diff options
Diffstat (limited to 'src/pcf/pcfdrivr.c')
| -rw-r--r-- | src/pcf/pcfdrivr.c | 668 |
1 files changed, 0 insertions, 668 deletions
diff --git a/src/pcf/pcfdrivr.c b/src/pcf/pcfdrivr.c deleted file mode 100644 index c0f0e49..0000000 --- a/src/pcf/pcfdrivr.c +++ /dev/null @@ -1,668 +0,0 @@ -/* pcfdrivr.c - - FreeType font driver for pcf files - - Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006 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_LZW_H -#include FT_ERRORS_H -#include FT_BDF_H - -#include "pcf.h" -#include "pcfdrivr.h" -#include "pcfread.h" - -#include "pcferror.h" -#include "pcfutil.h" - -#undef FT_COMPONENT -#define FT_COMPONENT trace_pcfread - -#include FT_SERVICE_BDF_H -#include FT_SERVICE_XFREE86_NAME_H - - - /*************************************************************************/ - /* */ - /* 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 - - - typedef struct PCF_CMapRec_ - { - FT_CMapRec root; - FT_UInt num_encodings; - PCF_Encoding encodings; - - } PCF_CMapRec, *PCF_CMap; - - - FT_CALLBACK_DEF( FT_Error ) - pcf_cmap_init( FT_CMap pcfcmap, /* PCF_CMap */ - FT_Pointer init_data ) - { - PCF_CMap cmap = (PCF_CMap)pcfcmap; - PCF_Face face = (PCF_Face)FT_CMAP_FACE( pcfcmap ); - - FT_UNUSED( init_data ); - - - cmap->num_encodings = (FT_UInt)face->nencodings; - cmap->encodings = face->encodings; - - return PCF_Err_Ok; - } - - - FT_CALLBACK_DEF( void ) - pcf_cmap_done( FT_CMap pcfcmap ) /* PCF_CMap */ - { - PCF_CMap cmap = (PCF_CMap)pcfcmap; - - - cmap->encodings = NULL; - cmap->num_encodings = 0; - } - - - FT_CALLBACK_DEF( FT_UInt ) - pcf_cmap_char_index( FT_CMap pcfcmap, /* PCF_CMap */ - FT_UInt32 charcode ) - { - PCF_CMap cmap = (PCF_CMap)pcfcmap; - 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( FT_CMap pcfcmap, /* PCF_CMap */ - FT_UInt32 *acharcode ) - { - PCF_CMap cmap = (PCF_CMap)pcfcmap; - 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 ), - pcf_cmap_init, - pcf_cmap_done, - pcf_cmap_char_index, - pcf_cmap_char_next - }; - - - FT_CALLBACK_DEF( void ) - PCF_Face_Done( FT_Face pcfface ) /* PCF_Face */ - { - PCF_Face face = (PCF_Face)pcfface; - FT_Memory memory = FT_FACE_MEMORY( face ); - - - FT_FREE( face->encodings ); - FT_FREE( face->metrics ); - - /* free properties */ - { - PCF_Property prop; - FT_Int i; - - - if ( face->properties ) - { - for ( i = 0; i < face->nprops; i++ ) - { - prop = &face->properties[i]; - - if ( prop ) { - FT_FREE( prop->name ); - if ( prop->isString ) - FT_FREE( prop->value.atom ); - } - } - } - FT_FREE( face->properties ); - } - - FT_FREE( face->toc.tables ); - FT_FREE( pcfface->family_name ); - FT_FREE( pcfface->style_name ); - FT_FREE( pcfface->available_sizes ); - FT_FREE( face->charset_encoding ); - FT_FREE( face->charset_registry ); - - FT_TRACE4(( "PCF_Face_Done: done face\n" )); - - /* close gzip/LZW stream if any */ - if ( pcfface->stream == &face->gzip_stream ) - { - FT_Stream_Close( &face->gzip_stream ); - pcfface->stream = face->gzip_source; - } - } - - - FT_CALLBACK_DEF( FT_Error ) - PCF_Face_Init( FT_Stream stream, - FT_Face pcfface, /* PCF_Face */ - FT_Int face_index, - FT_Int num_params, - FT_Parameter* params ) - { - PCF_Face face = (PCF_Face)pcfface; - 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; - - - PCF_Face_Done( pcfface ); - - /* this didn't work, try gzip support! */ - error2 = FT_Stream_OpenGzip( &face->gzip_stream, stream ); - if ( FT_ERROR_BASE( error2 ) == FT_Err_Unimplemented_Feature ) - goto Fail; - - error = error2; - if ( error ) - { - FT_Error error3; - - - /* this didn't work, try LZW support! */ - error3 = FT_Stream_OpenLZW( &face->gzip_stream, stream ); - if ( FT_ERROR_BASE( error3 ) == FT_Err_Unimplemented_Feature ) - goto Fail; - - error = error3; - if ( error ) - goto Fail; - - face->gzip_source = stream; - pcfface->stream = &face->gzip_stream; - - stream = pcfface->stream; - - error = pcf_load_font( stream, face ); - if ( error ) - goto Fail; - } - else - { - face->gzip_source = stream; - pcfface->stream = &face->gzip_stream; - - stream = pcfface->stream; - - error = pcf_load_font( stream, face ); - if ( error ) - goto Fail; - } - } - - /* set up charmap */ - { - FT_String *charset_registry = face->charset_registry; - FT_String *charset_encoding = face->charset_encoding; - FT_Bool unicode_charmap = 0; - - - if ( charset_registry && charset_encoding ) - { - char* s = charset_registry; - - - /* Uh, oh, compare first letters manually to avoid dependency - on locales. */ - if ( ( s[0] == 'i' || s[0] == 'I' ) && - ( s[1] == 's' || s[1] == 'S' ) && - ( s[2] == 'o' || s[2] == 'O' ) ) - { - s += 3; - if ( !ft_strcmp( s, "10646" ) || - ( !ft_strcmp( s, "8859" ) && - !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 ( pcfface->num_charmaps ) - pcfface->charmap = pcfface->charmaps[0]; -#endif - } - } - - Exit: - return error; - - Fail: - FT_TRACE2(( "[not a valid PCF file]\n" )); - PCF_Face_Done( pcfface ); - error = PCF_Err_Unknown_File_Format; /* error */ - goto Exit; - } - - - FT_CALLBACK_DEF( FT_Error ) - PCF_Size_Select( FT_Size size, - FT_ULong strike_index ) - { - PCF_Accel accel = &( (PCF_Face)size->face )->accel; - - - FT_Select_Metrics( size->face, strike_index ); - - size->metrics.ascender = accel->fontAscent << 6; - size->metrics.descender = -accel->fontDescent << 6; - size->metrics.max_advance = accel->maxbounds.characterWidth << 6; - - return PCF_Err_Ok; - } - - - FT_CALLBACK_DEF( FT_Error ) - PCF_Size_Request( FT_Size size, - FT_Size_Request req ) - { - PCF_Face face = (PCF_Face)size->face; - FT_Bitmap_Size* bsize = size->face->available_sizes; - FT_Error error = PCF_Err_Invalid_Pixel_Size; - FT_Long height; - - - height = FT_REQUEST_HEIGHT( req ); - height = ( height + 32 ) >> 6; - - switch ( req->type ) - { - case FT_SIZE_REQUEST_TYPE_NOMINAL: - if ( height == ( bsize->y_ppem + 32 ) >> 6 ) - error = PCF_Err_Ok; - break; - - case FT_SIZE_REQUEST_TYPE_REAL_DIM: - if ( height == ( face->accel.fontAscent + - face->accel.fontDescent ) ) - error = PCF_Err_Ok; - break; - - default: - error = PCF_Err_Unimplemented_Feature; - break; - } - - if ( error ) - return error; - else - return PCF_Size_Select( size, 0 ); - } - - - FT_CALLBACK_DEF( 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_Bitmap* bitmap = &slot->bitmap; - PCF_Metric metric; - int bytes; - - FT_UNUSED( load_flags ); - - - FT_TRACE4(( "load_glyph %d ---", glyph_index )); - - if ( !face || glyph_index >= (FT_UInt)face->root.num_glyphs ) - { - 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; - - error = ft_glyphslot_alloc_bitmap( slot, bytes ); - if ( error ) - 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->format = FT_GLYPH_FORMAT_BITMAP; - 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; - - ft_synthesize_vertical_metrics( &slot->metrics, - ( face->accel.fontAscent + - face->accel.fontDescent ) << 6 ); - - FT_TRACE4(( " --- ok\n" )); - - Exit: - return error; - } - - - /* - * - * BDF SERVICE - * - */ - - static FT_Error - pcf_get_bdf_property( PCF_Face face, - const char* prop_name, - BDF_PropertyRec *aproperty ) - { - PCF_Property prop; - - - prop = pcf_find_property( face, prop_name ); - if ( prop != NULL ) - { - if ( prop->isString ) - { - aproperty->type = BDF_PROPERTY_TYPE_ATOM; - aproperty->u.atom = prop->value.atom; - } - else - { - /* Apparently, the PCF driver loads all properties as signed integers! - * This really doesn't seem to be a problem, because this is - * sufficient for any meaningful values. - */ - aproperty->type = BDF_PROPERTY_TYPE_INTEGER; - aproperty->u.integer = prop->value.integer; - } - return 0; - } - - return PCF_Err_Invalid_Argument; - } - - - static FT_Error - pcf_get_charset_id( PCF_Face face, - const char* *acharset_encoding, - const char* *acharset_registry ) - { - *acharset_encoding = face->charset_encoding; - *acharset_registry = face->charset_registry; - - return 0; - } - - - static const FT_Service_BDFRec pcf_service_bdf = - { - (FT_BDF_GetCharsetIdFunc)pcf_get_charset_id, - (FT_BDF_GetPropertyFunc) pcf_get_bdf_property - }; - - - /* - * - * SERVICE LIST - * - */ - - static const FT_ServiceDescRec pcf_services[] = - { - { FT_SERVICE_ID_BDF, &pcf_service_bdf }, - { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_PCF }, - { NULL, NULL } - }; - - - FT_CALLBACK_DEF( FT_Module_Interface ) - pcf_driver_requester( FT_Module module, - const char* name ) - { - FT_UNUSED( module ); - - return ft_service_list_lookup( pcf_services, name ); - } - - - FT_CALLBACK_TABLE_DEF - const FT_Driver_ClassRec pcf_driver_class = - { - { - FT_MODULE_FONT_DRIVER | - FT_MODULE_DRIVER_NO_OUTLINES, - sizeof ( FT_DriverRec ), - - "pcf", - 0x10000L, - 0x20000L, - - 0, - - 0, - 0, - pcf_driver_requester - }, - - sizeof ( PCF_FaceRec ), - sizeof ( FT_SizeRec ), - sizeof ( FT_GlyphSlotRec ), - - PCF_Face_Init, - PCF_Face_Done, - 0, /* FT_Size_InitFunc */ - 0, /* FT_Size_DoneFunc */ - 0, /* FT_Slot_InitFunc */ - 0, /* FT_Slot_DoneFunc */ - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - ft_stub_set_char_sizes, - ft_stub_set_pixel_sizes, -#endif - PCF_Glyph_Load, - - 0, /* FT_Face_GetKerningFunc */ - 0, /* FT_Face_AttachFunc */ - 0, /* FT_Face_GetAdvancesFunc */ - - PCF_Size_Request, - PCF_Size_Select - }; - - -/* END */ |