[U-Boot] Uboot bitmap utility

[U-Boot] Uboot bitmap utility

[Steven Zedeck]

Hi,
It seems that UBoot needs two data structures to display a bitmap in the
framebuffer. Is there a utility that converts a Windows bitmap (BMP?) file
and creates the 2 data structures that I can embedd in my code?

Thanks,
Steve
-- 
View this message in context: http://www.nabble.com/Uboot-bitmap-utility-tp23217619p23217619.html
Sent from the Uboot - Users mailing list archive at Nabble.com.

[U-Boot] Uboot bitmap utility

[Steven Zedeck]

I'm referring to the palatte and bitmap structs.
thanks again,
Steve

Steven Zedeck wrote:
> 
> Hi,
> It seems that UBoot needs two data structures to display a bitmap in the
> framebuffer. Is there a utility that converts a Windows bitmap (BMP?) file
> and creates the 2 data structures that I can embedd in my code?
> 
> Thanks,
> Steve
> 

-- 
View this message in context: http://www.nabble.com/Uboot-bitmap-utility-tp23217619p23217700.html
Sent from the Uboot - Users mailing list archive at Nabble.com.

[U-Boot] Uboot bitmap utility

[Wolfgang Denk]

Dear Steven Zedeck,

In message <23217619.post@talk.nabble.com> you wrote:
> 
> It seems that UBoot needs two data structures to display a bitmap in the
> framebuffer. Is there a utility that converts a Windows bitmap (BMP?) file
> and creates the 2 data structures that I can embedd in my code?

What are you talking about? The "bmp" cpmmand takes a standard bitmap
file and displays it. No separate "two data structures" are needed.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
A man either lives life as it happens to him, meets  it  head-on  and
licks it, or he turns his back on it and starts to wither away.
	-- Dr. Boyce, "The Menagerie" ("The Cage"), stardate unknown

[U-Boot] Uboot bitmap utility

[Wolfgang Denk]

Dear Steven Zedeck,

In message <23217700.post@talk.nabble.com> you wrote:
> 
> I'm referring to the palatte and bitmap structs.
> thanks again,

Are you talking about the logo support? Noite that this is different
from plain bitmap support.

> > It seems that UBoot needs two data structures to display a bitmap in the
> > framebuffer. Is there a utility that converts a Windows bitmap (BMP?) file
> > and creates the 2 data structures that I can embedd in my code?

Did you have a look at what U-Boot is doing? For example, how it uses
the tools in the (he!) tools/ directory, for example tools/bmp_logo ?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
HR Manager to job candidate "I see you've had no  computer  training.
Although  that  qualifies  you  for upper management, it means you're
under-qualified for our entry level positions."

[U-Boot] Uboot bitmap utility

[Steven Zedeck]

Wolfgang,
Yes, I do see what U-boot is doing. I looked at bmp_logo.c and its output.
It seems that the color palette entries are all 16 bits (unsigned short).
For my application, I have 24 bit color, which expects each pixel to be 32
bits, of which only 24 bits are used. So the palette, I assume, should be
unsigned longs for each color entry. Correct or am I missing something?

Did I interpret the code correctly? Does it expect 16 bits per color?
Thanks,
Steve
-----

wd wrote:
> 
> Dear Steven Zedeck,
> 
> In message <23217700.post@talk.nabble.com> you wrote:
>> 
>> I'm referring to the palatte and bitmap structs.
>> thanks again,
> 
> Are you talking about the logo support? Noite that this is different
> from plain bitmap support.
> 
>> > It seems that UBoot needs two data structures to display a bitmap in
>> the
>> > framebuffer. Is there a utility that converts a Windows bitmap (BMP?)
>> file
>> > and creates the 2 data structures that I can embedd in my code?
> 
> Did you have a look at what U-Boot is doing? For example, how it uses
> the tools in the (he!) tools/ directory, for example tools/bmp_logo ?
> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> HR Manager to job candidate "I see you've had no  computer  training.
> Although  that  qualifies  you  for upper management, it means you're
> under-qualified for our entry level positions."
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
> 
> 

-- 
View this message in context: http://www.nabble.com/Uboot-bitmap-utility-tp23217619p23265072.html
Sent from the Uboot - Users mailing list archive at Nabble.com.

[U-Boot] Uboot bitmap utility

[Detlev Zundel]

Hi Steven,

> Yes, I do see what U-boot is doing. I looked at bmp_logo.c and its output.
> It seems that the color palette entries are all 16 bits (unsigned short).

To synch up - you are trying to use the 'logo_plot' code from
drivers/video/cfb_console.c, right?

> For my application, I have 24 bit color, which expects each pixel to be 32
> bits, of which only 24 bits are used. So the palette, I assume, should be
> unsigned longs for each color entry. Correct or am I missing something?

Rather than changing this code, why don't you switch to the bmp routines
(common/cmd_bmp.c + (one option) common/lcd.c) which recently got
support for 16bpp displays?  It may be easier to add 32-bit support
here...

> Did I interpret the code correctly? Does it expect 16 bits per color?

It seems so..

Cheers
  Detlev

-- 
... does Linux have a better [security] track record than MS? Damn right it
does. We've had fewer problems, and I think there are more people out there
standing up for what's right anyway. Less PR people deathly afraid of rocking
the boat. Better technology, and fewer horrid design mistakes. [Linus Torvalds]
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de

[U-Boot] Uboot bitmap utility

[Steven Zedeck]

Wolfgang,
I resolved my issue. I am now able to write bitmaps to the framebuffer.
Thanks,
Steve
-----

Steven Zedeck wrote:
> 
> Wolfgang,
> Yes, I do see what U-boot is doing. I looked at bmp_logo.c and its output.
> It seems that the color palette entries are all 16 bits (unsigned short).
> For my application, I have 24 bit color, which expects each pixel to be 32
> bits, of which only 24 bits are used. So the palette, I assume, should be
> unsigned longs for each color entry. Correct or am I missing something?
> 
> Did I interpret the code correctly? Does it expect 16 bits per color?
> Thanks,
> Steve
> -----
> 
> wd wrote:
>> 
>> Dear Steven Zedeck,
>> 
>> In message <23217700.post@talk.nabble.com> you wrote:
>>> 
>>> I'm referring to the palatte and bitmap structs.
>>> thanks again,
>> 
>> Are you talking about the logo support? Noite that this is different
>> from plain bitmap support.
>> 
>>> > It seems that UBoot needs two data structures to display a bitmap in
>>> the
>>> > framebuffer. Is there a utility that converts a Windows bitmap (BMP?)
>>> file
>>> > and creates the 2 data structures that I can embedd in my code?
>> 
>> Did you have a look at what U-Boot is doing? For example, how it uses
>> the tools in the (he!) tools/ directory, for example tools/bmp_logo ?
>> 
>> Best regards,
>> 
>> Wolfgang Denk
>> 
>> -- 
>> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
>> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
>> HR Manager to job candidate "I see you've had no  computer  training.
>> Although  that  qualifies  you  for upper management, it means you're
>> under-qualified for our entry level positions."
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot at lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot
>> 
>> 
> 
> 

-- 
View this message in context: http://www.nabble.com/Uboot-bitmap-utility-tp23217619p23652400.html
Sent from the Uboot - Users mailing list archive at Nabble.com.