diff options
Diffstat (limited to 'src/glsl/builtin_functions.cpp')
| -rw-r--r-- | src/glsl/builtin_functions.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/glsl/builtin_functions.cpp b/src/glsl/builtin_functions.cpp index 5b1b9c3..d40888d 100644 --- a/src/glsl/builtin_functions.cpp +++ b/src/glsl/builtin_functions.cpp @@ -533,6 +533,7 @@ private: B2(frexp) B1(uaddCarry) B1(usubBorrow) + B1(mulExtended) #undef B0 #undef B1 #undef B2 @@ -1961,6 +1962,18 @@ builtin_builder::create_builtins() _usubBorrow(glsl_type::uvec3_type), _usubBorrow(glsl_type::uvec4_type), NULL); + add_function("imulExtended", + _mulExtended(glsl_type::int_type), + _mulExtended(glsl_type::ivec2_type), + _mulExtended(glsl_type::ivec3_type), + _mulExtended(glsl_type::ivec4_type), + NULL); + add_function("umulExtended", + _mulExtended(glsl_type::uint_type), + _mulExtended(glsl_type::uvec2_type), + _mulExtended(glsl_type::uvec3_type), + _mulExtended(glsl_type::uvec4_type), + NULL); #undef F #undef FI #undef FIU @@ -3762,6 +3775,24 @@ builtin_builder::_usubBorrow(const glsl_type *type) return sig; } + +/** + * For both imulExtended() and umulExtended() built-ins. + */ +ir_function_signature * +builtin_builder::_mulExtended(const glsl_type *type) +{ + ir_variable *x = in_var(type, "x"); + ir_variable *y = in_var(type, "y"); + ir_variable *msb = out_var(type, "msb"); + ir_variable *lsb = out_var(type, "lsb"); + MAKE_SIG(glsl_type::void_type, gpu_shader5, 4, x, y, msb, lsb); + + body.emit(assign(msb, imul_high(x, y))); + body.emit(assign(lsb, mul(x, y))); + + return sig; +} /** @} */ /******************************************************************************/ |