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Diffstat (limited to 'src/cache/ftcbasic.c')
| -rw-r--r-- | src/cache/ftcbasic.c | 811 |
1 files changed, 0 insertions, 811 deletions
diff --git a/src/cache/ftcbasic.c b/src/cache/ftcbasic.c deleted file mode 100644 index a568b97..0000000 --- a/src/cache/ftcbasic.c +++ /dev/null @@ -1,811 +0,0 @@ -/***************************************************************************/ -/* */ -/* ftcbasic.c */ -/* */ -/* The FreeType basic cache interface (body). */ -/* */ -/* Copyright 2003, 2004, 2005, 2006, 2007 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_CACHE_H -#include "ftcglyph.h" -#include "ftcimage.h" -#include "ftcsbits.h" -#include FT_INTERNAL_MEMORY_H - -#include "ftccback.h" -#include "ftcerror.h" - - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - - /* - * These structures correspond to the FTC_Font and FTC_ImageDesc types - * that were defined in version 2.1.7. - */ - typedef struct FTC_OldFontRec_ - { - FTC_FaceID face_id; - FT_UShort pix_width; - FT_UShort pix_height; - - } FTC_OldFontRec, *FTC_OldFont; - - - typedef struct FTC_OldImageDescRec_ - { - FTC_OldFontRec font; - FT_UInt32 flags; - - } FTC_OldImageDescRec, *FTC_OldImageDesc; - - - /* - * Notice that FTC_OldImageDescRec and FTC_ImageTypeRec are nearly - * identical, bit-wise. The only difference is that the `width' and - * `height' fields are expressed as 16-bit integers in the old structure, - * and as normal `int' in the new one. - * - * We are going to perform a weird hack to detect which structure is - * being passed to the image and sbit caches. If the new structure's - * `width' is larger than 0x10000, we assume that we are really receiving - * an FTC_OldImageDesc. - */ - -#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ - - - /* - * Basic Families - * - */ - typedef struct FTC_BasicAttrRec_ - { - FTC_ScalerRec scaler; - FT_UInt load_flags; - - } FTC_BasicAttrRec, *FTC_BasicAttrs; - -#define FTC_BASIC_ATTR_COMPARE( a, b ) \ - FT_BOOL( FTC_SCALER_COMPARE( &(a)->scaler, &(b)->scaler ) && \ - (a)->load_flags == (b)->load_flags ) - -#define FTC_BASIC_ATTR_HASH( a ) \ - ( FTC_SCALER_HASH( &(a)->scaler ) + 31*(a)->load_flags ) - - - typedef struct FTC_BasicQueryRec_ - { - FTC_GQueryRec gquery; - FTC_BasicAttrRec attrs; - - } FTC_BasicQueryRec, *FTC_BasicQuery; - - - typedef struct FTC_BasicFamilyRec_ - { - FTC_FamilyRec family; - FTC_BasicAttrRec attrs; - - } FTC_BasicFamilyRec, *FTC_BasicFamily; - - - FT_CALLBACK_DEF( FT_Bool ) - ftc_basic_family_compare( FTC_MruNode ftcfamily, - FT_Pointer ftcquery ) - { - FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; - FTC_BasicQuery query = (FTC_BasicQuery)ftcquery; - - - return FTC_BASIC_ATTR_COMPARE( &family->attrs, &query->attrs ); - } - - - FT_CALLBACK_DEF( FT_Error ) - ftc_basic_family_init( FTC_MruNode ftcfamily, - FT_Pointer ftcquery, - FT_Pointer ftccache ) - { - FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; - FTC_BasicQuery query = (FTC_BasicQuery)ftcquery; - FTC_Cache cache = (FTC_Cache)ftccache; - - - FTC_Family_Init( FTC_FAMILY( family ), cache ); - family->attrs = query->attrs; - return 0; - } - - - FT_CALLBACK_DEF( FT_UInt ) - ftc_basic_family_get_count( FTC_Family ftcfamily, - FTC_Manager manager ) - { - FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; - FT_Error error; - FT_Face face; - FT_UInt result = 0; - - - error = FTC_Manager_LookupFace( manager, family->attrs.scaler.face_id, - &face ); - if ( !error ) - result = face->num_glyphs; - - return result; - } - - - FT_CALLBACK_DEF( FT_Error ) - ftc_basic_family_load_bitmap( FTC_Family ftcfamily, - FT_UInt gindex, - FTC_Manager manager, - FT_Face *aface ) - { - FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; - FT_Error error; - FT_Size size; - - - error = FTC_Manager_LookupSize( manager, &family->attrs.scaler, &size ); - if ( !error ) - { - FT_Face face = size->face; - - - error = FT_Load_Glyph( face, gindex, - family->attrs.load_flags | FT_LOAD_RENDER ); - if ( !error ) - *aface = face; - } - - return error; - } - - - FT_CALLBACK_DEF( FT_Error ) - ftc_basic_family_load_glyph( FTC_Family ftcfamily, - FT_UInt gindex, - FTC_Cache cache, - FT_Glyph *aglyph ) - { - FTC_BasicFamily family = (FTC_BasicFamily)ftcfamily; - FT_Error error; - FTC_Scaler scaler = &family->attrs.scaler; - FT_Face face; - FT_Size size; - - - /* we will now load the glyph image */ - error = FTC_Manager_LookupSize( cache->manager, - scaler, - &size ); - if ( !error ) - { - face = size->face; - - error = FT_Load_Glyph( face, gindex, family->attrs.load_flags ); - if ( !error ) - { - if ( face->glyph->format == FT_GLYPH_FORMAT_BITMAP || - face->glyph->format == FT_GLYPH_FORMAT_OUTLINE ) - { - /* ok, copy it */ - FT_Glyph glyph; - - - error = FT_Get_Glyph( face->glyph, &glyph ); - if ( !error ) - { - *aglyph = glyph; - goto Exit; - } - } - else - error = FTC_Err_Invalid_Argument; - } - } - - Exit: - return error; - } - - - FT_CALLBACK_DEF( FT_Bool ) - ftc_basic_gnode_compare_faceid( FTC_Node ftcgnode, - FT_Pointer ftcface_id, - FTC_Cache cache ) - { - FTC_GNode gnode = (FTC_GNode)ftcgnode; - FTC_FaceID face_id = (FTC_FaceID)ftcface_id; - FTC_BasicFamily family = (FTC_BasicFamily)gnode->family; - FT_Bool result; - - - result = FT_BOOL( family->attrs.scaler.face_id == face_id ); - if ( result ) - { - /* we must call this function to avoid this node from appearing - * in later lookups with the same face_id! - */ - FTC_GNode_UnselectFamily( gnode, cache ); - } - return result; - } - - - /* - * - * basic image cache - * - */ - - FT_CALLBACK_TABLE_DEF - const FTC_IFamilyClassRec ftc_basic_image_family_class = - { - { - sizeof ( FTC_BasicFamilyRec ), - ftc_basic_family_compare, - ftc_basic_family_init, - 0, /* FTC_MruNode_ResetFunc */ - 0 /* FTC_MruNode_DoneFunc */ - }, - ftc_basic_family_load_glyph - }; - - - FT_CALLBACK_TABLE_DEF - const FTC_GCacheClassRec ftc_basic_image_cache_class = - { - { - ftc_inode_new, - ftc_inode_weight, - ftc_gnode_compare, - ftc_basic_gnode_compare_faceid, - ftc_inode_free, - - sizeof ( FTC_GCacheRec ), - ftc_gcache_init, - ftc_gcache_done - }, - (FTC_MruListClass)&ftc_basic_image_family_class - }; - - - /* documentation is in ftcache.h */ - - FT_EXPORT_DEF( FT_Error ) - FTC_ImageCache_New( FTC_Manager manager, - FTC_ImageCache *acache ) - { - return FTC_GCache_New( manager, &ftc_basic_image_cache_class, - (FTC_GCache*)acache ); - } - - - /* documentation is in ftcache.h */ - - FT_EXPORT_DEF( FT_Error ) - FTC_ImageCache_Lookup( FTC_ImageCache cache, - FTC_ImageType type, - FT_UInt gindex, - FT_Glyph *aglyph, - FTC_Node *anode ) - { - FTC_BasicQueryRec query; - FTC_INode node = 0; /* make compiler happy */ - FT_Error error; - FT_UInt32 hash; - - - /* some argument checks are delayed to FTC_Cache_Lookup */ - if ( !aglyph ) - { - error = FTC_Err_Invalid_Argument; - goto Exit; - } - - *aglyph = NULL; - if ( anode ) - *anode = NULL; - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - - /* - * This one is a major hack used to detect whether we are passed a - * regular FTC_ImageType handle, or a legacy FTC_OldImageDesc one. - */ - if ( type->width >= 0x10000 ) - { - FTC_OldImageDesc desc = (FTC_OldImageDesc)type; - - - query.attrs.scaler.face_id = desc->font.face_id; - query.attrs.scaler.width = desc->font.pix_width; - query.attrs.scaler.height = desc->font.pix_height; - query.attrs.load_flags = desc->flags; - } - else - -#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ - - { - query.attrs.scaler.face_id = type->face_id; - query.attrs.scaler.width = type->width; - query.attrs.scaler.height = type->height; - query.attrs.load_flags = type->flags; - } - - query.attrs.scaler.pixel = 1; - query.attrs.scaler.x_res = 0; /* make compilers happy */ - query.attrs.scaler.y_res = 0; - - hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + gindex; - -#if 1 /* inlining is about 50% faster! */ - FTC_GCACHE_LOOKUP_CMP( cache, - ftc_basic_family_compare, - FTC_GNode_Compare, - hash, gindex, - &query, - node, - error ); -#else - error = FTC_GCache_Lookup( FTC_GCACHE( cache ), - hash, gindex, - FTC_GQUERY( &query ), - (FTC_Node*) &node ); -#endif - if ( !error ) - { - *aglyph = FTC_INODE( node )->glyph; - - if ( anode ) - { - *anode = FTC_NODE( node ); - FTC_NODE( node )->ref_count++; - } - } - - Exit: - return error; - } - - - /* documentation is in ftcache.h */ - - FT_EXPORT_DEF( FT_Error ) - FTC_ImageCache_LookupScaler( FTC_ImageCache cache, - FTC_Scaler scaler, - FT_ULong load_flags, - FT_UInt gindex, - FT_Glyph *aglyph, - FTC_Node *anode ) - { - FTC_BasicQueryRec query; - FTC_INode node = 0; /* make compiler happy */ - FT_Error error; - FT_UInt32 hash; - - - /* some argument checks are delayed to FTC_Cache_Lookup */ - if ( !aglyph || !scaler ) - { - error = FTC_Err_Invalid_Argument; - goto Exit; - } - - *aglyph = NULL; - if ( anode ) - *anode = NULL; - - query.attrs.scaler = scaler[0]; - query.attrs.load_flags = load_flags; - - hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + gindex; - - FTC_GCACHE_LOOKUP_CMP( cache, - ftc_basic_family_compare, - FTC_GNode_Compare, - hash, gindex, - &query, - node, - error ); - if ( !error ) - { - *aglyph = FTC_INODE( node )->glyph; - - if ( anode ) - { - *anode = FTC_NODE( node ); - FTC_NODE( node )->ref_count++; - } - } - - Exit: - return error; - } - - - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - - /* yet another backwards-legacy structure */ - typedef struct FTC_OldImage_Desc_ - { - FTC_FontRec font; - FT_UInt image_type; - - } FTC_OldImage_Desc; - - -#define FTC_OLD_IMAGE_FORMAT( x ) ( (x) & 7 ) - - -#define ftc_old_image_format_bitmap 0x0000 -#define ftc_old_image_format_outline 0x0001 - -#define ftc_old_image_format_mask 0x000F - -#define ftc_old_image_flag_monochrome 0x0010 -#define ftc_old_image_flag_unhinted 0x0020 -#define ftc_old_image_flag_autohinted 0x0040 -#define ftc_old_image_flag_unscaled 0x0080 -#define ftc_old_image_flag_no_sbits 0x0100 - - /* monochrome bitmap */ -#define ftc_old_image_mono ftc_old_image_format_bitmap | \ - ftc_old_image_flag_monochrome - - /* anti-aliased bitmap */ -#define ftc_old_image_grays ftc_old_image_format_bitmap - - /* scaled outline */ -#define ftc_old_image_outline ftc_old_image_format_outline - - - static void - ftc_image_type_from_old_desc( FTC_ImageType typ, - FTC_OldImage_Desc* desc ) - { - typ->face_id = desc->font.face_id; - typ->width = desc->font.pix_width; - typ->height = desc->font.pix_height; - - /* convert image type flags to load flags */ - { - FT_UInt load_flags = FT_LOAD_DEFAULT; - FT_UInt type = desc->image_type; - - - /* determine load flags, depending on the font description's */ - /* image type */ - - if ( FTC_OLD_IMAGE_FORMAT( type ) == ftc_old_image_format_bitmap ) - { - if ( type & ftc_old_image_flag_monochrome ) - load_flags |= FT_LOAD_MONOCHROME; - - /* disable embedded bitmaps loading if necessary */ - if ( type & ftc_old_image_flag_no_sbits ) - load_flags |= FT_LOAD_NO_BITMAP; - } - else - { - /* we want an outline, don't load embedded bitmaps */ - load_flags |= FT_LOAD_NO_BITMAP; - - if ( type & ftc_old_image_flag_unscaled ) - load_flags |= FT_LOAD_NO_SCALE; - } - - /* always render glyphs to bitmaps */ - load_flags |= FT_LOAD_RENDER; - - if ( type & ftc_old_image_flag_unhinted ) - load_flags |= FT_LOAD_NO_HINTING; - - if ( type & ftc_old_image_flag_autohinted ) - load_flags |= FT_LOAD_FORCE_AUTOHINT; - - typ->flags = load_flags; - } - } - - - FT_EXPORT( FT_Error ) - FTC_Image_Cache_New( FTC_Manager manager, - FTC_ImageCache *acache ); - - FT_EXPORT( FT_Error ) - FTC_Image_Cache_Lookup( FTC_ImageCache icache, - FTC_OldImage_Desc* desc, - FT_UInt gindex, - FT_Glyph *aglyph ); - - - FT_EXPORT_DEF( FT_Error ) - FTC_Image_Cache_New( FTC_Manager manager, - FTC_ImageCache *acache ) - { - return FTC_ImageCache_New( manager, (FTC_ImageCache*)acache ); - } - - - - FT_EXPORT_DEF( FT_Error ) - FTC_Image_Cache_Lookup( FTC_ImageCache icache, - FTC_OldImage_Desc* desc, - FT_UInt gindex, - FT_Glyph *aglyph ) - { - FTC_ImageTypeRec type0; - - - if ( !desc ) - return FTC_Err_Invalid_Argument; - - ftc_image_type_from_old_desc( &type0, desc ); - - return FTC_ImageCache_Lookup( (FTC_ImageCache)icache, - &type0, - gindex, - aglyph, - NULL ); - } - -#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ - - - /* - * - * basic small bitmap cache - * - */ - - - FT_CALLBACK_TABLE_DEF - const FTC_SFamilyClassRec ftc_basic_sbit_family_class = - { - { - sizeof( FTC_BasicFamilyRec ), - ftc_basic_family_compare, - ftc_basic_family_init, - 0, /* FTC_MruNode_ResetFunc */ - 0 /* FTC_MruNode_DoneFunc */ - }, - ftc_basic_family_get_count, - ftc_basic_family_load_bitmap - }; - - - FT_CALLBACK_TABLE_DEF - const FTC_GCacheClassRec ftc_basic_sbit_cache_class = - { - { - ftc_snode_new, - ftc_snode_weight, - ftc_snode_compare, - ftc_basic_gnode_compare_faceid, - ftc_snode_free, - - sizeof ( FTC_GCacheRec ), - ftc_gcache_init, - ftc_gcache_done - }, - (FTC_MruListClass)&ftc_basic_sbit_family_class - }; - - - /* documentation is in ftcache.h */ - - FT_EXPORT_DEF( FT_Error ) - FTC_SBitCache_New( FTC_Manager manager, - FTC_SBitCache *acache ) - { - return FTC_GCache_New( manager, &ftc_basic_sbit_cache_class, - (FTC_GCache*)acache ); - } - - - /* documentation is in ftcache.h */ - - FT_EXPORT_DEF( FT_Error ) - FTC_SBitCache_Lookup( FTC_SBitCache cache, - FTC_ImageType type, - FT_UInt gindex, - FTC_SBit *ansbit, - FTC_Node *anode ) - { - FT_Error error; - FTC_BasicQueryRec query; - FTC_SNode node = 0; /* make compiler happy */ - FT_UInt32 hash; - - - if ( anode ) - *anode = NULL; - - /* other argument checks delayed to FTC_Cache_Lookup */ - if ( !ansbit ) - return FTC_Err_Invalid_Argument; - - *ansbit = NULL; - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - - /* This one is a major hack used to detect whether we are passed a - * regular FTC_ImageType handle, or a legacy FTC_OldImageDesc one. - */ - if ( type->width >= 0x10000 ) - { - FTC_OldImageDesc desc = (FTC_OldImageDesc)type; - - - query.attrs.scaler.face_id = desc->font.face_id; - query.attrs.scaler.width = desc->font.pix_width; - query.attrs.scaler.height = desc->font.pix_height; - query.attrs.load_flags = desc->flags; - } - else - -#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ - - { - query.attrs.scaler.face_id = type->face_id; - query.attrs.scaler.width = type->width; - query.attrs.scaler.height = type->height; - query.attrs.load_flags = type->flags; - } - - query.attrs.scaler.pixel = 1; - query.attrs.scaler.x_res = 0; /* make compilers happy */ - query.attrs.scaler.y_res = 0; - - /* beware, the hash must be the same for all glyph ranges! */ - hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + - gindex / FTC_SBIT_ITEMS_PER_NODE; - -#if 1 /* inlining is about 50% faster! */ - FTC_GCACHE_LOOKUP_CMP( cache, - ftc_basic_family_compare, - FTC_SNode_Compare, - hash, gindex, - &query, - node, - error ); -#else - error = FTC_GCache_Lookup( FTC_GCACHE( cache ), - hash, - gindex, - FTC_GQUERY( &query ), - (FTC_Node*)&node ); -#endif - if ( error ) - goto Exit; - - *ansbit = node->sbits + ( gindex - FTC_GNODE( node )->gindex ); - - if ( anode ) - { - *anode = FTC_NODE( node ); - FTC_NODE( node )->ref_count++; - } - - Exit: - return error; - } - - - /* documentation is in ftcache.h */ - - FT_EXPORT_DEF( FT_Error ) - FTC_SBitCache_LookupScaler( FTC_SBitCache cache, - FTC_Scaler scaler, - FT_ULong load_flags, - FT_UInt gindex, - FTC_SBit *ansbit, - FTC_Node *anode ) - { - FT_Error error; - FTC_BasicQueryRec query; - FTC_SNode node = 0; /* make compiler happy */ - FT_UInt32 hash; - - - if ( anode ) - *anode = NULL; - - /* other argument checks delayed to FTC_Cache_Lookup */ - if ( !ansbit || !scaler ) - return FTC_Err_Invalid_Argument; - - *ansbit = NULL; - - query.attrs.scaler = scaler[0]; - query.attrs.load_flags = load_flags; - - /* beware, the hash must be the same for all glyph ranges! */ - hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + - gindex / FTC_SBIT_ITEMS_PER_NODE; - - FTC_GCACHE_LOOKUP_CMP( cache, - ftc_basic_family_compare, - FTC_SNode_Compare, - hash, gindex, - &query, - node, - error ); - if ( error ) - goto Exit; - - *ansbit = node->sbits + ( gindex - FTC_GNODE( node )->gindex ); - - if ( anode ) - { - *anode = FTC_NODE( node ); - FTC_NODE( node )->ref_count++; - } - - Exit: - return error; - } - - -#ifdef FT_CONFIG_OPTION_OLD_INTERNALS - - FT_EXPORT( FT_Error ) - FTC_SBit_Cache_New( FTC_Manager manager, - FTC_SBitCache *acache ); - - FT_EXPORT( FT_Error ) - FTC_SBit_Cache_Lookup( FTC_SBitCache cache, - FTC_OldImage_Desc* desc, - FT_UInt gindex, - FTC_SBit *ansbit ); - - - FT_EXPORT_DEF( FT_Error ) - FTC_SBit_Cache_New( FTC_Manager manager, - FTC_SBitCache *acache ) - { - return FTC_SBitCache_New( manager, (FTC_SBitCache*)acache ); - } - - - FT_EXPORT_DEF( FT_Error ) - FTC_SBit_Cache_Lookup( FTC_SBitCache cache, - FTC_OldImage_Desc* desc, - FT_UInt gindex, - FTC_SBit *ansbit ) - { - FTC_ImageTypeRec type0; - - - if ( !desc ) - return FT_Err_Invalid_Argument; - - ftc_image_type_from_old_desc( &type0, desc ); - - return FTC_SBitCache_Lookup( (FTC_SBitCache)cache, - &type0, - gindex, - ansbit, - NULL ); - } - -#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ - - -/* END */ |