| /**************************************************************************** |
| * |
| * ftcimage.c |
| * |
| * FreeType Image cache (body). |
| * |
| * Copyright (C) 2000-2021 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 <freetype/ftcache.h> |
| #include "ftcimage.h" |
| #include <freetype/internal/ftmemory.h> |
| #include <freetype/internal/ftobjs.h> |
| |
| #include "ftccback.h" |
| #include "ftcerror.h" |
| |
| |
| /* finalize a given glyph image node */ |
| FT_LOCAL_DEF( void ) |
| ftc_inode_free( FTC_Node ftcinode, |
| FTC_Cache cache ) |
| { |
| FTC_INode inode = (FTC_INode)ftcinode; |
| FT_Memory memory = cache->memory; |
| |
| |
| if ( inode->glyph ) |
| { |
| FT_Done_Glyph( inode->glyph ); |
| inode->glyph = NULL; |
| } |
| |
| FTC_GNode_Done( FTC_GNODE( inode ), cache ); |
| FT_FREE( inode ); |
| } |
| |
| |
| FT_LOCAL_DEF( void ) |
| FTC_INode_Free( FTC_INode inode, |
| FTC_Cache cache ) |
| { |
| ftc_inode_free( FTC_NODE( inode ), cache ); |
| } |
| |
| |
| /* initialize a new glyph image node */ |
| FT_LOCAL_DEF( FT_Error ) |
| FTC_INode_New( FTC_INode *pinode, |
| FTC_GQuery gquery, |
| FTC_Cache cache ) |
| { |
| FT_Memory memory = cache->memory; |
| FT_Error error; |
| FTC_INode inode = NULL; |
| |
| |
| if ( !FT_NEW( inode ) ) |
| { |
| FTC_GNode gnode = FTC_GNODE( inode ); |
| FTC_Family family = gquery->family; |
| FT_UInt gindex = gquery->gindex; |
| FTC_IFamilyClass clazz = FTC_CACHE_IFAMILY_CLASS( cache ); |
| |
| |
| /* initialize its inner fields */ |
| FTC_GNode_Init( gnode, gindex, family ); |
| |
| /* we will now load the glyph image */ |
| error = clazz->family_load_glyph( family, gindex, cache, |
| &inode->glyph ); |
| if ( error ) |
| { |
| FTC_INode_Free( inode, cache ); |
| inode = NULL; |
| } |
| } |
| |
| *pinode = inode; |
| return error; |
| } |
| |
| |
| FT_LOCAL_DEF( FT_Error ) |
| ftc_inode_new( FTC_Node *ftcpinode, |
| FT_Pointer ftcgquery, |
| FTC_Cache cache ) |
| { |
| FTC_INode *pinode = (FTC_INode*)ftcpinode; |
| FTC_GQuery gquery = (FTC_GQuery)ftcgquery; |
| |
| |
| return FTC_INode_New( pinode, gquery, cache ); |
| } |
| |
| |
| FT_LOCAL_DEF( FT_Offset ) |
| ftc_inode_weight( FTC_Node ftcinode, |
| FTC_Cache ftccache ) |
| { |
| FTC_INode inode = (FTC_INode)ftcinode; |
| FT_Offset size = 0; |
| FT_Glyph glyph = inode->glyph; |
| |
| FT_UNUSED( ftccache ); |
| |
| |
| switch ( glyph->format ) |
| { |
| case FT_GLYPH_FORMAT_BITMAP: |
| { |
| FT_BitmapGlyph bitg; |
| |
| |
| bitg = (FT_BitmapGlyph)glyph; |
| size = bitg->bitmap.rows * (FT_Offset)FT_ABS( bitg->bitmap.pitch ) + |
| sizeof ( *bitg ); |
| } |
| break; |
| |
| case FT_GLYPH_FORMAT_OUTLINE: |
| { |
| FT_OutlineGlyph outg; |
| |
| |
| outg = (FT_OutlineGlyph)glyph; |
| size = (FT_Offset)outg->outline.n_points * |
| ( sizeof ( FT_Vector ) + sizeof ( FT_Byte ) ) + |
| (FT_Offset)outg->outline.n_contours * sizeof ( FT_Short ) + |
| sizeof ( *outg ); |
| } |
| break; |
| |
| default: |
| ; |
| } |
| |
| size += sizeof ( *inode ); |
| return size; |
| } |
| |
| |
| #if 0 |
| |
| FT_LOCAL_DEF( FT_Offset ) |
| FTC_INode_Weight( FTC_INode inode ) |
| { |
| return ftc_inode_weight( FTC_NODE( inode ), NULL ); |
| } |
| |
| #endif /* 0 */ |
| |
| |
| /* END */ |