diff options
| author | Eric Anholt <[email protected]> | 2004-10-07 23:30:29 +0000 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2004-10-07 23:30:29 +0000 |
| commit | d09209f5530e8bba78e4e0ec62b2027c588cc8f3 (patch) | |
| tree | 0c7bdde2064bcf0c880e8bf259a8ef80dbc933a0 /src/mesa/drivers/dri/common | |
| parent | 554e5a2eaf4b681b5c43b6aeb66f100a66da4a42 (diff) | |
Add Roland Scheidegger's S3TC patch. This patch does not implement the
(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.
Diffstat (limited to 'src/mesa/drivers/dri/common')
| -rw-r--r-- | src/mesa/drivers/dri/common/xmlpool.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/common/xmlpool.h b/src/mesa/drivers/dri/common/xmlpool.h index 7b8222e0a20..efd13a136ab 100644 --- a/src/mesa/drivers/dri/common/xmlpool.h +++ b/src/mesa/drivers/dri/common/xmlpool.h @@ -159,6 +159,12 @@ DRI_CONF_OPT_BEGIN(no_neg_lod_bias,bool,def) \ DRI_CONF_DESC(de,"Verbiete negativen Textur-LOD-Bias") \ DRI_CONF_OPT_END +#define DRI_CONF_FORCE_S3TC_ENABLE(def) \ +DRI_CONF_OPT_BEGIN(force_s3tc_enable,bool,def) \ + DRI_CONF_DESC(en,"enable s3tc even if software support is not available") \ + DRI_CONF_DESC(de,"Benutze s3tc auch ohne Softwareunterstuetzung") \ +DRI_CONF_OPT_END + #define DRI_CONF_COLOR_REDUCTION_ROUND 0 #define DRI_CONF_COLOR_REDUCTION_DITHER 1 #define DRI_CONF_COLOR_REDUCTION(def) \ |