diff options
Diffstat (limited to 'xorg-server/hw/xfree86/vgahw/vgaCmap.c')
| -rw-r--r-- | xorg-server/hw/xfree86/vgahw/vgaCmap.c | 580 |
1 files changed, 279 insertions, 301 deletions
diff --git a/xorg-server/hw/xfree86/vgahw/vgaCmap.c b/xorg-server/hw/xfree86/vgahw/vgaCmap.c index a65bb5e86..0cfabc5d6 100644 --- a/xorg-server/hw/xfree86/vgahw/vgaCmap.c +++ b/xorg-server/hw/xfree86/vgahw/vgaCmap.c @@ -1,301 +1,279 @@ -/*
- * 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;
- }
- }
-}
-
+/* + * 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; + } + } +} |