mesa.git
9 years agoi965/fs: Don't pass through the coordinate type
Connor Abbott [Fri, 15 Aug 2014 17:17:26 +0000 (10:17 -0700)]
i965/fs: Don't pass through the coordinate type

All we really need is the number of components.

9 years agoi965/fs: make emit_fragcoord_interpolation() not take an ir_variable
Connor Abbott [Tue, 5 Aug 2014 18:02:02 +0000 (11:02 -0700)]
i965/fs: make emit_fragcoord_interpolation() not take an ir_variable

9 years agonir: add an SSA-based dead code elimination pass
Connor Abbott [Thu, 24 Jul 2014 22:51:58 +0000 (15:51 -0700)]
nir: add an SSA-based dead code elimination pass

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
   whitespace fixes

9 years agonir: add an SSA-based copy propagation pass
Connor Abbott [Wed, 23 Jul 2014 18:19:50 +0000 (11:19 -0700)]
nir: add an SSA-based copy propagation pass

9 years agonir: add a pass to convert to SSA
Connor Abbott [Tue, 22 Jul 2014 21:05:06 +0000 (14:05 -0700)]
nir: add a pass to convert to SSA

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
   whitespace fixes

9 years agonir: calculate dominance information
Connor Abbott [Fri, 18 Jul 2014 23:13:11 +0000 (16:13 -0700)]
nir: calculate dominance information

9 years agonir: add an optimization to turn global registers into local registers
Connor Abbott [Wed, 30 Jul 2014 19:08:13 +0000 (12:08 -0700)]
nir: add an optimization to turn global registers into local registers

After linking and inlining, this allows us to convert these registers
into SSA values and optimise more code.

9 years agonir: add a pass to lower atomics
Connor Abbott [Wed, 30 Jul 2014 21:43:26 +0000 (14:43 -0700)]
nir: add a pass to lower atomics

v2: Jason Ekstrand <jason.ekstrand@intel.com>
   whitespace fixes

9 years agonir: add a pass to lower system value reads
Connor Abbott [Wed, 30 Jul 2014 19:07:45 +0000 (12:07 -0700)]
nir: add a pass to lower system value reads

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
   whitespace fixes

9 years agonir: add a pass to lower sampler instructions
Connor Abbott [Wed, 30 Jul 2014 19:04:49 +0000 (12:04 -0700)]
nir: add a pass to lower sampler instructions

9 years agonir: add a pass to remove unused variables
Connor Abbott [Wed, 30 Jul 2014 18:56:52 +0000 (11:56 -0700)]
nir: add a pass to remove unused variables

After we lower variables, we want to delete them in order to free up
some memory.

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
    whitespace fixes

9 years agonir: keep track of the number of input, output, and uniform slots
Connor Abbott [Tue, 5 Aug 2014 17:54:27 +0000 (10:54 -0700)]
nir: keep track of the number of input, output, and uniform slots

9 years agonir: add a pass to lower variables for scalar backends
Connor Abbott [Thu, 17 Jul 2014 16:12:52 +0000 (09:12 -0700)]
nir: add a pass to lower variables for scalar backends

9 years agonir: add a glsl-to-nir pass
Connor Abbott [Fri, 11 Jul 2014 01:18:17 +0000 (18:18 -0700)]
nir: add a glsl-to-nir pass

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
   Make glsl_to_nir build again
   fix whitespace

9 years agonir: add a validation pass
Connor Abbott [Wed, 30 Jul 2014 22:20:53 +0000 (15:20 -0700)]
nir: add a validation pass

This is similar to ir_validate.cpp.

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
   whitespace fixes

9 years agonir: add a printer
Connor Abbott [Wed, 30 Jul 2014 22:29:27 +0000 (15:29 -0700)]
nir: add a printer

This is similar to ir_print_visitor.cpp.

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
   whitespace fixes

9 years agoSQUASH: Fix comments from eric
Jason Ekstrand [Thu, 18 Dec 2014 01:30:27 +0000 (17:30 -0800)]
SQUASH: Fix comments from eric

Reviewed-by: Eric Anholt <eric@anholt.net>
9 years agoSQUASH: Add an assert
Jason Ekstrand [Wed, 29 Oct 2014 21:15:13 +0000 (14:15 -0700)]
SQUASH: Add an assert

9 years agonir: add core helper functions
Connor Abbott [Thu, 31 Jul 2014 23:16:23 +0000 (16:16 -0700)]
nir: add core helper functions

These include functions for adding and removing various bits of IR and
helpers for iterating over all the sources and destinations of an
instruction. This is similar to ir.cpp.

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
   whitespace and automake fixes

9 years agoSQUASH: Use the enum for the variable mode
Jason Ekstrand [Wed, 26 Nov 2014 23:08:19 +0000 (15:08 -0800)]
SQUASH: Use the enum for the variable mode

9 years agonir: add the core datastructures
Connor Abbott [Thu, 31 Jul 2014 23:14:51 +0000 (16:14 -0700)]
nir: add the core datastructures

This includes all the instructions, ifs, loops, functions, etc. This is
similar to the information in ir.h.

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
   Include ralloc and hash_table from the util directory
   whitespace fixes

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-By glenn.kennard <glenn.kennard@gmail.com>

9 years agonir: add a simple C wrapper around glsl_types.h
Connor Abbott [Wed, 30 Jul 2014 22:33:32 +0000 (15:33 -0700)]
nir: add a simple C wrapper around glsl_types.h

v2: Jason Ekstrand <jason.ekstrand@intel.com>:
    whitespace and automake fixes

Reviewed-by: Eric Anholt <eric@anholt.net>
9 years agonir: add initial README
Connor Abbott [Wed, 30 Jul 2014 22:32:21 +0000 (15:32 -0700)]
nir: add initial README

Reviewed-by: Eric Anholt <eric@anholt.net>
9 years agoexec_list: add a list_foreach_typed_reverse() macro
Connor Abbott [Tue, 22 Jul 2014 00:11:53 +0000 (17:11 -0700)]
exec_list: add a list_foreach_typed_reverse() macro

Reviewed-by: Eric Anholt <eric@anholt.net>
9 years agovc4: Add some dumping for STORE_TILE_BUFFER_GENERAL.
Eric Anholt [Tue, 13 Jan 2015 22:23:43 +0000 (11:23 +1300)]
vc4: Add some dumping for STORE_TILE_BUFFER_GENERAL.

9 years agovc4: Add dumping for the TILE_RENDERING_MODE_CONFIG packet.
Eric Anholt [Tue, 13 Jan 2015 21:53:20 +0000 (10:53 +1300)]
vc4: Add dumping for the TILE_RENDERING_MODE_CONFIG packet.

I wanted to read it, so I wrote parsing.

9 years agovc4: Fix CL dumping trying to dump too far.
Eric Anholt [Tue, 13 Jan 2015 21:06:02 +0000 (10:06 +1300)]
vc4: Fix CL dumping trying to dump too far.

Execution will end at the cl->next, because that's what ct0ea/ct1ea get
programmed to.

9 years agovc4: Fix texture type masking.
Eric Anholt [Tue, 13 Jan 2015 03:43:16 +0000 (16:43 +1300)]
vc4: Fix texture type masking.

Everything from ETC1 to RGBA64 was getting its top bit dropped, but we
didn't use any of those formats.

9 years agovc4: Colormask should apply after all other fragment ops (like logic op).
Eric Anholt [Mon, 12 Jan 2015 01:53:48 +0000 (14:53 +1300)]
vc4: Colormask should apply after all other fragment ops (like logic op).

Theoretically it should apply after dithering as well, but ditehring for
565 happens in fixed function in the TLB store.

9 years agovc4: No turning unpack arguments into small immediates.
Eric Anholt [Sun, 11 Jan 2015 20:14:41 +0000 (09:14 +1300)]
vc4: No turning unpack arguments into small immediates.

Since unpack only happens on things read from the A register file, we have
to leave them as something that can be allocated to A (temp or uniform).

9 years agovc4: Move the tests for src needing to be an A register to vc4_qir.c.
Eric Anholt [Sun, 11 Jan 2015 20:10:35 +0000 (09:10 +1300)]
vc4: Move the tests for src needing to be an A register to vc4_qir.c.

I want it from another location.

9 years agovc4: Don't swap the raddr on instructions doing unpacks.
Eric Anholt [Sun, 11 Jan 2015 20:16:26 +0000 (09:16 +1300)]
vc4: Don't swap the raddr on instructions doing unpacks.

It would mean different unpacking behavior, since only the A file does
unpack (with PM==0).

9 years agovc4: Don't let pairing happen with badly mismatched unpack flags.
Eric Anholt [Sun, 11 Jan 2015 06:31:59 +0000 (19:31 +1300)]
vc4: Don't let pairing happen with badly mismatched unpack flags.

No difference on shader-db, but prevents definite regressions in the
blending changes.

9 years agovc4: Don't let pairing happen with badly mismatched pack flags.
Eric Anholt [Sun, 11 Jan 2015 05:27:07 +0000 (18:27 +1300)]
vc4: Don't let pairing happen with badly mismatched pack flags.

No difference on shader-db, but will become more important as I introduce
more use of pack flags with the blending changes.

9 years agovc4: Fix early Z behavior on hardware.
Eric Anholt [Wed, 14 Jan 2015 04:11:59 +0000 (17:11 +1300)]
vc4: Fix early Z behavior on hardware.

It turns out the simulator was not treating this bit the same as the RPi,
and I'd forgotten to remove it when turning on early Z.  The result was
that you'd get big chunks of your rendering missing.

9 years agoRevert "radeonsi: only set BC_OPTIMIZE_DISABLE when necessary"
Michel Dänzer [Tue, 13 Jan 2015 07:38:52 +0000 (16:38 +0900)]
Revert "radeonsi: only set BC_OPTIMIZE_DISABLE when necessary"

This reverts commit 0543630d0b0d9d9f6eefbc14fbd3385d4de37ba0.

It caused flickering artifacts in Steam games such as Team Fortress 2 or
Left 4 Dead 2.

We could probably only enable this optimization by also making sure the
shader code only uses either SI_PARAM_LINEAR_CENTROID or
SI_PARAM_LINEAR_CENTER, not both. This would probably require a shader
variant.

Sorry I didn't remember this when reviewing the reverted change.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
9 years agost/clover: Adapt to TargetLibraryInfo.h move in LLVM SVN r226078
Michel Dänzer [Thu, 15 Jan 2015 03:57:05 +0000 (12:57 +0900)]
st/clover: Adapt to TargetLibraryInfo.h move in LLVM SVN r226078

Trivial.

9 years agomesa: Micro-optimize _mesa_is_valid_prim_mode
Ian Romanick [Fri, 7 Nov 2014 06:51:45 +0000 (22:51 -0800)]
mesa: Micro-optimize _mesa_is_valid_prim_mode

You would not believe the mess GCC 4.8.3 generated for the old
switch-statement.

On Bay Trail-D using Fedora 20 compile flags (-m64 -O2 -mtune=generic
for 64-bit and -m32 -march=i686 -mtune=atom for 32-bit), affects
Gl32Batch7:

32-bit: Difference at 95.0% confidence -0.37374% +/- 0.184057% (n=40)
64-bit: Difference at 95.0% confidence 0.966722% +/- 0.338442% (n=40)

The regression on 32-bit is odd.  Callgrind says the caller,
_mesa_is_valid_prim_mode is faster.  Before it says 2,293,760
cycles, and after it says 917,504.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
9 years agomesa: Check for vertex program the same way in desktop GL and ES
Ian Romanick [Tue, 11 Nov 2014 10:29:34 +0000 (10:29 +0000)]
mesa: Check for vertex program the same way in desktop GL and ES

On Bay Trail-D using Fedora 20 compile flags (-m64 -O2 -mtune=generic
for 64-bit and -m32 -march=i686 -mtune=atom for 32-bit), affects
Gl32Multithread:

32-bit: Difference at 95.0% confidence 0.416027% +/- 0.163529% (n=40)
64-bit: Difference at 95.0% confidence 0.494771% +/- 0.259985% (n=40)

Gl32Batch7 had no difference proven at 95.0% confidence (n=120) on
32-bit or 64-bit.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
9 years agomesa: Drop index buffer bounds check
Ian Romanick [Tue, 11 Nov 2014 09:21:40 +0000 (09:21 +0000)]
mesa: Drop index buffer bounds check

The previous check was insufficient (as it did not take 'indices' into
consideration), and DX10 hardware does not need this check anyway.

Since index_bytes is no longer used, remove it.

On Bay Trail-D using Fedora 20 compile flags (-m64 -O2 -mtune=generic
for 64-bit and -m32 -march=i686 -mtune=atom for 32-bit), affects
Gl32Batch7:

32-bit: Difference at 95.0% confidence 1.66929% +/- 0.230107% (n=40)
64-bit: Difference at 95.0% confidence -1.40848% +/- 0.288038% (n=40)

The regression on 64-bit is odd.  Callgrind says the caller,
validate_DrawElements_common is faster.  Before it says 10,321,920
cycles, and after it says 8,945,664.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
9 years agomesa: Only check for a current vertex shader in core profile
Ian Romanick [Tue, 11 Nov 2014 11:28:28 +0000 (11:28 +0000)]
mesa: Only check for a current vertex shader in core profile

This doesn't affect performance, but it feels more correct.

On Bay Trail-D using Fedora 20 compile flags (-m64 -O2 -mtune=generic
for 64-bit and -m32 -march=i686 -mtune=atom for 32-bit), affects
Gl32Batch7:

32-bit: No difference proven at 95.0% confidence (n=120)
64-bit: No difference proven at 95.0% confidence (n=120)

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
9 years agomesa: Only validate shaders that can exist in the context
Ian Romanick [Tue, 11 Nov 2014 12:31:22 +0000 (12:31 +0000)]
mesa: Only validate shaders that can exist in the context

On Bay Trail-D using Fedora 20 compile flags (-m64 -O2 -mtune=generic
for 64-bit and -m32 -march=i686 -mtune=atom for 32-bit), affects
Gl32Batch7:

32-bit: Difference at 95.0% confidence 0.495267% +/- 0.202063% (n=40)
64-bit: Difference at 95.0% confidence 3.57576% +/- 0.288175% (n=40)

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
9 years agoi965: Store the atoms directly in the context
Ian Romanick [Tue, 11 Nov 2014 14:51:29 +0000 (14:51 +0000)]
i965: Store the atoms directly in the context

Instead of having an extra pointer indirection in one of the hottest
loops in the driver.

On Bay Trail-D using Fedora 20 compile flags (-m64 -O2 -mtune=generic
for 64-bit and -m32 -march=i686 -mtune=atom for 32-bit), affects
Gl32Batch7:

32-bit: Difference at 95.0% confidence 1.98515% +/- 0.20814% (n=40)
64-bit: Difference at 95.0% confidence 1.5163% +/- 0.811016% (n=60)

v2 (Ken): Cut size of array from 64 to 57 to save memory.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
9 years agoi965: Micro-optimize brw_get_index_type
Ian Romanick [Mon, 10 Nov 2014 14:06:47 +0000 (06:06 -0800)]
i965: Micro-optimize brw_get_index_type

With the switch-statement, GCC 4.8.3 produces a small pile of code with
a branch.

00000000 <brw_get_index_type>:
  000000:       8b 54 24 04             mov    0x4(%esp),%edx
  000004:       b8 01 00 00 00          mov    $0x1,%eax
  000009:       81 fa 03 14 00 00       cmp    $0x1403,%edx
  00000f:       74 0d                   je     00001e <brw_get_index_type+0x1e>
  000011:       31 c0                   xor    %eax,%eax
  000013:       81 fa 05 14 00 00       cmp    $0x1405,%edx
  000019:       0f 94 c0                sete   %al
  00001c:       01 c0                   add    %eax,%eax
  00001e:       c3                      ret

However, this could be two instructions.

00000000 <brw_get_index_type>:
  000000:       2d 01 14 00 00          sub    $0x1401,%eax
  000005:       d1 e8                   shr    %eax
  000007:       90                      nop
  000008:       90                      nop
  000009:       90                      nop
  00000a:       90                      nop
  00000b:       c3                      ret

The function was also moved to the header so that it could be inlined at
the two call sites.  Without this, 32-bit also needs to pull the
parameter from the stack.  This means there is a push, a call, a move,
and a ret added to a two instruction function.  The above code shows the
function with __attribute__((regparm=1)), but even this adds several
extra instructions.  There is also an extra instruction on 64-bit to
move the parameter to %eax for the subtract.

On Bay Trail-D using Fedora 20 compile flags (-m64 -O2 -mtune=generic
for 64-bit and -m32 -march=i686 -mtune=atom for 32-bit), affects
Gl32Batch7:

32-bit: Difference at 95.0% confidence 0.818589% +/- 0.234661% (n=40)
64-bit: Difference at 95.0% confidence 0.54554% +/- 0.354092% (n=40)

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
9 years agometa: Put _mesa_meta_in_progress in the header file
Ian Romanick [Tue, 11 Nov 2014 14:14:14 +0000 (14:14 +0000)]
meta: Put _mesa_meta_in_progress in the header file

...so that it can be inlined in the two places that call it.

On Bay Trail-D using Fedora 20 compile flags (-m64 -O2 -mtune=generic
for 64-bit and -m32 -march=i686 -mtune=atom for 32-bit), affects
Gl32Batch7:

32-bit: No difference proven at 95.0% confidence (n=120)
64-bit: Difference at 95.0% confidence 1.24042% +/- 0.382277% (n=40)

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
9 years agoi965: Fix "vertex" vs. "geometry" and "VS" vs. "GS" in debug output.
Kenneth Graunke [Tue, 13 Jan 2015 22:56:54 +0000 (14:56 -0800)]
i965: Fix "vertex" vs. "geometry" and "VS" vs. "GS" in debug output.

We were happily printing "Native code for unnamed vertex shader" and
"VS vec4" program for geometry shaders in our INTEL_DEBUG=gs output,
as well as the KHR_debug output used by shader-db.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
9 years agoi965: Pass a shader stage abbreviation to fs_generator().
Kenneth Graunke [Tue, 13 Jan 2015 22:28:13 +0000 (14:28 -0800)]
i965: Pass a shader stage abbreviation to fs_generator().

A lot of messages hardcoded the string "FS", which is confusing on
Broadwell, where we use this code for VS support as well.

shader-db particularly got confused, as it reported two "FS SIMD8"
shaders, and no vertex shaders at all.  Craziness ensued.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
9 years agoconfigure: add check for GNU indent
Samuel Iglesias Gonsalvez [Tue, 13 Jan 2015 10:02:27 +0000 (11:02 +0100)]
configure: add check for GNU indent

Only GNU indent is supported when indenting autogenerated format_pack.c
and format_unpack.c files. Some non-GNU indent (Mac OS X and FreeBSD)
add extra whitespaces than break the build of those files.

Fallback to 'cat' if a non-GNU indent is found.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=88335
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Tested-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
9 years agoconfigure: change required Python Mako version to 0.3.4
Samuel Iglesias Gonsalvez [Wed, 14 Jan 2015 06:52:13 +0000 (07:52 +0100)]
configure: change required Python Mako version to 0.3.4

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
9 years agomesa: rename RGBA8888_* format constants to something appropriate.
Iago Toral Quiroga [Tue, 13 Jan 2015 07:33:19 +0000 (08:33 +0100)]
mesa: rename RGBA8888_* format constants to something appropriate.

The 8888 suggests 8-bit components which is not correct, so
replace that with the actual size of the components in each
format.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agoi965/miptree_map_blit: Don't do the initial copy if INVALIDATE_RANGE is set
Jason Ekstrand [Tue, 13 Jan 2015 01:10:22 +0000 (17:10 -0800)]
i965/miptree_map_blit: Don't do the initial copy if INVALIDATE_RANGE is set

Before we were always coping from the buffer being mapped into the
temporary buffer.  However, if INVALIDATE_RANGE is set, then we know that
the data is going to be junk after we unmap so there's no point in doing
the blit.  This is important because doing the blit will cause a stall 3
lines later when we map the buffer.

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
9 years agomesa/glsl/glapi: enable GL_EXT_draw_buffers extension
Tapani Pälli [Tue, 25 Nov 2014 11:10:30 +0000 (06:10 -0500)]
mesa/glsl/glapi: enable GL_EXT_draw_buffers extension

Patch enables ES2 extension that utilizes existing ES3 functionality.

Changes make all the subtests to run and pass in WebGL conformance
test 'webgl-draw-buffers' when running Chrome on OpenGL ES, also
Piglit test 'draw_buffers_gles2' passes.

v2: remove unused boolean (Ilia Mirkin)
v3: proper error checking for invalid values (Chad Versace)
v4: run error check explicitly for ES2 and ES3 (Kenneth Graunke)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>
9 years agoi965/fs: Allow constant propagation between different types
Jason Ekstrand [Thu, 16 Oct 2014 18:45:44 +0000 (11:45 -0700)]
i965/fs: Allow constant propagation between different types

This will be needed for NIR because it is typeless and treats all constants
as uint32 values and reinterprets them when they are used later.  This
commit allows those values to be properly propagated.

Also, this helps some synmark shaders because it allows us to copy
propagate a 0x00000000UD into a 0.0F in a load_payload, which then lets us
combine 4 load_payloads.

instructions in affected programs:     2288 -> 2144 (-6.29%)

Reviewed-by: Matt Turner <mattst88@gmail.com>
9 years agoegl/wayland: Fix unused variable warnings
Chad Versace [Tue, 13 Jan 2015 19:30:55 +0000 (11:30 -0800)]
egl/wayland: Fix unused variable warnings

Remove ctx variables unused as of 70e8ccc459.

9 years agomesa: Enable GL_RGB/GL_RGBA in GLES3 glGetInternalformativ
Mike Mason [Mon, 12 Jan 2015 22:37:28 +0000 (14:37 -0800)]
mesa: Enable GL_RGB/GL_RGBA in GLES3 glGetInternalformativ

Removes commit 7894278 changes and moves fix to _mesa_GetInternalformativ().
The original commit enabled the GL_RGB and GL_RGBA unsized internal formats
as valid for render buffers in GLES3, but this is incorrect. They should
have only been enabled for GetInternalformativ()

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88079
Reviewed-by: Chad Versace <chad.versace@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
9 years agofreedreno/ir3: handle "holes" in inputs
Rob Clark [Tue, 13 Jan 2015 04:32:25 +0000 (23:32 -0500)]
freedreno/ir3: handle "holes" in inputs

If, for example, only the x/y/w components of in.xyzw are actually used,
we still need to have a group of four registers and assign all four
components.  The hardware can't write in.xy and in.w to discontiguous
registers.  To handle this, pad with a dummy NOP instruction, to keep
the neighbor chain contiguous.

This fixes a problem noticed with firefox OMTC.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
9 years agomesa: Fix error reporting for some cases of incomplete FBO attachments
Iago Toral Quiroga [Mon, 15 Dec 2014 08:29:55 +0000 (09:29 +0100)]
mesa: Fix error reporting for some cases of incomplete FBO attachments

According to the OpenGL and OpenGL ES specs (sections
"FRAMEBUFFER COMPLETENESS" and "Whole Framebuffer Completeness"),
the image for color, depth or stencil attachments must be renderable,
otherwise the attachment is considered incomplete and we should report
GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT. Currently, we detect this
situation properly but report a different error.

This fixes the following 3 piglit tests:
dEQP-GLES3.functional.fbo.completeness.renderable.texture.color0.rgb_unsigned_int_2_10_10_10_rev
dEQP-GLES3.functional.fbo.completeness.renderable.texture.color0.rgba_unsigned_int_2_10_10_10_rev
dEQP-GLES3.functional.fbo.completeness.renderable.texture.color0.rgb16f

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agomesa: Returns a GL_INVALID_VALUE error if num of texs in glDeleteTextures is negative
Eduardo Lima Mitev [Thu, 11 Dec 2014 22:34:20 +0000 (23:34 +0100)]
mesa: Returns a GL_INVALID_VALUE error if num of texs in glDeleteTextures is negative

Per GLES3 manual for glDeleteTextures
<https://www.khronos.org/opengles/sdk/docs/man3/html/glDeleteTextures.xhtml>,
GL_INVALID_VALUE is generated if n is negative.

Fixes 1 dEQP test:
* dEQP-GLES3.functional.negative_api.texture.deletetextures

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agomesa: Returns a GL_INVALID_VALUE error if num of fbos in glDeleteRenderbuffers is...
Eduardo Lima Mitev [Thu, 11 Dec 2014 22:34:18 +0000 (23:34 +0100)]
mesa: Returns a GL_INVALID_VALUE error if num of fbos in glDeleteRenderbuffers is negative

Per GLES3 manual for glDeleteRenderbuffers
<https://www.khronos.org/opengles/sdk/docs/man3/html/glDeleteRenderbuffers.xhtml>,
GL_INVALID_VALUE is generated if n is negative.

Fixes 1 dEQP test:
* dEQP-GLES3.functional.negative_api.buffer.delete_renderbuffers

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agomesa: Returns a GL_INVALID_VALUE error if num of fbos in glDeleteFramebuffers is...
Eduardo Lima Mitev [Thu, 11 Dec 2014 22:34:17 +0000 (23:34 +0100)]
mesa: Returns a GL_INVALID_VALUE error if num of fbos in glDeleteFramebuffers is negative

Per GLES3 manual for glDeleteFramebuffers
<https://www.khronos.org/opengles/sdk/docs/man3/html/glDeleteFramebuffers.xhtml>,
GL_INVALID_VALUE is generated if n is negative.

Fixes 1 dEQP test:
* dEQP-GLES3.functional.negative_api.buffer.delete_framebuffers

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agomesa: Allows querying GL_SAMPLER_BINDING on GLES3 profile
Eduardo Lima Mitev [Thu, 11 Dec 2014 22:34:16 +0000 (23:34 +0100)]
mesa: Allows querying GL_SAMPLER_BINDING on GLES3 profile

From GLES3 specification (page 123), "The currently bound sampler may be
queried by calling GetIntegerv with pname set to
SAMPLER_BINDINGGL_SAMPLER_BINDING".

Fixes 4 dEQP tests:
* dEQP-GLES3.functional.state_query.integers.sampler_binding_getboolean
* dEQP-GLES3.functional.state_query.integers.sampler_binding_getinteger
* dEQP-GLES3.functional.state_query.integers.sampler_binding_getinteger64
* dEQP-GLES3.functional.state_query.integers.sampler_binding_getfloat

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agomain: round floating-point value to nearest integer in glGetSamplerParameteriv()
Samuel Iglesias Gonsalvez [Thu, 11 Dec 2014 22:34:15 +0000 (23:34 +0100)]
main: round floating-point value to nearest integer in glGetSamplerParameteriv()

Previously, a cast was done to convert from float to int but there
were rounding errors.

The spec specificies in Data Conversion chapter that Floating-point values are
rounded to the nearest integer.

This patch fixes the following 2 dEQP tests:

dEQP-GLES3.functional.state_query.sampler.sampler_texture_min_lod_getsamplerparameteri
dEQP-GLES3.functional.state_query.sampler.sampler_texture_max_lod_getsamplerparameteri

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agomain: round floating-point value to nearest integer in glGetTexParameteriv()
Samuel Iglesias Gonsalvez [Thu, 11 Dec 2014 22:34:14 +0000 (23:34 +0100)]
main: round floating-point value to nearest integer in glGetTexParameteriv()

Previously, a cast was done to convert from float to int but there
were rounding errors.

The spec specificies in Data Conversion chapter that Floating-point values are
rounded to the nearest integer.

This patch fixes the following 8 dEQP tests:

dEQP-GLES3.functional.state_query.texture.texture_2d_texture_min_lod_gettexparameteri
dEQP-GLES3.functional.state_query.texture.texture_2d_texture_max_lod_gettexparameteri
dEQP-GLES3.functional.state_query.texture.texture_3d_texture_min_lod_gettexparameteri
dEQP-GLES3.functional.state_query.texture.texture_3d_texture_max_lod_gettexparameteri
dEQP-GLES3.functional.state_query.texture.texture_2d_array_texture_min_lod_gettexparameteri
dEQP-GLES3.functional.state_query.texture.texture_2d_array_texture_max_lod_gettexparameteri
dEQP-GLES3.functional.state_query.texture.texture_cube_map_texture_min_lod_gettexparameteri
dEQP-GLES3.functional.state_query.texture.texture_cube_map_texture_max_lod_gettexparameteri

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agomain: fix return GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL value
Samuel Iglesias Gonsalvez [Thu, 11 Dec 2014 22:34:13 +0000 (23:34 +0100)]
main: fix return GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL value

Return the proper value for two-dimensional array texture and three-dimensional
textures.

From OpenGL ES 3.0 spec, chapter 6.1.13 "Framebuffer Object Queries",
page 234:

"If pname is FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER and the texture
object named FRAMEBUFFER_ATTACHMENT_OBJECT_NAME is a layer of a
three-dimensional texture or a two-dimensional array texture, then params
will contain the number of the texture layer which contains the attached im-
age. Otherwise params will contain the value zero."

Furthermore, FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER is an alias of
FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT.

This patch fixes dEQP test:

dEQP-GLES3.functional.state_query.fbo.framebuffer_attachment_texture_layer

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agoi965: Fix bitcast operations with negate (ceil)
Iago Toral Quiroga [Wed, 17 Dec 2014 13:19:01 +0000 (14:19 +0100)]
i965: Fix bitcast operations with negate (ceil)

Commit 0ae9ca12a8 put source modifiers out of the bitcast operations
by adding a MOV operation that would handle them separately. It missed
the case of ceil though: the implementation negates both its source and
destination operands. The source operand will be used for RNDD, which
we can handle normally, but we need to fix the modifier for the
negated result.

v2:
  - RNDD can handle the source modifier so no need to put that one
    in a separate MOV.

Fixes the following 42 dEQP tests:
dEQP-GLES3.functional.shaders.builtin_functions.common.ceil.*_vertex
dEQP-GLES3.functional.shaders.builtin_functions.common.ceil.*_fragment
dEQP-GLES3.functional.shaders.builtin_functions.precision.ceil._*vertex.*
dEQP-GLES3.functional.shaders.builtin_functions.precision.ceil._*fragment.*

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Depth and stencil attachments must be the same in OpenGL ES3
Iago Toral Quiroga [Fri, 12 Dec 2014 14:14:32 +0000 (15:14 +0100)]
mesa: Depth and stencil attachments must be the same in OpenGL ES3

"9.4. FRAMEBUFFER COMPLETENESS
 ...
 Depth and stencil attachments, if present, are the same image."

Notice that this restriction is not included in the OpenGL ES2 spec.

Fixes 18 dEQP tests in:
dEQP-GLES3.functional.fbo.completeness.attachment_combinations.*

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agomesa: Initializes the stencil value masks to 0xFF instead of ~0u
Eduardo Lima Mitev [Mon, 15 Dec 2014 16:04:52 +0000 (17:04 +0100)]
mesa: Initializes the stencil value masks to 0xFF instead of ~0u

'4.1.4 Stencil Test' section of the GL-ES 3.0 specification says:

    "In the initial state, [...] the front and back stencil mask are both set
    to the value 2^s − 1, where s is greater than or equal to the number of
    bits in the deepest stencil buffer* supported by the GL implementation."

Since the maximum supported precision for stencil buffers is 8 bits, mask
values should be initialized to 2^8 - 1 = 0xFF.

Currently, these masks are initialized to max unsigned integer (~0u), because
in OpenGL 3.0 and before, the initial mask values were:

    "In the initial state, stenciling is disabled, the front and back
    stencil reference value are both zero, the front and back stencil
    comparison functions are both ALWAYS, and the front and back
    stencil mask are both all ones."

The problem is that it causes the mask values to overflow to -1 when converted
to signed integer by glGet* APIs.

Fixes 6 dEQP failing tests:
* dEQP-GLES3.functional.state_query.integers.stencil_value_mask_getfloat
* dEQP-GLES3.functional.state_query.integers.stencil_back_value_mask_getfloat
* dEQP-GLES3.functional.state_query.integers.stencil_value_mask_separate_getfloat
* dEQP-GLES3.functional.state_query.integers.stencil_value_mask_separate_both_getfloat
* dEQP-GLES3.functional.state_query.integers.stencil_back_value_mask_separate_getfloat
* dEQP-GLES3.functional.state_query.integers.stencil_back_value_mask_separate_both_getfloat

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agoi965: Sets missing vertex shader constant values for HighInt format
Eduardo Lima Mitev [Wed, 26 Nov 2014 15:44:18 +0000 (16:44 +0100)]
i965: Sets missing vertex shader constant values for HighInt format

The range's min and max, and the precision value are not set correctly for the
vertex shader constants.

Fixes 1 dEQP test: dEQP-GLES3.functional.state_query.shader.precision_vertex_highp_int

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
9 years agor600g: fix build failure when building the driver without LLVM
Marek Olšák [Mon, 12 Jan 2015 22:13:48 +0000 (23:13 +0100)]
r600g: fix build failure when building the driver without LLVM

9 years agomain: Remove comparison unsigned int >= 0.
Laura Ekstrand [Mon, 12 Jan 2015 17:52:05 +0000 (09:52 -0800)]
main: Remove comparison unsigned int >= 0.

Fixes "macro compares unsigned to 0 (NO_EFFECT)" found by Coverity Scan.

Reviewed-by: Matt Turner <mattst88@gmail.com>
9 years agomesa/main: In _mesa_CompressedTextureSubImage3D() check found texObj
Juha-Pekka Heikkila [Mon, 12 Jan 2015 13:27:24 +0000 (15:27 +0200)]
mesa/main: In _mesa_CompressedTextureSubImage3D() check found texObj

Check returned texObj is not null. If texObj is null there is already
GL_INVALID_OPERATION error set.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
9 years agomesa: Move declarations to to of block.
José Fonseca [Mon, 12 Jan 2015 12:40:01 +0000 (12:40 +0000)]
mesa: Move declarations to to of block.

To fix MSVC build.

Trivial.

9 years agomesa: restrict use of GL_ABGR_EXT format to allowed data types
Samuel Iglesias Gonsalvez [Fri, 21 Nov 2014 15:31:09 +0000 (16:31 +0100)]
mesa: restrict use of GL_ABGR_EXT format to allowed data types

GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_SHORT_1_5_5_5_REV,
GL_UNSIGNED_INT_10_10_10_2, GL_UNSIGNED_INT_2_10_10_10_REV data types
are not explicitly allowed to work with GL_ABGR_EXT format neither
in GL nor GL_EXT_abgr specs.

Removed the corresponding mesa formats as there are no other functions
using them inside Mesa anymore.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_rebase_rgba_uint and _mesa_rebase_rgba_float
Iago Toral Quiroga [Thu, 27 Nov 2014 08:29:44 +0000 (09:29 +0100)]
mesa: Remove _mesa_rebase_rgba_uint and _mesa_rebase_rgba_float

These are no longer used anywhere now that we have _mesa_format_convert.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_pack_int_rgba_row() and auxiliary functions
Samuel Iglesias Gonsalvez [Wed, 12 Nov 2014 10:24:30 +0000 (11:24 +0100)]
mesa: Remove _mesa_pack_int_rgba_row() and auxiliary functions

These are no longer used.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_(un)pack_index_span
Iago Toral Quiroga [Tue, 11 Nov 2014 07:15:57 +0000 (08:15 +0100)]
mesa: Remove _mesa_(un)pack_index_span

These are not used anywhere.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_pack_rgba_span_float and tmp_pack.h
Iago Toral Quiroga [Mon, 10 Nov 2014 16:45:55 +0000 (17:45 +0100)]
mesa: Remove _mesa_pack_rgba_span_float and tmp_pack.h

_mesa_pack_rgba_span_float was the last of the color span functions
and we have replaced all calls to it with calls to _mesa_format_convert,
so we can remove it together with tmp_pack.h which was used to
generate the pack functions for multiple types that were used from
the various color span functions that have been removed.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_unpack_color_span_float
Iago Toral Quiroga [Mon, 10 Nov 2014 11:25:57 +0000 (12:25 +0100)]
mesa: Remove _mesa_unpack_color_span_float

And various helper functions that went unused after removing it.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove (signed) integer pack and span functions.
Iago Toral Quiroga [Mon, 10 Nov 2014 08:55:18 +0000 (09:55 +0100)]
mesa: Remove (signed) integer pack and span functions.

These are no longer used now that we moved to _mesa_format_convert.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_unpack_color_span_ubyte
Iago Toral Quiroga [Mon, 10 Nov 2014 08:49:14 +0000 (09:49 +0100)]
mesa: Remove _mesa_unpack_color_span_ubyte

This is no longer used anywhere after moving to _mesa_format_convert.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_make_temp_float_image
Iago Toral Quiroga [Fri, 7 Nov 2014 11:20:11 +0000 (12:20 +0100)]
mesa: Remove _mesa_make_temp_float_image

Now that we have _mesa_format_convert we don't need this.

This was only used to create temporary RGBA float images in the process
of storing some compressed formats. These can call _mesa_texstore
with a RGBA/float dst to achieve the same goal.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_make_temp_ubyte_image
Iago Toral Quiroga [Fri, 7 Nov 2014 10:17:29 +0000 (11:17 +0100)]
mesa: Remove _mesa_make_temp_ubyte_image

Now that we have _mesa_format_convert we don't need this.

texstore_rgba will use the GL_COLOR_INDEX to RGBA conversion
helpers instead and compressed formats that used
_mesa_make_temp_ubyte_image to create an ubyte RGBA temporary
image can call _mesa_texstore with a RGBA/ubyte dst to
achieve the same goal.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Remove _mesa_unpack_color_span_uint
Iago Toral Quiroga [Thu, 6 Nov 2014 15:46:13 +0000 (16:46 +0100)]
mesa: Remove _mesa_unpack_color_span_uint

This is no longer used.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Replace _mesa_unpack_bitmap with _mesa_unpack_image()
Eduardo Lima Mitev [Tue, 21 Oct 2014 17:11:41 +0000 (19:11 +0200)]
mesa: Replace _mesa_unpack_bitmap with _mesa_unpack_image()

_mesa_unpack_bitmap() was introduced by commit 02b801c to handle the case
when data is stored in PBO by display lists, in the context of this bug:

Incorrect pixels read back if draw bitmap texture through Display list
https://bugs.freedesktop.org/show_bug.cgi?id=10370

Since _mesa_unpack_image() already handles the case of GL_BITMAP, this patch
removes _mesa_unpack_bitmap() and makes affected calls go through
_mesa_unapck_image() instead.

The sample test attached to the original bug report passes with this change
and there are no piglit regressions.

Signed-off-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Let _mesa_swizzle_and_convert take array format types instead of GL types
Iago Toral Quiroga [Thu, 27 Nov 2014 07:31:00 +0000 (08:31 +0100)]
mesa: Let _mesa_swizzle_and_convert take array format types instead of GL types

In the future we would like to have a format conversion library that is
independent of GL so we can share it with Gallium. This is a step in that
direction.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agost/mesa: Use _mesa_format_convert to implement st_GetTexImage.
Iago Toral Quiroga [Wed, 26 Nov 2014 09:20:55 +0000 (10:20 +0100)]
st/mesa: Use _mesa_format_convert to implement st_GetTexImage.

Instead of using _mesa_pack_rgba_span_float. This should allow us to remove
that function in a later patch.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agoswrast: Use _mesa_format_convert to implement draw_rgba_pixels.
Iago Toral Quiroga [Mon, 10 Nov 2014 10:25:20 +0000 (11:25 +0100)]
swrast: Use _mesa_format_convert to implement draw_rgba_pixels.

This is the only place that uses _mesa_unpack_color_span_float so after
this we should be able to remove that function.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Use _mesa_format_convert to implement get_tex_rgba_compressed.
Iago Toral Quiroga [Wed, 26 Nov 2014 09:19:54 +0000 (10:19 +0100)]
mesa: Use _mesa_format_convert to implement get_tex_rgba_compressed.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: use _mesa_format_convert to implement get_tex_rgba_uncompressed.
Iago Toral Quiroga [Mon, 27 Oct 2014 13:40:55 +0000 (14:40 +0100)]
mesa: use _mesa_format_convert to implement get_tex_rgba_uncompressed.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: use _mesa_format_convert to implement glReadPixels.
Iago Toral Quiroga [Thu, 23 Oct 2014 08:04:56 +0000 (10:04 +0200)]
mesa: use _mesa_format_convert to implement glReadPixels.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Use _mesa_format_convert to implement texstore_rgba.
Iago Toral Quiroga [Wed, 15 Oct 2014 11:42:11 +0000 (13:42 +0200)]
mesa: Use _mesa_format_convert to implement texstore_rgba.

Notice that _mesa_format_convert does not handle byte-swapping scenarios,
GL_COLOR_INDEX or MESA_FORMAT_YCBCR(_REV), so these must be handled
separately.

Also, remove all the code that goes unused after using _mesa_format_convert.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Add helpers to extract GL_COLOR_INDEX to RGBA float/ubyte
Iago Toral Quiroga [Fri, 7 Nov 2014 07:32:14 +0000 (08:32 +0100)]
mesa: Add helpers to extract GL_COLOR_INDEX to RGBA float/ubyte

We only use _mesa_make_temp_ubyte_image in texstore.c to convert
GL_COLOR_INDEX to RGBA, but this helper does more stuff than this.
All uses of this helper can be replaced with calls to
_mesa_format_convert except for this GL_COLOR_INDEX conversion.

This patch extracts the GL_COLOR_INDEX to RGBA logic to a separate
helper so we can use that instead from texstore.c.

In future patches we will replace all remaining calls to
_mesa_make_temp_ubyte_image in the repository (related to compressed
formats) with calls to _mesa_format_convert so we can remove
_mesa_make_temp_ubyte_image and related functions.

v2:
- Remove ‘for’ loop initial declaration. They are only allowed in C99 or C11
mode.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Add RGBA to Luminance conversion helpers
Iago Toral Quiroga [Wed, 29 Oct 2014 12:32:43 +0000 (13:32 +0100)]
mesa: Add RGBA to Luminance conversion helpers

For glReadPixels with a Luminance destination format we compute luminance
values from RGBA as L=R+G+B. This, however, requires ad-hoc implementation,
since pack/unpack functions or _mesa_swizzle_and_convert won't do this
(and thus, neither will _mesa_format_convert). This patch adds helpers
to do this computation so they can be used to support conversion to luminance
formats.

The current implementation of glReadPixels does this computation as part
of the span functions in pack.c (see _mesa_pack_rgba_span_float), that do
this together with other things like type conversion, etc. We do not want
to use these functions but use _mesa_format_convert instead (later patches
will remove the color span functions), so we need to extract this functionality
as helpers.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Add _mesa_swap2_copy and _mesa_swap4_copy
Iago Toral Quiroga [Thu, 30 Oct 2014 10:55:02 +0000 (11:55 +0100)]
mesa: Add _mesa_swap2_copy and _mesa_swap4_copy

We have _mesa_swap{2,4} but these do in-place byte-swapping only. The new
functions receive an extra parameter so we can swap bytes on a source
input array and store the results in a (possibly different) destination
array.

This is useful to implement byte-swapping in pixel uploads, since in this
case we need to swap bytes on the src data which is owned by the
application so we can't do an in-place byte swap.

v2:
  - Include compiler.h in image.h, which is necessary to build in MSCV as
    indicated by Brian Paul.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa/pack: use _mesa_format_from_format_and_type in _mesa_pack_rgba_span_from_*
Samuel Iglesias Gonsalvez [Wed, 15 Oct 2014 11:03:06 +0000 (13:03 +0200)]
mesa/pack: use _mesa_format_from_format_and_type in _mesa_pack_rgba_span_from_*

We had previously added the needed mesa formats, so we can simplify
the code further.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Add helper to convert a GL format and type to a mesa (array) format.
Iago Toral Quiroga [Fri, 5 Dec 2014 12:10:08 +0000 (13:10 +0100)]
mesa: Add helper to convert a GL format and type to a mesa (array) format.

v2 after review by Jason Ekstrand:
- Move _mesa_format_from_format_and_type to glformats
- Return a mesa_format for GL_UNSIGNED_INT_8_8_8_8(_REV)

v3:
- Adapted to the new implementation of mesa_array_format as a plain uint32_t
  bitfield.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Add a helper _mesa_compute_rgba2base2rgba_component_mapping
Iago Toral Quiroga [Wed, 26 Nov 2014 08:39:35 +0000 (09:39 +0100)]
mesa: Add a helper _mesa_compute_rgba2base2rgba_component_mapping

This will come in handy when callers of _mesa_format_convert need
to compute the rebase swizzle parameter to use.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Add a rebase_swizzle parameter to _mesa_format_convert
Iago Toral Quiroga [Wed, 26 Nov 2014 08:05:08 +0000 (09:05 +0100)]
mesa: Add a rebase_swizzle parameter to _mesa_format_convert

The new parameter allows callers to provide a rebase swizzle that
the function needs to use to match the requirements of the base
internal format involved. This is necessary when the source or
destination internal formats (depending on whether we are doing
the conversion for a pixel download or a pixel upload respectively)
do not match the base formats of the source or destination
formats of the conversion. This can happen when the driver does not
support the internal formats and uses a different format to store
pixel data internally.

For example, a texture upload from RGB to Luminance in a driver
that does not support textures with a Luminance format may decide
to store the Luminance data as RGBA. In this case we want to store
the RGBA values as (R,R,R,1). Following the same example, when we
download from that texture to RGBA we want to read (R,0,0,1). The
rebase_swizzle parameter allows these transforms to happen.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Expose compute_component_mapping as _mesa_compute_component_mapping
Iago Toral Quiroga [Thu, 6 Nov 2014 12:19:45 +0000 (13:19 +0100)]
mesa: Expose compute_component_mapping as _mesa_compute_component_mapping

This is necessary to handle conversions between array types where
the driver does not support the dst format requested by the client and
chooses a different format instead.

We will need this in _mesa_format_convert, so move it to format_utils.c,
prefix it with '_mesa_' and make it available to other files.

v2:
  - Move _mesa_compute_component_mapping to glformats

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
9 years agomesa: Add an implementation of a master convert function.
Jason Ekstrand [Mon, 25 Aug 2014 17:55:06 +0000 (10:55 -0700)]
mesa: Add an implementation of a master convert function.

v2 by Iago Toral <itoral@igalia.com>:

- When testing if we can directly pack we should use the src format to check
  if we are packing from an RGBA format. The original code used the dst format
  for the ubyte case by mistake.
- Fixed incorrect number of bits for dst, it was computed using the src format
  instead of the dst format.
- If the dst format is an array format, check if it is signed. We were only
  checking this for the case where it was not an array format, but we need
  to know this in both scenarios.
- Fixed incorrect swizzle transform for the cases where we convert between
  array formats.
- Compute is_signed and bits only once and for the dst format. We were
  computing these for the src format too but they were overwritten by the
  dst values immediately after.
- Be more careful when selecting the integer path. Specifically, check that
  both src and dst are integer types. Checking only one of them should suffice
  since OpenGL does not allow conversions between normalized and integer types,
  but putting extra care here makes sense and also makes the actual requirements
  for this path more clear.
- The format argument for pack functions is the destination format we are
  packing to, not the source format (which has to be RGBA).
- Expose RGBA8888_* to other files. These will come in handy when in need to
  test if a given array format is RGBA or in need to pass RGBA formats to
  mesa_format_convert.

v3 by Samuel Iglesias <siglesias@igalia.com>:

- Add an RGBA8888_INT definition.

v4 by Iago Toral <itoral@igalia.com> after review by Jason Ekstrand:

- Added documentation for _mesa_format_convert.
- Added additional explanatory comments for integer conversions.
- Ensure that we use _messa_swizzle_and_convert for all signed source formats.
- Squashed: do not directly (un)pack to RGBA UINT if the source is not unsigned.

v5 by Iago Toral <itoral@igalia.com>:

- Adapted to the new implementation of mesa_array_format as a plain uint32_t
  bitfield.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>