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-rw-r--r--src/gallium/drivers/etnaviv/etnaviv_compiler.c22
1 files changed, 10 insertions, 12 deletions
diff --git a/src/gallium/drivers/etnaviv/etnaviv_compiler.c b/src/gallium/drivers/etnaviv/etnaviv_compiler.c
index 2bca2dda70c..e2b906c2f6a 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_compiler.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_compiler.c
@@ -2557,6 +2557,7 @@ etna_link_shader(struct etna_shader_link_info *info,
const struct etna_shader_inout *fsio = &fs->infile.reg[idx];
const struct etna_shader_inout *vsio = etna_shader_vs_lookup(vs, fsio);
struct etna_varying *varying;
+ bool interpolate_always = fsio->semantic.Name != TGSI_SEMANTIC_COLOR;
assert(fsio->reg > 0 && fsio->reg <= ARRAY_SIZE(info->varyings));
@@ -2566,27 +2567,24 @@ etna_link_shader(struct etna_shader_link_info *info,
varying = &info->varyings[fsio->reg - 1];
varying->num_components = fsio->num_components;
- if (fsio->semantic.Name == TGSI_SEMANTIC_COLOR) /* colors affected by flat shading */
+ if (!interpolate_always) /* colors affected by flat shading */
varying->pa_attributes = 0x200;
else /* texture coord or other bypasses flat shading */
varying->pa_attributes = 0x2f1;
- if (fsio->semantic.Name == TGSI_SEMANTIC_PCOORD) {
- varying->use[0] = VARYING_COMPONENT_USE_POINTCOORD_X;
- varying->use[1] = VARYING_COMPONENT_USE_POINTCOORD_Y;
- varying->use[2] = VARYING_COMPONENT_USE_USED;
- varying->use[3] = VARYING_COMPONENT_USE_USED;
- varying->reg = 0; /* replaced by point coord -- doesn't matter */
+ varying->use[0] = interpolate_always ? VARYING_COMPONENT_USE_POINTCOORD_X : VARYING_COMPONENT_USE_USED;
+ varying->use[1] = interpolate_always ? VARYING_COMPONENT_USE_POINTCOORD_Y : VARYING_COMPONENT_USE_USED;
+ varying->use[2] = VARYING_COMPONENT_USE_USED;
+ varying->use[3] = VARYING_COMPONENT_USE_USED;
+
+
+ /* point coord is position output from VS, so has no dedicated reg */
+ if (fsio->semantic.Name == TGSI_SEMANTIC_PCOORD)
continue;
- }
if (vsio == NULL)
return true; /* not found -- link error */
- varying->use[0] = VARYING_COMPONENT_USE_USED;
- varying->use[1] = VARYING_COMPONENT_USE_USED;
- varying->use[2] = VARYING_COMPONENT_USE_USED;
- varying->use[3] = VARYING_COMPONENT_USE_USED;
varying->reg = vsio->reg;
}