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-rw-r--r--hw/xwin/wincmap.c631
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diff --git a/hw/xwin/wincmap.c b/hw/xwin/wincmap.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: Dakshinamurthy Karra
+ * Suhaib M Siddiqi
+ * Peter Busch
+ * Harold L Hunt II
+ */
+/* $XFree86: xc/programs/Xserver/hw/xwin/wincmap.c,v 1.10 2002/10/17 08:18:22 alanh Exp $ */
+
+#include "win.h"
+
+
+/* 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.
+ */
+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 */
+void
+winInstallColormap (ColormapPtr pColormap)
+{
+ ScreenPtr pScreen = pColormap->pScreen;
+ winScreenPriv(pScreen);
+ ColormapPtr oldpmap = pScreenPriv->pcmapInstalled;
+
+#if CYGDEBUG
+ ErrorF ("winInstallColormap\n");
+#endif
+
+ /* Did the colormap actually change? */
+ if (pColormap != oldpmap)
+ {
+#if CYGDEBUG
+ ErrorF ("winInstallColormap - Colormap has changed, attempt "
+ "to install.\n");
+#endif
+
+ /* 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 */
+void
+winUninstallColormap (ColormapPtr pmap)
+{
+ winScreenPriv(pmap->pScreen);
+ ColormapPtr curpmap = pScreenPriv->pcmapInstalled;
+
+#if CYGDEBUG
+ ErrorF ("winUninstallColormap\n");
+#endif
+
+ /* 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 */
+void
+winStoreColors (ColormapPtr pmap,
+ int ndef,
+ xColorItem *pdefs)
+{
+ ScreenPtr pScreen = pmap->pScreen;
+ winScreenPriv(pScreen);
+ winCmapPriv(pmap);
+ int i;
+ unsigned short nRed, nGreen, nBlue;
+
+#if CYGDEBUG
+ if (ndef != 1)
+ ErrorF ("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;
+
+#if CYGDEBUG
+ ErrorF ("winStoreColors - nRed %d nGreen %d nBlue %d\n",
+ nRed, nGreen, nBlue);
+#endif
+ }
+
+ /* 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 */
+void
+winResolveColor (unsigned short *pred,
+ unsigned short *pgreen,
+ unsigned short *pblue,
+ VisualPtr pVisual)
+{
+#if CYGDEBUG
+ ErrorF ("winResolveColor ()\n");
+#endif
+
+ miResolveColor (pred, pgreen, pblue, pVisual);
+}
+
+
+/* See Porting Layer Definition - p. 29 */
+Bool
+winCreateColormap (ColormapPtr pmap)
+{
+ winPrivCmapPtr pCmapPriv = NULL;
+ ScreenPtr pScreen = pmap->pScreen;
+ winScreenPriv(pScreen);
+
+#if CYGDEBUG
+ ErrorF ("winCreateColormap\n");
+#endif
+
+ /* 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 */
+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);
+
+#if CYGDEBUG
+ ErrorF ("winDestroyColormap - Returning\n");
+#endif
+}
+
+
+int
+winExpandDirectColors (ColormapPtr pmap, int ndef,
+ xColorItem *indefs, xColorItem *outdefs)
+{
+ ErrorF ("\nwinExpandDirectColors\n");
+ return miExpandDirectColors (pmap, ndef, indefs, outdefs);
+}
+
+
+/*
+ * 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;
+ }
+
+#if CYGDEBUG
+ ErrorF ("winGetPaletteDIB - Retrieved %d colors from DIB\n",
+ uiColorsRetrieved);
+#endif
+
+ /* 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;
+
+#if CYGDEBUG
+ ErrorF ("winGetPaletteDIB - Allocating a color: %d; "
+ "%d %d %d\n",
+ pixel, nRed, nGreen, nBlue);
+#endif
+
+ /* 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)
+ {
+ ErrorF ("winGetPaletteDIB - Got: %d; "
+ "%d %d %d\n",
+ 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 GDI
+ */
+
+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;
+ }
+
+#if CYGDEBUG
+ ErrorF ("winGetPaletteDD - uiSystemPaletteEntries %d\n",
+ uiSystemPaletteEntries);
+#endif
+
+ /* 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;
+#if CYGDEBUG
+ ErrorF ("winGetPaletteDD - Allocating a color: %d; "
+ "%d %d %d\n",
+ pixel, nRed, nGreen, nBlue);
+#endif
+ 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;
+
+#if CYGDEBUG
+ ErrorF ("winCreateDefColormap\n");
+#endif
+
+ /* Use standard fb colormaps for non palettized color modes */
+ if (pScreenInfo->dwBPP > 8)
+ {
+ ErrorF ("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.
+ */
+
+#if CYGDEBUG
+ ErrorF ("winCreateDefColormap - defColormap: %d\n",
+ pScreen->defColormap);
+#endif
+
+ /* 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;
+ }
+
+#if CYGDEBUG
+ ErrorF ("winCreateDefColormap - Created a colormap\n");
+#endif
+
+ /* 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;
+
+#if 0
+ /* Have to reserve first 10 and last ten pixels in DirectDraw windowed */
+ if (pScreenInfo->dwEngine != WIN_SERVER_SHADOW_GDI)
+ {
+ int k;
+ Pixel p;
+
+ for (k = 1; k < 10; ++k)
+ {
+ p = k;
+ if (AllocColor (pcmap, &ones, &ones, &ones, &p, 0) != Success)
+ FatalError ("Foo!\n");
+ }
+
+ for (k = 245; k < 255; ++k)
+ {
+ p = k;
+ if (AllocColor (pcmap, &zero, &zero, &zero, &p, 0) != Success)
+ FatalError ("Baz!\n");
+ }
+ }
+#endif
+ }
+
+ /* Install the created colormap */
+ (*pScreen->InstallColormap)(pcmap);
+
+#if CYGDEBUG
+ ErrorF ("winCreateDefColormap - Returning\n");
+#endif
+
+ return TRUE;
+}
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