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path: root/drivers/gpu/drm/tests/drm_format_helper_test.c
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Diffstat (limited to 'drivers/gpu/drm/tests/drm_format_helper_test.c')
-rw-r--r--drivers/gpu/drm/tests/drm_format_helper_test.c178
1 files changed, 145 insertions, 33 deletions
diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c
index 98583bf56044..828487071796 100644
--- a/drivers/gpu/drm/tests/drm_format_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_format_helper_test.c
@@ -16,34 +16,59 @@
#define TEST_BUF_SIZE 50
-struct xrgb8888_to_rgb332_case {
+struct convert_to_rgb332_result {
+ unsigned int dst_pitch;
+ const u8 expected[TEST_BUF_SIZE];
+};
+
+struct convert_to_rgb565_result {
+ unsigned int dst_pitch;
+ const u16 expected[TEST_BUF_SIZE];
+ const u16 expected_swab[TEST_BUF_SIZE];
+};
+
+struct convert_xrgb8888_case {
const char *name;
unsigned int pitch;
- unsigned int dst_pitch;
struct drm_rect clip;
const u32 xrgb8888[TEST_BUF_SIZE];
- const u8 expected[4 * TEST_BUF_SIZE];
+ struct convert_to_rgb332_result rgb332_result;
+ struct convert_to_rgb565_result rgb565_result;
};
-static struct xrgb8888_to_rgb332_case xrgb8888_to_rgb332_cases[] = {
+static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
{
.name = "single_pixel_source_buffer",
.pitch = 1 * 4,
- .dst_pitch = 0,
.clip = DRM_RECT_INIT(0, 0, 1, 1),
.xrgb8888 = { 0x01FF0000 },
- .expected = { 0xE0 },
+ .rgb332_result = {
+ .dst_pitch = 0,
+ .expected = { 0xE0 },
+ },
+ .rgb565_result = {
+ .dst_pitch = 0,
+ .expected = { 0xF800 },
+ .expected_swab = { 0x00F8 },
+ },
},
{
.name = "single_pixel_clip_rectangle",
.pitch = 2 * 4,
- .dst_pitch = 0,
.clip = DRM_RECT_INIT(1, 1, 1, 1),
.xrgb8888 = {
0x00000000, 0x00000000,
0x00000000, 0x10FF0000,
},
- .expected = { 0xE0 },
+ .rgb332_result = {
+ .dst_pitch = 0,
+ .expected = { 0xE0 },
+ },
+ .rgb565_result = {
+ .dst_pitch = 0,
+ .expected = { 0xF800 },
+ .expected_swab = { 0x00F8 },
+ },
},
{
/* Well known colors: White, black, red, green, blue, magenta,
@@ -52,7 +77,6 @@ static struct xrgb8888_to_rgb332_case xrgb8888_to_rgb332_cases[] = {
*/
.name = "well_known_colors",
.pitch = 4 * 4,
- .dst_pitch = 0,
.clip = DRM_RECT_INIT(1, 1, 2, 4),
.xrgb8888 = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -61,28 +85,61 @@ static struct xrgb8888_to_rgb332_case xrgb8888_to_rgb332_cases[] = {
0x00000000, 0x550000FF, 0x66FF00FF, 0x00000000,
0x00000000, 0x77FFFF00, 0x8800FFFF, 0x00000000,
},
- .expected = {
- 0xFF, 0x00,
- 0xE0, 0x1C,
- 0x03, 0xE3,
- 0xFC, 0x1F,
+ .rgb332_result = {
+ .dst_pitch = 0,
+ .expected = {
+ 0xFF, 0x00,
+ 0xE0, 0x1C,
+ 0x03, 0xE3,
+ 0xFC, 0x1F,
+ },
+ },
+ .rgb565_result = {
+ .dst_pitch = 0,
+ .expected = {
+ 0xFFFF, 0x0000,
+ 0xF800, 0x07E0,
+ 0x001F, 0xF81F,
+ 0xFFE0, 0x07FF,
+ },
+ .expected_swab = {
+ 0xFFFF, 0x0000,
+ 0x00F8, 0xE007,
+ 0x1F00, 0x1FF8,
+ 0xE0FF, 0xFF07,
+ },
},
},
{
/* Randomly picked colors. Full buffer within the clip area. */
.name = "destination_pitch",
.pitch = 3 * 4,
- .dst_pitch = 5,
.clip = DRM_RECT_INIT(0, 0, 3, 3),
.xrgb8888 = {
0xA10E449C, 0xB1114D05, 0xC1A80303,
0xD16C7073, 0xA20E449C, 0xB2114D05,
0xC2A80303, 0xD26C7073, 0xA30E449C,
},
- .expected = {
- 0x0A, 0x08, 0xA0, 0x00, 0x00,
- 0x6D, 0x0A, 0x08, 0x00, 0x00,
- 0xA0, 0x6D, 0x0A, 0x00, 0x00,
+ .rgb332_result = {
+ .dst_pitch = 5,
+ .expected = {
+ 0x0A, 0x08, 0xA0, 0x00, 0x00,
+ 0x6D, 0x0A, 0x08, 0x00, 0x00,
+ 0xA0, 0x6D, 0x0A, 0x00, 0x00,
+ },
+ },
+ .rgb565_result = {
+ .dst_pitch = 10,
+ .expected = {
+ 0x0A33, 0x1260, 0xA800, 0x0000, 0x0000,
+ 0x6B8E, 0x0A33, 0x1260, 0x0000, 0x0000,
+ 0xA800, 0x6B8E, 0x0A33, 0x0000, 0x0000,
+ },
+ .expected_swab = {
+ 0x330A, 0x6012, 0x00A8, 0x0000, 0x0000,
+ 0x8E6B, 0x330A, 0x6012, 0x0000, 0x0000,
+ 0x00A8, 0x8E6B, 0x330A, 0x0000, 0x0000,
+ },
},
},
};
@@ -111,41 +168,96 @@ static size_t conversion_buf_size(u32 dst_format, unsigned int dst_pitch,
return dst_pitch * drm_rect_height(clip);
}
-static void xrgb8888_to_rgb332_case_desc(struct xrgb8888_to_rgb332_case *t,
- char *desc)
+static u32 *le32buf_to_cpu(struct kunit *test, const u32 *buf, size_t buf_size)
+{
+ u32 *dst = NULL;
+ int n;
+
+ dst = kunit_kzalloc(test, sizeof(*dst) * buf_size, GFP_KERNEL);
+ if (!dst)
+ return NULL;
+
+ for (n = 0; n < buf_size; n++)
+ dst[n] = le32_to_cpu((__force __le32)buf[n]);
+
+ return dst;
+}
+
+static void convert_xrgb8888_case_desc(struct convert_xrgb8888_case *t,
+ char *desc)
{
strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE);
}
-KUNIT_ARRAY_PARAM(xrgb8888_to_rgb332, xrgb8888_to_rgb332_cases,
- xrgb8888_to_rgb332_case_desc);
+KUNIT_ARRAY_PARAM(convert_xrgb8888, convert_xrgb8888_cases,
+ convert_xrgb8888_case_desc);
static void xrgb8888_to_rgb332_test(struct kunit *test)
{
- const struct xrgb8888_to_rgb332_case *params = test->param_value;
+ const struct convert_xrgb8888_case *params = test->param_value;
+ const struct convert_to_rgb332_result *result = &params->rgb332_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_RGB332, 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 = 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_rgb332(&dst, &result->dst_pitch, &src, &fb, &params->clip);
+ KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
+}
+
+static void xrgb8888_to_rgb565_test(struct kunit *test)
+{
+ const struct convert_xrgb8888_case *params = test->param_value;
+ const struct convert_to_rgb565_result *result = &params->rgb565_result;
size_t dst_size;
- __u8 *dst = NULL;
+ __u16 *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_RGB332, params->dst_pitch,
+ dst_size = conversion_buf_size(DRM_FORMAT_RGB565, result->dst_pitch,
&params->clip);
KUNIT_ASSERT_GT(test, dst_size, 0);
- dst = kunit_kzalloc(test, dst_size, GFP_KERNEL);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dst);
+ 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_rgb565(&dst, &result->dst_pitch, &src, &fb, &params->clip, false);
+ KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
- drm_fb_xrgb8888_to_rgb332(dst, params->dst_pitch, params->xrgb8888,
- &fb, &params->clip);
- KUNIT_EXPECT_EQ(test, memcmp(dst, params->expected, dst_size), 0);
+ drm_fb_xrgb8888_to_rgb565(&dst, &result->dst_pitch, &src, &fb, &params->clip, true);
+ KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected_swab, dst_size), 0);
}
static struct kunit_case drm_format_helper_test_cases[] = {
- KUNIT_CASE_PARAM(xrgb8888_to_rgb332_test,
- xrgb8888_to_rgb332_gen_params),
+ KUNIT_CASE_PARAM(xrgb8888_to_rgb332_test, convert_xrgb8888_gen_params),
+ KUNIT_CASE_PARAM(xrgb8888_to_rgb565_test, convert_xrgb8888_gen_params),
{}
};
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-31 14:34:04 +0000