Re: [PATCH] Tile Blitting

[Antonino Daplas <adaplas@pol.net>]

On Sun, 2003-02-23 at 15:43, Antonino Daplas wrote:
> On Sun, 2003-02-23 at 12:42, Antonino Daplas wrote:
> 
> > Here's an updated Tile Blitting patch.  The feature is selectable via
> > kernel configuration (under Advanced Low Level Driver Features). 
> > Currently, it detects the presence of info->tileops but bit setting
> > info->caps should be better.
> 
> Stupid me :-(, the patch does not work properly.  Try this one instead.
> 

The optimization logic is flawed :-(  Please apply this patch also.

Tony

diff -Naur linux-2.5.61-fbdev/drivers/video/console/fbcon_accelops.c linux-2.5.61/drivers/video/console/fbcon_accelops.c
--- linux-2.5.61-fbdev/drivers/video/console/fbcon_accelops.c	2003-02-23 18:47:53.000000000 +0800
+++ linux-2.5.61/drivers/video/console/fbcon_accelops.c	2003-02-23 18:52:23.000000000 +0800
@@ -113,13 +113,16 @@
 					src++;
 				}
 				dst[idx] &= mask;
-				dst[idx] |= *src++ >> shift_low;
+				dst[idx] |= *src >> shift_low;
+ 				if (shift_high < mod)
+					dst[idx+1] = *src << shift_high;
+				src++;
 				dst += pitch;
 			}
 			shift_low += mod;
+			dst0 += (shift_low >= 8) ? width : width - 1;
 			shift_low &= 7;
 			shift_high = 8 - shift_low;
-			dst0 += (shift_low) ? width - 1 : width;
 		}
 		
 		info->fbops->fb_imageblit(info, image);



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