glsl: replace unreachable code path with assert

The lower_named_interface_blocks() pass is called before we try
assign locations to varyings so this shouldn't be reachable.

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

Revert "glsl: replace unreachable code path with assert"

This reverts commit 98270fd20d4d58db8ae5af3b6f10ed6a81c058a6.

Something went terribly wrong the commit is not what the commit
message says.

glsl: replace unreachable code path with assert

The lower_named_interface_blocks() pass is called before we try
assign locations to varyings so this shouldn't be reachable.

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

glsl: combine if blocks

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

mesa: Update todo regarding StencilOp and StencilOpSeparate.

OpenGL 2.0 function StencilOp() is in part internally implemented via
StencilOpSeparate(). This change happened some time ago, however the
accompanying doxygen todo comment was not accordingly updated.

Replace the outdated portion of this doxygen todo comment, leaving the
remainder unchanged.

Also better respect the 80 character suggested line length in this file.

v2: Fully remove comment, following code review by t_arceri@yahoo.com.au

Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>

glsl: Make bitfield_insert/extract and bfi/bfm non-vectorizable.

Currently, opt_vectorize() tries to combine:

    result.x = bitfieldInsert(src0.x, src1.x, src2.x, src3.x);
    result.y = bitfieldInsert(src0.y, src1.y, src2.y, src3.y);
    result.z = bitfieldInsert(src0.z, src1.z, src2.z, src3.z);
    result.w = bitfieldInsert(src0.w, src1.w, src2.w, src3.w);

into a single ir_quadop_bitfield_insert opcode, which operates on
ivec4s.  However, GLSL IR's opcodes currently require the bits and
offset parameters to be scalar integers.  So, this breaks.

We want to be able to vectorize this eventually, but for now, just
chicken out and make opt_vectorize() bail by marking all the bitfield
insert/extract related opcodes as horizontal.  This is a relatively
uncommon case today, so we'll do the simple fix for stable branches,
and fix it properly on master.

Fixes assertion failures when compiling Shadow of Mordor vertex shaders
on i965 in vec4 mode (where OptimizeForAOS enables opt_vectorize()).

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

nv50/ir: Fix scratch allocation size and file

Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

mesa: merge bind_atomic_buffers_{base|range}

Reduced code duplication should make the code more maintainable.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

mesa: merge bind_shader_storage_buffers_{base|range}

Reduced code duplication should make the code more maintainable.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

mesa: merge bind_uniform_buffers_{base|range}

Reduced code duplication should make the code more maintainable.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

mesa: merge bind_xfb_buffers_{base|range}

Reduced code duplication should make the code more maintainable.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

glsl: Don't add nir files to libglsl_la_SOURCES

SCons doesn't understand nir yet and doesn't want to compile the glsl to
nir pass. Move the files to their own variable so we can add it only for
automake.

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

nv50,nvc0: use a face sysval to avoid the useless back-and-forth conversion

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

glsl: Move _mesa_shader_stage_to_string/abbrev to shader_enums.c

These are used by code that doesn't necessarily link to libglsl.la. Move
them to shader_enums.[ch] where we keep similar helpers.

Reviewed-by: Matt Turner <mattst88@gmail.com>

i965: Move GLSL lowering passes out of libi965_compiler.la

The scope of libi965_compiler.la is to be able to take nir shaders and
generate i965 EU code.  As such, we don't want the GLSL IR lowering
passes in the library. With this change, libi965_compiler.la no longer
needs to link to libglsl.la.

Reviewed-by: Matt Turner <mattst88@gmail.com>

glsl: Move glsl_to_nir files to LIBGLSL_FILES

libglsl_la_SOURCES includes both NIR_FILES and LIBGLSL_FILES, so for
libglsl.la consumers, this is a no-op. libnir.la however no longer uses
any GLSL IR infrastructure and can be used without also linking to
libglsl.la.

Acked-by: Matt Turner <mattst88@gmail.com>

mesa: Use separate indices for UBO & SSBO during binding

Previously we were treating the binding index for Uniform Buffer
Objects and Shader Storage Buffer Objects as being part of the
combined BufferInterfaceBlocks array.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93322
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

mesa: Map program UBOs and SSBOs to Interface Blocks

v2:
 * Fill UboInterfaceBlockIndex and SsboInterfaceBlockIndex in
   split_ubos_and_ssbos (Iago)

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

mesa: docs: Add link to planet.freedesktop.org

The freedesktop.org blog feeds aren't mentioned on either mesa3d.org or
any of the graphics project wikis (including the DRI wiki) on
freedeskop.org.  Fix that by linking to it from the sidebar.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

freedreno: add ir3_compiler to gitignore

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

gallium: add a RESQ opcode to query info about a resource

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

gallium: add PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT

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

gallium: add PIPE_SHADER_CAP_MAX_SHADER_BUFFERS

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

tgsi: update atomic op docs

Specify that the operation only applies to the x component, not
per-component as previously specified. This is unnecessary for GL and
creates additional complications for images which need to support these
operations as well.

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

tgsi: add a is_store property

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

tgsi: provide a way to encode memory qualifiers for SSBO

Each load/store on most hardware can specify what caching to do. Since
SSBO allows individual variables to also have separate caching modes,
allow loads/stores to have the qualifiers instead of attempting to
encode them in declarations.

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

ureg: add buffer support to ureg

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

tgsi: add ureg support for image decls

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

glsl: Ensure 64bits shift is used.

I believe that `1u << x`, where x >= 32 yields undefined results
according to the C standard.

Particularly MSVC says `warning C4334: '<<' : result of 32-bit shift
implicitly converted to 64 bits (was 64-bit shift intended?)`.

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

mesa/main: Avoid `void function returning a value` warning.

Trivial.

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

configure.ac: add --enable-profile

For profiling mesa's code, especially llvmpipe, PROFILE should be
defined. Currently, this define can only be generated if mesa is
built using scons.
This patch makes it possible to generate this define also when building
mesa through automake tools.

v2:

- Change --enable-llvmpipe-profile to --enable-profile
- Add -fno-omit-frame-pointer to CFLAGS and CXXFLAGS when enabling profile

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>

nine: allow fragment shader POSITION and FACE to be system values

Reported-by: Axel Davy <axel.davy@ens.fr>

vl: allow fragment shader POSITION to be a system value

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com
Reviewed-by: Brian Paul <brianp@vmware.com>

util/pstipple: allow fragment shader POSITION to be a system value

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com
Reviewed-by: Brian Paul <brianp@vmware.com>

st/mesa: add support for POSITION and FACE system values

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com
Reviewed-by: Brian Paul <brianp@vmware.com>

tgsi/scan: update for POSITION and FACE sytem values

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium: add caps for POSITION and FACE system values

v2: document the integer behavior

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com
Reviewed-by: Brian Paul <brianp@vmware.com>

program: add a helper for rewriting FP position input to sysval

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com
Reviewed-by: Brian Paul <brianp@vmware.com>

glsl: optionally declare gl_FragCoord & gl_FrontFacing as system values

Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com
Reviewed-by: Brian Paul <brianp@vmware.com>

tgsi/ureg: handle redundant declarations in ureg_DECL_system_value

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

tgsi/ureg: remove index parameter from ureg_DECL_system_value

It can be trivially derived from the number of already declared system
values. This allows ureg users not to worry about which index to choose.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

st/mesa: remove dead code from mesa_to_tgsi

These aren't part of ARB_fragment_program.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

radeon, si: Use TGSI chan name defines in lp_build_emit_fetch() calls

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

gallium/aux: Use TGSI chan name defines inplace of literals

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: check that internalformat of CopyTexImage*D is not 1, 2, 3, 4

The piglit copyteximage check has recently been augmented to test this, but
apparently it hasn't been fixed in Mesa so far.

This language also already appears in the OpenGL 2.1 spec (Ian).

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

i965/compiler: Enable more lowering in NIR

We don't need these for GLSL or ARB, but we need them for SPIR-V

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

nir/algebraic: Add more lowering

This commit adds lowering options for the following opcodes:

 - nir_op_fmod
 - nir_op_bitfield_insert
 - nir_op_uadd_carry
 - nir_op_usub_borrow

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

nir/opcodes: Fix up uadd_carry and usub_borrow

Both were defined as returning bool but the gpu_shader5 functions are
defined to return int.  Also, we had the parameters for usub borrwo
backwards in the folding expression.

Reviewed-by: Matt Turner <mattst88@gmail.com>

nvc0: add ARB_indirect_parameters support

I chose to make separate macros for this due to the additional
complexity and extra scratch usage.

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

st/mesa: expose ARB_indirect_parameters when the backend driver allows

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

mesa: add support for ARB_indirect_parameters draw functions

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

mesa: add parameter buffer, used for ARB_indirect_parameters

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

glapi: add ARB_indirect_parameters definitions

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

nvc0: add support for real ARB_multi_draw_indirect

The draw groups are now split up into groups of 32 if there's a
non-packed stride, or in groups of 400-500 if the draw data is packed.

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

nvc0: adjust indirect draw macros to handle multiple draws at once

These are still invoked one at a time, but the underlying macro can
handle multiple draws.

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

st/mesa: add support for new mesa indirect draw interface

This shifts all indirect draws to go through the new function. If the
driver doesn't have support for multi draws, we break those up and
perform N draws. Otherwise, we pass everything through for just a single
draw call.

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

gallium: add caps to expose support for multi indirect draws

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

gallium: add sufficient draw interface to allow new indirect features

This makes it possible to support indirect multidraws as well as having
the number of such draws to come from a separate GPU resource.

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

vbo: create a new draw function interface for indirect draws

All indirect draws are passed to the new draw function. By default
there's a fallback implementation which pipes it right back to
draw_prims, but eventually both the fallback and draw_prim's support for
indirect drawing should be removed.

This should allow a backend to properly support ARB_multi_draw_indirect
and ARB_indirect_parameters.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

llvmpipe: do 64bit plane calculations in the sse path

The sse path was pretty much disabled for practical purposes because the
largest allowed fb size was 128x128. So, adapt it for 64bit plane calculations.
This is actually not that difficult, though a problem is that we can't do
a signed 32x32->64bit mul, only unsigned, so need to fix that up. Overall,
the code still looks reasonable, though it's not like changes there in
setup really make much of a difference in the end...

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

llvmpipe: don't store eo as 64bit int

eo, just like dcdx and dcdy, cannot overflow 32bit.
Store it as unsigned though just in case (it cannot be negative, but
in theory twice as big as dcdx or dcdy so this gives it one more bit).
This doesn't really change anything, albeit it might help minimally on
32bit archs.

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

llvmpipe: use aligned data for the assembly program in setup

Back in the day (before 24678700edaf5bb9da9be93a1367f1a24cfaa471) the values
were not actually in a struct but even then I can't see why we didn't simply
align the values. Especially since it's trivial to do so.
(Not that it actually matters since the code is pretty much unused for now.)

Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>

draw: initialize prim header flags when clipping lines

Otherwise, clipped lines would have undefined stippling reset bit if line
stippling is enabled.
(Untested, and I just assume copying over the bits from the original line
is actually the right thing to do.)

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>

draw: fix line stippling with unfilled prims

The unfilled stage was not filling in the prim header, and the line stage
then decided to reset the stipple counter or not based on the uninitialized
data. This causes some failures in conform linestipple test (albeit quite
randomly happening depending on environment).
So fill in the prim header in the unfilled stage - I am not entirely sure
if anybody really needs determinant after that stage, but there's at least
later stages (wide line for instance) which copy over the determinant as well.

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

glsl: replace null check with assert

This was added in 54f583a20 since then error handling has improved.

The test this was added to fix now fails earlier since 01822706ec

Reviewed-by: Matt Turner <mattst88@gmail.com>

i965: use _mesa_delete_buffer_object

This is more future-proof, plugs the memory leak of Label and properly
destroys the buffer mutex.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: "11.0 11.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

i915: use _mesa_delete_buffer_object

This is more future-proof, plugs the memory leak of Label and properly
destroys the buffer mutex.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: "11.0 11.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

radeon: use _mesa_delete_buffer_object

This is more future-proof, plugs the memory leak of Label and properly
destroys the buffer mutex.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: "11.0 11.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

st/mesa: use _mesa_delete_buffer_object

This is more future-proof than the current code.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: "11.0 11.1" <mesa-stable@lists.freedesktop.org>

mesa/bufferobj: make _mesa_delete_buffer_object externally accessible

gl_buffer_object has grown more complicated and requires cleanup. Using this
function from drivers will be more future-proof.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: "11.0 11.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

llvmpipe: use sse2 conv code for altivec

In lp_build_conv() and lp_build_conv_auto(), there is a special case of
conversion when sse2 is present. That code path is suitable without any
changes to altivec, because all the functions that are called in that
code path already support altivec.

This patch increase the FPS in POWER arch across the board
between 10%-25%

I checked ipers, glxgears, glxspheres64, openarena, xonotic and glmark2.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

radeonsi: adjust the parameters of si_shader_dump

The function will be extended to dump all binaries shaders will consist of,
so si_shader* makes sense here.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: move si_shader_dump call out of si_compile_llvm

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: inline si_shader_binary_read

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: move si_shader_dump call out of si_shader_binary_read

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: separate shader dumping code to si_shader_dump and *_dump_stats

Eventually, I'd like to dump stats for several combined binaries, which is
why you don't see a binary parameter in si_shader_dump_stats

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: add si_shader_destroy_binary

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: don't pass si_shader to si_compile_llvm

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: move si_shader_binary_upload out of si_compile_llvm

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: always keep shader code, rodata, and relocs in memory

We won't compile shaders in draw calls, but we will concatenate shader
binaries according to states in draw calls, so keep the binaries.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: don't pass si_shader to si_shader_binary_read

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: don't pass si_shader to si_shader_binary_read_config

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: add struct si_shader_config

There will be 1 config per variant, which will be a union of configs
from {prolog, main, epilog}. For now, just add the structure.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: move NULL exporting into a separate function

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: move MRT color exporting into a separate function

This will be used by a fragment shader epilog.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: use EXP_NULL for pixel shaders without outputs

This never happens currently.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: only use LLVMBuildLoad once when updating color outputs at the end

without LLVMBuildStore.

So:
- do LLVMBuildLoad
- update the values as necessary
- export

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: export "undef" values for undefined PS outputs

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: move MRTZ export into a separate function

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: simplify setting the DONE bit for PS exports

First find out what the last export is and simply set the DONE bit there.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: set SPI color formats and CB_SHADER_MASK outside of compilation

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: write all MRTs only if there is exactly one output

This doesn't fix a known bug, but better safe than sorry.

Also, simplify the expression in si_shader.c.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: determine SPI_SHADER_Z_FORMAT outside of shader compilation

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

radeonsi: determine DB_SHADER_CONTROL outside of shader compilation

because the API pixel shader binary will not emulate alpha test one day,
so the KILL_ENABLE bit must be determined elsewhere.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

tgsi/scan: set which color components are read by a fragment shader

This will be used by radeonsi.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

tgsi/scan: fix tgsi_shader_info::reads_z

This has no users in Mesa.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

tgsi/scan: set if a fragment shader writes sample mask

This will be used by radeonsi.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

glsl: Disallow vectorization of vector_insert/extract.

vector_insert takes a vector, a scalar location, and a scalar value,
and produces a new vector with that component updated.  As such, it
can't be vectorized properly.

vector_extract takes a vector and a scalar location, and returns
that scalar component of the vector.  Vectorization doesn't really
make any sense.

Treating both as horizontal operations makes sure the vectorizer
won't try to touch these.

Found by inspection.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>

softpipe: tell draw about the vertex layout we want

This makes it more similar to llvmpipe. It also allows us to let draw emit
code handle things like getting zeros for non-existing vs outputs
automatically. There probably isn't really any overhead either way, there isn't
really any "simply copy everything" code in the emit path it would copy each
attrib individually just the same. Likewise, we still do another mapping step
in softpipe as the layout may still not match exactly (same as in llvmpipe,
should probably nuke the pointless mapping in both drivers).

This fixes the piglit arb_fragment_layer_viewport no_gs/no_write tests.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

llvmpipe: use ints not unsigned for slots

They can't actually be 0 (as position is there) but should avoid confusion.

This was supposed to have been done by af7ba989fb5a39925a0a1261ed281fe7f48a16cf
but I accidentally pushed an older version of the patch in the end...
Also prettify slightly. And make some notes about the confusing and useless
fs input "map".

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>