sync code with last improvements from OpenBSD

2023-08-28 05:57:34 +00:00 · 2023-08-28 05:57:34 +00:00 · 88965415ff
commit 88965415ff
26235 changed files with 29195616 additions and 0 deletions
--- a/xserver/include/servermd.h
+++ b/xserver/include/servermd.h
@ -0,0 +1,129 @@
+/***********************************************************
+
+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 SERVERMD_H
+#define SERVERMD_H 1
+
+#if !defined(_DIX_CONFIG_H_) && !defined(_XORG_SERVER_H_)
+#error Drivers must include xorg-server.h before any other xserver headers
+#error xserver code must include dix-config.h before any other headers
+#endif
+
+#include <X11/Xarch.h>		/* for X_LITTLE_ENDIAN/X_BIG_ENDIAN */
+
+#if X_BYTE_ORDER == X_LITTLE_ENDIAN
+#define IMAGE_BYTE_ORDER        LSBFirst
+#define BITMAP_BIT_ORDER        LSBFirst
+#elif X_BYTE_ORDER == X_BIG_ENDIAN
+#define IMAGE_BYTE_ORDER        MSBFirst
+#define BITMAP_BIT_ORDER        MSBFirst
+#else
+#error "Too weird to live."
+#endif
+
+#ifndef GLYPHPADBYTES
+#define GLYPHPADBYTES           4
+#endif
+
+/* size of buffer to use with GetImage, measured in bytes. There's obviously
+ * a trade-off between the amount of heap used and the number of times the
+ * ddx routine has to be called.
+ */
+#ifndef IMAGE_BUFSIZE
+#define IMAGE_BUFSIZE		(64*1024)
+#endif
+
+/* pad scanline to a longword */
+#ifndef BITMAP_SCANLINE_UNIT
+#define BITMAP_SCANLINE_UNIT	32
+#endif
+
+#ifndef BITMAP_SCANLINE_PAD
+#define BITMAP_SCANLINE_PAD  32
+#define LOG2_BITMAP_PAD		5
+#define LOG2_BYTES_PER_SCANLINE_PAD	2
+#endif
+
+#include <X11/Xfuncproto.h>
+/*
+ *   This returns the number of padding units, for depth d and width w.
+ * For bitmaps this can be calculated with the macros above.
+ * Other depths require either grovelling over the formats field of the
+ * screenInfo or hardwired constants.
+ */
+
+typedef struct _PaddingInfo {
+    int padRoundUp;             /* pixels per pad unit - 1 */
+    int padPixelsLog2;          /* log 2 (pixels per pad unit) */
+    int padBytesLog2;           /* log 2 (bytes per pad unit) */
+    int notPower2;              /* bitsPerPixel not a power of 2 */
+    int bytesPerPixel;          /* only set when notPower2 is TRUE */
+    int bitsPerPixel;           /* bits per pixel */
+} PaddingInfo;
+extern _X_EXPORT PaddingInfo PixmapWidthPaddingInfo[];
+
+/* The only portable way to get the bpp from the depth is to look it up */
+#define BitsPerPixel(d) (PixmapWidthPaddingInfo[d].bitsPerPixel)
+
+#define PixmapWidthInPadUnits(w, d) \
+    (PixmapWidthPaddingInfo[d].notPower2 ? \
+    (((int)(w) * PixmapWidthPaddingInfo[d].bytesPerPixel +  \
+	         PixmapWidthPaddingInfo[d].bytesPerPixel) >> \
+	PixmapWidthPaddingInfo[d].padBytesLog2) : \
+    ((int)((w) + PixmapWidthPaddingInfo[d].padRoundUp) >> \
+	PixmapWidthPaddingInfo[d].padPixelsLog2))
+
+/*
+ *	Return the number of bytes to which a scanline of the given
+ * depth and width will be padded.
+ */
+#define PixmapBytePad(w, d) \
+    (PixmapWidthInPadUnits(w, d) << PixmapWidthPaddingInfo[d].padBytesLog2)
+
+#define BitmapBytePad(w) \
+    (((int)((w) + BITMAP_SCANLINE_PAD - 1) >> LOG2_BITMAP_PAD) << LOG2_BYTES_PER_SCANLINE_PAD)
+
+#endif                          /* SERVERMD_H */