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drm/format-helper: Add conversion from XRGB8888 to ARGB2101010

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Add dedicated helper to convert from XRGB8888 to ARGB2101010. Sets
all alpha bits to make pixels fully opaque.

v2:
	* set correct format in struct drm_framebuffer (Javier)
	* use cpubuf_to_le32()
	* type fixes

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-9-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann
2023-01-02 12:29:22 +01:00
parent 175073d694
commit 56119bfb39
3 changed files with 122 additions and 2 deletions
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63
drivers/gpu/drm/tests/drm_format_helper_test.c
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@@ -47,6 +47,11 @@ struct convert_to_xrgb2101010_result {
const u32 expected[TEST_BUF_SIZE];
};
struct convert_to_argb2101010_result {
unsigned int dst_pitch;
const u32 expected[TEST_BUF_SIZE];
};
struct convert_xrgb8888_case {
const char *name;
unsigned int pitch;
@@ -58,6 +63,7 @@ struct convert_xrgb8888_case {
struct convert_to_rgb888_result rgb888_result;
struct convert_to_argb8888_result argb8888_result;
struct convert_to_xrgb2101010_result xrgb2101010_result;
struct convert_to_argb2101010_result argb2101010_result;
};
static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
@@ -91,6 +97,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
.dst_pitch = 0,
.expected = { 0x3FF00000 },
},
.argb2101010_result = {
.dst_pitch = 0,
.expected = { 0xFFF00000 },
},
},
{
.name = "single_pixel_clip_rectangle",
@@ -125,6 +135,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
.dst_pitch = 0,
.expected = { 0x3FF00000 },
},
.argb2101010_result = {
.dst_pitch = 0,
.expected = { 0xFFF00000 },
},
},
{
/* Well known colors: White, black, red, green, blue, magenta,
@@ -201,6 +215,15 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
0x3FFFFC00, 0x000FFFFF,
},
},
.argb2101010_result = {
.dst_pitch = 0,
.expected = {
0xFFFFFFFF, 0xC0000000,
0xFFF00000, 0xC00FFC00,
0xC00003FF, 0xFFF003FF,
0xFFFFFC00, 0xC00FFFFF,
},
},
},
{
/* Randomly picked colors. Full buffer within the clip area. */
@@ -268,6 +291,14 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
0x2A20300C, 0x1B1705CD, 0x03844672, 0x00000000, 0x00000000,
},
},
.argb2101010_result = {
.dst_pitch = 20,
.expected = {
0xC3844672, 0xC444D414, 0xEA20300C, 0x00000000, 0x00000000,
0xDB1705CD, 0xC3844672, 0xC444D414, 0x00000000, 0x00000000,
0xEA20300C, 0xDB1705CD, 0xC3844672, 0x00000000, 0x00000000,
},
},
},
};
@@ -541,6 +572,37 @@ static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test)
KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
}
static void drm_test_fb_xrgb8888_to_argb2101010(struct kunit *test)
{
const struct convert_xrgb8888_case *params = test->param_value;
const struct convert_to_argb2101010_result *result = &params->argb2101010_result;
size_t dst_size;
u32 *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_ARGB2101010,
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_argb2101010(&dst, &result->dst_pitch, &src, &fb, &params->clip);
buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32));
KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0);
}
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),
@@ -548,6 +610,7 @@ static struct kunit_case drm_format_helper_test_cases[] = {
KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb888, convert_xrgb8888_gen_params),
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),
{}
};