From: Elie Tournier <tournier.e...@gmail.com> v2: use mix.
Signed-off-by: Elie Tournier <elie.tourn...@collabora.com> --- src/compiler/glsl/builtin_float64.h | 28 ++++++++++++++++++++++++++++ src/compiler/glsl/builtin_functions.cpp | 4 ++++ src/compiler/glsl/builtin_functions.h | 3 +++ src/compiler/glsl/float64.glsl | 9 +++++++++ src/compiler/glsl/glcpp/glcpp-parse.y | 1 + 5 files changed, 45 insertions(+) diff --git a/src/compiler/glsl/builtin_float64.h b/src/compiler/glsl/builtin_float64.h index 2898fc9..8546048 100644 --- a/src/compiler/glsl/builtin_float64.h +++ b/src/compiler/glsl/builtin_float64.h @@ -68,3 +68,31 @@ fneg64(void *mem_ctx, builtin_available_predicate avail) sig->replace_parameters(&sig_parameters); return sig; } +ir_function_signature * +fsign64(void *mem_ctx, builtin_available_predicate avail) +{ + ir_function_signature *const sig = + new(mem_ctx) ir_function_signature(glsl_type::uvec2_type, avail); + ir_factory body(&sig->body, mem_ctx); + sig->is_defined = true; + + exec_list sig_parameters; + + ir_variable *const r001D = new(mem_ctx) ir_variable(glsl_type::uvec2_type, "a", ir_var_function_in); + sig_parameters.push_tail(r001D); + ir_variable *const r001E = new(mem_ctx) ir_variable(glsl_type::uvec2_type, "retval", ir_var_auto); + body.emit(r001E); + body.emit(assign(r001E, body.constant(0u), 0x01)); + + ir_expression *const r001F = lshift(swizzle_y(r001D), body.constant(int(1))); + ir_expression *const r0020 = bit_or(r001F, swizzle_x(r001D)); + ir_expression *const r0021 = equal(r0020, body.constant(0u)); + ir_expression *const r0022 = bit_and(swizzle_y(r001D), body.constant(2147483648u)); + ir_expression *const r0023 = bit_or(r0022, body.constant(1072693248u)); + body.emit(assign(r001E, expr(ir_triop_csel, r0021, body.constant(0u), r0023), 0x02)); + + body.emit(ret(r001E)); + + sig->replace_parameters(&sig_parameters); + return sig; +} diff --git a/src/compiler/glsl/builtin_functions.cpp b/src/compiler/glsl/builtin_functions.cpp index 9d88a31..17aa868 100644 --- a/src/compiler/glsl/builtin_functions.cpp +++ b/src/compiler/glsl/builtin_functions.cpp @@ -3350,6 +3350,10 @@ builtin_builder::create_builtins() generate_ir::fneg64(mem_ctx, integer_functions_supported), NULL); + add_function("__builtin_fsign64", + generate_ir::fsign64(mem_ctx, integer_functions_supported), + NULL); + #undef F #undef FI #undef FIUD_VEC diff --git a/src/compiler/glsl/builtin_functions.h b/src/compiler/glsl/builtin_functions.h index adec424..7954373 100644 --- a/src/compiler/glsl/builtin_functions.h +++ b/src/compiler/glsl/builtin_functions.h @@ -73,6 +73,9 @@ fabs64(void *mem_ctx, builtin_available_predicate avail); ir_function_signature * fneg64(void *mem_ctx, builtin_available_predicate avail); +ir_function_signature * +fsign64(void *mem_ctx, builtin_available_predicate avail); + } #endif /* BULITIN_FUNCTIONS_H */ diff --git a/src/compiler/glsl/float64.glsl b/src/compiler/glsl/float64.glsl index fedf8b7..f8eb1f3 100644 --- a/src/compiler/glsl/float64.glsl +++ b/src/compiler/glsl/float64.glsl @@ -51,3 +51,12 @@ fneg64(uvec2 a) a.y = mix(t, a.y, is_nan(a)); return a; } + +uvec2 +fsign64(uvec2 a) +{ + uvec2 retval; + retval.x = 0u; + retval.y = mix((a.y & 0x80000000u) | 0x3FF00000u, 0u, (a.y << 1 | a.x) == 0u); + return retval; +} diff --git a/src/compiler/glsl/glcpp/glcpp-parse.y b/src/compiler/glsl/glcpp/glcpp-parse.y index b9506d8..666543b 100644 --- a/src/compiler/glsl/glcpp/glcpp-parse.y +++ b/src/compiler/glsl/glcpp/glcpp-parse.y @@ -2370,6 +2370,7 @@ _glcpp_parser_handle_version_declaration(glcpp_parser_t *parser, intmax_t versio add_builtin_define(parser, "__have_builtin_builtin_imod64", 1); add_builtin_define(parser, "__have_builtin_builtin_fabs64", 1); add_builtin_define(parser, "__have_builtin_builtin_fneg64", 1); + add_builtin_define(parser, "__have_builtin_builtin_fsign64", 1); } } -- 2.9.5 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev