vga color

vga color

[Zhao, Yunfeng]

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Against latest commits I found that the colors on the windows guest
become weird.
For example, blue color has changed to red.
Is there any change on vga of qemu?

Thanks
Yunfeng

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Re: vga color

[Avi Kivity]

Zhao, Yunfeng wrote:
> Against latest commits I found that the colors on the windows guest
> become weird.
> For example, blue color has changed to red.
> Is there any change on vga of qemu?
>
>   

Yes, I merged qemu-cvs and got some surprises.

This doesn't appear on all machines.  Can you post the output of 
'xdpyinfo' on the affected machine?

-- 
Any sufficiently difficult bug is indistinguishable from a feature.


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Re: vga color

[Zhao, Yunfeng]

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All our machines for KVM testing have the problem.
I attached the output of "xdpyinfo" on one of them.

Thanks
Yunfeng

>-----Original Message-----
>From: Avi Kivity [mailto:avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org]
>Sent: 2007年10月8日 16:15
>To: Zhao, Yunfeng
>Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>Subject: Re: [kvm-devel] vga color
>
>Zhao, Yunfeng wrote:
>> Against latest commits I found that the colors on the windows guest
>> become weird.
>> For example, blue color has changed to red.
>> Is there any change on vga of qemu?
>>
>>
>
>Yes, I merged qemu-cvs and got some surprises.
>
>This doesn't appear on all machines.  Can you post the output of
>'xdpyinfo' on the affected machine?
>
>--
>Any sufficiently difficult bug is indistinguishable from a feature.

[-- Attachment #2: Untitled.txt --]
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From: root [root@vt-px5.tsp.org]
Sent: 2007Äê10ÔÂ8ÈÕÐÇÆÚÒ» 16:27

name of display:    localhost:1.0
version number:    11.0
vendor string:    The X.Org Foundation
vendor release number:    70101000
X.Org version: 7.1.1
maximum request size:  16777212 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    2
supported pixmap formats:
    depth 1, bits_per_pixel 1, scanline_pad 32
    depth 16, bits_per_pixel 16, scanline_pad 32
keycode range:    minimum 8, maximum 255
focus:  window 0x3000021, revert to Parent
number of extensions:    21
    BIG-REQUESTS
    DAMAGE
    DEC-XTRAP
    DOUBLE-BUFFER
    Extended-Visual-Information
    MIT-SCREEN-SAVER
    MIT-SHM
    MIT-SUNDRY-NONSTANDARD
    RECORD
    SECURITY
    SHAPE
    SYNC
    TOG-CUP
    VNC-EXTENSION
    X-Resource
    XC-APPGROUP
    XC-MISC
    XFIXES
    XFree86-Bigfont
    XTEST
    XVideo
default screen number:    0
number of screens:    1

screen #0:
  dimensions:    1024x768 pixels (260x195 millimeters)
  resolution:    100x100 dots per inch
  depths (2):    1, 16
  root window id:    0x25
  depth of root window:    16 planes
  number of colormaps:    minimum 1, maximum 1
  default colormap:    0x20
  default number of colormap cells:    64
  preallocated pixels:    black 0, white 65535
  options:    backing-store YES, save-unders YES
  largest cursor:    1024x768
  current input event mask:    0xfa2033
    KeyPressMask             KeyReleaseMask           EnterWindowMask          
    LeaveWindowMask          ButtonMotionMask         StructureNotifyMask      
    SubstructureNotifyMask   SubstructureRedirectMask FocusChangeMask          
    PropertyChangeMask       ColormapChangeMask       
  number of visuals:    2
  default visual id:  0x21
  visual:
    visual id:    0x21
    class:    TrueColor
    depth:    16 planes
    available colormap entries:    64 per subfield
    red, green, blue masks:    0xf800, 0x7e0, 0x1f
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x22
    class:    DirectColor
    depth:    16 planes
    available colormap entries:    64 per subfield
    red, green, blue masks:    0x3f, 0x7c0, 0xf800
    significant bits in color specification:    8 bits

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Re: vga color

[Avi Kivity]

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Zhao, Yunfeng wrote:
> All our machines for KVM testing have the problem.
> I attached the output of "xdpyinfo" on one of them.
>
>   

Please try the attached patch.


-- 
Any sufficiently difficult bug is indistinguishable from a feature.


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diff --git a/qemu/sdl.c b/qemu/sdl.c
index 02500c9..3f3b719 100644
--- a/qemu/sdl.c
+++ b/qemu/sdl.c
@@ -87,7 +87,7 @@ static void sdl_resize(DisplayState *ds, int w, int h)
     ds->data = screen->pixels;
     ds->linesize = screen->pitch;
     ds->depth = screen->format->BitsPerPixel;
-    if (screen->format->Bshift > screen->format->Rshift) {
+    if (ds->depth == 32 && screen->format->Rshift == 0) {
         ds->bgr = 1;
     } else {
         ds->bgr = 0;

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Re: vga color

[Zhao, Yunfeng]

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It works.:)
The issue disappeared after applied the patch.

Thanks
Yunfeng

>-----Original Message-----
>From: Avi Kivity [mailto:avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org]
>Sent: 2007年10月8日 17:53
>To: Zhao, Yunfeng
>Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>Subject: Re: [kvm-devel] vga color
>
>Zhao, Yunfeng wrote:
>> All our machines for KVM testing have the problem.
>> I attached the output of "xdpyinfo" on one of them.
>>
>>
>
>Please try the attached patch.
>
>
>--
>Any sufficiently difficult bug is indistinguishable from a feature.


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Re: vga color

[Avi Kivity]

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Zhao, Yunfeng wrote:
> It works.:)
> The issue disappeared after applied the patch.
>   

Thanks, I applied and pushed it.

-- 
Any sufficiently difficult bug is indistinguishable from a feature.



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