i965/fs: initialize src as reg_undef for texture opcodes on Gen5/6.

Commit 07af0ab changed fs_inst to have 0 sources for texture opcodes
in emit_texture_gen5 (Ironlake, Sandybrige) while fs_generator still
uses a single source from brw_reg struct. Patch sets src as reg_undef
which matches the behavior before the constructor got changed.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79534

egl/dri2: do not leak dri2_dpy->driver_name

Originally all hardware drivers duplicate the driver_name string
from an external source, while for the software rasterizer we set
it to "swrast". Follow the example set by hw drivers this way
we can free the string at dri2_terminate().

v2: Use strdup over strndup. Suggested by Ilia Mirkin.
v3: Handle platform_drm in a similar manner. Cleanup swrast
driver_name in error path.

Cc: Chia-I Wu <olv@lunarg.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

egl/dri2/x11: use standard strndup function

Using a custom version of the function brings no benefit.

Cc: Chad Versace <chad.versace@linux.intel.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

android, dricore: undefined reference to _mesa_streaming_load_memcpy

_mesa_streaming_load_memcpy is defined in main/streaming-load-memcpy.c
I'm adding it to the dricore lib

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

android, mesa_gen_matypes: pull in timespec POSIX definition

This fixes:
  include/c11/threads_posix.h: In function 'cnd_timedwait':
  include/c11/threads_posix.h:140:21: error: storage size of 'abs_time' isn't known

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

android, egl: typo dri2_fallback_pixmap_surface -> dri2_fallback_create_pixmap_surface

I used commit bc8b07a6 as reference, and only the droid_display_vtbl had this issue.

This fixes:
src/egl/drivers/dri2/platform_android.c:641:29:
  error: 'dri2_fallback_pixmap_surface' undeclared here (not in a function)

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

android, egl: add correct drm include for libmesa_egl_dri2

Fixes:
  src/egl/drivers/dri2/platform_android.c:38:
  include/GL/internal/dri_interface.h:51:17:
    fatal error: drm.h: No such file or directory

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

android: add src/gallium/auxiliary as include path for libmesa_dricore

This fixes:
In file included from
/home/adrian/workspace/mesa/mesa-master.git/src/mesa/vbo/vbo_exec_api.c:445:0:
/home/adrian/workspace/mesa/mesa-master.git/src/mesa/vbo/vbo_attrib_tmp.h:28:38:
fatal error: util/u_format_r11g11b10f.h: No such file or directory

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

android: add libloader to libGLES_mesa and libmesa_egl_dri2

This fixes
  src/egl/drivers/dri2/platform_android.c:664: error: undefined reference to 'loader_set_logger'
  src/egl/drivers/dri2/platform_android.c:678: error: undefined reference to 'loader_get_driver_for_fd'

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

android: adapt to the megadriver mechanism

Fixes linker error:
  ld:
  .../libmesa_dri_common_intermediates/libmesa_dri_common.a(dri_util.o):
    in function globalDriverAPI:dri_util.c(.data.rel+0x0): error:
    undefined reference to 'driDriverAPI'

As an example, you can see that mesa_dri_drivers
also uses common/libmegadriver_stub (src/mesa/drivers/dri/Makefile.am)

The _stub part might be confusing, but
it actually provides the dri-driver shared lib constructor,
megadriver_stub_init, which will later on load the real
platform dependent part and call
l __driDriverGetExtensions_<platform>

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

add megadriver_stub_FILES

So that android part can also use $(megadriver_stub_FILES)

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

scons: remove dri-i915 build target

Unmaintained and broken.

Cc: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Jakob Bornecrantz <jakob@vmware.com>

configure: error out when building opencl without LLVM

Cc: Tom Stellard <thomas.stellard@amd.com>
Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

i965/disasm: Properly debug negate source modifier for logical instructions

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

i965/vec4: 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>

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>

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>

docs: add link to 10.1.5 on news page

docs: fix version number in 10.2.1 release notes

docs: import the 10.1.5 release notes

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>

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>

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/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>

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>

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>

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: 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: 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: 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: 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>

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>

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>

mesa: Make CompressedTexSubImage errors more consistent

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

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/main: Prevent sefgault on glGetIntegerv(GL_ATOMIC_COUNTER_BUFFER_BINDING).

A recent ApiTrace change, that tries to dump more buffer state
causes Mesa from my distro (10.1.4) to segfaults here.

I haven't actually confirm this fixes it (I can't repro on master),
but it seems a good idea to be defensive here anyway.

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

Revert "i965: Move brw_land_fwd_jump() to compilation unit of its use."

This reverts commit f3cb2e6ed7059b22752a6b7d7a98c07ba6b5552e.

brw_land_fwd_jump() is convenient wherever we produce JMPI instructions
and we will use JMPI to implement framebuffer writes that involve line
antialiasing in gen < 6.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Fix else and brace placement in brw_eu_emit.c.

I'm making a lot of changes to this area, and I figured I may as well
not conflate these trivial changes.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

i965: Drop the remaining default predication whacking.

With my earlier cleaning in place (see git log brw_eu_emit.c), nothing
relies on the instruction emitters for IF/WHILE/JMPI disabling
predication.  Drop it in favor of making callers do the right thing
explicitly.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

i965/sf: Use brw_set_default_predicate_control().

This is a bit tidier than poking at p->current directly.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

gk110/ir: fix bfind emission

There is a short-immediate version as well, but it should never end up
getting used since it would have gotten folded earlier.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

docs: Add MD5 checksum, etc. for 10.2.1 release

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 70ce1031e7947c28133cb90211ecd6866c079d8b)

docs: Add initial 10.2.1 release notes

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 8c4845d29b21ec902c59d84e51d95639f0709085)

configure.ac: Do not use Pthreads with MinGW.

Match the behavior of the SCons MinGW build.

This patch also fixes these build errors.

  CC       glapi_entrypoint.lo
glapi_entrypoint.c: In function 'init_glapi_relocs_once':
glapi_entrypoint.c:341:4: error: unknown type name 'pthread_once_t'
    static pthread_once_t once_control = PTHREAD_ONCE_INIT;
    ^
glapi_entrypoint.c:341:41: error: 'PTHREAD_ONCE_INIT' undeclared (first use in this function)
    static pthread_once_t once_control = PTHREAD_ONCE_INIT;
                                         ^
glapi_entrypoint.c:341:41: note: each undeclared identifier is reported only once for each function it appears in
glapi_entrypoint.c:342:4: error: implicit declaration of function 'pthread_once' [-Werror=implicit-function-declaration]
    pthread_once( & once_control, init_glapi_relocs );
    ^

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>

gk110/ir: fix emitting constbuf file index

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

docs: Add MD5 checksum, etc. for 10.1 release

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 28d41e409d74aabe35f1031e759179e82cb760b4)

gk110/ir: emit saturate flag on fadd when needed

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

gk110/ir: fix slct emission

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

st/mesa: remove extra calculation of sampler count

This code was originally introduced to fix https://bugs.freedesktop.org/show_bug.cgi?id=53617. The comment says you need to pass NULL in order to unref old views however cso_set_sampler_views() already takes care of old views with the second for loop. Also as of 2355a6441435b8e66a032c44f0794066338e30a3 cso_set_sampler_views() passes the max of the old and new views to the driver for all state trackers making this code obsolete.

Signed-off-by: Timothy Arceri <t_arceri@yahoo.com.au>
Reviewed-by: Brian Paul <brianp@vmware.com>

gk110/ir: fix interp mode emission

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

gk110/ir: fix ISAD emission with register args

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

gk110/ir: fix quadon opcode emission

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

nvc0: don't bother trying to set up compute for gk110+

The nouveau fw currently prints a bunch of errors. No point in seeing
those all the time, esp since compute doesn't really work in the first
place.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

gk110: add in forgotten code for gk110 isa

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

gk110/ir: emit texbar the same way that the blob does

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

scons: Search only for mingw-w64 cross-compilers.

Some distros still ship the non-mingw-w64 cross-compilers, but they are
can't build Mesa properly, as Jakob pointed out.

i915g: Remove 4444 and 5551 formats

They don't seem to work 100%, I need to investigate but in the
meantime let's remove them.

nvc0/ir: Handle OP_POPCNT when folding constant expressions

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
[imirkin: make sure to only fold 1-arg popcnt in opnd]
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: Handle OP_BFIND when folding constant expressions

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: Handle reverse subop for OP_EXTBF when folding constant expressions

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: clear subop when folding constant expressions

Some operations (e.g. OP_MUL/OP_MAD/OP_EXTBF) might have a subop set.
After folding, make sure that it is cleared

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>

i965: Support GL_CLAMP natively on Broadwell.

The new hardware actually supports this OpenGL 1.x feature natively,
so we can finally drop our shader workarounds.

Not many applications use GL_CLAMP, and most use it unintentionally, but
it's trivial to do right, so we should.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

i965: Pass brw to translate_wrap_mode().

This lets us do generation checks.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

i965: use _mesa_align_malloc in intel_miptree_map_movntdqa

This fixes case where we have 1x1 size buffer and misalignment is 0.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79616

i965/fs: Allow array dereference of HW_REG.

When dereferencing an element of gl_SampleMaskIn[], the source register
here will be a HW_REG rather than a VGRF because the payload slot is
now exposed directly.

Fixes an assertion failure in the Piglit test:

   tests/spec/arb_gpu_shader5/execution/samplemaskin-basic

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

st/omx/enc: enable b frames

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

radeon/vce: implement h264 profile support

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

st/omx/enc: implement h264 profile support

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

vl: add more avc profiles

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

wgl: Disable CRT message boxes when Windows system error messages boxes are disabled.

At least on MSVC we statically link against the CRT, so we must disable
the CRT message boxes if we want unattended testing.

The messages are convenient when running manually, so let them be if the
system error message boxes are not disabled.

glapi: Note apparent gap in numbering from ARB_multi_draw_indirect

This is defined in the same included file as ARB_draw_indirect.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>

docs: Mark off gs5/overload resolution

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>

glsl: Implement overload resolution for ARB_gpu_shader5

V3: Move spec citation into the code.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

glsl: Add support for comparing function parameter conversions

The ARB_gpu_shader5 spec says:

"To determine whether the conversion for a single argument in one match is
better than that for another match, the following rules are applied, in
order:

  1. An exact match is better than a match involving any implicit
     conversion.

  2. A match involving an implicit conversion from float to double is
     better than a match involving any other implicit conversion.

  3. A match involving an implicit conversion from either int or uint to
     float is better than a match involving an implicit conversion from
     either int or uint to double.

If none of the rules above apply to a particular pair of conversions,
neither conversion is considered better than the other."

V3: Add spec citation, including oddball difference between gs5 and GLSL
4.0; comment a bit better as per Jordan's suggestions.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

glsl: Build a list of inexact function matches

This will facilitate GLSL 4.0 / ARB_gpu_shader5's enhanced overload
resolution rules, and also possibly better error reporting for ambiguous
function calls.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

docs: Mark off gs5/implicit conversions

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>

glsl: Allow int -> uint implicit conversions on function parameters

V2: Fix crashes during linking, where the parse state is NULL. In this
case, all required checks have already been done, so we assume the
extension is enabled.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Pass parse state to can_implicitly_convert_to()

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Pass parse state to parameter_lists_match()

The available implicit conversions depend on the GLSL version we're
compiling.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Add support for int -> uint implicit conversions

This is required for ARB_gpu_shader5.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Clean up apply_implicit_conversion

We're about to add new implicit conversions, first for ARB_gpu_shader5,
and then later for ARB_gpu_shader_fp64. Pull out the opcode
determination into its own function, and get rid of the bool -> float
case that could never be hit anyway [since it fails the is_numeric()
check].

V2: Retain the vector width mangling. It turns out this is necessary for
the conversions done (and then thrown away) when determining the return
type of arithmetic operators.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

docs: Update `precise` qualifier status in GL3.txt

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

glsl: Allow `precise` as a parameter qualifier

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

glsl: Disallow `precise` redeclarations of vars from outer scopes

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

glsl: Add support for `precise` redeclarations

This works like glsl-1.20+'s invariant redeclarations, but with fewer
restrictions, since `precise` is allowed on pretty much anything.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

glsl: add support for `precise` in type_qualifier

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

glsl: remove outdated comment, move sample to correct block

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

i965: Fix copy and pasted values in Broadwell code.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

glsl: Make most ir_instruction::as_subclass() functions non-virtual.

There are several common ways to check whether an object is a particular
subclass: dynamic_cast<>, the as_subclass() pattern, or explicit enum
tags.  We originally used the virtual as_subclass methods, but later
added enum tags as they are much nicer for debugging.

Since we have the enum tags, we don't necessarily need to use virtual
functions to implement the as_subclass() methods.  We can just check the
tag and return the pointer or NULL.

This saves 18 entries in the vtable, and instead of two pointer
dereferences per as_subclass() call most are only three inline
instructions.

Compile time of sam3/112.frag (the longest compile in a recent shader-db
run) is reduced by 5% from 348 to 329 ms (n=500).

perf stat of this workload shows:
   24.14% reduction in iTLB-loads:       285,543 -> 216,606
   42.55% reduction in iTLB-load-misses:  18,785 ->  10,792

Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

glsl: Move ir_type_unset to end of enumeration.

Now that the constructors set a type, ir_type_unset is not very useful.
Move it to the end of the enum (specifically out of position 0) so that
enums checks for dereferences and rvalues can save an instruction.

Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

glsl: Reorder ir_type_* enum for easier comparisons.

Makes checking whether an object is an ir_dereference, an ir_rvalue, or
an ir_jump simpler. Since ir_dereference is a subclass or ir_rvalue,
list its subtypes first so that they can both generate nice code.

Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

glsl: Remove useless call to as_rvalue().

The type returned by hir() is already an ir_rvalue pointer.

Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

glsl: Set ir_instruction::ir_type in the base class constructor

This has the added perk that if you forget to set ir_type in the
constructor of a new subclass (or a new constructor of an existing
subclass) the compiler will tell you... instead of relying on
ir_validate or similar run-time detection.

Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

egl: Check for NULL native_window in eglCreateWindowSurface

We have customers using NULL as a way to test the robustness of the API.
Without this check, EGL will segfault trying to dereference
dri2_surf->wl_win->private because wl_win is NULL.

This fix adds a check and sets EGL_BAD_NATIVE_WINDOW

v2: Incorporated feedback from idr - moved the check to a higher level
function.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>

r600g,radeonsi: don't use hardware MSAA resolve if dst is fast-cleared

It doesn't work and our docs say so too.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

radeonsi: BlitFramebuffer should follow render condition

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

r600g: BlitFramebuffer should follow render condition

r300g: BlitFramebuffer should follow render condition

r600g,radeonsi: disable fast clear if render condition is on

For some reason, CP DMA doesn't follow the predicate bit if I enable it,
so this is the only option.

This fixes piglit: spec/NV_conditional_render/clear

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

mesa: Make glGetIntegerv(GL_*_ARRAY_SIZE) return GL_BGRA.

Same as b026b6bbfe3f15c8a7296ac107dc3d31f74e401e, but
COLOR_ARRAY_SIZE/SECONDARY_COLOR_ARRAY_SIZE.

Ideally we wouldn't munge the incoming state, so that we wouldn't need
to unmunge it back on glGet*.  But the array size state is copied and
referred in many places, many of which couldn't take an GLenum like
GL_BGRA instead of a plain integer.  So just hack around on glGet*,
to ensure there is no risk of introducing regressions elsewhere.

This bug causes problems to Apitrace, resulting in wrong traces.  See
https://github.com/apitrace/apitrace/issues/261 for details.

Tested with piglit arb_vertex_array_bgra-get, which was created for this
purpose.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>