Have you tried changing your texture data format to use GL_BGRA and/or GL_UNSIGNED_INT_8_8_8_8_REV? Between them you may be able to set the texture data without the copy or byte swapping.
On 4/19/05, Jay Summet <[EMAIL PROTECTED]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > > imlib2 appears to store image data internally in ARGB format, which you can > get > a pointer to with a call such as: > unsigned int *pImageData = imlib_image_get_data(); > > OpenGL glTexImage2D() function wants data in RGBA format. > > You can do a manual conversion of each and every pixel with a double for loop > enclosing the following: > > ~ GLdata[offset] = (pImageData[img_offset] >> 16) & 0xff; > ~ GLdata[offset + 1] = (pImageData[img_offset] >> 8) & 0xff; > ~ GLdata[offset + 2] = pImageData[img_offset] & 0xff; > ~ GLdata[offset + 3] = (pImageData[img_offset] >> 24) & 0xff; > > But this is slow. > > Is there a better (faster) way to convert an imlib2 image to an OpenGL > texture? > > Thanks, > Jay > > I'm basically looking to load lots of images in various formats and render > them > as OpenGL textures, I don't think I'll need all of imlib2's image > compositing/blending functionality, so perhaps another library would be a > better > choice? Suggestions? > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.4 (GNU/Linux) > Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org > > iQCVAwUBQmW9IbWkkhmZq4xxAQG/gwP8Cmcz1WmyVuk/qe7OhuPv6yvXFIlrXL4I > 0TMKN3mSvbgQSNC4jYqChlYs6onB01QUjfSYkmxu58M8vw4Ux7fWsaAMcCDeNILm > lubaj3qtTg/PLuiV8dONqgNA6O0yIefZOjktLz4Uc9fzUF6atng+Drq7PTBzHIhT > JU/zCqLLIpQ= > =iqD6 > -----END PGP SIGNATURE----- > > ------------------------------------------------------- > This SF.Net email is sponsored by: New Crystal Reports XI. > Version 11 adds new functionality designed to reduce time involved in > creating, integrating, and deploying reporting solutions. Free runtime info, > new features, or free trial, at: http://www.businessobjects.com/devxi/728 > _______________________________________________ > enlightenment-devel mailing list > enlightenment-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > ------------------------------------------------------- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728 _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
