diff options
Diffstat (limited to 'nx-X11/extras/freetype2/src/type1/t1gload.c')
-rw-r--r-- | nx-X11/extras/freetype2/src/type1/t1gload.c | 431 |
1 files changed, 0 insertions, 431 deletions
diff --git a/nx-X11/extras/freetype2/src/type1/t1gload.c b/nx-X11/extras/freetype2/src/type1/t1gload.c deleted file mode 100644 index f45a83b40..000000000 --- a/nx-X11/extras/freetype2/src/type1/t1gload.c +++ /dev/null @@ -1,431 +0,0 @@ -/***************************************************************************/ -/* */ -/* t1gload.c */ -/* */ -/* Type 1 Glyph Loader (body). */ -/* */ -/* Copyright 1996-2001, 2002, 2003, 2004 by */ -/* David Turner, Robert Wilhelm, and Werner Lemberg. */ -/* */ -/* This file is part of the FreeType project, and may only be used, */ -/* modified, and distributed under the terms of the FreeType project */ -/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ -/* this file you indicate that you have read the license and */ -/* understand and accept it fully. */ -/* */ -/***************************************************************************/ - - -#include <ft2build.h> -#include "t1gload.h" -#include FT_INTERNAL_DEBUG_H -#include FT_INTERNAL_STREAM_H -#include FT_OUTLINE_H -#include FT_INTERNAL_POSTSCRIPT_AUX_H - -#include "t1errors.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_t1gload - - - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /********** *********/ - /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/ - /********** *********/ - /********** The following code is in charge of computing *********/ - /********** the maximum advance width of the font. It *********/ - /********** quickly processes each glyph charstring to *********/ - /********** extract the value from either a `sbw' or `seac' *********/ - /********** operator. *********/ - /********** *********/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - - FT_LOCAL_DEF( FT_Error ) - T1_Parse_Glyph_And_Get_Char_String( T1_Decoder decoder, - FT_UInt glyph_index, - FT_Data* char_string ) - { - T1_Face face = (T1_Face)decoder->builder.face; - T1_Font type1 = &face->type1; - FT_Error error = T1_Err_Ok; - - - decoder->font_matrix = type1->font_matrix; - decoder->font_offset = type1->font_offset; - -#ifdef FT_CONFIG_OPTION_INCREMENTAL - - /* For incremental fonts get the character data using the */ - /* callback function. */ - if ( face->root.internal->incremental_interface ) - error = face->root.internal->incremental_interface->funcs->get_glyph_data( - face->root.internal->incremental_interface->object, - glyph_index, char_string ); - else - -#endif /* FT_CONFIG_OPTION_INCREMENTAL */ - - /* For ordinary fonts get the character data stored in the face record. */ - { - char_string->pointer = type1->charstrings[glyph_index]; - char_string->length = (FT_Int)type1->charstrings_len[glyph_index]; - } - - if ( !error ) - error = decoder->funcs.parse_charstrings( - decoder, (FT_Byte*)char_string->pointer, - char_string->length ); - -#ifdef FT_CONFIG_OPTION_INCREMENTAL - - /* Incremental fonts can optionally override the metrics. */ - if ( !error && face->root.internal->incremental_interface && - face->root.internal->incremental_interface->funcs->get_glyph_metrics ) - { - FT_Incremental_MetricsRec metrics; - - - metrics.bearing_x = decoder->builder.left_bearing.x; - metrics.bearing_y = decoder->builder.left_bearing.y; - metrics.advance = decoder->builder.advance.x; - error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( - face->root.internal->incremental_interface->object, - glyph_index, FALSE, &metrics ); - decoder->builder.left_bearing.x = metrics.bearing_x; - decoder->builder.left_bearing.y = metrics.bearing_y; - decoder->builder.advance.x = metrics.advance; - decoder->builder.advance.y = 0; - } - -#endif /* FT_CONFIG_OPTION_INCREMENTAL */ - - return error; - } - - - FT_CALLBACK_DEF( FT_Error ) - T1_Parse_Glyph( T1_Decoder decoder, - FT_UInt glyph_index ) - { - FT_Data glyph_data; - FT_Error error = T1_Parse_Glyph_And_Get_Char_String( - decoder, glyph_index, &glyph_data ); - - -#ifdef FT_CONFIG_OPTION_INCREMENTAL - - if ( !error ) - { - T1_Face face = (T1_Face)decoder->builder.face; - - - if ( face->root.internal->incremental_interface ) - face->root.internal->incremental_interface->funcs->free_glyph_data( - face->root.internal->incremental_interface->object, - &glyph_data ); - } - -#endif /* FT_CONFIG_OPTION_INCREMENTAL */ - - return error; - } - - - FT_LOCAL_DEF( FT_Error ) - T1_Compute_Max_Advance( T1_Face face, - FT_Pos* max_advance ) - { - FT_Error error; - T1_DecoderRec decoder; - FT_Int glyph_index; - T1_Font type1 = &face->type1; - PSAux_Service psaux = (PSAux_Service)face->psaux; - - - *max_advance = 0; - - /* initialize load decoder */ - error = psaux->t1_decoder_funcs->init( &decoder, - (FT_Face)face, - 0, /* size */ - 0, /* glyph slot */ - (FT_Byte**)type1->glyph_names, - face->blend, - 0, - FT_RENDER_MODE_NORMAL, - T1_Parse_Glyph ); - if ( error ) - return error; - - decoder.builder.metrics_only = 1; - decoder.builder.load_points = 0; - - decoder.num_subrs = type1->num_subrs; - decoder.subrs = type1->subrs; - decoder.subrs_len = type1->subrs_len; - - *max_advance = 0; - - /* for each glyph, parse the glyph charstring and extract */ - /* the advance width */ - for ( glyph_index = 0; glyph_index < type1->num_glyphs; glyph_index++ ) - { - /* now get load the unscaled outline */ - error = T1_Parse_Glyph( &decoder, glyph_index ); - if ( glyph_index == 0 || decoder.builder.advance.x > *max_advance ) - *max_advance = decoder.builder.advance.x; - - /* ignore the error if one occurred - skip to next glyph */ - } - - return T1_Err_Ok; - } - - - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /********** *********/ - /********** UNHINTED GLYPH LOADER *********/ - /********** *********/ - /********** The following code is in charge of loading a *********/ - /********** single outline. It completely ignores hinting *********/ - /********** and is used when FT_LOAD_NO_HINTING is set. *********/ - /********** *********/ - /********** The Type 1 hinter is located in `t1hint.c' *********/ - /********** *********/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - - FT_LOCAL_DEF( FT_Error ) - T1_Load_Glyph( T1_GlyphSlot glyph, - T1_Size size, - FT_UInt glyph_index, - FT_Int32 load_flags ) - { - FT_Error error; - T1_DecoderRec decoder; - T1_Face face = (T1_Face)glyph->root.face; - FT_Bool hinting; - T1_Font type1 = &face->type1; - PSAux_Service psaux = (PSAux_Service)face->psaux; - const T1_Decoder_Funcs decoder_funcs = psaux->t1_decoder_funcs; - - FT_Matrix font_matrix; - FT_Vector font_offset; - FT_Data glyph_data; -#ifdef FT_CONFIG_OPTION_INCREMENTAL - FT_Bool glyph_data_loaded = 0; -#endif - - - if ( load_flags & FT_LOAD_NO_RECURSE ) - load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; - - glyph->x_scale = size->root.metrics.x_scale; - glyph->y_scale = size->root.metrics.y_scale; - - glyph->root.outline.n_points = 0; - glyph->root.outline.n_contours = 0; - - hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE ) == 0 && - ( load_flags & FT_LOAD_NO_HINTING ) == 0 ); - - glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; - - error = decoder_funcs->init( &decoder, - (FT_Face)face, - (FT_Size)size, - (FT_GlyphSlot)glyph, - (FT_Byte**)type1->glyph_names, - face->blend, - FT_BOOL( hinting ), - FT_LOAD_TARGET_MODE( load_flags ), - T1_Parse_Glyph ); - if ( error ) - goto Exit; - - decoder.builder.no_recurse = FT_BOOL( - ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ); - - decoder.num_subrs = type1->num_subrs; - decoder.subrs = type1->subrs; - decoder.subrs_len = type1->subrs_len; - - /* now load the unscaled outline */ - error = T1_Parse_Glyph_And_Get_Char_String( &decoder, glyph_index, - &glyph_data ); - if ( error ) - goto Exit; -#ifdef FT_CONFIG_OPTION_INCREMENTAL - glyph_data_loaded = 1; -#endif - - font_matrix = decoder.font_matrix; - font_offset = decoder.font_offset; - - /* save new glyph tables */ - decoder_funcs->done( &decoder ); - - /* now, set the metrics -- this is rather simple, as */ - /* the left side bearing is the xMin, and the top side */ - /* bearing the yMax */ - if ( !error ) - { - glyph->root.outline.flags &= FT_OUTLINE_OWNER; - glyph->root.outline.flags |= FT_OUTLINE_REVERSE_FILL; - - /* for composite glyphs, return only left side bearing and */ - /* advance width */ - if ( load_flags & FT_LOAD_NO_RECURSE ) - { - FT_Slot_Internal internal = glyph->root.internal; - - - glyph->root.metrics.horiBearingX = decoder.builder.left_bearing.x; - glyph->root.metrics.horiAdvance = decoder.builder.advance.x; - internal->glyph_matrix = font_matrix; - internal->glyph_delta = font_offset; - internal->glyph_transformed = 1; - } - else - { - FT_BBox cbox; - FT_Glyph_Metrics* metrics = &glyph->root.metrics; - FT_Vector advance; - - - /* copy the _unscaled_ advance width */ - metrics->horiAdvance = decoder.builder.advance.x; - glyph->root.linearHoriAdvance = decoder.builder.advance.x; - glyph->root.internal->glyph_transformed = 0; - - /* make up vertical metrics */ - metrics->vertBearingX = 0; - metrics->vertBearingY = 0; - metrics->vertAdvance = 0; - - glyph->root.linearVertAdvance = 0; - - glyph->root.format = FT_GLYPH_FORMAT_OUTLINE; - - if ( size && size->root.metrics.y_ppem < 24 ) - glyph->root.outline.flags |= FT_OUTLINE_HIGH_PRECISION; - -#if 1 - /* apply the font matrix, if any */ - FT_Outline_Transform( &glyph->root.outline, &font_matrix ); - - FT_Outline_Translate( &glyph->root.outline, - font_offset.x, - font_offset.y ); - - advance.x = metrics->horiAdvance; - advance.y = 0; - FT_Vector_Transform( &advance, &font_matrix ); - metrics->horiAdvance = advance.x + font_offset.x; - advance.x = 0; - advance.y = metrics->vertAdvance; - FT_Vector_Transform( &advance, &font_matrix ); - metrics->vertAdvance = advance.y + font_offset.y; -#endif - - if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ) - { - /* scale the outline and the metrics */ - FT_Int n; - FT_Outline* cur = decoder.builder.base; - FT_Vector* vec = cur->points; - FT_Fixed x_scale = glyph->x_scale; - FT_Fixed y_scale = glyph->y_scale; - - - /* First of all, scale the points, if we are not hinting */ - if ( !hinting ) - for ( n = cur->n_points; n > 0; n--, vec++ ) - { - vec->x = FT_MulFix( vec->x, x_scale ); - vec->y = FT_MulFix( vec->y, y_scale ); - } - - FT_Outline_Get_CBox( &glyph->root.outline, &cbox ); - - /* Then scale the metrics */ - metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale ); - metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale ); - - metrics->vertBearingX = FT_MulFix( metrics->vertBearingX, x_scale ); - metrics->vertBearingY = FT_MulFix( metrics->vertBearingY, y_scale ); - - if ( hinting ) - { - metrics->horiAdvance = FT_PIX_ROUND( metrics->horiAdvance ); - metrics->vertAdvance = FT_PIX_ROUND( metrics->vertAdvance ); - - metrics->vertBearingX = FT_PIX_ROUND( metrics->vertBearingX ); - metrics->vertBearingY = FT_PIX_ROUND( metrics->vertBearingY ); - } - } - - /* compute the other metrics */ - FT_Outline_Get_CBox( &glyph->root.outline, &cbox ); - - /* grid fit the bounding box if necessary */ - if ( hinting ) - { - cbox.xMin = FT_PIX_FLOOR( cbox.xMin ); - cbox.yMin = FT_PIX_FLOOR( cbox.yMin ); - cbox.xMax = FT_PIX_CEIL( cbox.xMax ); - cbox.yMax = FT_PIX_CEIL( cbox.yMax ); - } - - metrics->width = cbox.xMax - cbox.xMin; - metrics->height = cbox.yMax - cbox.yMin; - - metrics->horiBearingX = cbox.xMin; - metrics->horiBearingY = cbox.yMax; - } - - /* Set control data to the glyph charstrings. Note that this is */ - /* _not_ zero-terminated. */ - glyph->root.control_data = (FT_Byte*)glyph_data.pointer; - glyph->root.control_len = glyph_data.length; - } - - - Exit: - -#ifdef FT_CONFIG_OPTION_INCREMENTAL - if ( glyph_data_loaded && face->root.internal->incremental_interface ) - { - face->root.internal->incremental_interface->funcs->free_glyph_data( - face->root.internal->incremental_interface->object, - &glyph_data ); - - /* Set the control data to null - it is no longer available if */ - /* loaded incrementally. */ - glyph->root.control_data = 0; - glyph->root.control_len = 0; - } -#endif - - return error; - } - - -/* END */ |