Initial revision

1 files changed, 181 insertions, 0 deletions

diff --git a/hw/xwin/winallpriv.c b/hw/xwin/winallpriv.c
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+/*
+ *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
+ *
+ *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 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 XFREE86 PROJECT 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 XFree86 Project
+ *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 XFree86 Project.
+ *
+ * Authors:	Keith Packard, MIT X Consortium
+ *		Harold L Hunt II
+ */
+/* $XFree86: xc/programs/Xserver/hw/xwin/winallpriv.c,v 1.12 2002/10/31 23:04:39 alanh Exp $ */
+
+#include "win.h"
+
+
+
+/* See Porting Layer Definition - p. 58 */
+/*
+ * Allocate indexes for the privates that we use.
+ * Allocate memory directly for the screen privates.
+ * Reserve space in GCs and Pixmaps for our privates.
+ * Colormap privates are handled in winAllocateCmapPrivates ()
+ */
+
+Bool
+winAllocatePrivates (ScreenPtr pScreen)
+{
+  winPrivScreenPtr	pScreenPriv;
+
+#if CYGDEBUG
+  ErrorF ("winAllocateScreenPrivates - g_ulServerGeneration: %d "
+	  "serverGeneration: %d\n",
+	  g_ulServerGeneration, serverGeneration);
+#endif
+
+  /* We need a new slot for our privates if the screen gen has changed */
+  if (g_ulServerGeneration != serverGeneration)
+    {
+      /* Get an index that we can store our privates at */
+      g_iScreenPrivateIndex = AllocateScreenPrivateIndex ();
+      g_iGCPrivateIndex = AllocateGCPrivateIndex ();
+      g_iPixmapPrivateIndex = AllocatePixmapPrivateIndex ();
+      g_iWindowPrivateIndex = AllocateWindowPrivateIndex ();
+
+      g_ulServerGeneration = serverGeneration;
+    }
+
+  /* Allocate memory for the screen private structure */
+  pScreenPriv = (winPrivScreenPtr) malloc (sizeof (winPrivScreenRec));
+  if (!pScreenPriv)
+    {
+      ErrorF ("winAllocateScreenPrivates - malloc () failed\n");
+      return FALSE;
+    }
+
+  /* Initialize the memory of the private structure */
+  ZeroMemory (pScreenPriv, sizeof (winPrivScreenRec));
+
+  /* Intialize private structure members */
+  pScreenPriv->fActive = TRUE;
+
+  /* Save the screen private pointer */
+  winSetScreenPriv (pScreen, pScreenPriv);
+
+  /* Reserve GC memory for our privates */
+  if (!AllocateGCPrivate (pScreen, g_iGCPrivateIndex,
+			  sizeof (winPrivGCRec)))
+    {
+      ErrorF ("winAllocatePrivates - AllocateGCPrivate () failed\n");
+      return FALSE;
+    }
+
+  /* Reserve Pixmap memory for our privates */
+  if (!AllocatePixmapPrivate (pScreen, g_iPixmapPrivateIndex,
+			      sizeof (winPrivPixmapRec)))
+    {
+      ErrorF ("winAllocatePrivates - AllocatePixmapPrivates () failed\n");
+      return FALSE;
+    }
+
+  /* Reserve Window memory for our privates */
+  if (!AllocateWindowPrivate (pScreen, g_iWindowPrivateIndex,
+			      sizeof (winPrivWinRec)))
+    {
+      ErrorF ("winAllocatePrivates () - AllocateWindowPrivates () failed\n");
+       return FALSE;
+     }
+
+  return TRUE;
+}
+
+
+/*
+ * Colormap privates may be allocated after the default colormap has
+ * already been created for some screens.  This initialization procedure
+ * is called for each default colormap that is found.
+ */
+
+Bool
+winInitCmapPrivates (ColormapPtr pcmap)
+{
+#if CYGDEBUG
+  ErrorF ("winInitCmapPrivates\n");
+#endif
+  
+  /*
+   * I see no way that this function can do anything useful
+   * with only a ColormapPtr.  We don't have the index for
+   * our dev privates yet, so we can't really initialize
+   * anything.  Perhaps I am misunderstanding the purpose
+   * of this function.
+   */
+  
+  return TRUE;
+}
+
+
+/*
+ * Allocate memory for our colormap privates
+ */
+
+Bool
+winAllocateCmapPrivates (ColormapPtr pCmap)
+{
+  winPrivCmapPtr		pCmapPriv;
+  static unsigned long		s_ulPrivateGeneration = 0;
+
+#if CYGDEBUG
+  ErrorF ("winAllocateCmapPrivates\n");
+#endif
+
+  /* Get a new privates index when the server generation changes */
+  if (s_ulPrivateGeneration != serverGeneration)
+    {
+      /* Get an index that we can store our privates at */
+      g_iCmapPrivateIndex = AllocateColormapPrivateIndex (winInitCmapPrivates);
+      
+      /* Save the new server generation */
+      s_ulPrivateGeneration = serverGeneration;
+    }
+
+  /* Allocate memory for our private structure */
+  pCmapPriv = (winPrivCmapPtr) malloc (sizeof (winPrivCmapRec));
+  if (!pCmapPriv)
+    {
+      ErrorF ("winAllocateCmapPrivates - malloc () failed\n");
+      return FALSE;
+    }
+
+  /* Initialize the memory of the private structure */
+  ZeroMemory (pCmapPriv, sizeof (winPrivCmapRec));
+
+  /* Save the cmap private pointer */
+  winSetCmapPriv (pCmap, pCmapPriv);
+
+#if CYGDEBUG
+  ErrorF ("winAllocateCmapPrivates - Returning\n");
+#endif
+
+  return TRUE;
+}