Add support for builtin radians() and degrees().
diff --git a/builtin_function.cpp b/builtin_function.cpp
index 58e3abf..8e7e116 100644
--- a/builtin_function.cpp
+++ b/builtin_function.cpp
@@ -22,6 +22,7 @@
*/
#include <stdlib.h>
+#include <math.h>
#include "glsl_symbol_table.h"
#include "glsl_parser_extras.h"
#include "glsl_types.h"
@@ -61,6 +62,40 @@
}
static void
+generate_radians(exec_list *instructions,
+ ir_variable **declarations,
+ const glsl_type *type)
+{
+ ir_dereference *const retval = new ir_dereference(declarations[16]);
+ ir_dereference *const arg = new ir_dereference(declarations[0]);
+ ir_rvalue *result;
+
+ result = new ir_expression(ir_binop_mul, type,
+ arg,
+ new ir_constant((float)(M_PI / 180.0)));
+
+ ir_instruction *inst = new ir_assignment(retval, result, NULL);
+ instructions->push_tail(inst);
+}
+
+static void
+generate_degrees(exec_list *instructions,
+ ir_variable **declarations,
+ const glsl_type *type)
+{
+ ir_dereference *const retval = new ir_dereference(declarations[16]);
+ ir_dereference *const arg = new ir_dereference(declarations[0]);
+ ir_rvalue *result;
+
+ result = new ir_expression(ir_binop_mul, type,
+ arg,
+ new ir_constant((float)(180.0 / M_PI)));
+
+ ir_instruction *inst = new ir_assignment(retval, result, NULL);
+ instructions->push_tail(inst);
+}
+
+static void
generate_exp(exec_list *instructions,
ir_variable **declarations,
const glsl_type *type)
@@ -324,8 +359,8 @@
void
generate_110_functions(glsl_symbol_table *symtab, exec_list *instructions)
{
- /* FINISHME: radians() */
- /* FINISHME: degrees() */
+ make_gentype_function(symtab, instructions, "radians", 1, generate_radians);
+ make_gentype_function(symtab, instructions, "degrees", 1, generate_degrees);
/* FINISHME: sin() */
/* FINISHME: cos() */
/* FINISHME: tan() */