<div dir="ltr">Hi Mark,<div>AFAIK there is no piglit test for this specific extension. However underneath the hood it reuses the</div><div>functionality of ARB_fragment_shader_interlock, which has a test. I believe the only major difference between</div><div>the two extensions is that unlike beginInvocationInterlockARB, <span style="color:rgb(0,0,0);white-space:pre-wrap">beginFragmentShaderOrderingINTEL can</span><br></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">be called from functions other than main(). If necessary it would be pretty straightforward to reuse most of the code</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">for the </span>ARB_fragment_shader_interlock test to create one for INTEL_fragment_shader_ordering.</div><div><br></div><div>Thank you,<br></div><div>Pam</div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Aug 28, 2018 at 6:41 PM Mark Janes <<a href="mailto:mark.a.janes@intel.com" target="_blank">mark.a.janes@intel.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Is there a piglit test that verifies that this feature works properly?<br>
<br>
<<a href="mailto:kevin.rogovin@intel.com" target="_blank">kevin.rogovin@intel.com</a>> writes:<br>
<br>
> From: Kevin Rogovin <<a href="mailto:kevin.rogovin@intel.com" target="_blank">kevin.rogovin@intel.com</a>><br>
><br>
> INTEL_fragment_shader_ordering provides the ability for shaders<br>
> to issue a call to gaurnantee memory write operation ordering<br>
> of overlapping pixels or samples. In contrast to<br>
> ARB_fragment_shader_interlock, INTEL_fragment_shader_ordering<br>
> instead of defining a critical region (which must be in main() and<br>
> under no flow control) provides a single function that acts like<br>
> a memory barrier that can be called under any control flow.<br>
><br>
> Kevin Rogovin (2):<br>
> mesa: Add GL/GLSL plumbing for INTEL_fragment_shader_ordering.<br>
> i965: Add INTEL_fragment_shader_ordering support.<br>
><br>
> docs/relnotes/18.3.0.html | 1 +<br>
> src/compiler/glsl/builtin_functions.cpp | 17 +++++++++++++++++<br>
> src/compiler/glsl/glsl_parser_extras.cpp | 1 +<br>
> src/compiler/glsl/glsl_parser_extras.h | 2 ++<br>
> src/compiler/glsl/glsl_to_nir.cpp | 6 ++++++<br>
> src/compiler/glsl/ir.h | 1 +<br>
> src/compiler/nir/nir_intrinsics.py | 1 +<br>
> src/intel/compiler/brw_fs_nir.cpp | 1 +<br>
> src/mesa/drivers/dri/i965/intel_extensions.c | 1 +<br>
> src/mesa/main/extensions_table.h | 1 +<br>
> src/mesa/main/mtypes.h | 1 +<br>
> 11 files changed, 33 insertions(+)<br>
><br>
> -- <br>
> 2.17.1<br>
><br>
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</blockquote></div>