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radeonsi: gather stream info in nir path

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Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Timothy Arceri
2017-11-06 22:28:21 +11:00
parent cd58b98b03
commit 8ae92a9209
1 changed files with 37 additions and 0 deletions
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src/gallium/drivers/radeonsi/si_shader_nir.c
+37
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@@ -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;