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Diffstat (limited to 'src/3rdparty/freetype/src/cache/ftcbasic.c')
-rw-r--r--src/3rdparty/freetype/src/cache/ftcbasic.c94
1 files changed, 67 insertions, 27 deletions
diff --git a/src/3rdparty/freetype/src/cache/ftcbasic.c b/src/3rdparty/freetype/src/cache/ftcbasic.c
index a568b975bb..ebc8871ccc 100644
--- a/src/3rdparty/freetype/src/cache/ftcbasic.c
+++ b/src/3rdparty/freetype/src/cache/ftcbasic.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType basic cache interface (body). */
/* */
-/* Copyright 2003, 2004, 2005, 2006, 2007 by */
+/* Copyright 2003, 2004, 2005, 2006, 2007, 2009 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -17,15 +17,17 @@
#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_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"
+#define FT_COMPONENT trace_cache
+
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
@@ -140,8 +142,18 @@
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 = face->num_glyphs;
+ result = (FT_UInt)face->num_glyphs;
return result;
}
@@ -304,7 +316,7 @@
FTC_Node *anode )
{
FTC_BasicQueryRec query;
- FTC_INode node = 0; /* make compiler happy */
+ FTC_Node node = 0; /* make compiler happy */
FT_Error error;
FT_UInt32 hash;
@@ -320,13 +332,13 @@
if ( anode )
*anode = NULL;
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+#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 ( type->width >= 0x10000 )
+ if ( (FT_ULong)type->width >= 0x10000L )
{
FTC_OldImageDesc desc = (FTC_OldImageDesc)type;
@@ -341,10 +353,16 @@
#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 = type->flags;
+ query.attrs.load_flags = (FT_UInt)type->flags;
}
query.attrs.scaler.pixel = 1;
@@ -365,7 +383,7 @@
error = FTC_GCache_Lookup( FTC_GCACHE( cache ),
hash, gindex,
FTC_GQUERY( &query ),
- (FTC_Node*) &node );
+ &node );
#endif
if ( !error )
{
@@ -373,8 +391,8 @@
if ( anode )
{
- *anode = FTC_NODE( node );
- FTC_NODE( node )->ref_count++;
+ *anode = node;
+ node->ref_count++;
}
}
@@ -394,7 +412,7 @@
FTC_Node *anode )
{
FTC_BasicQueryRec query;
- FTC_INode node = 0; /* make compiler happy */
+ FTC_Node node = 0; /* make compiler happy */
FT_Error error;
FT_UInt32 hash;
@@ -410,8 +428,15 @@
if ( anode )
*anode = NULL;
+ /* FT_Load_Glyph(), FT_Load_Char() take FT_UInt flags */
+ if ( load_flags > FT_UINT_MAX )
+ {
+ FT_TRACE1(( "FTC_ImageCache_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 = load_flags;
+ query.attrs.load_flags = (FT_UInt)load_flags;
hash = FTC_BASIC_ATTR_HASH( &query.attrs ) + gindex;
@@ -428,8 +453,8 @@
if ( anode )
{
- *anode = FTC_NODE( node );
- FTC_NODE( node )->ref_count++;
+ *anode = node;
+ node->ref_count++;
}
}
@@ -630,7 +655,7 @@
{
FT_Error error;
FTC_BasicQueryRec query;
- FTC_SNode node = 0; /* make compiler happy */
+ FTC_Node node = 0; /* make compiler happy */
FT_UInt32 hash;
@@ -643,12 +668,12 @@
*ansbit = NULL;
-#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+#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 ( type->width >= 0x10000 )
+ if ( (FT_ULong)type->width >= 0x10000L )
{
FTC_OldImageDesc desc = (FTC_OldImageDesc)type;
@@ -663,10 +688,16 @@
#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 = type->flags;
+ query.attrs.load_flags = (FT_UInt)type->flags;
}
query.attrs.scaler.pixel = 1;
@@ -690,17 +721,18 @@
hash,
gindex,
FTC_GQUERY( &query ),
- (FTC_Node*)&node );
+ &node );
#endif
if ( error )
goto Exit;
- *ansbit = node->sbits + ( gindex - FTC_GNODE( node )->gindex );
+ *ansbit = FTC_SNODE( node )->sbits +
+ ( gindex - FTC_GNODE( node )->gindex );
if ( anode )
{
- *anode = FTC_NODE( node );
- FTC_NODE( node )->ref_count++;
+ *anode = node;
+ node->ref_count++;
}
Exit:
@@ -720,7 +752,7 @@
{
FT_Error error;
FTC_BasicQueryRec query;
- FTC_SNode node = 0; /* make compiler happy */
+ FTC_Node node = 0; /* make compiler happy */
FT_UInt32 hash;
@@ -733,8 +765,15 @@
*ansbit = NULL;
+ /* FT_Load_Glyph(), FT_Load_Char() take FT_UInt flags */
+ if ( load_flags > FT_UINT_MAX )
+ {
+ FT_TRACE1(( "FTC_ImageCache_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 = load_flags;
+ query.attrs.load_flags = (FT_UInt)load_flags;
/* beware, the hash must be the same for all glyph ranges! */
hash = FTC_BASIC_ATTR_HASH( &query.attrs ) +
@@ -750,12 +789,13 @@
if ( error )
goto Exit;
- *ansbit = node->sbits + ( gindex - FTC_GNODE( node )->gindex );
+ *ansbit = FTC_SNODE( node )->sbits +
+ ( gindex - FTC_GNODE( node )->gindex );
if ( anode )
{
- *anode = FTC_NODE( node );
- FTC_NODE( node )->ref_count++;
+ *anode = node;
+ node->ref_count++;
}
Exit:
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-08 10:37:51 +0000