From eb5dc75601708d2d9bdf822960ae5b9151c105a1 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Maxence=20Le=20Dor=C3=A9?= Date: Fri, 3 Jan 2014 00:09:53 +0100 Subject: [PATCH] glsl: implement mid3 built-in function Reviewed-by: Kenneth Graunke --- src/glsl/builtin_functions.cpp | 38 ++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/src/glsl/builtin_functions.cpp b/src/glsl/builtin_functions.cpp index 94ae2a46a81..f56be0c691a 100644 --- a/src/glsl/builtin_functions.cpp +++ b/src/glsl/builtin_functions.cpp @@ -586,6 +586,11 @@ private: const glsl_type *y_type, const glsl_type *z_type); + ir_function_signature *_mid3(builtin_available_predicate avail, + const glsl_type *x_type, + const glsl_type *y_type, + const glsl_type *z_type); + #undef B0 #undef B1 #undef B2 @@ -2156,6 +2161,23 @@ builtin_builder::create_builtins() _max3(shader_trinary_minmax, glsl_type::uvec4_type, glsl_type::uvec4_type, glsl_type::uvec4_type), NULL); + add_function("mid3", + _mid3(shader_trinary_minmax, glsl_type::float_type, glsl_type::float_type, glsl_type::float_type), + _mid3(shader_trinary_minmax, glsl_type::vec2_type, glsl_type::vec2_type, glsl_type::vec2_type), + _mid3(shader_trinary_minmax, glsl_type::vec3_type, glsl_type::vec3_type, glsl_type::vec3_type), + _mid3(shader_trinary_minmax, glsl_type::vec4_type, glsl_type::vec4_type, glsl_type::vec4_type), + + _mid3(shader_trinary_minmax, glsl_type::int_type, glsl_type::int_type, glsl_type::int_type), + _mid3(shader_trinary_minmax, glsl_type::ivec2_type, glsl_type::ivec2_type, glsl_type::ivec2_type), + _mid3(shader_trinary_minmax, glsl_type::ivec3_type, glsl_type::ivec3_type, glsl_type::ivec3_type), + _mid3(shader_trinary_minmax, glsl_type::ivec4_type, glsl_type::ivec4_type, glsl_type::ivec4_type), + + _mid3(shader_trinary_minmax, glsl_type::uint_type, glsl_type::uint_type, glsl_type::uint_type), + _mid3(shader_trinary_minmax, glsl_type::uvec2_type, glsl_type::uvec2_type, glsl_type::uvec2_type), + _mid3(shader_trinary_minmax, glsl_type::uvec3_type, glsl_type::uvec3_type, glsl_type::uvec3_type), + _mid3(shader_trinary_minmax, glsl_type::uvec4_type, glsl_type::uvec4_type, glsl_type::uvec4_type), + NULL); + #undef F #undef FI #undef FIU @@ -4073,6 +4095,22 @@ builtin_builder::_max3(builtin_available_predicate avail, return sig; } +ir_function_signature * +builtin_builder::_mid3(builtin_available_predicate avail, + const glsl_type *x_type, const glsl_type *y_type, + const glsl_type *z_type) +{ + ir_variable *x = in_var(x_type, "x"); + ir_variable *y = in_var(y_type, "y"); + ir_variable *z = in_var(z_type, "z"); + MAKE_SIG(x_type, avail, 3, x, y, z); + + ir_expression *mid3 = max(min(x, y), max(min(x, z), min(y, z))); + body.emit(ret(mid3)); + + return sig; +} + /** @} */ /******************************************************************************/ -- 2.30.2