Mesa (main): llvmpipe: disable PIPE_SHADER_CAP_FP16_CONST_BUFFERS

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Module: Mesa
Branch: main
Commit: 9a75392cd829df3f8f5a89dfecd4f2103658bfbd
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9a75392cd829df3f8f5a89dfecd4f2103658bfbd

Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date:   Wed Feb  2 15:54:45 2022 -0500

llvmpipe: disable PIPE_SHADER_CAP_FP16_CONST_BUFFERS

this cap is broken

cc: mesa-stable

fixes:
GTF-GL46.gtf21.GL2Tests.glGetUniform.glGetUnifor

Reviewed-by: Dave Airlie <airlied at redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14835>

---

 src/gallium/auxiliary/gallivm/lp_bld_limits.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_limits.h b/src/gallium/auxiliary/gallivm/lp_bld_limits.h
index 573237e23d0..55778f2b6fb 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_limits.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_limits.h
@@ -132,8 +132,10 @@ gallivm_get_shader_param(enum pipe_shader_cap param)
       return 1;
    case PIPE_SHADER_CAP_FP16:
    case PIPE_SHADER_CAP_FP16_DERIVATIVES:
-   case PIPE_SHADER_CAP_FP16_CONST_BUFFERS:
       return lp_has_fp16();
+   //enabling this breaks GTF-GL46.gtf21.GL2Tests.glGetUniform.glGetUniform
+   case PIPE_SHADER_CAP_FP16_CONST_BUFFERS:
+      return 0;
    case PIPE_SHADER_CAP_INT64_ATOMICS:
       return 0;
    case PIPE_SHADER_CAP_INT16: