Subclassing the window is invasive: we might call an old window proc even
after it was removed. Glut and another bug just in the wrong time was
provoking this. Hooks don't have this problem.
This fixes the random results that were seen when fetching a constant
inside an IF/ELSE clause. Disabling the execution mask ensures that all
the components of the register are written.
Before, the instruction's CondUpdate field was mistakenly effecting the
constant-fetch operation.
Fixes progs/glsl/bump.c demo. But there are some other issues related
to condition flags and IF/ELSE that need investigation...
HW TCL path currently assumed fog, WPOS order. The order was inverted for SW TCL path.
This hopefully fixes rest of fog and WPOS related bugs.
Additionally fix some indentation, don't route unnecessary components of fog coordinates for performance reasons and simplify vertex
attribute emitting for SW TCL path.
Fix wrong attribute emit and revert to previous behaviour of calculating VAP_OUT_VTX_FMT_1 register value.
We can't use r300VAPOutputCntl1 function because it assumes that all texture coords have 4 components and that is the case for HW TCL
path, but not for SW TCL.
For testing, it's very useful to be able to test on a debug build,
while suppressing the debug messages (messages that are by default
suppressed in a release build), in order to see the same behavior
that users of release builds will see.
For example, the "piglit" test suite will flag an error on
programs that produce unexpected output, which means that a
debug build will always fail due to the extra debug messages.
This change introduces a new value to the MESA_DEBUG
environment variable. In a debug build, explicitly setting MESA_DEBUG
to "0" will suppress all debug messages (both from _mesa_debug() and
from _mesa_warning()). (The former behavior was that debug
messages were never suppressed in debug builds.)
Behavior of non-debug builds has not changed. In such a build,
_mesa_debug() messages are always suppressed, and _mesa_warning()
messages will be suppressed unless MESA_DEBUG is set *to any value*.
