summaryrefslogtreecommitdiffstats
path: root/src/art_alphagamma.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/art_alphagamma.h')
-rw-r--r--src/art_alphagamma.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/art_alphagamma.h b/src/art_alphagamma.h
new file mode 100644
index 0000000..89bab9c
--- /dev/null
+++ b/src/art_alphagamma.h
@@ -0,0 +1,57 @@
+/* Libart_LGPL - library of basic graphic primitives
+ * Copyright (C) 1998 Raph Levien
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __ART_ALPHAGAMMA_H__
+#define __ART_ALPHAGAMMA_H__
+
+/* Alphagamma tables */
+
+#ifdef LIBART_COMPILATION
+#include "art_config.h"
+#include "art_misc.h"
+#else
+#include <libart_lgpl/art_config.h>
+#include <libart_lgpl/art_misc.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+typedef struct _ArtAlphaGamma ArtAlphaGamma;
+
+struct _ArtAlphaGamma {
+ /*< private >*/
+ double gamma;
+ int invtable_size;
+ int table[256];
+ art_u8 invtable[1];
+};
+
+LIBART_EXPORT ArtAlphaGamma *
+art_alphagamma_new (double gamma);
+
+LIBART_EXPORT void
+art_alphagamma_free (ArtAlphaGamma *alphagamma);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __ART_SVP_H__ */