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diff -urbN libXfont-1.1.0/src/FreeType/ftfuncs.c libXfont-1.1.0.new/src/FreeType/ftfuncs.c
--- xc/lib/font/FreeType/ftfuncs.c 2005-10-24 02:32:05.000000000 +0800
+++ xc/lib/font/FreeType/ftfuncs.c 2006-06-25 10:56:24.221147322 +0800
@@ -54,10 +54,7 @@
#include FT_TYPE1_TABLES_H
#include FT_XFREE86_H
#include FT_BBOX_H
-#include FT_INTERNAL_TRUETYPE_TYPES_H
#include FT_TRUETYPE_TAGS_H
-#include FT_INTERNAL_SFNT_H
-#include FT_INTERNAL_STREAM_H
/*
* If you want to use FT_Outline_Get_CBox instead of
* FT_Outline_Get_BBox, define here.
@@ -123,6 +120,25 @@
};
+/* read 2-byte value from a SFNT table */
+static FT_UShort
+sfnt_get_ushort( FT_Face face,
+ FT_ULong table_tag,
+ FT_ULong table_offset )
+{
+ FT_Byte buff[2];
+ FT_ULong len = sizeof(buff);
+ FT_UShort result = 0;
+
+ if ( !FT_Load_Sfnt_Table( face, table_tag, table_offset, buff, &len ) );
+ result = (FT_UShort)( (buff[0] << 8) | buff[1] );
+
+ return result;
+}
+
+#define sfnt_get_short(f,t,o) ((FT_Short)sfnt_get_ushort((f),(t),(o)))
+
+
static int ftypeInitP = 0; /* is the engine initialised? */
FT_Library ftypeLibrary;
@@ -211,6 +227,10 @@
if(maxp && maxp->maxContours == 0)
face->bitmap = 1;
}
+
+ face->num_hmetrics = (FT_UInt) sfnt_get_ushort( face->face,
+ TTAG_hhea, 34 );
+
/* Insert face in hashtable and return it */
face->next = faceTable[bucket];
faceTable[bucket] = face;
@@ -462,6 +482,34 @@
}
if( FT_IS_SFNT( face->face ) ) {
+#if 1
+ FT_F26Dot6 tt_char_width, tt_char_height, tt_dim_x, tt_dim_y;
+ FT_UInt nn;
+
+ instance->strike_index=0xFFFFU;
+
+ tt_char_width = (FT_F26Dot6)(trans->scale*(1<<6) + 0.5);
+ tt_char_height = (FT_F26Dot6)(trans->scale*(1<<6) + 0.5);
+
+ tt_dim_x = FLOOR64( ( tt_char_width * trans->xres + 36 ) / 72 + 32 );
+ tt_dim_y = FLOOR64( ( tt_char_height * trans->yres + 36 ) / 72 + 32 );
+
+ if ( tt_dim_x && !tt_dim_y )
+ tt_dim_y = tt_dim_x;
+ else if ( !tt_dim_x && tt_dim_y )
+ tt_dim_x = tt_dim_y;
+
+ for ( nn = 0; nn < face->face->num_fixed_sizes; nn++ )
+ {
+ FT_Bitmap_Size* sz = &face->face->available_sizes[nn];
+
+ if ( tt_dim_x == FLOOR64(sz->x_ppem + 32) && tt_dim_y == FLOOR64(sz->y_ppem + 32) )
+ {
+ instance->strike_index = nn;
+ break;
+ }
+ }
+#else
/* See Set_Char_Sizes() in ttdriver.c */
FT_Error err;
TT_Face tt_face;
@@ -486,6 +534,7 @@
sfnt = (SFNT_Service)tt_face->sfnt;
err = sfnt->set_sbit_strike(tt_face,tt_x_ppem,tt_y_ppem,&instance->strike_index);
if ( err ) instance->strike_index=0xFFFFU;
+#endif
}
/* maintain a linked list of instances */
@@ -803,31 +852,61 @@
* parse the htmx field in TrueType font.
*/
-/* from src/truetype/ttgload.c */
static void
-tt_get_metrics( TT_HoriHeader* header,
+tt_get_metrics( FT_Face face,
FT_UInt idx,
+ FT_UInt num_hmetrics,
FT_Short* bearing,
FT_UShort* advance )
-/* Copyright 1996-2001, 2002 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
{
- TT_LongMetrics longs_m;
- FT_UShort k = header->number_Of_HMetrics;
+ /* read the metrics directly from the horizontal header, we
+ * parse the SFNT table directly through the standard FreeType API.
+ * this works with any version of the library and doesn't need to
+ * peek at its internals. Maybe a bit less
+ */
+ FT_UInt count = num_hmetrics;
+ FT_ULong length = 0;
+ FT_ULong offset = 0;
+ FT_Error error;
- if ( k == 0 ) {
- *bearing = *advance = 0;
- return;
- }
+ error = FT_Load_Sfnt_Table( face, TTAG_hmtx, 0, NULL, &length );
- if ( idx < (FT_UInt)k ) {
- longs_m = (TT_LongMetrics )header->long_metrics + idx;
- *bearing = longs_m->bearing;
- *advance = longs_m->advance;
+ if ( count == 0 || error )
+ {
+ *advance = 0;
+ *bearing = 0;
+ }
+ else if ( idx < count )
+ {
+ offset = idx * 4L;
+ if ( offset + 4 > length )
+ {
+ *advance = 0;
+ *bearing = 0;
+ }
+ else
+ {
+ *advance = sfnt_get_ushort( face, TTAG_hmtx, offset );
+ *bearing = sfnt_get_short ( face, TTAG_hmtx, offset+2 );
+ }
+ }
+ else
+ {
+ offset = 4L * (count - 1);
+ if ( offset + 4 > length )
+ {
+ *advance = 0;
+ *bearing = 0;
+ }
+ else
+ {
+ *advance = sfnt_get_ushort ( face, TTAG_hmtx, offset );
+ offset += 4 + 2 * ( idx - count );
+ if ( offset + 2 > length)
+ *bearing = 0;
+ else
+ *bearing = sfnt_get_short ( face, TTAG_hmtx, offset );
}
- else {
- *bearing = ((TT_ShortMetrics*)header->short_metrics)[idx - k];
- *advance = ((TT_LongMetrics )header->long_metrics)[k - 1].advance;
}
}
@@ -835,6 +914,7 @@
ft_get_very_lazy_bbox( FT_UInt index,
FT_Face face,
FT_Size size,
+ FT_UInt num_hmetrics,
double slant,
FT_Matrix *matrix,
FT_BBox *bbox,
@@ -842,15 +922,14 @@
FT_Long *vertAdvance)
{
if ( FT_IS_SFNT( face ) ) {
- TT_Face ttface = (TT_Face)face;
FT_Size_Metrics *smetrics = &size->metrics;
FT_Short leftBearing = 0;
FT_UShort advance = 0;
FT_Vector p0, p1, p2, p3;
/* horizontal */
- tt_get_metrics(&ttface->horizontal, index,
- &leftBearing, &advance);
+ tt_get_metrics( face, index, num_hmetrics,
+ &leftBearing, &advance );
#if 0
fprintf(stderr,"x_scale=%f y_scale=%f\n",
@@ -910,7 +989,27 @@
FT_UShort glyph_index, FT_Glyph_Metrics *metrics_return,
int *sbitchk_incomplete_but_exist )
{
-#if (FREETYPE_VERSION >= 2001008)
+#if 1
+ if ( strike_index != 0xFFFFU && ft_face->available_sizes != NULL )
+ {
+ FT_Error error;
+ FT_Bitmap_Size* sz = &ft_face->available_sizes[strike_index];
+
+ error = FT_Set_Pixel_Sizes( ft_face, sz->x_ppem/64, sz->y_ppem/64 );
+ if ( !error )
+ {
+ error = FT_Load_Glyph( ft_face, glyph_index, FT_LOAD_SBITS_ONLY );
+ if ( !error )
+ {
+ if ( metrics_return != NULL )
+ *metrics_return = ft_face->glyph->metrics;
+
+ return 0;
+ }
+ }
+ }
+ return -1;
+#elif (FREETYPE_VERSION >= 2001008)
SFNT_Service sfnt;
TT_Face face;
FT_Error error;
@@ -1043,6 +1142,7 @@
if( bitmap_metrics == NULL ) {
if ( sbitchk_incomplete_but_exist==0 && (instance->ttcap.flags & TTCAP_IS_VERY_LAZY) ) {
if( ft_get_very_lazy_bbox( idx, face->face, instance->size,
+ face->num_hmetrics,
instance->ttcap.vl_slant,
&instance->transformation.matrix,
&bbox, &outline_hori_advance,
@@ -1207,10 +1307,27 @@
}
if( face->face->glyph->format != FT_GLYPH_FORMAT_BITMAP ) {
+#ifdef USE_GET_CBOX
+ FT_Outline_Get_CBox(&face->face->glyph->outline, &bbox);
+ ftrc = 0;
+#else
+ ftrc = FT_Outline_Get_BBox(&face->face->glyph->outline, &bbox);
+#endif
+ if( ftrc != 0 ) return FTtoXReturnCode(ftrc);
+ bbox.yMin = FLOOR64( bbox.yMin );
+ bbox.yMax = CEIL64 ( bbox.yMax );
+ ht_actual = ( bbox.yMax - bbox.yMin ) >> 6;
+ /* FreeType think a glyph with 0 height control box is invalid.
+ * So just let X to create a empty bitmap instead. */
+ if ( ht_actual == 0 )
+ is_outline = -1;
+ else
+ {
ftrc = FT_Render_Glyph(face->face->glyph,FT_RENDER_MODE_MONO);
if( ftrc != 0 ) return FTtoXReturnCode(ftrc);
is_outline = 1;
}
+ }
else{
is_outline=0;
}
@@ -1221,6 +1338,7 @@
if( is_outline == 1 ){
if( correct ){
if( ft_get_very_lazy_bbox( idx, face->face, instance->size,
+ face->num_hmetrics,
instance->ttcap.vl_slant,
&instance->transformation.matrix,
&bbox, &outline_hori_advance,
diff -urbN libXfont-1.1.0/src/FreeType/ftfuncs.h libXfont-1.1.0.new/src/FreeType/ftfuncs.h
--- xc/lib/font/FreeType/ftfuncs.h 2005-07-07 22:59:47.000000000 +0800
+++ xc/lib/font/FreeType/ftfuncs.h 2006-06-21 21:05:28.533849804 +0800
@@ -47,6 +47,7 @@
char *filename;
FT_Face face;
int bitmap;
+ FT_UInt num_hmetrics;
struct _FTInstance *instances;
struct _FTInstance *active_instance;
struct _FTFace *next; /* link to next face in bucket */
diff -urbN libXfont-1.1.0/src/FreeType/ftsystem.c libXfont-1.1.0.new/src/FreeType/ftsystem.c
--- xc/lib/font/FreeType/ftsystem.c 2005-07-09 14:36:10.000000000 +0800
+++ xc/lib/font/FreeType/ftsystem.c 2006-06-21 21:05:28.534849622 +0800
@@ -35,7 +35,6 @@
#endif
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
-#include FT_INTERNAL_DEBUG_H
#include FT_SYSTEM_H
#include FT_ERRORS_H
#include FT_TYPES_H
|
