From ce46e147295e841a7483d6dec2f943724ab964c3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Maxence=20Le=20Dor=C3=A9?= Date: Fri, 3 Jan 2014 00:09:51 +0100 Subject: [PATCH] glsl: Implement min3 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 18cdb2437f2..95114c885a7 100644 --- a/src/glsl/builtin_functions.cpp +++ b/src/glsl/builtin_functions.cpp @@ -576,6 +576,11 @@ private: ir_function_signature *_atomic_op(const char *intrinsic, builtin_available_predicate avail); + ir_function_signature *_min3(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 @@ -2112,6 +2117,23 @@ builtin_builder::create_builtins() shader_atomic_counters), NULL); + add_function("min3", + _min3(shader_trinary_minmax, glsl_type::float_type, glsl_type::float_type, glsl_type::float_type), + _min3(shader_trinary_minmax, glsl_type::vec2_type, glsl_type::vec2_type, glsl_type::vec2_type), + _min3(shader_trinary_minmax, glsl_type::vec3_type, glsl_type::vec3_type, glsl_type::vec3_type), + _min3(shader_trinary_minmax, glsl_type::vec4_type, glsl_type::vec4_type, glsl_type::vec4_type), + + _min3(shader_trinary_minmax, glsl_type::int_type, glsl_type::int_type, glsl_type::int_type), + _min3(shader_trinary_minmax, glsl_type::ivec2_type, glsl_type::ivec2_type, glsl_type::ivec2_type), + _min3(shader_trinary_minmax, glsl_type::ivec3_type, glsl_type::ivec3_type, glsl_type::ivec3_type), + _min3(shader_trinary_minmax, glsl_type::ivec4_type, glsl_type::ivec4_type, glsl_type::ivec4_type), + + _min3(shader_trinary_minmax, glsl_type::uint_type, glsl_type::uint_type, glsl_type::uint_type), + _min3(shader_trinary_minmax, glsl_type::uvec2_type, glsl_type::uvec2_type, glsl_type::uvec2_type), + _min3(shader_trinary_minmax, glsl_type::uvec3_type, glsl_type::uvec3_type, glsl_type::uvec3_type), + _min3(shader_trinary_minmax, glsl_type::uvec4_type, glsl_type::uvec4_type, glsl_type::uvec4_type), + NULL); + #undef F #undef FI #undef FIU @@ -3997,6 +4019,22 @@ builtin_builder::_atomic_op(const char *intrinsic, return sig; } +ir_function_signature * +builtin_builder::_min3(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 *min3 = min(x, min(y,z)); + body.emit(ret(min3)); + + return sig; +} + /** @} */ /******************************************************************************/ -- 2.30.2