diff options
| author | Jamie Tittle <tigital@users.sourceforge.net> | 2005-04-12 03:34:40 +0000 |
|---|---|---|
| committer | Jamie Tittle <tigital@users.sourceforge.net> | 2005-04-12 03:34:40 +0000 |
| commit | 92968aae5d263a87ce59a987ae962df9e2f12a03 (patch) | |
| tree | a585bc6d58d8705ca94c84b6f0572881eac685b7 /README | |
| parent | f198fa87788161da7d491787cfabccc0cb63b0df (diff) | |
added colorspace message which allows us to select the destination colorspace (YUV, RGB/BGR, RGBA/BGRA); now uses GemPixUtils color conversions to centralize the code
svn path=/trunk/externals/gem2pdp/; revision=2714
Diffstat (limited to 'README')
| -rw-r--r-- | README | 12 |
1 files changed, 10 insertions, 2 deletions
@@ -1,7 +1,8 @@ *****************************************************************************
-copyleft 2003 by Yves Degoyon ( ydegoyon@free.fr )
+copyleft 2003-2005 by Yves Degoyon ( ydegoyon@free.fr )
-tarballs and updates available @ http://ydegoyon.free.fr
+tarballs and updates available @ http://ydegoyon.free.fr +osx versions available @ http://homepage.mac.com/tigital
gemp2pdp : GEM to PDP bridge
@@ -18,3 +19,10 @@ patents. *****************************************************************************
+notes: + +- now allows you to select the colorspace that pdp's yv12 image format is converted to. This means we can now request a YUV colorspace, which is computationally much faster than yv12 to RGB or RGBA (so much so that it is the default). Colorspace can be indicated on object creation (ie. [pdp2gem RGB]) or by message (ie. [colorspace YUV<) + +- now uses standardized color conversions found in GemPixUtil.cpp, which includes altivec speedups! These use formulae from http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC30 + +- please note that colorspace switching between objects is handled automatically by GEM unless specifically stated (ie. by [pix_yuv], [pix_rgba], [pix_grey])
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