Re: [Linux-fbdev-users] radeonfb: strange blue lines after 'setterm -inversescreen on'

[Jurriaan <thu...@xs...>]

From: Benjamin Herrenschmidt <be...@ke...>
Date: Thu, Apr 08, 2004 at 09:41:24AM +1000
> 
> > 
> > This is obviously a hack, and only works in 32-bits color. 
> > 
> > I would be interested in the view of the maintainer. If this is the
> > right solution, do you want a patch that tries to fix this?
> > 
> > Thanks everyone for mailing back-and-forth, and testing. Please test if
> > this fixes the problem on your radeon-machine as well, if possible.
> 
> I haven't done any work related to accel functions, so you
> are welcome to experiment and fix ;)
> 
> Ben.
> 
Ben, could you please push this patch into the vanilla kernel? Or better
still, in Andrew Morton's -mc tree?

It fixes the problems with 32bpp for me and other people, and also works
for me in 16bpp.

diff -Br -b -U 3 -N linux-2.6.5/drivers/video/aty/radeon_accel.c linux-2.6.5-new/drivers/video/aty/radeon_accel.c
--- linux-2.6.5/drivers/video/aty/radeon_accel.c	2004-02-18 04:58:34.000000000 +0100
+++ linux-2.6.5-new/drivers/video/aty/radeon_accel.c	2004-04-08 20:58:01.000000000 +0200
@@ -7,13 +7,33 @@
 static void radeonfb_prim_fillrect(struct radeonfb_info *rinfo, 
 				   const struct fb_fillrect *region)
 {
+	u32 color;
+
 	radeon_fifo_wait(4);  
   
 	OUTREG(DP_GUI_MASTER_CNTL,  
 		rinfo->dp_gui_master_cntl  /* contains, like GMC_DST_32BPP */
                 | GMC_BRUSH_SOLID_COLOR
                 | ROP3_P);
-	OUTREG(DP_BRUSH_FRGD_CLR, region->color);
+	switch(radeon_get_dstbpp(rinfo->depth)) {
+	        case DST_32BPP:
+			color = region->color | (region->color << 8);
+			color = color | (color << 16);
+			break;
+                /* DST_24BPP isn't implemented */
+	        case DST_16BPP:
+			color = region->color | (region->color << 11) | (region->color << 5);
+			break;
+	        case DST_15BPP:
+			color = region->color | (region->color << 10) | (region->color << 5);
+			break;
+	        case DST_8BPP:
+		default:
+			color = region->color;
+			break;
+	}
+		
+	OUTREG(DP_BRUSH_FRGD_CLR, color);
 	OUTREG(DP_WRITE_MSK, 0xffffffff);
 	OUTREG(DP_CNTL, (DST_X_LEFT_TO_RIGHT | DST_Y_TOP_TO_BOTTOM));

Thanks,
Jurriaan
-- 
Did you save your face
Did you breach your faith
        Midnight Oil - My Country
Debian (Unstable) GNU/Linux 2.6.5-mm1 2x6062 bogomips 2.76 1.66