From Section 7.3.1.1 (Naming Active Resources) of the OpenGL 4.5 spec:
"For the property LOCATION_COMPONENT, a single integer indicating the first
component of the location assigned to an active input or output variable is
written to params. For input and output variables with a component specified
by a layout qualifier, the specified component is written. For all other
input and output variables, the value zero is written."
---
src/mesa/main/shader_query.cpp | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/mesa/main/shader_query.cpp b/src/mesa/main/shader_query.cpp
index e526119..a1813ac 100644
--- a/src/mesa/main/shader_query.cpp
+++ b/src/mesa/main/shader_query.cpp
@@ -1245,6 +1245,15 @@ _mesa_program_resource_prop(struct gl_shader_program
*shProg,
default:
goto invalid_operation;
}
+ case GL_LOCATION_COMPONENT:
+ switch (res->Type) {
+ case GL_PROGRAM_INPUT:
+ case GL_PROGRAM_OUTPUT:
+ *val = RESOURCE_VAR(res)->data.location_frac;
+ return 1;
+ default:
+ goto invalid_operation;
+ }
case GL_LOCATION_INDEX:
if (res->Type != GL_PROGRAM_OUTPUT)
goto invalid_operation;
--
2.4.3
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