aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/glsl/ir.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'mesalib/src/glsl/ir.cpp')
-rw-r--r--mesalib/src/glsl/ir.cpp24
1 files changed, 20 insertions, 4 deletions
diff --git a/mesalib/src/glsl/ir.cpp b/mesalib/src/glsl/ir.cpp
index d968890a2..ef7300e65 100644
--- a/mesalib/src/glsl/ir.cpp
+++ b/mesalib/src/glsl/ir.cpp
@@ -1320,7 +1320,7 @@ ir_swizzle::variable_referenced() const
ir_variable::ir_variable(const struct glsl_type *type, const char *name,
ir_variable_mode mode)
: max_array_access(0), read_only(false), centroid(false), invariant(false),
- mode(mode), interpolation(ir_var_smooth)
+ mode(mode), interpolation(INTERP_QUALIFIER_NONE)
{
this->ir_type = ir_type_variable;
this->type = type;
@@ -1343,9 +1343,10 @@ const char *
ir_variable::interpolation_string() const
{
switch (this->interpolation) {
- case ir_var_smooth: return "smooth";
- case ir_var_flat: return "flat";
- case ir_var_noperspective: return "noperspective";
+ case INTERP_QUALIFIER_NONE: return "no";
+ case INTERP_QUALIFIER_SMOOTH: return "smooth";
+ case INTERP_QUALIFIER_FLAT: return "flat";
+ case INTERP_QUALIFIER_NOPERSPECTIVE: return "noperspective";
}
assert(!"Should not get here.");
@@ -1353,6 +1354,21 @@ ir_variable::interpolation_string() const
}
+glsl_interp_qualifier
+ir_variable::determine_interpolation_mode(bool flat_shade)
+{
+ if (this->interpolation != INTERP_QUALIFIER_NONE)
+ return (glsl_interp_qualifier) this->interpolation;
+ int location = this->location;
+ bool is_gl_Color =
+ location == FRAG_ATTRIB_COL0 || location == FRAG_ATTRIB_COL1;
+ if (flat_shade && is_gl_Color)
+ return INTERP_QUALIFIER_FLAT;
+ else
+ return INTERP_QUALIFIER_SMOOTH;
+}
+
+
ir_function_signature::ir_function_signature(const glsl_type *return_type)
: return_type(return_type), is_defined(false), _function(NULL)
{