drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_gray8()
Extend the existing test cases to test the conversion from XRGB8888 to grayscale. Tested-by: Maíra Canal <mairacanal@riseup.net> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Maxime Ripard <maxime@cerno.tech> Signed-off-by: José Expósito <jose.exposito89@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220926080837.65734-4-jose.exposito89@gmail.com
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@ -16,6 +16,11 @@
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#define TEST_BUF_SIZE 50
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struct convert_to_gray8_result {
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unsigned int dst_pitch;
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const u8 expected[TEST_BUF_SIZE];
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};
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struct convert_to_rgb332_result {
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unsigned int dst_pitch;
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const u8 expected[TEST_BUF_SIZE];
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@ -42,6 +47,7 @@ struct convert_xrgb8888_case {
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unsigned int pitch;
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struct drm_rect clip;
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const u32 xrgb8888[TEST_BUF_SIZE];
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struct convert_to_gray8_result gray8_result;
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struct convert_to_rgb332_result rgb332_result;
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struct convert_to_rgb565_result rgb565_result;
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struct convert_to_rgb888_result rgb888_result;
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@ -54,6 +60,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
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.pitch = 1 * 4,
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.clip = DRM_RECT_INIT(0, 0, 1, 1),
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.xrgb8888 = { 0x01FF0000 },
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.gray8_result = {
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.dst_pitch = 0,
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.expected = { 0x4C },
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},
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.rgb332_result = {
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.dst_pitch = 0,
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.expected = { 0xE0 },
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@ -80,6 +90,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
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0x00000000, 0x00000000,
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0x00000000, 0x10FF0000,
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},
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.gray8_result = {
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.dst_pitch = 0,
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.expected = { 0x4C },
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},
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.rgb332_result = {
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.dst_pitch = 0,
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.expected = { 0xE0 },
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@ -113,6 +127,15 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
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0x00000000, 0x550000FF, 0x66FF00FF, 0x00000000,
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0x00000000, 0x77FFFF00, 0x8800FFFF, 0x00000000,
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},
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.gray8_result = {
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.dst_pitch = 0,
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.expected = {
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0xFF, 0x00,
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0x4C, 0x99,
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0x19, 0x66,
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0xE5, 0xB2,
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},
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},
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.rgb332_result = {
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.dst_pitch = 0,
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.expected = {
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@ -166,6 +189,14 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
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0xD16C7073, 0xA20E449C, 0xB2114D05,
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0xC2A80303, 0xD26C7073, 0xA30E449C,
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},
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.gray8_result = {
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.dst_pitch = 5,
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.expected = {
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0x3C, 0x33, 0x34, 0x00, 0x00,
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0x6F, 0x3C, 0x33, 0x00, 0x00,
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0x34, 0x6F, 0x3C, 0x00, 0x00,
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},
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},
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.rgb332_result = {
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.dst_pitch = 5,
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.expected = {
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@ -257,6 +288,36 @@ static void convert_xrgb8888_case_desc(struct convert_xrgb8888_case *t,
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KUNIT_ARRAY_PARAM(convert_xrgb8888, convert_xrgb8888_cases,
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convert_xrgb8888_case_desc);
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static void drm_test_fb_xrgb8888_to_gray8(struct kunit *test)
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{
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const struct convert_xrgb8888_case *params = test->param_value;
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const struct convert_to_gray8_result *result = ¶ms->gray8_result;
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size_t dst_size;
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__u8 *buf = NULL;
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__u32 *xrgb8888 = NULL;
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struct iosys_map dst, src;
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struct drm_framebuffer fb = {
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.format = drm_format_info(DRM_FORMAT_XRGB8888),
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.pitches = { params->pitch, 0, 0 },
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};
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dst_size = conversion_buf_size(DRM_FORMAT_R8, result->dst_pitch,
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¶ms->clip);
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KUNIT_ASSERT_GT(test, dst_size, 0);
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buf = kunit_kzalloc(test, dst_size, GFP_KERNEL);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
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iosys_map_set_vaddr(&dst, buf);
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xrgb8888 = le32buf_to_cpu(test, params->xrgb8888, TEST_BUF_SIZE);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888);
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iosys_map_set_vaddr(&src, xrgb8888);
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drm_fb_xrgb8888_to_gray8(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip);
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KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
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}
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static void drm_test_fb_xrgb8888_to_rgb332(struct kunit *test)
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{
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const struct convert_xrgb8888_case *params = test->param_value;
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@ -382,6 +443,7 @@ static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test)
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}
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static struct kunit_case drm_format_helper_test_cases[] = {
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KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_gray8, convert_xrgb8888_gen_params),
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KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb332, convert_xrgb8888_gen_params),
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KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb565, convert_xrgb8888_gen_params),
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KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb888, convert_xrgb8888_gen_params),
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