diff options
Diffstat (limited to 'xorg-server/hw/xfree86/vgahw/vgaCmap.c')
| -rw-r--r-- | xorg-server/hw/xfree86/vgahw/vgaCmap.c | 602 |
1 files changed, 301 insertions, 301 deletions
diff --git a/xorg-server/hw/xfree86/vgahw/vgaCmap.c b/xorg-server/hw/xfree86/vgahw/vgaCmap.c index 06eeb4ce1..e337b42c0 100644 --- a/xorg-server/hw/xfree86/vgahw/vgaCmap.c +++ b/xorg-server/hw/xfree86/vgahw/vgaCmap.c @@ -1,301 +1,301 @@ -/* - * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany. - * - * 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, and that the name of Thomas Roell not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Thomas Roell makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL THOMAS ROELL 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. - * - */ - - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include <X11/X.h> -#include <X11/Xproto.h> -#include "windowstr.h" -#include "compiler.h" -#include "mipointer.h" -#include "micmap.h" - -#include "xf86.h" -#include "vgaHW.h" - -#include <X11/extensions/xf86dgaproto.h> -#include "dgaproc.h" - - -#define NOMAPYET (ColormapPtr) 0 - -int -vgaListInstalledColormaps(pScreen, pmaps) - ScreenPtr pScreen; - Colormap *pmaps; -{ - /* By the time we are processing requests, we can guarantee that there - * is always a colormap installed */ - - *pmaps = GetInstalledmiColormap(pScreen)->mid; - return(1); -} - -int -vgaGetInstalledColormaps(pScreen, pmaps) - ScreenPtr pScreen; - ColormapPtr *pmaps; -{ - /* By the time we are processing requests, we can guarantee that there - * is always a colormap installed */ - - *pmaps = GetInstalledmiColormap(pScreen); - return(1); -} - -int vgaCheckColorMap(ColormapPtr pmap) -{ - return (pmap != GetInstalledmiColormap(pmap->pScreen)); -} - - -void -vgaStoreColors(pmap, ndef, pdefs) - ColormapPtr pmap; - int ndef; - xColorItem *pdefs; -{ - int i; - unsigned char *cmap, *tmp = NULL; - xColorItem directDefs[256]; - Bool new_overscan = FALSE; - Bool writeColormap; - - /* This can get called before the ScrnInfoRec is installed so we - can't rely on getting it with XF86SCRNINFO() */ - int scrnIndex = pmap->pScreen->myNum; - ScrnInfoPtr scrninfp = xf86Screens[scrnIndex]; - vgaHWPtr hwp = VGAHWPTR(scrninfp); - - unsigned char overscan = hwp->ModeReg.Attribute[OVERSCAN]; - unsigned char tmp_overscan = 0; - - if (vgaCheckColorMap(pmap)) - return; - - if ((pmap->pVisual->class | DynamicClass) == DirectColor) - { - ndef = miExpandDirectColors (pmap, ndef, pdefs, directDefs); - pdefs = directDefs; - } - - writeColormap = scrninfp->vtSema; - if (DGAAvailable(scrnIndex)) - { - writeColormap = writeColormap || - (DGAGetDirectMode(scrnIndex) && - !(DGAGetFlags(scrnIndex) & XF86DGADirectColormap)) || - (DGAGetFlags(scrnIndex) & XF86DGAHasColormap); - } - - if (writeColormap) - hwp->enablePalette(hwp); - - for(i = 0; i < ndef; i++) - { - if (pdefs[i].pixel == overscan) - { - new_overscan = TRUE; - } - cmap = &(hwp->ModeReg.DAC[pdefs[i].pixel*3]); - if (scrninfp->rgbBits == 8) { - cmap[0] = pdefs[i].red >> 8; - cmap[1] = pdefs[i].green >> 8; - cmap[2] = pdefs[i].blue >> 8; - } - else { - cmap[0] = pdefs[i].red >> 10; - cmap[1] = pdefs[i].green >> 10; - cmap[2] = pdefs[i].blue >> 10; - } -#if 0 - if (clgd6225Lcd) - { - /* The LCD doesn't like white */ - if (cmap[0] == 63) cmap[0]= 62; - if (cmap[1] == 63) cmap[1]= 62; - if (cmap[2] == 63) cmap[2]= 62; - } -#endif - - if (writeColormap) - { - if (hwp->ShowOverscan && i == 255) - continue; - hwp->writeDacWriteAddr(hwp, pdefs[i].pixel); - DACDelay(hwp); - hwp->writeDacData(hwp, cmap[0]); - DACDelay(hwp); - hwp->writeDacData(hwp, cmap[1]); - DACDelay(hwp); - hwp->writeDacData(hwp, cmap[2]); - DACDelay(hwp); - } - } - if (new_overscan && !hwp->ShowOverscan) - { - new_overscan = FALSE; - for(i = 0; i < ndef; i++) - { - if (pdefs[i].pixel == overscan) - { - if ((pdefs[i].red != 0) || - (pdefs[i].green != 0) || - (pdefs[i].blue != 0)) - { - new_overscan = TRUE; - tmp_overscan = overscan; - tmp = &(hwp->ModeReg.DAC[pdefs[i].pixel*3]); - } - break; - } - } - if (new_overscan) - { - /* - * Find a black pixel, or the nearest match. - */ - for (i=255; i >= 0; i--) - { - cmap = &(hwp->ModeReg.DAC[i*3]); - if ((cmap[0] == 0) && (cmap[1] == 0) && (cmap[2] == 0)) - { - overscan = i; - break; - } - else - { - if ((cmap[0] < tmp[0]) && - (cmap[1] < tmp[1]) && (cmap[2] < tmp[2])) - { - tmp = cmap; - tmp_overscan = i; - } - } - } - if (i < 0) - { - overscan = tmp_overscan; - } - hwp->ModeReg.Attribute[OVERSCAN] = overscan; - if (writeColormap) - { - hwp->writeAttr(hwp, OVERSCAN, overscan); - } - } - } - - if (writeColormap) - hwp->disablePalette(hwp); -} - - -void -vgaInstallColormap(pmap) - ColormapPtr pmap; -{ - ColormapPtr oldmap = GetInstalledmiColormap(pmap->pScreen); - int entries; - Pixel * ppix; - xrgb * prgb; - xColorItem *defs; - int i; - - - if (pmap == oldmap) - return; - - if ((pmap->pVisual->class | DynamicClass) == DirectColor) - entries = (pmap->pVisual->redMask | - pmap->pVisual->greenMask | - pmap->pVisual->blueMask) + 1; - else - entries = pmap->pVisual->ColormapEntries; - - ppix = (Pixel *)xalloc( entries * sizeof(Pixel)); - prgb = (xrgb *)xalloc( entries * sizeof(xrgb)); - defs = (xColorItem *)xalloc(entries * sizeof(xColorItem)); - - if ( oldmap != NOMAPYET) - WalkTree( pmap->pScreen, TellLostMap, &oldmap->mid); - - SetInstalledmiColormap(pmap->pScreen, pmap); - - for ( i=0; i<entries; i++) ppix[i] = i; - - QueryColors( pmap, entries, ppix, prgb); - - for ( i=0; i<entries; i++) /* convert xrgbs to xColorItems */ - { - defs[i].pixel = ppix[i]; - defs[i].red = prgb[i].red; - defs[i].green = prgb[i].green; - defs[i].blue = prgb[i].blue; - defs[i].flags = DoRed|DoGreen|DoBlue; - } - pmap->pScreen->StoreColors(pmap, entries, defs); - - WalkTree(pmap->pScreen, TellGainedMap, &pmap->mid); - - xfree(ppix); - xfree(prgb); - xfree(defs); -} - - -void -vgaUninstallColormap(pmap) - ColormapPtr pmap; -{ - - ColormapPtr defColormap; - - if ( pmap != GetInstalledmiColormap(pmap->pScreen)) - return; - - dixLookupResourceByType((pointer *)&defColormap, pmap->pScreen->defColormap, - RT_COLORMAP, serverClient, DixInstallAccess); - - if (defColormap == GetInstalledmiColormap(pmap->pScreen)) - return; - - (*pmap->pScreen->InstallColormap) (defColormap); -} - - -void -vgaHandleColormaps(ScreenPtr pScreen, ScrnInfoPtr scrnp) -{ - if (scrnp->bitsPerPixel > 1) { - if (scrnp->bitsPerPixel <= 8) { /* For 8bpp SVGA and VGA16 */ - pScreen->InstallColormap = vgaInstallColormap; - pScreen->UninstallColormap = vgaUninstallColormap; - pScreen->ListInstalledColormaps = vgaListInstalledColormaps; - pScreen->StoreColors = vgaStoreColors; - } - } -} - +/*
+ * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
+ *
+ * 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, and that the name of Thomas Roell not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Thomas Roell makes no representations
+ * about the suitability of this software for any purpose. It is provided
+ * "as is" without express or implied warranty.
+ *
+ * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THOMAS ROELL 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.
+ *
+ */
+
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "windowstr.h"
+#include "compiler.h"
+#include "mipointer.h"
+#include "micmap.h"
+
+#include "xf86.h"
+#include "vgaHW.h"
+
+#include <X11/extensions/xf86dgaproto.h>
+#include "dgaproc.h"
+
+
+#define NOMAPYET (ColormapPtr) 0
+
+int
+vgaListInstalledColormaps(pScreen, pmaps)
+ ScreenPtr pScreen;
+ Colormap *pmaps;
+{
+ /* By the time we are processing requests, we can guarantee that there
+ * is always a colormap installed */
+
+ *pmaps = GetInstalledmiColormap(pScreen)->mid;
+ return(1);
+}
+
+int
+vgaGetInstalledColormaps(pScreen, pmaps)
+ ScreenPtr pScreen;
+ ColormapPtr *pmaps;
+{
+ /* By the time we are processing requests, we can guarantee that there
+ * is always a colormap installed */
+
+ *pmaps = GetInstalledmiColormap(pScreen);
+ return(1);
+}
+
+int vgaCheckColorMap(ColormapPtr pmap)
+{
+ return (pmap != GetInstalledmiColormap(pmap->pScreen));
+}
+
+
+void
+vgaStoreColors(pmap, ndef, pdefs)
+ ColormapPtr pmap;
+ int ndef;
+ xColorItem *pdefs;
+{
+ int i;
+ unsigned char *cmap, *tmp = NULL;
+ xColorItem directDefs[256];
+ Bool new_overscan = FALSE;
+ Bool writeColormap;
+
+ /* This can get called before the ScrnInfoRec is installed so we
+ can't rely on getting it with XF86SCRNINFO() */
+ int scrnIndex = pmap->pScreen->myNum;
+ ScrnInfoPtr scrninfp = xf86Screens[scrnIndex];
+ vgaHWPtr hwp = VGAHWPTR(scrninfp);
+
+ unsigned char overscan = hwp->ModeReg.Attribute[OVERSCAN];
+ unsigned char tmp_overscan = 0;
+
+ if (vgaCheckColorMap(pmap))
+ return;
+
+ if ((pmap->pVisual->class | DynamicClass) == DirectColor)
+ {
+ ndef = miExpandDirectColors (pmap, ndef, pdefs, directDefs);
+ pdefs = directDefs;
+ }
+
+ writeColormap = scrninfp->vtSema;
+ if (DGAAvailable(scrnIndex))
+ {
+ writeColormap = writeColormap ||
+ (DGAGetDirectMode(scrnIndex) &&
+ !(DGAGetFlags(scrnIndex) & XF86DGADirectColormap)) ||
+ (DGAGetFlags(scrnIndex) & XF86DGAHasColormap);
+ }
+
+ if (writeColormap)
+ hwp->enablePalette(hwp);
+
+ for(i = 0; i < ndef; i++)
+ {
+ if (pdefs[i].pixel == overscan)
+ {
+ new_overscan = TRUE;
+ }
+ cmap = &(hwp->ModeReg.DAC[pdefs[i].pixel*3]);
+ if (scrninfp->rgbBits == 8) {
+ cmap[0] = pdefs[i].red >> 8;
+ cmap[1] = pdefs[i].green >> 8;
+ cmap[2] = pdefs[i].blue >> 8;
+ }
+ else {
+ cmap[0] = pdefs[i].red >> 10;
+ cmap[1] = pdefs[i].green >> 10;
+ cmap[2] = pdefs[i].blue >> 10;
+ }
+#if 0
+ if (clgd6225Lcd)
+ {
+ /* The LCD doesn't like white */
+ if (cmap[0] == 63) cmap[0]= 62;
+ if (cmap[1] == 63) cmap[1]= 62;
+ if (cmap[2] == 63) cmap[2]= 62;
+ }
+#endif
+
+ if (writeColormap)
+ {
+ if (hwp->ShowOverscan && i == 255)
+ continue;
+ hwp->writeDacWriteAddr(hwp, pdefs[i].pixel);
+ DACDelay(hwp);
+ hwp->writeDacData(hwp, cmap[0]);
+ DACDelay(hwp);
+ hwp->writeDacData(hwp, cmap[1]);
+ DACDelay(hwp);
+ hwp->writeDacData(hwp, cmap[2]);
+ DACDelay(hwp);
+ }
+ }
+ if (new_overscan && !hwp->ShowOverscan)
+ {
+ new_overscan = FALSE;
+ for(i = 0; i < ndef; i++)
+ {
+ if (pdefs[i].pixel == overscan)
+ {
+ if ((pdefs[i].red != 0) ||
+ (pdefs[i].green != 0) ||
+ (pdefs[i].blue != 0))
+ {
+ new_overscan = TRUE;
+ tmp_overscan = overscan;
+ tmp = &(hwp->ModeReg.DAC[pdefs[i].pixel*3]);
+ }
+ break;
+ }
+ }
+ if (new_overscan)
+ {
+ /*
+ * Find a black pixel, or the nearest match.
+ */
+ for (i=255; i >= 0; i--)
+ {
+ cmap = &(hwp->ModeReg.DAC[i*3]);
+ if ((cmap[0] == 0) && (cmap[1] == 0) && (cmap[2] == 0))
+ {
+ overscan = i;
+ break;
+ }
+ else
+ {
+ if ((cmap[0] < tmp[0]) &&
+ (cmap[1] < tmp[1]) && (cmap[2] < tmp[2]))
+ {
+ tmp = cmap;
+ tmp_overscan = i;
+ }
+ }
+ }
+ if (i < 0)
+ {
+ overscan = tmp_overscan;
+ }
+ hwp->ModeReg.Attribute[OVERSCAN] = overscan;
+ if (writeColormap)
+ {
+ hwp->writeAttr(hwp, OVERSCAN, overscan);
+ }
+ }
+ }
+
+ if (writeColormap)
+ hwp->disablePalette(hwp);
+}
+
+
+void
+vgaInstallColormap(pmap)
+ ColormapPtr pmap;
+{
+ ColormapPtr oldmap = GetInstalledmiColormap(pmap->pScreen);
+ int entries;
+ Pixel * ppix;
+ xrgb * prgb;
+ xColorItem *defs;
+ int i;
+
+
+ if (pmap == oldmap)
+ return;
+
+ if ((pmap->pVisual->class | DynamicClass) == DirectColor)
+ entries = (pmap->pVisual->redMask |
+ pmap->pVisual->greenMask |
+ pmap->pVisual->blueMask) + 1;
+ else
+ entries = pmap->pVisual->ColormapEntries;
+
+ ppix = (Pixel *)malloc( entries * sizeof(Pixel));
+ prgb = (xrgb *)malloc( entries * sizeof(xrgb));
+ defs = (xColorItem *)malloc(entries * sizeof(xColorItem));
+
+ if ( oldmap != NOMAPYET)
+ WalkTree( pmap->pScreen, TellLostMap, &oldmap->mid);
+
+ SetInstalledmiColormap(pmap->pScreen, pmap);
+
+ for ( i=0; i<entries; i++) ppix[i] = i;
+
+ QueryColors(pmap, entries, ppix, prgb, serverClient);
+
+ for ( i=0; i<entries; i++) /* convert xrgbs to xColorItems */
+ {
+ defs[i].pixel = ppix[i];
+ defs[i].red = prgb[i].red;
+ defs[i].green = prgb[i].green;
+ defs[i].blue = prgb[i].blue;
+ defs[i].flags = DoRed|DoGreen|DoBlue;
+ }
+ pmap->pScreen->StoreColors(pmap, entries, defs);
+
+ WalkTree(pmap->pScreen, TellGainedMap, &pmap->mid);
+
+ free(ppix);
+ free(prgb);
+ free(defs);
+}
+
+
+void
+vgaUninstallColormap(pmap)
+ ColormapPtr pmap;
+{
+
+ ColormapPtr defColormap;
+
+ if ( pmap != GetInstalledmiColormap(pmap->pScreen))
+ return;
+
+ dixLookupResourceByType((pointer *)&defColormap, pmap->pScreen->defColormap,
+ RT_COLORMAP, serverClient, DixInstallAccess);
+
+ if (defColormap == GetInstalledmiColormap(pmap->pScreen))
+ return;
+
+ (*pmap->pScreen->InstallColormap) (defColormap);
+}
+
+
+void
+vgaHandleColormaps(ScreenPtr pScreen, ScrnInfoPtr scrnp)
+{
+ if (scrnp->bitsPerPixel > 1) {
+ if (scrnp->bitsPerPixel <= 8) { /* For 8bpp SVGA and VGA16 */
+ pScreen->InstallColormap = vgaInstallColormap;
+ pScreen->UninstallColormap = vgaUninstallColormap;
+ pScreen->ListInstalledColormaps = vgaListInstalledColormaps;
+ pScreen->StoreColors = vgaStoreColors;
+ }
+ }
+}
+
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