Signed-off-by: Chris Forbes <chr...@ijw.co.nz>
---
src/glsl/builtin_functions.cpp | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/src/glsl/builtin_functions.cpp b/src/glsl/builtin_functions.cpp
index 3ea3a3f..c55115c 100644
--- a/src/glsl/builtin_functions.cpp
+++ b/src/glsl/builtin_functions.cpp
@@ -565,6 +565,7 @@ private:
B1(usubBorrow)
B1(mulExtended)
B1(interpolateAtCentroid)
+ B1(interpolateAtOffset)
ir_function_signature *_atomic_intrinsic(builtin_available_predicate avail);
ir_function_signature *_atomic_op(const char *intrinsic,
@@ -2099,6 +2100,12 @@ builtin_builder::create_builtins()
_interpolateAtCentroid(glsl_type::vec3_type),
_interpolateAtCentroid(glsl_type::vec4_type),
NULL);
+ add_function("interpolateAtOffset",
+ _interpolateAtOffset(glsl_type::float_type),
+ _interpolateAtOffset(glsl_type::vec2_type),
+ _interpolateAtOffset(glsl_type::vec3_type),
+ _interpolateAtOffset(glsl_type::vec4_type),
+ NULL);
add_function("atomicCounter",
_atomic_op("__intrinsic_atomic_read",
@@ -3988,6 +3995,18 @@ builtin_builder::_interpolateAtCentroid(const glsl_type
*type)
}
ir_function_signature *
+builtin_builder::_interpolateAtOffset(const glsl_type *type)
+{
+ ir_variable *interpolant = new(mem_ctx) ir_variable(type, "interpolant",
ir_var_shader_in);
+ ir_variable *offset = in_var(glsl_type::vec2_type, "offset");
+ MAKE_SIG(type, gpu_shader5, 2, interpolant, offset);
+
+ body.emit(ret(interpolate_at_offset(interpolant, offset)));
+
+ return sig;
+}
+
+ir_function_signature *
builtin_builder::_atomic_intrinsic(builtin_available_predicate avail)
{
ir_variable *counter = in_var(glsl_type::atomic_uint_type, "counter");
--
1.8.4.2
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