which is automatically generated to match the current texture environment
state. Introduces a new value ctx->FragmentProgram._Active which is
true when either _Enabled is true or there is such a fragment program
ready to run.
To test out on a driver running the software rasterizer, set
MESA_TEX_PROG=t in the environment. It goes without saying that performance
is lower for the software rasterizer in this mode.
a marginal speedup, but I'm not sure this has the same effect on all
hardware. Tested on Savage IX and ProSavageDDR. For experimenting with
different values see the macros at the start of savagestate.c.
_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.
