diff options
author | rachytski <siarhei.rachytski@gmail.com> | 2011-11-24 14:23:32 +0400 |
---|---|---|
committer | Alex Zolotarev <alex@maps.me> | 2015-09-23 01:28:45 +0300 |
commit | 4b31ec6a0ccf1256a0f2198738ebe5c767823b4b (patch) | |
tree | 74b24d7e86d2b2098a655bb4070e2f67dd7d759a /3party/freetype | |
parent | aeab46c84fabb306bf33580511b968a51787e68f (diff) |
[FREETYPE] Implemented StrokedImageCache.
Diffstat (limited to '3party/freetype')
-rw-r--r-- | 3party/freetype/freetype.pro | 2 | ||||
-rw-r--r-- | 3party/freetype/include/freetype/ftcache.h | 25 | ||||
-rw-r--r-- | 3party/freetype/src/cache/ftstrokedcache.c | 399 |
3 files changed, 426 insertions, 0 deletions
diff --git a/3party/freetype/freetype.pro b/3party/freetype/freetype.pro index 30e08feb6e..12a09988fb 100644 --- a/3party/freetype/freetype.pro +++ b/3party/freetype/freetype.pro @@ -102,3 +102,5 @@ SOURCES += \ src/type42/t42objs.c \ src/type42/t42parse.c \ src/winfonts/winfnt.c \ + src/cache/ftstrokedcache.c + diff --git a/3party/freetype/include/freetype/ftcache.h b/3party/freetype/include/freetype/ftcache.h index 6af5306228..0566cb6d8d 100644 --- a/3party/freetype/include/freetype/ftcache.h +++ b/3party/freetype/include/freetype/ftcache.h @@ -22,6 +22,7 @@ #include <ft2build.h> #include FT_GLYPH_H +#include FT_STROKER_H FT_BEGIN_HEADER @@ -858,6 +859,30 @@ FT_BEGIN_HEADER FT_Glyph *aglyph, FTC_Node *anode ); + /// stroked image cache + + FT_EXPORT( FT_Error ) + FTC_StrokedImageCache_New( FTC_Manager manager, + FTC_ImageCache *acache); + + FT_EXPORT( FT_Error ) + FTC_StrokedImageCache_Lookup( FTC_ImageCache cache, + FTC_ImageType type, + FT_Stroker stroker, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ); + + FT_EXPORT( FT_Error ) + FTC_StrokedImageCache_LookupScaler( FTC_ImageCache cache, + FTC_Scaler scaler, + FT_Stroker stroker, + FT_ULong load_flags, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ); + + /*************************************************************************/ /* */ diff --git a/3party/freetype/src/cache/ftstrokedcache.c b/3party/freetype/src/cache/ftstrokedcache.c new file mode 100644 index 0000000000..7ab69ff74e --- /dev/null +++ b/3party/freetype/src/cache/ftstrokedcache.c @@ -0,0 +1,399 @@ +#include <ft2build.h> +#include FT_INTERNAL_OBJECTS_H +#include FT_INTERNAL_DEBUG_H +#include FT_CACHE_H +#include FT_STROKER_H +#include "ftcglyph.h" +#include "ftcimage.h" +#include "ftcsbits.h" + +#include "ftccback.h" +#include "ftcerror.h" + +#define FT_COMPONENT trace_cache + +/* + * Basic Families + * + */ +typedef struct FTC_StrokedAttrRec_ +{ + FTC_ScalerRec scaler; + FT_UInt load_flags; + FT_Stroker stroker; + +} FTC_StrokedAttrRec, *FTC_StrokedAttrs; + +#define FTC_STROKED_ATTR_COMPARE( a, b ) \ + FT_BOOL( FTC_SCALER_COMPARE( &(a)->scaler, &(b)->scaler ) && \ + ((a)->load_flags == (b)->load_flags ) && \ + ((a)->stroker == (b)->stroker) ) + + +#define FTC_STROKED_ATTR_HASH( a ) \ + ( FTC_SCALER_HASH( &(a)->scaler ) + 31*(a)->load_flags + 61 * (int)((a)->stroker)) + + +typedef struct FTC_StrokedQueryRec_ +{ + FTC_GQueryRec gquery; + FTC_StrokedAttrRec attrs; + +} FTC_StrokedQueryRec, *FTC_StrokedQuery; + + +typedef struct FTC_StrokedFamilyRec_ +{ + FTC_FamilyRec family; + FTC_StrokedAttrRec attrs; + +} FTC_StrokedFamilyRec, *FTC_StrokedFamily; + + +FT_CALLBACK_DEF( FT_Bool ) +ftc_stroked_family_compare( FTC_MruNode ftcfamily, + FT_Pointer ftcquery ) +{ + FTC_StrokedFamily family = (FTC_StrokedFamily)ftcfamily; + FTC_StrokedQuery query = (FTC_StrokedQuery)ftcquery; + + return FTC_STROKED_ATTR_COMPARE( &family->attrs, &query->attrs ); +} + + +FT_CALLBACK_DEF( FT_Error ) +ftc_stroked_family_init( FTC_MruNode ftcfamily, + FT_Pointer ftcquery, + FT_Pointer ftccache ) +{ + FTC_StrokedFamily family = (FTC_StrokedFamily)ftcfamily; + FTC_StrokedQuery query = (FTC_StrokedQuery)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_stroked_family_get_count( FTC_Family ftcfamily, + FTC_Manager manager ) +{ + FTC_StrokedFamily family = (FTC_StrokedFamily)ftcfamily; + FT_Error error; + FT_Face face; + FT_UInt result = 0; + + + error = FTC_Manager_LookupFace( manager, family->attrs.scaler.face_id, + &face ); + + if ( error || !face ) + return result; + + if ( (FT_ULong)face->num_glyphs > FT_UINT_MAX || 0 > face->num_glyphs ) + { + FT_TRACE1(( "ftc_basic_family_get_count: too large number of glyphs " )); + FT_TRACE1(( "in this face, truncated\n", face->num_glyphs )); + } + + if ( !error ) + result = (FT_UInt)face->num_glyphs; + + return result; +} + + +FT_CALLBACK_DEF( FT_Error ) +ftc_stroked_family_load_glyph( FTC_Family ftcfamily, + FT_UInt gindex, + FTC_Cache cache, + FT_Glyph *aglyph ) +{ + FTC_StrokedFamily family = (FTC_StrokedFamily)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, FT_LOAD_DEFAULT ); + if ( !error ) + { + if ( face->glyph->format == FT_GLYPH_FORMAT_BITMAP || + face->glyph->format == FT_GLYPH_FORMAT_OUTLINE ) + { + /* ok, stroke and copy it */ + FT_Glyph glyph; + + error = FT_Get_Glyph( face->glyph, &glyph ); + + if (error) + goto Exit; + + error = FT_Glyph_Stroke(&glyph, family->attrs.stroker, 0); + + if (error) + goto Exit; + + error = FT_Glyph_To_Bitmap(&glyph, FT_RENDER_MODE_NORMAL, 0, 1); + + if (!error) + { + *aglyph = glyph; + goto Exit; + } + + } + else + error = FTC_Err_Invalid_Argument; + } + } + +Exit: + return error; +} + +FT_CALLBACK_DEF( FT_Bool ) +ftc_stroked_gnode_compare_faceid( FTC_Node ftcgnode, + FT_Pointer ftcface_id, + FTC_Cache cache, + FT_Bool* list_changed ) +{ + FTC_GNode gnode = (FTC_GNode)ftcgnode; + FTC_FaceID face_id = (FTC_FaceID)ftcface_id; + FTC_StrokedFamily family = (FTC_StrokedFamily)gnode->family; + FT_Bool result; + + + if ( list_changed ) + *list_changed = FALSE; + 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; +} + + +/* + * + * stroked image cache + * + */ + + FT_CALLBACK_TABLE_DEF + const FTC_IFamilyClassRec ftc_stroked_image_family_class = + { + { + sizeof ( FTC_StrokedFamilyRec ), + ftc_stroked_family_compare, + ftc_stroked_family_init, + 0, /* FTC_MruNode_ResetFunc */ + 0 /* FTC_MruNode_DoneFunc */ + }, + ftc_stroked_family_load_glyph + }; + + + FT_CALLBACK_TABLE_DEF + const FTC_GCacheClassRec ftc_stroked_image_cache_class = + { + { + ftc_inode_new, + ftc_inode_weight, + ftc_gnode_compare, + ftc_stroked_gnode_compare_faceid, + ftc_inode_free, + + sizeof ( FTC_GCacheRec ), + ftc_gcache_init, + ftc_gcache_done + }, + (FTC_MruListClass)&ftc_stroked_image_family_class + }; + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_StrokedImageCache_New( FTC_Manager manager, + FTC_ImageCache *acache) + { + return FTC_GCache_New( manager, &ftc_stroked_image_cache_class, + (FTC_GCache*)acache ); + } + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_StrokedImageCache_Lookup( FTC_ImageCache cache, + FTC_ImageType type, + FT_Stroker stroker, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ) + { + FTC_StrokedQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_Error error; + FT_PtrDist 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; + +#if defined( FT_CONFIG_OPTION_OLD_INTERNALS ) && ( FT_INT_MAX > 0xFFFFU ) + + /* + * 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 ( (FT_ULong)type->width >= 0x10000L ) + { + 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; + query.attrs.stroker = stroker; + } + else + +#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */ + + { + if ( (FT_ULong)(type->flags - FT_INT_MIN) > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_ImageCache_Lookup: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (type->flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler.face_id = type->face_id; + query.attrs.scaler.width = type->width; + query.attrs.scaler.height = type->height; + query.attrs.load_flags = (FT_UInt)type->flags; + query.attrs.stroker = stroker; + } + + query.attrs.scaler.pixel = 1; + query.attrs.scaler.x_res = 0; /* make compilers happy */ + query.attrs.scaler.y_res = 0; + + hash = FTC_STROKED_ATTR_HASH( &query.attrs ) + gindex; + +#if 1 /* inlining is about 50% faster! */ + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_stroked_family_compare, + FTC_GNode_Compare, + hash, gindex, + &query, + node, + error ); +#else + error = FTC_GCache_Lookup( FTC_GCACHE( cache ), + hash, gindex, + FTC_GQUERY( &query ), + &node ); +#endif + if ( !error ) + { + *aglyph = FTC_INODE( node )->glyph; + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + } + + Exit: + return error; + } + + + /* documentation is in ftcache.h */ + + FT_EXPORT_DEF( FT_Error ) + FTC_StrokedImageCache_LookupScaler( FTC_ImageCache cache, + FTC_Scaler scaler, + FT_Stroker stroker, + FT_ULong load_flags, + FT_UInt gindex, + FT_Glyph *aglyph, + FTC_Node *anode ) + { + FTC_StrokedQueryRec query; + FTC_Node node = 0; /* make compiler happy */ + FT_Error error; + FT_PtrDist 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; + + /* FT_Load_Glyph(), FT_Load_Char() take FT_UInt flags */ + if ( load_flags > FT_UINT_MAX ) + { + FT_TRACE1(( "FTC_StrokedImageCache_LookupScaler: higher bits in load_flags" )); + FT_TRACE1(( "0x%x are dropped\n", (load_flags & ~((FT_ULong)FT_UINT_MAX)) )); + } + + query.attrs.scaler = scaler[0]; + query.attrs.load_flags = (FT_UInt)load_flags; + query.attrs.stroker = stroker; + + hash = FTC_STROKED_ATTR_HASH( &query.attrs ) + gindex; + + FTC_GCACHE_LOOKUP_CMP( cache, + ftc_stroked_family_compare, + FTC_GNode_Compare, + hash, gindex, + &query, + node, + error ); + if ( !error ) + { + *aglyph = FTC_INODE( node )->glyph; + + if ( anode ) + { + *anode = node; + node->ref_count++; + } + } + + Exit: + return error; + } |