That bitmap must be pretty weird. 'file' command reports 'data', so headers must be off. Image viewer OTOH does handle the file. Best regards, Krzysztof Skrzętnicki On Thu, Jun 28, 2012 at 2:03 PM, Brandon Allbery wrote:

On Thu, Jun 28, 2012 at 7:34 AM, Alexander Foremny < alexanderforemny@gmail.com> wrote:

...

I am using bitmap-0.2 [1] to load a Bitmap file [2]. However, the following sample GHCi session fails for me.

For what it's worth, my system doesn't recognize your bitmap as a valid image file.

-- brandon s allbery allbery.b@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms

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I tested a similar GHCi session as the ones above with a Bitmap file I found in the wild and I encountered the same results for Bitmap Word8, Bitmap Word16 and other exceptions for Bitmap Word32, Bitmap Float.

readBitmap "chef.bmp" :: IO (Bitmap Word32) *** Exception: mallocForeignPtrBytes: size must be >= 0

However, there is still the possibility that this Bitmap might be corrupted either. Just thought I'd report this. Regards, Alexander Foremny 2012/6/28 Alexander Foremny :

For what it's worth I created that Bitmap file with Gimp and exported to 32 bit R G B A bitmap. I'll try another bitmap file later and report back.

2012/6/28 Krzysztof Skrzętnicki :

...

That bitmap must be pretty weird. 'file' command reports 'data', so headers must be off. Image viewer OTOH does handle the file.

Best regards, Krzysztof Skrzętnicki

On Thu, Jun 28, 2012 at 2:03 PM, Brandon Allbery wrote:

...

On Thu, Jun 28, 2012 at 7:34 AM, Alexander Foremny wrote:

...

I am using bitmap-0.2 [1] to load a Bitmap file [2]. However, the following sample GHCi session fails for me.

For what it's worth, my system doesn't recognize your bitmap as a valid image file.

-- brandon s allbery                                      allbery.b@gmail.com wandering unix systems administrator (available)     (412) 475-9364 vm/sms

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