bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-24 01:25:49 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/vkms: Add kunit tests for linear and sRGB LUTs

Browse Source 
Two tests are added to VKMS LUT handling:
- linear
- inv_srgb

Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-18-alex.hung@amd.com
This commit is contained in:
Harry Wentland
2025-11-14 17:01:42 -07:00
committed by Simon Ser
parent 9b5c7e8b45
commit cb500b4c24
3 changed files with 55 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/gpu/drm/vkms/tests/vkms_color_test.c
View File

@@ -6,6 +6,7 @@
#include <drm/drm_mode.h>
#include "../vkms_composer.h"
#include "../vkms_drv.h"
#include "../vkms_luts.h"
#define TEST_LUT_SIZE 16
@@ -99,6 +100,19 @@ static void vkms_color_test_get_lut_index(struct kunit *test)
lut_index = get_lut_index(&test_linear_lut, test_linear_array[i].red);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(lut_index), i);
}
KUNIT_EXPECT_EQ(test, drm_fixp2int(get_lut_index(&srgb_eotf, 0x0)), 0x0);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(get_lut_index(&srgb_eotf, 0x0)), 0x0);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(get_lut_index(&srgb_eotf, 0x101)), 0x1);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(get_lut_index(&srgb_eotf, 0x202)), 0x2);
KUNIT_EXPECT_EQ(test, drm_fixp2int(get_lut_index(&srgb_inv_eotf, 0x0)), 0x0);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(get_lut_index(&srgb_inv_eotf, 0x0)), 0x0);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(get_lut_index(&srgb_inv_eotf, 0x101)), 0x1);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(get_lut_index(&srgb_inv_eotf, 0x202)), 0x2);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(get_lut_index(&srgb_eotf, 0xfefe)), 0xfe);
KUNIT_EXPECT_EQ(test, drm_fixp2int_ceil(get_lut_index(&srgb_eotf, 0xffff)), 0xff);
}
static void vkms_color_test_lerp(struct kunit *test)
@@ -112,9 +126,33 @@ static void vkms_color_test_lerp(struct kunit *test)
}
}
static void vkms_color_test_linear(struct kunit *test)
{
for (int i = 0; i < LUT_SIZE; i++) {
int linear = apply_lut_to_channel_value(&linear_eotf, i * 0x101, LUT_RED);
KUNIT_EXPECT_EQ(test, DIV_ROUND_CLOSEST(linear, 0x101), i);
}
}
static void vkms_color_srgb_inv_srgb(struct kunit *test)
{
u16 srgb, final;
for (int i = 0; i < LUT_SIZE; i++) {
srgb = apply_lut_to_channel_value(&srgb_eotf, i * 0x101, LUT_RED);
final = apply_lut_to_channel_value(&srgb_inv_eotf, srgb, LUT_RED);
KUNIT_EXPECT_GE(test, final / 0x101, i - 1);
KUNIT_EXPECT_LE(test, final / 0x101, i + 1);
}
}
static struct kunit_case vkms_color_test_cases[] = {
KUNIT_CASE(vkms_color_test_get_lut_index),
KUNIT_CASE(vkms_color_test_lerp),
KUNIT_CASE(vkms_color_test_linear),
KUNIT_CASE(vkms_color_srgb_inv_srgb),
{}
};