1 files changed, 47 insertions, 0 deletions
diff --git a/gs/base/gxtmap.h b/gs/base/gxtmap.h
new file mode 100644
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+++ b/gs/base/gxtmap.h
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+/* Copyright (C) 2001-2006 Artifex Software, Inc.
+   All Rights Reserved.
+  
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* $Id$ */
+/* Definition of transfer mapping function */
+/* (also used for black generation and undercolor removal) */
+
+#ifndef gxtmap_INCLUDED
+#  define gxtmap_INCLUDED
+
+/* Common definition for mapping procedures. */
+/* These are used for transfer functions, black generation, */
+/* and undercolor removal. */
+/* gx_transfer_map should probably be renamed gx_mapping_cache.... */
+
+/* Define an abstract type for a transfer map. */
+typedef struct gx_transfer_map_s gx_transfer_map;
+
+/*
+ * Define the type of a mapping procedure.  There are two forms of this.
+ * The original form passed only the transfer map itself as an argument:
+ */
+typedef float (*gs_mapping_proc) (floatp, const gx_transfer_map *);
+
+/*
+ * Later, we recognized that this procedure should really be a general
+ * closure:
+ */
+typedef float (*gs_mapping_closure_proc_t) (floatp value,
+					    const gx_transfer_map * pmap,
+					    const void *proc_data);
+typedef struct gs_mapping_closure_s {
+    gs_mapping_closure_proc_t proc;
+    const void *data;
+} gs_mapping_closure_t;
+
+#endif /* gxtmap_INCLUDED */