From: Dave Airlie <airl...@redhat.com>
This hack for fixing gl_FragDepth apparantly caused a GLSL shader
outputting a single double to try and output a dvec4, but we hadn't
assigned outputs for the secondary bit.
This avoids going into the hack code for scalar doubles.
Signed-off-by: Dave Airlie <airl...@redhat.com>
---
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index e3f79ed..51ee98a 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -2727,6 +2727,7 @@ glsl_to_tgsi_visitor::visit(ir_assignment *ir)
assert(!ir->lhs->type->is_scalar() && !ir->lhs->type->is_vector());
l.writemask = WRITEMASK_XYZW;
} else if (ir->lhs->type->is_scalar() &&
+ !ir->lhs->type->is_double() &&
ir->lhs->variable_referenced()->data.mode == ir_var_shader_out) {
/* FINISHME: This hack makes writing to gl_FragDepth, which lives in the
* FINISHME: W component of fragment shader output zero, work correctly.
--
1.9.3
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