diff options
| -rw-r--r-- | src/glsl/hir_field_selection.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/glsl/hir_field_selection.cpp b/src/glsl/hir_field_selection.cpp index 5500e09d7e..db1e06932f 100644 --- a/src/glsl/hir_field_selection.cpp +++ b/src/glsl/hir_field_selection.cpp @@ -71,6 +71,28 @@ _mesa_ast_field_selection_to_hir(const ast_expression *expr, "structure", expr->primary_expression.identifier); } + } else if (expr->subexpressions[1] != NULL) { + /* Handle "method calls" in GLSL 1.20 - namely, array.length() */ + if (state->language_version < 120) + _mesa_glsl_error(&loc, state, "Methods not supported in GLSL 1.10."); + + ast_expression *call = expr->subexpressions[1]; + assert(call->oper == ast_function_call); + + const char *method; + method = call->subexpressions[0]->primary_expression.identifier; + + if (op->type->is_array() && strcmp(method, "length") == 0) { + if (!call->expressions.is_empty()) + _mesa_glsl_error(&loc, state, "length method takes no arguments."); + + if (op->type->array_size() == 0) + _mesa_glsl_error(&loc, state, "length called on unsized array."); + + result = new(ctx) ir_constant(op->type->array_size()); + } else { + _mesa_glsl_error(&loc, state, "Unknown method: `%s'.", method); + } } else { _mesa_glsl_error(& loc, state, "Cannot access field `%s' of " "non-structure / non-vector.", |