aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/kdrive/fbdev
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/hw/kdrive/fbdev')
-rw-r--r--xorg-server/hw/kdrive/fbdev/fbdev.c1652
1 files changed, 826 insertions, 826 deletions
diff --git a/xorg-server/hw/kdrive/fbdev/fbdev.c b/xorg-server/hw/kdrive/fbdev/fbdev.c
index d4604ad29..b127ab89b 100644
--- a/xorg-server/hw/kdrive/fbdev/fbdev.c
+++ b/xorg-server/hw/kdrive/fbdev/fbdev.c
@@ -1,826 +1,826 @@
-/*
- * 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>
-
-extern int KdTsPhyScreen;
-
-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 *) xalloc (sizeof (FbdevPriv));
- if (!priv)
- return FALSE;
-
- if (!fbdevInitialize (card, priv))
- {
- xfree (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;
-
- switch (priv->fix.visual) {
- case FB_VISUAL_PSEUDOCOLOR:
- if (gray)
- {
- screen->fb.visuals = (1 << StaticGray);
- /* 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 = xcalloc (1, sizeof (FbdevScrPriv));
- if (!scrpriv)
- return FALSE;
- screen->driver = scrpriv;
- if (!fbdevScreenInitialize (screen, scrpriv))
- {
- screen->driver = 0;
- xfree (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;
-}
-
-Bool
-fbdevMapFramebuffer (KdScreenInfo *screen)
-{
- FbdevScrPriv *scrpriv = screen->driver;
- KdPointerMatrix m;
- FbdevPriv *priv = screen->card->driver;
-
- if (scrpriv->randr != RR_Rotate_0)
- 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;
- 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;
- 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;
-
- if (screen->randr & (RR_Rotate_0|RR_Rotate_180))
- {
- newwidth = pSize->width;
- newheight = pSize->height;
- }
- else
- {
- newwidth = pSize->height;
- newheight = pSize->width;
- }
-
- 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);
-
- 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_STATIC_PSEUDOCOLOR:
- pVisual = pmap->pVisual;
- nent = pVisual->ColormapEntries;
- pdefs = xalloc (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;
- }
- xfree (pdefs);
- return TRUE;
- default:
- return fbInitializeColormap (pmap);
- }
-}
-
-Bool
-fbdevInitScreen (ScreenPtr pScreen)
-{
-#ifdef TOUCHSCREEN
- KdTsPhyScreen = pScreen->myNum;
-#endif
-
- 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);
- xfree (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);
-}
+/*
+ * 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>
+
+extern int KdTsPhyScreen;
+
+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;
+
+ switch (priv->fix.visual) {
+ case FB_VISUAL_PSEUDOCOLOR:
+ if (gray)
+ {
+ screen->fb.visuals = (1 << StaticGray);
+ /* 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;
+}
+
+Bool
+fbdevMapFramebuffer (KdScreenInfo *screen)
+{
+ FbdevScrPriv *scrpriv = screen->driver;
+ KdPointerMatrix m;
+ FbdevPriv *priv = screen->card->driver;
+
+ if (scrpriv->randr != RR_Rotate_0)
+ 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;
+ 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;
+ 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;
+
+ if (screen->randr & (RR_Rotate_0|RR_Rotate_180))
+ {
+ newwidth = pSize->width;
+ newheight = pSize->height;
+ }
+ else
+ {
+ newwidth = pSize->height;
+ newheight = pSize->width;
+ }
+
+ 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);
+
+ 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_STATIC_PSEUDOCOLOR:
+ pVisual = pmap->pVisual;
+ nent = pVisual->ColormapEntries;
+ pdefs = malloc(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)
+{
+#ifdef TOUCHSCREEN
+ KdTsPhyScreen = pScreen->myNum;
+#endif
+
+ 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);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 08:46:53 +0000