On Tue, Aug 16, 2022 at 6:29 PM José Expósito <jose.exposito89@xxxxxxxxx> wrote: > > Extend the existing test cases to test the conversion from XRGB8888 to > RGB888. > > Signed-off-by: José Expósito <jose.exposito89@xxxxxxxxx> > --- On the whole, this looks good to me. I'd like to see these tests use KUNIT_EXPECT_MEMEQ(), but that might have to wait. One other nitpick below, but otherwise: Reviewed-by: David Gow <davidgow@xxxxxxxxxx> Cheers, -- David > .../gpu/drm/tests/drm_format_helper_test.c | 65 +++++++++++++++++++ > 1 file changed, 65 insertions(+) > > diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c > index 828487071796..08d08e7ab19a 100644 > --- a/drivers/gpu/drm/tests/drm_format_helper_test.c > +++ b/drivers/gpu/drm/tests/drm_format_helper_test.c > @@ -27,6 +27,11 @@ struct convert_to_rgb565_result { > const u16 expected_swab[TEST_BUF_SIZE]; > }; > > +struct convert_to_rgb888_result { > + unsigned int dst_pitch; > + const u8 expected[TEST_BUF_SIZE]; Could this maybe be 3*TEST_BUF_SIZE? That should match the other, existing formats, which have room for TEST_BUF_SIZE pixels worth of data, not TEST_BUF_SIZE bytes. > +}; > + > struct convert_xrgb8888_case { > const char *name; > unsigned int pitch; > @@ -34,6 +39,7 @@ struct convert_xrgb8888_case { > const u32 xrgb8888[TEST_BUF_SIZE]; > struct convert_to_rgb332_result rgb332_result; > struct convert_to_rgb565_result rgb565_result; > + struct convert_to_rgb888_result rgb888_result; > }; > > static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { > @@ -51,6 +57,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { > .expected = { 0xF800 }, > .expected_swab = { 0x00F8 }, > }, > + .rgb888_result = { > + .dst_pitch = 0, > + .expected = { 0x00, 0x00, 0xFF }, > + }, > }, > { > .name = "single_pixel_clip_rectangle", > @@ -69,6 +79,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { > .expected = { 0xF800 }, > .expected_swab = { 0x00F8 }, > }, > + .rgb888_result = { > + .dst_pitch = 0, > + .expected = { 0x00, 0x00, 0xFF }, > + }, > }, > { > /* Well known colors: White, black, red, green, blue, magenta, > @@ -109,6 +123,15 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { > 0xE0FF, 0xFF07, > }, > }, > + .rgb888_result = { > + .dst_pitch = 0, > + .expected = { > + 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, > + 0x00, 0x00, 0xFF, 0x00, 0xFF, 0x00, > + 0xFF, 0x00, 0x00, 0xFF, 0x00, 0xFF, > + 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, > + }, > + }, > }, > { > /* Randomly picked colors. Full buffer within the clip area. */ > @@ -141,6 +164,17 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { > 0x00A8, 0x8E6B, 0x330A, 0x0000, 0x0000, > }, > }, > + .rgb888_result = { > + .dst_pitch = 15, > + .expected = { > + 0x9C, 0x44, 0x0E, 0x05, 0x4D, 0x11, 0x03, 0x03, 0xA8, > + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, > + 0x73, 0x70, 0x6C, 0x9C, 0x44, 0x0E, 0x05, 0x4D, 0x11, > + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, > + 0x03, 0x03, 0xA8, 0x73, 0x70, 0x6C, 0x9C, 0x44, 0x0E, > + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, > + }, > + }, > }, > }; > > @@ -255,9 +289,40 @@ static void xrgb8888_to_rgb565_test(struct kunit *test) > KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected_swab, dst_size), 0); > } > > +static void xrgb8888_to_rgb888_test(struct kunit *test) > +{ > + const struct convert_xrgb8888_case *params = test->param_value; > + const struct convert_to_rgb888_result *result = ¶ms->rgb888_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_RGB888, 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_rgb888(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); > + KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); At some point, this should use KUNIT_EXPECT_MEMEQ() rather than KUNIT_EXPECT_EQ(..., memcmp(...), 0): https://lore.kernel.org/all/20220808125237.277126-1-mairacanal@xxxxxxxxxx/ Of course, since that's not upstream yet (and probably will go in via a different tree), it's fine to leave this as-is in this patch, and tidy it up after they're merged. > +} > + > 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), > {} > }; > > -- > 2.25.1 >
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