_mesa_GetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS_ARB). Must be ENUM_TO_INT.
mesa/progs/tests/texenv now lists supported compressed texture formats
correctly.
S3TC support for an older driver version. On Savage3D/IX/MX
GL_EXT_texture_compression_s3tc can't be enabled because DXT3 and DXT5
are not supported. However GL_S3_s3tc is enabled on all Savage chips.
Tested on a Savage IX and a ProSavageDDR
channels are masked (disable draw update). Bumped driver date to
reflect recent correctness fixes. The driver now passes all glean
tests except exactRGBA on both Savage4 and Savage3D-based cards.
- force emitting texAddr when the texture image changed (flush caches)
- set transparent texture color key to something improbable
(couldn't find a way to disable it completely)
- fixed texture environment modes GL_DECAL and GL_REPLACE
- made texture environment mode GL_BLEND a software fallback
- added two custom texture formats for promoting from GL_ALPHA to ARGB8888
and 4444. Since the hardware can't be made to ignore the RGB color
components, set them to 1 instead of 0. This gives the correct results
- disabled GL_EXT_texture_env_add on Savage3D/MX/IX
- map both GL_CLAMP and GL_CLAMP_TO_EDGE to hardware mode "wrap". It doesn't
match either mode exactly by the spec, so we should either fall back on both
or none. I chose the latter.
- fall back to software when s and t wrapping modes differ (hardware has only
one bit for both)
display lists. These mainly arise from edgeflag being the only
attribute no longer stored internally as a float and requiring
various special case paths to accomodate it.
- remove input/output fields, input tracking removed.
- remove state fields, the validate function now called
on every statechange.
- add an explicit 'create' function.
Add in code to build vertex program to implement current t&l state. Still
disabled, but turn on with a #define in t_vp_build.h.
