diff options
Diffstat (limited to 'src/base/ftobjs.c')
| -rw-r--r-- | src/base/ftobjs.c | 316 |
1 files changed, 279 insertions, 37 deletions
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c index fa08094..f167b2f 100644 --- a/src/base/ftobjs.c +++ b/src/base/ftobjs.c @@ -4,7 +4,7 @@ /* */ /* The FreeType private base classes (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -36,6 +36,11 @@ #include FT_SERVICE_KERNING_H #include FT_SERVICE_TRUETYPE_ENGINE_H +#ifdef ANDROID_FONT_HACK +#include <unistd.h> +#include <fcntl.h> +#endif + #define GRID_FIT_METRICS FT_BASE_DEF( FT_Pointer ) @@ -572,6 +577,38 @@ load_flags &= ~FT_LOAD_RENDER; } +#ifdef ANDROID_FONT_HACK + else + { + static int hack_mode; + + if (hack_mode == 0) { + do { + int fd = open("/data/misc/font-hack", O_RDONLY); + char buff[2]; + int ret; + + hack_mode = 1; /*means light node by default */ + if (fd < 0) + break; + + ret = read(fd, buff, 1); + if (ret == 1) + hack_mode = 1 + (buff[0] - '0'); + + close(fd); + } while (0); + } + + switch (hack_mode) + { + case 1: + load_flags &= 0xfff0ffff; + load_flags |= FT_LOAD_TARGET_LIGHT; + break; + } + } +#endif /* * Determine whether we need to auto-hint or not. @@ -634,12 +671,24 @@ goto Load_Ok; } - /* load auto-hinted outline */ - hinting = (FT_AutoHinter_Service)hinter->clazz->module_interface; + { + FT_Face_Internal internal = face->internal; + FT_Int transform_flags = internal->transform_flags; + + + /* since the auto-hinter calls FT_Load_Glyph by itself, */ + /* make sure that glyphs aren't transformed */ + internal->transform_flags = 0; + + /* load auto-hinted outline */ + hinting = (FT_AutoHinter_Service)hinter->clazz->module_interface; + + error = hinting->load_glyph( (FT_AutoHinter)hinter, + slot, face->size, + glyph_index, load_flags ); - error = hinting->load_glyph( (FT_AutoHinter)hinter, - slot, face->size, - glyph_index, load_flags ); + internal->transform_flags = transform_flags; + } } else { @@ -883,14 +932,13 @@ /* are limited to the BMP (said UCS-2 encoding.) */ /* */ /* This function is called from open_face() (just below), and also */ - /* from FT_Select_Charmap( ..., FT_ENCODING_UNICODE). */ + /* from FT_Select_Charmap( ..., FT_ENCODING_UNICODE ). */ /* */ static FT_Error find_unicode_charmap( FT_Face face ) { FT_CharMap* first; FT_CharMap* cur; - FT_CharMap* unicmap = NULL; /* some UCS-2 map, if we found it */ /* caller should have already checked that `face' is valid */ @@ -935,32 +983,32 @@ { if ( cur[0]->encoding == FT_ENCODING_UNICODE ) { - unicmap = cur; /* record we found a Unicode charmap */ - - /* XXX If some new encodings to represent UCS-4 are added, */ - /* they should be added here. */ + /* XXX If some new encodings to represent UCS-4 are added, */ + /* they should be added here. */ if ( ( cur[0]->platform_id == TT_PLATFORM_MICROSOFT && - cur[0]->encoding_id == TT_MS_ID_UCS_4 ) || + cur[0]->encoding_id == TT_MS_ID_UCS_4 ) || ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE && - cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32 ) ) - - /* Hurray! We found a UCS-4 charmap. We can stop the scan! */ + cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32 ) ) { face->charmap = cur[0]; - return 0; + return FT_Err_Ok; } } } - /* We do not have any UCS-4 charmap. Sigh. */ - /* Let's see if we have some other kind of Unicode charmap, though. */ - if ( unicmap != NULL ) + /* We do not have any UCS-4 charmap. */ + /* Do the loop again and search for UCS-2 charmaps. */ + cur = first + face->num_charmaps; + + for ( ; --cur >= first; ) { - face->charmap = unicmap[0]; - return 0; + if ( cur[0]->encoding == FT_ENCODING_UNICODE ) + { + face->charmap = cur[0]; + return FT_Err_Ok; + } } - /* Chou blanc! */ return FT_Err_Invalid_CharMap_Handle; } @@ -968,6 +1016,45 @@ /*************************************************************************/ /* */ /* <Function> */ + /* find_variant_selector_charmap */ + /* */ + /* <Description> */ + /* This function finds the variant selector charmap, if there is one. */ + /* There can only be one (platform=0, specific=5, format=14). */ + /* */ + static FT_CharMap + find_variant_selector_charmap( FT_Face face ) + { + FT_CharMap* first; + FT_CharMap* end; + FT_CharMap* cur; + + + /* caller should have already checked that `face' is valid */ + FT_ASSERT( face ); + + first = face->charmaps; + + if ( !first ) + return NULL; + + end = first + face->num_charmaps; /* points after the last one */ + + for ( cur = first; cur < end; ++cur ) + { + if ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE && + cur[0]->encoding_id == TT_APPLE_ID_VARIANT_SELECTOR && + FT_Get_CMap_Format( cur[0] ) == 14 ) + return cur[0]; + } + + return NULL; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ /* open_face */ /* */ /* <Description> */ @@ -1013,15 +1100,17 @@ for ( i = 0; i < num_params && !face->internal->incremental_interface; i++ ) if ( params[i].tag == FT_PARAM_TAG_INCREMENTAL ) - face->internal->incremental_interface = params[i].data; + face->internal->incremental_interface = + (FT_Incremental_Interface)params[i].data; } #endif - error = clazz->init_face( stream, - face, - (FT_Int)face_index, - num_params, - params ); + if ( clazz->init_face ) + error = clazz->init_face( stream, + face, + (FT_Int)face_index, + num_params, + params ); if ( error ) goto Fail; @@ -1044,7 +1133,8 @@ if ( error ) { destroy_charmaps( face, memory ); - clazz->done_face( face ); + if ( clazz->done_face ) + clazz->done_face( face ); FT_FREE( internal ); FT_FREE( face ); *aface = 0; @@ -1488,6 +1578,9 @@ FT_Long dlen, offset; + if ( NULL == stream ) + return FT_Err_Invalid_Stream_Operation; + error = FT_Stream_Seek( stream, 0 ); if ( error ) goto Exit; @@ -1661,6 +1754,8 @@ FT_Face face = 0; FT_ListNode node = 0; FT_Bool external_stream; + FT_Module* cur; + FT_Module* limit; /* test for valid `library' delayed to */ @@ -1675,7 +1770,7 @@ /* create input stream */ error = FT_Stream_New( library, args, &stream ); if ( error ) - goto Exit; + goto Fail3; memory = library->memory; @@ -1712,8 +1807,8 @@ else { /* check each font driver for an appropriate format */ - FT_Module* cur = library->modules; - FT_Module* limit = cur + library->num_modules; + cur = library->modules; + limit = cur + library->num_modules; for ( ; cur < limit; cur++ ) @@ -1747,7 +1842,8 @@ /* If we are on the mac, and we get an FT_Err_Invalid_Stream_Operation */ /* it may be because we have an empty data fork, so we need to check */ /* the resource fork. */ - if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format && + if ( FT_ERROR_BASE( error ) != FT_Err_Cannot_Open_Stream && + FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format && FT_ERROR_BASE( error ) != FT_Err_Invalid_Stream_Operation ) goto Fail2; @@ -2631,6 +2727,8 @@ cur = face->charmaps; if ( !cur ) return FT_Err_Invalid_CharMap_Handle; + if ( FT_Get_CMap_Format( charmap ) == 14 ) + return FT_Err_Invalid_Argument; limit = cur + face->num_charmaps; @@ -2852,6 +2950,149 @@ /* documentation is in freetype.h */ FT_EXPORT_DEF( FT_UInt ) + FT_Face_GetCharVariantIndex( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ) + { + FT_UInt result = 0; + + + if ( face && face->charmap && + face->charmap->encoding == FT_ENCODING_UNICODE ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + FT_CMap ucmap = FT_CMAP( face->charmap ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + + + result = vcmap->clazz->char_var_index( vcmap, ucmap, charcode, + variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_Int ) + FT_Face_GetCharVariantIsDefault( FT_Face face, + FT_ULong charcode, + FT_ULong variantSelector ) + { + FT_Int result = -1; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + + + result = vcmap->clazz->char_var_default( vcmap, charcode, + variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetVariantSelectors( FT_Face face ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + result = vcmap->clazz->variant_list( vcmap, memory ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetVariantsOfChar( FT_Face face, + FT_ULong charcode ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + result = vcmap->clazz->charvariant_list( vcmap, memory, charcode ); + } + } + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt32* ) + FT_Face_GetCharsOfVariant( FT_Face face, + FT_ULong variantSelector ) + { + FT_UInt32 *result = NULL; + + + if ( face ) + { + FT_CharMap charmap = find_variant_selector_charmap( face ); + + + if ( charmap != NULL ) + { + FT_CMap vcmap = FT_CMAP( charmap ); + FT_Memory memory = FT_FACE_MEMORY( face ); + + + result = vcmap->clazz->variantchar_list( vcmap, memory, + variantSelector ); + } + } + + return result; + } + + + /* documentation is in freetype.h */ + + FT_EXPORT_DEF( FT_UInt ) FT_Get_Name_Index( FT_Face face, FT_String* glyph_name ) { @@ -3725,9 +3966,10 @@ /* allocate the render pool */ library->raster_pool_size = FT_RENDER_POOL_SIZE; - if ( FT_RENDER_POOL_SIZE > 0 ) - if ( FT_ALLOC( library->raster_pool, FT_RENDER_POOL_SIZE ) ) - goto Fail; +#if FT_RENDER_POOL_SIZE > 0 + if ( FT_ALLOC( library->raster_pool, FT_RENDER_POOL_SIZE ) ) + goto Fail; +#endif /* That's ok now */ *alibrary = library; |