From 86855365b4059c60a9e1dcc0b7713941a2507bd0 Mon Sep 17 00:00:00 2001 From: Chris Forbes Date: Sun, 7 Sep 2014 19:29:50 +1200 Subject: [PATCH] glsl: Add builtin barrier() function [jordan.l.justen@intel.com: Add CS support] Signed-off-by: Jordan Justen Reviewed-by: Ben Widawsky Reviewed-by: Kenneth Graunke --- src/glsl/builtin_functions.cpp | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/src/glsl/builtin_functions.cpp b/src/glsl/builtin_functions.cpp index 97055d85d58..efab2991993 100644 --- a/src/glsl/builtin_functions.cpp +++ b/src/glsl/builtin_functions.cpp @@ -410,6 +410,13 @@ fp64(const _mesa_glsl_parse_state *state) return state->has_double(); } +static bool +barrier_supported(const _mesa_glsl_parse_state *state) +{ + return state->stage == MESA_SHADER_COMPUTE; + /* TODO: || stage->state == MESA_SHADER_TESS_CTRL; */ +} + /** @} */ /******************************************************************************/ @@ -654,6 +661,7 @@ private: const glsl_type *stream_type); ir_function_signature *_EndStreamPrimitive(builtin_available_predicate avail, const glsl_type *stream_type); + B0(barrier) B2(textureQueryLod); B1(textureQueryLevels); @@ -1933,6 +1941,7 @@ builtin_builder::create_builtins() _EndStreamPrimitive(gs_streams, glsl_type::uint_type), _EndStreamPrimitive(gs_streams, glsl_type::int_type), NULL); + add_function("barrier", _barrier(), NULL); add_function("textureQueryLOD", _textureQueryLod(glsl_type::sampler1D_type, glsl_type::float_type), @@ -4295,6 +4304,15 @@ builtin_builder::_EndStreamPrimitive(builtin_available_predicate avail, return sig; } +ir_function_signature * +builtin_builder::_barrier() +{ + MAKE_SIG(glsl_type::void_type, barrier_supported, 0); + + body.emit(new(mem_ctx) ir_barrier()); + return sig; +} + ir_function_signature * builtin_builder::_textureQueryLod(const glsl_type *sampler_type, const glsl_type *coord_type) -- 2.30.2