[PATCH] fbdev: cirrusfb: Driver cleanup and bug fixes

- pseudo_palette is only 16 entries long

- the pseudo_palette, if using the generic drawing functions, must always be
  u32 regardless of bpp

- the fillrect accelerator is using region->color regardless of the visual.
  region->color is the index to the pseudo_palette if visual is truecolor

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index 2858c5c..e0dbdfc 100644 (file)
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -404,7 +404,7 @@ struct cirrusfb_info {
        struct cirrusfb_regs currentmode;
        int blank_mode;
 
-       u32     pseudo_palette[17];
+       u32     pseudo_palette[16];
        struct { u8 red, green, blue, pad; } palette[256];
 
 #ifdef CONFIG_ZORRO
@@ -1603,14 +1603,14 @@ static int cirrusfb_setcolreg (unsigned regno, unsigned red, unsigned green,
 
                switch (info->var.bits_per_pixel) {
                        case 8:
-                               ((u8*)(info->pseudo_palette))[regno] = v;
+                               cinfo->pseudo_palette[regno] = v;
                                break;
                        case 16:
-                               ((u16*)(info->pseudo_palette))[regno] = v;
+                               cinfo->pseudo_palette[regno] = v;
                                break;
                        case 24:
                        case 32:
-                               ((u32*)(info->pseudo_palette))[regno] = v;
+                               cinfo->pseudo_palette[regno] = v;
                                break;
                }
                return 0;
@@ -2020,18 +2020,21 @@ static void cirrusfb_prim_fillrect(struct cirrusfb_info *cinfo,
                                   const struct fb_fillrect *region)
 {
        int m; /* bytes per pixel */
+       u32 color = (cinfo->info->fix.visual == FB_VISUAL_TRUECOLOR) ?
+               cinfo->pseudo_palette[region->color] : region->color;
+
        if(cinfo->info->var.bits_per_pixel == 1) {
                cirrusfb_RectFill(cinfo->regbase, cinfo->info->var.bits_per_pixel,
                                  region->dx / 8, region->dy,
                                  region->width / 8, region->height,
-                                 region->color,
+                                 color,
                                  cinfo->currentmode.line_length);
        } else {
                m = ( cinfo->info->var.bits_per_pixel + 7 ) / 8;
                cirrusfb_RectFill(cinfo->regbase, cinfo->info->var.bits_per_pixel,
                                  region->dx * m, region->dy,
                                  region->width * m, region->height,
-                                 region->color,
+                                 color,
                                  cinfo->currentmode.line_length);
        }
        return;