diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/sun/sunCfb24.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/sun/sunCfb24.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/sun/sunCfb24.c b/nx-X11/programs/Xserver/hw/sun/sunCfb24.c new file mode 100644 index 000000000..fa3a58e85 --- /dev/null +++ b/nx-X11/programs/Xserver/hw/sun/sunCfb24.c @@ -0,0 +1,139 @@ +/* $Xorg: sunCfb24.c,v 1.4 2001/02/09 02:04:43 xorgcvs Exp $ */ + +/* + +Copyright 1994, 1998 The Open Group + +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. + +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 X +CONSORTIUM 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 Open Group 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 Open Group. + +*/ +/* $XFree86: xc/programs/Xserver/hw/sun/sunCfb24.c,v 1.2 2001/10/28 03:33:10 tsi Exp $ */ + +/* + * The CG8 is similar to the CG4 in that it has a mono plane, an enable + * plane, and a color plane. While the CG4 only has an 8-bit color + * plane the CG8 has a 24-bit color plane. + * + * If you have a CG4 you know that you can switch between the mono and + * the color screens merely by dragging the pointer off the edge of the + * screen, causing the other screen to be switched in. However this is + * the cause of some consternation on the part of those people who have + * both a CG4 and another frame buffer. + * + * Because of this problem, and some other considerations, I have chosen + * to ignore the mono plane of the CG8 in this code. + */ + +#define PSZ 32 +#include "sun.h" +#include "cfb/cfb.h" + +#define PIXPG_24BIT_COLOR 5 +#define PIXPG_24BIT_COLOR_INDEX (PIXPG_24BIT_COLOR << 25) +#define PR_FORCE_UPDATE (1 << 24) + +static void CG24UpdateColormap(pScreen, index, count, rmap, gmap, bmap) + ScreenPtr pScreen; + int index, count; + u_char *rmap, *gmap, *bmap; +{ + struct fbcmap sunCmap; + + sunCmap.index = index | PIXPG_24BIT_COLOR_INDEX | PR_FORCE_UPDATE; + sunCmap.count = count; + sunCmap.red = &rmap[index]; + sunCmap.green = &gmap[index]; + sunCmap.blue = &bmap[index]; + + if (ioctl(sunFbs[pScreen->myNum].fd, FBIOPUTCMAP, &sunCmap) == -1) + FatalError( "CG24UpdateColormap: FBIOPUTCMAP failed\n"); +} + +static void CG24StoreColors (pmap, ndef, pdefs) + ColormapPtr pmap; + int ndef; + xColorItem* pdefs; +{ + u_char rmap[256], gmap[256], bmap[256]; + SetupScreen (pmap->pScreen); + VisualPtr pVisual = pmap->pVisual; + int i; + + if (pPrivate->installedMap != NULL && pPrivate->installedMap != pmap) + return; + for (i = 0; i < 256; i++) { + rmap[i] = pmap->red[i].co.local.red >> 8; + gmap[i] = pmap->green[i].co.local.green >> 8; + bmap[i] = pmap->blue[i].co.local.blue >> 8; + } + while (ndef--) { + i = pdefs->pixel; + if (pdefs->flags & DoRed) + rmap[(i & pVisual->redMask) >> pVisual->offsetRed] = (pdefs->red >> 8); + if (pdefs->flags & DoGreen) + gmap[(i & pVisual->greenMask) >> pVisual->offsetGreen] = (pdefs->green >> 8); + if (pdefs->flags & DoBlue) + bmap[(i & pVisual->blueMask) >> pVisual->offsetBlue] = (pdefs->blue >> 8); + pdefs++; + } + CG24UpdateColormap (pmap->pScreen, 0, 256, rmap, gmap, bmap); +} + +#define CG8_COLOR_OFFSET 0x40000 + +static void CG24ScreenInit (pScreen) + ScreenPtr pScreen; +{ +#ifndef STATIC_COLOR + SetupScreen (pScreen); +#endif + int i; + + /* Make sure the overlay plane is disabled */ + for (i = 0; i < CG8_COLOR_OFFSET; i++) + sunFbs[pScreen->myNum].fb[i] = 0; + +#ifndef STATIC_COLOR + pScreen->InstallColormap = sunInstallColormap; + pScreen->UninstallColormap = sunUninstallColormap; + pScreen->ListInstalledColormaps = sunListInstalledColormaps; + pScreen->StoreColors = CG24StoreColors; + pPrivate->UpdateColormap = CG24UpdateColormap; + if (sunFlipPixels) { + Pixel pixel = pScreen->whitePixel; + pScreen->whitePixel = pScreen->blackPixel; + pScreen->blackPixel = pixel; + } +#endif +} + +Bool sunCG8Init (screen, pScreen, argc, argv) + int screen; /* what screen am I going to be */ + ScreenPtr pScreen; /* The Screen to initialize */ + int argc; /* The number of the Server's arguments. */ + char **argv; /* The arguments themselves. Don't change! */ +{ + sunFbs[screen].EnterLeave = (void (*)())NoopDDA; + return sunInitCommon (screen, pScreen, (off_t) 0, + cfb32ScreenInit, CG24ScreenInit, + cfbCreateDefColormap, sunSaveScreen, CG8_COLOR_OFFSET); +} + |