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-rw-r--r--libfreetype/cidobjs.c448
1 files changed, 448 insertions, 0 deletions
diff --git a/libfreetype/cidobjs.c b/libfreetype/cidobjs.c
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+/***************************************************************************/
+/* */
+/* cidobjs.c */
+/* */
+/* CID objects manager (body). */
+/* */
+/* Copyright 1996-2001, 2002 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 FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include "cidgload.h"
+#include "cidload.h"
+#include FT_INTERNAL_POSTSCRIPT_NAMES_H
+#include FT_INTERNAL_POSTSCRIPT_AUX_H
+#include FT_INTERNAL_POSTSCRIPT_HINTS_H
+
+#include "ciderrs.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_cidobjs
+
+
+ /*************************************************************************/
+ /* */
+ /* SLOT FUNCTIONS */
+ /* */
+ /*************************************************************************/
+
+ FT_LOCAL_DEF( void )
+ cid_slot_done( CID_GlyphSlot slot )
+ {
+ slot->root.internal->glyph_hints = 0;
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ cid_slot_init( CID_GlyphSlot slot )
+ {
+ CID_Face face;
+ PSHinter_Service pshinter;
+
+
+ face = (CID_Face)slot->root.face;
+ pshinter = (PSHinter_Service)face->pshinter;
+
+ if ( pshinter )
+ {
+ FT_Module module;
+
+
+ module = FT_Get_Module( slot->root.face->driver->root.library,
+ "pshinter" );
+ if ( module )
+ {
+ T1_Hints_Funcs funcs;
+
+
+ funcs = pshinter->get_t1_funcs( module );
+ slot->root.internal->glyph_hints = (void*)funcs;
+ }
+ }
+
+ return 0;
+ }
+
+
+ /*************************************************************************/
+ /* */
+ /* SIZE FUNCTIONS */
+ /* */
+ /*************************************************************************/
+
+
+ static PSH_Globals_Funcs
+ cid_size_get_globals_funcs( CID_Size size )
+ {
+ CID_Face face = (CID_Face)size->root.face;
+ PSHinter_Service pshinter = (PSHinter_Service)face->pshinter;
+ FT_Module module;
+
+
+ module = FT_Get_Module( size->root.face->driver->root.library,
+ "pshinter" );
+ return ( module && pshinter && pshinter->get_globals_funcs )
+ ? pshinter->get_globals_funcs( module )
+ : 0;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cid_size_done( CID_Size size )
+ {
+ if ( size->root.internal )
+ {
+ PSH_Globals_Funcs funcs;
+
+
+ funcs = cid_size_get_globals_funcs( size );
+ if ( funcs )
+ funcs->destroy( (PSH_Globals)size->root.internal );
+
+ size->root.internal = 0;
+ }
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ cid_size_init( CID_Size size )
+ {
+ FT_Error error = 0;
+ PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size );
+
+
+ if ( funcs )
+ {
+ PSH_Globals globals;
+ CID_Face face = (CID_Face)size->root.face;
+ CID_FaceDict dict = face->cid.font_dicts + face->root.face_index;
+ PS_Private priv = &dict->private_dict;
+
+
+ error = funcs->create( size->root.face->memory, priv, &globals );
+ if ( !error )
+ size->root.internal = (FT_Size_Internal)(void*)globals;
+ }
+
+ return error;
+ }
+
+
+ FT_LOCAL_DEF( FT_Error )
+ cid_size_reset( CID_Size size )
+ {
+ PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size );
+ FT_Error error = 0;
+
+
+ if ( funcs )
+ error = funcs->set_scale( (PSH_Globals)size->root.internal,
+ size->root.metrics.x_scale,
+ size->root.metrics.y_scale,
+ 0, 0 );
+ return error;
+ }
+
+
+ /*************************************************************************/
+ /* */
+ /* FACE FUNCTIONS */
+ /* */
+ /*************************************************************************/
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* cid_face_done */
+ /* */
+ /* <Description> */
+ /* Finalizes a given face object. */
+ /* */
+ /* <Input> */
+ /* face :: A pointer to the face object to destroy. */
+ /* */
+ FT_LOCAL_DEF( void )
+ cid_face_done( CID_Face face )
+ {
+ FT_Memory memory;
+
+
+ if ( face )
+ {
+ CID_FaceInfo cid = &face->cid;
+ PS_FontInfo info = &cid->font_info;
+
+
+ memory = face->root.memory;
+
+ /* release subrs */
+ if ( face->subrs )
+ {
+ FT_Int n;
+
+
+ for ( n = 0; n < cid->num_dicts; n++ )
+ {
+ CID_Subrs subr = face->subrs + n;
+
+
+ if ( subr->code )
+ {
+ FT_FREE( subr->code[0] );
+ FT_FREE( subr->code );
+ }
+ }
+
+ FT_FREE( face->subrs );
+ }
+
+ /* release FontInfo strings */
+ FT_FREE( info->version );
+ FT_FREE( info->notice );
+ FT_FREE( info->full_name );
+ FT_FREE( info->family_name );
+ FT_FREE( info->weight );
+
+ /* release font dictionaries */
+ FT_FREE( cid->font_dicts );
+ cid->num_dicts = 0;
+
+ /* release other strings */
+ FT_FREE( cid->cid_font_name );
+ FT_FREE( cid->registry );
+ FT_FREE( cid->ordering );
+
+ face->root.family_name = 0;
+ face->root.style_name = 0;
+ }
+ }
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* cid_face_init */
+ /* */
+ /* <Description> */
+ /* Initializes a given CID face object. */
+ /* */
+ /* <Input> */
+ /* stream :: The source font stream. */
+ /* */
+ /* face_index :: The index of the font face in the resource. */
+ /* */
+ /* num_params :: Number of additional generic parameters. Ignored. */
+ /* */
+ /* params :: Additional generic parameters. Ignored. */
+ /* */
+ /* <InOut> */
+ /* face :: The newly built face object. */
+ /* */
+ /* <Return> */
+ /* FreeType error code. 0 means success. */
+ /* */
+ FT_LOCAL_DEF( FT_Error )
+ cid_face_init( FT_Stream stream,
+ CID_Face face,
+ FT_Int face_index,
+ FT_Int num_params,
+ FT_Parameter* params )
+ {
+ FT_Error error;
+ PSNames_Service psnames;
+ PSAux_Service psaux;
+ PSHinter_Service pshinter;
+
+ FT_UNUSED( num_params );
+ FT_UNUSED( params );
+ FT_UNUSED( face_index );
+ FT_UNUSED( stream );
+
+
+ face->root.num_faces = 1;
+
+ psnames = (PSNames_Service)face->psnames;
+ if ( !psnames )
+ {
+ psnames = (PSNames_Service)FT_Get_Module_Interface(
+ FT_FACE_LIBRARY( face ), "psnames" );
+
+ face->psnames = psnames;
+ }
+
+ psaux = (PSAux_Service)face->psaux;
+ if ( !psaux )
+ {
+ psaux = (PSAux_Service)FT_Get_Module_Interface(
+ FT_FACE_LIBRARY( face ), "psaux" );
+
+ face->psaux = psaux;
+ }
+
+ pshinter = (PSHinter_Service)face->pshinter;
+ if ( !pshinter )
+ {
+ pshinter = (PSHinter_Service)FT_Get_Module_Interface(
+ FT_FACE_LIBRARY( face ), "pshinter" );
+
+ face->pshinter = pshinter;
+ }
+
+ /* open the tokenizer; this will also check the font format */
+ if ( FT_STREAM_SEEK( 0 ) )
+ goto Exit;
+
+ error = cid_face_open( face );
+ if ( error )
+ goto Exit;
+
+ /* if we just wanted to check the format, leave successfully now */
+ if ( face_index < 0 )
+ goto Exit;
+
+ /* check the face index */
+ if ( face_index != 0 )
+ {
+ FT_ERROR(( "cid_face_init: invalid face index\n" ));
+ error = CID_Err_Invalid_Argument;
+ goto Exit;
+ }
+
+ /* Now, load the font program into the face object */
+ {
+ /* Init the face object fields */
+ /* Now set up root face fields */
+ {
+ FT_Face root = (FT_Face)&face->root;
+
+
+ root->num_glyphs = face->cid.cid_count;
+ root->num_charmaps = 0;
+
+ root->face_index = face_index;
+ root->face_flags = FT_FACE_FLAG_SCALABLE;
+
+ root->face_flags |= FT_FACE_FLAG_HORIZONTAL;
+
+ if ( face->cid.font_info.is_fixed_pitch )
+ root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
+
+ /* XXX: TODO: add kerning with .afm support */
+
+ /* get style name -- be careful, some broken fonts only */
+ /* have a /FontName dictionary entry! */
+ root->family_name = face->cid.font_info.family_name;
+ if ( root->family_name )
+ {
+ char* full = face->cid.font_info.full_name;
+ char* family = root->family_name;
+
+ while ( *family && *full == *family )
+ {
+ family++;
+ full++;
+ }
+
+ root->style_name = ( *full == ' ' ) ? full + 1
+ : (char *)"Regular";
+ }
+ else
+ {
+ /* do we have a `/FontName'? */
+ if ( face->cid.cid_font_name )
+ {
+ root->family_name = face->cid.cid_font_name;
+ root->style_name = (char *)"Regular";
+ }
+ }
+
+ /* no embedded bitmap support */
+ root->num_fixed_sizes = 0;
+ root->available_sizes = 0;
+
+ root->bbox.xMin = face->cid.font_bbox.xMin >> 16;
+ root->bbox.yMin = face->cid.font_bbox.yMin >> 16;
+ root->bbox.xMax = ( face->cid.font_bbox.xMax + 0xFFFFU ) >> 16;
+ root->bbox.yMax = ( face->cid.font_bbox.yMax + 0xFFFFU ) >> 16;
+
+ if ( !root->units_per_EM )
+ root->units_per_EM = 1000;
+
+ root->ascender = (FT_Short)( root->bbox.yMax );
+ root->descender = (FT_Short)( root->bbox.yMin );
+ root->height = (FT_Short)(
+ ( ( root->ascender + root->descender ) * 12 ) / 10 );
+
+ root->underline_position = face->cid.font_info.underline_position;
+ root->underline_thickness = face->cid.font_info.underline_thickness;
+
+ root->internal->max_points = 0;
+ root->internal->max_contours = 0;
+ }
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* cid_driver_init */
+ /* */
+ /* <Description> */
+ /* Initializes a given CID driver object. */
+ /* */
+ /* <Input> */
+ /* driver :: A handle to the target driver object. */
+ /* */
+ /* <Return> */
+ /* FreeType error code. 0 means success. */
+ /* */
+ FT_LOCAL_DEF( FT_Error )
+ cid_driver_init( CID_Driver driver )
+ {
+ FT_UNUSED( driver );
+
+ return CID_Err_Ok;
+ }
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* cid_driver_done */
+ /* */
+ /* <Description> */
+ /* Finalizes a given CID driver. */
+ /* */
+ /* <Input> */
+ /* driver :: A handle to the target CID driver. */
+ /* */
+ FT_LOCAL_DEF( void )
+ cid_driver_done( CID_Driver driver )
+ {
+ FT_UNUSED( driver );
+ }
+
+
+/* END */
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