i915: Fix up intelInitScreen2 for DRI3

Commit 442442026eb updated both i915 and i965 for DRI3 support,
but one check in intelInitScreen2 was missed for i915 causing crashes
when trying to use i915 with DRI3.

So fix that up.

Reported-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
References: https://bugzilla.redhat.com/show_bug.cgi?id=1115323
References: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=754297
Tested-by: František Zatloukal <Zatloukal.Frantisek@gmail.com>
Tested-by: Dirk Griesbach <spamthis@freenet.de>
Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

mesa: Fix regression introduced by commit "mesa: fix packing of float texels to GL_SHORT/GL_BYTE".

This commit "mesa: fix packing of float texels to GL_SHORT/GL_BYTE" replaced *_TO_BYTE to *_TO_BYTE_TEX because *_TO_FLOAT_TEX are used to unpack the texels to floats.
In this case *_TO_FLOATZ in function extract_float_rgba also should be replaced to *_TO_FLOAT_TEX. Underline that these macros automatically preserve zero when converting.

The regression was observed on 3 oglconform tests:
    snorm-textures basic.getTexImage
    snorm-textures advanced.mipmap.manual.getTex
    snorm-textures advanced.mipmap.upload.getTex

Signed-off-by: Pavel Popov <pavel.e.popov@intel.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>

nv50: fix build failure on m68k due to invalid struct alignment assumptions

Make alignment assumptions explicit by inserting correct padding with
unknown struct members.

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: <mesa-stable@lists.freedesktop.org>

clover: Call end_query before getting timestamp result v2

v2:
  - Move the end_query() call into the timestamp constructor.
  - Still pass false as the wait parameter to get_query_result().

Reviewed-by: Niels Ole Salscheider <niels_ole@salscheider-online.de>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
CC: "10.2" <mesa-stable@lists.freedesktop.org>

glsl: handle a switch where default is in the middle of cases

This fixes following tests in es3conform:

   shaders.switch.default_not_last_dynamic_vertex
   shaders.switch.default_not_last_dynamic_fragment

and makes following tests in Piglit pass:

   glsl-1.30/execution/switch/fs-default-notlast-fallthrough
   glsl-1.30/execution/switch/fs-default_notlast

No Piglit regressions.

v2: take away unnecessary ir_if, just use conditional assignment
v3: use foreach_in_list instead of foreach_list

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com> (v2)
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> (v3)

glsl: Make the tree rebalancer use vector_elements, not components().

components() includes matrix columns, so if this code encountered a
matrix, it would ask for something like a vec9 or vec16.  This is
clearly not what you want.

Earlier code now prevents this from seeing matrices, but we should still
use vector_elements, for clarity.

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

glsl: Guard against error_type in the tree rebalancer.

This helped me track down the bug fixed in the previous commit.

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

glsl: Make the tree rebalancer bail on matrix operands.

It doesn't handle things like (vector * matrix) correctly, and
apparently Matt's intention was to bail.

Fixes shader compilation in Natural Selection 2.

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

Revert "i965: Implement GL_PRIMITIVES_GENERATED with non-zero streams."

This reverts commit 3178d2474ae5bdd1102fb3d76a60d1d63c961ff5.

This caused GPU hangs on Ivybridge for some users and huge (80%)
performance regressions across the board on multiple platforms.

We need to find a better solution.  I've made several attempts, but none
of them have worked yet.  In the meantime, we should revert this.

Reverting it breaks GL_PRIMITIVES_GENERATED for non-zero streams, but
that's okay, since we don't expose GL_ARB_gpu_shader5 yet.

Fixes Piglit's EXT_transform_feedback/generatemipmap prims_generated
test case on Haswell.

ilo: add some missing formats

Map more pipe formats to hardware formats.  Enable more VB formats on Haswell.

ilo: update and tailor the surface format table

Recreate the table from scratch with the help of a pdf-table-to-csv converter.
Switch to a form that is more suitable for ilo.

i965: Don't copy propagate abs into Broadwell logic instructions.

It's not clear what abs on logical instructions means on Broadwell, and
it doesn't appear to do anything sensible.

Fixes 270 Piglit tests (the bitand/bitor/bitxor tests with abs).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81157
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>

i965/fs: Use WE_all for gl_SampleID header register munging.

This code should execute without regard to the currently executing
channels.  Asking for gl_SampleID inside control flow might break in
strange ways.  It appears to break even at the top of the program in
SIMD16 mode occasionally as well.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Cc: mesa-stable@lists.freedesktop.org

i965/fs: Set force_uncompressed and force_sechalf on samplepos setup.

gen8_fs_generator uses these to decide whether to set the execution size
to 8 or 16, so we incorrectly made both of these MOVs the full width in
SIMD16 shaders.  (It happened to work out on Gen4-7.)

Setting them should also help inform optimization passes what's really
going on, which could help avoid bugs.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Cc: mesa-stable@lists.freedesktop.org

i965: Set execution size to 8 for instructions with force_sechalf set.

Both inst->force_uncompressed and inst->force_sechalf mean that the
generated instruction should be uncompressed and have an execution size
of 8.  We don't require the visitor to set both flags - setting
inst->force_sechalf by itself is supposed to be enough.

On Gen4-7, guess_execution_size() demoted instructions to 8-wide based
on the default compression state.  On Gen8+, we instead set a default
execution size, which worked great...except that we forgot to check
inst->force_sechalf when deciding whether to use 8 or 16.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Cc: mesa-stable@lists.freedesktop.org

nvc0: fix translate path for PRIM_RESTART_WITH_DRAW_ARRAYS

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: add support for indirect drawing

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nouveau: check if a fence has already been signalled

nouveau_fence_update does real work unconditionally. Avoid doing that if
the fence we're checking on has already been signalled.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

glsl: Don't declare variables in for-loop declaration.

Reported-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

exec_list: Make various places use the new length() method.

Instead of hand-rolling it.

v2 [mattst88]: Rename get_size to length. Expand comment in ir_reader.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> [v1]
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Connor Abbott <connor.abbott@intel.com>

exec_list: Add a function to give the length of a list.

v2 [mattst88]: Remove trailing whitespace. Rename get_size to length.
               Mark as const.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> [v1]
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Connor Abbott <connor.abbott@intel.com>

exec_list: Add a prepend function.

This complements the existing append function. It's implemented in a
rather simple way right now; it could be changed if performance is a
concern.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Connor Abbott <connor.abbott@intel.com>

mesa: Don't allow GL_TEXTURE_{LUMINANCE,INTENSITY}_* queries outside compat profile

There are no queries for GL_TEXTURE_LUMINANCE_SIZE,
GL_TEXTURE_INTENSITY_SIZE, GL_TEXTURE_LUMINANCE_TYPE, or
GL_TEXTURE_INTENSITY_TYPE in any version of OpenGL ES or desktop OpenGL
core profile.

NOTE: Without changes to piglit, this regresses
required-sized-texture-formats.

v2: Rebase on different initial change.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Cc: "10.2 <mesa-stable@lists.freedesktop.org>

mesa: Don't allow GL_TEXTURE_BORDER queries outside compat profile

There are no texture borders in any version of OpenGL ES or desktop
OpenGL core profile.

Fixes piglit's gl-3.2-texture-border-deprecated.

v2: Rebase on different initial change.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Cc: "10.2 <mesa-stable@lists.freedesktop.org>

mesa: Handle uninitialized textures like other textures in get_tex_level_parameter_image

Instead of catching the special case early, handle it by constructing a
fake gl_texture_image that will cause the values required by the OpenGL
4.0 spec to be returned.

Previously, calling

    glGenTextures(1, &t);
    glBindTexture(GL_TEXTURE_2D, t);
    glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, 0xDEADBEEF, &value);

would not generate an error.

Anuj: Can you verify this does not regress proxy_textures_invalid_size?

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Suggested-by: Brian Paul <brianp@vmware.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>
Cc: Anuj Phogat <anuj.phogat@gmail.com>

i965/fs: Relax interference check in register coalescing.

A similar attempt was made in commit 5ff1e446 and was reverted in commit
a39428cf after causing a regression in an ES 3 conformance test. The
test still passes after this commit.

total instructions in shared programs: 1994827 -> 1992858 (-0.10%)
instructions in affected programs:     128247 -> 126278 (-1.54%)
GAINED:                                0
LOST:                                  1

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

i965/fs: Perform CSE on sends-from-GRF rather than textures.

Should potentially allow a few more cases, while avoiding doing CSE on
texture operations on Gen <= 6 with the MRF.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80211
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: lu hua <huax.lu@intel.com>

glsl: Update expression types after rebalancing the tree.

If we saw a tree that looked like

            vec3
           /   \
         vec3 float
        /   \
      vec3 float
     /   \
   vec3 float

We would see that all of the expression types were vec3, and then
rebalance to

           vec3
        /        \
      vec3       vec3 <-- should be float
     /   \      /    \
   vec3 float float float

This patch adds code to visit the rebalanced tree and update the
expression types from the bottom up.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80880
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Add callback_leave to ir_hierarchical_visitor.

i965: Initialize new chunks of realloc'd memory.

Otherwise we'd compare uninitialized pointers with NULL and dereference,
leading to crashes.

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

radeon/llvm: Fix LLVM diagnostic error reporting

We were trying to print the error message after disposing the
message object.

Tested-by and Reviewed-by: Aaron Watry <awatry@gmail.com>

util/tgsi: Fix ureg_EMIT/ENDPRIM prototype.

0cbefc1bea703378381afff946e30c27a21f191d added a source argument to
EMIT/ENDPRIM, but it did not update tgsi_ureg accordingly, causing all
users of ureg_EMIT/ENDPRIM to fail at runtime with an assertion failure.

Trivial.

glapi: Use GetProcAddress instead of dlsym on Windows.

This patch fixes this MinGW build error.

glapi_gentable.c: In function '_glapi_create_table_from_handle':
glapi_gentable.c:123:9: error: implicit declaration of function 'dlsym' [-Werror=implicit-function-declaration]
         *procp = dlsym(handle, symboln);
         ^

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Acked-by: Brian Paul <brianp@vmware.com>

ilo: raise texture size limits

Report the hardware limits now that max-texture-size piglit test has been
fixed.

ilo: move away from drm_intel_bo_alloc_tiled

We want to know the exact sizes of the BOs, and the driver has the knowledge
to do so.  Refactoring of the resource allocation code is needed though.

radeonsi: partially revert "switch descriptors to i32 vectors"

It indeed breaks LLVM 3.4.2.

i965/vec4: Invalidate live intervals in opt_cse, not _local.

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

i965/vec4: Move aeb list into opt_cse_local.

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

i965/fs: Invalidate live intervals in opt_cse, not _local.

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

i965/fs: Move aeb list into opt_cse_local.

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

glsl: Fix aggregates with dynamic initializers.

Vectors are falling in to the ir_dereference_array() path.

Without this change, the following glsl aborts the debug driver,
or gets the wrong answer in release:

mat2x2 a = mat2( vec2( 1.0, vertex.x ), vec2( 0.0, 1.0 ) );

Also submitting piglit tests, will reference in bug.

v2: Rebase on Mesa master.

v3: Remove unneeded check for arrays, which are covered by
    process_array_constructor(), recommended by Timothy Arceri.

Signed-off-by: Cody Northrop <cody@lunarg.com>
Reviewed-by: Courtney Goeltzenleuchter <courtney@lunarg.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79373

Avoid mesa_dri_drivers import lib being installed

On Cygwin and MinGW, linking a shared library also generates an import library

Use a wildcard which also matches the name of the megadriver import lib,
mesa_dri_drivers.dll.a, so that is also removed after megadriver symlinks are
created

(This then matches src/gallium/targets/dri/Makefile.am, which already does
things this way)

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

i965/vec4: Silence warnings about unhandled interpolation ops

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

docs: Mark off ARB_gpu_shader5 interpolation functions for i965

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

i965/fs: add support for ir_*_interpolate_at_* expressions

SIMD8-only for now.

V5: - Fix style complaints
    - Move prototype to be with other oddball emit functions
    - Use unreachable() instead of assert() where possible

V6: - Describe what is happening with the clamping
    - Add reg_width to make some expressions clearer

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

i965/fs: Skip channel expressions splitting for interpolation

The backend will have to do a message send, so we want to keep these in
one piece, just like texture ops.

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

i965/fs: add generator support for pixel interpolator query

V5: - Split into separate opcodes
    - Pass message data in src1 immediate
    - Put noperspective bit in fs_inst rather than adding any junk to
      backend_instruction

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

i965: add low-level support for send to pixel interpolator

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

i965/disasm: add support for pixel interpolator messages

V3: Rework for brw_inst changes

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

i965: Add message descriptor bit definitions for pixel interpolator

These got lost in the big brw_inst shakeup.

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

i965/disasm: Disassemble indirect sends more properly

- Don't try to disassemble send's src1 as a descriptor if it's not an
  immediate.

- In the same case, show src1 as an operand (makes it easier to see
  bogus register regions, etc -- the hardware is very fussy)

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965: Avoid crashing while dumping vec4 insn operands

We'd otherwise go looking into virtual_grf_sizes for things that aren't
in there at all.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965: Fix two broken asserts in brw_eu_emit

These were looking in the wrong field.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Matt Turner <mattst88@gmail.com>

glsl: add new interpolateAt* builtin functions

V2: - Don't assume everyone wants interpolateAtSample() lowered to
      interpolateAtOffset. It turns out this isn't what we want most
      of the time for i965. Lowering can be added later in an ir pass
      which drivers opt into, rather than bolting it straight into the
      builtin definition.
    - Only expose the interpolateAt* builtins in the fragment language.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

glsl: add new expression types for interpolateAt*

Will be used to implement interpolateAt*() from ARB_gpu_shader5

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

allow builtin functions to require parameters to be shader inputs

The new interpolateAt* builtins have strange restrictions on the
<interpolant> parameter.

- It must be a shader input, or an element of a shader input array.
- It must not include a swizzle.

V2: Don't abuse ir_var_mode_shader_in for this; make a new flag.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

radeonsi: rename definitions of shader limits

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

radeonsi: switch descriptors to i32 vectors

This is a follow-up to the commit which adds texture fetches with offsets.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

radeonsi: properly implement texture opcodes that take an offset

Instead of using intr_name in lp_build_tgsi_action, this selects the names
with a switch statement in the emit function. This allows emitting
llvm.SI.sample for instructions without offsets and llvm.SI.image.sample.*.o
otherwise.

This depends on my LLVM changes.

When LLVM 3.5 is released, I'll switch all texture instructions to the new
intrinsics.

radeonsi: fix texture fetches with derivatives for 1DArray and 3D textures

radeonsi: fix samplerCubeShadow with bias

Pack the depth value before overwriting it with cube coordinates.

Cc: mesa-stable@lists.freedesktop.org

st/mesa: fix samplerCubeShadow with bias

It has 5 coordinates: (x,y,z,depth,lodbias)

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

mesa: fix crash in st/mesa after deleting a VAO

This happens when glGetMultisamplefv (or any other non-draw function) is
called, which doesn't invoke the VBO module to update _DrawArrays and
the pointer is invalid at that point.

However st/mesa still dereferences it to setup vertex buffers ==> crash.

Reviewed-by: Brian Paul <brianp@vmware.com>

configure: Cygwin requires _XOPEN_SOURCE >= 700 to prototype strndup()

Adjust definition of _XOPEN_SOURCE appropriately for use of strndup() added with
commit da3a47d6

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>

gallium/docs: minor clarification for TXQ instruction

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

softpipe: fix sp_get_dims() for PIPE_BUFFER

Before, we were checking the level against view->u.tex.last_level but
level is not valid for buffers.  Plus, the aliasing of the view->u.tex
view->u.buf members (a union) caused the level checking arithmetic to
be totally wrong.  The net effect is we always returned early for
PIPE_BUFFER size queries.

This fixes the piglit "textureSize 140 fs samplerBuffer" test.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>

glsl/glcpp: move macro declaration before code to fix MSVC build

Reviewed-by: Carl Worth <cworth@cworth.org>

nvc0/ir: add support for interpolating with non-default settings

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

gallium: add INTERP_* opcodes to support interpolateAt*

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

r600g: remove unused base_vector_chan variable

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

i965: forward-declare struct brw_context in brw_reg.h

Commit 54e91e7420 introduced a function declaration that uses
brw_context. While brw_context tends to get included in most files, it
is not when compiling intel_asm_annotation.c resulting in the following
warning:

In file included from brw_shader.h:25:0,
                 from brw_cfg.h:32,
                 from intel_asm_annotation.c:24:
brw_reg.h:122:39: warning: 'struct brw_context' declared inside
parameter list [enabled by default]
brw_reg.h:122:39: warning: its scope is only this definition or
declaration, which is probably not what you want [enabled by default]

Add a forward-declaration for struct brw_context to avoid the issue.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

nvc0/ir: fix encoding of offset register into interpolation instruction

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: account for indirect textures on fermi for txd

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: unset s/r indirect sources before moving everything

With the current logic, it's very likely that s/r indirect sources are
right after the "regular" ones. Unset them before moving the texture
arguments over rather than after, as one of those arguments would
likely have assumed one of the s/r positions.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

targets/dri-swrast: Convert to static/shared pipe-driver

Convert the final dri target to the single DRI (megadriver) library.
Cleanup all the automake leftovers from the conversion stage and
update the scons build.

v2: Link in llvmpipe, when applicable.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

st/dri: merge dri/drm and dri/sw backends

Move the driver_name to dri2/drisw and remove all the SPLIT_TAGETS
mayhem. In the next step we'll unify the dri and dri-swrast targets,
completing the gallium DRI megadriver.

v2: Remove leftover st/dri Makefiles from CONFIG_FILES. Spotted by
Thomas Helland.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri-swrast: convert to gallium megadrivers :)

Export the approapriate new symbol, and keep backwards compat
via the megadriver_stub helper library.

Our next step would be to unify dri/drm and dri/sw, leading to
a complete megadrivers solution, and having a single library
that provides dri across all targets.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

scons: build and use a single dri_common library

Rather than building two identical ones for dri-vmwgfx and dri-swrast
build a single library, and drop some duplication in the build.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

st/dri/drm: remove __driDriverExtensions and driDriverAPI

... and use libmegadriver_stub as their provider.
Teach scons how to build the library archive and use it.

v2: scons: fix build on a drm-less system.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri: cleanup conversion leftovers

With all the users converted to __driGetExtensions_* we can
have only a single inclusion of the required header + define.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri: update scons build to handle __driDriverGetExtensions_vmwgfx

Cc: Jose Fonseca <jfonseca@vmware.com>
Cc: Brian Paul <brianp@vmware.com>
Cc: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri: Add __driDriverGetExtensions_vmwgfx

Identical to previous commits - will bring us a step closer
to megadrivers.

Cc: Jose Fonseca <jfonseca@vmware.com>
Cc: Brian Paul <brianp@vmware.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri: Add __driDriverGetExtensions_i965 symbol

Identical to previous commits - will bring us a step closer
to megadrivers.

Cc: Chia-I Wu <olv@lunarg.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri: Add __driDriverGetExtensions_i915 symbol

Identical to previous commits - will bring us a step closer
to megadrivers.

Cc: Stephane Marchesin <stephane.marchesin@gmail.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri: Add __driDriverGetExtensions_freedreno symbol

Identical to previous two commits - will bring us a step closer
to megadrivers.

Cc: Rob Clark <robclark@freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri: Add __driDriverGetExtensions_(r300|r600|radeonsi) symbols

The symbol is introduced by the mesa megadrivers, and
adding gallium support for it will allow us to merge
st/dri/drm and st/dri/sw. Resulting in a single dri library
across all of gallium.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

targets/dri: Add __driDriverGetExtensions_nouveau symbol

The symbol is introduced by the mesa megadrivers, and adding
gallium support for it will allow us to merge st/dri/drm and
st/dri/sw. Resulting in a single dri library across gallium.

v2: Rebase on top of gallium dri3.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Rob Clark <robclark@freedesktop.org>
Tested-by: Thomas Helland <thomashelland90 at gmail.com>
Acked-by: Tom Stellard <thomas.stellard@amd.com>

tgsi: add interpolation location modifier support to text parser

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

mesa/st: add per sample shading state to fp key and set interpolation

This enables a gallium driver not to care about the semantics of
ARB_sample_shading vs ARB_gpu_shader5 sample attributes. When
ARB_sample_shading-style sample shading is enabled, all of the fp inputs
are marked for interpolation at the sample location.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

gallium: switch dedicated centroid field to interpolation location

The new location field can be either center, centroid, or sample, which
indicates the location that the shader should interpolate at.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

meta: Call glObjectLabel before linking.

i965 precompiles shaders at link time, and prints a disassembly if
INTEL_DEBUG=vs,gs,fs, including the shader name.  However, blit shaders
were showing up as "unnamed" since we hadn't set a name prior to
linking.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

ff_fragment_shader: Access glsl_types directly.

Originally, we didn't have direct accessors for all of the GLSL types,
so the only way to get at them was to use the symbol table.  Now, we
can just get at them directly, which is simpler and faster.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>

st/mesa: add PIPE_FORMAT_R10G10B10A2_UNORM to format_map table

as a candidate for the GL_RGB10_A2 internal texture format.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

st/mesa: add some missing MESA/PIPE_FORMAT_R10G10B10A2_UNORM switch cases

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

glsl/glcpp: Don't choke on an empty pragma

The lexer was insisting that there be at least one character after "#pragma"
and before the end of the line. This caused an error for a line consisting
only of "#pragma" which volates at least the following sentence from the GLSL
ES Specification 3.00.4:

The scope as well as the effect of the optimize and debug pragmas is
implementation-dependent except that their use must not generate an
error. [Page 12 (Page 28 of PDF)]

and likely the following sentence from that specification and also in
GLSLangSpec 4.30.6:

If an implementation does not recognize the tokens following #pragma,
then it will ignore that pragma.

Add a "make check" test to ensure no future regressions.

This change fixes at least part of the following Khronos GLES3 CTS test:

preprocessor.pragmas.pragma_vertex

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

glsl/glcpp: Promote "extra token at end of directive" from warning to error

We've always warned about this case, but a recent confromance test expects
this to be an error that causes compilation to fail. Make it so.

Also add a "make check" test to ensure these errors are generated.

This fixes the following Khronos GLES3 conformance tests:

invalid_conditionals.tokens_after_ifdef_vertex
invalid_conditionals.tokens_after_ifdef_fragment
invalid_conditionals.tokens_after_ifndef_vertex
invalid_conditionals.tokens_after_ifndef_fragment

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

glsl/glcpp: Once again report undefined macro name in error message.

While writing the previous commit message, I just felt bad documenting the
shortcoming of the change, (that undefined macro names would not be reported
in error messages).

Fix this by preserving the first-encounterd undefined macro name and reporting
that in any resulting error message.

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

glsl/glcpp: Add short-circuiting for || and && in #if/#elif for OpenGL ES.

The GLSL ES Specification 3.00.4 says:

#if, #ifdef, #ifndef, #else, #elif, and #endif are defined to operate
        as for C++ except for the following:
...
• Undefined identifiers not consumed by the defined operator do not
  default to '0'. Use of such identifiers causes an error.

[Page 11 (page 127 of the PDF file)]

as well as:

The semantics of applying operators in the preprocessor match those
standard in the C++ preprocessor with the following exceptions:

• The 2nd operand in a logical and ('&&') operation is evaluated if
  and only if the 1st operand evaluates to non-zero.

• The 2nd operand in a logical or ('||') operation is evaluated if
  and only if the 1st operand evaluates to zero.

If an operand is not evaluated, the presence of undefined identifiers
in the operand will not cause an error.

(Note that neither of these deviations from C++ preprocessor behavior apply to
non-ES GLSL, at least as of specfication version 4.30.6).

The first portion of this, (generating an error for an undefined macro in an
(short-circuiting to squelch errors), was not implemented previously, but is
implemented in this commit.

A test is added for "make check" to ensure this behavior.

Note: The change as implemented does make the error message a bit less
precise, (it just states that an undefined macro was encountered, but not the
name of the macro).

This commit fixes the following Khronos GLES3 conformance test:

undefined_identifiers.valid_undefined_identifier_1_vertex
undefined_identifiers.valid_undefined_identifier_1_fragment
undefined_identifiers.valid_undefined_identifier_2_vertex
undefined_identifiers.valid_undefined_identifier_2_fragment

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

glsl/glcpp: Fix glcpp to properly lex entire "preprocessing numbers"

The preprocessor defines a notions of a "preprocessing number" that
starts with either a digit or a decimal point, and continues with zero
or more of digits, decimal points, identifier characters, or the sign
symbols, ('-' and '+').

Prior to this change, preprocessing numbers were lexed as some
combination of OTHER and IDENTIFIER tokens. This had the problem of
causing undesired macro expansion in some cases.

We add tests to ensure that the undesired macro expansion does not
happen in cases such as:

#define e +1
#define xyz -2

int n = 1e;
int p = 1xyz;

In either case these macro definitions have no effect after this
change, so that the numeric literals, (whether valid or not), will be
passed on as-is from the preprocessor to the compiler proper.

This fixes the following Khronos GLES3 CTS tests:

preprocessor.basic.correct_phases_vertex
preprocessor.basic.correct_phases_fragment

v2. Thanks to Anuj Phogat for improving the original regular expression,
(which accepted a '+' or '-', where these are only allowed after one of
[eEpP]. I also expanded the test to exercise this.

v3. Also fixed regular expression to require at least one digit at the
beginning (after an optional period). Otherwise, a string such as ".xyz" was
getting sucked up as a preprocessing number, (where obviously this should be a
field access). Again, I expanded the test to exercise this.

Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

glsl/glcpp: Fix glcpp to catch garbage after #if 1 ... #else

Previously, a line such as:

#else garbage

would flag an error if it followed "#if 0", but not if it followed "#if 1".

We fix this by setting a new bit of state (lexing_else) that allows the lexer
to defer switching to the <SKIP> start state until after the NEWLINE following
the #else directive.

A new test case is added for:

#if 1
#else garbage
#endif

which was untested before, (and did not generate the desired error).

This fixes the following Khronos GLES3 CTS tests:

tokens_after_else_vertex
        tokens_after_else_fragment

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>