Extend the existing test cases to test the conversion from XRGB8888 to grayscale.
Tested-by: Maíra Canal <mairaca...@riseup.net> Reviewed-by: David Gow <david...@google.com> Signed-off-by: José Expósito <jose.exposit...@gmail.com> --- .../gpu/drm/tests/drm_format_helper_test.c | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c index d8536db4de1e..2f548aa51a30 100644 --- a/drivers/gpu/drm/tests/drm_format_helper_test.c +++ b/drivers/gpu/drm/tests/drm_format_helper_test.c @@ -37,6 +37,11 @@ struct convert_to_xrgb2101010_result { const u32 expected[TEST_BUF_SIZE]; }; +struct convert_to_gray8_result { + unsigned int dst_pitch; + const u8 expected[TEST_BUF_SIZE]; +}; + struct convert_xrgb8888_case { const char *name; unsigned int pitch; @@ -46,6 +51,7 @@ struct convert_xrgb8888_case { struct convert_to_rgb565_result rgb565_result; struct convert_to_rgb888_result rgb888_result; struct convert_to_xrgb2101010_result xrgb2101010_result; + struct convert_to_gray8_result gray8_result; }; static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { @@ -71,6 +77,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { .dst_pitch = 0, .expected = { 0x3FF00000 }, }, + .gray8_result = { + .dst_pitch = 0, + .expected = { 0x4C }, + }, }, { .name = "single_pixel_clip_rectangle", @@ -97,6 +107,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { .dst_pitch = 0, .expected = { 0x3FF00000 }, }, + .gray8_result = { + .dst_pitch = 0, + .expected = { 0x4C }, + }, }, { /* Well known colors: White, black, red, green, blue, magenta, @@ -155,6 +169,15 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x3FFFFC00, 0x000FFFFF, }, }, + .gray8_result = { + .dst_pitch = 0, + .expected = { + 0xFF, 0x00, + 0x4C, 0x99, + 0x19, 0x66, + 0xE5, 0xB2, + }, + }, }, { /* Randomly picked colors. Full buffer within the clip area. */ @@ -206,6 +229,14 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x2A20300C, 0x1B1705CD, 0x03844672, 0x00000000, 0x00000000, }, }, + .gray8_result = { + .dst_pitch = 5, + .expected = { + 0x3C, 0x33, 0x34, 0x00, 0x00, + 0x6F, 0x3C, 0x33, 0x00, 0x00, + 0x34, 0x6F, 0x3C, 0x00, 0x00, + }, + }, }, }; @@ -381,11 +412,42 @@ static void xrgb8888_to_xrgb2101010_test(struct kunit *test) KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); } +static void xrgb8888_to_gray8_test(struct kunit *test) +{ + const struct convert_xrgb8888_case *params = test->param_value; + const struct convert_to_gray8_result *result = ¶ms->gray8_result; + size_t dst_size; + __u8 *buf = NULL; + __u32 *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_R8, result->dst_pitch, + ¶ms->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 = le32buf_to_cpu(test, params->xrgb8888, TEST_BUF_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); + iosys_map_set_vaddr(&src, xrgb8888); + + drm_fb_xrgb8888_to_gray8(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); +} + static struct kunit_case drm_format_helper_test_cases[] = { KUNIT_CASE_PARAM(xrgb8888_to_rgb332_test, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(xrgb8888_to_rgb565_test, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(xrgb8888_to_rgb888_test, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(xrgb8888_to_xrgb2101010_test, convert_xrgb8888_gen_params), + KUNIT_CASE_PARAM(xrgb8888_to_gray8_test, convert_xrgb8888_gen_params), {} }; -- 2.25.1