ref: a6cca5245ff0a60ac9c4123a287c989c310f4958
parent: a36693b701283f24862f35926e0b3396791a8994
author: halfwit <michaelmisch1985@gmail.com>
date: Thu Oct 15 09:41:39 PDT 2020
Add subfontcache
--- a/libdraw/meson.build
+++ b/libdraw/meson.build
@@ -12,6 +12,7 @@
'init.c',
'loadimage.c',
'openfont.c',
+ 'subfontcache.c',
'window.c',
]
--- /dev/null
+++ b/libdraw/subfontcache.c
@@ -1,0 +1,41 @@
+#include <stdlib.h>
+#include <string.h>
+#include "draw.h"
+
+/*
+ * Easy versions of the cache routines; may be substituted by fancier ones for other purposes
+ */
+
+static char *lastname;
+static Subfont *lastsubfont;
+
+Subfont*
+lookupsubfont(Display *d, char *name)
+{+ if(d && strcmp(name, "*default*") == 0)
+ return d->defaultsubfont;
+ if(lastname && strcmp(name, lastname)==0)
+ if(d==lastsubfont->bits->display){+ lastsubfont->ref++;
+ return lastsubfont;
+ }
+ return 0;
+}
+
+void
+installsubfont(char *name, Subfont *subfont)
+{+ free(lastname);
+ lastname = strdup(name);
+ lastsubfont = subfont; /* notice we don't free the old one; that's your business */
+}
+
+void
+uninstallsubfont(Subfont *subfont)
+{+ if(subfont == lastsubfont){+ free(lastname);
+ lastname = 0;
+ lastsubfont = 0;
+ }
+}