Module: Mesa
Branch: master
Commit: 8ae92a9209028f5fbd2abae26b5e11047c359407
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=8ae92a9209028f5fbd2abae26b5e11047c359407
Author: Timothy Arceri <tarc...@itsqueeze.com>
Date: Mon Nov 6 22:28:21 2017 +1100
radeonsi: gather stream info in nir path
Reviewed-by: Nicolai Hähnle <nicolai.haeh...@amd.com>
---
src/gallium/drivers/radeonsi/si_shader_nir.c | 37 ++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c
b/src/gallium/drivers/radeonsi/si_shader_nir.c
index 32f6d86647..847d75ba14 100644
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -248,6 +248,43 @@ void si_nir_scan_shader(const struct nir_shader *nir,
info->output_semantic_index[i] = semantic_index;
info->output_usagemask[i] = TGSI_WRITEMASK_XYZW;
+ unsigned num_components = 4;
+ unsigned vector_elements =
glsl_get_vector_elements(glsl_without_array(variable->type));
+ if (vector_elements)
+ num_components = vector_elements;
+
+ unsigned gs_out_streams;
+ if (variable->data.stream & (1u << 31)) {
+ gs_out_streams = variable->data.stream & ~(1u << 31);
+ } else {
+ assert(variable->data.stream < 4);
+ gs_out_streams = 0;
+ for (unsigned j = 0; j < num_components; ++j)
+ gs_out_streams |= variable->data.stream << (2 *
(variable->data.location_frac + j));
+ }
+
+ unsigned streamx = gs_out_streams & 3;
+ unsigned streamy = (gs_out_streams >> 2) & 3;
+ unsigned streamz = (gs_out_streams >> 4) & 3;
+ unsigned streamw = (gs_out_streams >> 6) & 3;
+
+ if (info->output_usagemask[i] & TGSI_WRITEMASK_X) {
+ info->output_streams[i] |= streamx;
+ info->num_stream_output_components[streamx]++;
+ }
+ if (info->output_usagemask[i] & TGSI_WRITEMASK_Y) {
+ info->output_streams[i] |= streamy << 2;
+ info->num_stream_output_components[streamy]++;
+ }
+ if (info->output_usagemask[i] & TGSI_WRITEMASK_Z) {
+ info->output_streams[i] |= streamz << 4;
+ info->num_stream_output_components[streamz]++;
+ }
+ if (info->output_usagemask[i] & TGSI_WRITEMASK_W) {
+ info->output_streams[i] |= streamw << 6;
+ info->num_stream_output_components[streamw]++;
+ }
+
switch (semantic_name) {
case TGSI_SEMANTIC_PRIMID:
info->writes_primid = true;
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