diff options
| -rw-r--r-- | src/compiler/glsl/link_varyings.cpp | 43 |
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. |