
| 323 | } |
| 324 | |
| 325 | if ( cbox.yMax - cbox.yMin < 64 ) |
| 326 | { |
| 327 | cbox.yMin = FT_PIX_FLOOR( cbox.yMin )( (cbox.yMin) & ~( __typeof__ ( cbox.yMin ) )63 ); |
| 328 | cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax )( ((FT_Long)( (FT_ULong)((cbox.yMax)) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.yMax)) + (FT_ULong )(63) ) ) )63 ); |
| 329 | } |
| 330 | else |
| 331 | { |
| 332 | cbox.yMin = FT_PIX_ROUND_LONG( cbox.yMin )( ((FT_Long)( (FT_ULong)((cbox.yMin)) + (FT_ULong)(32) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.yMin)) + (FT_ULong )(32) ) ) )63 ); |
| 333 | cbox.yMax = FT_PIX_ROUND_LONG( cbox.yMax )( ((FT_Long)( (FT_ULong)((cbox.yMax)) + (FT_ULong)(32) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.yMax)) + (FT_ULong )(32) ) ) )63 ); |
| 334 | } |
| 335 | #else |
| 336 | cbox.xMin = FT_PIX_FLOOR( cbox.xMin )( (cbox.xMin) & ~( __typeof__ ( cbox.xMin ) )63 ); |
| 337 | cbox.yMin = FT_PIX_FLOOR( cbox.yMin )( (cbox.yMin) & ~( __typeof__ ( cbox.yMin ) )63 ); |
| 338 | cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax )( ((FT_Long)( (FT_ULong)((cbox.xMax)) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.xMax)) + (FT_ULong )(63) ) ) )63 ); |
| 339 | cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax )( ((FT_Long)( (FT_ULong)((cbox.yMax)) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.yMax)) + (FT_ULong )(63) ) ) )63 ); |
| 340 | #endif |
| 341 | break; |
| 342 | |
| 343 | case FT_RENDER_MODE_NORMAL: |
| 344 | case FT_RENDER_MODE_LIGHT: |
| 345 | default: |
| 346 | pixel_mode = FT_PIXEL_MODE_GRAY; |
| 347 | cbox.xMin = FT_PIX_FLOOR( cbox.xMin )( (cbox.xMin) & ~( __typeof__ ( cbox.xMin ) )63 ); |
| 348 | cbox.yMin = FT_PIX_FLOOR( cbox.yMin )( (cbox.yMin) & ~( __typeof__ ( cbox.yMin ) )63 ); |
| 349 | cbox.xMax = FT_PIX_CEIL_LONG( cbox.xMax )( ((FT_Long)( (FT_ULong)((cbox.xMax)) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.xMax)) + (FT_ULong )(63) ) ) )63 ); |
| 350 | cbox.yMax = FT_PIX_CEIL_LONG( cbox.yMax )( ((FT_Long)( (FT_ULong)((cbox.yMax)) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((cbox.yMax)) + (FT_ULong )(63) ) ) )63 ); |
| 351 | } |
| 352 | |
| 353 | x_shift = SUB_LONG( x_shift, cbox.xMin )(FT_Long)( (FT_ULong)(x_shift) - (FT_ULong)(cbox.xMin) ); |
Value stored to 'x_shift' is never read | |
| 354 | y_shift = SUB_LONG( y_shift, cbox.yMin )(FT_Long)( (FT_ULong)(y_shift) - (FT_ULong)(cbox.yMin) ); |
| 355 | |
| 356 | x_left = cbox.xMin >> 6; |
| 357 | y_top = cbox.yMax >> 6; |
| 358 | |
| 359 | width = ( (FT_ULong)cbox.xMax - (FT_ULong)cbox.xMin ) >> 6; |
| 360 | height = ( (FT_ULong)cbox.yMax - (FT_ULong)cbox.yMin ) >> 6; |
| 361 | |
| 362 | switch ( pixel_mode ) |
| 363 | { |
| 364 | case FT_PIXEL_MODE_MONO: |
| 365 | pitch = ( ( width + 15 ) >> 4 ) << 1; |
| 366 | break; |
| 367 | |
| 368 | case FT_PIXEL_MODE_GRAY: |
| 369 | default: |
| 370 | pitch = width; |
| 371 | } |
| 372 | |
| 373 | slot->bitmap_left = (FT_Int)x_left; |
| 374 | slot->bitmap_top = (FT_Int)y_top; |
| 375 | |
| 376 | bitmap->pixel_mode = (unsigned char)pixel_mode; |
| 377 | bitmap->num_grays = 256; |
| 378 | bitmap->width = (unsigned int)width; |
| 379 | bitmap->rows = (unsigned int)height; |
| 380 | bitmap->pitch = pitch; |
| 381 | } |
| 382 | |
| 383 | |
| 384 | FT_BASE_DEF( void )void |
| 385 | ft_glyphslot_set_bitmap( FT_GlyphSlot slot, |
| 386 | FT_Byte* buffer ) |
| 387 | { |
| 388 | ft_glyphslot_free_bitmap( slot ); |
| 389 | |
| 390 | slot->bitmap.buffer = buffer; |
| 391 | |
| 392 | FT_ASSERT( (slot->internal->flags & FT_GLYPH_OWN_BITMAP) == 0 )do { } while ( 0 ); |
| 393 | } |
| 394 | |
| 395 | |
| 396 | FT_BASE_DEF( FT_Error )FT_Error |
| 397 | ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot, |
| 398 | FT_ULong size ) |
| 399 | { |
| 400 | FT_Memory memory = FT_FACE_MEMORY( slot->face )( (FT_Face)(slot->face) )->memory; |
| 401 | FT_Error error; |
| 402 | |
| 403 | |
| 404 | if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP0x1U ) |
| 405 | FT_FREE( slot->bitmap.buffer )do { ft_mem_free( memory, (slot->bitmap.buffer) ); (slot-> bitmap.buffer) = ((void*)0); } while ( 0 ); |
| 406 | else |
| 407 | slot->internal->flags |= FT_GLYPH_OWN_BITMAP0x1U; |
| 408 | |
| 409 | (void)FT_ALLOC( slot->bitmap.buffer, size )( ((slot->bitmap.buffer) = (ft_mem_alloc( memory, (FT_Long )(size), &error ))), error != 0 ); |
| 410 | return error; |
| 411 | } |
| 412 | |
| 413 | |
| 414 | static void |
| 415 | ft_glyphslot_clear( FT_GlyphSlot slot ) |
| 416 | { |
| 417 | /* free bitmap if needed */ |
| 418 | ft_glyphslot_free_bitmap( slot ); |
| 419 | |
| 420 | /* clear all public fields in the glyph slot */ |
| 421 | FT_ZERO( &slot->metrics )memset( &slot->metrics, 0, (FT_Offset)(sizeof ( *(& slot->metrics) )) ); |
| 422 | FT_ZERO( &slot->outline )memset( &slot->outline, 0, (FT_Offset)(sizeof ( *(& slot->outline) )) ); |
| 423 | |
| 424 | slot->bitmap.width = 0; |
| 425 | slot->bitmap.rows = 0; |
| 426 | slot->bitmap.pitch = 0; |
| 427 | slot->bitmap.pixel_mode = 0; |
| 428 | /* `slot->bitmap.buffer' has been handled by ft_glyphslot_free_bitmap */ |
| 429 | |
| 430 | slot->bitmap_left = 0; |
| 431 | slot->bitmap_top = 0; |
| 432 | slot->num_subglyphs = 0; |
| 433 | slot->subglyphs = NULL((void*)0); |
| 434 | slot->control_data = NULL((void*)0); |
| 435 | slot->control_len = 0; |
| 436 | slot->other = NULL((void*)0); |
| 437 | slot->format = FT_GLYPH_FORMAT_NONE; |
| 438 | |
| 439 | slot->linearHoriAdvance = 0; |
| 440 | slot->linearVertAdvance = 0; |
| 441 | slot->lsb_delta = 0; |
| 442 | slot->rsb_delta = 0; |
| 443 | } |
| 444 | |
| 445 | |
| 446 | static void |
| 447 | ft_glyphslot_done( FT_GlyphSlot slot ) |
| 448 | { |
| 449 | FT_Driver driver = slot->face->driver; |
| 450 | FT_Driver_Class clazz = driver->clazz; |
| 451 | FT_Memory memory = driver->root.memory; |
| 452 | |
| 453 | |
| 454 | if ( clazz->done_slot ) |
| 455 | clazz->done_slot( slot ); |
| 456 | |
| 457 | /* free bitmap buffer if needed */ |
| 458 | ft_glyphslot_free_bitmap( slot ); |
| 459 | |
| 460 | /* slot->internal might be NULL in out-of-memory situations */ |
| 461 | if ( slot->internal ) |
| 462 | { |
| 463 | /* free glyph loader */ |
| 464 | if ( FT_DRIVER_USES_OUTLINES( driver )!( ( (FT_Module)(driver) )->clazz->module_flags & 0x200 ) ) |
| 465 | { |
| 466 | FT_GlyphLoader_Done( slot->internal->loader ); |
| 467 | slot->internal->loader = NULL((void*)0); |
| 468 | } |
| 469 | |
| 470 | FT_FREE( slot->internal )do { ft_mem_free( memory, (slot->internal) ); (slot->internal ) = ((void*)0); } while ( 0 ); |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | |
| 475 | /* documentation is in ftobjs.h */ |
| 476 | |
| 477 | FT_BASE_DEF( FT_Error )FT_Error |
| 478 | FT_New_GlyphSlot( FT_Face face, |
| 479 | FT_GlyphSlot *aslot ) |
| 480 | { |
| 481 | FT_Error error; |
| 482 | FT_Driver driver; |
| 483 | FT_Driver_Class clazz; |
| 484 | FT_Memory memory; |
| 485 | FT_GlyphSlot slot = NULL((void*)0); |
| 486 | |
| 487 | |
| 488 | if ( !face ) |
| 489 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 490 | |
| 491 | if ( !face->driver ) |
| 492 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 493 | |
| 494 | driver = face->driver; |
| 495 | clazz = driver->clazz; |
| 496 | memory = driver->root.memory; |
| 497 | |
| 498 | FT_TRACE4(( "FT_New_GlyphSlot: Creating new slot object\n" ))do { } while ( 0 ); |
| 499 | if ( !FT_ALLOC( slot, clazz->slot_object_size )( ((slot) = (ft_mem_alloc( memory, (FT_Long)(clazz->slot_object_size ), &error ))), error != 0 ) ) |
| 500 | { |
| 501 | slot->face = face; |
| 502 | |
| 503 | error = ft_glyphslot_init( slot ); |
| 504 | if ( error ) |
| 505 | { |
| 506 | ft_glyphslot_done( slot ); |
| 507 | FT_FREE( slot )do { ft_mem_free( memory, (slot) ); (slot) = ((void*)0); } while ( 0 ); |
| 508 | goto Exit; |
| 509 | } |
| 510 | |
| 511 | slot->next = face->glyph; |
| 512 | face->glyph = slot; |
| 513 | |
| 514 | if ( aslot ) |
| 515 | *aslot = slot; |
| 516 | } |
| 517 | else if ( aslot ) |
| 518 | *aslot = NULL((void*)0); |
| 519 | |
| 520 | |
| 521 | Exit: |
| 522 | FT_TRACE4(( "FT_New_GlyphSlot: Return 0x%x\n", error ))do { } while ( 0 ); |
| 523 | |
| 524 | return error; |
| 525 | } |
| 526 | |
| 527 | |
| 528 | /* documentation is in ftobjs.h */ |
| 529 | |
| 530 | FT_BASE_DEF( void )void |
| 531 | FT_Done_GlyphSlot( FT_GlyphSlot slot ) |
| 532 | { |
| 533 | if ( slot ) |
| 534 | { |
| 535 | FT_Driver driver = slot->face->driver; |
| 536 | FT_Memory memory = driver->root.memory; |
| 537 | FT_GlyphSlot prev; |
| 538 | FT_GlyphSlot cur; |
| 539 | |
| 540 | |
| 541 | /* Remove slot from its parent face's list */ |
| 542 | prev = NULL((void*)0); |
| 543 | cur = slot->face->glyph; |
| 544 | |
| 545 | while ( cur ) |
| 546 | { |
| 547 | if ( cur == slot ) |
| 548 | { |
| 549 | if ( !prev ) |
| 550 | slot->face->glyph = cur->next; |
| 551 | else |
| 552 | prev->next = cur->next; |
| 553 | |
| 554 | /* finalize client-specific data */ |
| 555 | if ( slot->generic.finalizer ) |
| 556 | slot->generic.finalizer( slot ); |
| 557 | |
| 558 | ft_glyphslot_done( slot ); |
| 559 | FT_FREE( slot )do { ft_mem_free( memory, (slot) ); (slot) = ((void*)0); } while ( 0 ); |
| 560 | break; |
| 561 | } |
| 562 | prev = cur; |
| 563 | cur = cur->next; |
| 564 | } |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | |
| 569 | /* documentation is in freetype.h */ |
| 570 | |
| 571 | FT_EXPORT_DEF( void )extern void |
| 572 | FT_Set_Transform( FT_Face face, |
| 573 | FT_Matrix* matrix, |
| 574 | FT_Vector* delta ) |
| 575 | { |
| 576 | FT_Face_Internal internal; |
| 577 | |
| 578 | |
| 579 | if ( !face ) |
| 580 | return; |
| 581 | |
| 582 | internal = face->internal; |
| 583 | |
| 584 | internal->transform_flags = 0; |
| 585 | |
| 586 | if ( !matrix ) |
| 587 | { |
| 588 | internal->transform_matrix.xx = 0x10000L; |
| 589 | internal->transform_matrix.xy = 0; |
| 590 | internal->transform_matrix.yx = 0; |
| 591 | internal->transform_matrix.yy = 0x10000L; |
| 592 | |
| 593 | matrix = &internal->transform_matrix; |
| 594 | } |
| 595 | else |
| 596 | internal->transform_matrix = *matrix; |
| 597 | |
| 598 | /* set transform_flags bit flag 0 if `matrix' isn't the identity */ |
| 599 | if ( ( matrix->xy | matrix->yx ) || |
| 600 | matrix->xx != 0x10000L || |
| 601 | matrix->yy != 0x10000L ) |
| 602 | internal->transform_flags |= 1; |
| 603 | |
| 604 | if ( !delta ) |
| 605 | { |
| 606 | internal->transform_delta.x = 0; |
| 607 | internal->transform_delta.y = 0; |
| 608 | |
| 609 | delta = &internal->transform_delta; |
| 610 | } |
| 611 | else |
| 612 | internal->transform_delta = *delta; |
| 613 | |
| 614 | /* set transform_flags bit flag 1 if `delta' isn't the null vector */ |
| 615 | if ( delta->x | delta->y ) |
| 616 | internal->transform_flags |= 2; |
| 617 | } |
| 618 | |
| 619 | |
| 620 | static FT_Renderer |
| 621 | ft_lookup_glyph_renderer( FT_GlyphSlot slot ); |
| 622 | |
| 623 | |
| 624 | #ifdef GRID_FIT_METRICS |
| 625 | static void |
| 626 | ft_glyphslot_grid_fit_metrics( FT_GlyphSlot slot, |
| 627 | FT_Bool vertical ) |
| 628 | { |
| 629 | FT_Glyph_Metrics* metrics = &slot->metrics; |
| 630 | FT_Pos right, bottom; |
| 631 | |
| 632 | |
| 633 | if ( vertical ) |
| 634 | { |
| 635 | metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX )( (metrics->horiBearingX) & ~( __typeof__ ( metrics-> horiBearingX ) )63 ); |
| 636 | metrics->horiBearingY = FT_PIX_CEIL_LONG( metrics->horiBearingY )( ((FT_Long)( (FT_ULong)((metrics->horiBearingY)) + (FT_ULong )(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((metrics ->horiBearingY)) + (FT_ULong)(63) ) ) )63 ); |
| 637 | |
| 638 | right = FT_PIX_CEIL_LONG( ADD_LONG( metrics->vertBearingX,( ((FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong)(metrics->vertBearingX ) + (FT_ULong)(metrics->width) ))) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong) (metrics->vertBearingX) + (FT_ULong)(metrics->width) )) ) + (FT_ULong)(63) ) ) )63 ) |
| 639 | metrics->width ) )( ((FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong)(metrics->vertBearingX ) + (FT_ULong)(metrics->width) ))) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong) (metrics->vertBearingX) + (FT_ULong)(metrics->width) )) ) + (FT_ULong)(63) ) ) )63 ); |
| 640 | bottom = FT_PIX_CEIL_LONG( ADD_LONG( metrics->vertBearingY,( ((FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong)(metrics->vertBearingY ) + (FT_ULong)(metrics->height) ))) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong) (metrics->vertBearingY) + (FT_ULong)(metrics->height) ) )) + (FT_ULong)(63) ) ) )63 ) |
| 641 | metrics->height ) )( ((FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong)(metrics->vertBearingY ) + (FT_ULong)(metrics->height) ))) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong) (metrics->vertBearingY) + (FT_ULong)(metrics->height) ) )) + (FT_ULong)(63) ) ) )63 ); |
| 642 | |
| 643 | metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX )( (metrics->vertBearingX) & ~( __typeof__ ( metrics-> vertBearingX ) )63 ); |
| 644 | metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY )( (metrics->vertBearingY) & ~( __typeof__ ( metrics-> vertBearingY ) )63 ); |
| 645 | |
| 646 | metrics->width = SUB_LONG( right,(FT_Long)( (FT_ULong)(right) - (FT_ULong)(metrics->vertBearingX ) ) |
| 647 | metrics->vertBearingX )(FT_Long)( (FT_ULong)(right) - (FT_ULong)(metrics->vertBearingX ) ); |
| 648 | metrics->height = SUB_LONG( bottom,(FT_Long)( (FT_ULong)(bottom) - (FT_ULong)(metrics->vertBearingY ) ) |
| 649 | metrics->vertBearingY )(FT_Long)( (FT_ULong)(bottom) - (FT_ULong)(metrics->vertBearingY ) ); |
| 650 | } |
| 651 | else |
| 652 | { |
| 653 | metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX )( (metrics->vertBearingX) & ~( __typeof__ ( metrics-> vertBearingX ) )63 ); |
| 654 | metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY )( (metrics->vertBearingY) & ~( __typeof__ ( metrics-> vertBearingY ) )63 ); |
| 655 | |
| 656 | right = FT_PIX_CEIL_LONG( ADD_LONG( metrics->horiBearingX,( ((FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong)(metrics->horiBearingX ) + (FT_ULong)(metrics->width) ))) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong) (metrics->horiBearingX) + (FT_ULong)(metrics->width) )) ) + (FT_ULong)(63) ) ) )63 ) |
| 657 | metrics->width ) )( ((FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong)(metrics->horiBearingX ) + (FT_ULong)(metrics->width) ))) + (FT_ULong)(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)(((FT_Long)( (FT_ULong) (metrics->horiBearingX) + (FT_ULong)(metrics->width) )) ) + (FT_ULong)(63) ) ) )63 ); |
| 658 | bottom = FT_PIX_FLOOR( SUB_LONG( metrics->horiBearingY,( ((FT_Long)( (FT_ULong)(metrics->horiBearingY) - (FT_ULong )(metrics->height) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong )(metrics->horiBearingY) - (FT_ULong)(metrics->height) ) ) )63 ) |
| 659 | metrics->height ) )( ((FT_Long)( (FT_ULong)(metrics->horiBearingY) - (FT_ULong )(metrics->height) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong )(metrics->horiBearingY) - (FT_ULong)(metrics->height) ) ) )63 ); |
| 660 | |
| 661 | metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX )( (metrics->horiBearingX) & ~( __typeof__ ( metrics-> horiBearingX ) )63 ); |
| 662 | metrics->horiBearingY = FT_PIX_CEIL_LONG( metrics->horiBearingY )( ((FT_Long)( (FT_ULong)((metrics->horiBearingY)) + (FT_ULong )(63) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((metrics ->horiBearingY)) + (FT_ULong)(63) ) ) )63 ); |
| 663 | |
| 664 | metrics->width = SUB_LONG( right,(FT_Long)( (FT_ULong)(right) - (FT_ULong)(metrics->horiBearingX ) ) |
| 665 | metrics->horiBearingX )(FT_Long)( (FT_ULong)(right) - (FT_ULong)(metrics->horiBearingX ) ); |
| 666 | metrics->height = SUB_LONG( metrics->horiBearingY,(FT_Long)( (FT_ULong)(metrics->horiBearingY) - (FT_ULong)( bottom) ) |
| 667 | bottom )(FT_Long)( (FT_ULong)(metrics->horiBearingY) - (FT_ULong)( bottom) ); |
| 668 | } |
| 669 | |
| 670 | metrics->horiAdvance = FT_PIX_ROUND_LONG( metrics->horiAdvance )( ((FT_Long)( (FT_ULong)((metrics->horiAdvance)) + (FT_ULong )(32) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((metrics ->horiAdvance)) + (FT_ULong)(32) ) ) )63 ); |
| 671 | metrics->vertAdvance = FT_PIX_ROUND_LONG( metrics->vertAdvance )( ((FT_Long)( (FT_ULong)((metrics->vertAdvance)) + (FT_ULong )(32) )) & ~( __typeof__ ( (FT_Long)( (FT_ULong)((metrics ->vertAdvance)) + (FT_ULong)(32) ) ) )63 ); |
| 672 | } |
| 673 | #endif /* GRID_FIT_METRICS */ |
| 674 | |
| 675 | |
| 676 | /* documentation is in freetype.h */ |
| 677 | |
| 678 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 679 | FT_Load_Glyph( FT_Face face, |
| 680 | FT_UInt glyph_index, |
| 681 | FT_Int32 load_flags ) |
| 682 | { |
| 683 | FT_Error error; |
| 684 | FT_Driver driver; |
| 685 | FT_GlyphSlot slot; |
| 686 | FT_Library library; |
| 687 | FT_Bool autohint = FALSE0; |
| 688 | FT_Module hinter; |
| 689 | TT_Face ttface = (TT_Face)face; |
| 690 | |
| 691 | |
| 692 | if ( !face || !face->size || !face->glyph ) |
| 693 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 694 | |
| 695 | /* The validity test for `glyph_index' is performed by the */ |
| 696 | /* font drivers. */ |
| 697 | |
| 698 | slot = face->glyph; |
| 699 | ft_glyphslot_clear( slot ); |
| 700 | |
| 701 | driver = face->driver; |
| 702 | library = driver->root.library; |
| 703 | hinter = library->auto_hinter; |
| 704 | |
| 705 | /* resolve load flags dependencies */ |
| 706 | |
| 707 | if ( load_flags & FT_LOAD_NO_RECURSE( 1L << 10 ) ) |
| 708 | load_flags |= FT_LOAD_NO_SCALE( 1L << 0 ) | |
| 709 | FT_LOAD_IGNORE_TRANSFORM( 1L << 11 ); |
| 710 | |
| 711 | if ( load_flags & FT_LOAD_NO_SCALE( 1L << 0 ) ) |
| 712 | { |
| 713 | load_flags |= FT_LOAD_NO_HINTING( 1L << 1 ) | |
| 714 | FT_LOAD_NO_BITMAP( 1L << 3 ); |
| 715 | |
| 716 | load_flags &= ~FT_LOAD_RENDER( 1L << 2 ); |
| 717 | } |
| 718 | |
| 719 | if ( load_flags & FT_LOAD_BITMAP_METRICS_ONLY( 1L << 22 ) ) |
| 720 | load_flags &= ~FT_LOAD_RENDER( 1L << 2 ); |
| 721 | |
| 722 | /* |
| 723 | * Determine whether we need to auto-hint or not. |
| 724 | * The general rules are: |
| 725 | * |
| 726 | * - Do only auto-hinting if we have |
| 727 | * |
| 728 | * - a hinter module, |
| 729 | * - a scalable font format dealing with outlines, |
| 730 | * - not a tricky font, and |
| 731 | * - no transforms except simple slants and/or rotations by |
| 732 | * integer multiples of 90 degrees. |
| 733 | * |
| 734 | * - Then, auto-hint if FT_LOAD_FORCE_AUTOHINT is set or if we don't |
| 735 | * have a native font hinter. |
| 736 | * |
| 737 | * - Otherwise, auto-hint for LIGHT hinting mode or if there isn't |
| 738 | * any hinting bytecode in the TrueType/OpenType font. |
| 739 | * |
| 740 | * - Exception: The font is `tricky' and requires the native hinter to |
| 741 | * load properly. |
| 742 | */ |
| 743 | |
| 744 | if ( hinter && |
| 745 | !( load_flags & FT_LOAD_NO_HINTING( 1L << 1 ) ) && |
| 746 | !( load_flags & FT_LOAD_NO_AUTOHINT( 1L << 15 ) ) && |
| 747 | FT_DRIVER_IS_SCALABLE( driver )( ( (FT_Module)(driver) )->clazz->module_flags & 0x100 ) && |
| 748 | FT_DRIVER_USES_OUTLINES( driver )!( ( (FT_Module)(driver) )->clazz->module_flags & 0x200 ) && |
| 749 | !FT_IS_TRICKY( face )( (face)->face_flags & ( 1L << 13 ) ) && |
| 750 | ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM( 1L << 11 ) ) || |
| 751 | ( face->internal->transform_matrix.yx == 0 && |
| 752 | face->internal->transform_matrix.xx != 0 ) || |
| 753 | ( face->internal->transform_matrix.xx == 0 && |
| 754 | face->internal->transform_matrix.yx != 0 ) ) ) |
| 755 | { |
| 756 | if ( ( load_flags & FT_LOAD_FORCE_AUTOHINT( 1L << 5 ) ) || |
| 757 | !FT_DRIVER_HAS_HINTER( driver )( ( (FT_Module)(driver) )->clazz->module_flags & 0x400 ) ) |
| 758 | autohint = TRUE1; |
| 759 | else |
| 760 | { |
| 761 | FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags )( (FT_Render_Mode)( ( (load_flags) >> 16 ) & 15 ) ); |
| 762 | FT_Bool is_light_type1; |
| 763 | |
| 764 | |
| 765 | /* only the new Adobe engine (for both CFF and Type 1) is `light'; */ |
| 766 | /* we use `strstr' to catch both `Type 1' and `CID Type 1' */ |
| 767 | is_light_type1 = |
| 768 | ft_strstrstrstr( FT_Get_Font_Format( face ), "Type 1" ) != NULL((void*)0) && |
| 769 | ((PS_Driver)driver)->hinting_engine == FT_HINTING_ADOBE1; |
| 770 | |
| 771 | /* the check for `num_locations' assures that we actually */ |
| 772 | /* test for instructions in a TTF and not in a CFF-based OTF */ |
| 773 | /* */ |
| 774 | /* since `maxSizeOfInstructions' might be unreliable, we */ |
| 775 | /* check the size of the `fpgm' and `prep' tables, too -- */ |
| 776 | /* the assumption is that there don't exist real TTFs where */ |
| 777 | /* both `fpgm' and `prep' tables are missing */ |
| 778 | if ( ( mode == FT_RENDER_MODE_LIGHT && |
| 779 | ( !FT_DRIVER_HINTS_LIGHTLY( driver )( ( (FT_Module)(driver) )->clazz->module_flags & 0x800 ) && |
| 780 | !is_light_type1 ) ) || |
| 781 | ( FT_IS_SFNT( face )( (face)->face_flags & ( 1L << 3 ) ) && |
| 782 | ttface->num_locations && |
| 783 | ttface->max_profile.maxSizeOfInstructions == 0 && |
| 784 | ttface->font_program_size == 0 && |
| 785 | ttface->cvt_program_size == 0 ) ) |
| 786 | autohint = TRUE1; |
| 787 | } |
| 788 | } |
| 789 | |
| 790 | if ( autohint ) |
| 791 | { |
| 792 | FT_AutoHinter_Interface hinting; |
| 793 | |
| 794 | |
| 795 | /* try to load embedded bitmaps first if available */ |
| 796 | /* */ |
| 797 | /* XXX: This is really a temporary hack that should disappear */ |
| 798 | /* promptly with FreeType 2.1! */ |
| 799 | /* */ |
| 800 | if ( FT_HAS_FIXED_SIZES( face )( (face)->face_flags & ( 1L << 1 ) ) && |
| 801 | ( load_flags & FT_LOAD_NO_BITMAP( 1L << 3 ) ) == 0 ) |
| 802 | { |
| 803 | error = driver->clazz->load_glyph( slot, face->size, |
| 804 | glyph_index, |
| 805 | load_flags | FT_LOAD_SBITS_ONLY( 1L << 14 ) ); |
| 806 | |
| 807 | if ( !error && slot->format == FT_GLYPH_FORMAT_BITMAP ) |
| 808 | goto Load_Ok; |
| 809 | } |
| 810 | |
| 811 | { |
| 812 | FT_Face_Internal internal = face->internal; |
| 813 | FT_Int transform_flags = internal->transform_flags; |
| 814 | |
| 815 | |
| 816 | /* since the auto-hinter calls FT_Load_Glyph by itself, */ |
| 817 | /* make sure that glyphs aren't transformed */ |
| 818 | internal->transform_flags = 0; |
| 819 | |
| 820 | /* load auto-hinted outline */ |
| 821 | hinting = (FT_AutoHinter_Interface)hinter->clazz->module_interface; |
| 822 | |
| 823 | error = hinting->load_glyph( (FT_AutoHinter)hinter, |
| 824 | slot, face->size, |
| 825 | glyph_index, load_flags ); |
| 826 | |
| 827 | internal->transform_flags = transform_flags; |
| 828 | } |
| 829 | } |
| 830 | else |
| 831 | { |
| 832 | error = driver->clazz->load_glyph( slot, |
| 833 | face->size, |
| 834 | glyph_index, |
| 835 | load_flags ); |
| 836 | if ( error ) |
| 837 | goto Exit; |
| 838 | |
| 839 | if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) |
| 840 | { |
| 841 | /* check that the loaded outline is correct */ |
| 842 | error = FT_Outline_Check( &slot->outline ); |
| 843 | if ( error ) |
| 844 | goto Exit; |
| 845 | |
| 846 | #ifdef GRID_FIT_METRICS |
| 847 | if ( !( load_flags & FT_LOAD_NO_HINTING( 1L << 1 ) ) ) |
| 848 | ft_glyphslot_grid_fit_metrics( slot, |
| 849 | FT_BOOL( load_flags & FT_LOAD_VERTICAL_LAYOUT )( (FT_Bool)( load_flags & ( 1L << 4 ) ) ) ); |
| 850 | #endif |
| 851 | } |
| 852 | } |
| 853 | |
| 854 | Load_Ok: |
| 855 | /* compute the advance */ |
| 856 | if ( load_flags & FT_LOAD_VERTICAL_LAYOUT( 1L << 4 ) ) |
| 857 | { |
| 858 | slot->advance.x = 0; |
| 859 | slot->advance.y = slot->metrics.vertAdvance; |
| 860 | } |
| 861 | else |
| 862 | { |
| 863 | slot->advance.x = slot->metrics.horiAdvance; |
| 864 | slot->advance.y = 0; |
| 865 | } |
| 866 | |
| 867 | /* compute the linear advance in 16.16 pixels */ |
| 868 | if ( ( load_flags & FT_LOAD_LINEAR_DESIGN( 1L << 13 ) ) == 0 && |
| 869 | FT_IS_SCALABLE( face )( (face)->face_flags & ( 1L << 0 ) ) ) |
| 870 | { |
| 871 | FT_Size_Metrics* metrics = &face->size->metrics; |
| 872 | |
| 873 | |
| 874 | /* it's tricky! */ |
| 875 | slot->linearHoriAdvance = FT_MulDiv( slot->linearHoriAdvance, |
| 876 | metrics->x_scale, 64 ); |
| 877 | |
| 878 | slot->linearVertAdvance = FT_MulDiv( slot->linearVertAdvance, |
| 879 | metrics->y_scale, 64 ); |
| 880 | } |
| 881 | |
| 882 | if ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM( 1L << 11 ) ) == 0 ) |
| 883 | { |
| 884 | FT_Face_Internal internal = face->internal; |
| 885 | |
| 886 | |
| 887 | /* now, transform the glyph image if needed */ |
| 888 | if ( internal->transform_flags ) |
| 889 | { |
| 890 | /* get renderer */ |
| 891 | FT_Renderer renderer = ft_lookup_glyph_renderer( slot ); |
| 892 | |
| 893 | |
| 894 | if ( renderer ) |
| 895 | error = renderer->clazz->transform_glyph( |
| 896 | renderer, slot, |
| 897 | &internal->transform_matrix, |
| 898 | &internal->transform_delta ); |
| 899 | else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) |
| 900 | { |
| 901 | /* apply `standard' transformation if no renderer is available */ |
| 902 | if ( internal->transform_flags & 1 ) |
| 903 | FT_Outline_Transform( &slot->outline, |
| 904 | &internal->transform_matrix ); |
| 905 | |
| 906 | if ( internal->transform_flags & 2 ) |
| 907 | FT_Outline_Translate( &slot->outline, |
| 908 | internal->transform_delta.x, |
| 909 | internal->transform_delta.y ); |
| 910 | } |
| 911 | |
| 912 | /* transform advance */ |
| 913 | FT_Vector_Transform( &slot->advance, &internal->transform_matrix ); |
| 914 | } |
| 915 | } |
| 916 | |
| 917 | /* do we need to render the image or preset the bitmap now? */ |
| 918 | if ( !error && |
| 919 | ( load_flags & FT_LOAD_NO_SCALE( 1L << 0 ) ) == 0 && |
| 920 | slot->format != FT_GLYPH_FORMAT_BITMAP && |
| 921 | slot->format != FT_GLYPH_FORMAT_COMPOSITE ) |
| 922 | { |
| 923 | FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags )( (FT_Render_Mode)( ( (load_flags) >> 16 ) & 15 ) ); |
| 924 | |
| 925 | |
| 926 | if ( mode == FT_RENDER_MODE_NORMAL && |
| 927 | load_flags & FT_LOAD_MONOCHROME( 1L << 12 ) ) |
| 928 | mode = FT_RENDER_MODE_MONO; |
| 929 | |
| 930 | if ( load_flags & FT_LOAD_RENDER( 1L << 2 ) ) |
| 931 | error = FT_Render_Glyph( slot, mode ); |
| 932 | else |
| 933 | ft_glyphslot_preset_bitmap( slot, mode, NULL((void*)0) ); |
| 934 | } |
| 935 | |
| 936 | FT_TRACE5(( "FT_Load_Glyph: index %d, flags %x\n",do { } while ( 0 ) |
| 937 | glyph_index, load_flags ))do { } while ( 0 ); |
| 938 | FT_TRACE5(( " x advance: %f\n", slot->advance.x / 64.0 ))do { } while ( 0 ); |
| 939 | FT_TRACE5(( " y advance: %f\n", slot->advance.y / 64.0 ))do { } while ( 0 ); |
| 940 | FT_TRACE5(( " linear x advance: %f\n",do { } while ( 0 ) |
| 941 | slot->linearHoriAdvance / 65536.0 ))do { } while ( 0 ); |
| 942 | FT_TRACE5(( " linear y advance: %f\n",do { } while ( 0 ) |
| 943 | slot->linearVertAdvance / 65536.0 ))do { } while ( 0 ); |
| 944 | FT_TRACE5(( " bitmap %dx%d, mode %d\n",do { } while ( 0 ) |
| 945 | slot->bitmap.width, slot->bitmap.rows,do { } while ( 0 ) |
| 946 | slot->bitmap.pixel_mode ))do { } while ( 0 ); |
| 947 | |
| 948 | Exit: |
| 949 | return error; |
| 950 | } |
| 951 | |
| 952 | |
| 953 | /* documentation is in freetype.h */ |
| 954 | |
| 955 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 956 | FT_Load_Char( FT_Face face, |
| 957 | FT_ULong char_code, |
| 958 | FT_Int32 load_flags ) |
| 959 | { |
| 960 | FT_UInt glyph_index; |
| 961 | |
| 962 | |
| 963 | if ( !face ) |
| 964 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 965 | |
| 966 | glyph_index = (FT_UInt)char_code; |
| 967 | if ( face->charmap ) |
| 968 | glyph_index = FT_Get_Char_Index( face, char_code ); |
| 969 | |
| 970 | return FT_Load_Glyph( face, glyph_index, load_flags ); |
| 971 | } |
| 972 | |
| 973 | |
| 974 | /* destructor for sizes list */ |
| 975 | static void |
| 976 | destroy_size( FT_Memory memory, |
| 977 | FT_Size size, |
| 978 | FT_Driver driver ) |
| 979 | { |
| 980 | /* finalize client-specific data */ |
| 981 | if ( size->generic.finalizer ) |
| 982 | size->generic.finalizer( size ); |
| 983 | |
| 984 | /* finalize format-specific stuff */ |
| 985 | if ( driver->clazz->done_size ) |
| 986 | driver->clazz->done_size( size ); |
| 987 | |
| 988 | FT_FREE( size->internal )do { ft_mem_free( memory, (size->internal) ); (size->internal ) = ((void*)0); } while ( 0 ); |
| 989 | FT_FREE( size )do { ft_mem_free( memory, (size) ); (size) = ((void*)0); } while ( 0 ); |
| 990 | } |
| 991 | |
| 992 | |
| 993 | static void |
| 994 | ft_cmap_done_internal( FT_CMap cmap ); |
| 995 | |
| 996 | |
| 997 | static void |
| 998 | destroy_charmaps( FT_Face face, |
| 999 | FT_Memory memory ) |
| 1000 | { |
| 1001 | FT_Int n; |
| 1002 | |
| 1003 | |
| 1004 | if ( !face ) |
| 1005 | return; |
| 1006 | |
| 1007 | for ( n = 0; n < face->num_charmaps; n++ ) |
| 1008 | { |
| 1009 | FT_CMap cmap = FT_CMAP( face->charmaps[n] )( (FT_CMap)( face->charmaps[n] ) ); |
| 1010 | |
| 1011 | |
| 1012 | ft_cmap_done_internal( cmap ); |
| 1013 | |
| 1014 | face->charmaps[n] = NULL((void*)0); |
| 1015 | } |
| 1016 | |
| 1017 | FT_FREE( face->charmaps )do { ft_mem_free( memory, (face->charmaps) ); (face->charmaps ) = ((void*)0); } while ( 0 ); |
| 1018 | face->num_charmaps = 0; |
| 1019 | } |
| 1020 | |
| 1021 | |
| 1022 | /* destructor for faces list */ |
| 1023 | static void |
| 1024 | destroy_face( FT_Memory memory, |
| 1025 | FT_Face face, |
| 1026 | FT_Driver driver ) |
| 1027 | { |
| 1028 | FT_Driver_Class clazz = driver->clazz; |
| 1029 | |
| 1030 | |
| 1031 | /* discard auto-hinting data */ |
| 1032 | if ( face->autohint.finalizer ) |
| 1033 | face->autohint.finalizer( face->autohint.data ); |
| 1034 | |
| 1035 | /* Discard glyph slots for this face. */ |
| 1036 | /* Beware! FT_Done_GlyphSlot() changes the field `face->glyph' */ |
| 1037 | while ( face->glyph ) |
| 1038 | FT_Done_GlyphSlot( face->glyph ); |
| 1039 | |
| 1040 | /* discard all sizes for this face */ |
| 1041 | FT_List_Finalize( &face->sizes_list, |
| 1042 | (FT_List_Destructor)destroy_size, |
| 1043 | memory, |
| 1044 | driver ); |
| 1045 | face->size = NULL((void*)0); |
| 1046 | |
| 1047 | /* now discard client data */ |
| 1048 | if ( face->generic.finalizer ) |
| 1049 | face->generic.finalizer( face ); |
| 1050 | |
| 1051 | /* discard charmaps */ |
| 1052 | destroy_charmaps( face, memory ); |
| 1053 | |
| 1054 | /* finalize format-specific stuff */ |
| 1055 | if ( clazz->done_face ) |
| 1056 | clazz->done_face( face ); |
| 1057 | |
| 1058 | /* close the stream for this face if needed */ |
| 1059 | FT_Stream_Free( |
| 1060 | face->stream, |
| 1061 | ( face->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM( 1L << 10 ) ) != 0 ); |
| 1062 | |
| 1063 | face->stream = NULL((void*)0); |
| 1064 | |
| 1065 | /* get rid of it */ |
| 1066 | if ( face->internal ) |
| 1067 | { |
| 1068 | FT_FREE( face->internal )do { ft_mem_free( memory, (face->internal) ); (face->internal ) = ((void*)0); } while ( 0 ); |
| 1069 | } |
| 1070 | FT_FREE( face )do { ft_mem_free( memory, (face) ); (face) = ((void*)0); } while ( 0 ); |
| 1071 | } |
| 1072 | |
| 1073 | |
| 1074 | static void |
| 1075 | Destroy_Driver( FT_Driver driver ) |
| 1076 | { |
| 1077 | FT_List_Finalize( &driver->faces_list, |
| 1078 | (FT_List_Destructor)destroy_face, |
| 1079 | driver->root.memory, |
| 1080 | driver ); |
| 1081 | } |
| 1082 | |
| 1083 | |
| 1084 | /*************************************************************************/ |
| 1085 | /* */ |
| 1086 | /* <Function> */ |
| 1087 | /* find_unicode_charmap */ |
| 1088 | /* */ |
| 1089 | /* <Description> */ |
| 1090 | /* This function finds a Unicode charmap, if there is one. */ |
| 1091 | /* And if there is more than one, it tries to favour the more */ |
| 1092 | /* extensive one, i.e., one that supports UCS-4 against those which */ |
| 1093 | /* are limited to the BMP (said UCS-2 encoding.) */ |
| 1094 | /* */ |
| 1095 | /* This function is called from open_face() (just below), and also */ |
| 1096 | /* from FT_Select_Charmap( ..., FT_ENCODING_UNICODE ). */ |
| 1097 | /* */ |
| 1098 | static FT_Error |
| 1099 | find_unicode_charmap( FT_Face face ) |
| 1100 | { |
| 1101 | FT_CharMap* first; |
| 1102 | FT_CharMap* cur; |
| 1103 | |
| 1104 | |
| 1105 | /* caller should have already checked that `face' is valid */ |
| 1106 | FT_ASSERT( face )do { } while ( 0 ); |
| 1107 | |
| 1108 | first = face->charmaps; |
| 1109 | |
| 1110 | if ( !first ) |
| 1111 | return FT_THROW( Invalid_CharMap_Handle )FT_Err_Invalid_CharMap_Handle; |
| 1112 | |
| 1113 | /* |
| 1114 | * The original TrueType specification(s) only specified charmap |
| 1115 | * formats that are capable of mapping 8 or 16 bit character codes to |
| 1116 | * glyph indices. |
| 1117 | * |
| 1118 | * However, recent updates to the Apple and OpenType specifications |
| 1119 | * introduced new formats that are capable of mapping 32-bit character |
| 1120 | * codes as well. And these are already used on some fonts, mainly to |
| 1121 | * map non-BMP Asian ideographs as defined in Unicode. |
| 1122 | * |
| 1123 | * For compatibility purposes, these fonts generally come with |
| 1124 | * *several* Unicode charmaps: |
| 1125 | * |
| 1126 | * - One of them in the "old" 16-bit format, that cannot access |
| 1127 | * all glyphs in the font. |
| 1128 | * |
| 1129 | * - Another one in the "new" 32-bit format, that can access all |
| 1130 | * the glyphs. |
| 1131 | * |
| 1132 | * This function has been written to always favor a 32-bit charmap |
| 1133 | * when found. Otherwise, a 16-bit one is returned when found. |
| 1134 | */ |
| 1135 | |
| 1136 | /* Since the `interesting' table, with IDs (3,10), is normally the */ |
| 1137 | /* last one, we loop backwards. This loses with type1 fonts with */ |
| 1138 | /* non-BMP characters (<.0001%), this wins with .ttf with non-BMP */ |
| 1139 | /* chars (.01% ?), and this is the same about 99.99% of the time! */ |
| 1140 | |
| 1141 | cur = first + face->num_charmaps; /* points after the last one */ |
| 1142 | |
| 1143 | for ( ; --cur >= first; ) |
| 1144 | { |
| 1145 | if ( cur[0]->encoding == FT_ENCODING_UNICODE ) |
| 1146 | { |
| 1147 | /* XXX If some new encodings to represent UCS-4 are added, */ |
| 1148 | /* they should be added here. */ |
| 1149 | if ( ( cur[0]->platform_id == TT_PLATFORM_MICROSOFT3 && |
| 1150 | cur[0]->encoding_id == TT_MS_ID_UCS_410 ) || |
| 1151 | ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE0 && |
| 1152 | cur[0]->encoding_id == TT_APPLE_ID_UNICODE_324 ) ) |
| 1153 | { |
| 1154 | face->charmap = cur[0]; |
| 1155 | return FT_Err_Ok; |
| 1156 | } |
| 1157 | } |
| 1158 | } |
| 1159 | |
| 1160 | /* We do not have any UCS-4 charmap. */ |
| 1161 | /* Do the loop again and search for UCS-2 charmaps. */ |
| 1162 | cur = first + face->num_charmaps; |
| 1163 | |
| 1164 | for ( ; --cur >= first; ) |
| 1165 | { |
| 1166 | if ( cur[0]->encoding == FT_ENCODING_UNICODE ) |
| 1167 | { |
| 1168 | face->charmap = cur[0]; |
| 1169 | return FT_Err_Ok; |
| 1170 | } |
| 1171 | } |
| 1172 | |
| 1173 | return FT_THROW( Invalid_CharMap_Handle )FT_Err_Invalid_CharMap_Handle; |
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | /*************************************************************************/ |
| 1178 | /* */ |
| 1179 | /* <Function> */ |
| 1180 | /* open_face */ |
| 1181 | /* */ |
| 1182 | /* <Description> */ |
| 1183 | /* This function does some work for FT_Open_Face(). */ |
| 1184 | /* */ |
| 1185 | static FT_Error |
| 1186 | open_face( FT_Driver driver, |
| 1187 | FT_Stream *astream, |
| 1188 | FT_Bool external_stream, |
| 1189 | FT_Long face_index, |
| 1190 | FT_Int num_params, |
| 1191 | FT_Parameter* params, |
| 1192 | FT_Face *aface ) |
| 1193 | { |
| 1194 | FT_Memory memory; |
| 1195 | FT_Driver_Class clazz; |
| 1196 | FT_Face face = NULL((void*)0); |
| 1197 | FT_Face_Internal internal = NULL((void*)0); |
| 1198 | |
| 1199 | FT_Error error, error2; |
| 1200 | |
| 1201 | |
| 1202 | clazz = driver->clazz; |
| 1203 | memory = driver->root.memory; |
| 1204 | |
| 1205 | /* allocate the face object and perform basic initialization */ |
| 1206 | if ( FT_ALLOC( face, clazz->face_object_size )( ((face) = (ft_mem_alloc( memory, (FT_Long)(clazz->face_object_size ), &error ))), error != 0 ) ) |
| 1207 | goto Fail; |
| 1208 | |
| 1209 | face->driver = driver; |
| 1210 | face->memory = memory; |
| 1211 | face->stream = *astream; |
| 1212 | |
| 1213 | /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */ |
| 1214 | if ( external_stream ) |
| 1215 | face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM( 1L << 10 ); |
| 1216 | |
| 1217 | if ( FT_NEW( internal )( ((internal) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(internal ) )), &error ))), error != 0 ) ) |
| 1218 | goto Fail; |
| 1219 | |
| 1220 | face->internal = internal; |
| 1221 | |
| 1222 | face->internal->random_seed = -1; |
| 1223 | |
| 1224 | if ( clazz->init_face ) |
| 1225 | error = clazz->init_face( *astream, |
| 1226 | face, |
| 1227 | (FT_Int)face_index, |
| 1228 | num_params, |
| 1229 | params ); |
| 1230 | *astream = face->stream; /* Stream may have been changed. */ |
| 1231 | if ( error ) |
| 1232 | goto Fail; |
| 1233 | |
| 1234 | /* select Unicode charmap by default */ |
| 1235 | error2 = find_unicode_charmap( face ); |
| 1236 | |
| 1237 | /* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle */ |
| 1238 | /* is returned. */ |
| 1239 | |
| 1240 | /* no error should happen, but we want to play safe */ |
| 1241 | if ( error2 && FT_ERR_NEQ( error2, Invalid_CharMap_Handle )( ( (error2) & 0xFF ) != ( (FT_Err_Invalid_CharMap_Handle ) & 0xFF ) ) ) |
| 1242 | { |
| 1243 | error = error2; |
| 1244 | goto Fail; |
| 1245 | } |
| 1246 | |
| 1247 | *aface = face; |
| 1248 | |
| 1249 | Fail: |
| 1250 | if ( error ) |
| 1251 | { |
| 1252 | destroy_charmaps( face, memory ); |
| 1253 | if ( clazz->done_face ) |
| 1254 | clazz->done_face( face ); |
| 1255 | FT_FREE( internal )do { ft_mem_free( memory, (internal) ); (internal) = ((void*) 0); } while ( 0 ); |
| 1256 | FT_FREE( face )do { ft_mem_free( memory, (face) ); (face) = ((void*)0); } while ( 0 ); |
| 1257 | *aface = NULL((void*)0); |
| 1258 | } |
| 1259 | |
| 1260 | return error; |
| 1261 | } |
| 1262 | |
| 1263 | |
| 1264 | #ifdef FT_MACINTOSH |
| 1265 | |
| 1266 | /* The behavior here is very similar to that in base/ftmac.c, but it */ |
| 1267 | /* is designed to work on non-mac systems, so no mac specific calls. */ |
| 1268 | /* */ |
| 1269 | /* We look at the file and determine if it is a mac dfont file or a mac */ |
| 1270 | /* resource file, or a macbinary file containing a mac resource file. */ |
| 1271 | /* */ |
| 1272 | /* Unlike ftmac I'm not going to look at a `FOND'. I don't really see */ |
| 1273 | /* the point, especially since there may be multiple `FOND' resources. */ |
| 1274 | /* Instead I'll just look for `sfnt' and `POST' resources, ordered as */ |
| 1275 | /* they occur in the file. */ |
| 1276 | /* */ |
| 1277 | /* Note that multiple `POST' resources do not mean multiple postscript */ |
| 1278 | /* fonts; they all get jammed together to make what is essentially a */ |
| 1279 | /* pfb file. */ |
| 1280 | /* */ |
| 1281 | /* We aren't interested in `NFNT' or `FONT' bitmap resources. */ |
| 1282 | /* */ |
| 1283 | /* As soon as we get an `sfnt' load it into memory and pass it off to */ |
| 1284 | /* FT_Open_Face. */ |
| 1285 | /* */ |
| 1286 | /* If we have a (set of) `POST' resources, massage them into a (memory) */ |
| 1287 | /* pfb file and pass that to FT_Open_Face. (As with ftmac.c I'm not */ |
| 1288 | /* going to try to save the kerning info. After all that lives in the */ |
| 1289 | /* `FOND' which isn't in the file containing the `POST' resources so */ |
| 1290 | /* we don't really have access to it. */ |
| 1291 | |
| 1292 | |
| 1293 | /* Finalizer for a memory stream; gets called by FT_Done_Face(). */ |
| 1294 | /* It frees the memory it uses. */ |
| 1295 | /* From `ftmac.c'. */ |
| 1296 | static void |
| 1297 | memory_stream_close( FT_Stream stream ) |
| 1298 | { |
| 1299 | FT_Memory memory = stream->memory; |
| 1300 | |
| 1301 | |
| 1302 | FT_FREE( stream->base )do { ft_mem_free( memory, (stream->base) ); (stream->base ) = ((void*)0); } while ( 0 ); |
| 1303 | |
| 1304 | stream->size = 0; |
| 1305 | stream->base = NULL((void*)0); |
| 1306 | stream->close = NULL((void*)0); |
| 1307 | } |
| 1308 | |
| 1309 | |
| 1310 | /* Create a new memory stream from a buffer and a size. */ |
| 1311 | /* From `ftmac.c'. */ |
| 1312 | static FT_Error |
| 1313 | new_memory_stream( FT_Library library, |
| 1314 | FT_Byte* base, |
| 1315 | FT_ULong size, |
| 1316 | FT_Stream_CloseFunc close, |
| 1317 | FT_Stream *astream ) |
| 1318 | { |
| 1319 | FT_Error error; |
| 1320 | FT_Memory memory; |
| 1321 | FT_Stream stream = NULL((void*)0); |
| 1322 | |
| 1323 | |
| 1324 | if ( !library ) |
| 1325 | return FT_THROW( Invalid_Library_Handle )FT_Err_Invalid_Library_Handle; |
| 1326 | |
| 1327 | if ( !base ) |
| 1328 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 1329 | |
| 1330 | *astream = NULL((void*)0); |
| 1331 | memory = library->memory; |
| 1332 | if ( FT_NEW( stream )( ((stream) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(stream ) )), &error ))), error != 0 ) ) |
| 1333 | goto Exit; |
| 1334 | |
| 1335 | FT_Stream_OpenMemory( stream, base, size ); |
| 1336 | |
| 1337 | stream->close = close; |
| 1338 | |
| 1339 | *astream = stream; |
| 1340 | |
| 1341 | Exit: |
| 1342 | return error; |
| 1343 | } |
| 1344 | |
| 1345 | |
| 1346 | /* Create a new FT_Face given a buffer and a driver name. */ |
| 1347 | /* From `ftmac.c'. */ |
| 1348 | FT_LOCAL_DEF( FT_Error )static FT_Error |
| 1349 | open_face_from_buffer( FT_Library library, |
| 1350 | FT_Byte* base, |
| 1351 | FT_ULong size, |
| 1352 | FT_Long face_index, |
| 1353 | const char* driver_name, |
| 1354 | FT_Face *aface ) |
| 1355 | { |
| 1356 | FT_Open_Args args; |
| 1357 | FT_Error error; |
| 1358 | FT_Stream stream = NULL((void*)0); |
| 1359 | FT_Memory memory = library->memory; |
| 1360 | |
| 1361 | |
| 1362 | error = new_memory_stream( library, |
| 1363 | base, |
| 1364 | size, |
| 1365 | memory_stream_close, |
| 1366 | &stream ); |
| 1367 | if ( error ) |
| 1368 | { |
| 1369 | FT_FREE( base )do { ft_mem_free( memory, (base) ); (base) = ((void*)0); } while ( 0 ); |
| 1370 | return error; |
| 1371 | } |
| 1372 | |
| 1373 | args.flags = FT_OPEN_STREAM0x2; |
| 1374 | args.stream = stream; |
| 1375 | if ( driver_name ) |
| 1376 | { |
| 1377 | args.flags = args.flags | FT_OPEN_DRIVER0x8; |
| 1378 | args.driver = FT_Get_Module( library, driver_name ); |
| 1379 | } |
| 1380 | |
| 1381 | /* At this point, the face index has served its purpose; */ |
| 1382 | /* whoever calls this function has already used it to */ |
| 1383 | /* locate the correct font data. We should not propagate */ |
| 1384 | /* this index to FT_Open_Face() (unless it is negative). */ |
| 1385 | |
| 1386 | if ( face_index > 0 ) |
| 1387 | face_index &= 0x7FFF0000L; /* retain GX data */ |
| 1388 | |
| 1389 | error = ft_open_face_internal( library, &args, face_index, aface, 0 ); |
| 1390 | |
| 1391 | if ( !error ) |
| 1392 | (*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM( 1L << 10 ); |
| 1393 | else |
| 1394 | FT_Stream_Free( stream, 0 ); |
| 1395 | |
| 1396 | return error; |
| 1397 | } |
| 1398 | |
| 1399 | |
| 1400 | /* Look up `TYP1' or `CID ' table from sfnt table directory. */ |
| 1401 | /* `offset' and `length' must exclude the binary header in tables. */ |
| 1402 | |
| 1403 | /* Type 1 and CID-keyed font drivers should recognize sfnt-wrapped */ |
| 1404 | /* format too. Here, since we can't expect that the TrueType font */ |
| 1405 | /* driver is loaded unconditionally, we must parse the font by */ |
| 1406 | /* ourselves. We are only interested in the name of the table and */ |
| 1407 | /* the offset. */ |
| 1408 | |
| 1409 | static FT_Error |
| 1410 | ft_lookup_PS_in_sfnt_stream( FT_Stream stream, |
| 1411 | FT_Long face_index, |
| 1412 | FT_ULong* offset, |
| 1413 | FT_ULong* length, |
| 1414 | FT_Bool* is_sfnt_cid ) |
| 1415 | { |
| 1416 | FT_Error error; |
| 1417 | FT_UShort numTables; |
| 1418 | FT_Long pstable_index; |
| 1419 | FT_ULong tag; |
| 1420 | int i; |
| 1421 | |
| 1422 | |
| 1423 | *offset = 0; |
| 1424 | *length = 0; |
| 1425 | *is_sfnt_cid = FALSE0; |
| 1426 | |
| 1427 | /* TODO: support for sfnt-wrapped PS/CID in TTC format */ |
| 1428 | |
| 1429 | /* version check for 'typ1' (should be ignored?) */ |
| 1430 | if ( FT_READ_ULONG( tag )( tag = (FT_ULong)FT_Stream_ReadULong( stream, &error ), error != FT_Err_Ok ) ) |
| 1431 | return error; |
| 1432 | if ( tag != TTAG_typ1(FT_Tag) ( ( (FT_ULong)'t' << 24 ) | ( (FT_ULong)'y' << 16 ) | ( (FT_ULong)'p' << 8 ) | (FT_ULong)'1' ) ) |
| 1433 | return FT_THROW( Unknown_File_Format )FT_Err_Unknown_File_Format; |
| 1434 | |
| 1435 | if ( FT_READ_USHORT( numTables )( numTables = (FT_UShort)FT_Stream_ReadUShort( stream, &error ), error != FT_Err_Ok ) ) |
| 1436 | return error; |
| 1437 | if ( FT_STREAM_SKIP( 2 * 3 )( ( error = (FT_Stream_Skip( stream, (FT_Long)(2 * 3) )) ) != 0 ) ) /* skip binary search header */ |
| 1438 | return error; |
| 1439 | |
| 1440 | pstable_index = -1; |
| 1441 | *is_sfnt_cid = FALSE0; |
| 1442 | |
| 1443 | for ( i = 0; i < numTables; i++ ) |
| 1444 | { |
| 1445 | if ( FT_READ_ULONG( tag )( tag = (FT_ULong)FT_Stream_ReadULong( stream, &error ), error != FT_Err_Ok ) || FT_STREAM_SKIP( 4 )( ( error = (FT_Stream_Skip( stream, (FT_Long)(4) )) ) != 0 ) || |
| 1446 | FT_READ_ULONG( *offset )( *offset = (FT_ULong)FT_Stream_ReadULong( stream, &error ), error != FT_Err_Ok ) || FT_READ_ULONG( *length )( *length = (FT_ULong)FT_Stream_ReadULong( stream, &error ), error != FT_Err_Ok ) ) |
| 1447 | return error; |
| 1448 | |
| 1449 | if ( tag == TTAG_CID(FT_Tag) ( ( (FT_ULong)'C' << 24 ) | ( (FT_ULong)'I' << 16 ) | ( (FT_ULong)'D' << 8 ) | (FT_ULong)' ' ) ) |
| 1450 | { |
| 1451 | pstable_index++; |
| 1452 | *offset += 22; |
| 1453 | *length -= 22; |
| 1454 | *is_sfnt_cid = TRUE1; |
| 1455 | if ( face_index < 0 ) |
| 1456 | return FT_Err_Ok; |
| 1457 | } |
| 1458 | else if ( tag == TTAG_TYP1(FT_Tag) ( ( (FT_ULong)'T' << 24 ) | ( (FT_ULong)'Y' << 16 ) | ( (FT_ULong)'P' << 8 ) | (FT_ULong)'1' ) ) |
| 1459 | { |
| 1460 | pstable_index++; |
| 1461 | *offset += 24; |
| 1462 | *length -= 24; |
| 1463 | *is_sfnt_cid = FALSE0; |
| 1464 | if ( face_index < 0 ) |
| 1465 | return FT_Err_Ok; |
| 1466 | } |
| 1467 | if ( face_index >= 0 && pstable_index == face_index ) |
| 1468 | return FT_Err_Ok; |
| 1469 | } |
| 1470 | |
| 1471 | return FT_THROW( Table_Missing )FT_Err_Table_Missing; |
| 1472 | } |
| 1473 | |
| 1474 | |
| 1475 | FT_LOCAL_DEF( FT_Error )static FT_Error |
| 1476 | open_face_PS_from_sfnt_stream( FT_Library library, |
| 1477 | FT_Stream stream, |
| 1478 | FT_Long face_index, |
| 1479 | FT_Int num_params, |
| 1480 | FT_Parameter *params, |
| 1481 | FT_Face *aface ) |
| 1482 | { |
| 1483 | FT_Error error; |
| 1484 | FT_Memory memory = library->memory; |
| 1485 | FT_ULong offset, length; |
| 1486 | FT_ULong pos; |
| 1487 | FT_Bool is_sfnt_cid; |
| 1488 | FT_Byte* sfnt_ps = NULL((void*)0); |
| 1489 | |
| 1490 | FT_UNUSED( num_params )( (num_params) = (num_params) ); |
| 1491 | FT_UNUSED( params )( (params) = (params) ); |
| 1492 | |
| 1493 | |
| 1494 | /* ignore GX stuff */ |
| 1495 | if ( face_index > 0 ) |
| 1496 | face_index &= 0xFFFFL; |
| 1497 | |
| 1498 | pos = FT_STREAM_POS()FT_Stream_Pos( stream ); |
| 1499 | |
| 1500 | error = ft_lookup_PS_in_sfnt_stream( stream, |
| 1501 | face_index, |
| 1502 | &offset, |
| 1503 | &length, |
| 1504 | &is_sfnt_cid ); |
| 1505 | if ( error ) |
| 1506 | goto Exit; |
| 1507 | |
| 1508 | if ( offset > stream->size ) |
| 1509 | { |
| 1510 | FT_TRACE2(( "open_face_PS_from_sfnt_stream: invalid table offset\n" ))do { } while ( 0 ); |
| 1511 | error = FT_THROW( Invalid_Table )FT_Err_Invalid_Table; |
| 1512 | goto Exit; |
| 1513 | } |
| 1514 | else if ( length > stream->size - offset ) |
| 1515 | { |
| 1516 | FT_TRACE2(( "open_face_PS_from_sfnt_stream: invalid table length\n" ))do { } while ( 0 ); |
| 1517 | error = FT_THROW( Invalid_Table )FT_Err_Invalid_Table; |
| 1518 | goto Exit; |
| 1519 | } |
| 1520 | |
| 1521 | error = FT_Stream_Seek( stream, pos + offset ); |
| 1522 | if ( error ) |
| 1523 | goto Exit; |
| 1524 | |
| 1525 | if ( FT_ALLOC( sfnt_ps, (FT_Long)length )( ((sfnt_ps) = (ft_mem_alloc( memory, (FT_Long)((FT_Long)length ), &error ))), error != 0 ) ) |
| 1526 | goto Exit; |
| 1527 | |
| 1528 | error = FT_Stream_Read( stream, (FT_Byte *)sfnt_ps, length ); |
| 1529 | if ( error ) |
| 1530 | { |
| 1531 | FT_FREE( sfnt_ps )do { ft_mem_free( memory, (sfnt_ps) ); (sfnt_ps) = ((void*)0) ; } while ( 0 ); |
| 1532 | goto Exit; |
| 1533 | } |
| 1534 | |
| 1535 | error = open_face_from_buffer( library, |
| 1536 | sfnt_ps, |
| 1537 | length, |
| 1538 | FT_MIN( face_index, 0 )( (face_index) < (0) ? (face_index) : (0) ), |
| 1539 | is_sfnt_cid ? "cid" : "type1", |
| 1540 | aface ); |
| 1541 | Exit: |
| 1542 | { |
| 1543 | FT_Error error1; |
| 1544 | |
| 1545 | |
| 1546 | if ( FT_ERR_EQ( error, Unknown_File_Format )( ( (error) & 0xFF ) == ( (FT_Err_Unknown_File_Format) & 0xFF ) ) ) |
| 1547 | { |
| 1548 | error1 = FT_Stream_Seek( stream, pos ); |
| 1549 | if ( error1 ) |
| 1550 | return error1; |
| 1551 | } |
| 1552 | |
| 1553 | return error; |
| 1554 | } |
| 1555 | } |
| 1556 | #endif /* FT_MACINTOSH */ |
| 1557 | |
| 1558 | |
| 1559 | /* documentation is in freetype.h */ |
| 1560 | |
| 1561 | #ifndef FT_MACINTOSH |
| 1562 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 1563 | FT_New_Face( FT_Library library, |
| 1564 | const FT_Open_Args* args, |
| 1565 | FT_Long face_index, |
| 1566 | FT_Face *aface ) |
| 1567 | { |
| 1568 | return FT_Open_Face( library, args, face_index, aface ); |
| 1569 | } |
| 1570 | #endif |
| 1571 | |
| 1572 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 1573 | FT_Open_Face( FT_Library library, |
| 1574 | const FT_Open_Args* args, |
| 1575 | FT_Long face_index, |
| 1576 | FT_Face *aface ) |
| 1577 | { |
| 1578 | return ft_open_face_internal( library, args, face_index, aface, 1 ); |
| 1579 | } |
| 1580 | |
| 1581 | |
| 1582 | static FT_Error |
| 1583 | ft_open_face_internal( FT_Library library, |
| 1584 | const FT_Open_Args* args, |
| 1585 | FT_Long face_index, |
| 1586 | FT_Face *aface, |
| 1587 | FT_Bool test_mac_fonts ) |
| 1588 | { |
| 1589 | FT_Error error; |
| 1590 | FT_Driver driver = NULL((void*)0); |
| 1591 | FT_Memory memory = NULL((void*)0); |
| 1592 | FT_Stream stream = NULL((void*)0); |
| 1593 | FT_Face face = NULL((void*)0); |
| 1594 | FT_ListNode node = NULL((void*)0); |
| 1595 | FT_Bool external_stream; |
| 1596 | FT_Module* cur; |
| 1597 | FT_Module* limit; |
| 1598 | |
| 1599 | FT_UNUSED( test_mac_fonts )( (test_mac_fonts) = (test_mac_fonts) ); |
| 1600 | |
| 1601 | /* test for valid `library' delayed to `FT_Stream_New' */ |
| 1602 | |
| 1603 | if ( ( !aface && face_index >= 0 ) || !args ) |
| 1604 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 1605 | |
| 1606 | external_stream = FT_BOOL( ( args->flags & FT_OPEN_STREAM ) &&( (FT_Bool)( ( args->flags & 0x2 ) && args-> stream ) ) |
| 1607 | args->stream )( (FT_Bool)( ( args->flags & 0x2 ) && args-> stream ) ); |
| 1608 | |
| 1609 | /* create input stream */ |
| 1610 | error = FT_Stream_New( library, args, &stream ); |
| 1611 | if ( error ) |
| 1612 | goto Fail3; |
| 1613 | |
| 1614 | memory = library->memory; |
| 1615 | |
| 1616 | /* If the font driver is specified in the `args' structure, use */ |
| 1617 | /* it. Otherwise, we scan the list of registered drivers. */ |
| 1618 | if ( ( args->flags & FT_OPEN_DRIVER0x8 ) && args->driver ) |
| 1619 | { |
| 1620 | driver = FT_DRIVER( args->driver )( (FT_Driver)(args->driver) ); |
| 1621 | |
| 1622 | /* not all modules are drivers, so check... */ |
| 1623 | if ( FT_MODULE_IS_DRIVER( driver )( ( (FT_Module)(driver) )->clazz->module_flags & 1 ) ) |
| 1624 | { |
| 1625 | FT_Int num_params = 0; |
| 1626 | FT_Parameter* params = NULL((void*)0); |
| 1627 | |
| 1628 | |
| 1629 | if ( args->flags & FT_OPEN_PARAMS0x10 ) |
| 1630 | { |
| 1631 | num_params = args->num_params; |
| 1632 | params = args->params; |
| 1633 | } |
| 1634 | |
| 1635 | error = open_face( driver, &stream, external_stream, face_index, |
| 1636 | num_params, params, &face ); |
| 1637 | if ( !error ) |
| 1638 | goto Success; |
| 1639 | } |
| 1640 | else |
| 1641 | error = FT_THROW( Invalid_Handle )FT_Err_Invalid_Handle; |
| 1642 | |
| 1643 | FT_Stream_Free( stream, external_stream ); |
| 1644 | goto Fail; |
| 1645 | } |
| 1646 | else |
| 1647 | { |
| 1648 | error = FT_ERR( Missing_Module )FT_Err_Missing_Module; |
| 1649 | |
| 1650 | /* check each font driver for an appropriate format */ |
| 1651 | cur = library->modules; |
| 1652 | limit = cur + library->num_modules; |
| 1653 | |
| 1654 | for ( ; cur < limit; cur++ ) |
| 1655 | { |
| 1656 | /* not all modules are font drivers, so check... */ |
| 1657 | if ( FT_MODULE_IS_DRIVER( cur[0] )( ( (FT_Module)(cur[0]) )->clazz->module_flags & 1 ) ) |
| 1658 | { |
| 1659 | FT_Int num_params = 0; |
| 1660 | FT_Parameter* params = NULL((void*)0); |
| 1661 | |
| 1662 | |
| 1663 | driver = FT_DRIVER( cur[0] )( (FT_Driver)(cur[0]) ); |
| 1664 | |
| 1665 | if ( args->flags & FT_OPEN_PARAMS0x10 ) |
| 1666 | { |
| 1667 | num_params = args->num_params; |
| 1668 | params = args->params; |
| 1669 | } |
| 1670 | |
| 1671 | error = open_face( driver, &stream, external_stream, face_index, |
| 1672 | num_params, params, &face ); |
| 1673 | if ( !error ) |
| 1674 | goto Success; |
| 1675 | |
| 1676 | if ( FT_ERR_NEQ( error, Unknown_File_Format )( ( (error) & 0xFF ) != ( (FT_Err_Unknown_File_Format) & 0xFF ) ) ) |
| 1677 | goto Fail3; |
| 1678 | } |
| 1679 | } |
| 1680 | |
| 1681 | Fail3: |
| 1682 | /* If we are on the mac, and we get an */ |
| 1683 | /* FT_Err_Invalid_Stream_Operation it may be because we have an */ |
| 1684 | /* empty data fork, so we need to check the resource fork. */ |
| 1685 | if ( FT_ERR_NEQ( error, Cannot_Open_Stream )( ( (error) & 0xFF ) != ( (FT_Err_Cannot_Open_Stream) & 0xFF ) ) && |
| 1686 | FT_ERR_NEQ( error, Unknown_File_Format )( ( (error) & 0xFF ) != ( (FT_Err_Unknown_File_Format) & 0xFF ) ) && |
| 1687 | FT_ERR_NEQ( error, Invalid_Stream_Operation )( ( (error) & 0xFF ) != ( (FT_Err_Invalid_Stream_Operation ) & 0xFF ) ) ) |
| 1688 | goto Fail2; |
| 1689 | |
| 1690 | /* no driver is able to handle this format */ |
| 1691 | error = FT_THROW( Unknown_File_Format )FT_Err_Unknown_File_Format; |
| 1692 | |
| 1693 | Fail2: |
| 1694 | FT_Stream_Free( stream, external_stream ); |
| 1695 | goto Fail; |
| 1696 | } |
| 1697 | |
| 1698 | Success: |
| 1699 | FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" ))do { } while ( 0 ); |
| 1700 | |
| 1701 | /* add the face object to its driver's list */ |
| 1702 | if ( FT_NEW( node )( ((node) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(node) )), &error ))), error != 0 ) ) |
| 1703 | goto Fail; |
| 1704 | |
| 1705 | node->data = face; |
| 1706 | /* don't assume driver is the same as face->driver, so use */ |
| 1707 | /* face->driver instead. */ |
| 1708 | FT_List_Add( &face->driver->faces_list, node ); |
| 1709 | |
| 1710 | /* now allocate a glyph slot object for the face */ |
| 1711 | FT_TRACE4(( "FT_Open_Face: Creating glyph slot\n" ))do { } while ( 0 ); |
| 1712 | |
| 1713 | if ( face_index >= 0 ) |
| 1714 | { |
| 1715 | error = FT_New_GlyphSlot( face, NULL((void*)0) ); |
| 1716 | if ( error ) |
| 1717 | goto Fail; |
| 1718 | |
| 1719 | /* finally, allocate a size object for the face */ |
| 1720 | { |
| 1721 | FT_Size size; |
| 1722 | |
| 1723 | |
| 1724 | FT_TRACE4(( "FT_Open_Face: Creating size object\n" ))do { } while ( 0 ); |
| 1725 | |
| 1726 | error = FT_New_Size( face, &size ); |
| 1727 | if ( error ) |
| 1728 | goto Fail; |
| 1729 | |
| 1730 | face->size = size; |
| 1731 | } |
| 1732 | } |
| 1733 | |
| 1734 | /* some checks */ |
| 1735 | |
| 1736 | if ( FT_IS_SCALABLE( face )( (face)->face_flags & ( 1L << 0 ) ) ) |
| 1737 | { |
| 1738 | if ( face->height < 0 ) |
| 1739 | face->height = (FT_Short)-face->height; |
| 1740 | |
| 1741 | if ( !FT_HAS_VERTICAL( face )( (face)->face_flags & ( 1L << 5 ) ) ) |
| 1742 | face->max_advance_height = (FT_Short)face->height; |
| 1743 | } |
| 1744 | |
| 1745 | if ( FT_HAS_FIXED_SIZES( face )( (face)->face_flags & ( 1L << 1 ) ) ) |
| 1746 | { |
| 1747 | FT_Int i; |
| 1748 | |
| 1749 | |
| 1750 | for ( i = 0; i < face->num_fixed_sizes; i++ ) |
| 1751 | { |
| 1752 | FT_Bitmap_Size* bsize = face->available_sizes + i; |
| 1753 | |
| 1754 | |
| 1755 | if ( bsize->height < 0 ) |
| 1756 | bsize->height = -bsize->height; |
| 1757 | if ( bsize->x_ppem < 0 ) |
| 1758 | bsize->x_ppem = -bsize->x_ppem; |
| 1759 | if ( bsize->y_ppem < 0 ) |
| 1760 | bsize->y_ppem = -bsize->y_ppem; |
| 1761 | |
| 1762 | /* check whether negation actually has worked */ |
| 1763 | if ( bsize->height < 0 || bsize->x_ppem < 0 || bsize->y_ppem < 0 ) |
| 1764 | { |
| 1765 | FT_TRACE0(( "FT_Open_Face:"do { } while ( 0 ) |
| 1766 | " Invalid bitmap dimensions for strike %d,"do { } while ( 0 ) |
| 1767 | " now disabled\n", i ))do { } while ( 0 ); |
| 1768 | bsize->width = 0; |
| 1769 | bsize->height = 0; |
| 1770 | bsize->size = 0; |
| 1771 | bsize->x_ppem = 0; |
| 1772 | bsize->y_ppem = 0; |
| 1773 | } |
| 1774 | } |
| 1775 | } |
| 1776 | |
| 1777 | /* initialize internal face data */ |
| 1778 | { |
| 1779 | FT_Face_Internal internal = face->internal; |
| 1780 | |
| 1781 | |
| 1782 | internal->transform_matrix.xx = 0x10000L; |
| 1783 | internal->transform_matrix.xy = 0; |
| 1784 | internal->transform_matrix.yx = 0; |
| 1785 | internal->transform_matrix.yy = 0x10000L; |
| 1786 | |
| 1787 | internal->transform_delta.x = 0; |
| 1788 | internal->transform_delta.y = 0; |
| 1789 | |
| 1790 | internal->refcount = 1; |
| 1791 | |
| 1792 | internal->no_stem_darkening = -1; |
| 1793 | } |
| 1794 | |
| 1795 | if ( aface ) |
| 1796 | *aface = face; |
| 1797 | else |
| 1798 | FT_Done_Face( face ); |
| 1799 | |
| 1800 | goto Exit; |
| 1801 | |
| 1802 | Fail: |
| 1803 | if ( node ) |
| 1804 | FT_Done_Face( face ); /* face must be in the driver's list */ |
| 1805 | else if ( face ) |
| 1806 | destroy_face( memory, face, driver ); |
| 1807 | |
| 1808 | Exit: |
| 1809 | #ifdef FT_DEBUG_LEVEL_TRACE |
| 1810 | if ( !error && face_index < 0 ) |
| 1811 | { |
| 1812 | FT_TRACE3(( "FT_Open_Face: The font has %ld face%s\n"do { } while ( 0 ) |
| 1813 | " and %ld named instance%s for face %ld\n",do { } while ( 0 ) |
| 1814 | face->num_faces,do { } while ( 0 ) |
| 1815 | face->num_faces == 1 ? "" : "s",do { } while ( 0 ) |
| 1816 | face->style_flags >> 16,do { } while ( 0 ) |
| 1817 | ( face->style_flags >> 16 ) == 1 ? "" : "s",do { } while ( 0 ) |
| 1818 | -face_index - 1 ))do { } while ( 0 ); |
| 1819 | } |
| 1820 | #endif |
| 1821 | |
| 1822 | FT_TRACE4(( "FT_Open_Face: Return 0x%x\n", error ))do { } while ( 0 ); |
| 1823 | |
| 1824 | return error; |
| 1825 | } |
| 1826 | |
| 1827 | |
| 1828 | /* documentation is in freetype.h */ |
| 1829 | |
| 1830 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 1831 | FT_Done_Face( FT_Face face ) |
| 1832 | { |
| 1833 | FT_Error error; |
| 1834 | FT_Driver driver; |
| 1835 | FT_Memory memory; |
| 1836 | FT_ListNode node; |
| 1837 | |
| 1838 | |
| 1839 | error = FT_ERR( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 1840 | if ( face && face->driver ) |
| 1841 | { |
| 1842 | face->internal->refcount--; |
| 1843 | if ( face->internal->refcount > 0 ) |
| 1844 | error = FT_Err_Ok; |
| 1845 | else |
| 1846 | { |
| 1847 | driver = face->driver; |
| 1848 | memory = driver->root.memory; |
| 1849 | |
| 1850 | /* find face in driver's list */ |
| 1851 | node = FT_List_Find( &driver->faces_list, face ); |
| 1852 | if ( node ) |
| 1853 | { |
| 1854 | /* remove face object from the driver's list */ |
| 1855 | FT_List_Remove( &driver->faces_list, node ); |
| 1856 | FT_FREE( node )do { ft_mem_free( memory, (node) ); (node) = ((void*)0); } while ( 0 ); |
| 1857 | |
| 1858 | /* now destroy the object proper */ |
| 1859 | destroy_face( memory, face, driver ); |
| 1860 | error = FT_Err_Ok; |
| 1861 | } |
| 1862 | } |
| 1863 | } |
| 1864 | |
| 1865 | return error; |
| 1866 | } |
| 1867 | |
| 1868 | |
| 1869 | /* documentation is in ftobjs.h */ |
| 1870 | |
| 1871 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 1872 | FT_New_Size( FT_Face face, |
| 1873 | FT_Size *asize ) |
| 1874 | { |
| 1875 | FT_Error error; |
| 1876 | FT_Memory memory; |
| 1877 | FT_Driver driver; |
| 1878 | FT_Driver_Class clazz; |
| 1879 | |
| 1880 | FT_Size size = NULL((void*)0); |
| 1881 | FT_ListNode node = NULL((void*)0); |
| 1882 | |
| 1883 | FT_Size_Internal internal = NULL((void*)0); |
| 1884 | |
| 1885 | |
| 1886 | if ( !face ) |
| 1887 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 1888 | |
| 1889 | if ( !asize ) |
| 1890 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 1891 | |
| 1892 | if ( !face->driver ) |
| 1893 | return FT_THROW( Invalid_Driver_Handle )FT_Err_Invalid_Driver_Handle; |
| 1894 | |
| 1895 | *asize = NULL((void*)0); |
| 1896 | |
| 1897 | driver = face->driver; |
| 1898 | clazz = driver->clazz; |
| 1899 | memory = face->memory; |
| 1900 | |
| 1901 | /* Allocate new size object and perform basic initialisation */ |
| 1902 | if ( FT_ALLOC( size, clazz->size_object_size )( ((size) = (ft_mem_alloc( memory, (FT_Long)(clazz->size_object_size ), &error ))), error != 0 ) || FT_NEW( node )( ((node) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(node) )), &error ))), error != 0 ) ) |
| 1903 | goto Exit; |
| 1904 | |
| 1905 | size->face = face; |
| 1906 | |
| 1907 | if ( FT_NEW( internal )( ((internal) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(internal ) )), &error ))), error != 0 ) ) |
| 1908 | goto Exit; |
| 1909 | |
| 1910 | size->internal = internal; |
| 1911 | |
| 1912 | if ( clazz->init_size ) |
| 1913 | error = clazz->init_size( size ); |
| 1914 | |
| 1915 | /* in case of success, add to the face's list */ |
| 1916 | if ( !error ) |
| 1917 | { |
| 1918 | *asize = size; |
| 1919 | node->data = size; |
| 1920 | FT_List_Add( &face->sizes_list, node ); |
| 1921 | } |
| 1922 | |
| 1923 | Exit: |
| 1924 | if ( error ) |
| 1925 | { |
| 1926 | FT_FREE( node )do { ft_mem_free( memory, (node) ); (node) = ((void*)0); } while ( 0 ); |
| 1927 | FT_FREE( size )do { ft_mem_free( memory, (size) ); (size) = ((void*)0); } while ( 0 ); |
| 1928 | } |
| 1929 | |
| 1930 | return error; |
| 1931 | } |
| 1932 | |
| 1933 | |
| 1934 | /* documentation is in ftobjs.h */ |
| 1935 | |
| 1936 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 1937 | FT_Done_Size( FT_Size size ) |
| 1938 | { |
| 1939 | FT_Error error; |
| 1940 | FT_Driver driver; |
| 1941 | FT_Memory memory; |
| 1942 | FT_Face face; |
| 1943 | FT_ListNode node; |
| 1944 | |
| 1945 | |
| 1946 | if ( !size ) |
| 1947 | return FT_THROW( Invalid_Size_Handle )FT_Err_Invalid_Size_Handle; |
| 1948 | |
| 1949 | face = size->face; |
| 1950 | if ( !face ) |
| 1951 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 1952 | |
| 1953 | driver = face->driver; |
| 1954 | if ( !driver ) |
| 1955 | return FT_THROW( Invalid_Driver_Handle )FT_Err_Invalid_Driver_Handle; |
| 1956 | |
| 1957 | memory = driver->root.memory; |
| 1958 | |
| 1959 | error = FT_Err_Ok; |
| 1960 | node = FT_List_Find( &face->sizes_list, size ); |
| 1961 | if ( node ) |
| 1962 | { |
| 1963 | FT_List_Remove( &face->sizes_list, node ); |
| 1964 | FT_FREE( node )do { ft_mem_free( memory, (node) ); (node) = ((void*)0); } while ( 0 ); |
| 1965 | |
| 1966 | if ( face->size == size ) |
| 1967 | { |
| 1968 | face->size = NULL((void*)0); |
| 1969 | if ( face->sizes_list.head ) |
| 1970 | face->size = (FT_Size)(face->sizes_list.head->data); |
| 1971 | } |
| 1972 | |
| 1973 | destroy_size( memory, size, driver ); |
| 1974 | } |
| 1975 | else |
| 1976 | error = FT_THROW( Invalid_Size_Handle )FT_Err_Invalid_Size_Handle; |
| 1977 | |
| 1978 | return error; |
| 1979 | } |
| 1980 | |
| 1981 | |
| 1982 | /* documentation is in ftobjs.h */ |
| 1983 | |
| 1984 | FT_BASE_DEF( FT_Error )FT_Error |
| 1985 | FT_Match_Size( FT_Face face, |
| 1986 | FT_Size_Request req, |
| 1987 | FT_Bool ignore_width, |
| 1988 | FT_ULong* size_index ) |
| 1989 | { |
| 1990 | FT_Int i; |
| 1991 | FT_Long w, h; |
| 1992 | |
| 1993 | |
| 1994 | if ( !FT_HAS_FIXED_SIZES( face )( (face)->face_flags & ( 1L << 1 ) ) ) |
| 1995 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 1996 | |
| 1997 | /* FT_Bitmap_Size doesn't provide enough info... */ |
| 1998 | if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL ) |
| 1999 | return FT_THROW( Unimplemented_Feature )FT_Err_Unimplemented_Feature; |
| 2000 | |
| 2001 | w = FT_REQUEST_WIDTH ( req )( (req)->horiResolution ? ( (req)->width * (FT_Pos)(req )->horiResolution + 36 ) / 72 : (req)->width ); |
| 2002 | h = FT_REQUEST_HEIGHT( req )( (req)->vertResolution ? ( (req)->height * (FT_Pos)(req )->vertResolution + 36 ) / 72 : (req)->height ); |
| 2003 | |
| 2004 | if ( req->width && !req->height ) |
| 2005 | h = w; |
| 2006 | else if ( !req->width && req->height ) |
| 2007 | w = h; |
| 2008 | |
| 2009 | w = FT_PIX_ROUND( w )( ((w) + 32) & ~( __typeof__ ( (w) + 32 ) )63 ); |
| 2010 | h = FT_PIX_ROUND( h )( ((h) + 32) & ~( __typeof__ ( (h) + 32 ) )63 ); |
| 2011 | |
| 2012 | if ( !w || !h ) |
| 2013 | return FT_THROW( Invalid_Pixel_Size )FT_Err_Invalid_Pixel_Size; |
| 2014 | |
| 2015 | for ( i = 0; i < face->num_fixed_sizes; i++ ) |
| 2016 | { |
| 2017 | FT_Bitmap_Size* bsize = face->available_sizes + i; |
| 2018 | |
| 2019 | |
| 2020 | if ( h != FT_PIX_ROUND( bsize->y_ppem )( ((bsize->y_ppem) + 32) & ~( __typeof__ ( (bsize-> y_ppem) + 32 ) )63 ) ) |
| 2021 | continue; |
| 2022 | |
| 2023 | if ( w == FT_PIX_ROUND( bsize->x_ppem )( ((bsize->x_ppem) + 32) & ~( __typeof__ ( (bsize-> x_ppem) + 32 ) )63 ) || ignore_width ) |
| 2024 | { |
| 2025 | FT_TRACE3(( "FT_Match_Size: bitmap strike %d matches\n", i ))do { } while ( 0 ); |
| 2026 | |
| 2027 | if ( size_index ) |
| 2028 | *size_index = (FT_ULong)i; |
| 2029 | |
| 2030 | return FT_Err_Ok; |
| 2031 | } |
| 2032 | } |
| 2033 | |
| 2034 | FT_TRACE3(( "FT_Match_Size: no matching bitmap strike\n" ))do { } while ( 0 ); |
| 2035 | |
| 2036 | return FT_THROW( Invalid_Pixel_Size )FT_Err_Invalid_Pixel_Size; |
| 2037 | } |
| 2038 | |
| 2039 | |
| 2040 | /* documentation is in ftobjs.h */ |
| 2041 | |
| 2042 | FT_BASE_DEF( void )void |
| 2043 | ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics, |
| 2044 | FT_Pos advance ) |
| 2045 | { |
| 2046 | FT_Pos height = metrics->height; |
| 2047 | |
| 2048 | |
| 2049 | /* compensate for glyph with bbox above/below the baseline */ |
| 2050 | if ( metrics->horiBearingY < 0 ) |
| 2051 | { |
| 2052 | if ( height < metrics->horiBearingY ) |
| 2053 | height = metrics->horiBearingY; |
| 2054 | } |
| 2055 | else if ( metrics->horiBearingY > 0 ) |
| 2056 | height -= metrics->horiBearingY; |
| 2057 | |
| 2058 | /* the factor 1.2 is a heuristical value */ |
| 2059 | if ( !advance ) |
| 2060 | advance = height * 12 / 10; |
| 2061 | |
| 2062 | metrics->vertBearingX = metrics->horiBearingX - metrics->horiAdvance / 2; |
| 2063 | metrics->vertBearingY = ( advance - height ) / 2; |
| 2064 | metrics->vertAdvance = advance; |
| 2065 | } |
| 2066 | |
| 2067 | |
| 2068 | static void |
| 2069 | ft_recompute_scaled_metrics( FT_Face face, |
| 2070 | FT_Size_Metrics* metrics ) |
| 2071 | { |
| 2072 | /* Compute root ascender, descender, test height, and max_advance */ |
| 2073 | |
| 2074 | #ifdef GRID_FIT_METRICS |
| 2075 | metrics->ascender = FT_PIX_CEIL( FT_MulFix( face->ascender,( ((FT_MulFix( face->ascender, metrics->y_scale )) + 63 ) & ~( __typeof__ ( (FT_MulFix( face->ascender, metrics ->y_scale )) + 63 ) )63 ) |
| 2076 | metrics->y_scale ) )( ((FT_MulFix( face->ascender, metrics->y_scale )) + 63 ) & ~( __typeof__ ( (FT_MulFix( face->ascender, metrics ->y_scale )) + 63 ) )63 ); |
| 2077 | |
| 2078 | metrics->descender = FT_PIX_FLOOR( FT_MulFix( face->descender,( (FT_MulFix( face->descender, metrics->y_scale )) & ~( __typeof__ ( FT_MulFix( face->descender, metrics->y_scale ) ) )63 ) |
| 2079 | metrics->y_scale ) )( (FT_MulFix( face->descender, metrics->y_scale )) & ~( __typeof__ ( FT_MulFix( face->descender, metrics->y_scale ) ) )63 ); |
| 2080 | |
| 2081 | metrics->height = FT_PIX_ROUND( FT_MulFix( face->height,( ((FT_MulFix( face->height, metrics->y_scale )) + 32) & ~( __typeof__ ( (FT_MulFix( face->height, metrics->y_scale )) + 32 ) )63 ) |
| 2082 | metrics->y_scale ) )( ((FT_MulFix( face->height, metrics->y_scale )) + 32) & ~( __typeof__ ( (FT_MulFix( face->height, metrics->y_scale )) + 32 ) )63 ); |
| 2083 | |
| 2084 | metrics->max_advance = FT_PIX_ROUND( FT_MulFix( face->max_advance_width,( ((FT_MulFix( face->max_advance_width, metrics->x_scale )) + 32) & ~( __typeof__ ( (FT_MulFix( face->max_advance_width , metrics->x_scale )) + 32 ) )63 ) |
| 2085 | metrics->x_scale ) )( ((FT_MulFix( face->max_advance_width, metrics->x_scale )) + 32) & ~( __typeof__ ( (FT_MulFix( face->max_advance_width , metrics->x_scale )) + 32 ) )63 ); |
| 2086 | #else /* !GRID_FIT_METRICS */ |
| 2087 | metrics->ascender = FT_MulFix( face->ascender, |
| 2088 | metrics->y_scale ); |
| 2089 | |
| 2090 | metrics->descender = FT_MulFix( face->descender, |
| 2091 | metrics->y_scale ); |
| 2092 | |
| 2093 | metrics->height = FT_MulFix( face->height, |
| 2094 | metrics->y_scale ); |
| 2095 | |
| 2096 | metrics->max_advance = FT_MulFix( face->max_advance_width, |
| 2097 | metrics->x_scale ); |
| 2098 | #endif /* !GRID_FIT_METRICS */ |
| 2099 | } |
| 2100 | |
| 2101 | |
| 2102 | FT_BASE_DEF( void )void |
| 2103 | FT_Select_Metrics( FT_Face face, |
| 2104 | FT_ULong strike_index ) |
| 2105 | { |
| 2106 | FT_Size_Metrics* metrics; |
| 2107 | FT_Bitmap_Size* bsize; |
| 2108 | |
| 2109 | |
| 2110 | metrics = &face->size->metrics; |
| 2111 | bsize = face->available_sizes + strike_index; |
| 2112 | |
| 2113 | metrics->x_ppem = (FT_UShort)( ( bsize->x_ppem + 32 ) >> 6 ); |
| 2114 | metrics->y_ppem = (FT_UShort)( ( bsize->y_ppem + 32 ) >> 6 ); |
| 2115 | |
| 2116 | if ( FT_IS_SCALABLE( face )( (face)->face_flags & ( 1L << 0 ) ) ) |
| 2117 | { |
| 2118 | metrics->x_scale = FT_DivFix( bsize->x_ppem, |
| 2119 | face->units_per_EM ); |
| 2120 | metrics->y_scale = FT_DivFix( bsize->y_ppem, |
| 2121 | face->units_per_EM ); |
| 2122 | |
| 2123 | ft_recompute_scaled_metrics( face, metrics ); |
| 2124 | } |
| 2125 | else |
| 2126 | { |
| 2127 | metrics->x_scale = 1L << 16; |
| 2128 | metrics->y_scale = 1L << 16; |
| 2129 | metrics->ascender = bsize->y_ppem; |
| 2130 | metrics->descender = 0; |
| 2131 | metrics->height = bsize->height << 6; |
| 2132 | metrics->max_advance = bsize->x_ppem; |
| 2133 | } |
| 2134 | } |
| 2135 | |
| 2136 | |
| 2137 | FT_BASE_DEF( void )void |
| 2138 | FT_Request_Metrics( FT_Face face, |
| 2139 | FT_Size_Request req ) |
| 2140 | { |
| 2141 | FT_Size_Metrics* metrics; |
| 2142 | |
| 2143 | |
| 2144 | metrics = &face->size->metrics; |
| 2145 | |
| 2146 | if ( FT_IS_SCALABLE( face )( (face)->face_flags & ( 1L << 0 ) ) ) |
| 2147 | { |
| 2148 | FT_Long w = 0, h = 0, scaled_w = 0, scaled_h = 0; |
| 2149 | |
| 2150 | |
| 2151 | switch ( req->type ) |
| 2152 | { |
| 2153 | case FT_SIZE_REQUEST_TYPE_NOMINAL: |
| 2154 | w = h = face->units_per_EM; |
| 2155 | break; |
| 2156 | |
| 2157 | case FT_SIZE_REQUEST_TYPE_REAL_DIM: |
| 2158 | w = h = face->ascender - face->descender; |
| 2159 | break; |
| 2160 | |
| 2161 | case FT_SIZE_REQUEST_TYPE_BBOX: |
| 2162 | w = face->bbox.xMax - face->bbox.xMin; |
| 2163 | h = face->bbox.yMax - face->bbox.yMin; |
| 2164 | break; |
| 2165 | |
| 2166 | case FT_SIZE_REQUEST_TYPE_CELL: |
| 2167 | w = face->max_advance_width; |
| 2168 | h = face->ascender - face->descender; |
| 2169 | break; |
| 2170 | |
| 2171 | case FT_SIZE_REQUEST_TYPE_SCALES: |
| 2172 | metrics->x_scale = (FT_Fixed)req->width; |
| 2173 | metrics->y_scale = (FT_Fixed)req->height; |
| 2174 | if ( !metrics->x_scale ) |
| 2175 | metrics->x_scale = metrics->y_scale; |
| 2176 | else if ( !metrics->y_scale ) |
| 2177 | metrics->y_scale = metrics->x_scale; |
| 2178 | goto Calculate_Ppem; |
| 2179 | |
| 2180 | case FT_SIZE_REQUEST_TYPE_MAX: |
| 2181 | break; |
| 2182 | } |
| 2183 | |
| 2184 | /* to be on the safe side */ |
| 2185 | if ( w < 0 ) |
| 2186 | w = -w; |
| 2187 | |
| 2188 | if ( h < 0 ) |
| 2189 | h = -h; |
| 2190 | |
| 2191 | scaled_w = FT_REQUEST_WIDTH ( req )( (req)->horiResolution ? ( (req)->width * (FT_Pos)(req )->horiResolution + 36 ) / 72 : (req)->width ); |
| 2192 | scaled_h = FT_REQUEST_HEIGHT( req )( (req)->vertResolution ? ( (req)->height * (FT_Pos)(req )->vertResolution + 36 ) / 72 : (req)->height ); |
| 2193 | |
| 2194 | /* determine scales */ |
| 2195 | if ( req->width ) |
| 2196 | { |
| 2197 | metrics->x_scale = FT_DivFix( scaled_w, w ); |
| 2198 | |
| 2199 | if ( req->height ) |
| 2200 | { |
| 2201 | metrics->y_scale = FT_DivFix( scaled_h, h ); |
| 2202 | |
| 2203 | if ( req->type == FT_SIZE_REQUEST_TYPE_CELL ) |
| 2204 | { |
| 2205 | if ( metrics->y_scale > metrics->x_scale ) |
| 2206 | metrics->y_scale = metrics->x_scale; |
| 2207 | else |
| 2208 | metrics->x_scale = metrics->y_scale; |
| 2209 | } |
| 2210 | } |
| 2211 | else |
| 2212 | { |
| 2213 | metrics->y_scale = metrics->x_scale; |
| 2214 | scaled_h = FT_MulDiv( scaled_w, h, w ); |
| 2215 | } |
| 2216 | } |
| 2217 | else |
| 2218 | { |
| 2219 | metrics->x_scale = metrics->y_scale = FT_DivFix( scaled_h, h ); |
| 2220 | scaled_w = FT_MulDiv( scaled_h, w, h ); |
| 2221 | } |
| 2222 | |
| 2223 | Calculate_Ppem: |
| 2224 | /* calculate the ppems */ |
| 2225 | if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL ) |
| 2226 | { |
| 2227 | scaled_w = FT_MulFix( face->units_per_EM, metrics->x_scale ); |
| 2228 | scaled_h = FT_MulFix( face->units_per_EM, metrics->y_scale ); |
| 2229 | } |
| 2230 | |
| 2231 | metrics->x_ppem = (FT_UShort)( ( scaled_w + 32 ) >> 6 ); |
| 2232 | metrics->y_ppem = (FT_UShort)( ( scaled_h + 32 ) >> 6 ); |
| 2233 | |
| 2234 | ft_recompute_scaled_metrics( face, metrics ); |
| 2235 | } |
| 2236 | else |
| 2237 | { |
| 2238 | FT_ZERO( metrics )memset( metrics, 0, (FT_Offset)(sizeof ( *(metrics) )) ); |
| 2239 | metrics->x_scale = 1L << 16; |
| 2240 | metrics->y_scale = 1L << 16; |
| 2241 | } |
| 2242 | } |
| 2243 | |
| 2244 | |
| 2245 | /* documentation is in freetype.h */ |
| 2246 | |
| 2247 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2248 | FT_Select_Size( FT_Face face, |
| 2249 | FT_Int strike_index ) |
| 2250 | { |
| 2251 | FT_Error error = FT_Err_Ok; |
| 2252 | FT_Driver_Class clazz; |
| 2253 | |
| 2254 | |
| 2255 | if ( !face || !FT_HAS_FIXED_SIZES( face )( (face)->face_flags & ( 1L << 1 ) ) ) |
| 2256 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 2257 | |
| 2258 | if ( strike_index < 0 || strike_index >= face->num_fixed_sizes ) |
| 2259 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2260 | |
| 2261 | clazz = face->driver->clazz; |
| 2262 | |
| 2263 | if ( clazz->select_size ) |
| 2264 | { |
| 2265 | error = clazz->select_size( face->size, (FT_ULong)strike_index ); |
| 2266 | |
| 2267 | FT_TRACE5(( "FT_Select_Size (%s driver):\n",do { } while ( 0 ) |
| 2268 | face->driver->root.clazz->module_name ))do { } while ( 0 ); |
| 2269 | } |
| 2270 | else |
| 2271 | { |
| 2272 | FT_Select_Metrics( face, (FT_ULong)strike_index ); |
| 2273 | |
| 2274 | FT_TRACE5(( "FT_Select_Size:\n" ))do { } while ( 0 ); |
| 2275 | } |
| 2276 | |
| 2277 | #ifdef FT_DEBUG_LEVEL_TRACE |
| 2278 | { |
| 2279 | FT_Size_Metrics* metrics = &face->size->metrics; |
| 2280 | |
| 2281 | |
| 2282 | FT_TRACE5(( " x scale: %d (%f)\n",do { } while ( 0 ) |
| 2283 | metrics->x_scale, metrics->x_scale / 65536.0 ))do { } while ( 0 ); |
| 2284 | FT_TRACE5(( " y scale: %d (%f)\n",do { } while ( 0 ) |
| 2285 | metrics->y_scale, metrics->y_scale / 65536.0 ))do { } while ( 0 ); |
| 2286 | FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 ))do { } while ( 0 ); |
| 2287 | FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 ))do { } while ( 0 ); |
| 2288 | FT_TRACE5(( " height: %f\n", metrics->height / 64.0 ))do { } while ( 0 ); |
| 2289 | FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 ))do { } while ( 0 ); |
| 2290 | FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem ))do { } while ( 0 ); |
| 2291 | FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem ))do { } while ( 0 ); |
| 2292 | } |
| 2293 | #endif |
| 2294 | |
| 2295 | return error; |
| 2296 | } |
| 2297 | |
| 2298 | |
| 2299 | /* documentation is in freetype.h */ |
| 2300 | |
| 2301 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2302 | FT_Request_Size( FT_Face face, |
| 2303 | FT_Size_Request req ) |
| 2304 | { |
| 2305 | FT_Error error = FT_Err_Ok; |
| 2306 | FT_Driver_Class clazz; |
| 2307 | FT_ULong strike_index; |
| 2308 | |
| 2309 | |
| 2310 | if ( !face ) |
| 2311 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 2312 | |
| 2313 | if ( !req || req->width < 0 || req->height < 0 || |
| 2314 | req->type >= FT_SIZE_REQUEST_TYPE_MAX ) |
| 2315 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2316 | |
| 2317 | /* signal the auto-hinter to recompute its size metrics */ |
| 2318 | /* (if requested) */ |
| 2319 | face->size->internal->autohint_metrics.x_scale = 0; |
| 2320 | |
| 2321 | clazz = face->driver->clazz; |
| 2322 | |
| 2323 | if ( clazz->request_size ) |
| 2324 | { |
| 2325 | error = clazz->request_size( face->size, req ); |
| 2326 | |
| 2327 | FT_TRACE5(( "FT_Request_Size (%s driver):\n",do { } while ( 0 ) |
| 2328 | face->driver->root.clazz->module_name ))do { } while ( 0 ); |
| 2329 | } |
| 2330 | else if ( !FT_IS_SCALABLE( face )( (face)->face_flags & ( 1L << 0 ) ) && FT_HAS_FIXED_SIZES( face )( (face)->face_flags & ( 1L << 1 ) ) ) |
| 2331 | { |
| 2332 | /* |
| 2333 | * The reason that a driver doesn't have `request_size' defined is |
| 2334 | * either that the scaling here suffices or that the supported formats |
| 2335 | * are bitmap-only and size matching is not implemented. |
| 2336 | * |
| 2337 | * In the latter case, a simple size matching is done. |
| 2338 | */ |
| 2339 | error = FT_Match_Size( face, req, 0, &strike_index ); |
| 2340 | if ( error ) |
| 2341 | return error; |
| 2342 | |
| 2343 | return FT_Select_Size( face, (FT_Int)strike_index ); |
| 2344 | } |
| 2345 | else |
| 2346 | { |
| 2347 | FT_Request_Metrics( face, req ); |
| 2348 | |
| 2349 | FT_TRACE5(( "FT_Request_Size:\n" ))do { } while ( 0 ); |
| 2350 | } |
| 2351 | |
| 2352 | #ifdef FT_DEBUG_LEVEL_TRACE |
| 2353 | { |
| 2354 | FT_Size_Metrics* metrics = &face->size->metrics; |
| 2355 | |
| 2356 | |
| 2357 | FT_TRACE5(( " x scale: %d (%f)\n",do { } while ( 0 ) |
| 2358 | metrics->x_scale, metrics->x_scale / 65536.0 ))do { } while ( 0 ); |
| 2359 | FT_TRACE5(( " y scale: %d (%f)\n",do { } while ( 0 ) |
| 2360 | metrics->y_scale, metrics->y_scale / 65536.0 ))do { } while ( 0 ); |
| 2361 | FT_TRACE5(( " ascender: %f\n", metrics->ascender / 64.0 ))do { } while ( 0 ); |
| 2362 | FT_TRACE5(( " descender: %f\n", metrics->descender / 64.0 ))do { } while ( 0 ); |
| 2363 | FT_TRACE5(( " height: %f\n", metrics->height / 64.0 ))do { } while ( 0 ); |
| 2364 | FT_TRACE5(( " max advance: %f\n", metrics->max_advance / 64.0 ))do { } while ( 0 ); |
| 2365 | FT_TRACE5(( " x ppem: %d\n", metrics->x_ppem ))do { } while ( 0 ); |
| 2366 | FT_TRACE5(( " y ppem: %d\n", metrics->y_ppem ))do { } while ( 0 ); |
| 2367 | } |
| 2368 | #endif |
| 2369 | |
| 2370 | return error; |
| 2371 | } |
| 2372 | |
| 2373 | |
| 2374 | /* documentation is in freetype.h */ |
| 2375 | |
| 2376 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2377 | FT_Set_Char_Size( FT_Face face, |
| 2378 | FT_F26Dot6 char_width, |
| 2379 | FT_F26Dot6 char_height, |
| 2380 | FT_UInt horz_resolution, |
| 2381 | FT_UInt vert_resolution ) |
| 2382 | { |
| 2383 | FT_Size_RequestRec req; |
| 2384 | |
| 2385 | |
| 2386 | /* check of `face' delayed to `FT_Request_Size' */ |
| 2387 | |
| 2388 | if ( !char_width ) |
| 2389 | char_width = char_height; |
| 2390 | else if ( !char_height ) |
| 2391 | char_height = char_width; |
| 2392 | |
| 2393 | if ( !horz_resolution ) |
| 2394 | horz_resolution = vert_resolution; |
| 2395 | else if ( !vert_resolution ) |
| 2396 | vert_resolution = horz_resolution; |
| 2397 | |
| 2398 | if ( char_width < 1 * 64 ) |
| 2399 | char_width = 1 * 64; |
| 2400 | if ( char_height < 1 * 64 ) |
| 2401 | char_height = 1 * 64; |
| 2402 | |
| 2403 | if ( !horz_resolution ) |
| 2404 | horz_resolution = vert_resolution = 72; |
| 2405 | |
| 2406 | req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; |
| 2407 | req.width = char_width; |
| 2408 | req.height = char_height; |
| 2409 | req.horiResolution = horz_resolution; |
| 2410 | req.vertResolution = vert_resolution; |
| 2411 | |
| 2412 | return FT_Request_Size( face, &req ); |
| 2413 | } |
| 2414 | |
| 2415 | |
| 2416 | /* documentation is in freetype.h */ |
| 2417 | |
| 2418 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2419 | FT_Set_Pixel_Sizes( FT_Face face, |
| 2420 | FT_UInt pixel_width, |
| 2421 | FT_UInt pixel_height ) |
| 2422 | { |
| 2423 | FT_Size_RequestRec req; |
| 2424 | |
| 2425 | |
| 2426 | /* check of `face' delayed to `FT_Request_Size' */ |
| 2427 | |
| 2428 | if ( pixel_width == 0 ) |
| 2429 | pixel_width = pixel_height; |
| 2430 | else if ( pixel_height == 0 ) |
| 2431 | pixel_height = pixel_width; |
| 2432 | |
| 2433 | if ( pixel_width < 1 ) |
| 2434 | pixel_width = 1; |
| 2435 | if ( pixel_height < 1 ) |
| 2436 | pixel_height = 1; |
| 2437 | |
| 2438 | /* use `>=' to avoid potential compiler warning on 16bit platforms */ |
| 2439 | if ( pixel_width >= 0xFFFFU ) |
| 2440 | pixel_width = 0xFFFFU; |
| 2441 | if ( pixel_height >= 0xFFFFU ) |
| 2442 | pixel_height = 0xFFFFU; |
| 2443 | |
| 2444 | req.type = FT_SIZE_REQUEST_TYPE_NOMINAL; |
| 2445 | req.width = (FT_Long)( pixel_width << 6 ); |
| 2446 | req.height = (FT_Long)( pixel_height << 6 ); |
| 2447 | req.horiResolution = 0; |
| 2448 | req.vertResolution = 0; |
| 2449 | |
| 2450 | return FT_Request_Size( face, &req ); |
| 2451 | } |
| 2452 | |
| 2453 | |
| 2454 | /* documentation is in freetype.h */ |
| 2455 | |
| 2456 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2457 | FT_Select_Charmap( FT_Face face, |
| 2458 | FT_Encoding encoding ) |
| 2459 | { |
| 2460 | FT_CharMap* cur; |
| 2461 | FT_CharMap* limit; |
| 2462 | |
| 2463 | |
| 2464 | if ( !face ) |
| 2465 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 2466 | |
| 2467 | if ( encoding == FT_ENCODING_NONE ) |
| 2468 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2469 | |
| 2470 | /* FT_ENCODING_UNICODE is special. We try to find the `best' Unicode */ |
| 2471 | /* charmap available, i.e., one with UCS-4 characters, if possible. */ |
| 2472 | /* */ |
| 2473 | /* This is done by find_unicode_charmap() above, to share code. */ |
| 2474 | if ( encoding == FT_ENCODING_UNICODE ) |
| 2475 | return find_unicode_charmap( face ); |
| 2476 | |
| 2477 | cur = face->charmaps; |
| 2478 | if ( !cur ) |
| 2479 | return FT_THROW( Invalid_CharMap_Handle )FT_Err_Invalid_CharMap_Handle; |
| 2480 | |
| 2481 | limit = cur + face->num_charmaps; |
| 2482 | |
| 2483 | for ( ; cur < limit; cur++ ) |
| 2484 | { |
| 2485 | if ( cur[0]->encoding == encoding ) |
| 2486 | { |
| 2487 | face->charmap = cur[0]; |
| 2488 | return 0; |
| 2489 | } |
| 2490 | } |
| 2491 | |
| 2492 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2493 | } |
| 2494 | |
| 2495 | |
| 2496 | /* documentation is in freetype.h */ |
| 2497 | |
| 2498 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2499 | FT_Set_Charmap( FT_Face face, |
| 2500 | FT_CharMap charmap ) |
| 2501 | { |
| 2502 | FT_CharMap* cur; |
| 2503 | FT_CharMap* limit; |
| 2504 | |
| 2505 | |
| 2506 | if ( !face ) |
| 2507 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 2508 | |
| 2509 | cur = face->charmaps; |
| 2510 | if ( !cur || !charmap ) |
| 2511 | return FT_THROW( Invalid_CharMap_Handle )FT_Err_Invalid_CharMap_Handle; |
| 2512 | |
| 2513 | if ( FT_Get_CMap_Format( charmap ) == 14 ) |
| 2514 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2515 | |
| 2516 | limit = cur + face->num_charmaps; |
| 2517 | |
| 2518 | for ( ; cur < limit; cur++ ) |
| 2519 | { |
| 2520 | if ( cur[0] == charmap ) |
| 2521 | { |
| 2522 | face->charmap = cur[0]; |
| 2523 | return FT_Err_Ok; |
| 2524 | } |
| 2525 | } |
| 2526 | |
| 2527 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2528 | } |
| 2529 | |
| 2530 | |
| 2531 | static void |
| 2532 | ft_cmap_done_internal( FT_CMap cmap ) |
| 2533 | { |
| 2534 | FT_CMap_Class clazz = cmap->clazz; |
| 2535 | FT_Face face = cmap->charmap.face; |
| 2536 | FT_Memory memory = FT_FACE_MEMORY( face )( (FT_Face)(face) )->memory; |
| 2537 | |
| 2538 | |
| 2539 | if ( clazz->done ) |
| 2540 | clazz->done( cmap ); |
| 2541 | |
| 2542 | FT_FREE( cmap )do { ft_mem_free( memory, (cmap) ); (cmap) = ((void*)0); } while ( 0 ); |
| 2543 | } |
| 2544 | |
| 2545 | |
| 2546 | FT_BASE_DEF( void )void |
| 2547 | FT_CMap_Done( FT_CMap cmap ) |
| 2548 | { |
| 2549 | if ( cmap ) |
| 2550 | { |
| 2551 | FT_Face face = cmap->charmap.face; |
| 2552 | FT_Memory memory = FT_FACE_MEMORY( face )( (FT_Face)(face) )->memory; |
| 2553 | FT_Error error; |
| 2554 | FT_Int i, j; |
| 2555 | |
| 2556 | |
| 2557 | for ( i = 0; i < face->num_charmaps; i++ ) |
| 2558 | { |
| 2559 | if ( (FT_CMap)face->charmaps[i] == cmap ) |
| 2560 | { |
| 2561 | FT_CharMap last_charmap = face->charmaps[face->num_charmaps - 1]; |
| 2562 | |
| 2563 | |
| 2564 | if ( FT_RENEW_ARRAY( face->charmaps,( ((face->charmaps) = (ft_mem_realloc( memory, sizeof ( *( face->charmaps) ), (FT_Long)(face->num_charmaps), (FT_Long )(face->num_charmaps - 1), (face->charmaps), &error ))), error != 0 ) |
| 2565 | face->num_charmaps,( ((face->charmaps) = (ft_mem_realloc( memory, sizeof ( *( face->charmaps) ), (FT_Long)(face->num_charmaps), (FT_Long )(face->num_charmaps - 1), (face->charmaps), &error ))), error != 0 ) |
| 2566 | face->num_charmaps - 1 )( ((face->charmaps) = (ft_mem_realloc( memory, sizeof ( *( face->charmaps) ), (FT_Long)(face->num_charmaps), (FT_Long )(face->num_charmaps - 1), (face->charmaps), &error ))), error != 0 ) ) |
| 2567 | return; |
| 2568 | |
| 2569 | /* remove it from our list of charmaps */ |
| 2570 | for ( j = i + 1; j < face->num_charmaps; j++ ) |
| 2571 | { |
| 2572 | if ( j == face->num_charmaps - 1 ) |
| 2573 | face->charmaps[j - 1] = last_charmap; |
| 2574 | else |
| 2575 | face->charmaps[j - 1] = face->charmaps[j]; |
| 2576 | } |
| 2577 | |
| 2578 | face->num_charmaps--; |
| 2579 | |
| 2580 | if ( (FT_CMap)face->charmap == cmap ) |
| 2581 | face->charmap = NULL((void*)0); |
| 2582 | |
| 2583 | ft_cmap_done_internal( cmap ); |
| 2584 | |
| 2585 | break; |
| 2586 | } |
| 2587 | } |
| 2588 | } |
| 2589 | } |
| 2590 | |
| 2591 | |
| 2592 | FT_BASE_DEF( FT_Error )FT_Error |
| 2593 | FT_CMap_New( FT_CMap_Class clazz, |
| 2594 | FT_Pointer init_data, |
| 2595 | FT_CharMap charmap, |
| 2596 | FT_CMap *acmap ) |
| 2597 | { |
| 2598 | FT_Error error = FT_Err_Ok; |
| 2599 | FT_Face face; |
| 2600 | FT_Memory memory; |
| 2601 | FT_CMap cmap = NULL((void*)0); |
| 2602 | |
| 2603 | |
| 2604 | if ( !clazz || !charmap || !charmap->face ) |
| 2605 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2606 | |
| 2607 | face = charmap->face; |
| 2608 | memory = FT_FACE_MEMORY( face )( (FT_Face)(face) )->memory; |
| 2609 | |
| 2610 | if ( !FT_ALLOC( cmap, clazz->size )( ((cmap) = (ft_mem_alloc( memory, (FT_Long)(clazz->size), &error ))), error != 0 ) ) |
| 2611 | { |
| 2612 | cmap->charmap = *charmap; |
| 2613 | cmap->clazz = clazz; |
| 2614 | |
| 2615 | if ( clazz->init ) |
| 2616 | { |
| 2617 | error = clazz->init( cmap, init_data ); |
| 2618 | if ( error ) |
| 2619 | goto Fail; |
| 2620 | } |
| 2621 | |
| 2622 | /* add it to our list of charmaps */ |
| 2623 | if ( FT_RENEW_ARRAY( face->charmaps,( ((face->charmaps) = (ft_mem_realloc( memory, sizeof ( *( face->charmaps) ), (FT_Long)(face->num_charmaps), (FT_Long )(face->num_charmaps + 1), (face->charmaps), &error ))), error != 0 ) |
| 2624 | face->num_charmaps,( ((face->charmaps) = (ft_mem_realloc( memory, sizeof ( *( face->charmaps) ), (FT_Long)(face->num_charmaps), (FT_Long )(face->num_charmaps + 1), (face->charmaps), &error ))), error != 0 ) |
| 2625 | face->num_charmaps + 1 )( ((face->charmaps) = (ft_mem_realloc( memory, sizeof ( *( face->charmaps) ), (FT_Long)(face->num_charmaps), (FT_Long )(face->num_charmaps + 1), (face->charmaps), &error ))), error != 0 ) ) |
| 2626 | goto Fail; |
| 2627 | |
| 2628 | face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap; |
| 2629 | } |
| 2630 | |
| 2631 | Exit: |
| 2632 | if ( acmap ) |
| 2633 | *acmap = cmap; |
| 2634 | |
| 2635 | return error; |
| 2636 | |
| 2637 | Fail: |
| 2638 | ft_cmap_done_internal( cmap ); |
| 2639 | cmap = NULL((void*)0); |
| 2640 | goto Exit; |
| 2641 | } |
| 2642 | |
| 2643 | |
| 2644 | /* documentation is in freetype.h */ |
| 2645 | |
| 2646 | FT_EXPORT_DEF( FT_UInt )extern FT_UInt |
| 2647 | FT_Get_Char_Index( FT_Face face, |
| 2648 | FT_ULong charcode ) |
| 2649 | { |
| 2650 | FT_UInt result = 0; |
| 2651 | |
| 2652 | |
| 2653 | if ( face && face->charmap ) |
| 2654 | { |
| 2655 | FT_CMap cmap = FT_CMAP( face->charmap )( (FT_CMap)( face->charmap ) ); |
| 2656 | |
| 2657 | |
| 2658 | if ( charcode > 0xFFFFFFFFUL ) |
| 2659 | { |
| 2660 | FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ))do { } while ( 0 ); |
| 2661 | FT_TRACE1(( " 0x%x is truncated\n", charcode ))do { } while ( 0 ); |
| 2662 | } |
| 2663 | |
| 2664 | result = cmap->clazz->char_index( cmap, (FT_UInt32)charcode ); |
| 2665 | if ( result >= (FT_UInt)face->num_glyphs ) |
| 2666 | result = 0; |
| 2667 | } |
| 2668 | |
| 2669 | return result; |
| 2670 | } |
| 2671 | |
| 2672 | |
| 2673 | /* documentation is in freetype.h */ |
| 2674 | |
| 2675 | FT_EXPORT_DEF( FT_ULong )extern FT_ULong |
| 2676 | FT_Get_Next_Char( FT_Face face, |
| 2677 | FT_ULong charcode, |
| 2678 | FT_UInt *agindex ) |
| 2679 | { |
| 2680 | FT_ULong result = 0; |
| 2681 | FT_UInt gindex = 0; |
| 2682 | |
| 2683 | |
| 2684 | if ( face && face->charmap && face->num_glyphs ) |
| 2685 | { |
| 2686 | FT_UInt32 code = (FT_UInt32)charcode; |
| 2687 | FT_CMap cmap = FT_CMAP( face->charmap )( (FT_CMap)( face->charmap ) ); |
| 2688 | |
| 2689 | |
| 2690 | do |
| 2691 | { |
| 2692 | gindex = cmap->clazz->char_next( cmap, &code ); |
| 2693 | |
| 2694 | } while ( gindex >= (FT_UInt)face->num_glyphs ); |
| 2695 | |
| 2696 | result = ( gindex == 0 ) ? 0 : code; |
| 2697 | } |
| 2698 | |
| 2699 | if ( agindex ) |
| 2700 | *agindex = gindex; |
| 2701 | |
| 2702 | return result; |
| 2703 | } |
| 2704 | |
| 2705 | |
| 2706 | /* documentation is in freetype.h */ |
| 2707 | |
| 2708 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2709 | FT_Face_Properties( FT_Face face, |
| 2710 | FT_UInt num_properties, |
| 2711 | FT_Parameter* properties ) |
| 2712 | { |
| 2713 | FT_Error error = FT_Err_Ok; |
| 2714 | |
| 2715 | |
| 2716 | if ( num_properties > 0 && !properties ) |
| 2717 | { |
| 2718 | error = FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2719 | goto Exit; |
| 2720 | } |
| 2721 | |
| 2722 | for ( ; num_properties > 0; num_properties-- ) |
| 2723 | { |
| 2724 | if ( properties->tag == FT_PARAM_TAG_STEM_DARKENING(FT_Tag) ( ( (FT_ULong)'d' << 24 ) | ( (FT_ULong)'a' << 16 ) | ( (FT_ULong)'r' << 8 ) | (FT_ULong)'k' ) ) |
| 2725 | { |
| 2726 | if ( properties->data ) |
| 2727 | { |
| 2728 | if ( *( (FT_Bool*)properties->data ) == TRUE1 ) |
| 2729 | face->internal->no_stem_darkening = FALSE0; |
| 2730 | else |
| 2731 | face->internal->no_stem_darkening = TRUE1; |
| 2732 | } |
| 2733 | else |
| 2734 | { |
| 2735 | /* use module default */ |
| 2736 | face->internal->no_stem_darkening = -1; |
| 2737 | } |
| 2738 | } |
| 2739 | else |
| 2740 | { |
| 2741 | error = FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2742 | goto Exit; |
| 2743 | } |
| 2744 | |
| 2745 | if ( error ) |
| 2746 | break; |
| 2747 | |
| 2748 | properties++; |
| 2749 | } |
| 2750 | |
| 2751 | Exit: |
| 2752 | return error; |
| 2753 | } |
| 2754 | |
| 2755 | |
| 2756 | /* documentation is in freetype.h */ |
| 2757 | |
| 2758 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2759 | FT_Get_Glyph_Name( FT_Face face, |
| 2760 | FT_UInt glyph_index, |
| 2761 | FT_Pointer buffer, |
| 2762 | FT_UInt buffer_max ) |
| 2763 | { |
| 2764 | FT_Error error; |
| 2765 | FT_Service_GlyphDict service; |
| 2766 | |
| 2767 | |
| 2768 | if ( !face ) |
| 2769 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 2770 | |
| 2771 | if ( !buffer || buffer_max == 0 ) |
| 2772 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2773 | |
| 2774 | /* clean up buffer */ |
| 2775 | ((FT_Byte*)buffer)[0] = '\0'; |
| 2776 | |
| 2777 | if ( (FT_Long)glyph_index >= face->num_glyphs ) |
| 2778 | return FT_THROW( Invalid_Glyph_Index )FT_Err_Invalid_Glyph_Index; |
| 2779 | |
| 2780 | if ( !FT_HAS_GLYPH_NAMES( face )( (face)->face_flags & ( 1L << 9 ) ) ) |
| 2781 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2782 | |
| 2783 | FT_FACE_LOOKUP_SERVICE( face, service, GLYPH_DICT )do { FT_Pointer svc; svc = ( (FT_Face)(face) )->internal-> services. service_GLYPH_DICT; if ( svc == ((FT_Pointer)~(FT_PtrDist )1) ) svc = ((void*)0); else if ( svc == ((void*)0) ) { do { FT_Module module = ( (FT_Module)(( (FT_Face)(face) )->driver) ); FT_Pointer _tmp_ = ((void*)0); if ( module->clazz->get_interface ) _tmp_ = module->clazz->get_interface( module, "glyph-dict" ); svc = _tmp_; } while ( 0 ); ( (FT_Face)(face) )->internal ->services. service_GLYPH_DICT = (FT_Pointer)( svc != ((void *)0) ? svc : ((FT_Pointer)~(FT_PtrDist)1) ); } service = svc; } while ( 0 ); |
| 2784 | if ( service && service->get_name ) |
| 2785 | error = service->get_name( face, glyph_index, buffer, buffer_max ); |
| 2786 | else |
| 2787 | error = FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 2788 | |
| 2789 | return error; |
| 2790 | } |
| 2791 | |
| 2792 | |
| 2793 | /* documentation is in tttables.h */ |
| 2794 | |
| 2795 | FT_EXPORT_DEF( FT_Long )extern FT_Long |
| 2796 | FT_Get_CMap_Format( FT_CharMap charmap ) |
| 2797 | { |
| 2798 | FT_Service_TTCMaps service; |
| 2799 | FT_Face face; |
| 2800 | TT_CMapInfo cmap_info; |
| 2801 | |
| 2802 | |
| 2803 | if ( !charmap || !charmap->face ) |
| 2804 | return -1; |
| 2805 | |
| 2806 | face = charmap->face; |
| 2807 | FT_FACE_FIND_SERVICE( face, service, TT_CMAP )do { FT_Module module = ( (FT_Module)(( (FT_Face)(face) )-> driver) ); FT_Pointer _tmp_ = ((void*)0); if ( module->clazz ->get_interface ) _tmp_ = module->clazz->get_interface ( module, "tt-cmaps" ); service = _tmp_; } while ( 0 ); |
| 2808 | if ( !service ) |
| 2809 | return -1; |
| 2810 | if ( service->get_cmap_info( charmap, &cmap_info )) |
| 2811 | return -1; |
| 2812 | |
| 2813 | return cmap_info.format; |
| 2814 | } |
| 2815 | |
| 2816 | |
| 2817 | /* documentation is in ftsizes.h */ |
| 2818 | |
| 2819 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 2820 | FT_Activate_Size( FT_Size size ) |
| 2821 | { |
| 2822 | FT_Face face; |
| 2823 | |
| 2824 | |
| 2825 | if ( !size ) |
| 2826 | return FT_THROW( Invalid_Size_Handle )FT_Err_Invalid_Size_Handle; |
| 2827 | |
| 2828 | face = size->face; |
| 2829 | if ( !face || !face->driver ) |
| 2830 | return FT_THROW( Invalid_Face_Handle )FT_Err_Invalid_Face_Handle; |
| 2831 | |
| 2832 | /* we don't need anything more complex than that; all size objects */ |
| 2833 | /* are already listed by the face */ |
| 2834 | face->size = size; |
| 2835 | |
| 2836 | return FT_Err_Ok; |
| 2837 | } |
| 2838 | |
| 2839 | |
| 2840 | /*************************************************************************/ |
| 2841 | /*************************************************************************/ |
| 2842 | /*************************************************************************/ |
| 2843 | /**** ****/ |
| 2844 | /**** ****/ |
| 2845 | /**** R E N D E R E R S ****/ |
| 2846 | /**** ****/ |
| 2847 | /**** ****/ |
| 2848 | /*************************************************************************/ |
| 2849 | /*************************************************************************/ |
| 2850 | /*************************************************************************/ |
| 2851 | |
| 2852 | /* lookup a renderer by glyph format in the library's list */ |
| 2853 | FT_BASE_DEF( FT_Renderer )FT_Renderer |
| 2854 | FT_Lookup_Renderer( FT_Library library, |
| 2855 | FT_Glyph_Format format, |
| 2856 | FT_ListNode* node ) |
| 2857 | { |
| 2858 | FT_ListNode cur; |
| 2859 | FT_Renderer result = NULL((void*)0); |
| 2860 | |
| 2861 | |
| 2862 | if ( !library ) |
| 2863 | goto Exit; |
| 2864 | |
| 2865 | cur = library->renderers.head; |
| 2866 | |
| 2867 | if ( node ) |
| 2868 | { |
| 2869 | if ( *node ) |
| 2870 | cur = (*node)->next; |
| 2871 | *node = NULL((void*)0); |
| 2872 | } |
| 2873 | |
| 2874 | while ( cur ) |
| 2875 | { |
| 2876 | FT_Renderer renderer = FT_RENDERER( cur->data )( (FT_Renderer)(cur->data) ); |
| 2877 | |
| 2878 | |
| 2879 | if ( renderer->glyph_format == format ) |
| 2880 | { |
| 2881 | if ( node ) |
| 2882 | *node = cur; |
| 2883 | |
| 2884 | result = renderer; |
| 2885 | break; |
| 2886 | } |
| 2887 | cur = cur->next; |
| 2888 | } |
| 2889 | |
| 2890 | Exit: |
| 2891 | return result; |
| 2892 | } |
| 2893 | |
| 2894 | |
| 2895 | static FT_Renderer |
| 2896 | ft_lookup_glyph_renderer( FT_GlyphSlot slot ) |
| 2897 | { |
| 2898 | FT_Face face = slot->face; |
| 2899 | FT_Library library = FT_FACE_LIBRARY( face )( (FT_Face)(face) )->driver->root.library; |
| 2900 | FT_Renderer result = library->cur_renderer; |
| 2901 | |
| 2902 | |
| 2903 | if ( !result || result->glyph_format != slot->format ) |
| 2904 | result = FT_Lookup_Renderer( library, slot->format, 0 ); |
| 2905 | |
| 2906 | return result; |
| 2907 | } |
| 2908 | |
| 2909 | |
| 2910 | static void |
| 2911 | ft_set_current_renderer( FT_Library library ) |
| 2912 | { |
| 2913 | FT_Renderer renderer; |
| 2914 | |
| 2915 | |
| 2916 | renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, 0 ); |
| 2917 | library->cur_renderer = renderer; |
| 2918 | } |
| 2919 | |
| 2920 | |
| 2921 | static FT_Error |
| 2922 | ft_add_renderer( FT_Module module ) |
| 2923 | { |
| 2924 | FT_Library library = module->library; |
| 2925 | FT_Memory memory = library->memory; |
| 2926 | FT_Error error; |
| 2927 | FT_ListNode node = NULL((void*)0); |
| 2928 | |
| 2929 | |
| 2930 | if ( FT_NEW( node )( ((node) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(node) )), &error ))), error != 0 ) ) |
| 2931 | goto Exit; |
| 2932 | |
| 2933 | { |
| 2934 | FT_Renderer render = FT_RENDERER( module )( (FT_Renderer)(module) ); |
| 2935 | FT_Renderer_Class* clazz = (FT_Renderer_Class*)module->clazz; |
| 2936 | |
| 2937 | |
| 2938 | render->clazz = clazz; |
| 2939 | render->glyph_format = clazz->glyph_format; |
| 2940 | |
| 2941 | /* allocate raster object if needed */ |
| 2942 | if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && |
| 2943 | clazz->raster_class->raster_new ) |
| 2944 | { |
| 2945 | error = clazz->raster_class->raster_new( memory, &render->raster ); |
| 2946 | if ( error ) |
| 2947 | goto Fail; |
| 2948 | |
| 2949 | render->raster_render = clazz->raster_class->raster_render; |
| 2950 | render->render = clazz->render_glyph; |
| 2951 | } |
| 2952 | |
| 2953 | /* add to list */ |
| 2954 | node->data = module; |
| 2955 | FT_List_Add( &library->renderers, node ); |
| 2956 | |
| 2957 | ft_set_current_renderer( library ); |
| 2958 | } |
| 2959 | |
| 2960 | Fail: |
| 2961 | if ( error ) |
| 2962 | FT_FREE( node )do { ft_mem_free( memory, (node) ); (node) = ((void*)0); } while ( 0 ); |
| 2963 | |
| 2964 | Exit: |
| 2965 | return error; |
| 2966 | } |
| 2967 | |
| 2968 | |
| 2969 | static void |
| 2970 | ft_remove_renderer( FT_Module module ) |
| 2971 | { |
| 2972 | FT_Library library; |
| 2973 | FT_Memory memory; |
| 2974 | FT_ListNode node; |
| 2975 | |
| 2976 | |
| 2977 | library = module->library; |
| 2978 | if ( !library ) |
| 2979 | return; |
| 2980 | |
| 2981 | memory = library->memory; |
| 2982 | |
| 2983 | node = FT_List_Find( &library->renderers, module ); |
| 2984 | if ( node ) |
| 2985 | { |
| 2986 | FT_Renderer render = FT_RENDERER( module )( (FT_Renderer)(module) ); |
| 2987 | |
| 2988 | |
| 2989 | /* release raster object, if any */ |
| 2990 | if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && |
| 2991 | render->raster ) |
| 2992 | render->clazz->raster_class->raster_done( render->raster ); |
| 2993 | |
| 2994 | /* remove from list */ |
| 2995 | FT_List_Remove( &library->renderers, node ); |
| 2996 | FT_FREE( node )do { ft_mem_free( memory, (node) ); (node) = ((void*)0); } while ( 0 ); |
| 2997 | |
| 2998 | ft_set_current_renderer( library ); |
| 2999 | } |
| 3000 | } |
| 3001 | |
| 3002 | |
| 3003 | FT_BASE_DEF( FT_Error )FT_Error |
| 3004 | FT_Render_Glyph_Internal( FT_Library library, |
| 3005 | FT_GlyphSlot slot, |
| 3006 | FT_Render_Mode render_mode ) |
| 3007 | { |
| 3008 | FT_Error error = FT_Err_Ok; |
| 3009 | FT_Renderer renderer; |
| 3010 | |
| 3011 | |
| 3012 | /* if it is already a bitmap, no need to do anything */ |
| 3013 | switch ( slot->format ) |
| 3014 | { |
| 3015 | case FT_GLYPH_FORMAT_BITMAP: /* already a bitmap, don't do anything */ |
| 3016 | break; |
| 3017 | |
| 3018 | default: |
| 3019 | { |
| 3020 | FT_ListNode node = NULL((void*)0); |
| 3021 | |
| 3022 | |
| 3023 | /* small shortcut for the very common case */ |
| 3024 | if ( slot->format == FT_GLYPH_FORMAT_OUTLINE ) |
| 3025 | { |
| 3026 | renderer = library->cur_renderer; |
| 3027 | node = library->renderers.head; |
| 3028 | } |
| 3029 | else |
| 3030 | renderer = FT_Lookup_Renderer( library, slot->format, &node ); |
| 3031 | |
| 3032 | error = FT_ERR( Unimplemented_Feature )FT_Err_Unimplemented_Feature; |
| 3033 | while ( renderer ) |
| 3034 | { |
| 3035 | error = renderer->render( renderer, slot, render_mode, NULL((void*)0) ); |
| 3036 | if ( !error || |
| 3037 | FT_ERR_NEQ( error, Cannot_Render_Glyph )( ( (error) & 0xFF ) != ( (FT_Err_Cannot_Render_Glyph) & 0xFF ) ) ) |
| 3038 | break; |
| 3039 | |
| 3040 | /* FT_Err_Cannot_Render_Glyph is returned if the render mode */ |
| 3041 | /* is unsupported by the current renderer for this glyph image */ |
| 3042 | /* format. */ |
| 3043 | |
| 3044 | /* now, look for another renderer that supports the same */ |
| 3045 | /* format. */ |
| 3046 | renderer = FT_Lookup_Renderer( library, slot->format, &node ); |
| 3047 | } |
| 3048 | } |
| 3049 | } |
| 3050 | |
| 3051 | return error; |
| 3052 | } |
| 3053 | |
| 3054 | |
| 3055 | /* documentation is in freetype.h */ |
| 3056 | |
| 3057 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 3058 | FT_Render_Glyph( FT_GlyphSlot slot, |
| 3059 | FT_Render_Mode render_mode ) |
| 3060 | { |
| 3061 | FT_Library library; |
| 3062 | |
| 3063 | |
| 3064 | if ( !slot || !slot->face ) |
| 3065 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 3066 | |
| 3067 | library = FT_FACE_LIBRARY( slot->face )( (FT_Face)(slot->face) )->driver->root.library; |
| 3068 | |
| 3069 | return FT_Render_Glyph_Internal( library, slot, render_mode ); |
| 3070 | } |
| 3071 | |
| 3072 | |
| 3073 | /*************************************************************************/ |
| 3074 | /*************************************************************************/ |
| 3075 | /*************************************************************************/ |
| 3076 | /**** ****/ |
| 3077 | /**** ****/ |
| 3078 | /**** M O D U L E S ****/ |
| 3079 | /**** ****/ |
| 3080 | /**** ****/ |
| 3081 | /*************************************************************************/ |
| 3082 | /*************************************************************************/ |
| 3083 | /*************************************************************************/ |
| 3084 | |
| 3085 | |
| 3086 | /*************************************************************************/ |
| 3087 | /* */ |
| 3088 | /* <Function> */ |
| 3089 | /* Destroy_Module */ |
| 3090 | /* */ |
| 3091 | /* <Description> */ |
| 3092 | /* Destroys a given module object. For drivers, this also destroys */ |
| 3093 | /* all child faces. */ |
| 3094 | /* */ |
| 3095 | /* <InOut> */ |
| 3096 | /* module :: A handle to the target driver object. */ |
| 3097 | /* */ |
| 3098 | /* <Note> */ |
| 3099 | /* The driver _must_ be LOCKED! */ |
| 3100 | /* */ |
| 3101 | static void |
| 3102 | Destroy_Module( FT_Module module ) |
| 3103 | { |
| 3104 | FT_Memory memory = module->memory; |
| 3105 | FT_Module_Class* clazz = module->clazz; |
| 3106 | FT_Library library = module->library; |
| 3107 | |
| 3108 | |
| 3109 | if ( library && library->auto_hinter == module ) |
| 3110 | library->auto_hinter = NULL((void*)0); |
| 3111 | |
| 3112 | /* if the module is a renderer */ |
| 3113 | if ( FT_MODULE_IS_RENDERER( module )( ( (FT_Module)(module) )->clazz->module_flags & 2 ) ) |
| 3114 | ft_remove_renderer( module ); |
| 3115 | |
| 3116 | /* if the module is a font driver, add some steps */ |
| 3117 | if ( FT_MODULE_IS_DRIVER( module )( ( (FT_Module)(module) )->clazz->module_flags & 1 ) ) |
| 3118 | Destroy_Driver( FT_DRIVER( module )( (FT_Driver)(module) ) ); |
| 3119 | |
| 3120 | /* finalize the module object */ |
| 3121 | if ( clazz->module_done ) |
| 3122 | clazz->module_done( module ); |
| 3123 | |
| 3124 | /* discard it */ |
| 3125 | FT_FREE( module )do { ft_mem_free( memory, (module) ); (module) = ((void*)0); } while ( 0 ); |
| 3126 | } |
| 3127 | |
| 3128 | |
| 3129 | /* documentation is in ftmodapi.h */ |
| 3130 | |
| 3131 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 3132 | FT_Add_Module( FT_Library library, |
| 3133 | const FT_Module_Class* clazz ) |
| 3134 | { |
| 3135 | FT_Error error; |
| 3136 | FT_Memory memory; |
| 3137 | FT_Module module = NULL((void*)0); |
| 3138 | FT_UInt nn; |
| 3139 | |
| 3140 | |
| 3141 | #define FREETYPE_VER_FIXED( ( (FT_Long)2 << 16 ) | 9 ) ( ( (FT_Long)FREETYPE_MAJOR2 << 16 ) | \ |
| 3142 | FREETYPE_MINOR9 ) |
| 3143 | |
| 3144 | if ( !library ) |
| 3145 | return FT_THROW( Invalid_Library_Handle )FT_Err_Invalid_Library_Handle; |
| 3146 | |
| 3147 | if ( !clazz ) |
| 3148 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 3149 | |
| 3150 | /* check FreeType version */ |
| 3151 | if ( clazz->module_requires > FREETYPE_VER_FIXED( ( (FT_Long)2 << 16 ) | 9 ) ) |
| 3152 | return FT_THROW( Invalid_Version )FT_Err_Invalid_Version; |
| 3153 | |
| 3154 | /* look for a module with the same name in the library's table */ |
| 3155 | for ( nn = 0; nn < library->num_modules; nn++ ) |
| 3156 | { |
| 3157 | module = library->modules[nn]; |
| 3158 | if ( ft_strcmpstrcmp( module->clazz->module_name, clazz->module_name ) == 0 ) |
| 3159 | { |
| 3160 | /* this installed module has the same name, compare their versions */ |
| 3161 | if ( clazz->module_version <= module->clazz->module_version ) |
| 3162 | return FT_THROW( Lower_Module_Version )FT_Err_Lower_Module_Version; |
| 3163 | |
| 3164 | /* remove the module from our list, then exit the loop to replace */ |
| 3165 | /* it by our new version.. */ |
| 3166 | FT_Remove_Module( library, module ); |
| 3167 | break; |
| 3168 | } |
| 3169 | } |
| 3170 | |
| 3171 | memory = library->memory; |
| 3172 | error = FT_Err_Ok; |
| 3173 | |
| 3174 | if ( library->num_modules >= FT_MAX_MODULES32 ) |
| 3175 | { |
| 3176 | error = FT_THROW( Too_Many_Drivers )FT_Err_Too_Many_Drivers; |
| 3177 | goto Exit; |
| 3178 | } |
| 3179 | |
| 3180 | /* allocate module object */ |
| 3181 | if ( FT_ALLOC( module, clazz->module_size )( ((module) = (ft_mem_alloc( memory, (FT_Long)(clazz->module_size ), &error ))), error != 0 ) ) |
| 3182 | goto Exit; |
| 3183 | |
| 3184 | /* base initialization */ |
| 3185 | module->library = library; |
| 3186 | module->memory = memory; |
| 3187 | module->clazz = (FT_Module_Class*)clazz; |
| 3188 | |
| 3189 | /* check whether the module is a renderer - this must be performed */ |
| 3190 | /* before the normal module initialization */ |
| 3191 | if ( FT_MODULE_IS_RENDERER( module )( ( (FT_Module)(module) )->clazz->module_flags & 2 ) ) |
| 3192 | { |
| 3193 | /* add to the renderers list */ |
| 3194 | error = ft_add_renderer( module ); |
| 3195 | if ( error ) |
| 3196 | goto Fail; |
| 3197 | } |
| 3198 | |
| 3199 | /* is the module a auto-hinter? */ |
| 3200 | if ( FT_MODULE_IS_HINTER( module )( ( (FT_Module)(module) )->clazz->module_flags & 4 ) ) |
| 3201 | library->auto_hinter = module; |
| 3202 | |
| 3203 | /* if the module is a font driver */ |
| 3204 | if ( FT_MODULE_IS_DRIVER( module )( ( (FT_Module)(module) )->clazz->module_flags & 1 ) ) |
| 3205 | { |
| 3206 | FT_Driver driver = FT_DRIVER( module )( (FT_Driver)(module) ); |
| 3207 | |
| 3208 | |
| 3209 | driver->clazz = (FT_Driver_Class)module->clazz; |
| 3210 | } |
| 3211 | |
| 3212 | if ( clazz->module_init ) |
| 3213 | { |
| 3214 | error = clazz->module_init( module ); |
| 3215 | if ( error ) |
| 3216 | goto Fail; |
| 3217 | } |
| 3218 | |
| 3219 | /* add module to the library's table */ |
| 3220 | library->modules[library->num_modules++] = module; |
| 3221 | |
| 3222 | Exit: |
| 3223 | return error; |
| 3224 | |
| 3225 | Fail: |
| 3226 | if ( FT_MODULE_IS_RENDERER( module )( ( (FT_Module)(module) )->clazz->module_flags & 2 ) ) |
| 3227 | { |
| 3228 | FT_Renderer renderer = FT_RENDERER( module )( (FT_Renderer)(module) ); |
| 3229 | |
| 3230 | |
| 3231 | if ( renderer->clazz && |
| 3232 | renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE && |
| 3233 | renderer->raster ) |
| 3234 | renderer->clazz->raster_class->raster_done( renderer->raster ); |
| 3235 | } |
| 3236 | |
| 3237 | FT_FREE( module )do { ft_mem_free( memory, (module) ); (module) = ((void*)0); } while ( 0 ); |
| 3238 | goto Exit; |
| 3239 | } |
| 3240 | |
| 3241 | |
| 3242 | /* documentation is in ftmodapi.h */ |
| 3243 | |
| 3244 | FT_EXPORT_DEF( FT_Module )extern FT_Module |
| 3245 | FT_Get_Module( FT_Library library, |
| 3246 | const char* module_name ) |
| 3247 | { |
| 3248 | FT_Module result = NULL((void*)0); |
| 3249 | FT_Module* cur; |
| 3250 | FT_Module* limit; |
| 3251 | |
| 3252 | |
| 3253 | if ( !library || !module_name ) |
| 3254 | return result; |
| 3255 | |
| 3256 | cur = library->modules; |
| 3257 | limit = cur + library->num_modules; |
| 3258 | |
| 3259 | for ( ; cur < limit; cur++ ) |
| 3260 | if ( ft_strcmpstrcmp( cur[0]->clazz->module_name, module_name ) == 0 ) |
| 3261 | { |
| 3262 | result = cur[0]; |
| 3263 | break; |
| 3264 | } |
| 3265 | |
| 3266 | return result; |
| 3267 | } |
| 3268 | |
| 3269 | |
| 3270 | /* documentation is in ftobjs.h */ |
| 3271 | |
| 3272 | FT_BASE_DEF( const void* )const void* |
| 3273 | FT_Get_Module_Interface( FT_Library library, |
| 3274 | const char* mod_name ) |
| 3275 | { |
| 3276 | FT_Module module; |
| 3277 | |
| 3278 | |
| 3279 | /* test for valid `library' delayed to FT_Get_Module() */ |
| 3280 | |
| 3281 | module = FT_Get_Module( library, mod_name ); |
| 3282 | |
| 3283 | return module ? module->clazz->module_interface : 0; |
| 3284 | } |
| 3285 | |
| 3286 | |
| 3287 | FT_BASE_DEF( FT_Pointer )FT_Pointer |
| 3288 | ft_module_get_service( FT_Module module, |
| 3289 | const char* service_id, |
| 3290 | FT_Bool global ) |
| 3291 | { |
| 3292 | FT_Pointer result = NULL((void*)0); |
| 3293 | |
| 3294 | |
| 3295 | if ( module ) |
| 3296 | { |
| 3297 | FT_ASSERT( module->clazz && module->clazz->get_interface )do { } while ( 0 ); |
| 3298 | |
| 3299 | /* first, look for the service in the module */ |
| 3300 | if ( module->clazz->get_interface ) |
| 3301 | result = module->clazz->get_interface( module, service_id ); |
| 3302 | |
| 3303 | if ( global && !result ) |
| 3304 | { |
| 3305 | /* we didn't find it, look in all other modules then */ |
| 3306 | FT_Library library = module->library; |
| 3307 | FT_Module* cur = library->modules; |
| 3308 | FT_Module* limit = cur + library->num_modules; |
| 3309 | |
| 3310 | |
| 3311 | for ( ; cur < limit; cur++ ) |
| 3312 | { |
| 3313 | if ( cur[0] != module ) |
| 3314 | { |
| 3315 | FT_ASSERT( cur[0]->clazz )do { } while ( 0 ); |
| 3316 | |
| 3317 | if ( cur[0]->clazz->get_interface ) |
| 3318 | { |
| 3319 | result = cur[0]->clazz->get_interface( cur[0], service_id ); |
| 3320 | if ( result ) |
| 3321 | break; |
| 3322 | } |
| 3323 | } |
| 3324 | } |
| 3325 | } |
| 3326 | } |
| 3327 | |
| 3328 | return result; |
| 3329 | } |
| 3330 | |
| 3331 | |
| 3332 | /* documentation is in ftmodapi.h */ |
| 3333 | |
| 3334 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 3335 | FT_Remove_Module( FT_Library library, |
| 3336 | FT_Module module ) |
| 3337 | { |
| 3338 | /* try to find the module from the table, then remove it from there */ |
| 3339 | |
| 3340 | if ( !library ) |
| 3341 | return FT_THROW( Invalid_Library_Handle )FT_Err_Invalid_Library_Handle; |
| 3342 | |
| 3343 | if ( module ) |
| 3344 | { |
| 3345 | FT_Module* cur = library->modules; |
| 3346 | FT_Module* limit = cur + library->num_modules; |
| 3347 | |
| 3348 | |
| 3349 | for ( ; cur < limit; cur++ ) |
| 3350 | { |
| 3351 | if ( cur[0] == module ) |
| 3352 | { |
| 3353 | /* remove it from the table */ |
| 3354 | library->num_modules--; |
| 3355 | limit--; |
| 3356 | while ( cur < limit ) |
| 3357 | { |
| 3358 | cur[0] = cur[1]; |
| 3359 | cur++; |
| 3360 | } |
| 3361 | limit[0] = NULL((void*)0); |
| 3362 | |
| 3363 | /* destroy the module */ |
| 3364 | Destroy_Module( module ); |
| 3365 | |
| 3366 | return FT_Err_Ok; |
| 3367 | } |
| 3368 | } |
| 3369 | } |
| 3370 | return FT_THROW( Invalid_Driver_Handle )FT_Err_Invalid_Driver_Handle; |
| 3371 | } |
| 3372 | |
| 3373 | |
| 3374 | /*************************************************************************/ |
| 3375 | /*************************************************************************/ |
| 3376 | /*************************************************************************/ |
| 3377 | /**** ****/ |
| 3378 | /**** ****/ |
| 3379 | /**** L I B R A R Y ****/ |
| 3380 | /**** ****/ |
| 3381 | /**** ****/ |
| 3382 | /*************************************************************************/ |
| 3383 | /*************************************************************************/ |
| 3384 | /*************************************************************************/ |
| 3385 | |
| 3386 | |
| 3387 | /* documentation is in ftmodapi.h */ |
| 3388 | |
| 3389 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 3390 | FT_New_Library( FT_Memory memory, |
| 3391 | FT_Library *alibrary ) |
| 3392 | { |
| 3393 | FT_Library library = NULL((void*)0); |
| 3394 | FT_Error error; |
| 3395 | |
| 3396 | |
| 3397 | if ( !memory || !alibrary ) |
| 3398 | return FT_THROW( Invalid_Argument )FT_Err_Invalid_Argument; |
| 3399 | |
| 3400 | /* first of all, allocate the library object */ |
| 3401 | if ( FT_NEW( library )( ((library) = (ft_mem_alloc( memory, (FT_Long)(sizeof ( *(library ) )), &error ))), error != 0 ) ) |
| 3402 | return error; |
| 3403 | |
| 3404 | library->memory = memory; |
| 3405 | library->refcount = 1; |
| 3406 | |
| 3407 | /* That's ok now */ |
| 3408 | *alibrary = library; |
| 3409 | |
| 3410 | return FT_Err_Ok; |
| 3411 | } |
| 3412 | |
| 3413 | |
| 3414 | /* documentation is in ftmodapi.h */ |
| 3415 | |
| 3416 | FT_EXPORT_DEF( FT_Error )extern FT_Error |
| 3417 | FT_Done_Library( FT_Library library ) |
| 3418 | { |
| 3419 | FT_Memory memory; |
| 3420 | |
| 3421 | |
| 3422 | if ( !library ) |
| 3423 | return FT_THROW( Invalid_Library_Handle )FT_Err_Invalid_Library_Handle; |
| 3424 | |
| 3425 | library->refcount--; |
| 3426 | if ( library->refcount > 0 ) |
| 3427 | goto Exit; |
| 3428 | |
| 3429 | memory = library->memory; |
| 3430 | |
| 3431 | /* |
| 3432 | * Close all faces in the library. If we don't do this, we can have |
| 3433 | * some subtle memory leaks. |
| 3434 | * |
| 3435 | * Example: |
| 3436 | * |
| 3437 | * - the cff font driver uses the pshinter module in cff_size_done |
| 3438 | * - if the pshinter module is destroyed before the cff font driver, |
| 3439 | * opened FT_Face objects managed by the driver are not properly |
| 3440 | * destroyed, resulting in a memory leak |
| 3441 | * |
| 3442 | * Some faces are dependent on other faces, like Type42 faces that |
| 3443 | * depend on TrueType faces synthesized internally. |
| 3444 | * |
| 3445 | * The order of drivers should be specified in driver_name[]. |
| 3446 | */ |
| 3447 | { |
| 3448 | FT_UInt m, n; |
| 3449 | const char* driver_name[] = { "type42", NULL((void*)0) }; |
| 3450 | |
| 3451 | |
| 3452 | for ( m = 0; |
| 3453 | m < sizeof ( driver_name ) / sizeof ( driver_name[0] ); |
| 3454 | m++ ) |
| 3455 | { |
| 3456 | for ( n = 0; n < library->num_modules; n++ ) |
| 3457 | { |
| 3458 | FT_Module module = library->modules[n]; |
| 3459 | const char* module_name = module->clazz->module_name; |
| 3460 | FT_List faces; |
| 3461 | |
| 3462 | |
| 3463 | if ( driver_name[m] && |
| 3464 | ft_strcmpstrcmp( module_name, driver_name[m] ) != 0 ) |
| 3465 | continue; |
| 3466 | |
| 3467 | if ( ( module->clazz->module_flags & FT_MODULE_FONT_DRIVER1 ) == 0 ) |
| 3468 | continue; |
| 3469 | |
| 3470 | FT_TRACE7(( "FT_Done_Library: close faces for %s\n", module_name ))do { } while ( 0 ); |
| 3471 | |
| 3472 | faces = &FT_DRIVER( module )( (FT_Driver)(module) )->faces_list; |
| 3473 | while ( faces->head ) |
| 3474 | { |
| 3475 | FT_Done_Face( FT_FACE( faces->head->data )( (FT_Face)(faces->head->data) ) ); |
| 3476 | if ( faces->head ) |
| 3477 | FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" ))do { } while ( 0 ); |
| 3478 | } |
| 3479 | } |
| 3480 | } |
| 3481 | } |
| 3482 | |
| 3483 | /* Close all other modules in the library */ |
| 3484 | #if 1 |
| 3485 | /* XXX Modules are removed in the reversed order so that */ |
| 3486 | /* type42 module is removed before truetype module. This */ |
| 3487 | /* avoids double free in some occasions. It is a hack. */ |
| 3488 | while ( library->num_modules > 0 ) |
| 3489 | FT_Remove_Module( library, |
| 3490 | library->modules[library->num_modules - 1] ); |
| 3491 | #else |
| 3492 | { |
| 3493 | FT_UInt n; |
| 3494 | |
| 3495 | |
| 3496 | for ( n = 0; n < library->num_modules; n++ ) |
| 3497 | { |
| 3498 | FT_Module module = library->modules[n]; |
| 3499 | |
| 3500 | |
| 3501 | if ( module ) |
| 3502 | { |
| 3503 | Destroy_Module( module ); |
| 3504 | library->modules[n] = NULL((void*)0); |
| 3505 | } |
| 3506 | } |
| 3507 | } |
| 3508 | #endif |
| 3509 | |
| 3510 | FT_FREE( library )do { ft_mem_free( memory, (library) ); (library) = ((void*)0) ; } while ( 0 ); |
| 3511 | |
| 3512 | Exit: |
| 3513 | return FT_Err_Ok; |
| 3514 | } |
| 3515 | |
| 3516 | |
| 3517 | /* END */ |