[Mesa-dev] [PATCH] glsl: fix counting of vertex shader output slots used by explicit vars
Ilia Mirkin
imirkin at alum.mit.edu
Sun Aug 27 04:12:02 UTC 2017
The argument to count_attribute_slots should only be set to true for
vertex inputs, not for all vertex shader varyings.
Fixes KHR-GL45.enhanced_layouts.varying_locations
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Cc: mesa-stable at lists.freedesktop.org
---
src/compiler/glsl/link_varyings.cpp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/compiler/glsl/link_varyings.cpp b/src/compiler/glsl/link_varyings.cpp
index 6c9a3d12d1d..528506fd0eb 100644
--- a/src/compiler/glsl/link_varyings.cpp
+++ b/src/compiler/glsl/link_varyings.cpp
@@ -2072,7 +2072,8 @@ reserved_varying_slot(struct gl_linked_shader *stage,
var_slot = var->data.location - VARYING_SLOT_VAR0;
unsigned num_elements = get_varying_type(var, stage->Stage)
- ->count_attribute_slots(stage->Stage == MESA_SHADER_VERTEX);
+ ->count_attribute_slots(io_mode == ir_var_shader_in &&
+ stage->Stage == MESA_SHADER_VERTEX);
for (unsigned i = 0; i < num_elements; i++) {
if (var_slot >= 0 && var_slot < MAX_VARYINGS_INCL_PATCH)
slots |= UINT64_C(1) << var_slot;
--
2.13.5
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