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List:       mesa3d-dev
Subject:    [Mesa3d-dev] [Bug 13395] New: glTexSubImage2D() imposes limits on
From:       bugzilla-daemon () freedesktop ! org
Date:       2007-11-26 9:35:21
Message-ID: bug-13395-598 () http ! bugs ! freedesktop ! org/
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http://bugs.freedesktop.org/show_bug.cgi?id=13395

           Summary: glTexSubImage2D() imposes limits on subtexture size
           Product: Mesa
           Version: CVS
          Platform: All
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Mesa core
        AssignedTo: mesa3d-dev@lists.sourceforge.net
        ReportedBy: jacek____@poczta.onet.pl


teximage.c:subtexture_error_check2() called in glTexSubImage2D() returns an
error code if the subimage width, length is not equal the original texture
width, length, and is not a power of 4, e.g.:

/* size must be multiple of 4 or equal to whole texture size */
if ((width & 3) && (GLuint) width != destTex->Width) { 
<Error> 
}

The OpenGL glTexSubImage2D() definition does not specify this limitation.


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