BLORP performs blits by drawing a rectangle with a shader that samples
from the source texture, and writes color data to the destination.
The sampler always returns 32-bit RGBA float data, regardless of the
source format's component ordering or data type. Likewise, the render
target write message takes 32-bit RGBA float data, and converts it
appropriately. So the bulk of the work is already taken care of for us.
This greatly accelerates a lot of CopyTexSubImage calls, and makes
Legends of Aethereus playable on Ivybridge. At the default settings,
LOA continually blits between SRGBA8888 (the window format) and
RGBA16_FLOAT. Since neither BLORP nor our BLT paths supported this,
it fell back to meta, spending 33% of the CPU in floorf() converting
between floats and half-floats.
v2: Use != instead of ^ (suggested by Ian). Note that only
CopyTexSubImage is affected by this patch (caught by Eric).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The previous code for sRGB overrides assumes that the source and
destination formats are equal, other than the color space. This won't
be feasible when we add support for format conversions.
Here are a few cases, and how the old code handled them:
1. RGB8 -> SRGB8, MSAA ==> SRGB8 -> SRGB8
2. RGB8 -> SRGB8, single ==> RGB8 -> RGB8
3. SRGB8 -> RGB8, MSAA ==> RGB8 -> RGB8
4. SRGB8 -> RGB8, single ==> SRGB8 -> SRGB8
Apparently, preserving the behavior of #1 is important. When doing a
multisample to single-sample resolve, blending the samples together in
an sRGB correct fashion results in a noticably higher quality image.
It also is necessary to pass Piglit's EXT_framebuffer_multisample
accuracy color tests.
Paul, Eric, Anuj, and I talked about this, and aren't sure that it
matters in the other cases.
This patch preserves the behavior of #1, but otherwise reverts to
doing everything in linear space, changing the behavior of case #4.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We could conceivably use BRW_SURFACEFORMAT_R24_UNORM_X8_TYPELESS for
Z24 source images, allowing conversions from Z24 to either Z16 or Z32F.
Unfortunately, we can't use it for destination images since it isn't
supported as a render target.
Using different formats for sources or destinations would be painful,
so for now, punt.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Currently, all that matters is that we copy the correct number of bits,
so any format that has 32-bits of data will work fine.
Once BLORP begins handling format conversions, the sampler will need to
correctly interpret the data. We don't need a depth format, but we do
need the right number of components and data type (FLOAT).
For Z32F, this means using R32_FLOAT.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Currently, all that matters is that we copy the correct number of bits,
so any format that has 16-bits of data will work fine.
Once BLORP begins handling format conversions, the sampler will need to
correctly interpret the data. We don't need a depth format, but we do
need the right number of components and data type (UNORM).
For Z16, this means using R16_UNORM.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Once blorp gains the ability to do format conversions, it's conceivable
that the source format may be texturable but not supported as a render
target. This would break Paul's code, which assumes that it can use the
render_target_format array even for the source format.
There are three ways to convert MESA_FORMAT enums to BRW_SURFACEFORMAT
enums:
1. brw_format_for_mesa_format()
This translates the Mesa format to the most equivalent BRW format.
2. brw->render_target_format[]
This is used for renderbuffers, and handles the subset of formats
that are renderable. However, it's not always equivalent, since
it overrides a few non-renderable formats. For example, it
converts B8G8R8X8_UNORM to B8G8R8A8_UNORM so it can be rendered to.
3. translate_tex_format()
This is used for textures. It wraps brw_format_for_mesa_format(),
but overrides depth textures, and one sRGB case on Gen4.
BLORP has a fourth function, which uses brw->render_target_format[]
and overrides depth formats (differently than translate_tex_format).
This patch makes the BLORP function to use brw_format_for_mesa_format()
for textures/source data, since not everything will be a render target.
It continues using brw->render_target_format[] for render targets, since
it needs the format overrides that provides.
We don't use translate_tex_format() since the additional overrides are
not useful or simply redundant.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This allows us to determine whether we're setting up a format for
the source (as a texture) or destination (as a render target).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As we're moving towards expanding the number of subpixel
bits and the width of the variables used in the computations
we need to make this code a bit more centralized.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Both the imul_hi and umul_hi are working with this patch.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
The code introduces two new 32bit integer multiplication opcodes which
can be used to produce correct 64 bit results. GLSL, OpenCL and D3D10+
require them. We use two seperate opcodes, because they match the
behavior of GLSL and OpenCL, are a lot easier to add than a single
opcode with multiple destinations and because there's not much (any)
difference wrt code-generation.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
The UD values were getting set up as floats. This happened to work out
because they were used as the second argument where the first was a dword,
and gen6+ doesn't do source conversions. But it did trigger fulsim
warnings, and it meant if you used the push constant as the first operand
you would have been disappointed.
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Fixes 3 texelFetch tests in piglit all.tests on ivb, and cubemap npot on gm45.
v2: Don't forget the gen4 DL=6 cubemap behavior.
Cc: "9.1 9.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com> (v1)
We hadn't run into order of operation warnings before, apparently, since
addition is so low on the order.
Cc: "9.1 9.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
We had a fixup for gen4's 3d-layout cubemaps (which, iirc, we'd
experimentally found to be necessary!), but while the spec still requires
it on gen5, we'd been missing it in the array-layout cubemaps.
Cc: "9.1 9.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
The EGL library has some references to x11 but it gets the link flags
from the XCB_DRI2_LIBS if and only if HAVE_EGL_PLATFORM_X11 is true.
The X11_LIBS variable was probably coming from a PKG_CHECK_MODULES (x11)
earlier in history.
If it is possible to have HAVE_EGL_DRIVER_GLX without HAVE_EGL_PLATFORM_X11
then the link flags for libX11 should be passed. However, it won't come
from X11_LIBS which is undefined.
Reported-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
The compiler cannot find the Xlib.h in the installed system headers.
All supplied include directives point to inside the mesa module.
The X11_CFLAGS variable is undefined (not defined in config.status).
It appears the intent was to use X11_INCLUDES defined in configure.ac.
The Xlib.h file is not installed on my workstation. It is supplied in
the libx11-dev package. This allows an X developer control over which
version of this file is used for X development.
Use to test: --enable-gallium-egl --enable-xlib-glx --disable-dri
Acked-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
The compiler cannot find the Xlib.h in the installed system headers.
All supplied include directives point to inside the mesa module.
The X11_CFLAGS variable is undefined (not defined in config.status).
It appears the intent was to use X11_INCLUDES defined in configure.ac.
The Xlib.h file is not installed on my workstation. It is supplied in
the libx11-dev package. This allows an X developer control over which
version of this file is used for X development.
Acked-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
The X11_CFLAGS variable is undefined (not defined in config.status).
It appears the intent was to use X11_INCLUDES defined in configure.ac.
It is used for building the code in the x11 subdir.
The build does not fail on this one as LIBDRM_CFLAGS happens to have
the inludedir value as the one for X11. It will not always be the case.
The option --enable-gallium-egl is required durimg configuration.
Acked-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
OutputSurfaces have simple YCbCr rendering functionality built in,
but so far only 4:2:0 subsampling worked correctly. This fixes 4:2:2
and 4:4:4 formats.
Reviewed-by: Christian König <christian.koenig@amd.com>
It doesn't work (decodes to garbage) with most videos on UVD 3.0. Worse
yet, it often results in random memory corruption or GPU hangs. Rumor
has it only the newest UVD hardware could do it anyway.
Reviewed-by: Christian König <christian.koenig@amd.com>
The DPB size calculations seem to be off; there is various random
corruption happening, even with advanced profile. Always assuming
a minimum number of references appears to fix it, similarly to
H.264. This might overallocate the DPB. Also clean up the SPS/PPS
field setup so that it matches VC-1 specifications better.
With these changes, all advanced profile VC-1 files I could get my
hand on work fine.
Reviewed-by: Christian König <christian.koenig@amd.com>
UVD can only support NV12 in the case of hardware decoding, but we
can still use all other formats for software decoding. Use the UNKNOWN
profile to signal that we're not interesting in hardware decoding.
v2: use profile instead of entrypoint
Reviewed-by: Christian König <christian.koenig@amd.com>
which contains -Wl,-Bsymbolic. If I understand it correctly, it prevents
symbols from clashing if multiple drivers are loaded at the same time.
Tested-by: Emil Velikov <emil.l.velikov@gmail.com>
Copy sechalf to the new register, otherwise we would read wrong HW registers.
Signed-off-by: Chia-I Wu <olv@lunarg.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
When the instruction to send the sampler message is forced uncompressed or
sechalf, send SIMD8 one even in SIMD16 mode.
Signed-off-by: Chia-I Wu <olv@lunarg.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
SIMD8 sampler messages are allowed in SIMD16 mode, and they could not work
without BRW_COMPRESSION_2NDHALF. Later PRMs (gen5 and later) do not
explicitly state whether BRW_COMPRESSION_2NDHALF is allowed, but they do have
examples using send with SecHalf. It should be safe to assume SecHalf is
valid.
Signed-off-by: Chia-I Wu <olv@lunarg.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
gl_PointSize is stored in the w component of VARYING_SLOT_PSIZ, but
the geometry shader infrastructure assumes that it should look for all
geometry shader inputs of type float in the x component. So when
compiling a geomtery shader that uses a gl_PointSize input, fix it up
during the shader prolog by moving the w component to the x component.
This is similar to how we emit fixups and workarounds for vertex
shader attributes.
Fixes piglit test spec/glsl-1.50/execution/geometry/core-inputs.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This corresponds to the lowering of gl_ClipDistance to
gl_ClipDistanceMESA for vertex and geometry shader outputs. Since
this lowering pass occurs after lower_named_interface blocks, it deals
with 2D arrays (gl_ClipDistance[vertex][clip_plane]) rather than 1D
arrays in an interface block
(gl_in[vertex].gl_ClipDistance[clip_plane]).
v2 (Paul Berry <stereotype441@gmail.com>): Fix indexing order for
gl_ClipDistance input lowering. Properly lower bulk assignment of
gl_ClipDistance inputs. Rework for GLSL 1.50 style geometry shaders.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
v3 (Paul Berry <stereotype441@gmail.com>): Add comments and assertions
to clarify that the 2D version of clip distance is only used for
geometry shader inputs.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Previously, builtin_variables.cpp was written assuming that we
supported ARB_geometry_shader4 style geometry shader inputs, meaning
that each built-in varying input to a geometry was supplied via an
array variable whose name ended in "In", e.g. gl_PositionIn or
gl_PointSizeIn.
However, in GLSL 1.50 style geometry shaders, things work
differently--built-in inputs are supplied to geometry shaders via a
built-in interface block called gl_in, which contains all the built-in
inputs using their usual names (e.g. the gl_Position input is supplied
to the geometry shader as gl_in[i].gl_Position).
This patch adds the necessary logic to builtin_variables.cpp to create
the gl_in interface block and populate it accordingly for geometry
shader inputs. The old ARB_geometry_shader4 style varyings are
removed, though they can easily be added back in the future if we
decide to support ARB_geometry_shader4.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This patch adds a "location" element to struct glsl_struct_field, so
that we can keep track of the gl_varying_slot associated with each
built-in geometry shader input.
In lower_named_interface_blocks, we use this value to populate the
"location" field in the ir_variable that stores each geometry shader
input.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
For a few reasons.
1: In the (current) common case, these conditionals are never true. All
we're doing by checking them is slowing down MakeCurrent. The server
does these checks already anyway.
2: GLX >= 3.0 contexts may legally be made current without a bound
framebuffer.
This does not fix piglit/glx-create-context-current-no-framebuffer, but
is a prerequisite for fixing it.
Cc: "9.1 9.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
The new sampler bind sends us NULL samplers, so we need to count
the number of valid samplers ourselves. This fixes ~500 piglit
regressions from the sampler rework.
While we're at it, let's also support start.
In 3DSTATE_DEPTH_BUFFER, we set Width and Height to the miptree slice's
physical dimensions. (Logical and physical dimensions may differ for
multisample surfaces).
However, in SURFACE_STATE, we always set Width and Height to the slice's
logical dimensions. We should do the same for 3DSTATE_DEPTH_BUFFER,
because the hw docs say so.
No Piglit regressions (-x glx -x glean) on Ivybridge with Wayland.
v2: No Piglit regressions, for real this time.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
Now, one can do the following to generate and read the i965 Doxygen:
cd $MESA_TOP/doxygen
make
firefox i965/index.html
Reviewed-by: Frank Henigman <fjhenigman@google.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
Kenneth Graunke
José Fonseca
Zack Rusin
Eric Anholt
Gaetan Nadon
Grigori Goronzy
Marek Olšák
Chia-I Wu
Vinson Lee
Paul Berry
Bryan Cain
Adam Jackson
Stéphane Marchesin
Chad Versace