Unverified Commit 00000922 authored by Arthur Grillo's avatar Arthur Grillo Committed by Javier Martinez Canillas
Browse files

drm/format-helper: Add Kunit tests for drm_fb_xrgb8888_to_mono() 



Extend the existing test cases to test the conversion from XRGB8888 to
monochromatic.

Signed-off-by: default avatarArthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Signed-off-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230311125141.564801-2-arthurgrillo@riseup.net
parent b24343ea

drivers/gpu/drm/tests/drm_format_helper_test.c

+62 −0
Original line number Diff line number Diff line
@@ -67,6 +67,11 @@ struct convert_to_argb2101010_result { 
	const u32 expected[TEST_BUF_SIZE];

};



struct convert_to_mono_result {

	unsigned int dst_pitch;

	const u8 expected[TEST_BUF_SIZE];

};



struct convert_xrgb8888_case {

	const char *name;

	unsigned int pitch;
@@ -82,6 +87,7 @@ struct convert_xrgb8888_case { 
	struct convert_to_argb8888_result argb8888_result;

	struct convert_to_xrgb2101010_result xrgb2101010_result;

	struct convert_to_argb2101010_result argb2101010_result;

	struct convert_to_mono_result mono_result;

};



static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
@@ -131,6 +137,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 
			.dst_pitch = 0,

			.expected = { 0xFFF00000 },

		},

		.mono_result = {

			.dst_pitch = 0,

			.expected = { 0b0 },

		},

	},

	{

		.name = "single_pixel_clip_rectangle",
@@ -181,6 +191,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 
			.dst_pitch = 0,

			.expected = { 0xFFF00000 },

		},

		.mono_result = {

			.dst_pitch = 0,

			.expected = { 0b0 },

		},

	},

	{

		/* Well known colors: White, black, red, green, blue, magenta,
@@ -293,6 +307,15 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 
				0xFFFFFC00, 0xC00FFFFF,

			},

		},

		.mono_result = {

			.dst_pitch = 0,

			.expected = {

				0b01,

				0b10,

				0b00,

				0b11,

			},

		},

	},

	{

		/* Randomly picked colors. Full buffer within the clip area. */
@@ -392,6 +415,14 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 
				0xEA20300C, 0xDB1705CD, 0xC3844672, 0x00000000, 0x00000000,

			},

		},

		.mono_result = {

			.dst_pitch = 2,

			.expected = {

				0b000, 0b000,

				0b000, 0b000,

				0b000, 0b000,

			},

		},

	},

};
@@ -792,6 +823,36 @@ static void drm_test_fb_xrgb8888_to_argb2101010(struct kunit *test) 
	KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);

}



static void drm_test_fb_xrgb8888_to_mono(struct kunit *test)

{

	const struct convert_xrgb8888_case *params = test->param_value;

	const struct convert_to_mono_result *result = &params->mono_result;

	size_t dst_size;

	u8 *buf = NULL;

	__le32 *xrgb8888 = NULL;

	struct iosys_map dst, src;



	struct drm_framebuffer fb = {

		.format = drm_format_info(DRM_FORMAT_XRGB8888),

		.pitches = { params->pitch, 0, 0 },

	};



	dst_size = conversion_buf_size(DRM_FORMAT_C1, result->dst_pitch, &params->clip);



	KUNIT_ASSERT_GT(test, dst_size, 0);



	buf = kunit_kzalloc(test, dst_size, GFP_KERNEL);

	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);

	iosys_map_set_vaddr(&dst, buf);



	xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE);

	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888);

	iosys_map_set_vaddr(&src, xrgb8888);



	drm_fb_xrgb8888_to_mono(&dst, &result->dst_pitch, &src, &fb, &params->clip);

	KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);

}



static struct kunit_case drm_format_helper_test_cases[] = {

	KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_gray8, convert_xrgb8888_gen_params),

	KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb332, convert_xrgb8888_gen_params),
@@ -803,6 +864,7 @@ static struct kunit_case drm_format_helper_test_cases[] = { 
	KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_argb8888, convert_xrgb8888_gen_params),

	KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_xrgb2101010, convert_xrgb8888_gen_params),

	KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_argb2101010, convert_xrgb8888_gen_params),

	KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_mono, convert_xrgb8888_gen_params),

	{}

};