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author | marha <marha@users.sourceforge.net> | 2015-03-22 14:10:47 +0100 |
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committer | marha <marha@users.sourceforge.net> | 2015-03-22 14:10:47 +0100 |
commit | 3bc24b271f45f9f33484b8cf53b44f33f7e8a237 (patch) | |
tree | 193651a94adb3804e800747e993d07b92688e4d4 /mesalib/src/util/roundeven_test.c | |
parent | c646056120fe14e4c4ccf81bac5d78d61225a8e8 (diff) | |
parent | 82c8df11062f72a7d467e26cedbbd8b322ff7a70 (diff) | |
download | vcxsrv-3bc24b271f45f9f33484b8cf53b44f33f7e8a237.tar.gz vcxsrv-3bc24b271f45f9f33484b8cf53b44f33f7e8a237.tar.bz2 vcxsrv-3bc24b271f45f9f33484b8cf53b44f33f7e8a237.zip |
Merge remote-tracking branch 'origin/released'
Conflicts:
mesalib/src/mapi/glapi/glapi.h
mesalib/src/mapi/glapi/glapi_nop.c
mesalib/src/mesa/main/bufferobj.c
Diffstat (limited to 'mesalib/src/util/roundeven_test.c')
-rw-r--r-- | mesalib/src/util/roundeven_test.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/mesalib/src/util/roundeven_test.c b/mesalib/src/util/roundeven_test.c new file mode 100644 index 000000000..7526db1f3 --- /dev/null +++ b/mesalib/src/util/roundeven_test.c @@ -0,0 +1,140 @@ +/* + * Copyright © 2015 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <stdio.h> +#include <stdbool.h> +#include <string.h> +#include <math.h> + +#include "macros.h" +#include "rounding.h" + +int main(int argc, char *argv[]) +{ + const struct { + float input, expected; + } float_data[] = { + { 0.0, 0.0 }, + { nextafterf(0.5, 0.0), 0.0 }, + { 0.5, 0.0 }, + { nextafterf(0.5, 1.0), 1.0 }, + { 1.0, 1.0 }, + { nextafterf(1.5, 1.0), 1.0 }, + { 1.5, 2.0 }, + { nextafterf(1.5, 2.0), 2.0 }, + { 2.0, 2.0 }, + { nextafterf(2.5, 2.0), 2.0 }, + { 2.5, 2.0 }, + { nextafterf(2.5, 3.0), 3.0 }, + }; + + const struct { + double input, expected; + } double_data[] = { + { 0.0, 0.0 }, + { nextafter(0.5, 0.0), 0.0 }, + { 0.5, 0.0 }, + { nextafter(0.5, 1.0), 1.0 }, + { 1.0, 1.0 }, + { nextafter(1.5, 1.0), 1.0 }, + { 1.5, 2.0 }, + { nextafter(1.5, 2.0), 2.0 }, + { 2.0, 2.0 }, + { nextafter(2.5, 2.0), 2.0 }, + { 2.5, 2.0 }, + { nextafter(2.5, 3.0), 3.0 }, + }; + + bool failed = false; + int i; + + for (i = 0; i < ARRAY_SIZE(float_data); i++) { + float output = _mesa_roundevenf(float_data[i].input); + if (memcmp(&float_data[i].expected, &output, sizeof(float))) { + fprintf(stderr, "%d float: expected %f (%a) from " + "_mesa_roundevenf(%f (%a)) but got %f (%a)\n", + i, + float_data[i].expected, + float_data[i].expected, + float_data[i].input, + float_data[i].input, + output, + output); + failed = true; + } + } + + /* Test negated values */ + for (i = 0; i < ARRAY_SIZE(float_data); i++) { + float output = _mesa_roundevenf(-float_data[i].input); + float negated_expected = -float_data[i].expected; + if (memcmp(&negated_expected, &output, sizeof(float))) { + fprintf(stderr, "%d float: expected %f (%a) from " + "_mesa_roundevenf(%f (%a)) but got %f (%a)\n", + i, + negated_expected, + negated_expected, + -float_data[i].input, + -float_data[i].input, + output, + output); + failed = true; + } + } + + for (i = 0; i < ARRAY_SIZE(double_data); i++) { + double output = _mesa_roundeven(double_data[i].input); + if (memcmp(&double_data[i].expected, &output, sizeof(double))) { + fprintf(stderr, "%d double: expected %f (%a) from " + "_mesa_roundeven(%f (%a)) but got %f (%a)\n", + i, + double_data[i].expected, + double_data[i].expected, + double_data[i].input, + double_data[i].input, + output, + output); + failed = true; + } + } + + /* Test negated values */ + for (i = 0; i < ARRAY_SIZE(double_data); i++) { + double output = _mesa_roundeven(-double_data[i].input); + double negated_expected = -double_data[i].expected; + if (memcmp(&negated_expected, &output, sizeof(double))) { + fprintf(stderr, "%d double: expected %f (%a) from " + "_mesa_roundeven(%f (%a)) but got %f (%a)\n", + i, + negated_expected, + negated_expected, + -double_data[i].input, + -double_data[i].input, + output, + output); + failed = true; + } + } + + return failed; +} |