From b09ae5dd3f9b8e380e2608f4ee3a7902f5ecc15e Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Thu, 22 Jul 2010 15:34:49 -0700 Subject: ir_constant_expression: Add support for the "transpose" builtin. --- src/glsl/ir_constant_expression.cpp | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'src/glsl/ir_constant_expression.cpp') diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp index b6cb2d8672..c4e6d837b0 100644 --- a/src/glsl/ir_constant_expression.cpp +++ b/src/glsl/ir_constant_expression.cpp @@ -1096,7 +1096,14 @@ ir_call::constant_expression_value() for (unsigned c = 0; c < op[0]->type->components(); c++) data.f[c] = tanhf(op[0]->value.f[c]); } else if (strcmp(callee, "transpose") == 0) { - return NULL; /* FINISHME: implement this */ + assert(op[0]->type->is_matrix()); + const unsigned n = op[0]->type->vector_elements; + const unsigned m = op[0]->type->matrix_columns; + for (unsigned j = 0; j < m; j++) { + for (unsigned i = 0; i < n; i++) { + data.f[m*i+j] += op[0]->value.f[i+n*j]; + } + } } else { /* Unsupported builtin - some are not allowed in constant expressions. */ return NULL; -- cgit v1.2.3