nanogui: GrDrawImageToFit fail with PNG image with alpha layer


Previous by date: 4 Jun 2010 20:59:00 -0000 Re: GrDrawImageToFit fail with PNG image with alpha layer, Aaron J. Grier
Next by date: 4 Jun 2010 20:59:00 -0000 Re: GrDrawImageToFit fail with PNG image with alpha layer, Greg Haerr
Previous in thread: 4 Jun 2010 20:59:00 -0000 Re: GrDrawImageToFit fail with PNG image with alpha layer, Aaron J. Grier
Next in thread: 4 Jun 2010 20:59:00 -0000 Re: GrDrawImageToFit fail with PNG image with alpha layer, Greg Haerr

Subject: Re: [nanogui] GrDrawImageToFit fail with PNG image with alpha layer
From: "Greg Haerr" ####@####.####
Date: 4 Jun 2010 20:59:00 -0000
Message-Id: <103201cb0428$9a5c8a30$0300a8c0@RDP>

: > static void linear24_drawpixel(PSD psd, MWCOORD x, MWCOORD y, MWPIXELVAL 
c)
:
: and the assertion looks like:
:
: >    assert (c < psd->ncolors);
:
: It seems like the PNG buffer is read as 32 bit values, but the

What version are you running?

The git repository should not have this issue.  I am in the
process of moving to alpha-compositing support, so the
assert fails because the high byte of the RGB color value
defaults to 255 alpha, which is outside the 24-bit color
range.

Regards,

Greg 


Previous by date: 4 Jun 2010 20:59:00 -0000 Re: GrDrawImageToFit fail with PNG image with alpha layer, Aaron J. Grier
Next by date: 4 Jun 2010 20:59:00 -0000 Re: GrDrawImageToFit fail with PNG image with alpha layer, Greg Haerr
Previous in thread: 4 Jun 2010 20:59:00 -0000 Re: GrDrawImageToFit fail with PNG image with alpha layer, Aaron J. Grier
Next in thread: 4 Jun 2010 20:59:00 -0000 Re: GrDrawImageToFit fail with PNG image with alpha layer, Greg Haerr


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