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-rw-r--r--src/base/ftobjs.c148
1 files changed, 125 insertions, 23 deletions
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index 72dea33..a32b2cd 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -4,7 +4,8 @@
/* */
/* The FreeType private base classes (body). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by */
+/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */
+/* 2010 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -37,7 +38,9 @@
#include FT_SERVICE_KERNING_H
#include FT_SERVICE_TRUETYPE_ENGINE_H
+#ifdef FT_CONFIG_OPTION_MAC_FONTS
#include "ftbase.h"
+#endif
#define GRID_FIT_METRICS
@@ -348,6 +351,9 @@
/* free bitmap buffer if needed */
ft_glyphslot_free_bitmap( slot );
+ /* slot->internal might be NULL in out-of-memory situations */
+ if ( slot->internal )
+ {
/* free glyph loader */
if ( FT_DRIVER_USES_OUTLINES( driver ) )
{
@@ -356,6 +362,7 @@
}
FT_FREE( slot->internal );
+ }
}
@@ -588,17 +595,17 @@
* Determine whether we need to auto-hint or not.
* The general rules are:
*
- * - Do only auto-hinting if we have a hinter module,
- * a scalable font format dealing with outlines,
- * and no transforms except simple slants.
+ * - Do only auto-hinting if we have a hinter module, a scalable font
+ * format dealing with outlines, and no transforms except simple
+ * slants and/or rotations by integer multiples of 90 degrees.
*
- * - Then, autohint if FT_LOAD_FORCE_AUTOHINT is set
- * or if we don't have a native font hinter.
+ * - Then, auto-hint if FT_LOAD_FORCE_AUTOHINT is set or if we don't
+ * have a native font hinter.
*
* - Otherwise, auto-hint for LIGHT hinting mode.
*
- * - Exception: The font is `tricky' and requires
- * the native hinter to load properly.
+ * - Exception: The font is `tricky' and requires the native hinter to
+ * load properly.
*/
if ( hinter &&
@@ -607,8 +614,10 @@
FT_DRIVER_IS_SCALABLE( driver ) &&
FT_DRIVER_USES_OUTLINES( driver ) &&
!FT_IS_TRICKY( face ) &&
- face->internal->transform_matrix.yy > 0 &&
- face->internal->transform_matrix.yx == 0 )
+ ( ( face->internal->transform_matrix.yx == 0 &&
+ face->internal->transform_matrix.xx != 0 ) ||
+ ( face->internal->transform_matrix.xx == 0 &&
+ face->internal->transform_matrix.yx != 0 ) ) )
{
if ( ( load_flags & FT_LOAD_FORCE_AUTOHINT ) ||
!FT_DRIVER_HAS_HINTER( driver ) )
@@ -733,11 +742,30 @@
renderer, slot,
&internal->transform_matrix,
&internal->transform_delta );
+ else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
+ {
+ /* apply `standard' transformation if no renderer is available */
+ if ( &internal->transform_matrix )
+ FT_Outline_Transform( &slot->outline,
+ &internal->transform_matrix );
+
+ if ( &internal->transform_delta )
+ FT_Outline_Translate( &slot->outline,
+ internal->transform_delta.x,
+ internal->transform_delta.y );
+ }
+
/* transform advance */
FT_Vector_Transform( &slot->advance, &internal->transform_matrix );
}
}
+ FT_TRACE5(( " x advance: %d\n" , slot->advance.x ));
+ FT_TRACE5(( " y advance: %d\n" , slot->advance.y ));
+
+ FT_TRACE5(( " linear x advance: %d\n" , slot->linearHoriAdvance ));
+ FT_TRACE5(( " linear y advance: %d\n" , slot->linearVertAdvance ));
+
/* do we need to render the image now? */
if ( !error &&
slot->format != FT_GLYPH_FORMAT_BITMAP &&
@@ -2398,12 +2426,24 @@
ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics,
FT_Pos advance )
{
+ FT_Pos height = metrics->height;
+
+
+ /* compensate for glyph with bbox above/below the baseline */
+ if ( metrics->horiBearingY < 0 )
+ {
+ if ( height < metrics->horiBearingY )
+ height = metrics->horiBearingY;
+ }
+ else if ( metrics->horiBearingY > 0 )
+ height -= metrics->horiBearingY;
+
/* the factor 1.2 is a heuristical value */
if ( !advance )
- advance = metrics->height * 12 / 10;
+ advance = height * 12 / 10;
- metrics->vertBearingX = -( metrics->width / 2 );
- metrics->vertBearingY = ( advance - metrics->height ) / 2;
+ metrics->vertBearingX = metrics->horiBearingX - metrics->horiAdvance / 2;
+ metrics->vertBearingY = ( advance - height ) / 2;
metrics->vertAdvance = advance;
}
@@ -3048,7 +3088,12 @@
FT_CMap cmap = FT_CMAP( face->charmap );
- result = cmap->clazz->char_index( cmap, charcode );
+ if ( charcode > 0xFFFFFFFFUL )
+ {
+ FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
+ FT_TRACE1(( " 0x%x is truncated\n", charcode ));
+ }
+ result = cmap->clazz->char_index( cmap, (FT_UInt32)charcode );
}
return result;
}
@@ -3128,8 +3173,20 @@
FT_CMap vcmap = FT_CMAP( charmap );
- result = vcmap->clazz->char_var_index( vcmap, ucmap, charcode,
- variantSelector );
+ if ( charcode > 0xFFFFFFFFUL )
+ {
+ FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
+ FT_TRACE1(( " 0x%x is truncated\n", charcode ));
+ }
+ if ( variantSelector > 0xFFFFFFFFUL )
+ {
+ FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
+ FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
+ }
+
+ result = vcmap->clazz->char_var_index( vcmap, ucmap,
+ (FT_UInt32)charcode,
+ (FT_UInt32)variantSelector );
}
}
@@ -3157,8 +3214,20 @@
FT_CMap vcmap = FT_CMAP( charmap );
- result = vcmap->clazz->char_var_default( vcmap, charcode,
- variantSelector );
+ if ( charcode > 0xFFFFFFFFUL )
+ {
+ FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
+ FT_TRACE1(( " 0x%x is truncated\n", charcode ));
+ }
+ if ( variantSelector > 0xFFFFFFFFUL )
+ {
+ FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
+ FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
+ }
+
+ result = vcmap->clazz->char_var_default( vcmap,
+ (FT_UInt32)charcode,
+ (FT_UInt32)variantSelector );
}
}
@@ -3213,7 +3282,14 @@
FT_Memory memory = FT_FACE_MEMORY( face );
- result = vcmap->clazz->charvariant_list( vcmap, memory, charcode );
+ if ( charcode > 0xFFFFFFFFUL )
+ {
+ FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
+ FT_TRACE1(( " 0x%x is truncated\n", charcode ));
+ }
+
+ result = vcmap->clazz->charvariant_list( vcmap, memory,
+ (FT_UInt32)charcode );
}
}
return result;
@@ -3240,8 +3316,14 @@
FT_Memory memory = FT_FACE_MEMORY( face );
+ if ( variantSelector > 0xFFFFFFFFUL )
+ {
+ FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
+ FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
+ }
+
result = vcmap->clazz->variantchar_list( vcmap, memory,
- variantSelector );
+ (FT_UInt32)variantSelector );
}
}
@@ -3291,7 +3373,7 @@
((FT_Byte*)buffer)[0] = 0;
if ( face &&
- glyph_index <= (FT_UInt)face->num_glyphs &&
+ (FT_Long)glyph_index <= face->num_glyphs &&
FT_HAS_GLYPH_NAMES( face ) )
{
FT_Service_GlyphDict service;
@@ -3391,6 +3473,7 @@
FT_ULong *length )
{
FT_Service_SFNT_Table service;
+ FT_ULong offset;
if ( !face || !FT_IS_SFNT( face ) )
@@ -3400,7 +3483,7 @@
if ( service == NULL )
return FT_Err_Unimplemented_Feature;
- return service->table_info( face, table_index, tag, length );
+ return service->table_info( face, table_index, tag, &offset, length );
}
@@ -4123,6 +4206,13 @@
library->memory = memory;
+#ifdef FT_CONFIG_OPTION_PIC
+ /* initialize position independent code containers */
+ error = ft_pic_container_init( library );
+ if ( error )
+ goto Fail;
+#endif
+
/* allocate the render pool */
library->raster_pool_size = FT_RENDER_POOL_SIZE;
#if FT_RENDER_POOL_SIZE > 0
@@ -4130,12 +4220,19 @@
goto Fail;
#endif
+ library->version_major = FREETYPE_MAJOR;
+ library->version_minor = FREETYPE_MINOR;
+ library->version_patch = FREETYPE_PATCH;
+
/* That's ok now */
*alibrary = library;
return FT_Err_Ok;
Fail:
+#ifdef FT_CONFIG_OPTION_PIC
+ ft_pic_container_destroy( library );
+#endif
FT_FREE( library );
return error;
}
@@ -4216,7 +4313,7 @@
{
FT_Done_Face( FT_FACE( faces->head->data ) );
if ( faces->head )
- FT_ERROR(( "FT_Done_Library: failed to free some faces\n" ));
+ FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" ));
}
}
}
@@ -4252,6 +4349,11 @@
FT_FREE( library->raster_pool );
library->raster_pool_size = 0;
+#ifdef FT_CONFIG_OPTION_PIC
+ /* Destroy pic container contents */
+ ft_pic_container_destroy( library );
+#endif
+
FT_FREE( library );
return FT_Err_Ok;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 16:24:14 +0000