R6.6 is the Xorg base-line

include/pixmap.h

@@ -0,0 +1,123 @@
+/* $Xorg: pixmap.h,v 1.4 2001/02/09 02:05:15 xorgcvs Exp $ */
+/***********************************************************
+
+Copyright 1987, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+                        All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its 
+documentation for any purpose and without fee is hereby granted, 
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in 
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.  
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+******************************************************************/
+#ifndef PIXMAP_H
+#define PIXMAP_H
+
+#include "misc.h"
+#include "screenint.h"
+
+/* types for Drawable */
+#define DRAWABLE_WINDOW 0
+#define DRAWABLE_PIXMAP 1
+#define UNDRAWABLE_WINDOW 2
+#define DRAWABLE_BUFFER 3
+
+/* flags to PaintWindow() */
+#define PW_BACKGROUND 0
+#define PW_BORDER 1
+
+#define NullPixmap ((PixmapPtr)0)
+
+typedef struct _Drawable *DrawablePtr;	
+typedef struct _Pixmap *PixmapPtr;
+
+typedef union _PixUnion {
+    PixmapPtr		pixmap;
+    unsigned long	pixel;
+} PixUnion;
+
+#define SamePixUnion(a,b,isPixel)\
+    ((isPixel) ? (a).pixel == (b).pixel : (a).pixmap == (b).pixmap)
+
+#define EqualPixUnion(as, a, bs, b)				\
+    ((as) == (bs) && (SamePixUnion (a, b, as)))
+
+#define OnScreenDrawable(type) \
+	((type == DRAWABLE_WINDOW) || (type == DRAWABLE_BUFFER))
+
+#define WindowDrawable(type) \
+	((type == DRAWABLE_WINDOW) || (type == UNDRAWABLE_WINDOW))
+
+extern PixmapPtr GetScratchPixmapHeader(
+#if NeedFunctionPrototypes
+    ScreenPtr /*pScreen*/,
+    int /*width*/,
+    int /*height*/,
+    int /*depth*/,
+    int /*bitsPerPixel*/,
+    int /*devKind*/,
+    pointer /*pPixData*/
+#endif
+);
+
+extern void FreeScratchPixmapHeader(
+#if NeedFunctionPrototypes
+    PixmapPtr /*pPixmap*/
+#endif
+);
+
+extern Bool CreateScratchPixmapsForScreen(
+#if NeedFunctionPrototypes
+    int /*scrnum*/
+#endif
+);
+
+extern void FreeScratchPixmapsForScreen(
+#if NeedFunctionPrototypes
+    int /*scrnum*/
+#endif
+);
+
+extern PixmapPtr AllocatePixmap(
+#if NeedFunctionPrototypes
+    ScreenPtr /*pScreen*/,
+    int /*pixDataSize*/
+#endif
+);
+
+#endif /* PIXMAP_H */