On 18/06/2012 00:49, cal wrote:
snip
ubyte[] data = some data;
Image img = new Img!(Px.R8G8B8)(width, height, data);
Image? Img?
img.write(mypng.png);
It uses adaptive filtering, and should work with the pixel formats supported by
the image
class (except for the 16 bit ones I've just
On Thursday, 21 June 2012 at 17:58:47 UTC, Stewart Gordon wrote:
On 18/06/2012 00:49, cal wrote:
snip
ubyte[] data = some data;
Image img = new Img!(Px.R8G8B8)(width, height, data);
Image? Img?
img.write(mypng.png);
Image is the interface, Img the templated class that does all the
work.
it's not that hard to write a baseline jpeg encoder. it's not harder than
decoding.
there are many tutorials and examples online.
Am 17.06.2012, 09:55 Uhr, schrieb cal callumena...@gmail.com:
On Sunday, 17 June 2012 at 07:07:35 UTC, Philippe Sigaud wrote:
Still, I'm interested in writing
On 6/16/2012 12:10 PM, cal wrote:
I've been working on decoders for simple (baseline) JPEG and PNG's, mostly
for
my own amusement, and they seem to work ok now, so if anyone has need of
some
simple D modules to load these formats you can grab them here:
On Sunday, 17 June 2012 at 07:07:35 UTC, Philippe Sigaud wrote:
Still, I'm interested in writing a JPEG/PNG to disk from a
ubyte[3][][], or whatever.
Do you mean that you want to encode a ubyte array to disk as
JPEG/PNG? Encoding a JPEG would be a bit of work I think, the
format's kind of a
I second the request for a PNG encoder. You just saved me a lot
of trouble, as I was about to implement my own PNG loader... and
now I don't have to. ^_^ I'll glance over your code in full
sometime and see if I notice any readily apparent improvements.
cal:
I've been working on decoders for simple (baseline) JPEG and
PNG's, mostly for my own amusement, and they seem to work ok
now, so if anyone has need of some simple D modules to load
these formats you can grab them here:
https://github.com/callumenator/imaged
Suggestions on the code:
-
On Sun, Jun 17, 2012 at 9:55 AM, cal callumena...@gmail.com wrote:
On Sunday, 17 June 2012 at 07:07:35 UTC, Philippe Sigaud wrote:
Still, I'm interested in writing a JPEG/PNG to disk from a
ubyte[3][][], or whatever.
Do you mean that you want to encode a ubyte array to disk as JPEG/PNG?
Am 16.06.2012 21:10, schrieb cal:
I've been working on decoders for simple (baseline) JPEG and PNG's,
mostly for my own amusement, and they seem to work ok now, so if anyone
has need of some simple D modules to load these formats you can grab
them here:
https://github.com/callumenator/imaged
On 17/06/2012 08:55, cal wrote:
snip
If you don't care too much about compression level, you simply zlib
compress the data, write it out by image row/scanline, include
appropriate header and chunk info, and you're done.
snip
Not quite. You need to encode it by scanline, add the filter byte
On Sun, Jun 17, 2012 at 3:25 PM, Stewart Gordon smjg_1...@yahoo.com wrote:
FWIW a while ago I wrote a simple experimental program that generates an
image and encodes it as a PNG. And I've just tweaked it and updated it to
D2 (attached). It supports only truecolour with 8 bits per sample, but
I have a simple png writer too if that's of use to you
https://github.com/adamdruppe/misc-stuff-including-D-programming-language-web-stuff
image.d and png.d. Somewhat suboptimal to use, since I
ported some of my old C code almost directly to it, and it
still works like C.
On Sunday, 17 June 2012 at 12:15:36 UTC, bearophile wrote:
Suggestions on the code:
- Try to use final switches.
- switch cases don't need (), so instead of case(foo): write
case foo:
- Try to add const/immutable/pure/nothrow where possible.
Bye,
bearophile
Problem with final switches in
On Sunday, 17 June 2012 at 12:35:41 UTC, David wrote:
Cool so I don't need to use my stb_image binding (
https://bitbucket.org/dav1d/gl-utils/src/0b97f77c14d7/stb_image
) anylonger!
I used stb_image with C++ opengl projects, and it was great.
stb_truetype is another gem, I would love to
On 17/06/2012 14:38, Philippe Sigaud wrote:
On Sun, Jun 17, 2012 at 3:25 PM, Stewart Gordon smjg_1...@yahoo.com wrote:
FWIW a while ago I wrote a simple experimental program that generates an
image and encodes it as a PNG. And I've just tweaked it and updated it to
D2 (attached). It supports
On Sunday, 17 June 2012 at 23:17:54 UTC, Stewart Gordon wrote:
You two should fuse it into one module, to give us
loading/writing.
That would be quite cool.
I don't know how much of the code will need rewriting in order
to support interlacing or all PNG colour types/depths.
But I also
On Sunday, 17 June 2012 at 20:10:28 UTC, cal wrote:
though I have worlds of trouble with const-ness, I will
endeavour to add those guarantees :)
What I usually do, unless it's just an obvious case, is write
code without concern for const-ness, then write a thorough test
and step through one
On 6/16/2012 12:10 PM, cal wrote:
I've been working on decoders for simple (baseline) JPEG and PNG's, mostly for
my own amusement, and they seem to work ok now, so if anyone has need of some
simple D modules to load these formats you can grab them here:
https://github.com/callumenator/imaged
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