This differs from the FS in that we track constants in each
destination channel, and we we have to look at all the swizzled source
channels. Also, the instruction stream walk is done in an O(n) manner
instead of O(n^2).
Across shader-db, this reduces 8.0% of the instructions from 60.0% of
the vertex shaders, leaving us now behind the old backend by 11.1%
overall.
Tracking virtual GRFs has tension between using a packed array per
virtual GRF (which is good for register allocation), and sparse arrays
where there's an element per actual register (so the first and second
column of a mat2 can be distinguished inside of an optimization pass).
The FS mostly avoided the need for this second sparse array by doing
virtual GRF splitting, but that meant that instances where virtual GRF
splitting didn't work, instructions using those registers got much
less optimized.
Now instead of env INTEL_NEW_VS=1 to get it, you need INTEL_OLD_VS=1
to not get it. While it's not quite to the same codegen efficiency as
the old backend, it is not regressing piglit on G965 and G45, and
actually fixing bugs on gen6, and the remaining codegen quality
regressions all appear tractable.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
We don't expect uniform accesses to generally go away from being dead
code at this point, and we will want to have uniforms packed before
spilling them out to pull constants when we are forced to do that.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
The offset to the arrays after the first was mis-scaled, so we'd go
access off the end of the surface and read 0s. Fixes
glsl-vs-uniform-array-3.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
While we had nice debug output for most of the instruction stream, it
was terminated by a series of anonymous MOVs and a send.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
It maps to MESA_FORMAT_RGBA8888_REV. Surfaces of the format can only be
sampled from but not render to.
Only i915 is tested.
Reviewed-by: Eric Anholt <eric@anholt.net>
[olv: add a check in intel_image_target_renderbuffer_storage]
Add a new format token, __DRI_IMAGE_FORMAT_ABGR8888, to __DRI_IMAGE. It
maps to MESA_FORMAT_RGBA8888_REV in core mesa or
PIPE_FORMAT_R8G8B8A8_UNORM in gallium. The format is used by
translucent surfaces on Android.
We were splitting on each side of an unlinked program, and the two
sides lost track of which variables they referenced, resulting in
assertion failure during validation. Fixes piglit
link-struct-uniform-usage.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Previously, it would produce:
Failed to compile FS: 0:6(7): error: non-lvalue in assignment
and now it produces:
Failed to compile FS: 0:5(7): error: whole array assignment is not
allowed in GLSL 1.10 or GLSL ES 1.00.
Also, add spec quotation to the two places we have code for array
lvalues in GLSL 1.10.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
We just want to mark the whole thing used, not mark from each element
the whole size in use. Fixes undefined URB entry writes on i965,
which blew up with debugging enabled.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Uses the new _mesa_decompress_image() function. Unlike the meta path
that uses textured quad rendering to do decompression, this works with
signed formats as well.
We'd still accept the GL_PALETTE[48]_* formats in glCompressedTexImage2D,
but they wouldn't be listed if you queried whether they were supported.
Signed-off-by: Adam Jackson <ajax@redhat.com>
From section 7.1 (Vertex Shader Special Variables) of the GLSL 1.30
spec:
"It is an error for a shader to statically write both
gl_ClipVertex and gl_ClipDistance."
Fixes piglit test mixing-clip-distance-and-clip-vertex-disallowed.c.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
The check now applies both when explicitly declaring the size of
gl_TexCoord and when implicitly setting the size of gl_TexCoord by
accessing it using integral constant expressions.
This is prep work for adding similar size checks to gl_ClipDistance.
Fixes piglit tests texcoord/implicit-access-max.{frag,vert}.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
From the GLSL 1.30 spec, section 7.1 (Vertex Shader Special Variables):
The gl_ClipDistance array is predeclared as unsized and must be
sized by the shader either redeclaring it with a size or indexing it
only with integral constant expressions.
Fixes piglit tests clip-distance-implicit-length.vert,
clip-distance-implicit-nonconst-access.vert, and
{vs,fs}-clip-distance-explicitly-sized.shader_test.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
-g3 causes binaries to be 3x - 10x bigger, not only on MinGW w/ dwarf
debugging info, but linux as well.
Stick with -g, (which defaults to -g2), like autoconf does.
Return true for NATIVE_PARAM_PREMULTIPLIED_ALPHA when all formats with
alpha support premultiplied alpha.
(Based on Chia-I Wu's patch)
[olv: remove the use of param_premultiplied_alpha from the original
patch]
Handle "format" events and return configs for the supported formats.
(Based on Chia-I Wu's patch)
[olv: update and explain why PIPE_FORMAT_B8G8R8A8_UNORM should not be
enabled without HAS_ARGB32]
Return true for NATIVE_PARAM_PREMULTIPLIED_ALPHA when all formats with
alpha support premultiplied alpha. Currently, it means when argb32 and
argb32_pre are both supported.
When wl_drm is avaiable and enabled, handle "format" events and return
configs for the supported formats. Otherwise, assume all formats of
wl_shm are supported.
EGL does not export this capability of a display server. But wayland
makes use of EGL_VG_ALPHA_FORMAT to achieve it.
So, when the native display returns true for the parameter, st/egl will
set EGL_VG_ALPHA_FORMAT_PRE_BIT for all EGLConfig's with non-zero
EGL_ALPHA_SIZE. EGL_VG_ALPHA_FORMAT attribute of a surface will affect
how the surface is presented.
Because st/vega does not support EGL_VG_ALPHA_FORMAT_PRE_BIT,
EGL_OPENVG_BIT will be cleared.
Replace the parameters of native_surface::present by a struct,
native_present_control. Using a struct allows us to add more control
options without having to update each backend every time.
