diff options
Diffstat (limited to 'nx-X11/extras/freetype2/src/autofit/afglobal.c')
| -rw-r--r-- | nx-X11/extras/freetype2/src/autofit/afglobal.c | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/nx-X11/extras/freetype2/src/autofit/afglobal.c b/nx-X11/extras/freetype2/src/autofit/afglobal.c deleted file mode 100644 index 54852ab31..000000000 --- a/nx-X11/extras/freetype2/src/autofit/afglobal.c +++ /dev/null @@ -1,236 +0,0 @@ -#include "afglobal.h" -#include "afdummy.h" -#include "aflatin.h" - - /* populate this list when you add new scripts - */ - static AF_ScriptClass const af_script_classes[] = - { - & af_dummy_script_class, - & af_latin_script_class, - - NULL /* do not remove */ - }; - -#define AF_SCRIPT_LIST_DEFAULT 1 /* index of default script in 'af_script_classes' */ -#define AF_SCRIPT_LIST_NONE 255 /* indicates an uncovered glyph */ - - /* - * note that glyph_scripts[] is used to map each glyph into - * an index into the 'af_script_classes' array. - * - */ - typedef struct AF_FaceGlobalsRec_ - { - FT_Face face; - FT_UInt glyph_count; /* same as face->num_glyphs */ - FT_Byte* glyph_scripts; - - AF_ScriptMetrics metrics[ AF_SCRIPT_MAX ]; - - } AF_FaceGlobalsRec; - - - - - /* this function is used to compute the script index of each glyph - * within a given face - */ - static FT_Error - af_face_globals_compute_script_coverage( AF_FaceGlobals globals ) - { - FT_Error error = 0; - FT_Face face = globals->face; - FT_CharMap old_charmap = face->charmap; - FT_Byte* gscripts = globals->glyph_scripts; - FT_UInt ss; - - /* the value 255 means "uncovered glyph" - */ - FT_MEM_SET( globals->glyph_scripts, - AF_SCRIPT_LIST_NONE, - globals->glyph_count ); - - error = FT_Select_Charmap( face, FT_ENCODING_UNICODE ); - if ( error ) - { - /* ignore this error, we'll simply use Latin as the standard - * script. XXX: Shouldn't we rather disable hinting ?? - */ - error = 0; - goto Exit; - } - - /* scan each script in a Unicode charmap - */ - for ( ss = 0; af_script_classes[ss]; ss++ ) - { - AF_ScriptClass clazz = af_script_classes[ss]; - AF_Script_UniRange range; - - if ( clazz->script_uni_ranges == NULL ) - continue; - - /* scan all unicode points in the range, and set the corresponding - * glyph script index - */ - for ( range = clazz->script_uni_ranges; range->first != 0; range++ ) - { - FT_ULong charcode = range->first; - FT_UInt gindex; - - gindex = FT_Get_Char_Index( face, charcode ); - - if ( gindex != 0 && - gindex < globals->glyph_count && - gscripts[ gindex ] == AF_SCRIPT_LIST_NONE ) - { - gscripts[ gindex ] = (FT_Byte) ss; - } - for (;;) - { - charcode = FT_Get_Next_Char( face, charcode, &gindex ); - - if ( gindex == 0 || charcode > range->last ) - break; - - if ( gindex < globals->glyph_count && - gscripts[ gindex ] == AF_SCRIPT_LIST_NONE ) - { - gscripts[ gindex ] = (FT_Byte) ss; - } - } - } - } - - Exit: - /* by default, all uncovered glyphs are set to the latin script - * XXX: shouldnt' we disable hinting or do something similar ? - */ - { - FT_UInt nn; - - for ( nn = 0; nn < globals->glyph_count; nn++ ) - { - if ( gscripts[ nn ] == AF_SCRIPT_LIST_NONE ) - gscripts[ nn ] = AF_SCRIPT_LIST_DEFAULT; - } - } - - FT_Set_Charmap( face, old_charmap ); - return error; - } - - - - FT_LOCAL_DEF( FT_Error ) - af_face_globals_new( FT_Face face, - AF_FaceGlobals *aglobals ) - { - FT_Error error; - FT_Memory memory; - AF_FaceGlobals globals; - - memory = face->memory; - - if ( !FT_ALLOC( globals, sizeof(*globals) + - face->num_glyphs*sizeof(FT_Byte) ) ) - { - globals->face = face; - globals->glyph_count = face->num_glyphs; - globals->glyph_scripts = (FT_Byte*)( globals+1 ); - - error = af_face_globals_compute_script_coverage( globals ); - if ( error ) - { - af_face_globals_free( globals ); - globals = NULL; - } - } - - *aglobals = globals; - return error; - } - - - FT_LOCAL_DEF( void ) - af_face_globals_free( AF_FaceGlobals globals ) - { - if ( globals ) - { - FT_Memory memory = globals->face->memory; - FT_UInt nn; - - for ( nn = 0; nn < AF_SCRIPT_MAX; nn++ ) - { - if ( globals->metrics[nn] ) - { - AF_ScriptClass clazz = af_script_classes[nn]; - - FT_ASSERT( globals->metrics[nn]->clazz == clazz ); - - if ( clazz->script_metrics_done ) - clazz->script_metrics_done( globals->metrics[nn] ); - - FT_FREE( globals->metrics[nn] ); - } - } - - globals->glyph_count = 0; - globals->glyph_scripts = NULL; /* no need to free this one !! */ - globals->face = NULL; - FT_FREE( globals ); - } - } - - - FT_LOCAL_DEF( FT_Error ) - af_face_globals_get_metrics( AF_FaceGlobals globals, - FT_UInt gindex, - AF_ScriptMetrics *ametrics ) - { - AF_ScriptMetrics metrics = NULL; - FT_UInt index; - AF_ScriptClass clazz; - FT_Error error = 0; - - if ( gindex >= globals->glyph_count ) - { - error = FT_Err_Invalid_Argument; - goto Exit; - } - - index = globals->glyph_scripts[ gindex ]; - clazz = af_script_classes[ index ]; - metrics = globals->metrics[ clazz->script ]; - if ( metrics == NULL ) - { - /* create the global metrics object when needed - */ - FT_Memory memory = globals->face->memory; - - if ( FT_ALLOC( metrics, clazz->script_metrics_size ) ) - goto Exit; - - metrics->clazz = clazz; - - if ( clazz->script_metrics_init ) - { - error = clazz->script_metrics_init( metrics, globals->face ); - if ( error ) - { - if ( clazz->script_metrics_done ) - clazz->script_metrics_done( metrics ); - - FT_FREE( metrics ); - goto Exit; - } - } - - globals->metrics[ clazz->script ] = metrics; - } - - Exit: - *ametrics = metrics; - return error; - } |