Commit graph

64980 commits

Author SHA1 Message Date
Ian Romanick
9328440ef7 glsl: Make sure fields after small structs have correct padding
Previously the linker would correctly calculate the layout, but the
lower_ubo_reference pass would not apply correct alignment to fields
following small (less than 16-byte) nested structures.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83533
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 8e01c66da6)
2014-09-27 18:56:39 +01:00
Michel Dänzer
1ac204121b st/mesa: Use PIPE_USAGE_STAGING for GL_STATIC/DYNAMIC/STREAM_READ buffers
Such buffers can only be useful by reading from them with the CPU, so we
need to make sure CPU reads are fast.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84178
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 7e55c3b352)
2014-09-27 18:56:39 +01:00
Ilia Mirkin
fef6059a81 gm107/ir: take relative pfetch offset into account
There is no dedicated instruction for this, so just combine it with the
constant offset.

Acked-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit a5bbfeda97)
2014-09-27 18:56:38 +01:00
Ilia Mirkin
34809f8eef gm107/ir: add support for indirect const buffer selection
This was missed in the commit that enabled it for fermi/kepler as part
of ARB_gpu_shader5

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit cdc4de1215)
2014-09-27 18:56:38 +01:00
Ilia Mirkin
9a79018840 gm107/ir: fix texture argument order
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 0532a5fd00)
2014-09-27 18:56:38 +01:00
Ilia Mirkin
5aff846a60 gm107/ir: fix manual TXD for array targets
This parallels the fixes in commit afea9bae.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit d3c3bba6d0)
2014-09-27 18:56:38 +01:00
Ilia Mirkin
fb4e23626f nv50/ir: avoid deleting pseudo instructions too early
What happens is that a SPLIT operation is part of the spill node, and as
a pseudo op, the instruction gets erased after processing its first def.
However the later defs still need to refer to it, so instead delay
deleting until after that whole RA node is done processing.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79462
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 0147c10c5f)
2014-09-27 18:56:38 +01:00
Kenneth Graunke
607d0b9578 mesa: Set correct array element in vbo_exec_vtx_init.
I'm not familiar with this code, but this sure appears to be a typo.
It looks like the intent is to set each array element, not arrays[0]
each time.  Notably, the loop just below uses "array", not "arrays".

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Fredrik Höglund <fredrik@kde.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit f81052dc9b)
2014-09-27 18:56:38 +01:00
Kenneth Graunke
4fce87bcee mesa: Use proper structure for glGet*(GL_TEXTURE_COORD_ARRAY*).
The code in get.c that handles this uses ctx->Array.VAO->VertexAttrib,
which is a gl_vertex_attrib_array structure, not a gl_client_array.

The offsets of all fields happened to be the same in both structures, at
least on x86_64.  "Size," "Type," and "Stride" are obviously the same:
both structures start with the same fields, in the same order.

"Enabled" is dicier: there are different fields before it in both
structures, including pointer sized values which might need special
alignment.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Fredrik Höglund <fredrik@kde.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit d0ec6e8509)
2014-09-27 18:56:37 +01:00
Marek Olšák
8e2d0f59f7 radeonsi: properly destroy the GS copy shader and scratch_bo for compute
Cc: 10.2 10.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
(cherry picked from commit dc05a9e4e0)
[Emil Velikov: remove unref scratch_bo, s/si_shader/si_pipe_shader/]
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2014-09-27 18:55:52 +01:00
Marek Olšák
4748d2f065 radeonsi: release GS rings at context destruction
Cc: 10.2 10.3 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
(cherry picked from commit 711623f7c8)
[Emil Velikov: s/ring/ring.buffer/]
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2014-09-27 18:55:07 +01:00
Andreas Pokorny
f74bca93b4 i915: Fix black buffers when importing prime fds
Width and Height of the imported image was never initialized from the
imported bo.

Cc: 10.2 10.3 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Andreas Pokorny <andreas.pokorny@canonical.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
(cherry picked from commit df341320c9)
2014-09-27 18:12:57 +01:00
Andreas Pokorny
ceebec140b egl/drm: expose KHR_image_pixmap extension
This changes enables EGL_KHR_image_pixmap in the egl drm platform, which is implemented
there but has not been advertised yet.

Cc: 10.2 10.3 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Andreas Pokorny <andreas.pokorny@canonical.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
(cherry picked from commit 53b614bfd3)
2014-09-27 18:12:51 +01:00
Roland Scheidegger
095a6a0af1 gallivm: fix idiv
ffeb77c7b0 had a typo which turned all signed
integer divisions into unsigned ones. Oops.
This gets us back the 51 little piglits
(all from glsl built-in-functions, fs/vs/gs-op-div-int-ivec2 and similar).

Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
(cherry picked from commit 5e1fcc6258)
2014-09-27 18:12:44 +01:00
rconde
04a9d7d44a gallivm,tgsi: fix idiv by zero crash
While the result of signed integer division by zero is undefined by glsl
(and doesn't exist with d3d10), we must not crash, so need to make sure we
don't get sigfpe much like udiv already does.
Unlike udiv where we return 0xffffffff (as required by d3d10) there is
no requirement right now to return anything specific so we use zero.

(cherry picked from commit ffeb77c7b0)
Nominated-by: Roland Scheidegger <sroland@vmware.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83570
2014-09-23 00:52:51 +01:00
Tom Stellard
d4289fc37b clover: Add support to mem objects for multiple destructor callbacks v2
The spec says that mem objects should maintain a stack of callbacks
not just one.

v2:
  - Remove stray printf.

Reviewed-by: Francisco Jerez <currojerez@riseup.net>

CC: "10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit c6d9801409)
2014-09-23 00:46:00 +01:00
Brian Paul
9599cd6a2f mesa: fix prog_optimize.c assertions triggered by SWZ opcode
The SWZ instruction can have swizzle terms >4 (SWIZZLE_ZERO, SWIZZLE_ONE).
These swizzle terms caused a few assertions to fail.
This started happening after the commit "mesa: Actually use the Mesa IR
optimizer for ARB programs." when replaying some apitrace files.

A new piglit test (tests/asmparsertest/shaders/ARBfp1.0/swz-08.txt)
exercises this.

Cc: "10.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
(cherry picked from commit 7b2c703244)
2014-09-23 00:45:21 +01:00
Richard Sandiford
27f70a9273 swrast: Fix handling of MESA_FORMAT_L8A8_SRGB for big-endian
Luminance is the least-significant byte of the uint16, rather than the
lowest byte in memory.  Other parts of mesa already handle this correctly
for big-endian, and swrast already handles other MESA_FORMAT_x8y8 formats
correctly.  This case was just an odd-one-out.

Signed-off-by: Richard Sandiford <rsandifo@linux.vnet.ibm.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit ecc48f83c8)
2014-09-23 00:45:01 +01:00
Richard Sandiford
0a6e33ea74 mesa: Fix alpha component in unpack_R8G8B8X8_SRGB.
The function was using the "X" component as the alpha channel,
rather than setting alpha to 1.0.

Signed-off-by: Richard Sandiford <rsandifo@linux.vnet.ibm.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 3ff5c6a6c4)
2014-09-23 00:44:30 +01:00
Emil Velikov
18571edea8 docs: Add 10.3 sha256 sums, news item and link release notes
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2014-09-19 20:01:04 +01:00
Emil Velikov
1b12af300d docs: Update 10.3 release notes
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2014-09-19 19:43:01 +01:00
Emil Velikov
4c4846b588 Bump version to 10.3 (final)
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2014-09-19 19:27:45 +01:00
Connor Abbott
e471841048 r300g: set register classes before interferences
In commit 567e2769b8 ("ra: make the p, q
test more efficient") I unknowingly introduced a new requirement to the
register allocator API: the user must set the register class of all
nodes before setting up their interferences, because
ra_add_conflict_list() now uses the classes of the two interfering
nodes. i965 already did this, but r300g was setting up register classes
interleaved with setting up the interference graph. This led to us
calculating the wrong q total, and in certain cases
e78a01d5e6 (" ra: optimistically color
only one node at a time") made it so that this bug caused a segfault. In
particular, the error occurred if the q total was decremented to 1 below
0 for the last node to be pushed onto the stack.  Since q_total is an
unsigned integer, it overflowed to 0xffffffff, which is what
lowest_q_total happens to be initialzed to. This means that we would
fail the "new_q_total < lowest_q_total" check on line 476 of
register_allocate.c, and so the node would never be pushed onto the
stack, which led to segfaults in ra_select() when we failed to ever give
it a register.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82828
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
Tested-by: Pavel Ondračka <pavel.ondracka@email.cz>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
(cherry picked from commit afd82dcad1)
2014-09-16 22:18:34 +01:00
Gwenole Beauchesne
f86efb4285 i965: add support for RGBA dma_buf imports.
This allows for importing foreign buffers in RGB32 native endian
byte order, i.e. DRM_FORMAT_XBGR8888, and DRM_FORMAT_ABGR8888.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit e1c50abf8a)
2014-09-16 22:17:58 +01:00
Kenneth Graunke
84a58f462a i965: Mark delta_x/y as BAD_FILE if remapped away completely.
Commit afe3d1556f (i965: Stop doing
remapping of "special" regs.) stopped remapping delta_x/delta_y, and
additionally stopped considering them always-live.  We later realized
delta_x was used in register allocaiton, so we actually needed to remap
it, which was fixed in commit 23d782067a
(i965/fs: Keep track of the register that hold delta_x/delta_y.).

However, that commit didn't restore the "always consider it live" part.
If all the code using delta_x was eliminated, fs_visitor::delta_x would
be left pointing at its old register number.  Later code in register
allocation would handle that register number specially...even though it
wasn't actually delta_x.

To combat this, set delta_x/y to BAD_FILE if they're eliminated, and
check for that.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83127
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 78bd126194)
2014-09-16 22:17:40 +01:00
Richard Sandiford
605734780e gallivm: Fix uses of 2^24
Fallback cases in lp_bld_arit.c used 2^24 to mean "2 to the power 24",
but in C it's "2 xor 24", i.e. 26.  Fixed by using 1<< instead.

Signed-off-by: Richard Sandiford <rsandifo@linux.vnet.ibm.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit 1a65629ccc)
2014-09-16 22:16:58 +01:00
Ilia Mirkin
efe8fc687d nouveau: change internal variables to avoid conflicts with macro args
Reported by Coverity

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit b13a4ca3f7)
2014-09-16 22:16:16 +01:00
Brian Paul
051543962f mesa: fix _mesa_free_pipeline_data() use-after-free bug
Unreference the ctx->_Shader object before we delete all the pipeline
objects in the hash table.  Before, ctx->_Shader could point to freed
memory when _mesa_reference_pipeline_object(ctx, &ctx->_Shader, NULL)
was called.

Fixes crash when exiting the piglit rendezvous_by_location test on
Windows.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 0d73ac6b02)
2014-09-16 22:15:29 +01:00
Andreas Boll
b92ea2a10d gallium/util: add missing u_debug include
Needed for assert.
Fixes build on BE archs with -Werror=implicit-function-declaration.

In file included from
../../../../../src/gallium/auxiliary/draw/draw_fs.c:30:0:
../../../../../src/gallium/auxiliary/util/u_math.h: In function
'util_memcpy_cpu_to_le32':
../../../../../src/gallium/auxiliary/util/u_math.h:810:4: error:
implicit declaration of function 'assert'
[-Werror=implicit-function-declaration]
    assert(n % 4 == 0);
        ^

Cc: "10.3" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
(cherry picked from commit 2a13ff954d)
2014-09-16 22:14:03 +01:00
Ilia Mirkin
b0131d951b nouveau: only enable stencil func if the visual has stencil bits
The _Enabled property already has the relevant information.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 3c81de5851)
2014-09-16 22:13:45 +01:00
Ilia Mirkin
0c1f24b46c nouveau: only enable the depth test if there actually is a depth buffer
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 79959e5de5)
2014-09-16 22:13:00 +01:00
Maarten Lankhorst
a4d4ab929e nouveau: remove unneeded assert
No idea why it was added, but the code runs fine even on videos
where it triggers.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 8ab85bfcd5)
2014-09-16 22:08:48 +01:00
Maarten Lankhorst
2b43d48509 nouveau: rework reference frame handling
Fixes a regression from "nouveau/vdec: small fixes to h264 handling"

New picking order for frames:
 1. Vidbuf pointer matches.
 2. Take the first kicked ref.
 3. If that fails, take a ref that has a different last_used.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit a41aad8431)
2014-09-16 22:08:27 +01:00
Maarten Lankhorst
62f56a08af nouveau: fix MPEG4 hw decoding
Reorder some fields to make I-frame decoding work correctly.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 121ceb38f4)
2014-09-16 22:07:58 +01:00
Maarten Lankhorst
a3c52ce0b4 nouveau: re-allocate bo's on overflow
The BSP bo might be too small to contain all of the bsp data,
bump its size on overflow. Also bump inter_bo when this happens,
it might be too small otherwise.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: "10.2 10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit f6afed7076)
2014-09-16 22:07:23 +01:00
Ian Romanick
6c562f3d1a i965/vec4: Only examine virtual_grf_end for GRF sources
If the source is not a GRF, it could have a register >= virtual_grf_count.
Accessing virtual_grf_end with such a register would lead to
out-of-bounds access.  Make sure the source is a GRF before accessing
virtual_grf_end.

Fixes Valgrind complaints while compiling some shaders.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 7aeb853c90)
2014-09-16 22:06:03 +01:00
Iago Toral Quiroga
6240628e05 i965: Implement GL_PRIMITIVES_GENERATED with non-zero streams.
So far we have been using CL_INVOCATION_COUNT to resolve this query but this
is no good with streams, as only stream 0 reaches the clipping stage.

From ARB_transform_feedback3:

"When a generated primitive query for a vertex stream is active, the
 primitives-generated count is incremented every time a primitive emitted to
 that stream reaches the Discarding Rasterization stage (see Section 3.x)
 right before rasterization. This counter is incremented whether or not
 transform feedback is active."

Unfortunately, we don't have any registers that provide the number of primitives
written to a specific stream other than the ones that track the number of
primitives written to transform feedback in the SOL stage, so we can't
implement this exactly as specified.

In the past we implemented this feature by activating the SOL unit even if
transform feeback was disabled, but making it so that all buffers were
disabled and it only recorded statistics, which gave us the right semantics
(see 3178d2474a). Unfortunately, this came with
a significant performance impact and had to be reverted.

This new take does not intend to implement the exact semantics required by
the spec, but improves what we have now, since now we return the primitive
count for stream 0 in all cases. With this patch we use
GEN7_SO_PRIM_STORAGE_NEEDED to resolve GL_PRIMITIVES_GENERATED queries
for non-zero streams. This would return the number of primitives written
to transform feedback for each stream instead. Since non-zero streams are
only useful in combination with transform feedback this should not be too
bad, and the only case that I think we would not be supporting would be
the one in which we want to use both GL_PRIMITIVES_GENERATED and
GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN on the same non-zero stream to
detect buffer overflow.

This patch also fixes the following piglit test:
arb_gpu_shader5-xfb-streams-without-invocations

This test uses both GL_PRIMITIVES_GENERATED and
GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN queries on non-zero streams, but it
does never hit the overflow case, so both queries are always expected to return
the same value.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit f976b4c1bf)
Nominated-by: Kenneth Graunke <kenneth@whitecape.org>
2014-09-16 22:01:53 +01:00
Kenneth Graunke
0f4dc09807 glsl: Speed up constant folding for swizzles.
ir_rvalue::constant_expression_value() recursively walks down an IR
tree, attempting to reduce it to a single constant value.  This is
useful when you want to know whether a variable has a constant
expression value at all, and if so, what it is.

The constant folding optimization pass attempts to replace rvalues with
their constant expression value from the bottom up.  That way, we can
optimize subexpressions, and ideally stop as soon as we find a
non-constant subexpression.

In order to obtain the actual value of an expression, the optimization
pass calls constant_expression_value().  But it should only do so if it
knows the value can be combined into a constant.  Otherwise, at each
step of walking back up the tree, it will walk down the tree again, only
to discover what it already knew: it isn't constant.

We properly avoided this call for ir_expression nodes, but not for
ir_swizzle nodes.  This patch fixes that, drastically reducing compile
times on certain shaders where tree grafting has given us huge
expression trees.  It also fixes SuperTuxKart.

Thanks to Iago and Mike for help in tracking this down.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78468
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 84a40ce86b)
2014-09-12 16:51:52 -07:00
Kenneth Graunke
eeba3c94b1 i965/vec4: Make type_size() return 0 for samplers.
The FS backend has always used 0, and the VS backend has always used 1.
I think 1 is just working around other problems, and is incorrect.
Samplers are baked in; nothing uses the UNIFORM register we would
create, and we shouldn't upload any constant values for them.

Fixes ES3-CTS.shaders.struct.uniform.sampler_array_vertex.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 7865026c04)
2014-09-12 16:51:52 -07:00
Kenneth Graunke
0eeec2871d i965: Skip allocating UNIFORM file storage for uniforms of size 0.
Samplers take up zero slots and therefore don't exist in the params
array, nor are they included in stage_prog_data->nr_params.  There's no
need to store their size in param_size, as it's only used for dealing
with arrays of "real" uniforms (ones uploaded as shader constants).

We run into all kinds of problems trying to refer to the uniform storage
for variables that don't have uniform storage.  For one, we may use some
other variable's index, or access out of bounds in arrays.  In the FS
backend, our extra 2 * MaxSamplerImageUnits params for texture rectangle
rescaling paper over a lot of problems.  In the VS backend, we claim
samplers take up a slot, which also papers over problems.

Instead, just skip allocating storage for variables that don't have any.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 2408f166db)
2014-09-12 16:51:52 -07:00
Kenneth Graunke
8f1ccf3577 i965: Disable guardband clipping in the smaller-than-viewport case.
Apparently guardband clipping doesn't work like we thought: objects
entirely outside fthe guardband are trivially rejected, regardless of
their relation to the viewport.  Normally, the guardband is larger than
the viewport, so this is not a problem.  However, when the viewport is
larger than the guardband, this means that we would discard primitives
which were wholly outside of the guardband, but still visible.

We always program the guardband to 8K x 8K to enforce the restriction
that the screenspace bounding box of a single triangle must be no more
than 8K x 8K.  So, if the viewport is larger than that, we need to
disable guardband clipping.

Fixes ES3 conformance tests:
- framebuffer_blit_functionality_negative_height_blit
- framebuffer_blit_functionality_negative_width_blit
- framebuffer_blit_functionality_negative_dimensions_blit
- framebuffer_blit_functionality_magnifying_blit
- framebuffer_blit_functionality_multisampled_to_singlesampled_blit

v2: Mention the acronym expansion for TA/TR/MC in the comments.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
(cherry picked from commit 0bac2551e4)
2014-09-12 16:51:52 -07:00
Kenneth Graunke
8e05b2bfae i965: Separate gl_InstanceID and gl_VertexID uploading.
We always uploaded them together, mostly out of laziness - both required
an additional vertex element.  However, gl_VertexID now also requires an
additional vertex buffer for storing gl_BaseVertex; for non-indirect
draws this also means uploading (a small amount of) data.  This is extra
overhead we don't need if the shader only uses gl_InstanceID.

In particular, our clear shaders currently use gl_InstanceID for doing
layered clears, but don't need gl_VertexID.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 6b6145204d)
2014-09-12 16:51:51 -07:00
Kenneth Graunke
997f634c33 i965: Fix reference counting in new basevertex upload code.
In the non-indirect draw case, we call intel_upload_data to upload
gl_BaseVertex.  It makes brw->draw.draw_params_bo point to the upload
buffer, and increments the upload BO reference count.

So, we need to unreference it when making brw->draw.draw_params_bo point
at something else, or else we'll retain a reference to stale upload
buffers and hold on to them forever.

This also means that the indirect case should increment the reference
count on the indirect draw buffer when making brw->draw.draw_params_bo
point at it.  That way, both paths increment the reference count, so
we can safely unreference it every time.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit e980fe6071)
2014-09-12 16:51:51 -07:00
Ian Romanick
a58ae20536 i965: Request lowering gl_VertexID
Fixes the (new) piglit tests gles-3.0-drawarrays-vertexid,
gl-3.0-multidrawarrays-vertexid, and gl-3.2-basevertex-vertexid.

Fixes gles3conform failure in:

ES3-CTS.gtf.GL3Tests.transform_feedback.transform_feedback_vertex_id

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80247
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 927f5db461)
2014-09-12 16:51:51 -07:00
Kenneth Graunke
80f93d6937 i965: Expose gl_BaseVertex via a vertex attribute.
Now that we have the data available, we need to expose it to the
shaders.  We can reuse the same vertex element that we use for
gl_VertexID, but we need to back it by an actual vertex buffer.

A hardware restriction requires that vertex attributes coming from a
buffer (STORE_SRC) must come before any other types (i.e. STORE_0).
So, we have to make gl_BaseVertex be the .x component of the vertex
attribute.  This means moving gl_VertexID to a different component.

I chose to move gl_VertexID and gl_InstanceID to the .z and .w
components, respectively, to make room for gl_BaseInstance in the .y
component (which would also come from a buffer, and therefore be
STORE_SRC).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit fbb353bc13)
2014-09-12 16:51:51 -07:00
Kenneth Graunke
860af662fa i965: Refactor Gen4-7 VERTEX_BUFFER_STATE emission into a helper.
We'll need to emit another VERTEX_BUFFER_STATE for gl_BaseVertex;
pulling this into a helper function will save us from having to deal
with cross-generation differences in that code.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 87b10c4a71)
2014-09-12 16:51:51 -07:00
Kenneth Graunke
10aee701ae i965: Make gl_BaseVertex available in a buffer object.
This will be used for GL_ARB_shader_draw_parameters, as well as fixing
gl_VertexID, which is supposed to include gl_BaseVertex's value.

For indirect draws, we simply point at the indirect buffer; for normal
draws, we upload the value via the upload buffer.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit fdbabf22e1)
2014-09-12 16:51:51 -07:00
Kenneth Graunke
afe5db3293 i965: Calculate start/base_vertex_location after preparing vertices.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit c89306983c)
2014-09-12 16:51:51 -07:00
Ian Romanick
d9df31cc6e i965: Handle SYSTEM_VALUE_VERTEX_ID_ZERO_BASE
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 9975792abd)
2014-09-12 16:51:51 -07:00
Kenneth Graunke
f009cb080e mesa: Fix glGetActiveAttribute for gl_VertexID when lowered.
The lower_vertex_id pass converts uses of the gl_VertexID system value
to the gl_BaseVertex and gl_VertexIDMESA system values.  Since
gl_VertexID is no longer accessed, it would not be considered active.

Of course, it should be, since the shader uses gl_VertexID.

v2: Move the var->name dereference past the var != NULL check.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 26e949b26e)
2014-09-12 16:51:50 -07:00