egl/drm: do not crash when swapping buffers without any rendering

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
i965/fs: Use instruction execution sizes when generating scratch reads/writes

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
i965/fs: Don't [un]spill multiple registers at a time in SIMD8 mode

I thought this would be a clever way to make spilling less expensive.
However, it appears that the oword read/write messages we are using for
spilling ignore the execution size and assume SIMD16 whenever working with
more than one register.

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
i965: Use the spill destination for the message header on GEN >= 7

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
i965/fs: Use correct spill offsets

Different platforms require the offset to be in different units.  However,
the generator fixes all of this up for us and only requires an offset in
bytes.  Previously, we were getting this wrong all over the place.  Some
computed/used it correctly as bytes while others treated the offset as
whole registers or computed it as bytes or bytes*2 in SIMD16 mode.  This
commit cleans all this up and makes us properly treat it as bytes
everywhere.

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
i965/fs: Make scratch write instructions use the correct execution size

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
i965/fs: Don't set dependency hints on instructions with spilled destinations

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
gles2: Update gl2ext.h to revision 28335

The main incentive to do this is to get the defines for the
GL_KHR_context_flush_control extension.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Add support for the GL_KHR_context_flush_control extension

The GL side of this extension just provides an accessor via glGetIntegerv for
the value of GL_CONTEXT_RELEASE_BEHAVIOR so it is trivial to implement. There
is a constant on the context for the value of the enum which is initialised to
GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH. The extension is always enabled because it
doesn't need any driver interaction to retrieve the value.

If the value of the enum is anything but FLUSH then _mesa_make_current will
now refrain from calling _mesa_flush. This should only affect drivers that
explicitly change the enum to a non-default value.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
docs: Update GL3.txt and relnotes for GL_KHR_context_flush_control
r600g: Implement sm5 interpolation functions

Requires evergreen/cayman

Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
r600g: Implement sm5 UBO/sampler indexing

Caveat: Shaders using UBO/sampler indexing will
not be optimized by SB, due to SB not currently
supporting the necessary CF_INDEX_[01] index
registers.

Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
r600g: fix polygon mode for points and lines and point/line fill modes

Fixes piglit/polygon-mode-offset.

Cc: 10.2 10.3 mesa-stable@lists.freedesktop.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
radeonsi: fix polygon mode for points and lines and point/line fill modes

Fixes piglit/polygon-mode-offset.

Cc: 10.2 10.3 mesa-stable@lists.freedesktop.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
radeonsi: fix incorrect index buffer max size for lowered 8-bit indices

Cc: 10.2 10.3 mesa-stable@lists.freedesktop.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
r300g: only set clip_halfz for chips with HW TCL

I forgot that we cannot emit vertex shader state on a chip without VS.
In such a case, clip_halfz is handled by the Draw module.
r300g/vdpau: enable again

Signed-off-by: David Heidelberger <david.heidelberger@ixit.cz>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Revert "st/mesa: set MaxUnrollIterations = 255"

This reverts commit 20836c81851e0df29a8ee9c86e5e5388738c840b.

255 is a huge number. If you have a loop with 255 iterations, unrolling it
will exceed the SM3 instruction limit. Let's use the default again.

The comment about a SM3 limit doesn't make sense. For SM3, we generally
want 32 (default) or a lower number due to the SM3 instruction limit, which
is 512 instructions. For SM4, we can try higher numbers if needed, but
some shaders can end up being pretty huge and shader compilation can take
more time.

This fixes a shader compile failure on R500/SM3. Reported on IRC.

Cc: 10.2 10.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
tgsi/ureg: add ureg_UARL shortcut (v2)

v2: moved in in same order as in p_shader_tokens (thanks Brian)
winsys/sw/wrapper: hook up is_displaytarget_format_supported

Gallium Nine make use of it, because we wrapping around sw screen.