Handle the loader returning a fake front-buffer. Since the driver
never specifically requests a fake front-buffer, the driver assumes
that it will never receive both a fake and a real front-buffer.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@redhat.com>
Assume that the front-buffer exists even if the server didn't tell the
client that it exists.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@redhat.com>
Track two flags: whether or not front-buffer rendering is currently
enabled and whether or not front-buffer rendering has been enabled
since the last glFlush. If the second flag is set, the front-buffer
is flushed via a loader call back. If the first flag is cleared, the
second flag is cleared at this time.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@redhat.com>
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...
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*.
