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-rw-r--r--src/compiler/glsl/link_varyings.cpp43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/compiler/glsl/link_varyings.cpp b/src/compiler/glsl/link_varyings.cpp
index dadbf1e6859..dae6fb216c7 100644
--- a/src/compiler/glsl/link_varyings.cpp
+++ b/src/compiler/glsl/link_varyings.cpp
@@ -63,6 +63,49 @@ get_varying_type(const ir_variable *var, gl_shader_stage stage)
return type;
}
+static void
+create_xfb_varying_names(void *mem_ctx, const glsl_type *t, char **name,
+ size_t name_length, unsigned *count,
+ const char *ifc_member_name,
+ const glsl_type *ifc_member_t, char ***varying_names)
+{
+ if (t->is_interface()) {
+ size_t new_length = name_length;
+
+ assert(ifc_member_name && ifc_member_t);
+ ralloc_asprintf_rewrite_tail(name, &new_length, ".%s", ifc_member_name);
+
+ create_xfb_varying_names(mem_ctx, ifc_member_t, name, new_length, count,
+ NULL, NULL, varying_names);
+ } else if (t->is_record()) {
+ for (unsigned i = 0; i < t->length; i++) {
+ const char *field = t->fields.structure[i].name;
+ size_t new_length = name_length;
+
+ ralloc_asprintf_rewrite_tail(name, &new_length, ".%s", field);
+
+ create_xfb_varying_names(mem_ctx, t->fields.structure[i].type, name,
+ new_length, count, NULL, NULL,
+ varying_names);
+ }
+ } else if (t->without_array()->is_record() ||
+ t->without_array()->is_interface() ||
+ (t->is_array() && t->fields.array->is_array())) {
+ for (unsigned i = 0; i < t->length; i++) {
+ size_t new_length = name_length;
+
+ /* Append the subscript to the current variable name */
+ ralloc_asprintf_rewrite_tail(name, &new_length, "[%u]", i);
+
+ create_xfb_varying_names(mem_ctx, t->fields.array, name, new_length,
+ count, ifc_member_name, ifc_member_t,
+ varying_names);
+ }
+ } else {
+ (*varying_names)[(*count)++] = ralloc_strdup(mem_ctx, *name);
+ }
+}
+
/**
* Validate the types and qualifiers of an output from one stage against the
* matching input to another stage.