1 files changed, 87 insertions, 0 deletions
diff --git a/gs/base/gsrop.c b/gs/base/gsrop.c
new file mode 100644
index 000000000..2c5461527
--- /dev/null
+++ b/gs/base/gsrop.c
@@ -0,0 +1,87 @@
+/* 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.
+*/
+
+/* $Id$ */
+/* RasterOp / transparency accessing for library */
+#include "gx.h"
+#include "gserrors.h"
+#include "gzstate.h"
+#include "gsrop.h"
+
+/* setrasterop */
+int
+gs_setrasterop(gs_state * pgs, gs_rop3_t rop)
+{
+    if (pgs->in_cachedevice)
+	return_error(gs_error_undefined);
+    pgs->log_op = (rop & rop3_1) | (pgs->log_op & ~rop3_1);
+    return 0;
+}
+
+/* currentrasterop */
+gs_rop3_t
+gs_currentrasterop(const gs_state * pgs)
+{
+    return lop_rop(pgs->log_op);
+}
+
+/* setsourcetransparent */
+int
+gs_setsourcetransparent(gs_state * pgs, bool transparent)
+{
+    if (pgs->in_cachedevice)
+	return_error(gs_error_undefined);
+    pgs->log_op =
+	(transparent ? pgs->log_op | lop_S_transparent :
+	 pgs->log_op & ~lop_S_transparent);
+    return 0;
+}
+
+/* currentsourcetransparent */
+bool
+gs_currentsourcetransparent(const gs_state * pgs)
+{
+    return (pgs->log_op & lop_S_transparent) != 0;
+}
+
+/* settexturetransparent */
+int
+gs_settexturetransparent(gs_state * pgs, bool transparent)
+{
+    if (pgs->in_cachedevice)
+	return_error(gs_error_undefined);
+    pgs->log_op =
+	(transparent ? pgs->log_op | lop_T_transparent :
+	 pgs->log_op & ~lop_T_transparent);
+    return 0;
+}
+
+/* currenttexturetransparent */
+bool
+gs_currenttexturetransparent(const gs_state * pgs)
+{
+    return (pgs->log_op & lop_T_transparent) != 0;
+}
+
+/* Save/restore logical operation.  (For internal use only.) */
+int
+gs_set_logical_op(gs_state * pgs, gs_logical_operation_t lop)
+{
+    pgs->log_op = lop;
+    return 0;
+}
+gs_logical_operation_t
+gs_current_logical_op(const gs_state * pgs)
+{
+    return pgs->log_op;
+}