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gallium: Add a PIPE_CAP_NIR_COMPACT_ARRAYS capability bit. 

Iris would like to use compact arrays for tesslevels and clip/cull
distances.  radeonsi will likely want to switch to these at some point,
since it'll be necessary for GL_ARB_gl_spirv support, but it's not ready
for them just yet.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
This commit is contained in:
Kenneth Graunke 2019-01-23 02:04:01 -08:00
parent cf731564e6
commit 8fa54bc549
4 changed files with 8 additions and 2 deletions
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1
src/gallium/auxiliary/util/u_screen.c
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@ -289,6 +289,7 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen,
case PIPE_CAP_POST_DEPTH_COVERAGE:
case PIPE_CAP_BINDLESS_TEXTURE:
case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
case PIPE_CAP_NIR_COMPACT_ARRAYS:
case PIPE_CAP_QUERY_SO_OVERFLOW:
case PIPE_CAP_MEMOBJ:
case PIPE_CAP_LOAD_CONSTBUF:

1
src/gallium/docs/source/screen.rst
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@ -487,6 +487,7 @@ The integer capabilities:
* ``PIPE_CAP_DEST_SURFACE_SRGB_CONTROL``: Indicates whether the drivers
supports switching the format between sRGB and linear for a surface that is
used as destination in draw and blit calls.
* ``PIPE_CAP_NIR_COMPACT_ARRAYS``: True if the compiler backend supports NIR's compact array feature, for all shader stages.
.. _pipe_capf:

1
src/gallium/include/pipe/p_defines.h
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@ -856,6 +856,7 @@ enum pipe_cap
PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE,
PIPE_CAP_RGB_OVERRIDE_DST_ALPHA_BLEND,
PIPE_CAP_DEST_SURFACE_SRGB_CONTROL,
PIPE_CAP_NIR_COMPACT_ARRAYS,
};
/**

7
src/mesa/state_tracker/st_extensions.c
View File

@ -321,7 +321,9 @@ void st_init_limits(struct pipe_screen *screen,
screen->get_shader_param(screen, sh,
PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
options->LowerCombinedClipCullDistance = true;
if (!screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS))
options->LowerCombinedClipCullDistance = true;
options->LowerBufferInterfaceBlocks = true;
}
@ -336,7 +338,8 @@ void st_init_limits(struct pipe_screen *screen,
screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
c->GLSLTessLevelsAsInputs =
screen->get_param(screen, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS);
c->LowerTessLevel = true;
c->LowerTessLevel =
!screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS);
c->LowerCsDerivedVariables = true;
c->PrimitiveRestartForPatches =
screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);