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backend/native: Add tests for refresh rate calculation

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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1737>
This commit is contained in:
Akihiko Odaki 2021-02-26 20:16:23 +09:00 committed by Marge Bot
parent a41c30338f
commit a6df6796dd
5 changed files with 175 additions and 0 deletions
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3
src/backends/native/meta-kms-utils.h
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@ -24,11 +24,14 @@
#include <stdint.h>
#include <xf86drmMode.h>
#include "core/util-private.h"
typedef struct _MetaDrmFormatBuf
{
char s[5];
} MetaDrmFormatBuf;
META_EXPORT_TEST
float meta_calculate_drm_mode_refresh_rate (const drmModeModeInfo *drm_mode);
const char * meta_drm_format_to_string (MetaDrmFormatBuf *tmp,

145
src/tests/kms-utils-unit-tests.c Normal file
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@ -0,0 +1,145 @@
/*
* Copyright (C) 2021 Akihiko Odaki <akihiko.odaki@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "tests/kms-utils-unit-tests.h"
#include "tests/test-utils.h"
#include "backends/native/meta-kms-utils.h"
typedef struct {
drmModeModeInfo drm_mode;
float expected_refresh_rate;
} ModeInfoTestCase;
static const ModeInfoTestCase test_cases[] = {
/* "cvt 640 480" */
{
.drm_mode = {
.clock = 23975,
.hdisplay = 640,
.hsync_start = 664,
.hsync_end = 720,
.htotal = 800,
.vdisplay = 480,
.vsync_start = 483,
.vsync_end = 487,
.vtotal = 500,
.vscan = 0,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
},
.expected_refresh_rate = 59.9375,
},
/* "cvt 640 480" with htotal 0 */
{
.drm_mode = {
.clock = 23975,
.hdisplay = 640,
.hsync_start = 664,
.hsync_end = 720,
.htotal = 0,
.vdisplay = 480,
.vsync_start = 483,
.vsync_end = 487,
.vtotal = 500,
.vscan = 0,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
},
.expected_refresh_rate = 0.0,
},
/* "cvt 640 480" with vtotal 0 */
{
.drm_mode = {
.clock = 23975,
.hdisplay = 640,
.hsync_start = 664,
.hsync_end = 720,
.htotal = 800,
.vdisplay = 480,
.vsync_start = 483,
.vsync_end = 487,
.vtotal = 0,
.vscan = 0,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
},
.expected_refresh_rate = 0.0,
},
/* "cvt 320 240" with doubled clock and vscan 2 */
{
.drm_mode = {
.clock = 12062,
.hdisplay = 320,
.hsync_start = 336,
.hsync_end = 360,
.htotal = 400,
.vdisplay = 240,
.vsync_start = 243,
.vsync_end = 247,
.vtotal = 252,
.vscan = 2,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
},
.expected_refresh_rate = 59.8313,
},
/* "cvt 15360 8640 180" */
{
.drm_mode = {
.clock = 37793603,
.hdisplay = 15360,
.hsync_start = 16880,
.hsync_end = 18624,
.htotal = 21888,
.vdisplay = 8640,
.vsync_start = 8643,
.vsync_end = 8648,
.vtotal = 9593,
.vscan = 0,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
},
.expected_refresh_rate = 179.9939,
},
};
static void
refresh_rate (void)
{
size_t index;
for (index = 0; index < G_N_ELEMENTS(test_cases); index++)
{
const ModeInfoTestCase *test_case = test_cases + index;
float refresh_rate;
refresh_rate =
meta_calculate_drm_mode_refresh_rate (&test_case->drm_mode);
g_assert_cmpfloat_with_epsilon (refresh_rate,
test_case->expected_refresh_rate,
0.0001);
}
}
void
init_kms_utils_tests (void)
{
g_test_add_func ("/kms-utils/refresh-rate", refresh_rate);
}

23
src/tests/kms-utils-unit-tests.h Normal file
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@ -0,0 +1,23 @@
/*
* Copyright (C) 2021 Akihiko Odaki <akihiko.odaki@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef KMS_UTILS_UNIT_TESTS_H
#define KMS_UTILS_UNIT_TESTS_H
void init_kms_utils_tests (void);
#endif /* KMS_UTILS_UNIT_TESTS_H */

2
src/tests/meson.build
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@ -76,6 +76,8 @@ unit_tests = executable('mutter-test-unit-tests',
'unit-tests.c',
'boxes-tests.c',
'boxes-tests.h',
'kms-utils-unit-tests.c',
'kms-utils-unit-tests.h',
'meta-backend-test.c',
'meta-backend-test.h',
'meta-gpu-test.c',

2
src/tests/unit-tests.c
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@ -29,6 +29,7 @@
#include "core/boxes-private.h"
#include "core/main-private.h"
#include "tests/boxes-tests.h"
#include "tests/kms-utils-unit-tests.h"
#include "tests/meta-backend-test.h"
#include "tests/monitor-config-migration-unit-tests.h"
#include "tests/monitor-unit-tests.h"
@ -250,6 +251,7 @@ init_tests (int argc, char **argv)
g_test_add_func ("/core/boxes/adjacent-to", meta_test_adjacent_to);
init_kms_utils_tests ();
init_monitor_store_tests ();
init_monitor_config_migration_tests ();
init_monitor_tests ();