On Wed, 2009-01-07 at 14:34 +, jcup...@gmail.com wrote:
> Hi again,
>
> 2009/1/7 Luka Napotnik :
> > Here's a sample code that fails:
>
> I had a look at the docs and MagickReadImageBlob() probably isn't the
> right bit of API. It expects the data to be in a contaner format, such
> as PNG or
Hi again,
2009/1/7 Luka Napotnik :
> Here's a sample code that fails:
I had a look at the docs and MagickReadImageBlob() probably isn't the
right bit of API. It expects the data to be in a contaner format, such
as PNG or JPEG.
ConstituteImage() is probably better:
http://imagemagick.org/api/
Here's a sample code that fails:
#include
#include
#include
guchar *
pixels_pack(guchar *data,
int width,
int height)
{
/* Allocate an array of dimensions width*height for
* RGBA with 16 bits per channel.
2009/1/7 Luka Napotnik :
> I've converted the buffer to an RGBA array with 16-bits per channel. But
> loading the blob still fails. Any other ideas?
We can't tell you what's wrong if you don't show any code. You need to
post a tiny (but complete) test program. It'll only take you 30
minutes to wri
Hello again.
I've converted the buffer to an RGBA array with 16-bits per channel. But
loading the blob still fails. Any other ideas?
Greets,
Luka
Dne 06.01.2009 (tor) ob 12:03 + je jcup...@gmail.com zapisal(a):
> 2009/1/6 Luka Napotnik :
> > I'm trying to use GraphicsMagic (the successor of
2009/1/6 Luka Napotnik :
> Hum could you please tell me more about gdkpixbuf dithering functions. I
> was unable to fund such a function.
Just that it'll dither for you when drawing to the display. So if your
graphics card is 16 bits per pixel (eg. 6 bits of green, 6 red, 4 blue
or whatever), gdk
Hum could you please tell me more about gdkpixbuf dithering functions. I
was unable to fund such a function.
Greets,
Luka
Dne 06.01.2009 (tor) ob 12:06 + je jcup...@gmail.com zapisal(a):
> 2009/1/6 Luka Napotnik :
> > Well I need a dither filter for my image buffer. That's why I'm looking
> >
2009/1/6 Luka Napotnik :
> Well I need a dither filter for my image buffer. That's why I'm looking
> at GraphicsMagick.
Oh, OK, vips does not have any dithering operations. I guess you know
about GdkPixbuf's dithering?
John
___
gtk-app-devel-list mailin
2009/1/6 Luka Napotnik :
> I'm trying to use GraphicsMagic (the successor of ImageMagick) to
> manipulate a GdkPixbuf image buffer. The problem is that the program
> segfaults, probably due to the raw nature of the buffer which the Magick
> API doesn't handle very good.
> I'm opening the image buff
Hello.
Well I need a dither filter for my image buffer. That's why I'm looking
at GraphicsMagick.
Greets,
Luka
Dne 06.01.2009 (tor) ob 13:48 +0200 je Dov Grobgeld zapisal(a):
> The data of a GdkPixbuf is layed out as a continous allocated chunk of
> memory in one of the following format RGBRGBRG
The data of a GdkPixbuf is layed out as a continous allocated chunk of
memory in one of the following format RGBRGBRGB for 24-bit images, or
RGBARGBARGBA, for 32-bit images, where R,G,B,A stands for the red, green,
blue, and alpha components respectively. Lines may be also padded to
row_stride byte
Hello.
I'm trying to use GraphicsMagic (the successor of ImageMagick) to
manipulate a GdkPixbuf image buffer. The problem is that the program
segfaults, probably due to the raw nature of the buffer which the Magick
API doesn't handle very good.
I'm opening the image buffer with MagickReadImageBlob
12 matches
Mail list logo
