diff options
| author | Eric Anholt <eric@anholt.net> | 2010-03-28 01:55:38 -0700 |
|---|---|---|
| committer | Ian Romanick <ian.d.romanick@intel.com> | 2010-03-29 12:48:45 -0700 |
| commit | d1e31952ed282851ae29e2c15cb86bf84283ee4e (patch) | |
| tree | 3f91d1746f99e7457e438e0c2eb45a725bab0d08 /builtin_function.cpp | |
| parent | 78fe3c9150c0c5f77a20a790ee7441f8a9d1de5f (diff) | |
Add support for builtin radians() and degrees().
Diffstat (limited to 'builtin_function.cpp')
| -rw-r--r-- | builtin_function.cpp | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/builtin_function.cpp b/builtin_function.cpp index 58e3abfceb..8e7e1164b8 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 @@ generate_binop(exec_list *instructions, } 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 @@ generate_dot_functions(glsl_symbol_table *symtab, exec_list *instructions) 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() */ |