glsl: Create file to contain software fp64 functions
The following patches will add implementations of various double-precision operations to this file. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
58
src/compiler/glsl/float64.glsl
Normal file
58
src/compiler/glsl/float64.glsl
Normal file
@@ -0,0 +1,58 @@
|
||||
/*
|
||||
* The implementations contained in this file are heavily based on the
|
||||
* implementations found in the Berkeley SoftFloat library. As such, they are
|
||||
* licensed under the same 3-clause BSD license:
|
||||
*
|
||||
* License for Berkeley SoftFloat Release 3e
|
||||
*
|
||||
* John R. Hauser
|
||||
* 2018 January 20
|
||||
*
|
||||
* The following applies to the whole of SoftFloat Release 3e as well as to
|
||||
* each source file individually.
|
||||
*
|
||||
* Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 The Regents of the
|
||||
* University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions, and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions, and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
|
||||
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
|
||||
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#version 430
|
||||
#extension GL_ARB_gpu_shader_int64 : enable
|
||||
#extension GL_ARB_shader_bit_encoding : enable
|
||||
|
||||
#pragma warning(off)
|
||||
|
||||
/* Software IEEE floating-point rounding mode.
|
||||
* GLSL spec section "4.7.1 Range and Precision":
|
||||
* The rounding mode cannot be set and is undefined.
|
||||
* But here, we are able to define the rounding mode at the compilation time.
|
||||
*/
|
||||
#define FLOAT_ROUND_NEAREST_EVEN 0
|
||||
#define FLOAT_ROUND_TO_ZERO 1
|
||||
#define FLOAT_ROUND_DOWN 2
|
||||
#define FLOAT_ROUND_UP 3
|
||||
#define FLOAT_ROUNDING_MODE FLOAT_ROUND_NEAREST_EVEN
|
@@ -53,6 +53,13 @@ ir_expression_operation_strings_h = custom_target(
|
||||
capture : true,
|
||||
)
|
||||
|
||||
float64_glsl_h = custom_target(
|
||||
'float64_glsl.h',
|
||||
input : ['xxd.py', 'float64.glsl'],
|
||||
output : 'float64_glsl.h',
|
||||
command : [prog_python, '@INPUT@', '@OUTPUT@', '-n', 'float64_source'],
|
||||
)
|
||||
|
||||
files_libglsl = files(
|
||||
'ast.h',
|
||||
'ast_array_index.cpp',
|
||||
@@ -213,7 +220,8 @@ files_libglsl_standalone = files(
|
||||
libglsl = static_library(
|
||||
'glsl',
|
||||
[files_libglsl, glsl_parser, glsl_lexer_cpp, ir_expression_operation_h,
|
||||
ir_expression_operation_strings_h, ir_expression_operation_constant_h],
|
||||
ir_expression_operation_strings_h, ir_expression_operation_constant_h,
|
||||
float64_glsl_h],
|
||||
c_args : [c_vis_args, c_msvc_compat_args, no_override_init_args],
|
||||
cpp_args : [cpp_vis_args, cpp_msvc_compat_args],
|
||||
link_with : libglcpp,
|
||||
|
Reference in New Issue
Block a user