glsl: Detect do-while-false loops and unroll them

Previously loops like

   do {
      // ...
   } while (false);

that did not have any other loop-branch instructions would not be
unrolled.  This is commonly used to wrap multiline preprocessor macros.

This produces IR like

    (loop (
       ...
       break
    ))

Since limiting_terminator was NULL, the loop unroller would
throw up its hands and say, "I don't know how many iterations.  How
can I unroll this?"

We can detect this another way.  If there is no limiting_terminator
and the only loop-branch is a break as the last IR, there's only one
iteration.

On my very old checkout of shader-db, this removes a loop from Orbital
Explorer, but it does not otherwise affect the shader.  The loop removed
is the one the compiler inserts surrounding the switch statement.

This change does prevent some seriously bad code generation in some
patches to meta shaders that I recently sent out for review.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>

i965: Enable tiled mem_copy with sRGB-formatted resources

RGBA8 and BGRA8 unorm formats are compatible with the various
mem_copy functions. Their sRGB counterparts are also compatible
because they're also color-renderable (of importance when the
specified resource is a readbuffer) and they share the same
physical layout.

Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

mesa: replace for loop with bitshifting in supported_buffer_bitmask()

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

mesa: updates some comments in buffers.c

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

mesa: make _mesa_draw_buffers() static

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

mesa: make _mesa_draw_buffer() static

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

mesa: make _mesa_read_buffer() static

Not called from any other file.  Remove _mesa_ prefix and update comments.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

mesa: move declaration of buffer var in handle_first_current()

Declare the var in the scopes where it's used.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

mesa: use gl_buffer_index in a few places

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

st/mesa: remove useless break statement

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

st/mesa: rename st_readpixels to st_ReadPixels

To match the convention of other device driver functions.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

st/mesa: fix frontbuffer glReadPixels regressions

The change "mesa/readpix: Don't clip in _mesa_readpixels()" caused a
few piglit regressions.  The failing tests use glReadPixels to read
from the front color buffer.  The problem is we were trying to read
from a non-existant front color buffer.  The front color buffer is
created on demand in st/mesa.  Since the missing buffer bounds were
effectively 0 x 0 the glReadPixels was totally clipped and returned
early.

The fix involves creating the real front color buffer when we're about
to try reading from it.

Tested with llvmpipe and VMware driver on Linux, Windows.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94253
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94254
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94257
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

gallium/radeon: Correctly translate colorswaps for big endian

The current code in r600_translate_colorswap uses the swizzle information
to determine which colorswap to use.

This works for BE & LE when the nr_channels is <4, but when nr_channels==4
(e.g. PIPE_FORMAT_A8R8G8B8_UNORM), this method can not be used for both BE
and LE, because the swizzle info is the same for both of them.

As a result, r600g doesn't support 24bit color formats, only 16bit, which
forces the user to choose 16bit color in X server.

This patch fixes this bug by separating the checks for LE and BE and
adapting the swizzle conditions in the BE part of the checks.

Tested on an Evergreen GPU (Cedar GL FirePro 2270) running inside POWER7
Big-Endian Machine.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
CC: "11.2" "11.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: use sizeof on the correct type

Before the luminance stride was based on the size of GL_FLOAT
which is just the type constant (0x1406). Change it to use the
size of GLfloat.

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

tgsi/scan: handle holes between VS inputs, assert-fail in other cases

"st/mesa: overhaul vertex setup for clearing, glDrawPixels, glBitmap"
added a vertex shader declaring IN[0] and IN[2], but not IN[1].

Drivers relying on tgsi_shader_info can't handle holes in declarations,
because tgsi_shader_info doesn't track that.

This is just a quick workaround meant for stable that will work for vertex
shaders.

This fixes radeonsi DrawPixels and CopyPixels crashes.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Brian Paul <brianp@vmware.com>

docs: Mark off GL_OES_shader_image_atomic as done.

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

i965/fs: Return result of image atomic in a register of the expected type.

So the result is of float type if we're implementing the float
overload of imageAtomicExchange.  This is the only back-end change
required to support OES_shader_image_atomic AFAICT.

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

glsl: Implement the required built-in functions when OES_shader_image_atomic is enabled.

This is basically just the same atomic functions exposed by
ARB_shader_image_load_store, with one exception:

    "highp float imageAtomicExchange(
         coherent IMAGE_PARAMS,
         float data);"

There's no float atomic exchange overload in the original
ARB_shader_image_load_store or GL 4.2, so this seems like new
functionality that requires specific back-end support and a separate
availability condition in the built-in function generator.

v2: Move image availability predicate logic into a separate static
    function for clarity.  Had to pull out the image_function_flags
    enum from the builtin_builder class for that to be possible.

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

glsl: Add usual extension boilerplate for OES_shader_image_atomic.

v2: No need for extension enable bits (Ilia).

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

mesa: Add extension table entry for OES_shader_image_atomic.

v2: No need for extension enable bits (Ilia).

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

nvc0: rename 3d binding points to NVC0_BIND_3D_XXX

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: rename 3d dirty flags to NVC0_NEW_3D_XXX

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: prefix compute macros with _CP_ instead of _COMPUTE_

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: rename NVXX_COMPUTE to NVXX_CP

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: rename nvc0_context::dirty to nvc0_context::dirty_3d

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: add missing emission of locked load predicate

Like unlocked store on shared memory, locked store can fail and the
second dest which is a predicate must be emitted.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org

nvc0/ir: add ld lock/st unlock emission on GK104

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: restore OP_SELP to be a regular instruction

Actually OP_SELP doesn't need to be a compare instruction. Instead we
just need to set the NOT modifier when building the instruction.
While we are at it, fix the dst register type and use a GPR.

Suggested by Ilia Mirkin.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

svga: unbind index buffer when drawing non-indexed primitives

Silences a warning reported by the svga3d device.

v2: also null-out the index buffer pointer

Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>

mesa: add GL_EXT_texture_border_clamp support

This extension is identical to GL_OES_texture_border_clamp. But dEQP has
tests that want the EXT variant.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

mesa: add GL_OES_texture_border_clamp support

Only minor differences to the existing ARB_texture_border_clamp support.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

mesa: bump version

11.2 has been branched, we're on 11.3 now.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

nouveau: update the Makefile.sources list

Reflect the nv50->g80 change and the new gm107_texture header.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

radeonsi: implement binary shaders & shader cache in memory (v2)

v2: handle _mesa_hash_table_insert failure
    other cosmetic changes

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

gallium/radeon: remove unused radeon_shader_binary_free_* functions

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

radeonsi: make radeon_shader_reloc name string fixed-sized

This will simplify implementations of binary shaders.

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

radeonsi: move some struct si_shader members to new struct si_shader_info

This will be part of shader binaries.

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

radeonsi: use smaller types for some si_shader members

in order to decrease the shader size for a shader cache.

v2: add & use SI_MAX_VS_OUTPUTS

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

radeonsi: enable compiling one variant per shader

Shader stats from VERDE:

Default scheduler:

Totals:
SGPRS: 491272 -> 488672 (-0.53 %)
VGPRS: 289980 -> 311093 (7.28 %)
Code Size: 11091656 -> 11219948 (1.16 %) bytes
LDS: 97 -> 97 (0.00 %) blocks
Scratch: 1732608 -> 2246656 (29.67 %) bytes per wave
Max Waves: 78063 -> 77352 (-0.91 %)
Wait states: 0 -> 0 (0.00 %)

Looking at some of the worst regressions, I get:
- The VGPR increase seems to be caused by the fact that if PS has used less
  than 16 VGPRs, now it will always use 16 VGPRs and sometimes even 20.
  However, the wave count remains at 10 if VGPRs <= 24, so no harm there.
- The scratch increase seems to be caused by SGPR spilling.
  The unnecessary SGPR spilling has been an ongoing issue with the compiler
  and it's completely fixable by rematerializing s_loads or reordering
  instructions.

SI scheduler:

Totals:
SGPRS: 374848 -> 374576 (-0.07 %)
VGPRS: 284456 -> 307515 (8.11 %)
Code Size: 11433068 -> 11535452 (0.90 %) bytes
LDS: 97 -> 97 (0.00 %) blocks
Scratch: 509952 -> 522240 (2.41 %) bytes per wave
Max Waves: 79456 -> 78217 (-1.56 %)
Wait states: 0 -> 0 (0.00 %)

VGPRs - same story as before. The SI scheduler doesn't spill SGPRs so much
and generally spills way less than the default scheduler.
(522240 spills vs 2246656 spills)

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

radeonsi: print full shader name before disassembly

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

radeonsi: compile non-GS middle parts of shaders immediately if enabled

Still disabled.

Only prologs & epilogs are compiled in draw calls, but each variant of those
is compiled only once per process.

VS is always compiled as hw VS.
TES is always compiled as hw VS.

LS and ES stages are always compiled on demand.

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

radeonsi: rework polygon stippling for PS prolog

Don't use the pstipple module.

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

radeonsi: add PS prolog

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

radeonsi: add PS epilog

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

radeonsi: add TCS epilog

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

radeonsi: add VS epilog

It only exports the primitive ID.
Also used by TES when it's compiled as VS.

The VS input location of the primitive ID input is v2.

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

radeonsi: add VS prolog

This is disabled with use_monolithic_shaders = true.

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

radeonsi: first bits for non-monolithic shaders

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

radeonsi: add code for dumping all shader parts together (v2)

v2: unify some code into si_get_shader_binary_size

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

radeonsi: add code for combining and uploading shaders from 3 shader parts

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

radeonsi: fail compilation if non-GS non-CS shaders have rodata

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

radeonsi: separate 2 pieces of code from create_function

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

radeonsi: add samplemask parameter to si_export_mrt_color

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

radeonsi: add start_instance parameter to get_instance_index_for_fetch

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

radeonsi: separate out shader key bits for prologs & epilogs

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

radeonsi: compute how many input VGPRs fragment shaders have

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

radeonsi: compute how many input SGPRs and VGPRs shaders have

Prologs (shader binaries inserted before the API shader binary) need to
know this, so that they won't change the input registers unintentionally.

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

gallium/radeon: add basic code for setting shader return values

LLVMBuildInsertValue will be used on return_value.

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

nvc0: enable compute shaders on Fermi

Kepler compute support is really different than Fermi and it's not
ready yet.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: add atomics support on shared memory for Fermi

Changes from v3:
 - move the previous OP_SELP change to the previous commit

Changes from v2:
 - make sure the op is OP_SELP when emitting the predicate and add one
   assert
 - use bld.getSSA() for mkOp2()
 - add cross edge between tryLockAndSetBB and joinBB

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: make OP_SELP a compare instruction

This OP_SELP insn will be used to handle compare and swap subops.

Changes from v2:
 - fix logic for GK110+

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: add lock/unlock subops for load/store

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: use s[] addr space for shared buffers

Shared memory address space (FILE_MEMORY_SHARED) must be used instead
of global memory when a shared memory area is declared.

Changes from v2:
 - oops, do not remove TGSI_FILE_BUFFER in a switch in
   nv50_ir_from_tgsi.cpp

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: reduce likelihood of collision for real buffers on Fermi

Reduce likelihood of collision with real buffers by placing the
hole at the top of the 4G area. This fixes some indirect draw+compute
tests with large buffers.

Suggested by Ilia Mirkin.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: invalidate compute state when switching pipe contexts

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: add support for indirect compute on Fermi

When indirect compute is used, the size of the grid (in blocks) is
stored as three integers inside a buffer. This requires a macro to
set up GRIDDIM_YX and GRIDDIM_Z.

Changes from v2:
 - do not launch the grid if the number of groups for a dimension is 0

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: bind textures/samplers for compute on Fermi

Textures and samplers don't seem to be aliased between COMPUTE and 3D.

Changes from v2:
 - refactor the code to share (almost) the same logic between 3d and
   compute

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: bind shader buffers for compute on Fermi

This is loosely based on 3D. Shader buffers are bound on c15 (the
driver constbuf) at offset 0x200.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: bind driver constbuf for compute on Fermi

Changes from v3:
 - add new validation state for COMPUTE driver constbuf

Changes from v2:
 - always bind the driver consts even if user params come in via clover

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: add a new validation state for 3D driver constbuf

This will be used to invalidate 3D driver constbuf when using COMPUTE
and vice-versa. This is needed because this CB contains a bunch of
useful information like the addrs of shader buffers.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: bind constant buffers for compute on Fermi

Loosely based on 3D.

Changs from v3:
 - invalidate COMPUTE CBs after validating 3D CBs because they are
   aliased

Changes from v2:
 - get rid of the 's' param to nvc0_cb_bo_push() because it doesn't
   matter to upload constbufs for compute using the 3d chan

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: allocate an area for compute user constbufs

For compute shaders, we might need to upload uniforms.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50: do not advertise about compute shaders

Compute shaders are totally unsupported. This avoids Clover to
report that OpenCL is supported on Tesla because it's a lie.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Pierre Moreau <pierre.morrow@free.fr>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

docs: Correct typo in LLVMpipe envvar description

Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

st/mesa: force depth mode to GL_RED for sized depth/stencil formats

See commit 9db2098d for the i965 version of this.

This fixes depth in a bunch of dEQP EXT_texture_border_clamp tests. And
probably other ones as well.

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

egl_dri2: set correct error code if swapbuffers fails

A return value of '-1' means that there was error during swap with a
window drawable, in this case we set error as EGL_BAD_NATIVE_WINDOW.

v2: coding style cleanup, better commit message

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Cc: "11.0 11.1" <mesa-stable@lists.freedesktop.org
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl: move Null check to eglGetSyncAttribKHR to prevent Segfault

Null-check on "*value" is currently done in _eglGetSyncAttrib, which is
after eglGetSyncAttribKHR dereferences it.

Move the check a layer up (in the beginning of eglGetSyncAttribKHR) to
avoid segfaults.

Cc: "11.0 11.1" <mesa-stable@lists.freedesktop.org
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
[Emil Velikov: tweak commit message, add stable tag]
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

meta/copy_image: use precomputed dst_internal_format to avoid segfault

If the destination is a renderbuffer, dst_tex_image will be NULL. This
fixes the *to_renderbuffer dEQP copy image tests.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Cc: mesa-stable@lists.freedesktop.org

mesa: add GL_OES_texture_stencil8 support

It's basically the same thing as GL_ARB_texture_stencil8 except that
glCopyTexImage isn't supported, so add STENCIL_INDEX to the list of
invalid GLES formats for glCopyTexImage.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>

st/mesa: fix pbo uploads

 - LOD must be provided in .w for TXF (even for buffer textures)
 - User buffer must be valid at draw time
 - Must have a sampler associated with the sampler view

This makes PBO uploads work again on nouveau.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: check fbo completeness based on internal format, not driver format

The base format is a function of the user-requested format, while the
driver format is not. So we should use the base format instead.

The driver format can be anything. Specifically in the stencil-only
case, it might be a depth/stencil format. However we still want to
refuse such an attachment when bound to GL_DEPTH.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: small optimization of _mesa_expand_bitmap()

Avoid a per-pixel multiply.

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

mesa: add special case ubyte[4] / BGRA conversion function

This reduces a glTexImage(GL_RGBA, GL_UNSIGNED_BYTE) hot spot in when
storing the texture as BGRA.

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

st/mesa: implement a simple cache for glDrawPixels

Instead of discarding the texture we created, keep it around in case
the next glDrawPixels draws the same image again.  This is intended
to help application which draw the same image several times in a row,
either within a frame or subsequent frames.

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

llvmpipe: add a few const qualifiers

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

trace: assorted whitespace and formatting fixes

Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>

trace: remove unneeded inline qualifiers

Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>

glsl: fix emit_inline_matrix_constructor for doubles

Specifically, for the case where we initialize a dmat with a source
matrix that has fewer columns/rows.

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

glsl: Mark float constants as such

So we don't generate double to float conversion code

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

glsl: fix indentation in emit_inline_matrix_constructor

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

glsl: fix standalone compiler

Need to set some non-zero limits for MaxCombinedUniformComponents,
otherwise we hit an "Too many <type> shader uniform components" error
in the linker.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

st/mesa: disable depth/stencil/alpha tests in PBO upload

Noticed by Brian Paul.

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

svga: allow non-contiguous VS input declarations

This fixes a glDrawPixels regression since b63fe0552b5f.  The new
quad-drawing utility code uses 3 vertex attributes (xyz, rgba, st).
For glDrawPixels path we don't use the rgba attribute so there's a
gap in the TGSI VS input declarations (INPUT[0] = pos, INPUT[2] =
texcoord).  The TGSI->VGPU10 translations code did not handle this
correctly.  I missed this because my VM was configured for HWv11
while testing.

Another way to fix this would be to change the tgsi_scan.c code so
that the tgsi_shader_info::num_inputs (and num_outputs) included
the unused inputs/outputs.  These counts would then actually be
"max input register index + 1" rather than "number of used inputs".
But that change could impact all drivers so put it off for now.

No regressions found with piglit or typical GL apps.

v2: also update alloc_system_value_index() to use info.file_max[]

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

gallivm: Check whether to stop disassemble only for x86

Because the if statement that checks whether we have a return
statement is valid only on x86, surround it with X86 or X86-64
arch defines

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

gallivm: use sstream for dissasembling

Currently, disassemble() directly prints to stdout. This has broke the
profiling support for llvmpipe JIT code.

This patch redirects the output to an sstream object, which is then
either gets printed to stdout (for assembly debugging) or gets written
to a file in /tmp/ (for profiling support).

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

trace: fix new gcc6 warnings

src/gallium/drivers/trace/tr_context.c:1713:39: warning: ‘rbug_blocker_flags’ defined but not used [-Wunused-const-variable]
 static const struct debug_named_value rbug_blocker_flags[] = {
                                       ^~~~~~~~~~~~~~~~~~

Note that use of rbug_blocker_flags was removed in:

commit 5494332128da0b2826e85df5eeaa878bb5c30a4e
Author: Jakob Bornecrantz <jakob@vmware.com>
Date:   Wed May 12 19:26:19 2010 +0100

    trace: Remove rbug from trace

Signed-off-by: Rob Clark <robdclark@gmail.com>

gallium/auxiliary: fix new gcc6 warnings

src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c: In function ‘mm_bufmgr_create_from_buffer’:
src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c:288:4:
warning: statement is indented as if it were guarded by... [-Wmisleading-indentation]
    if(mm->map)
    ^~
src/gallium/auxiliary/pipebuffer/pb_bufmgr_mm.c:286:1: note:
...this ‘if’ clause, but it is not
 if(mm->heap)
 ^~

Signed-off-by: Rob Clark <robdclark@gmail.com>

gallium/hud: fix new gcc6 warnings

src/gallium/auxiliary/hud/font.c:234:22: warning: ‘Fixed8x13_Character_159’ defined but not used [-Wunused-const-variable]
 static const GLubyte Fixed8x13_Character_159[] = {  9,  0,  0,  0,  0, 0,  0,170,  0,  0,  0,130,  0,  0,  0,130,  0,  0,  0,130,  0,  0, 0,170,  0,  0,  0,  0,  0};
                      ^~~~~~~~~~~~~~~~~~~~~~~
.... many more..

These are simply unused, just #if 0 them out for now, in case someone
wants to use them in the future.

Signed-off-by: Rob Clark <robdclark@gmail.com>

mesa: fix new gcc6 warnings

src/mesa/main/texstore.c:92:22: warning: ‘map_1032’ defined but not used [-Wunused-const-variable]
 static const GLubyte map_1032[6] = { 1, 0, 3, 2, ZERO, ONE };
                      ^~~~~~~~
src/mesa/main/texstore.c:91:22: warning: ‘map_3210’ defined but not used [-Wunused-const-variable]
 static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE };
                      ^~~~~~~~
src/mesa/main/texstore.c:90:22: warning: ‘map_identity’ defined but not used [-Wunused-const-variable]
 static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE };
                      ^~~~~~~~~~~~

These appear to be unused since:

commit 8ec6534b266549cdc2798e2523bf6753924f6cde
Author:     Iago Toral Quiroga <itoral@igalia.com>
AuthorDate: Wed Oct 15 13:42:11 2014 +0200

    mesa: Use _mesa_format_convert to implement texstore_rgba.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

glsl: fix new gcc6 warnings

src/compiler/glsl/lower_discard_flow.cpp:79:1: warning: ‘ir_visitor_status {anonymous}::lower_discard_flow_visitor::visit_enter(ir_loop_jump*)’ defined but not used [-Wunused-function]
 lower_discard_flow_visitor::visit_enter(ir_loop_jump *ir)
 ^~~~~~~~~~~~~~~~~~~~~~~~~~

The base class method that was intended to be overridden was
'visit(ir_loop_jump *ir)', not visit_enter().

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>