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-rw-r--r--src/FreeType/ftfuncs.c94
1 files changed, 83 insertions, 11 deletions
diff --git a/src/FreeType/ftfuncs.c b/src/FreeType/ftfuncs.c
index 2d50de8..463b253 100644
--- a/src/FreeType/ftfuncs.c
+++ b/src/FreeType/ftfuncs.c
@@ -25,7 +25,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
-/* $XdotOrg: xc/lib/font/FreeType/ftfuncs.c,v 1.2 2004/04/23 18:44:07 eich Exp $ */
+/* $XdotOrg: xc/lib/font/FreeType/ftfuncs.c,v 1.3 2004/05/04 18:47:31 gisburn Exp $ */
/* $XFree86: xc/lib/font/FreeType/ftfuncs.c,v 1.43 2004/02/07 04:37:18 dawes Exp $ */
@@ -69,6 +69,8 @@ THE SOFTWARE.
#include "ftfuncs.h"
#include "xttcap.h"
+#define FREETYPE_VERSION (FREETYPE_MAJOR * 1000000 + FREETYPE_MINOR * 1000 + FREETYPE_PATCH)
+
/* Work around FreeType bug */
#define WORK_AROUND_UPM 2048
@@ -458,6 +460,7 @@ FreeTypeOpenInstance(FTInstancePtr *instance_return, FTFacePtr face,
return FTtoXReturnCode(ftrc);
}
+#if (FREETYPE_VERSION >= 2001008)
if( FT_IS_SFNT( face->face ) ) {
/* See Set_Char_Sizes() in ttdriver.c */
FT_Error err;
@@ -484,7 +487,8 @@ FreeTypeOpenInstance(FTInstancePtr *instance_return, FTFacePtr face,
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 */
instance->next = instance->face->instances;
instance->face->instances = instance;
@@ -902,6 +906,7 @@ ft_get_very_lazy_bbox( FT_UInt index,
return -1;
}
+#if (FREETYPE_VERSION >= 2001008)
static FT_Error
FT_Do_SBit_Metrics( FT_Face ft_face, FT_Size ft_size, FT_ULong strike_index,
FT_UShort glyph_index, FT_Glyph_Metrics *metrics_return )
@@ -970,6 +975,7 @@ FT_Do_SBit_Metrics( FT_Face ft_face, FT_Size ft_size, FT_ULong strike_index,
Exit:
return error;
}
+#endif
int
FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
@@ -978,12 +984,16 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
FTFacePtr face;
FT_BBox bbox;
FT_Long outline_hori_advance, outline_vert_advance;
+ FT_Bitmap *bitmap;
+#if (FREETYPE_VERSION >= 2001008)
FT_Glyph_Metrics sbit_metrics;
- FT_Glyph_Metrics *bitmap_metrics=NULL, *metrics = NULL;
- char *raster;
+ FT_Glyph_Metrics *bitmap_metrics=NULL;
+#endif
+ FT_Glyph_Metrics *metrics = NULL;
+ char *raster = NULL;
int wd, ht, bpr; /* width, height, bytes per row */
int wd_actual, ht_actual;
- int ftrc, is_outline, correct, b_shift=0;
+ int ftrc, is_outline, correct = 0, b_shift=0;
int dx, dy;
int leftSideBearing, rightSideBearing, characterWidth, rawCharacterWidth,
ascent, descent;
@@ -995,6 +1005,31 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
if(!tgp) return AllocError;
+#if (FREETYPE_VERSION < 2001008)
+ bitmap = &face->face->glyph->bitmap;
+
+ if( instance->spacing == FT_CHARCELL ) correct=1;
+ else if( flags & FT_FORCE_CONSTANT_SPACING ) correct=1;
+ else if( instance->ttcap.flags & TTCAP_IS_VERY_LAZY ){
+ if( hasMetrics || (!hasMetrics && (flags & FT_GET_GLYPH_METRICS_ONLY)) )
+ {
+
+ /* If sbit is available, we don't use very lazy method. */
+ /* See TT_Load_Glyph */
+ if( FT_IS_SFNT( face->face ) ) {
+# ifdef USE_INTERNAL_FREETYPE
+ TT_Size tt_size = (TT_Size)instance->size;
+ if( !( !(instance->load_flags & FT_LOAD_NO_BITMAP)
+ && tt_size->strike_index != 0xFFFFU ) )
+# else
+ if((instance->load_flags & FT_LOAD_NO_BITMAP)
+ || (face->face->face_flags & FT_FACE_FLAG_FIXED_SIZES) == 0)
+# endif
+ correct=1;
+ }
+ }
+ }
+#endif
/*
* PREPARE METRICS
*/
@@ -1014,7 +1049,35 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
else{
int new_width;
double ratio;
+#if (FREETYPE_VERSION < 2001008)
+ int try_very_lazy=correct;
+ if( try_very_lazy ) {
+ if( ft_get_very_lazy_bbox( idx, face->face, instance->size,
+ instance->ttcap.vl_slant,
+ &instance->transformation.matrix,
+ &bbox, &outline_hori_advance,
+ &outline_vert_advance ) == 0 ) {
+
+ goto bbox_ok;
+ /* skip exact calculation */
+ }
+ }
+ ftrc = FT_Load_Glyph(instance->face->face, idx,
+ - instance->load_flags);
+ metrics = &face->face->glyph->metrics;
+
+ if(ftrc != 0) return FTtoXReturnCode(ftrc);
+ if( face->face->glyph->format == FT_GLYPH_FORMAT_BITMAP ) {
+ /* bitmap, embedded bitmap */
+ leftSideBearing = metrics->horiBearingX / 64;
+ rightSideBearing = (metrics->width + metrics->horiBearingX) / 64;
+ bbox_center_raw = (2.0 * metrics->horiBearingX + metrics->width)/2.0/64.0;
+ characterWidth = (int)floor(metrics->horiAdvance
+ * instance->ttcap.scaleBBoxWidth / 64.0 + .5);
+ ascent = metrics->horiBearingY / 64;
+ descent = (metrics->height - metrics->horiBearingY) / 64 ;
+#else
if( ! (instance->load_flags & FT_LOAD_NO_BITMAP) ) {
if( FT_Do_SBit_Metrics(face->face,instance->size,instance->strike_index,
idx,&sbit_metrics)==0 ) {
@@ -1039,7 +1102,6 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
bitmap_metrics = metrics;
}
}
-
if( bitmap_metrics ) {
leftSideBearing = bitmap_metrics->horiBearingX / 64;
rightSideBearing = (bitmap_metrics->width + bitmap_metrics->horiBearingX) / 64;
@@ -1048,7 +1110,8 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
* instance->ttcap.scaleBBoxWidth / 64.0 + .5);
ascent = bitmap_metrics->horiBearingY / 64;
descent = (bitmap_metrics->height - bitmap_metrics->horiBearingY) / 64 ;
- /* */
+#endif
+ /* */
new_width = characterWidth;
if( instance->ttcap.flags & TTCAP_DOUBLE_STRIKE_CORRECT_B_BOX_WIDTH )
new_width += instance->ttcap.doubleStrikeShift;
@@ -1064,7 +1127,12 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
leftSideBearing += instance->ttcap.lsbShiftOfBitmapAutoItalic;
/* */
rawCharacterWidth =
- (unsigned short)(short)(floor(1000 * bitmap_metrics->horiAdvance
+ (unsigned short)(short)(floor(1000
+#if (FREETYPE_VERSION < 2001008)
+ * metrics->horiAdvance
+#else
+ * bitmap_metrics->horiAdvance
+#endif
* instance->ttcap.scaleBBoxWidth * ratio / 64.
/ instance->pixel_size));
}
@@ -1147,6 +1215,7 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
if( flags & FT_GET_GLYPH_METRICS_ONLY ) return Successful;
+#if (FREETYPE_VERSION >= 2001008)
/*
* CHECK THE NECESSITY OF BITMAP POSITION'S CORRECTION
*/
@@ -1168,7 +1237,8 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
}
}
}
-
+#endif
+
/*
* RENDER AND ALLOCATE BUFFER
*/
@@ -1311,13 +1381,15 @@ FreeTypeRasteriseGlyph(unsigned idx, int flags, CharInfoPtr tgp,
*/
{
- FT_Bitmap *bitmap;
int i, j;
unsigned char *current_raster;
unsigned char *current_buffer;
int mod_dx0,mod_dx1;
int div_dx;
- bitmap = &face->face->glyph->bitmap;
+#if (FREETYPE_VERSION >= 2001008)
+ bitmap = &face->face->glyph->bitmap;
+#endif
+
if( 0 <= dx ){
div_dx = dx / 8;
mod_dx0 = dx % 8;
generated by cgit v1.2.1 (git 2.18.0) at 2023-09-29 00:23:05 +0000