mesa: Trim down PixelStorei implementation

Move _mesa_error call for INVALID_VALUE to one place.
Remove checks for previous value matching -- this was important when we
were flushing vertices before the update, but that hasn't happened for a
long time now.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Make CompressedTexSubImage errors more consistent

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
glapi: Add XML infrastructure for ARB_compressed_texture_pixel_storage

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
tests: Add new enum strings for ARB_compressed_texture_pixel_storage

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Add new pixel pack/unpack state for
ARB_compressed_texture_pixel_storage

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Emit errors for inconsistent compressed pixel store state

V2: Use bool rather than GLboolean for internal function

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Extract computation of compressed pixel store params

This logic is reusable across CompressedTex*Image* and
GetCompressedTexImage; the strides calculated will also be needed
in the PBO validation functions to ensure that the referenced range of
bytes is valid.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Compute proper strides for compressed texture pixel storage.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Add pixel storage support for GetCompressedTexImage

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Add extension enable for ARB_compressed_texture_pixel_storage

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
docs: Mark off ARB_compressed_texture_pixel_storage

.. and add to release notes for 10.3

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
i965/fs: Let the gen < 8 generator know about runtime_check_aads_emit

In gen < 6 we need to produce conditional code based on this flag when doing
framebuffer writes.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
i965/fs: Add Gen < 6 runtime checks for line antialiasing.

In Gen < 6 the hardware generates a runtime bit that indicates whether AA data
has to be sent as part of the framebuffer write SEND message. This affects the
specific case where we have setup antialiased line rendering and we render
polygons which have one face setup in GL_LINE mode (line antialiasing
will be used) and the other one in GL_FILL mode (no line antialiasing needed).

Currently we are not doing this runtime test and instead we always send AA
data, which produces incorrect rendering of the GL_FILL face of the polygon in
in the aforementioned scenario (verified in ironlake and gm45).

In Gen4 this is, likely, a regression introduced with commit 098acf6c843. In
Gen5 this has never worked properly. Gen > 5 are not affected by this.

The patch fixes the problem by adding the appropriate runtime check and
adjusting the framebuffer write message accordingly in the conflictive
scenario.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78679

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
i965: Ensure that we end instruction streams properly.

Threads must terminate with a SEND message to a particular shared function,
such as a URB write or FB write, so the instruction stream really shouldn't
ever end in an IF/ELSE/ENDIF or similar block structure.

However, if the instruction stream (incorrectly) ends in a block structure
the last block's end pointer will not be set, leading to a crash later on in
fs_live_variables::setup_def_use(). It is better to detect this earlier, so
assert on that.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
glsl: Validate aux storage qualifier combination with other qualifiers.

We've been allowing `centroid` and `sample` in all kinds of weird places
where they're not valid.

Insist that `sample` is combined with `in` or `out`;
and that `centroid` is combined with `in`, `out`, or the deprecated
`varying`.

V2: Validate this in a more sensible place. This does require an extra
case for uniform blocks members and struct members, though, since they
don't go through the normal path.

V3: Improve error message wording; eliminate redundant error generation
for inputs in VS or outputs in FS.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
docs: import the 10.1.5 release notes
docs: fix version number in 10.2.1 release notes
docs: add link to 10.1.5 on news page
i965/fs: Refactor check for potential copy propagated instructions.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
i965/fs: skip copy-propate for logical instructions with negated src entries

The negation source modifier on src registers has changed meaning in Broadwell when
used with logical operations. Don't copy propagate when negate src modifier is set
and when the destination instruction is a logical op.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>