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fontconfig/fontconfig-desktop-property.patch
Akira TAGOH 1b2e3f5380 Enable RGB stripes layout for sub-pixel rendering on KDE only. 
Resolves: rhbz#2137825
2022-11-26 15:51:35 +09:00

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From 6715a14f138df01c11110488b7edbf514e4076b4 Mon Sep 17 00:00:00 2001
From: Akira TAGOH <akira@tagoh.org>
Date: Fri, 25 Nov 2022 21:15:32 +0900
Subject: [PATCH] Add FC_DESKTOP_NAME property
To allow users to have desktop-specific matching rule.
---
fontconfig/fontconfig.h | 27 ++++++++++---------
src/fcdefault.c | 58 ++++++++++++++++++++++++++++++++++++++---
src/fcint.h | 7 +++--
src/fcobjs.h | 1 +
src/fcxml.c | 14 +++++-----
5 files changed, 82 insertions(+), 25 deletions(-)
diff --git a/fontconfig/fontconfig.h b/fontconfig/fontconfig.h
index 09292a3..ac5a0b0 100644
--- a/fontconfig/fontconfig.h
+++ b/fontconfig/fontconfig.h
@@ -128,6 +128,7 @@ typedef int FcBool;
#define FC_POSTSCRIPT_NAME "postscriptname" /* String */
#define FC_FONT_HAS_HINT "fonthashint" /* Bool - true if font has hinting */
#define FC_ORDER "order" /* Integer */
+#define FC_DESKTOP_NAME "desktop" /* String */
#define FC_CACHE_SUFFIX ".cache-" FC_CACHE_VERSION
#define FC_DIR_CACHE_FILE "fonts.cache-" FC_CACHE_VERSION
@@ -285,7 +286,7 @@ typedef struct _FcObjectSet {
int sobject;
const char **objects;
} FcObjectSet;
-
+
typedef enum _FcMatchKind {
FcMatchPattern, FcMatchFont, FcMatchScan,
FcMatchKindEnd,
@@ -400,7 +401,7 @@ FcConfigGetFilename (FcConfig *config,
FcPublic FcChar8 *
FcConfigFilename (const FcChar8 *url);
-
+
FcPublic FcConfig *
FcConfigCreate (void);
@@ -418,7 +419,7 @@ FcConfigGetCurrent (void);
FcPublic FcBool
FcConfigUptoDate (FcConfig *config);
-
+
FcPublic FcBool
FcConfigBuildFonts (FcConfig *config);
@@ -548,12 +549,12 @@ FcCharSetIsSubset (const FcCharSet *a, const FcCharSet *b);
#define FC_CHARSET_DONE ((FcChar32) -1)
FcPublic FcChar32
-FcCharSetFirstPage (const FcCharSet *a,
+FcCharSetFirstPage (const FcCharSet *a,
FcChar32 map[FC_CHARSET_MAP_SIZE],
FcChar32 *next);
FcPublic FcChar32
-FcCharSetNextPage (const FcCharSet *a,
+FcCharSetNextPage (const FcCharSet *a,
FcChar32 map[FC_CHARSET_MAP_SIZE],
FcChar32 *next);
@@ -609,7 +610,7 @@ FcDirCacheLoad (const FcChar8 *dir, FcConfig *config, FcChar8 **cache_file);
FcPublic FcCache *
FcDirCacheRescan (const FcChar8 *dir, FcConfig *config);
-
+
FcPublic FcCache *
FcDirCacheRead (const FcChar8 *dir, FcBool force, FcConfig *config);
@@ -772,7 +773,7 @@ FcFontSetMatch (FcConfig *config,
FcPublic FcPattern *
FcFontMatch (FcConfig *config,
- FcPattern *p,
+ FcPattern *p,
FcResult *result);
FcPublic FcPattern *
@@ -890,10 +891,10 @@ FcPatternHash (const FcPattern *p);
FcPublic FcBool
FcPatternAdd (FcPattern *p, const char *object, FcValue value, FcBool append);
-
+
FcPublic FcBool
FcPatternAddWeak (FcPattern *p, const char *object, FcValue value, FcBool append);
-
+
FcPublic FcResult
FcPatternGet (const FcPattern *p, const char *object, int id, FcValue *v);
@@ -956,7 +957,7 @@ FcPatternGetRange (const FcPattern *p, const char *object, int id, FcRange **r);
FcPublic FcPattern *
FcPatternVaBuild (FcPattern *p, va_list va);
-
+
FcPublic FcPattern *
FcPatternBuild (FcPattern *p, ...) FC_ATTRIBUTE_SENTINEL(0);
@@ -1025,10 +1026,10 @@ FcStrCopy (const FcChar8 *s);
FcPublic FcChar8 *
FcStrCopyFilename (const FcChar8 *s);
-
+
FcPublic FcChar8 *
FcStrPlus (const FcChar8 *s1, const FcChar8 *s2);
-
+
FcPublic void
FcStrFree (FcChar8 *s);
@@ -1145,7 +1146,7 @@ _FCFUNCPROTOEND
* Deprecated functions are placed here to help users fix their code without
* digging through documentation
*/
-
+
#define FcConfigGetRescanInverval FcConfigGetRescanInverval_REPLACE_BY_FcConfigGetRescanInterval
#define FcConfigSetRescanInverval FcConfigSetRescanInverval_REPLACE_BY_FcConfigSetRescanInterval
diff --git a/src/fcdefault.c b/src/fcdefault.c
index a9a3b72..6995216 100644
--- a/src/fcdefault.c
+++ b/src/fcdefault.c
@@ -211,28 +211,73 @@ retry:
return prgname;
}
+static FcChar8 *default_desktop_name;
+
+FcChar8 *
+FcGetDesktopName (void)
+{
+ FcChar8 *desktop_name;
+retry:
+ desktop_name = fc_atomic_ptr_get (&default_desktop_name);
+ if (!desktop_name)
+ {
+ char *s = getenv ("XDG_CURRENT_DESKTOP");
+
+ if (!s)
+ desktop_name = FcStrdup ("");
+ else
+ desktop_name = FcStrdup (s);
+ if (!desktop_name)
+ {
+ fprintf (stderr, "Fontconfig error: out of memory in %s\n",
+ __FUNCTION__);
+ return NULL;
+ }
+
+ if (!fc_atomic_ptr_cmpexch(&default_desktop_name, NULL, desktop_name))
+ {
+ free (desktop_name);
+ goto retry;
+ }
+ }
+ if (desktop_name && !desktop_name[0])
+ return NULL;
+
+ return desktop_name;
+}
+
void
FcDefaultFini (void)
{
FcChar8 *lang;
FcStrSet *langs;
FcChar8 *prgname;
+ FcChar8 *desktop;
lang = fc_atomic_ptr_get (&default_lang);
- if (lang && fc_atomic_ptr_cmpexch (&default_lang, lang, NULL)) {
+ if (lang && fc_atomic_ptr_cmpexch (&default_lang, lang, NULL))
+ {
free (lang);
}
langs = fc_atomic_ptr_get (&default_langs);
- if (langs && fc_atomic_ptr_cmpexch (&default_langs, langs, NULL)) {
+ if (langs && fc_atomic_ptr_cmpexch (&default_langs, langs, NULL))
+ {
FcRefInit (&langs->ref, 1);
FcStrSetDestroy (langs);
}
prgname = fc_atomic_ptr_get (&default_prgname);
- if (prgname && fc_atomic_ptr_cmpexch (&default_prgname, prgname, NULL)) {
+ if (prgname && fc_atomic_ptr_cmpexch (&default_prgname, prgname, NULL))
+ {
free (prgname);
}
+
+ desktop = fc_atomic_ptr_get (&default_desktop_name);
+ if (desktop && fc_atomic_ptr_cmpexch(&default_desktop_name, desktop, NULL))
+ {
+ free (desktop);
+ }
}
void
@@ -336,6 +381,13 @@ FcDefaultSubstitute (FcPattern *pattern)
FcPatternObjectAddString (pattern, FC_PRGNAME_OBJECT, prgname);
}
+ if (FcPatternObjectGet (pattern, FC_DESKTOP_NAME_OBJECT, 0, &v) == FcResultNoMatch)
+ {
+ FcChar8 *desktop = FcGetDesktopName ();
+ if (desktop)
+ FcPatternObjectAddString (pattern, FC_DESKTOP_NAME_OBJECT, desktop);
+ }
+
if (!FcPatternFindObjectIter (pattern, &iter, FC_ORDER_OBJECT))
FcPatternObjectAddInteger (pattern, FC_ORDER_OBJECT, 0);
}
diff --git a/src/fcint.h b/src/fcint.h
index c615b66..78cee54 100644
--- a/src/fcint.h
+++ b/src/fcint.h
@@ -199,7 +199,7 @@ typedef struct _FcValueList {
} FcValueList;
#define FcValueListNext(vl) FcPointerMember(vl,next,FcValueList)
-
+
typedef int FcObject;
/* The 1024 is to leave some room for future added internal objects, such
@@ -238,7 +238,7 @@ struct _FcPattern {
FcFontSetFonts(fs)[i], \
FcPattern) : \
fs->fonts[i])
-
+
typedef enum _FcOp {
FcOpInteger, FcOpDouble, FcOpString, FcOpMatrix, FcOpRange, FcOpBool, FcOpCharSet, FcOpLangSet,
FcOpNil,
@@ -909,6 +909,9 @@ FcGetDefaultLang (void);
FcPrivate FcChar8 *
FcGetPrgname (void);
+FcPrivate FcChar8 *
+FcGetDesktopName (void);
+
FcPrivate void
FcDefaultFini (void);
diff --git a/src/fcobjs.h b/src/fcobjs.h
index acc0471..1cd8ed3 100644
--- a/src/fcobjs.h
+++ b/src/fcobjs.h
@@ -74,4 +74,5 @@ FC_OBJECT (FONT_VARIATIONS, FcTypeString, NULL)
FC_OBJECT (VARIABLE, FcTypeBool, FcCompareBool)
FC_OBJECT (FONT_HAS_HINT, FcTypeBool, FcCompareBool)
FC_OBJECT (ORDER, FcTypeInteger, FcCompareNumber)
+FC_OBJECT (DESKTOP_NAME, FcTypeString, NULL)
/* ^-------------- Add new objects here. */
diff --git a/src/fcxml.c b/src/fcxml.c
index 82a46f2..74c892d 100644
--- a/src/fcxml.c
+++ b/src/fcxml.c
@@ -367,7 +367,7 @@ typedef enum _FcElement {
FcElementDescription,
FcElementRemapDir,
FcElementResetDirs,
-
+
FcElementRescan,
FcElementPrefer,
@@ -731,7 +731,7 @@ FcTypecheckExpr (FcConfigParse *parse, FcExpr *expr, FcType type)
if (o)
FcTypecheckValue (parse, o->type, type);
}
- else
+ else
FcConfigMessage (parse, FcSevereWarning,
"invalid constant used : %s",
expr->u.constant);
@@ -794,7 +794,7 @@ FcTestCreate (FcConfigParse *parse,
if (test)
{
const FcObjectType *o;
-
+
test->kind = kind;
test->qual = qual;
test->object = FcObjectFromName ((const char *) field);
@@ -1533,7 +1533,7 @@ FcStrtod (char *s, char **end)
{
char buf[128];
int slen = strlen (s);
-
+
if (slen + dlen > (int) sizeof (buf))
{
if (end)
@@ -3101,7 +3101,7 @@ FcParsePattern (FcConfigParse *parse)
FcConfigMessage (parse, FcSevereError, "out of memory");
return;
}
-
+
while ((vstack = FcVStackPeek (parse)))
{
switch ((int) vstack->tag) {
@@ -3176,7 +3176,7 @@ FcEndElement(void *userData, const XML_Char *name FC_UNUSED)
case FcElementRescan:
FcParseRescan (parse);
break;
-
+
case FcElementPrefer:
FcParseFamilies (parse, FcVStackPrefer);
break;
@@ -3512,7 +3512,7 @@ FcConfigParseAndLoadFromMemoryInternal (FcConfig *config,
XML_SetDoctypeDeclHandler (p, FcStartDoctypeDecl, FcEndDoctypeDecl);
XML_SetElementHandler (p, FcStartElement, FcEndElement);
XML_SetCharacterDataHandler (p, FcCharacterData);
-
+
#endif /* ENABLE_LIBXML2 */
#ifndef ENABLE_LIBXML2
--
2.38.1
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