--- /dev/null
+/* $Id: masking.h,v 1.1 1996/09/13 01:38:16 brianp Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 2.0
+ * Copyright (C) 1995-1996 Brian Paul
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * $Log: masking.h,v $
+ * Revision 1.1 1996/09/13 01:38:16 brianp
+ * Initial revision
+ *
+ */
+
+
+#ifndef MASKING_H
+#define MASKING_H
+
+
+#include "types.h"
+
+
+
+extern void gl_IndexMask( GLcontext *ctx, GLuint mask );
+
+extern void gl_ColorMask( GLcontext *ctx, GLboolean red, GLboolean green,
+ GLboolean blue, GLboolean alpha );
+
+
+/*
+ * Implement glColorMask for a span of RGBA pixels.
+ */
+extern void gl_mask_color_span( GLcontext *ctx,
+ GLuint n, GLint x, GLint y,
+ GLubyte red[], GLubyte green[],
+ GLubyte blue[], GLubyte alpha[] );
+
+
+
+/*
+ * Implement glColorMask for an array of RGBA pixels.
+ */
+extern void gl_mask_color_pixels( GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLubyte red[], GLubyte green[],
+ GLubyte blue[], GLubyte alpha[],
+ const GLubyte mask[] );
+
+
+
+/*
+ * Implement glIndexMask for a span of CI pixels.
+ */
+extern void gl_mask_index_span( GLcontext *ctx,
+ GLuint n, GLint x, GLint y, GLuint index[] );
+
+
+
+/*
+ * Implement glIndexMask for an array of CI pixels.
+ */
+extern void gl_mask_index_pixels( GLcontext *ctx,
+ GLuint n, const GLint x[], const GLint y[],
+ GLuint index[], const GLubyte mask[] );
+
+
+
+#endif
+