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/*
* 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 <glib.h>
#include "backends/native/meta-kms-utils.h"
#include "backends/native/meta-kms-update.h"
typedef struct {
drmModeModeInfo drm_mode;
float expected_refresh_rate;
} RefreshRateTestCase;
static const RefreshRateTestCase refresh_rate_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
meta_test_kms_refresh_rate (void)
{
size_t index;
for (index = 0; index < G_N_ELEMENTS (refresh_rate_test_cases); index++)
{
const RefreshRateTestCase *test_case = refresh_rate_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);
}
}
typedef struct
{
drmModeModeInfo drm_mode;
int64_t expected_vblank_duration_us;
} VblankDurationTestCase;
static const VblankDurationTestCase vblank_duration_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_vblank_duration_us = 668,
},
/* "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_vblank_duration_us = 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_vblank_duration_us = 0,
},
/* "cvt 640 480" with DBLSCAN */
{
.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 |
DRM_MODE_FLAG_DBLSCAN,
},
.expected_vblank_duration_us = 1335,
},
};
static void
meta_test_kms_vblank_duration (void)
{
size_t index;
for (index = 0; index < G_N_ELEMENTS (vblank_duration_test_cases); index++)
{
const VblankDurationTestCase *test_case = vblank_duration_test_cases + index;
int64_t vblank_duration_us;
vblank_duration_us =
meta_calculate_drm_mode_vblank_duration_us (&test_case->drm_mode);
g_assert_cmpint (vblank_duration_us,
==,
test_case->expected_vblank_duration_us);
}
}
static void
meta_test_kms_update_fixed16 (void)
{
g_assert_cmpint (meta_fixed_16_from_int (12345), ==, 809041920);
g_assert_cmpint (meta_fixed_16_to_int (809041920), ==, 12345);
g_assert_cmpint (meta_fixed_16_from_int (-12345), ==, -809041920);
g_assert_cmpint (meta_fixed_16_to_int (-809041920), ==, -12345);
}
static void
init_kms_utils_tests (void)
{
g_test_add_func ("/backends/native/kms/refresh-rate",
meta_test_kms_refresh_rate);
g_test_add_func ("/backends/native/kms/vblank-duration",
meta_test_kms_vblank_duration);
g_test_add_func ("/backends/native/kms/update/fixed16",
meta_test_kms_update_fixed16);
}
int
main (int argc,
char **argv)
{
g_test_init (&argc, &argv, NULL);
init_kms_utils_tests ();
return g_test_run ();
}
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