hw cursor is corrupted on Mach64

hw cursor is corrupted on Mach64

[Alexander Kern]

Hi,

does know anybody, what is mask layout in 

void aty_set_cursor_shape(struct fb_info *info, u8 *dst, u8 *src, unsigned int 
width)

I think, here is a corrupted mask! First scanlines are
FF FF <- seems to be correct, but the rest A5 A5 A5 A5...
And is it top - bottom or bottom - top ?

Regards Alex



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Re: hw cursor is corrupted on Mach64

[Alexander Kern]

[-- Attachment #1: Type: text/plain, Size: 929 bytes --]

This patch cures corruption of HW-cursor!

bye
Alex

Am Freitag, 21. November 2003 19:45 schrieb Alexander Kern:
> Hi,
>
> does know anybody, what is mask layout in
>
> void aty_set_cursor_shape(struct fb_info *info, u8 *dst, u8 *src, unsigned
> int width)
>
> I think, here is a corrupted mask! First scanlines are
> FF FF <- seems to be correct, but the rest A5 A5 A5 A5...
> And is it top - bottom or bottom - top ?
>
> Regards Alex
>
>
>
> -------------------------------------------------------
> This SF.net email is sponsored by: SF.net Giveback Program.
> Does SourceForge.net help you be more productive?  Does it
> help you create better code?  SHARE THE LOVE, and help us help
> YOU!  Click Here: http://sourceforge.net/donate/
> _______________________________________________
> Linux-fbdev-devel mailing list
> Linux-fbdev-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/linux-fbdev-devel

[-- Attachment #2: fbcon.patch --]
[-- Type: text/x-diff, Size: 837 bytes --]

--- fbcon.c.orig	2003-10-31 20:20:30.000000000 +0100
+++ fbcon.c	2003-11-30 21:43:24.000000000 +0100
@@ -1046,13 +1046,14 @@
                         dst = kmalloc(size, GFP_ATOMIC);
                         if (!dst)
                                 return;
+                        memset(dst, 0, size);
                         
                         cursor.set |= FB_CUR_SETSHAPE;
                         if (info->cursor.mask)
                                 kfree(info->cursor.mask);
                         info->cursor.mask = dst;
 
-                        for (i = 0; i < cur_height; i++) {
+                        for (i = 0; i < vc->vc_font.height; i++) {
                                 for (c = 0; c < s_pitch; c++)
                                         *dst++ = 0xff ^ *src++;
                         }       

Re: hw cursor is corrupted on Mach64

[James Simmons]

> does know anybody, what is mask layout in 
> 
> void aty_set_cursor_shape(struct fb_info *info, u8 *dst, u8 *src, unsigned int 
> width)
> 
> I think, here is a corrupted mask! First scanlines are
> FF FF <- seems to be correct, but the rest A5 A5 A5 A5...
> And is it top - bottom or bottom - top ?

That is correct. The cursor data area (what do you call it?) is 2 bits in 
size. The 2 bits are 

00    	Background color
01	Transparent.
10	Forground color. 
11	??

I can't remember off the top of my head.




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Re: hw cursor is corrupted on Mach64

[James Simmons]

Applied. Missed clearing the default mask.


On Sun, 30 Nov 2003, Alexander Kern wrote:

> This patch cures corruption of HW-cursor!
> 
> bye
> Alex
> 
> Am Freitag, 21. November 2003 19:45 schrieb Alexander Kern:
> > Hi,
> >
> > does know anybody, what is mask layout in
> >
> > void aty_set_cursor_shape(struct fb_info *info, u8 *dst, u8 *src, unsigned
> > int width)
> >
> > I think, here is a corrupted mask! First scanlines are
> > FF FF <- seems to be correct, but the rest A5 A5 A5 A5...
> > And is it top - bottom or bottom - top ?
> >
> > Regards Alex
> >
> >
> >
> > -------------------------------------------------------
> > This SF.net email is sponsored by: SF.net Giveback Program.
> > Does SourceForge.net help you be more productive?  Does it
> > help you create better code?  SHARE THE LOVE, and help us help
> > YOU!  Click Here: http://sourceforge.net/donate/
> > _______________________________________________
> > Linux-fbdev-devel mailing list
> > Linux-fbdev-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/linux-fbdev-devel
> 



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