modesetting: add compat header file

Signed-off-by: Dave Airlie <airlied@redhat.com>

hw/xfree86/drivers/modesetting/compat-api.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2012 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Author: Dave Airlie <airlied@redhat.com>
+ */
+
+/* this file provides API compat between server post 1.13 and pre it,
+   it should be reused inside as many drivers as possible */
+#ifndef COMPAT_API_H
+#define COMPAT_API_H
+
+#ifndef GLYPH_HAS_GLYPH_PICTURE_ACCESSOR
+#define GetGlyphPicture(g, s) GlyphPicture((g))[(s)->myNum]
+#define SetGlyphPicture(g, s, p) GlyphPicture((g))[(s)->myNum] = p
+#endif
+
+#ifndef XF86_HAS_SCRN_CONV
+#define xf86ScreenToScrn(s) xf86Screens[(s)->myNum]
+#define xf86ScrnToScreen(s) screenInfo.screens[(s)->scrnIndex]
+#endif
+
+#endif

hw/xfree86/drivers/modesetting/driver.c

@@ -57,6 +57,7 @@
 #include <pciaccess.h>
 #endif
 
+#include "compat-api.h"
 #include "driver.h"
 
 static void AdjustFrame(int scrnIndex, int x, int y, int flags);

hw/xfree86/drivers/modesetting/drmmode_display.c

@@ -49,6 +49,7 @@
 #define DPMS_SERVER
 #include <X11/extensions/dpms.h>
 #endif
+#include "compat-api.h"
 
 static struct dumb_bo *dumb_bo_create(int fd,
 			  const unsigned width, const unsigned height,