diff options
Diffstat (limited to 'xserver/hw/kdrive/fbdev/fbdev.c')
| -rw-r--r-- | xserver/hw/kdrive/fbdev/fbdev.c | 892 |
1 files changed, 0 insertions, 892 deletions
diff --git a/xserver/hw/kdrive/fbdev/fbdev.c b/xserver/hw/kdrive/fbdev/fbdev.c deleted file mode 100644 index 9b69edf95..000000000 --- a/xserver/hw/kdrive/fbdev/fbdev.c +++ /dev/null @@ -1,892 +0,0 @@ -/* - * Copyright © 1999 Keith Packard - * - * 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 Keith Packard not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Keith Packard makes no - * representations about the suitability of this software for any purpose. It - * is provided "as is" without express or implied warranty. - * - * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL KEITH PACKARD 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_CONFIG_H -#include <kdrive-config.h> -#endif -#include "fbdev.h" -#include <sys/ioctl.h> - -#include <errno.h> - -const char *fbdevDevicePath = NULL; - -static Bool -fbdevInitialize(KdCardInfo * card, FbdevPriv * priv) -{ - unsigned long off; - - if (fbdevDevicePath == NULL) - fbdevDevicePath = "/dev/fb0"; - - if ((priv->fd = open(fbdevDevicePath, O_RDWR)) < 0) { - ErrorF("Error opening framebuffer %s: %s\n", - fbdevDevicePath, strerror(errno)); - return FALSE; - } - - /* quiet valgrind */ - memset(&priv->fix, '\0', sizeof(priv->fix)); - if (ioctl(priv->fd, FBIOGET_FSCREENINFO, &priv->fix) < 0) { - perror("Error with /dev/fb ioctl FIOGET_FSCREENINFO"); - close(priv->fd); - return FALSE; - } - /* quiet valgrind */ - memset(&priv->var, '\0', sizeof(priv->var)); - if (ioctl(priv->fd, FBIOGET_VSCREENINFO, &priv->var) < 0) { - perror("Error with /dev/fb ioctl FIOGET_VSCREENINFO"); - close(priv->fd); - return FALSE; - } - - priv->fb_base = (char *) mmap((caddr_t) NULL, - priv->fix.smem_len, - PROT_READ | PROT_WRITE, - MAP_SHARED, priv->fd, 0); - - if (priv->fb_base == (char *) -1) { - perror("ERROR: mmap framebuffer fails!"); - close(priv->fd); - return FALSE; - } - off = (unsigned long) priv->fix.smem_start % (unsigned long) getpagesize(); - priv->fb = priv->fb_base + off; - return TRUE; -} - -Bool -fbdevCardInit(KdCardInfo * card) -{ - FbdevPriv *priv; - - priv = (FbdevPriv *) malloc(sizeof(FbdevPriv)); - if (!priv) - return FALSE; - - if (!fbdevInitialize(card, priv)) { - free(priv); - return FALSE; - } - card->driver = priv; - - return TRUE; -} - -static Pixel -fbdevMakeContig(Pixel orig, Pixel others) -{ - Pixel low; - - low = lowbit(orig) >> 1; - while (low && (others & low) == 0) { - orig |= low; - low >>= 1; - } - return orig; -} - -static Bool -fbdevModeSupported(KdScreenInfo * screen, const KdMonitorTiming * t) -{ - return TRUE; -} - -static void -fbdevConvertMonitorTiming(const KdMonitorTiming * t, - struct fb_var_screeninfo *var) -{ - memset(var, 0, sizeof(struct fb_var_screeninfo)); - - var->xres = t->horizontal; - var->yres = t->vertical; - var->xres_virtual = t->horizontal; - var->yres_virtual = t->vertical; - var->xoffset = 0; - var->yoffset = 0; - var->pixclock = t->clock ? 1000000000 / t->clock : 0; - var->left_margin = t->hbp; - var->right_margin = t->hfp; - var->upper_margin = t->vbp; - var->lower_margin = t->vfp; - var->hsync_len = t->hblank - t->hfp - t->hbp; - var->vsync_len = t->vblank - t->vfp - t->vbp; - - var->sync = 0; - var->vmode = 0; - - if (t->hpol == KdSyncPositive) - var->sync |= FB_SYNC_HOR_HIGH_ACT; - if (t->vpol == KdSyncPositive) - var->sync |= FB_SYNC_VERT_HIGH_ACT; -} - -static Bool -fbdevScreenInitialize(KdScreenInfo * screen, FbdevScrPriv * scrpriv) -{ - FbdevPriv *priv = screen->card->driver; - Pixel allbits; - int depth; - Bool gray; - struct fb_var_screeninfo var; - const KdMonitorTiming *t; - int k; - - k = ioctl(priv->fd, FBIOGET_VSCREENINFO, &var); - - if (!screen->width || !screen->height) { - if (k >= 0) { - screen->width = var.xres; - screen->height = var.yres; - } - else { - screen->width = 1024; - screen->height = 768; - } - screen->rate = 103; /* FIXME: should get proper value from fb driver */ - } - if (!screen->fb.depth) { - if (k >= 0) - screen->fb.depth = var.bits_per_pixel; - else - screen->fb.depth = 16; - } - - if ((screen->width != var.xres) || (screen->height != var.yres)) { - t = KdFindMode(screen, fbdevModeSupported); - screen->rate = t->rate; - screen->width = t->horizontal; - screen->height = t->vertical; - - /* Now try setting the mode */ - if (k < 0 || (t->horizontal != var.xres || t->vertical != var.yres)) - fbdevConvertMonitorTiming(t, &var); - } - - var.activate = FB_ACTIVATE_NOW; - var.bits_per_pixel = screen->fb.depth; - var.nonstd = 0; - var.grayscale = 0; - - k = ioctl(priv->fd, FBIOPUT_VSCREENINFO, &var); - - if (k < 0) { - fprintf(stderr, "error: %s\n", strerror(errno)); - return FALSE; - } - - /* Re-get the "fixed" parameters since they might have changed */ - k = ioctl(priv->fd, FBIOGET_FSCREENINFO, &priv->fix); - if (k < 0) - perror("FBIOGET_FSCREENINFO"); - - /* Now get the new screeninfo */ - ioctl(priv->fd, FBIOGET_VSCREENINFO, &priv->var); - depth = priv->var.bits_per_pixel; - gray = priv->var.grayscale; - - /* Calculate fix.line_length if it's zero */ - if (!priv->fix.line_length) - priv->fix.line_length = (priv->var.xres_virtual * depth + 7) / 8; - - switch (priv->fix.visual) { - case FB_VISUAL_MONO01: - case FB_VISUAL_MONO10: - screen->fb.visuals = (1 << StaticGray); - break; - case FB_VISUAL_PSEUDOCOLOR: - screen->fb.visuals = (1 << StaticGray); - if (priv->var.bits_per_pixel == 1) { - /* Override to monochrome, to have preallocated black/white */ - priv->fix.visual = FB_VISUAL_MONO01; - } else if (gray) { - /* could also support GrayScale, but what's the point? */ - } else { - screen->fb.visuals = ((1 << StaticGray) | - (1 << GrayScale) | - (1 << StaticColor) | - (1 << PseudoColor) | - (1 << TrueColor) | (1 << DirectColor)); - } - screen->fb.blueMask = 0x00; - screen->fb.greenMask = 0x00; - screen->fb.redMask = 0x00; - break; - case FB_VISUAL_STATIC_PSEUDOCOLOR: - if (gray) { - screen->fb.visuals = (1 << StaticGray); - } - else { - screen->fb.visuals = (1 << StaticColor); - } - screen->fb.blueMask = 0x00; - screen->fb.greenMask = 0x00; - screen->fb.redMask = 0x00; - break; - case FB_VISUAL_TRUECOLOR: - case FB_VISUAL_DIRECTCOLOR: - screen->fb.visuals = (1 << TrueColor); -#define Mask(o,l) (((1 << l) - 1) << o) - screen->fb.redMask = Mask (priv->var.red.offset, priv->var.red.length); - screen->fb.greenMask = - Mask (priv->var.green.offset, priv->var.green.length); - screen->fb.blueMask = - Mask (priv->var.blue.offset, priv->var.blue.length); - - /* - * This is a kludge so that Render will work -- fill in the gaps - * in the pixel - */ - screen->fb.redMask = fbdevMakeContig(screen->fb.redMask, - screen->fb.greenMask | - screen->fb.blueMask); - - screen->fb.greenMask = fbdevMakeContig(screen->fb.greenMask, - screen->fb.redMask | - screen->fb.blueMask); - - screen->fb.blueMask = fbdevMakeContig(screen->fb.blueMask, - screen->fb.redMask | - screen->fb.greenMask); - - allbits = - screen->fb.redMask | screen->fb.greenMask | screen->fb.blueMask; - depth = 32; - while (depth && !(allbits & (1 << (depth - 1)))) - depth--; - break; - default: - return FALSE; - break; - } - screen->fb.depth = depth; - screen->fb.bitsPerPixel = priv->var.bits_per_pixel; - - scrpriv->randr = screen->randr; - - return fbdevMapFramebuffer(screen); -} - -Bool -fbdevScreenInit(KdScreenInfo * screen) -{ - FbdevScrPriv *scrpriv; - - scrpriv = calloc(1, sizeof(FbdevScrPriv)); - if (!scrpriv) - return FALSE; - screen->driver = scrpriv; - if (!fbdevScreenInitialize(screen, scrpriv)) { - screen->driver = 0; - free(scrpriv); - return FALSE; - } - return TRUE; -} - -static void * -fbdevWindowLinear(ScreenPtr pScreen, - CARD32 row, - CARD32 offset, int mode, CARD32 *size, void *closure) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - - if (!pScreenPriv->enabled) - return 0; - *size = priv->fix.line_length; - return (CARD8 *) priv->fb + row * priv->fix.line_length + offset; -} - -static void * -fbdevWindowAfb(ScreenPtr pScreen, - CARD32 row, - CARD32 offset, int mode, CARD32 *size, void *closure) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - - if (!pScreenPriv->enabled) - return 0; - /* offset to next plane */ - *size = priv->var.yres_virtual * priv->fix.line_length; - return (CARD8 *) priv->fb + row * priv->fix.line_length + offset; -} - -Bool -fbdevMapFramebuffer(KdScreenInfo * screen) -{ - FbdevScrPriv *scrpriv = screen->driver; - KdPointerMatrix m; - FbdevPriv *priv = screen->card->driver; - - if (scrpriv->randr != RR_Rotate_0 || - priv->fix.type != FB_TYPE_PACKED_PIXELS) - scrpriv->shadow = TRUE; - else - scrpriv->shadow = FALSE; - - KdComputePointerMatrix(&m, scrpriv->randr, screen->width, screen->height); - - KdSetPointerMatrix(&m); - - screen->width = priv->var.xres; - screen->height = priv->var.yres; - - if (scrpriv->shadow) { - if (!KdShadowFbAlloc(screen, - scrpriv->randr & (RR_Rotate_90 | RR_Rotate_270))) - return FALSE; - } - else { - screen->fb.byteStride = priv->fix.line_length; - screen->fb.pixelStride = (priv->fix.line_length * 8 / - priv->var.bits_per_pixel); - screen->fb.frameBuffer = (CARD8 *) (priv->fb); - } - - return TRUE; -} - -static void -fbdevSetScreenSizes(ScreenPtr pScreen) -{ - KdScreenPriv(pScreen); - KdScreenInfo *screen = pScreenPriv->screen; - FbdevScrPriv *scrpriv = screen->driver; - FbdevPriv *priv = screen->card->driver; - - if (scrpriv->randr & (RR_Rotate_0 | RR_Rotate_180)) { - pScreen->width = priv->var.xres; - pScreen->height = priv->var.yres; - pScreen->mmWidth = screen->width_mm; - pScreen->mmHeight = screen->height_mm; - } - else { - pScreen->width = priv->var.yres; - pScreen->height = priv->var.xres; - pScreen->mmWidth = screen->height_mm; - pScreen->mmHeight = screen->width_mm; - } -} - -static Bool -fbdevUnmapFramebuffer(KdScreenInfo * screen) -{ - KdShadowFbFree(screen); - return TRUE; -} - -static Bool -fbdevSetShadow(ScreenPtr pScreen) -{ - KdScreenPriv(pScreen); - KdScreenInfo *screen = pScreenPriv->screen; - FbdevScrPriv *scrpriv = screen->driver; - FbdevPriv *priv = screen->card->driver; - ShadowUpdateProc update; - ShadowWindowProc window; - int useYX = 0; - -#ifdef __arm__ - /* Use variant copy routines that always read left to right in the - shadow framebuffer. Reading vertical strips is exceptionally - slow on XScale due to cache effects. */ - useYX = 1; -#endif - - window = fbdevWindowLinear; - update = 0; - switch (priv->fix.type) { - case FB_TYPE_PACKED_PIXELS: - if (scrpriv->randr) - if (priv->var.bits_per_pixel == 16) { - switch (scrpriv->randr) { - case RR_Rotate_90: - if (useYX) - update = shadowUpdateRotate16_90YX; - else - update = shadowUpdateRotate16_90; - break; - case RR_Rotate_180: - update = shadowUpdateRotate16_180; - break; - case RR_Rotate_270: - if (useYX) - update = shadowUpdateRotate16_270YX; - else - update = shadowUpdateRotate16_270; - break; - default: - update = shadowUpdateRotate16; - break; - } - } - else - update = shadowUpdateRotatePacked; - else - update = shadowUpdatePacked; - break; - - case FB_TYPE_PLANES: - window = fbdevWindowAfb; - switch (priv->var.bits_per_pixel) { - case 4: - update = shadowUpdateAfb4; - break; - - case 8: - update = shadowUpdateAfb8; - break; - - default: - FatalError("Bitplanes with bpp %u are not yet supported\n", - priv->var.bits_per_pixel); - } - break; - - case FB_TYPE_INTERLEAVED_PLANES: - if (priv->fix.type_aux == 2) { - switch (priv->var.bits_per_pixel) { - case 4: - update = shadowUpdateIplan2p4; - break; - - case 8: - update = shadowUpdateIplan2p8; - break; - - default: - FatalError("Atari interleaved bitplanes with bpp %u are not yet supported\n", - priv->var.bits_per_pixel); - } - } else { - FatalError("Interleaved bitplanes with interleave %u are not yet supported\n", - priv->fix.type_aux); - } - break; - - case FB_TYPE_TEXT: - FatalError("Text frame buffers are not yet supported\n"); - break; - - case FB_TYPE_VGA_PLANES: - FatalError("VGA planes are not yet supported\n"); - break; - - default: - FatalError("Unsupported frame buffer type %u\n", priv->fix.type); - break; - } - - return KdShadowSet(pScreen, scrpriv->randr, update, window); -} - -#ifdef RANDR -static Bool -fbdevRandRGetInfo(ScreenPtr pScreen, Rotation * rotations) -{ - KdScreenPriv(pScreen); - KdScreenInfo *screen = pScreenPriv->screen; - FbdevScrPriv *scrpriv = screen->driver; - RRScreenSizePtr pSize; - Rotation randr; - int n; - - *rotations = RR_Rotate_All | RR_Reflect_All; - - for (n = 0; n < pScreen->numDepths; n++) - if (pScreen->allowedDepths[n].numVids) - break; - if (n == pScreen->numDepths) - return FALSE; - - pSize = RRRegisterSize(pScreen, - screen->width, - screen->height, screen->width_mm, screen->height_mm); - - randr = KdSubRotation(scrpriv->randr, screen->randr); - - RRSetCurrentConfig(pScreen, randr, 0, pSize); - - return TRUE; -} - -static Bool -fbdevRandRSetConfig(ScreenPtr pScreen, - Rotation randr, int rate, RRScreenSizePtr pSize) -{ - KdScreenPriv(pScreen); - KdScreenInfo *screen = pScreenPriv->screen; - FbdevScrPriv *scrpriv = screen->driver; - Bool wasEnabled = pScreenPriv->enabled; - FbdevScrPriv oldscr; - int oldwidth; - int oldheight; - int oldmmwidth; - int oldmmheight; - int newwidth, newheight, newmmwidth, newmmheight; - - if (screen->randr & (RR_Rotate_0 | RR_Rotate_180)) { - newwidth = pSize->width; - newheight = pSize->height; - newmmwidth = pSize->mmWidth; - newmmheight = pSize->mmHeight; - } - else { - newwidth = pSize->height; - newheight = pSize->width; - newmmwidth = pSize->mmHeight; - newmmheight = pSize->mmWidth; - } - - if (wasEnabled) - KdDisableScreen(pScreen); - - oldscr = *scrpriv; - - oldwidth = screen->width; - oldheight = screen->height; - oldmmwidth = pScreen->mmWidth; - oldmmheight = pScreen->mmHeight; - - /* - * Set new configuration - */ - - scrpriv->randr = KdAddRotation(screen->randr, randr); - pScreen->width = newwidth; - pScreen->height = newheight; - pScreen->mmWidth = newmmwidth; - pScreen->mmHeight = newmmheight; - - fbdevUnmapFramebuffer(screen); - - if (!fbdevMapFramebuffer(screen)) - goto bail4; - - KdShadowUnset(screen->pScreen); - - if (!fbdevSetShadow(screen->pScreen)) - goto bail4; - - fbdevSetScreenSizes(screen->pScreen); - - /* - * Set frame buffer mapping - */ - (*pScreen->ModifyPixmapHeader) (fbGetScreenPixmap(pScreen), - pScreen->width, - pScreen->height, - screen->fb.depth, - screen->fb.bitsPerPixel, - screen->fb.byteStride, - screen->fb.frameBuffer); - - /* set the subpixel order */ - - KdSetSubpixelOrder(pScreen, scrpriv->randr); - if (wasEnabled) - KdEnableScreen(pScreen); - - return TRUE; - - bail4: - fbdevUnmapFramebuffer(screen); - *scrpriv = oldscr; - (void) fbdevMapFramebuffer(screen); - pScreen->width = oldwidth; - pScreen->height = oldheight; - pScreen->mmWidth = oldmmwidth; - pScreen->mmHeight = oldmmheight; - - if (wasEnabled) - KdEnableScreen(pScreen); - return FALSE; -} - -static Bool -fbdevRandRInit(ScreenPtr pScreen) -{ - rrScrPrivPtr pScrPriv; - - if (!RRScreenInit(pScreen)) - return FALSE; - - pScrPriv = rrGetScrPriv(pScreen); - pScrPriv->rrGetInfo = fbdevRandRGetInfo; - pScrPriv->rrSetConfig = fbdevRandRSetConfig; - return TRUE; -} -#endif - -static Bool -fbdevCreateColormap(ColormapPtr pmap) -{ - ScreenPtr pScreen = pmap->pScreen; - - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - VisualPtr pVisual; - int i; - int nent; - xColorItem *pdefs; - - switch (priv->fix.visual) { - case FB_VISUAL_MONO01: - pScreen->whitePixel = 0; - pScreen->blackPixel = 1; - pmap->red[0].co.local.red = 65535; - pmap->red[0].co.local.green = 65535; - pmap->red[0].co.local.blue = 65535; - pmap->red[1].co.local.red = 0; - pmap->red[1].co.local.green = 0; - pmap->red[1].co.local.blue = 0; - return TRUE; - case FB_VISUAL_MONO10: - pScreen->blackPixel = 0; - pScreen->whitePixel = 1; - pmap->red[0].co.local.red = 0; - pmap->red[0].co.local.green = 0; - pmap->red[0].co.local.blue = 0; - pmap->red[1].co.local.red = 65535; - pmap->red[1].co.local.green = 65535; - pmap->red[1].co.local.blue = 65535; - return TRUE; - case FB_VISUAL_STATIC_PSEUDOCOLOR: - pVisual = pmap->pVisual; - nent = pVisual->ColormapEntries; - pdefs = xallocarray(nent, sizeof(xColorItem)); - if (!pdefs) - return FALSE; - for (i = 0; i < nent; i++) - pdefs[i].pixel = i; - fbdevGetColors(pScreen, nent, pdefs); - for (i = 0; i < nent; i++) { - pmap->red[i].co.local.red = pdefs[i].red; - pmap->red[i].co.local.green = pdefs[i].green; - pmap->red[i].co.local.blue = pdefs[i].blue; - } - free(pdefs); - return TRUE; - default: - return fbInitializeColormap(pmap); - } -} - -Bool -fbdevInitScreen(ScreenPtr pScreen) -{ - pScreen->CreateColormap = fbdevCreateColormap; - return TRUE; -} - -Bool -fbdevFinishInitScreen(ScreenPtr pScreen) -{ - if (!shadowSetup(pScreen)) - return FALSE; - -#ifdef RANDR - if (!fbdevRandRInit(pScreen)) - return FALSE; -#endif - - return TRUE; -} - -Bool -fbdevCreateResources(ScreenPtr pScreen) -{ - return fbdevSetShadow(pScreen); -} - -void -fbdevPreserve(KdCardInfo * card) -{ -} - -static int -fbdevUpdateFbColormap(FbdevPriv * priv, int minidx, int maxidx) -{ - struct fb_cmap cmap; - - cmap.start = minidx; - cmap.len = maxidx - minidx + 1; - cmap.red = &priv->red[minidx]; - cmap.green = &priv->green[minidx]; - cmap.blue = &priv->blue[minidx]; - cmap.transp = 0; - - return ioctl(priv->fd, FBIOPUTCMAP, &cmap); -} - -Bool -fbdevEnable(ScreenPtr pScreen) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - int k; - - priv->var.activate = FB_ACTIVATE_NOW | FB_CHANGE_CMAP_VBL; - - /* display it on the LCD */ - k = ioctl(priv->fd, FBIOPUT_VSCREENINFO, &priv->var); - if (k < 0) { - perror("FBIOPUT_VSCREENINFO"); - return FALSE; - } - - if (priv->fix.visual == FB_VISUAL_DIRECTCOLOR) { - int i; - - for (i = 0; - i < (1 << priv->var.red.length) || - i < (1 << priv->var.green.length) || - i < (1 << priv->var.blue.length); i++) { - priv->red[i] = i * 65535 / ((1 << priv->var.red.length) - 1); - priv->green[i] = i * 65535 / ((1 << priv->var.green.length) - 1); - priv->blue[i] = i * 65535 / ((1 << priv->var.blue.length) - 1); - } - - fbdevUpdateFbColormap(priv, 0, i); - } - return TRUE; -} - -Bool -fbdevDPMS(ScreenPtr pScreen, int mode) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - static int oldmode = -1; - - if (mode == oldmode) - return TRUE; -#ifdef FBIOPUT_POWERMODE - if (ioctl(priv->fd, FBIOPUT_POWERMODE, &mode) >= 0) { - oldmode = mode; - return TRUE; - } -#endif -#ifdef FBIOBLANK - if (ioctl(priv->fd, FBIOBLANK, mode ? mode + 1 : 0) >= 0) { - oldmode = mode; - return TRUE; - } -#endif - return FALSE; -} - -void -fbdevDisable(ScreenPtr pScreen) -{ -} - -void -fbdevRestore(KdCardInfo * card) -{ -} - -void -fbdevScreenFini(KdScreenInfo * screen) -{ -} - -void -fbdevCardFini(KdCardInfo * card) -{ - FbdevPriv *priv = card->driver; - - munmap(priv->fb_base, priv->fix.smem_len); - close(priv->fd); - free(priv); -} - -/* - * Retrieve actual colormap and return selected n entries in pdefs. - */ -void -fbdevGetColors(ScreenPtr pScreen, int n, xColorItem * pdefs) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - struct fb_cmap cmap; - int p; - int k; - int min, max; - - min = 256; - max = 0; - for (k = 0; k < n; k++) { - if (pdefs[k].pixel < min) - min = pdefs[k].pixel; - if (pdefs[k].pixel > max) - max = pdefs[k].pixel; - } - cmap.start = min; - cmap.len = max - min + 1; - cmap.red = &priv->red[min]; - cmap.green = &priv->green[min]; - cmap.blue = &priv->blue[min]; - cmap.transp = 0; - k = ioctl(priv->fd, FBIOGETCMAP, &cmap); - if (k < 0) { - perror("can't get colormap"); - return; - } - while (n--) { - p = pdefs->pixel; - pdefs->red = priv->red[p]; - pdefs->green = priv->green[p]; - pdefs->blue = priv->blue[p]; - pdefs++; - } -} - -/* - * Change colormap by updating n entries described in pdefs. - */ -void -fbdevPutColors(ScreenPtr pScreen, int n, xColorItem * pdefs) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - int p; - int min, max; - - min = 256; - max = 0; - while (n--) { - p = pdefs->pixel; - priv->red[p] = pdefs->red; - priv->green[p] = pdefs->green; - priv->blue[p] = pdefs->blue; - if (p < min) - min = p; - if (p > max) - max = p; - pdefs++; - } - - fbdevUpdateFbColormap(priv, min, max); -} |