Corbin Simpson schrieb: > After re-reading ARB_texture_compression, it does seem like it is > legal for extensions such as EXT_texture_compression_s3tc to fall > back, using a basic mechanism: glGetTexLevelParameter can return > GL_FALSE for GL_TEXTURE_COMPRESSED_ARB (now GL_TEXTURE_COMPRESSED) if > the texture could not successfully be compressed. Issue (10) of > ARB_texture_compression deals with this explicitly:
Yes, ARB_texture_compression allows to support decompression only. That could probably be used to have decompression support for the S3TC formats in Mesa. However, this does mean that EXT_texture_compression_s3tc would be supported, since EXT_texture_compression_s3tc does require support for encoding and the wording in ARB_texture_compression does not change that. Philipp ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
