diff options
Diffstat (limited to 'libfreetype/pcfdriver.c')
| -rw-r--r-- | libfreetype/pcfdriver.c | 501 |
1 files changed, 0 insertions, 501 deletions
diff --git a/libfreetype/pcfdriver.c b/libfreetype/pcfdriver.c deleted file mode 100644 index e995b8ee..00000000 --- a/libfreetype/pcfdriver.c +++ /dev/null @@ -1,501 +0,0 @@ -/* pcfdriver.c - - FreeType font driver for pcf files - - Copyright (C) 2000-2001, 2002 by - Francesco Zappa Nardelli - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. -*/ - - -#include <ft2build.h> - -#include FT_INTERNAL_DEBUG_H -#include FT_INTERNAL_STREAM_H -#include FT_INTERNAL_OBJECTS_H -#include FT_GZIP_H -#include FT_ERRORS_H - -#include "pcf.h" -#include "pcfdriver.h" -#include "pcfutil.h" - -#include "pcferror.h" - -#undef FT_COMPONENT -#define FT_COMPONENT trace_pcfread - - - typedef struct PCF_CMapRec_ - { - FT_CMapRec cmap; - FT_UInt num_encodings; - PCF_Encoding encodings; - - } PCF_CMapRec, *PCF_CMap; - - - FT_CALLBACK_DEF( FT_Error ) - pcf_cmap_init( PCF_CMap cmap ) - { - PCF_Face face = (PCF_Face)FT_CMAP_FACE( cmap ); - - - cmap->num_encodings = (FT_UInt)face->nencodings; - cmap->encodings = face->encodings; - - return FT_Err_Ok; - } - - - FT_CALLBACK_DEF( void ) - pcf_cmap_done( PCF_CMap cmap ) - { - cmap->encodings = NULL; - cmap->num_encodings = 0; - } - - - FT_CALLBACK_DEF( FT_UInt ) - pcf_cmap_char_index( PCF_CMap cmap, - FT_UInt32 charcode ) - { - PCF_Encoding encodings = cmap->encodings; - FT_UInt min, max, mid; - FT_UInt result = 0; - - - min = 0; - max = cmap->num_encodings; - - while ( min < max ) - { - FT_UInt32 code; - - - mid = ( min + max ) >> 1; - code = encodings[mid].enc; - - if ( charcode == code ) - { - result = encodings[mid].glyph + 1; - break; - } - - if ( charcode < code ) - max = mid; - else - min = mid + 1; - } - - return result; - } - - - FT_CALLBACK_DEF( FT_UInt ) - pcf_cmap_char_next( PCF_CMap cmap, - FT_UInt32 *acharcode ) - { - PCF_Encoding encodings = cmap->encodings; - FT_UInt min, max, mid; - FT_UInt32 charcode = *acharcode + 1; - FT_UInt result = 0; - - - min = 0; - max = cmap->num_encodings; - - while ( min < max ) - { - FT_UInt32 code; - - - mid = ( min + max ) >> 1; - code = encodings[mid].enc; - - if ( charcode == code ) - { - result = encodings[mid].glyph + 1; - goto Exit; - } - - if ( charcode < code ) - max = mid; - else - min = mid + 1; - } - - charcode = 0; - if ( min < cmap->num_encodings ) - { - charcode = encodings[min].enc; - result = encodings[min].glyph + 1; - } - - Exit: - *acharcode = charcode; - return result; - } - - - FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec pcf_cmap_class = - { - sizeof( PCF_CMapRec ), - (FT_CMap_InitFunc) pcf_cmap_init, - (FT_CMap_DoneFunc) pcf_cmap_done, - (FT_CMap_CharIndexFunc)pcf_cmap_char_index, - (FT_CMap_CharNextFunc) pcf_cmap_char_next - }; - - - /*************************************************************************/ - /* */ - /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ - /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ - /* messages during execution. */ - /* */ -#undef FT_COMPONENT -#define FT_COMPONENT trace_pcfdriver - - - FT_CALLBACK_DEF( FT_Error ) - PCF_Face_Done( PCF_Face face ) - { - FT_Memory memory = FT_FACE_MEMORY( face ); - - - FT_FREE( face->encodings ); - FT_FREE( face->metrics ); - - /* free properties */ - { - PCF_Property prop = face->properties; - FT_Int i; - - - for ( i = 0; i < face->nprops; i++ ) - { - prop = &face->properties[i]; - - FT_FREE( prop->name ); - if ( prop->isString ) - FT_FREE( prop->value ); - } - - FT_FREE( face->properties ); - } - - FT_FREE( face->toc.tables ); - FT_FREE( face->root.family_name ); - FT_FREE( face->root.available_sizes ); - FT_FREE( face->charset_encoding ); - FT_FREE( face->charset_registry ); - - FT_TRACE4(( "PCF_Face_Done: done face\n" )); - - /* close gzip stream if any */ - if ( face->root.stream == &face->gzip_stream ) - { - FT_Stream_Close( &face->gzip_stream ); - face->root.stream = face->gzip_source; - } - - return PCF_Err_Ok; - } - - - FT_CALLBACK_DEF( FT_Error ) - PCF_Face_Init( FT_Stream stream, - PCF_Face face, - FT_Int face_index, - FT_Int num_params, - FT_Parameter* params ) - { - FT_Error error = PCF_Err_Ok; - - FT_UNUSED( num_params ); - FT_UNUSED( params ); - FT_UNUSED( face_index ); - - - error = pcf_load_font( stream, face ); - if ( error ) - { - FT_Error error2; - - /* this didn't work, try gzip support !! */ - error2 = FT_Stream_OpenGzip( &face->gzip_stream, stream ); - if ( error2 == FT_Err_Unimplemented_Feature ) - goto Fail; - - error = error2; - if ( error ) - goto Fail; - - face->gzip_source = stream; - face->root.stream = &face->gzip_stream; - - stream = face->root.stream; - - error = pcf_load_font( stream, face ); - if ( error ) - goto Fail; - } - - /* set-up charmap */ - { - FT_String *charset_registry, *charset_encoding; - FT_Bool unicode_charmap = 0; - - - charset_registry = face->charset_registry; - charset_encoding = face->charset_encoding; - - if ( ( charset_registry != NULL ) && - ( charset_encoding != NULL ) ) - { - if ( !ft_strcmp( face->charset_registry, "ISO10646" ) || - ( !ft_strcmp( face->charset_registry, "ISO8859" ) && - !ft_strcmp( face->charset_encoding, "1" ) ) ) - unicode_charmap = 1; - } - - { - FT_CharMapRec charmap; - - - charmap.face = FT_FACE( face ); - charmap.encoding = FT_ENCODING_NONE; - charmap.platform_id = 0; - charmap.encoding_id = 0; - - if ( unicode_charmap ) - { - charmap.encoding = FT_ENCODING_UNICODE; - charmap.platform_id = 3; - charmap.encoding_id = 1; - } - - error = FT_CMap_New( &pcf_cmap_class, NULL, &charmap, NULL ); - -#if 0 - /* Select default charmap */ - if (face->root.num_charmaps) - face->root.charmap = face->root.charmaps[0]; -#endif - } - } - - Exit: - return error; - - Fail: - FT_TRACE2(( "[not a valid PCF file]\n" )); - error = PCF_Err_Unknown_File_Format; /* error */ - goto Exit; - } - - - static FT_Error - PCF_Set_Pixel_Size( FT_Size size ) - { - PCF_Face face = (PCF_Face)FT_SIZE_FACE( size ); - - - FT_TRACE4(( "rec %d - pres %d\n", size->metrics.y_ppem, - face->root.available_sizes->height )); - - if ( size->metrics.y_ppem == face->root.available_sizes->height ) - { - size->metrics.ascender = face->accel.fontAscent << 6; - size->metrics.descender = face->accel.fontDescent * (-64); -#if 0 - size->metrics.height = face->accel.maxbounds.ascent << 6; -#endif - size->metrics.height = size->metrics.ascender - - size->metrics.descender; - - size->metrics.max_advance = face->accel.maxbounds.characterWidth << 6; - - return PCF_Err_Ok; - } - else - { - FT_TRACE4(( "size WRONG\n" )); - return PCF_Err_Invalid_Pixel_Size; - } - } - - - static FT_Error - PCF_Glyph_Load( FT_GlyphSlot slot, - FT_Size size, - FT_UInt glyph_index, - FT_Int32 load_flags ) - { - PCF_Face face = (PCF_Face)FT_SIZE_FACE( size ); - FT_Stream stream = face->root.stream; - FT_Error error = PCF_Err_Ok; - FT_Memory memory = FT_FACE( face )->memory; - FT_Bitmap* bitmap = &slot->bitmap; - PCF_Metric metric; - int bytes; - - FT_UNUSED( load_flags ); - - - FT_TRACE4(( "load_glyph %d ---", glyph_index )); - - if ( !face ) - { - error = PCF_Err_Invalid_Argument; - goto Exit; - } - - if ( glyph_index > 0 ) - glyph_index--; - - metric = face->metrics + glyph_index; - - bitmap->rows = metric->ascent + metric->descent; - bitmap->width = metric->rightSideBearing - metric->leftSideBearing; - bitmap->num_grays = 1; - bitmap->pixel_mode = FT_PIXEL_MODE_MONO; - - FT_TRACE6(( "BIT_ORDER %d ; BYTE_ORDER %d ; GLYPH_PAD %d\n", - PCF_BIT_ORDER( face->bitmapsFormat ), - PCF_BYTE_ORDER( face->bitmapsFormat ), - PCF_GLYPH_PAD( face->bitmapsFormat ) )); - - switch ( PCF_GLYPH_PAD( face->bitmapsFormat ) ) - { - case 1: - bitmap->pitch = ( bitmap->width + 7 ) >> 3; - break; - - case 2: - bitmap->pitch = ( ( bitmap->width + 15 ) >> 4 ) << 1; - break; - - case 4: - bitmap->pitch = ( ( bitmap->width + 31 ) >> 5 ) << 2; - break; - - case 8: - bitmap->pitch = ( ( bitmap->width + 63 ) >> 6 ) << 3; - break; - - default: - return PCF_Err_Invalid_File_Format; - } - - /* XXX: to do: are there cases that need repadding the bitmap? */ - bytes = bitmap->pitch * bitmap->rows; - - if ( FT_ALLOC( bitmap->buffer, bytes ) ) - goto Exit; - - if ( FT_STREAM_SEEK( metric->bits ) || - FT_STREAM_READ( bitmap->buffer, bytes ) ) - goto Exit; - - if ( PCF_BIT_ORDER( face->bitmapsFormat ) != MSBFirst ) - BitOrderInvert( bitmap->buffer, bytes ); - - if ( ( PCF_BYTE_ORDER( face->bitmapsFormat ) != - PCF_BIT_ORDER( face->bitmapsFormat ) ) ) - { - switch ( PCF_SCAN_UNIT( face->bitmapsFormat ) ) - { - case 1: - break; - - case 2: - TwoByteSwap( bitmap->buffer, bytes ); - break; - - case 4: - FourByteSwap( bitmap->buffer, bytes ); - break; - } - } - - slot->bitmap_left = metric->leftSideBearing; - slot->bitmap_top = metric->ascent; - - slot->metrics.horiAdvance = metric->characterWidth << 6 ; - slot->metrics.horiBearingX = metric->leftSideBearing << 6 ; - slot->metrics.horiBearingY = metric->ascent << 6 ; - slot->metrics.width = ( metric->rightSideBearing - - metric->leftSideBearing ) << 6; - slot->metrics.height = bitmap->rows << 6; - - slot->linearHoriAdvance = (FT_Fixed)bitmap->width << 16; - slot->format = FT_GLYPH_FORMAT_BITMAP; - slot->flags = FT_GLYPH_OWN_BITMAP; - - FT_TRACE4(( " --- ok\n" )); - - Exit: - return error; - } - - - FT_CALLBACK_TABLE_DEF - const FT_Driver_ClassRec pcf_driver_class = - { - { - ft_module_font_driver, - sizeof ( FT_DriverRec ), - - "pcf", - 0x10000L, - 0x20000L, - - 0, - - (FT_Module_Constructor)0, - (FT_Module_Destructor) 0, - (FT_Module_Requester) 0 - }, - - sizeof( PCF_FaceRec ), - sizeof( FT_SizeRec ), - sizeof( FT_GlyphSlotRec ), - - (FT_Face_InitFunc) PCF_Face_Init, - (FT_Face_DoneFunc) PCF_Face_Done, - (FT_Size_InitFunc) 0, - (FT_Size_DoneFunc) 0, - (FT_Slot_InitFunc) 0, - (FT_Slot_DoneFunc) 0, - - (FT_Size_ResetPointsFunc) PCF_Set_Pixel_Size, - (FT_Size_ResetPixelsFunc) PCF_Set_Pixel_Size, - - (FT_Slot_LoadFunc) PCF_Glyph_Load, - - (FT_Face_GetKerningFunc) 0, - (FT_Face_AttachFunc) 0, - (FT_Face_GetAdvancesFunc) 0 - }; - - -/* END */ |