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(patented) S3TC/DXTC algorithms, but adds an option to dlopen a library module
providing functions to do so. Because it uses dlopen, it is only enabled if
USE_EXTERNAL_DXTN_LIB=1 is defined (which is only in linux-dri config, so far).
It adds support for S3TC to several DRI drivers, and adds a DRI config option to
force enabling S3TC even if the software compression/decompression is
unavailable. This may allow people to use apps that require S3TC even though
they don't have a license to implement the patented material themselves, if
those apps use precompressed textures.
Ideally we would get permission from the current holder of the patents to
implement the algorithm in Mesa, at which point the dlopen mess could go away.
Until then, this allows some to run applications they couldn't otherwise, and
hopefully will provide us with more push to get the final step of getting that
permission done.
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with S3TC patch it fixes those
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ThinkTanks were tested) that was related to the recent 4 TMU changes.
Removed the un-needed TexBlendColorPipeNum field from the hardware
context.
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available units is configurable via the texture_units option.
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ARB_texture_env_combine state. Add support for
ARB_texture_env_crossbar. Combiner state is only emitted for operands
that need to be emitted for the combine operation.
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ARB_texture_env_combine state.
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array, texObj->Image[face][level].
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(build tested, but not physically tested)
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