Render results are only visible when the render cache is flushed.
softpipe_is_texture_referenced must reflect that or transfers to/from the
textures bound in the framebuffer won't be proceeded of the necessary
flush, causing transfer data to be outdated/clobbered.
This fixes conform drawpix test with softpipe.
When the -arb option is specified we use GL_ARB_framebuffer_object intead
of GL_EXT_framebuffer_object.
For some vendors' OpenGL it's important to call the ARB entrypoints
instead of the EXT entrypoints to get correct behaviour. Use some
function pointer tricks to do this (instead of GLEW).
Before, if a vertex shader's outputs didn't exactly match a fragment
shader's inputs we could wind up with invalid TGSI shader declarations.
For example:
Before patch:
DCL OUT[0], POSITION
DCL OUT[1], COLOR[1]
DCL OUT[2], GENERIC[0]
DCL OUT[3], GENERIC[0] <- note duplicate [0]
DCL OUT[4], GENERIC[2]
After patch:
DCL OUT[0], POSITION
DCL OUT[1], COLOR[1]
DCL OUT[2], GENERIC[0]
DCL OUT[3], GENERIC[1]
DCL OUT[4], GENERIC[2]
Actually, after spotting this problem, I realized this is unreachable
code. However don't bother to enable this fast path now, given the normal
path is working just fine.
Add _NEW_PROGRAM_CONSTANTS to _SWRAST_NEW_DERIVED.
This makes sure that we update the fragment shader's constants when state
vars (such as point size) changes.
Fixes the progs/glsl/points.c demo.
The existing implementation was already implemented on software, but relied
on the pipe driver to always support the R16G16B16A16_SNORM format. This
patch eliminates that, without prejudice against a future hardware-only
implementation.
It also avoids some of the short <-> float conversions, and only does a read
transfer of the color buffer on GL_RETURN if absolutely necessary.
Fix mklib to deal with NOPREFIX and use --enable-auto-image-base for cygwin
Teach configure.ac some basic facts about cygwin
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
It's legal for ARB_vertex_program programs to not write to result.position.
The results are undefined in that case. This assertion was causing us to
abort/exit though.
The recent increase ST_MAX_SHADER_TOKENS to 8K causes stack overflows on
windows.
Failure to allocate is not being propagated to the caller. This is not
a regression since the previous _mesa_malloc result wasn't being
checked as well. Unfortunately it is not easy to fix, as the callers of
these functions do not have failure propagation mechanism either, and
so on. So leaving a just fixme note for now.
We were adding references to the input arrays, but failing to drop
them on destruction. This could lead to a 64kb buffer being leaked
each context destruction.
