In preparation of ARB_clip_control. Let the driver decide if
it supports pipe_rasterizer_state::clip_halfz being set to true.
v3:
Initially enable on ilo.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Mathias Froehlich <Mathias.Froehlich@web.de
This allows vc4_opt_cse.c to CSE-away operations involving the same
uniform values.
total instructions in shared programs: 37341 -> 36906 (-1.16%)
instructions in affected programs: 10233 -> 9798 (-4.25%)
total uniforms in shared programs: 10523 -> 10320 (-1.93%)
uniforms in affected programs: 2467 -> 2264 (-8.23%)
This saves a bunch of extra flushes when texsubimaging a whole texture
that's been used for rendering, or subdataing a whole BO. In particular,
this massively reduces the runtime of piglit texture-packed-formats (when
the probes have been moved out of the inner loop).
I'm going to be using VC4_DEBUG=shaderdb,norast to do shaderdb stats, but
when debugging regressions, I want to match shaderdb output to shader
disassembly.
With 5 shader stages and various combinations of enabled and disabled shaders,
the maximum number of outputs in one shader doesn't have to be equal to
the maximum number of inputs in the following shader.
v2: return 32 for softpipe and llvmpipe
If the writemask doesn't compress, then we want to put in the uncompressed
writemask, not the compressed writemask failure value (all-on).
Fixes glean's stencil2 and fbo-clear-formats on stencil.
GLES2 doesn't have GL_TEXTURE_BASE_LEVEL, so the hardware doesn't. Fixes
piglit levelclamp, tex-miplevel-selection, and texture-storage/2D mipmap
rendering.
Notably this included the EOF flag (the other bits are the full buffer
dump selection, but we don't do full dumps), which caused the kernel
checking for frame completion to trigger.
The other driver does this manually before calling into each tile, but we
can just let it get binned into the tiles (saving repeated kernel
validation on the packet).
Fixes simulator assertion failures on polygon-mode and non-auto texwrap.
We don't need to emit all of our current state at the end of each bin
list. We're going to be smashing it all at the start of the next tile's
bin list, anyway.
The kernel files are built into a separate static library and
all the functions that require it are already wrapped in ifdef
USE_VC4_SIMULATOR. Don't forget the header file :)
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
The texturing hardware takes the POT level 0 width/height and minifies
those. This is different from what we were doing, for example, for
273-wide's level 5: POT(273>>5) == 8, while POT(273)>>5 == 16.
Fixes piglit-depthstencil-render-miplevels 273.
This gets them to pass glsl-sin/cos. There was an obvious problem that I
was using the FRC code on the scaled input value, which means that we had
a range in [0, 1], while our taylor is most accurate across [-0.5, 0.5].
We can just slide things over, but that means flipping the sign of the
coefficients. After that, it was just a matter of stuffing more
coefficients in.
If the VS doesn't output a value that the FS needs, we still need to read
the right contents for the remaining FS inputs, by emitting padding. And
if the VS outputs something the FS doesn't need, we shouldn't put it in
the VPM at all (so the code producing it can get DCEed).
Fixes 77 piglit tests.
Copy propagating these might result in reading the r4 after some other
instruction has written r4. Just prevent all copy propagation of this for
now.
Fixes bad rendering with upcoming indirect register access support, where
the copy propagation was consistently happening across another read.
Merging VS and CS into the same struct wasn't winning us anything except
for not allocating a separate BO (but if we want to pack programs into
BOs, we should pack not just those 2 programs together). What it was
getting us was a bunch of code duplication about hash table lookups and
propagating vc4_compile contents into a vc4_compiled_shader.
I was about to make the situation worse with indirect uniform buffer
access.
I wanted to make another set of texture uploads for handling reladdr
constants, and duplicating all the bitshifting looked like a terrible
idea. In the process, this fixes a swap of the s/t texture wrap modes.
Under the simulator, reading registers before writing them triggers an
assertion failure. c->undef gets treated as r0, which will usually be
written, but not if it's used in the first instruction. We should
definitely not be aborting in this case, and return some sort of undefined
value instead.
Fixes glsl-user-varying-ff.
The non-base NPOT levels are stored as POT-aligned images. We get that
POT alignment by minifying the POT-aligned base level.
This means that level strides are also POT aligned, so we have to tell the
rendering mode config that our resource is larger than the actual
requested area.
Fixes the fbo-generatemipmap-formats NPOT cases. Regresses
depthstencil-render-miplevels 273 * -- the texture presentation now works
(where it was completely broken before), it looks like there's some
overflow of image bounds happening at the lower miplevels.
Mathias Fröhlich
Eric Anholt
Marek Olšák
Emil Velikov