meta: Track the _mesa_meta_DrawPixels VBO just like the others

All of the other meta routines have a particular pattern for creating
and tracking the VAO and VBO.  This one function deviated from that
pattern for no apparent reason.

Almost all of the code added in this patch will be removed shortly.

v2: Drop glDeleteBuffers() of the old, now-uninitialized vbo variable.
    Fixes getteximage-formats and fbo-mipmap-copypix regression when "2"
    landed in the variable (change by anholt).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

meta: Expand the vertex structure for the GenerateMipmap and decompress paths

Final intermediate step leading to some code sharing.  Note that the new
GemerateMipmap and decompress vertex structures are the same as the new vertex
structure in BlitFramebuffer and the others.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

meta: Expand the vertex structure for the DrawPixels paths

Another step leading to some code sharing.  Note that the new DrawPixels
vertex structure is the same as the new vertex structure in BlitFramebuffer
and the others.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

meta: Expand the vertex structure for the Clear paths

Another step leading to some code sharing.  Note that the new Clear
vertex structure is the same as the new BlitFramebuffer and CopyPixels
vertex structure.

The "sizeof(float) * 7" hack is temporary.  It will magically disappear
in a just a couple more patches.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

meta: Expand the vertex structure for the CopyPixels paths

Another step leading to some code sharing.  Note that the new CopyPixels
vertex structure is the same as the new BlitFramebuffer vertex
structure.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

meta: Expand the vertex structure for the BlitFramebuffer paths

This is the first of several steps leading to some code sharing.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

nv30,nvc0: only claim a single viewport

It should be possible to make this be 16 on nvc0.

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

st/clover: use VISIBILITY_CXXFLAGS where approapriate

Use the c++ visibility flags when building cpp files.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

omx: use VISIBILITY_CFLAGS to control exported symbols

Initial step of cleaning the exported symbols from targets/omx

 - Mark omx_component_library_Setup as public

v2: Keep export-symbols-regex

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com> (v1)

osmesa: drop obsolete AM_CXXFLAGS

There is no cpp files during the build process, thus we
can safely drop the unused cxxflags.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

st/vdpau: automake: export only PUBLIC symbols

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

st/vdpau: do not export VdpPresentationQueueTargetCreateX11

The function pointer is retrieved via VdpGetProcAddress just
like all the other vdpau functions and should not be exported.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

wayland-egl: automake: add symbol test

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

st/egl: automake: avoid exporting all symbols

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

targets/egl-static: automake: don't export local symbols

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

gbm: automake: add symbol tests

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

targets/gbm: automake: do not export internal symbols

Add VISIBILITY_CFLAGS to automake build, so that
only required symbols are exported.

v2: Rebase

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

gbm: do not export _gbm_mesa_get_device

This symbol is internal and was never part of the API.
Unused by any of the gbm backends, it makes sense to
simply not export it.

Cc: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

gbm: automake: add
VISIBILITY_CFLAGS

Currently the library exports every symbol imaginable,
rather than the ones defined by the API.

Note: This may cause issues for libraries that are linking
agaist libgbm's internals.

Cc: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

st/gbm: automake: do not export gbm_gallium_drm_device_create

Symbol is internal and was never meant to be exported.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

auxiliary/pipe-loader: automake: avoid exporting all symbols

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

egl/dri2/android: free driver_name in dri2_initialize_android error path

v2:
Cleanup driver name if dri2_load_driver() fails. Spotted by Chad

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

dri/nouveau: Pass the API into _mesa_initialize_context

Currently we create a OPENGL_COMPAT context regardless of
what was requested by the program. Correct that by retaining
the program's request and passing it into _mesa_initialize_context.

Based on a similar commit for radeon/r200 by Ian Romanick.

Cc: "9.1 9.2 10.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

configure: cleanup libudev handling

Add the explicit note about the required version during configure.
Require the same version (151) of udev when building the pipe-loader.
Mention the udev version requirement in GBM Requires.private.

v2: Resolve a couple of silly typos. Spotted by Ilia
v3: Cleanup platfrom/platform typo. Spotten by Stefan

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

gbm: drop unneeded dependency of libudev

As of recently we dlopen the library, additionally the only
code that is including the libudev.h header, is the loader.

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

opencl: do not link against libudev

Previously the linking was required due to dependency of udev in the
pipe-loader. Now this is no longer the case, as we dlopen the library.

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

gallium/tests: do not link against libudev

Previously the linking was required due to dependency of udev in the
pipe-loader. Now this is no longer the case, as we dlopen the library.

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

egl-static: stop linking against libudev

No longer required since all the udev code is in the loader.

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

egl_dri2: remove LIBUDEV_CFLAGS from Makefile.am

None of the code within builds or (explicitly) requires udev.

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

configure: drop LIBUDEV_CFLAGS from X11_INCLUDES

The cflags are explicitly included in the only Makefile that
handles udev dependant code.

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

pipe-loader: drop obsolete libudev.h include

All the udev code is in the loader, so there is no
reason for us to include this header.

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

configure: error out when building radeonsi without gallium-llvm

--enable-gallium-llvm is required by radeonsi. Currently we
check only for LLVM_VERSION_INT which is 0, whenever gallium-llvm
is disabled explicitly.

./configure --with-gallium-drivers=r600,radeonsi --disable-gallium-llvm

v2: Correct typo in error message. Spotted by Tom Stellard

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

omx/radeonsi: fix target

Another minor typo.

Signed-off-by: Christian König <christian.koenig@amd.com>

omx: fix some minor configure.ac issues

Matt Turner noted the incorrect order, but I somehow forgotten to
change it before pushing upstream. The other one is a typo during rebase.

Signed-off-by: Christian König <christian.koenig@amd.com>

vl: add H264 encoding interface

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

i965: Don't call abort() on an unknown device.

If we don't recognize the PCI ID, we can't reasonably load the driver.
However, calling abort() is quite rude - it means the application that
tried to initialize us (possibly the X server) can't continue via
fallback paths.  We already have a more polite mechanism - failing to
create the context.  So, just use that.

While we're at it, improve the error message.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73024
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Lu Hua <huax.lu@intel.com>

glsl: Add locking to builtin_builder singleton

Consider a multithreaded program with two contexts A and B, and the
following scenario:

1. Context A calls initialize(), which allocates mem_ctx and starts
   building built-ins.
2. Context B calls initialize(), which sees mem_ctx != NULL and assumes
   everything is already set up.  It returns.
3. Context B calls find(), which fails to find the built-in since it
   hasn't been created yet.
4. Context A finally finishes initializing the built-ins.

This will break at step 3.  Adding a lock ensures that subsequent
callers of initialize() will wait until initialization is actually
complete.

Similarly, if any thread calls release while another thread is still
initializing, or calling find(), the mem_ctx/shader would get free'd while
from under it, leading to corruption or use-after-free crashes.

Fixes sporadic failures in Piglit's glx-multithread-shader-compile.

Bugzilla: https://bugs.freedesktop.org/69200
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "10.1 10.0" <mesa-stable@lists.freedesktop.org>

i965/fs: Simplify FS_OPCODE_SET_OMASK stride mashing a bit.

In the first case, we can simply call stride(mask, 16, 8, 2) rather than
creating a new register with a different stride, then immediately
changing it a second time.

In the second case, the stride was already what we wanted, so we can
just use mask without any changes at all.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

i965/fs: Simplify FS_OPCODE_SET_SAMPLE_ID stride mashing a bit.

stride(brw_vec1_reg(...) ...) takes some register, changes the strides,
then changes the strides again.  Let's do it once.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

docs/GL3.txt: denote r600g support for ARB_viewport_array

Signed-off-by: Dave Airlie <airlied@redhat.com>

r600g: add support for multiple viewports.

tested on rv635 and barts.

Signed-off-by: Dave Airlie <airlied@redhat.com>

st/mesa: add support for GL_ARB_viewport_array (v0.2)

this just ties the mesa code to the pre-existing gallium interface,
I'm not sure what to do with the CSO stuff yet.

0.2: fix min/max bounds

Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Dave Airlie <airlied@redhat.com>

st/mesa: add support for viewport index semantic

This adds GS output and FS input support, even though FS input
support isn't supported until GLSL 4.30 from what I can see.

Signed-off-by: Dave Airlie <airlied@redhat.com>

i965: Program 2x MSAA sample positions.

There are only two sensible placements for 2x MSAA samples - and one is
the mirror image of the other.  I chose (0.25, 0.25) and (0.75, 0.75).

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

i965: Store 4x MSAA sample positions in a scalar value, not an array.

Storing a single value in an array is rather pointless.

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

i965: Duplicate less code in GetSamplePositions driver hook.

The 4x and 8x cases contained identical code for extracting the X and
Y sample offset values and converting them from U0.4 back to float.

Without this refactoring, we'd have to duplicate it a third time in
order to support 2x MSAA.

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

nouveau/video: make sure that firmware is present when checking caps

Apparently some players are ill-prepared for us claiming that a decoder
exists only to have creating it fail, and express this poor preparation
with crashes (e.g. flash). Check that firmware is there to increase the
chances of there being a high correlation between reported capabilities
and ability to create a decoder.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: 10.0 10.1 <mesa-stable@lists.freedesktop.org>
Tested-by: Emil Velikov <emil.l.velikov@gmail.com>

mesa: Fix MESA_FORMAT_Z24_UNORM_S8_UINT vs. X8_UINT mix-up.

In commit eeed49f5f290793870c60b5b635b977a732a1eb4, Mark accidentally
renamed MESA_FORMAT_S8_Z24 to MESA_FORMAT_Z24_UNORM_X8_UINT and
MESA_FORMAT_X8_Z24 to MESA_FORMAT_Z24_UNORM_S8_UINT, reversing their
sense.  The commit message was correct, but what sed commands actually
got run didn't match that.

This patch swaps the two enum names, reversing them.  This should undo
the damage, but might break things if people have manually fixed a few
instances in the meantime...

Mark's commit also failed to mention renames:
s/MESA_FORMAT_ARGB2101010_UINT\b/MESA_FORMAT_B10G10R10A2_UINT/g
s/MESA_FORMAT_ABGR2101010\b/MESA_FORMAT_R10G10B10A2_UNORM/g
but those seem okay.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: remove duplicated init of MaxViewports

Already declared 5 lines before.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

gallium: add geometry shader output limits

v2: adjust limits for radeonsi and llvmpipe
v3: add documentation

Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

mesa: Removed unnecessary check for NULL pointer when freeing memory

Note that it is OK to pass NULL pointers to this function since this commit:

mesa: modified _mesa_align_free() to accept NULL pointer
http://cgit.freedesktop.org/mesa/mesa/commit/?id=f0cc59d68a9f5231e8e2111393a1834858820735

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

nv30: report 8 maximum inputs

nvfx_fragprog_assign_generic only allows for up to 10/8 texcoords for
nv40/nv30. This fixes compilation of the varying-packing tests.
Furthermore it appears that the last 2 inputs on nv4x don't seem to
work in those tests, so just report 8 everywhere for now.

Tested on NV42, NV44. NV4B appears to have additional problems.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: 9.1 9.2 10.0 10.1 <mesa-stable@lists.freedesktop.org>

nv50/ir/ra: some register spilling fixes

Cc: 10.1 <mesa-stable@lists.freedesktop.org>

mesa: update assertion in detach_shader() for geom shaders

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74723
Cc: "10.0" "10.1" <mesa-stable@lists.freedesktop.org>
Tested-by: Andreas Boll <andreas.boll.dev@gmail.com>

mesa: allocate gl_debug_state on demand

We don't need to allocate all the state related to GL_ARB_debug_output
until some aspect of that extension is actually needed.

The sizeof(gl_debug_state) is huge (~285KB on 64-bit systems), not even
counting the 54(!) hash tables and lists that it contains.  This change
reduces the size of gl_context alone from 431KB bytes to 145KB bytes on
64-bit systems and from 277KB bytes to 78KB bytes on 32-bit systems.

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

mesa: trivial clean-ups in errors.c

Whitespace changes, 78-column rewrapping, comment clean-ups, add
some braces, etc.

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

mesa: remove _mesa_ prefix from some static functions

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

i965: Label JIP and UIP in Broadwell shader disassembly.

This makes it obvious which number is which.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

i965: Don't disassemble UIP field for Broadwell WHILE instructions.

The WHILE instruction doesn't have UIP.  It only has JIP.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

i965: Don't print source registers for Broadwell flow control.

The bits which normally contain the source register descriptions
actually contain the JIP/UIP jump targets, which we already printed.

Interpreting JIP/UIP as source registers results in some really creepy
looking output, like IF statements with acc14.4<0,1,0>UD sources.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

i965: Fix fast depth clear values on Broadwell.

Broadwell's 3DSTATE_CLEAR_PARAMS packet expects a floating point value
regardless of format.  This means we need to stop converting it to
UNORM.

Storing the value as float would make sense, but since we already have a
uint32_t field, this patch continues shoehorning it into that.  In a
sense, this makes mt->depth_clear_value the DWord you emit in the
packet, rather than the clear value itself.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>

nvc0: handle TGSI_SEMANTIC_LAYER

Cc: 10.1 <mesa-stable@lists.freedesktop.org>

nvc0: create the SW object

It's required for being able to use software methods now.

nvc0/ir/emit: hardcode vertex output stream to 0 for now

i965: Enable ARB_texture_gather for one component on Gen6.

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

i965/vec4: Emit shader w/a for Gen6 gather

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

i965/fs: Emit shader w/a for Gen6 gather

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

i965: Add surface format overrides for Gen6 gather

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

i965: Add Gen6 gather wa to sampler key

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

glsl: Optimize triop_csel with all-true or all-false.

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

glsl: Optimize various cases of fma (aka MAD).

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

glsl: Optimize lrp(x, x, coefficient) --> x.

total instructions in shared programs: 1627754 -> 1624534 (-0.20%)
instructions in affected programs:     45748 -> 42528 (-7.04%)
GAINED:                                3
LOST:                                  0

(serious sam, humus domino demo)

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

glsl: Optimize pow(x, 1) -> x.

total instructions in shared programs: 1627826 -> 1627754 (-0.00%)
instructions in affected programs:     6640 -> 6568 (-1.08%)
GAINED:                                0
LOST:                                  0

(HoN and savage2)

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

glsl: Optimize log(exp(x)) and exp(log(x)) into x.

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

glsl: Optimize ~~x into x.

v2: Fix pasteo of an extra abs being inserted (caught by many).  Rewrite
    to drop the silly switch statement.

Reviewed-by: Matt Turner <mattst88@gmail.com> (v1)

i965: Add some informative debug when the X Server botches DRI2 GetBuffers.

We've had various bug reports over the years where miptrees are missing,
and when I screwed it up while adding DRI2 to the modesetting driver, I
figured I should put the info necessary for debug here.

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

i965: Remove redundant check in blitter-based glBlitFramebuffer().

The intel_miptree_blit() code checks the format for us now, plus it
handles xrgb vs argb for us.

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

i965: Fix Gen8+ disassembly of half float subregister numbers.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

i965: Use the new brw_load_register_mem helper for draw indirect.

This makes it work on Broadwell, too.

v2: Drop bogus double write to 3DPRIM_BASE_VERTEX register
    (caught by Chris Forbes).

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

i965: Implement a brw_load_register_mem helper function.

This saves some boilerplate and hides the OUT_RELOC/OUT_RELOC64
distinction.

Placing the function in intel_batchbuffer.c is rather arbitrary; there
wasn't really an obvious place for it.

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

i965: Fix INTEL_DEBUG=vs for fixed-function/ARB programs.

Since commit 9cee3ff562f3e4b51bfd30338fd1ba7716ac5737, INTEL_DEBUG=vs
has caused a NULL pointer dereference for fixed-function/ARB programs.

In the vec4 generators, "prog" is a gl_program, and "shader_prog" is the
gl_shader_program.  This is different than the FS visitor.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

glsl: Don't lose precision qualifiers when encountering "centroid".

Mesa fails to retain the precision qualifier when parsing:

   #version 300 es
   centroid in mediump vec2 v;

Consider how the parser's type_qualifier production is applied.
First, the precision_qualifier rule creates a new ast_type_qualifier:

    <precision: mediump>

Then the storage_qualifier rule creates a second one:

    <flags: in>

and calls merge_qualifier() to fold in any previous qualifications,
returning:

    <flags: in, precision: mediump>

Finally, the auxiliary_storage_qualifier creates one for "centroid":

    <flags: centroid>

it then does $$ = $1 and $$.flags |= $2.flags, resulting in:

    <flags: centroid, in>

Since precision isn't stored in the flags bitfield, it is lost.  We need
to instead call merge_qualifier to combine all the fields.

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reported-by: Kevin Rogovin <kevin.rogovin@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

st/mesa: avoid sw fallback for getting/decompressing textures

If st_GetTexImage() is to decompress the texture, avoid the fallback
path even if prefer_blit_based_texture_transfer = false.  For drivers
that returned PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER = 0, we
were always taking the fallback path for texture decompression rather
than rendering a quad.  The later is a lot faster.

Cc: "10.0" "10.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

gallium/tgsi: correct typo propagated from NV_vertex_program1_1

In the specification text of NV_vertex_program1_1, the upper
limit of the RCC instruction is written as 1.884467e+19 in
scientific notation, but as 0x5F800000 in binary. But the binary
version translates to 1.84467e+19 rather than 1.884467e+19 in
scientific notation.

Since the lower-limit equals 2^-64 and the binary version equals
2^+64, let's assume the value in scientific notation is a typo
and implement this using the value from the binary version
instead.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/tgsi: use CLAMP instead of open-coded clamps

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

egl: Unhide functionality in _eglInitSurface()

_eglInitResource() was used to memset entire _EGLSurface by
writing more than size of pointed target. This does work
as long as Resource is the first element in _EGLSurface,
this patch fixes such dependency.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

egl: Unhide functionality in _eglInitContext()

_eglInitResource() was used to memset entire _EGLContext by
writing more than size of pointed target. This does work
as long as Resource is the first element in _EGLContext,
this patch fixes such dependency.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

glx: Add missing null check in __glX_send_client_info()

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

i965: Add missing null check in fs_visitor::dead_code_eliminate_local()

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

glx: Add some missing null checks in glx_pbuffer.c

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

glsl: Fix null access on file read error

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

glx: Add missing null check in __glXCloseDisplay

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

glx: Add missing null checks in glxcmds.c

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

main/get: support ARB_gpu_shader5

If a driver enables ARB_gpu_shader5 and sets Const.MaxVertexSteams >= 4,
then piglit's arb_gpu_shader5-minmax test should now pass.

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

glapi: add definitions for ARB_gpu_shader5

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

nouveau/codegen: allow tex offsets on non-TXF instructions (e.g. TXL)

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Christoph Bumiller <e0425955@student.tuwien.ac.at>

nv50: only over-allocate by a page for code

The pre-fetching doesn't go too far. Tested with over-allocating by only
a page, and didn't see any errors in dmesg. Saves ~512KB of VRAM.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: 10.1 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Christoph Bumiller <e0425955@student.tuwien.ac.at>

nv50: fix layerid to be the fp input number rather than vp output number

In the tests they were the same so it didn't matter, but indications are
that this is the correct behaviour. Also take this opportunity to
(trivially) support using gl_Layer in fp.

Cc: 10.1 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Christoph Bumiller <e0425955@student.tuwien.ac.at>

nv50: rework primid logic

Functionally identical but much simpler. Should also better integrate
with future layer/viewport changes/fixes.

Cc: 10.1 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Christoph Bumiller <e0425955@student.tuwien.ac.at>

glx: Pass NULL DRI drawables into the DRI driver for None GLX drawables

GLX_ARB_create_context allows making a GLX context current with None
drawable and readables, but this was never implemented correctly in GLX.
We would create a __DRIdrawable for the None GLX drawable and pass that
to the DRI driver and that would somehow work.  Now it's somehow broken.

The way this should have worked is that we pass a NULL DRI drawable
to the DRI driver when the GLX user calls glXMakeContextCurrent()
with None for drawable and readables.

https://bugs.freedesktop.org/show_bug.cgi?id=74143
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>