bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 23:03:57 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/tests: Add test cases for drm_rect_rotate()

Browse Source 
Insert a parameterized test for the drm_rect_rotate() to ensure
correctness and prevent future regressions.

All possible rotation modes are covered by the test.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230418230146.461129-5-arthurgrillo@riseup.net
This commit is contained in:
Arthur Grillo
2023-04-18 20:01:45 -03:00
committed by Maíra Canal
parent 881e2a9cc1
commit b5d88ec0ee
1 changed files with 72 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

72
drivers/gpu/drm/tests/drm_rect_test.c
View File

@@ -8,6 +8,7 @@
#include <kunit/test.h>
#include <drm/drm_rect.h>
#include <drm/drm_mode.h>
#include <linux/string_helpers.h>
#include <linux/errno.h>
@@ -425,6 +426,76 @@ static void drm_test_rect_calc_vscale(struct kunit *test)
KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor);
}
struct drm_rect_rotate_case {
const char *name;
unsigned int rotation;
struct drm_rect rect;
int width, height;
struct drm_rect expected;
};
static const struct drm_rect_rotate_case drm_rect_rotate_cases[] = {
{
.name = "reflect-x",
.rotation = DRM_MODE_REFLECT_X,
.rect = DRM_RECT_INIT(0, 0, 5, 5),
.width = 5, .height = 10,
.expected = DRM_RECT_INIT(0, 0, 5, 5),
},
{
.name = "reflect-y",
.rotation = DRM_MODE_REFLECT_Y,
.rect = DRM_RECT_INIT(2, 0, 5, 5),
.width = 5, .height = 10,
.expected = DRM_RECT_INIT(2, 5, 5, 5),
},
{
.name = "rotate-0",
.rotation = DRM_MODE_ROTATE_0,
.rect = DRM_RECT_INIT(0, 2, 5, 5),
.width = 5, .height = 10,
.expected = DRM_RECT_INIT(0, 2, 5, 5),
},
{
.name = "rotate-90",
.rotation = DRM_MODE_ROTATE_90,
.rect = DRM_RECT_INIT(0, 0, 5, 10),
.width = 5, .height = 10,
.expected = DRM_RECT_INIT(0, 0, 10, 5),
},
{
.name = "rotate-180",
.rotation = DRM_MODE_ROTATE_180,
.rect = DRM_RECT_INIT(11, 3, 5, 10),
.width = 5, .height = 10,
.expected = DRM_RECT_INIT(-11, -3, 5, 10),
},
{
.name = "rotate-270",
.rotation = DRM_MODE_ROTATE_270,
.rect = DRM_RECT_INIT(6, 3, 5, 10),
.width = 5, .height = 10,
.expected = DRM_RECT_INIT(-3, 6, 10, 5),
},
};
static void drm_rect_rotate_case_desc(const struct drm_rect_rotate_case *t, char *desc)
{
strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE);
}
KUNIT_ARRAY_PARAM(drm_rect_rotate, drm_rect_rotate_cases, drm_rect_rotate_case_desc);
static void drm_test_rect_rotate(struct kunit *test)
{
const struct drm_rect_rotate_case *params = test->param_value;
struct drm_rect r = params->rect;
drm_rect_rotate(&r, params->width, params->height, params->rotation);
drm_rect_compare(test, &r, &params->expected);
}
static struct kunit_case drm_rect_tests[] = {
KUNIT_CASE(drm_test_rect_clip_scaled_div_by_zero),
KUNIT_CASE(drm_test_rect_clip_scaled_not_clipped),
@@ -433,6 +504,7 @@ static struct kunit_case drm_rect_tests[] = {
KUNIT_CASE_PARAM(drm_test_rect_intersect, drm_rect_intersect_gen_params),
KUNIT_CASE_PARAM(drm_test_rect_calc_hscale, drm_rect_scale_gen_params),
KUNIT_CASE_PARAM(drm_test_rect_calc_vscale, drm_rect_scale_gen_params),
KUNIT_CASE_PARAM(drm_test_rect_rotate, drm_rect_rotate_gen_params),
{ }
};