svn merge ^/branches/released

1 files changed, 622 insertions, 622 deletions

diff --git a/xorg-server/hw/xwin/wincmap.c b/xorg-server/hw/xwin/wincmap.c
index c077f2235..370a4c584 100644
--- a/xorg-server/hw/xwin/wincmap.c
+++ b/xorg-server/hw/xwin/wincmap.c
@@ -1,622 +1,622 @@
-/*
- *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:	Dakshinamurthy Karra
- *		Suhaib M Siddiqi
- *		Peter Busch
- *		Harold L Hunt II
- */
-
-#ifdef HAVE_XWIN_CONFIG_H
-#include <xwin-config.h>
-#endif
-#include "win.h"
-
-
-/*
- * Local prototypes
- */
-
-static int
-winListInstalledColormaps (ScreenPtr pScreen, Colormap *pmaps);
-
-static void
-winStoreColors (ColormapPtr pmap, int ndef, xColorItem *pdefs);
-
-static void
-winInstallColormap (ColormapPtr pmap);
-
-static void
-winUninstallColormap (ColormapPtr pmap);
-
-static void
-winResolveColor (unsigned short *pred,
-		 unsigned short *pgreen,
-		 unsigned short *pblue,
-		 VisualPtr	pVisual);
-
-static Bool
-winCreateColormap (ColormapPtr pmap);
-
-static void
-winDestroyColormap (ColormapPtr pmap);
-
-static Bool
-winGetPaletteDIB (ScreenPtr pScreen, ColormapPtr pcmap);
-
-static Bool
-winGetPaletteDD (ScreenPtr pScreen, ColormapPtr pcmap);
-
-
-/*
- * Set screen functions for colormaps
- */
-
-void
-winSetColormapFunctions (ScreenPtr pScreen)
-{
-  pScreen->CreateColormap = winCreateColormap;
-  pScreen->DestroyColormap = winDestroyColormap;
-  pScreen->InstallColormap = winInstallColormap;
-  pScreen->UninstallColormap = winUninstallColormap;
-  pScreen->ListInstalledColormaps = winListInstalledColormaps;
-  pScreen->StoreColors = winStoreColors;
-  pScreen->ResolveColor = winResolveColor;
-}
-
-
-/* See Porting Layer Definition - p. 30 */
-/*
- * Walk the list of installed colormaps, filling the pmaps list
- * with the resource ids of the installed maps, and return
- * a count of the total number of installed maps.
- */
-static int
-winListInstalledColormaps (ScreenPtr pScreen, Colormap *pmaps)
-{
-  winScreenPriv(pScreen);
-
-  /*
-   * There will only be one installed colormap, so we only need
-   * to return one id, and the count of installed maps will always
-   * be one.
-   */
-  *pmaps = pScreenPriv->pcmapInstalled->mid;
-  return 1;
-}
-
-
-/* See Porting Layer Definition - p. 30 */
-/* See Programming Windows - p. 663 */
-static void
-winInstallColormap (ColormapPtr pColormap)
-{
-  ScreenPtr		pScreen = pColormap->pScreen;
-  winScreenPriv(pScreen);
-  ColormapPtr		oldpmap = pScreenPriv->pcmapInstalled;
-
-  winDebug ("winInstallColormap\n");
- 
-  /* Did the colormap actually change? */
-  if (pColormap != oldpmap)
-    {
-      winDebug ("winInstallColormap - Colormap has changed, attempt "
-	      "to install.\n");
-      
-      /* Was there a previous colormap? */
-      if (oldpmap != (ColormapPtr) None)
-	{
-	  /* There was a previous colormap; tell clients it is gone */
-	  WalkTree (pColormap->pScreen, TellLostMap, (char *)&oldpmap->mid);
-	}
-      
-      /* Install new colormap */
-      pScreenPriv->pcmapInstalled = pColormap;
-      WalkTree (pColormap->pScreen, TellGainedMap, (char *)&pColormap->mid);
-      
-      /* Call the engine specific colormap install procedure */
-      if (!((*pScreenPriv->pwinInstallColormap) (pColormap)))
-	{
-	  ErrorF ("winInstallColormap - Screen specific colormap install "
-		  "procedure failed.  Continuing, but colors may be "
-		  "messed up from now on.\n");
-	}
-    }
-
-  /* Save a pointer to the newly installed colormap */
-  pScreenPriv->pcmapInstalled = pColormap;
-}
-
-
-/* See Porting Layer Definition - p. 30 */
-static void
-winUninstallColormap (ColormapPtr pmap)
-{
-  winScreenPriv(pmap->pScreen);
-  ColormapPtr curpmap = pScreenPriv->pcmapInstalled;
-
-  winDebug ("winUninstallColormap\n");
-
-  /* Is the colormap currently installed? */
-  if (pmap != curpmap)
-    {
-      /* Colormap not installed, nothing to do */
-      return;
-    }
-  
-  /* Clear the installed colormap flag */
-  pScreenPriv->pcmapInstalled = NULL;
-  
-  /*
-   * NOTE: The default colormap does not get "uninstalled" before
-   * it is destroyed.
-   */
-
-  /* Install the default cmap in place of the cmap to be uninstalled */
-  if (pmap->mid != pmap->pScreen->defColormap)
-    {
-      curpmap = (ColormapPtr) LookupIDByType(pmap->pScreen->defColormap,
-					     RT_COLORMAP);
-      (*pmap->pScreen->InstallColormap) (curpmap);
-    }
-}
-
-
-/* See Porting Layer Definition - p. 30 */
-static void
-winStoreColors (ColormapPtr pmap,
-		int ndef,
-		xColorItem *pdefs)
-{
-  ScreenPtr		pScreen = pmap->pScreen;
-  winScreenPriv(pScreen);
-  winCmapPriv(pmap);
-  int			i;
-  unsigned short	nRed, nGreen, nBlue;
-
-#ifdef WINDBG
-  if (ndef != 1)
-    winDebug ("winStoreColors - ndef: %d\n",
-	    ndef);
-#endif
-
-  /* Save the new colors in the colormap privates */
-  for (i = 0; i < ndef; ++i)
-    {
-      /* Adjust the colors from the X color spec to the Windows color spec */
-      nRed = pdefs[i].red >> 8;
-      nGreen = pdefs[i].green >> 8;
-      nBlue = pdefs[i].blue >> 8;
-
-      /* Copy the colors to a palette entry table */
-      pCmapPriv->peColors[pdefs[0].pixel + i].peRed = nRed;
-      pCmapPriv->peColors[pdefs[0].pixel + i].peGreen = nGreen;
-      pCmapPriv->peColors[pdefs[0].pixel + i].peBlue = nBlue;
-      
-      /* Copy the colors to a RGBQUAD table */
-      pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbRed = nRed;
-      pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbGreen = nGreen;
-      pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbBlue = nBlue;
-
-      winDebug ("winStoreColors - nRed %d nGreen %d nBlue %d\n",
-	      nRed, nGreen, nBlue);
-    }
-
-  /* Call the engine specific store colors procedure */
-  if (!((pScreenPriv->pwinStoreColors) (pmap, ndef, pdefs)))
-    {
-      ErrorF ("winStoreColors - Engine cpecific color storage procedure "
-	      "failed.  Continuing, but colors may be messed up from now "
-	      "on.\n");
-    }
-}
-
-
-/* See Porting Layer Definition - p. 30 */
-static void
-winResolveColor (unsigned short *pred,
-		 unsigned short *pgreen,
-		 unsigned short *pblue,
-		 VisualPtr	pVisual)
-{
-  winDebug ("winResolveColor ()\n");
-
-  miResolveColor (pred, pgreen, pblue, pVisual);
-}
-
-
-/* See Porting Layer Definition - p. 29 */
-static Bool
-winCreateColormap (ColormapPtr pmap)
-{
-  winPrivCmapPtr	pCmapPriv = NULL;
-  ScreenPtr		pScreen = pmap->pScreen;
-  winScreenPriv(pScreen);
-
-  winDebug ("winCreateColormap\n");
-
-  /* Allocate colormap privates */
-  if (!winAllocateCmapPrivates (pmap))
-    {
-      ErrorF ("winCreateColorma - Couldn't allocate cmap privates\n");
-      return FALSE;
-    }
-
-  /* Get a pointer to the newly allocated privates */
-  pCmapPriv = winGetCmapPriv (pmap);
-
-  /*
-   * FIXME: This is some evil hackery to help in handling some X clients
-   * that expect the top pixel to be white.  This "help" only lasts until
-   * some client overwrites the top colormap entry.
-   * 
-   * We don't want to actually allocate the top entry, as that causes
-   * problems with X clients that need 7 planes (128 colors) in the default
-   * colormap, such as Magic 7.1.
-   */
-  pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbRed = 255;
-  pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbGreen = 255;
-  pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbBlue = 255;
-  pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peRed = 255;
-  pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peGreen = 255;
-  pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peBlue = 255;
-
-  /* Call the engine specific colormap initialization procedure */
-  if (!((*pScreenPriv->pwinCreateColormap) (pmap)))
-    {
-      ErrorF ("winCreateColormap - Engine specific colormap creation "
-	      "procedure failed.  Aborting.\n");
-      return FALSE;
-    }
-
-  return TRUE;
-}
-
-
-/* See Porting Layer Definition - p. 29, 30 */
-static void
-winDestroyColormap (ColormapPtr pColormap)
-{
-  winScreenPriv(pColormap->pScreen);
-  winCmapPriv(pColormap);
-
-  /* Call the engine specific colormap destruction procedure */
-  if (!((*pScreenPriv->pwinDestroyColormap) (pColormap)))
-    {
-      ErrorF ("winDestroyColormap - Engine specific colormap destruction "
-	      "procedure failed.  Continuing, but it is possible that memory "
-	      "was leaked, or that colors will be messed up from now on.\n");
-    }
-
-  /* Free the colormap privates */
-  free (pCmapPriv);
-  winSetCmapPriv (pColormap, NULL);
-
-  winDebug ("winDestroyColormap - Returning\n");
-}
-
-
-/*
- * Internal function to load the palette used by the Shadow DIB
- */
-
-static Bool
-winGetPaletteDIB (ScreenPtr pScreen, ColormapPtr pcmap)
-{
-  winScreenPriv(pScreen);
-  int			i;
-  Pixel			pixel; /* Pixel == CARD32 */
-  CARD16		nRed, nGreen, nBlue; /* CARD16 == unsigned short */
-  UINT			uiColorsRetrieved = 0;
-  RGBQUAD		rgbColors[WIN_NUM_PALETTE_ENTRIES];
-      
-  /* Get the color table for the screen */
-  uiColorsRetrieved = GetDIBColorTable (pScreenPriv->hdcScreen,
-					0,
-					WIN_NUM_PALETTE_ENTRIES,
-					rgbColors);
-  if (uiColorsRetrieved == 0)
-    {
-      ErrorF ("winGetPaletteDIB - Could not retrieve screen color table\n");
-      return FALSE;
-    }
-
-  winDebug ("winGetPaletteDIB - Retrieved %d colors from DIB\n",
-	  uiColorsRetrieved);
-
-  /* Set the DIB color table to the default screen palette */
-  if (SetDIBColorTable (pScreenPriv->hdcShadow,
-			0,
-			uiColorsRetrieved,
-			rgbColors) == 0)
-    {
-      ErrorF ("winGetPaletteDIB - SetDIBColorTable () failed\n");
-      return FALSE;
-    }
-
-  /* Alloc each color in the DIB color table */
-  for (i = 0; i < uiColorsRetrieved; ++i)
-    {
-      pixel = i;
-
-      /* Extract the color values for current palette entry */
-      nRed = rgbColors[i].rgbRed << 8;
-      nGreen = rgbColors[i].rgbGreen << 8;
-      nBlue = rgbColors[i].rgbBlue << 8;
-
-      winDebug ("winGetPaletteDIB - Allocating a color: %d; "
-	      "%d %d %d\n",
-	      pixel, nRed, nGreen, nBlue);
-
-      /* Allocate a entry in the X colormap */
-      if (AllocColor (pcmap,
-		      &nRed,
-		      &nGreen,
-		      &nBlue,
-		      &pixel,
-		      0) != Success)
-	{
-	  ErrorF ("winGetPaletteDIB - AllocColor () failed, pixel %d\n",
-		  i);
-	  return FALSE;
-	}
-
-      if (i != pixel
-	  || nRed != rgbColors[i].rgbRed 
-	  || nGreen != rgbColors[i].rgbGreen
-	  || nBlue != rgbColors[i].rgbBlue)
-	{
-	  winDebug ("winGetPaletteDIB - Got: %d; "
-		  "%d %d %d\n",
-		  (int) pixel, nRed, nGreen, nBlue);
-	}
-	  
-      /* FIXME: Not sure that this bit is needed at all */
-      pcmap->red[i].co.local.red = nRed;
-      pcmap->red[i].co.local.green = nGreen;
-      pcmap->red[i].co.local.blue = nBlue;
-    }
-
-  /* System is using a colormap */
-  /* Set the black and white pixel indices */
-  pScreen->whitePixel = uiColorsRetrieved - 1;
-  pScreen->blackPixel = 0;
-
-  return TRUE;
-}
-
-
-/*
- * Internal function to load the standard system palette being used by DD
- */
-
-static Bool
-winGetPaletteDD (ScreenPtr pScreen, ColormapPtr pcmap)
-{
-  int			i;
-  Pixel			pixel; /* Pixel == CARD32 */
-  CARD16		nRed, nGreen, nBlue; /* CARD16 == unsigned short */
-  UINT			uiSystemPaletteEntries;
-  LPPALETTEENTRY	ppeColors = NULL;
-  HDC			hdc = NULL;
-
-  /* Get a DC to obtain the default palette */
-  hdc = GetDC (NULL);
-  if (hdc == NULL)
-    {
-      ErrorF ("winGetPaletteDD - Couldn't get a DC\n");
-      return FALSE;
-    }
-
-  /* Get the number of entries in the system palette */
-  uiSystemPaletteEntries = GetSystemPaletteEntries (hdc,
-						    0, 0, NULL);
-  if (uiSystemPaletteEntries == 0)
-    {
-      ErrorF ("winGetPaletteDD - Unable to determine number of "
-	      "system palette entries\n");
-      return FALSE;
-    }
-
-  winDebug ("winGetPaletteDD - uiSystemPaletteEntries %d\n",
-	  uiSystemPaletteEntries);
-  
-  /* Allocate palette entries structure */
-  ppeColors = malloc (uiSystemPaletteEntries * sizeof (PALETTEENTRY));
-  if (ppeColors == NULL)
-    {
-      ErrorF ("winGetPaletteDD - malloc () for colormap failed\n");
-      return FALSE;
-    }
-
-  /* Get system palette entries */
-  GetSystemPaletteEntries (hdc,
-			   0, uiSystemPaletteEntries, ppeColors);
-
-  /* Allocate an X colormap entry for every system palette entry */
-  for (i = 0; i < uiSystemPaletteEntries; ++i)
-    {
-      pixel = i;
-
-      /* Extract the color values for current palette entry */
-      nRed = ppeColors[i].peRed << 8;
-      nGreen = ppeColors[i].peGreen << 8;
-      nBlue = ppeColors[i].peBlue << 8;
-      winDebug ("winGetPaletteDD - Allocating a color: %d; "
-	      "%d %d %d\n",
-	      pixel, nRed, nGreen, nBlue);
-      if (AllocColor (pcmap,
-		      &nRed,
-		      &nGreen,
-		      &nBlue,
-		      &pixel,
-		      0) != Success)
-	{
-	  ErrorF ("winGetPaletteDD - AllocColor () failed, pixel %d\n",
-		  i);
-	  free (ppeColors);
-	  ppeColors = NULL;
-	  return FALSE;
-	}
-
-      pcmap->red[i].co.local.red = nRed;
-      pcmap->red[i].co.local.green = nGreen;
-      pcmap->red[i].co.local.blue = nBlue;
-    }
-
-  /* System is using a colormap */
-  /* Set the black and white pixel indices */
-  pScreen->whitePixel = uiSystemPaletteEntries - 1;
-  pScreen->blackPixel = 0;
-
-  /* Free colormap */
-  if (ppeColors != NULL)
-    {
-      free (ppeColors);
-      ppeColors = NULL;
-    }
-
-  /* Free the DC */
-  if (hdc != NULL)
-    {
-      ReleaseDC (NULL, hdc);
-      hdc = NULL;
-    }
-
-  return TRUE;
-}
-
-
-/*
- * Install the standard fb colormap, or the GDI colormap,
- * depending on the current screen depth.
- */
-
-Bool
-winCreateDefColormap (ScreenPtr pScreen)
-{
-  winScreenPriv(pScreen);
-  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
-  unsigned short	zero = 0, ones = 0xFFFF;
-  VisualPtr		pVisual = pScreenPriv->pRootVisual;
-  ColormapPtr		pcmap = NULL;
-  Pixel			wp, bp;
-
-  winDebug ("winCreateDefColormap\n");
-
-  /* Use standard fb colormaps for non palettized color modes */
-  if (pScreenInfo->dwBPP > 8)
-    {
-      winDebug ("winCreateDefColormap - Deferring to " \
-	      "fbCreateDefColormap ()\n");
-      return fbCreateDefColormap (pScreen);
-    }
-
-  /*
-   *  AllocAll for non-Dynamic visual classes,
-   *  AllocNone for Dynamic visual classes.
-   */
-
-  /*
-   * Dynamic visual classes allow the colors of the color map
-   * to be changed by clients.
-   */
-
-  winDebug ("winCreateDefColormap - defColormap: %d\n",
-	  pScreen->defColormap);
-
-  /* Allocate an X colormap, owned by client 0 */
-  if (CreateColormap (pScreen->defColormap, 
-		      pScreen,
-		      pVisual,
-		      &pcmap,
-		      (pVisual->class & DynamicClass) ? AllocNone : AllocAll,
-		      0) != Success)
-    {
-      ErrorF ("winCreateDefColormap - CreateColormap failed\n");
-      return FALSE;
-    }
-  if (pcmap == NULL)
-    {
-      ErrorF ("winCreateDefColormap - Colormap could not be created\n");
-      return FALSE;
-    }
-
-  winDebug ("winCreateDefColormap - Created a colormap\n");
-
-  /* Branch on the visual class */
-  if (!(pVisual->class & DynamicClass))
-    {
-      /* Branch on engine type */
-      if (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_GDI)
-	{
-	  /* Load the colors being used by the Shadow DIB */
-	  if (!winGetPaletteDIB (pScreen, pcmap))
-	    {
-	      ErrorF ("winCreateDefColormap - Couldn't get DIB colors\n");
-	      return FALSE;
-	    }
-	}
-      else
-	{
-	  /* Load the colors from the default system palette */
-	  if (!winGetPaletteDD (pScreen, pcmap))
-	    {
-	      ErrorF ("winCreateDefColormap - Couldn't get colors "
-		      "for DD\n");
-	      return FALSE;
-	    }
-	}
-    }
-  else
-    {
-      wp = pScreen->whitePixel;
-      bp = pScreen->blackPixel;
-      
-      /* Allocate a black and white pixel */
-      if ((AllocColor (pcmap, &ones, &ones, &ones, &wp, 0) !=
-	   Success)
-	  ||
-	  (AllocColor (pcmap, &zero, &zero, &zero, &bp, 0) !=
-	   Success))
-	{
-	  ErrorF ("winCreateDefColormap - Couldn't allocate bp or wp\n");
-	  return FALSE;
-	}
-      
-      pScreen->whitePixel = wp;
-      pScreen->blackPixel = bp;
-
-    }
-
-  /* Install the created colormap */
-  (*pScreen->InstallColormap)(pcmap);
-
-  winDebug ("winCreateDefColormap - Returning\n");
-
-  return TRUE;
-}
+/*

+ *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:	Dakshinamurthy Karra

+ *		Suhaib M Siddiqi

+ *		Peter Busch

+ *		Harold L Hunt II

+ */

+

+#ifdef HAVE_XWIN_CONFIG_H

+#include <xwin-config.h>

+#endif

+#include "win.h"

+

+

+/*

+ * Local prototypes

+ */

+

+static int

+winListInstalledColormaps (ScreenPtr pScreen, Colormap *pmaps);

+

+static void

+winStoreColors (ColormapPtr pmap, int ndef, xColorItem *pdefs);

+

+static void

+winInstallColormap (ColormapPtr pmap);

+

+static void

+winUninstallColormap (ColormapPtr pmap);

+

+static void

+winResolveColor (unsigned short *pred,

+		 unsigned short *pgreen,

+		 unsigned short *pblue,

+		 VisualPtr	pVisual);

+

+static Bool

+winCreateColormap (ColormapPtr pmap);

+

+static void

+winDestroyColormap (ColormapPtr pmap);

+

+static Bool

+winGetPaletteDIB (ScreenPtr pScreen, ColormapPtr pcmap);

+

+static Bool

+winGetPaletteDD (ScreenPtr pScreen, ColormapPtr pcmap);

+

+

+/*

+ * Set screen functions for colormaps

+ */

+

+void

+winSetColormapFunctions (ScreenPtr pScreen)

+{

+  pScreen->CreateColormap = winCreateColormap;

+  pScreen->DestroyColormap = winDestroyColormap;

+  pScreen->InstallColormap = winInstallColormap;

+  pScreen->UninstallColormap = winUninstallColormap;

+  pScreen->ListInstalledColormaps = winListInstalledColormaps;

+  pScreen->StoreColors = winStoreColors;

+  pScreen->ResolveColor = winResolveColor;

+}

+

+

+/* See Porting Layer Definition - p. 30 */

+/*

+ * Walk the list of installed colormaps, filling the pmaps list

+ * with the resource ids of the installed maps, and return

+ * a count of the total number of installed maps.

+ */

+static int

+winListInstalledColormaps (ScreenPtr pScreen, Colormap *pmaps)

+{

+  winScreenPriv(pScreen);

+

+  /*

+   * There will only be one installed colormap, so we only need

+   * to return one id, and the count of installed maps will always

+   * be one.

+   */

+  *pmaps = pScreenPriv->pcmapInstalled->mid;

+  return 1;

+}

+

+

+/* See Porting Layer Definition - p. 30 */

+/* See Programming Windows - p. 663 */

+static void

+winInstallColormap (ColormapPtr pColormap)

+{

+  ScreenPtr		pScreen = pColormap->pScreen;

+  winScreenPriv(pScreen);

+  ColormapPtr		oldpmap = pScreenPriv->pcmapInstalled;

+

+  winDebug ("winInstallColormap\n");

+ 

+  /* Did the colormap actually change? */

+  if (pColormap != oldpmap)

+    {

+      winDebug ("winInstallColormap - Colormap has changed, attempt "

+	      "to install.\n");

+      

+      /* Was there a previous colormap? */

+      if (oldpmap != (ColormapPtr) None)

+	{

+	  /* There was a previous colormap; tell clients it is gone */

+	  WalkTree (pColormap->pScreen, TellLostMap, (char *)&oldpmap->mid);

+	}

+      

+      /* Install new colormap */

+      pScreenPriv->pcmapInstalled = pColormap;

+      WalkTree (pColormap->pScreen, TellGainedMap, (char *)&pColormap->mid);

+      

+      /* Call the engine specific colormap install procedure */

+      if (!((*pScreenPriv->pwinInstallColormap) (pColormap)))

+	{

+	  ErrorF ("winInstallColormap - Screen specific colormap install "

+		  "procedure failed.  Continuing, but colors may be "

+		  "messed up from now on.\n");

+	}

+    }

+

+  /* Save a pointer to the newly installed colormap */

+  pScreenPriv->pcmapInstalled = pColormap;

+}

+

+

+/* See Porting Layer Definition - p. 30 */

+static void

+winUninstallColormap (ColormapPtr pmap)

+{

+  winScreenPriv(pmap->pScreen);

+  ColormapPtr curpmap = pScreenPriv->pcmapInstalled;

+

+  winDebug ("winUninstallColormap\n");

+

+  /* Is the colormap currently installed? */

+  if (pmap != curpmap)

+    {

+      /* Colormap not installed, nothing to do */

+      return;

+    }

+  

+  /* Clear the installed colormap flag */

+  pScreenPriv->pcmapInstalled = NULL;

+  

+  /*

+   * NOTE: The default colormap does not get "uninstalled" before

+   * it is destroyed.

+   */

+

+  /* Install the default cmap in place of the cmap to be uninstalled */

+  if (pmap->mid != pmap->pScreen->defColormap)

+    {

+      dixLookupResourceByType((pointer) &curpmap, pmap->pScreen->defColormap,

+				RT_COLORMAP, NullClient, DixUnknownAccess);

+      (*pmap->pScreen->InstallColormap) (curpmap);

+    }

+}

+

+

+/* See Porting Layer Definition - p. 30 */

+static void

+winStoreColors (ColormapPtr pmap,

+		int ndef,

+		xColorItem *pdefs)

+{

+  ScreenPtr		pScreen = pmap->pScreen;

+  winScreenPriv(pScreen);

+  winCmapPriv(pmap);

+  int			i;

+  unsigned short	nRed, nGreen, nBlue;

+

+#ifdef WINDBG

+  if (ndef != 1)

+    winDebug ("winStoreColors - ndef: %d\n",

+	    ndef);

+#endif

+

+  /* Save the new colors in the colormap privates */

+  for (i = 0; i < ndef; ++i)

+    {

+      /* Adjust the colors from the X color spec to the Windows color spec */

+      nRed = pdefs[i].red >> 8;

+      nGreen = pdefs[i].green >> 8;

+      nBlue = pdefs[i].blue >> 8;

+

+      /* Copy the colors to a palette entry table */

+      pCmapPriv->peColors[pdefs[0].pixel + i].peRed = nRed;

+      pCmapPriv->peColors[pdefs[0].pixel + i].peGreen = nGreen;

+      pCmapPriv->peColors[pdefs[0].pixel + i].peBlue = nBlue;

+      

+      /* Copy the colors to a RGBQUAD table */

+      pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbRed = nRed;

+      pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbGreen = nGreen;

+      pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbBlue = nBlue;

+

+      winDebug ("winStoreColors - nRed %d nGreen %d nBlue %d\n",

+	      nRed, nGreen, nBlue);

+    }

+

+  /* Call the engine specific store colors procedure */

+  if (!((pScreenPriv->pwinStoreColors) (pmap, ndef, pdefs)))

+    {

+      ErrorF ("winStoreColors - Engine cpecific color storage procedure "

+	      "failed.  Continuing, but colors may be messed up from now "

+	      "on.\n");

+    }

+}

+

+

+/* See Porting Layer Definition - p. 30 */

+static void

+winResolveColor (unsigned short *pred,

+		 unsigned short *pgreen,

+		 unsigned short *pblue,

+		 VisualPtr	pVisual)

+{

+  winDebug ("winResolveColor ()\n");

+

+  miResolveColor (pred, pgreen, pblue, pVisual);

+}

+

+

+/* See Porting Layer Definition - p. 29 */

+static Bool

+winCreateColormap (ColormapPtr pmap)

+{

+  winPrivCmapPtr	pCmapPriv = NULL;

+  ScreenPtr		pScreen = pmap->pScreen;

+  winScreenPriv(pScreen);

+

+  winDebug ("winCreateColormap\n");

+

+  /* Allocate colormap privates */

+  if (!winAllocateCmapPrivates (pmap))

+    {

+      ErrorF ("winCreateColorma - Couldn't allocate cmap privates\n");

+      return FALSE;

+    }

+

+  /* Get a pointer to the newly allocated privates */

+  pCmapPriv = winGetCmapPriv (pmap);

+

+  /*

+   * FIXME: This is some evil hackery to help in handling some X clients

+   * that expect the top pixel to be white.  This "help" only lasts until

+   * some client overwrites the top colormap entry.

+   * 

+   * We don't want to actually allocate the top entry, as that causes

+   * problems with X clients that need 7 planes (128 colors) in the default

+   * colormap, such as Magic 7.1.

+   */

+  pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbRed = 255;

+  pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbGreen = 255;

+  pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbBlue = 255;

+  pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peRed = 255;

+  pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peGreen = 255;

+  pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peBlue = 255;

+

+  /* Call the engine specific colormap initialization procedure */

+  if (!((*pScreenPriv->pwinCreateColormap) (pmap)))

+    {

+      ErrorF ("winCreateColormap - Engine specific colormap creation "

+	      "procedure failed.  Aborting.\n");

+      return FALSE;

+    }

+

+  return TRUE;

+}

+

+

+/* See Porting Layer Definition - p. 29, 30 */

+static void

+winDestroyColormap (ColormapPtr pColormap)

+{

+  winScreenPriv(pColormap->pScreen);

+  winCmapPriv(pColormap);

+

+  /* Call the engine specific colormap destruction procedure */

+  if (!((*pScreenPriv->pwinDestroyColormap) (pColormap)))

+    {

+      ErrorF ("winDestroyColormap - Engine specific colormap destruction "

+	      "procedure failed.  Continuing, but it is possible that memory "

+	      "was leaked, or that colors will be messed up from now on.\n");

+    }

+

+  /* Free the colormap privates */

+  free (pCmapPriv);

+  winSetCmapPriv (pColormap, NULL);

+

+  winDebug ("winDestroyColormap - Returning\n");

+}

+

+

+/*

+ * Internal function to load the palette used by the Shadow DIB

+ */

+

+static Bool

+winGetPaletteDIB (ScreenPtr pScreen, ColormapPtr pcmap)

+{

+  winScreenPriv(pScreen);

+  int			i;

+  Pixel			pixel; /* Pixel == CARD32 */

+  CARD16		nRed, nGreen, nBlue; /* CARD16 == unsigned short */

+  UINT			uiColorsRetrieved = 0;

+  RGBQUAD		rgbColors[WIN_NUM_PALETTE_ENTRIES];

+      

+  /* Get the color table for the screen */

+  uiColorsRetrieved = GetDIBColorTable (pScreenPriv->hdcScreen,

+					0,

+					WIN_NUM_PALETTE_ENTRIES,

+					rgbColors);

+  if (uiColorsRetrieved == 0)

+    {

+      ErrorF ("winGetPaletteDIB - Could not retrieve screen color table\n");

+      return FALSE;

+    }

+

+  winDebug ("winGetPaletteDIB - Retrieved %d colors from DIB\n",

+	  uiColorsRetrieved);

+

+  /* Set the DIB color table to the default screen palette */

+  if (SetDIBColorTable (pScreenPriv->hdcShadow,

+			0,

+			uiColorsRetrieved,

+			rgbColors) == 0)

+    {

+      ErrorF ("winGetPaletteDIB - SetDIBColorTable () failed\n");

+      return FALSE;

+    }

+

+  /* Alloc each color in the DIB color table */

+  for (i = 0; i < uiColorsRetrieved; ++i)

+    {

+      pixel = i;

+

+      /* Extract the color values for current palette entry */

+      nRed = rgbColors[i].rgbRed << 8;

+      nGreen = rgbColors[i].rgbGreen << 8;

+      nBlue = rgbColors[i].rgbBlue << 8;

+

+      winDebug ("winGetPaletteDIB - Allocating a color: %d; "

+	      "%d %d %d\n",

+	      pixel, nRed, nGreen, nBlue);

+

+      /* Allocate a entry in the X colormap */

+      if (AllocColor (pcmap,

+		      &nRed,

+		      &nGreen,

+		      &nBlue,

+		      &pixel,

+		      0) != Success)

+	{

+	  ErrorF ("winGetPaletteDIB - AllocColor () failed, pixel %d\n",

+		  i);

+	  return FALSE;

+	}

+

+      if (i != pixel

+	  || nRed != rgbColors[i].rgbRed 

+	  || nGreen != rgbColors[i].rgbGreen

+	  || nBlue != rgbColors[i].rgbBlue)

+	{

+	  winDebug ("winGetPaletteDIB - Got: %d; "

+		  "%d %d %d\n",

+		  (int) pixel, nRed, nGreen, nBlue);

+	}

+	  

+      /* FIXME: Not sure that this bit is needed at all */

+      pcmap->red[i].co.local.red = nRed;

+      pcmap->red[i].co.local.green = nGreen;

+      pcmap->red[i].co.local.blue = nBlue;

+    }

+

+  /* System is using a colormap */

+  /* Set the black and white pixel indices */

+  pScreen->whitePixel = uiColorsRetrieved - 1;

+  pScreen->blackPixel = 0;

+

+  return TRUE;

+}

+

+

+/*

+ * Internal function to load the standard system palette being used by DD

+ */

+

+static Bool

+winGetPaletteDD (ScreenPtr pScreen, ColormapPtr pcmap)

+{

+  int			i;

+  Pixel			pixel; /* Pixel == CARD32 */

+  CARD16		nRed, nGreen, nBlue; /* CARD16 == unsigned short */

+  UINT			uiSystemPaletteEntries;

+  LPPALETTEENTRY	ppeColors = NULL;

+  HDC			hdc = NULL;

+

+  /* Get a DC to obtain the default palette */

+  hdc = GetDC (NULL);

+  if (hdc == NULL)

+    {

+      ErrorF ("winGetPaletteDD - Couldn't get a DC\n");

+      return FALSE;

+    }

+

+  /* Get the number of entries in the system palette */

+  uiSystemPaletteEntries = GetSystemPaletteEntries (hdc,

+						    0, 0, NULL);

+  if (uiSystemPaletteEntries == 0)

+    {

+      ErrorF ("winGetPaletteDD - Unable to determine number of "

+	      "system palette entries\n");

+      return FALSE;

+    }

+

+  winDebug ("winGetPaletteDD - uiSystemPaletteEntries %d\n",

+	  uiSystemPaletteEntries);

+  

+  /* Allocate palette entries structure */

+  ppeColors = malloc (uiSystemPaletteEntries * sizeof (PALETTEENTRY));

+  if (ppeColors == NULL)

+    {

+      ErrorF ("winGetPaletteDD - malloc () for colormap failed\n");

+      return FALSE;

+    }

+

+  /* Get system palette entries */

+  GetSystemPaletteEntries (hdc,

+			   0, uiSystemPaletteEntries, ppeColors);

+

+  /* Allocate an X colormap entry for every system palette entry */

+  for (i = 0; i < uiSystemPaletteEntries; ++i)

+    {

+      pixel = i;

+

+      /* Extract the color values for current palette entry */

+      nRed = ppeColors[i].peRed << 8;

+      nGreen = ppeColors[i].peGreen << 8;

+      nBlue = ppeColors[i].peBlue << 8;

+      winDebug ("winGetPaletteDD - Allocating a color: %d; "

+	      "%d %d %d\n",

+	      pixel, nRed, nGreen, nBlue);

+      if (AllocColor (pcmap,

+		      &nRed,

+		      &nGreen,

+		      &nBlue,

+		      &pixel,

+		      0) != Success)

+	{

+	  ErrorF ("winGetPaletteDD - AllocColor () failed, pixel %d\n",

+		  i);

+	  free (ppeColors);

+	  ppeColors = NULL;

+	  return FALSE;

+	}

+

+      pcmap->red[i].co.local.red = nRed;

+      pcmap->red[i].co.local.green = nGreen;

+      pcmap->red[i].co.local.blue = nBlue;

+    }

+

+  /* System is using a colormap */

+  /* Set the black and white pixel indices */

+  pScreen->whitePixel = uiSystemPaletteEntries - 1;

+  pScreen->blackPixel = 0;

+

+  /* Free colormap */

+  if (ppeColors != NULL)

+    {

+      free (ppeColors);

+      ppeColors = NULL;

+    }

+

+  /* Free the DC */

+  if (hdc != NULL)

+    {

+      ReleaseDC (NULL, hdc);

+      hdc = NULL;

+    }

+

+  return TRUE;

+}

+

+

+/*

+ * Install the standard fb colormap, or the GDI colormap,

+ * depending on the current screen depth.

+ */

+

+Bool

+winCreateDefColormap (ScreenPtr pScreen)

+{

+  winScreenPriv(pScreen);

+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;

+  unsigned short	zero = 0, ones = 0xFFFF;

+  VisualPtr		pVisual = pScreenPriv->pRootVisual;

+  ColormapPtr		pcmap = NULL;

+  Pixel			wp, bp;

+

+  winDebug ("winCreateDefColormap\n");

+

+  /* Use standard fb colormaps for non palettized color modes */

+  if (pScreenInfo->dwBPP > 8)

+    {

+      winDebug ("winCreateDefColormap - Deferring to " \

+	      "fbCreateDefColormap ()\n");

+      return fbCreateDefColormap (pScreen);

+    }

+

+  /*

+   *  AllocAll for non-Dynamic visual classes,

+   *  AllocNone for Dynamic visual classes.

+   */

+

+  /*

+   * Dynamic visual classes allow the colors of the color map

+   * to be changed by clients.

+   */

+

+  winDebug ("winCreateDefColormap - defColormap: %d\n",

+	  pScreen->defColormap);

+

+  /* Allocate an X colormap, owned by client 0 */

+  if (CreateColormap (pScreen->defColormap, 

+		      pScreen,

+		      pVisual,

+		      &pcmap,

+		      (pVisual->class & DynamicClass) ? AllocNone : AllocAll,

+		      0) != Success)

+    {

+      ErrorF ("winCreateDefColormap - CreateColormap failed\n");

+      return FALSE;

+    }

+  if (pcmap == NULL)

+    {

+      ErrorF ("winCreateDefColormap - Colormap could not be created\n");

+      return FALSE;

+    }

+

+  winDebug ("winCreateDefColormap - Created a colormap\n");

+

+  /* Branch on the visual class */

+  if (!(pVisual->class & DynamicClass))

+    {

+      /* Branch on engine type */

+      if (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_GDI)

+	{

+	  /* Load the colors being used by the Shadow DIB */

+	  if (!winGetPaletteDIB (pScreen, pcmap))

+	    {

+	      ErrorF ("winCreateDefColormap - Couldn't get DIB colors\n");

+	      return FALSE;

+	    }

+	}

+      else

+	{

+	  /* Load the colors from the default system palette */

+	  if (!winGetPaletteDD (pScreen, pcmap))

+	    {

+	      ErrorF ("winCreateDefColormap - Couldn't get colors "

+		      "for DD\n");

+	      return FALSE;

+	    }

+	}

+    }

+  else

+    {

+      wp = pScreen->whitePixel;

+      bp = pScreen->blackPixel;

+      

+      /* Allocate a black and white pixel */

+      if ((AllocColor (pcmap, &ones, &ones, &ones, &wp, 0) !=

+	   Success)

+	  ||

+	  (AllocColor (pcmap, &zero, &zero, &zero, &bp, 0) !=

+	   Success))

+	{

+	  ErrorF ("winCreateDefColormap - Couldn't allocate bp or wp\n");

+	  return FALSE;

+	}

+      

+      pScreen->whitePixel = wp;

+      pScreen->blackPixel = bp;

+

+    }

+

+  /* Install the created colormap */

+  (*pScreen->InstallColormap)(pcmap);

+

+  winDebug ("winCreateDefColormap - Returning\n");

+

+  return TRUE;

+}