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linux/drivers/gpu/drm/tests/drm_format_helper_test.c
Maíra Canal a52a5451f4 kunit: Use KUNIT_EXPECT_MEMEQ macro 
Use KUNIT_EXPECT_MEMEQ to compare memory blocks in replacement of the
KUNIT_EXPECT_EQ macro. Therefor, the statement

    KUNIT_EXPECT_EQ(test, memcmp(foo, bar, size), 0);

is replaced by:

    KUNIT_EXPECT_MEMEQ(test, foo, bar, size);

Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Acked-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2022-10-27 02:40:14 -06:00

464 lines
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// SPDX-License-Identifier: GPL-2.0+
#include <kunit/test.h>
#include <drm/drm_device.h>
#include <drm/drm_file.h>
#include <drm/drm_format_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_mode.h>
#include <drm/drm_print.h>
#include <drm/drm_rect.h>
#include "../drm_crtc_internal.h"
#define TEST_BUF_SIZE 50
struct convert_to_gray8_result {
unsigned int dst_pitch;
const u8 expected[TEST_BUF_SIZE];
};
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_to_rgb888_result {
unsigned int dst_pitch;
const u8 expected[TEST_BUF_SIZE];
};
struct convert_to_xrgb2101010_result {
unsigned int dst_pitch;
const u32 expected[TEST_BUF_SIZE];
};
struct convert_xrgb8888_case {
const char *name;
unsigned int pitch;
struct drm_rect clip;
const u32 xrgb8888[TEST_BUF_SIZE];
struct convert_to_gray8_result gray8_result;
struct convert_to_rgb332_result rgb332_result;
struct convert_to_rgb565_result rgb565_result;
struct convert_to_rgb888_result rgb888_result;
struct convert_to_xrgb2101010_result xrgb2101010_result;
};
static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {
{
.name = "single_pixel_source_buffer",
.pitch = 1 * 4,
.clip = DRM_RECT_INIT(0, 0, 1, 1),
.xrgb8888 = { 0x01FF0000 },
.gray8_result = {
.dst_pitch = 0,
.expected = { 0x4C },
},
.rgb332_result = {
.dst_pitch = 0,
.expected = { 0xE0 },
},
.rgb565_result = {
.dst_pitch = 0,
.expected = { 0xF800 },
.expected_swab = { 0x00F8 },
},
.rgb888_result = {
.dst_pitch = 0,
.expected = { 0x00, 0x00, 0xFF },
},
.xrgb2101010_result = {
.dst_pitch = 0,
.expected = { 0x3FF00000 },
},
},
{
.name = "single_pixel_clip_rectangle",
.pitch = 2 * 4,
.clip = DRM_RECT_INIT(1, 1, 1, 1),
.xrgb8888 = {
0x00000000, 0x00000000,
0x00000000, 0x10FF0000,
},
.gray8_result = {
.dst_pitch = 0,
.expected = { 0x4C },
},
.rgb332_result = {
.dst_pitch = 0,
.expected = { 0xE0 },
},
.rgb565_result = {
.dst_pitch = 0,
.expected = { 0xF800 },
.expected_swab = { 0x00F8 },
},
.rgb888_result = {
.dst_pitch = 0,
.expected = { 0x00, 0x00, 0xFF },
},
.xrgb2101010_result = {
.dst_pitch = 0,
.expected = { 0x3FF00000 },
},
},
{
/* Well known colors: White, black, red, green, blue, magenta,
* yellow and cyan. Different values for the X in XRGB8888 to
* make sure it is ignored. Partial clip area.
*/
.name = "well_known_colors",
.pitch = 4 * 4,
.clip = DRM_RECT_INIT(1, 1, 2, 4),
.xrgb8888 = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x11FFFFFF, 0x22000000, 0x00000000,
0x00000000, 0x33FF0000, 0x4400FF00, 0x00000000,
0x00000000, 0x550000FF, 0x66FF00FF, 0x00000000,
0x00000000, 0x77FFFF00, 0x8800FFFF, 0x00000000,
},
.gray8_result = {
.dst_pitch = 0,
.expected = {
0xFF, 0x00,
0x4C, 0x99,
0x19, 0x66,
0xE5, 0xB2,
},
},
.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,
},
},
.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,
},
},
.xrgb2101010_result = {
.dst_pitch = 0,
.expected = {
0x3FFFFFFF, 0x00000000,
0x3FF00000, 0x000FFC00,
0x000003FF, 0x3FF003FF,
0x3FFFFC00, 0x000FFFFF,
},
},
},
{
/* Randomly picked colors. Full buffer within the clip area. */
.name = "destination_pitch",
.pitch = 3 * 4,
.clip = DRM_RECT_INIT(0, 0, 3, 3),
.xrgb8888 = {
0xA10E449C, 0xB1114D05, 0xC1A80303,
0xD16C7073, 0xA20E449C, 0xB2114D05,
0xC2A80303, 0xD26C7073, 0xA30E449C,
},
.gray8_result = {
.dst_pitch = 5,
.expected = {
0x3C, 0x33, 0x34, 0x00, 0x00,
0x6F, 0x3C, 0x33, 0x00, 0x00,
0x34, 0x6F, 0x3C, 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,
},
},
.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,
},
},
.xrgb2101010_result = {
.dst_pitch = 20,
.expected = {
0x03844672, 0x0444D414, 0x2A20300C, 0x00000000, 0x00000000,
0x1B1705CD, 0x03844672, 0x0444D414, 0x00000000, 0x00000000,
0x2A20300C, 0x1B1705CD, 0x03844672, 0x00000000, 0x00000000,
},
},
},
};
/*
* conversion_buf_size - Return the destination buffer size required to convert
* between formats.
* @dst_format: destination buffer pixel format (DRM_FORMAT_*)
* @dst_pitch: Number of bytes between two consecutive scanlines within dst
* @clip: Clip rectangle area to convert
*
* Returns:
* The size of the destination buffer or negative value on error.
*/
static size_t conversion_buf_size(u32 dst_format, unsigned int dst_pitch,
const struct drm_rect *clip)
{
const struct drm_format_info *dst_fi = drm_format_info(dst_format);
if (!dst_fi)
return -EINVAL;
if (!dst_pitch)
dst_pitch = drm_rect_width(clip) * dst_fi->cpp[0];
return dst_pitch * drm_rect_height(clip);
}
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(convert_xrgb8888, convert_xrgb8888_cases,
convert_xrgb8888_case_desc);
static void drm_test_fb_xrgb8888_to_gray8(struct kunit *test)
{
const struct convert_xrgb8888_case *params = test->param_value;
const struct convert_to_gray8_result *result = &params->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,
&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_gray8(&dst, &result->dst_pitch, &src, &fb, &params->clip);
KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
}
static void drm_test_fb_xrgb8888_to_rgb332(struct kunit *test)
{
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_MEMEQ(test, buf, result->expected, dst_size);
}
static void drm_test_fb_xrgb8888_to_rgb565(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;
__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_RGB565, 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_rgb565(&dst, &result->dst_pitch, &src, &fb, &params->clip, false);
KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
drm_fb_xrgb8888_to_rgb565(&dst, &result->dst_pitch, &src, &fb, &params->clip, true);
KUNIT_EXPECT_MEMEQ(test, buf, result->expected_swab, dst_size);
}
static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test)
{
const struct convert_xrgb8888_case *params = test->param_value;
const struct convert_to_rgb888_result *result = &params->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,
&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_rgb888(&dst, &result->dst_pitch, &src, &fb, &params->clip);
KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
}
static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test)
{
const struct convert_xrgb8888_case *params = test->param_value;
const struct convert_to_xrgb2101010_result *result = &params->xrgb2101010_result;
size_t dst_size;
__u32 *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_XRGB2101010,
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_xrgb2101010(&dst, &result->dst_pitch, &src, &fb, &params->clip);
buf = le32buf_to_cpu(test, buf, dst_size / sizeof(u32));
KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size);
}
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),
KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb565, convert_xrgb8888_gen_params),
KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb888, convert_xrgb8888_gen_params),
KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_xrgb2101010, convert_xrgb8888_gen_params),
{}
};
static struct kunit_suite drm_format_helper_test_suite = {
.name = "drm_format_helper_test",
.test_cases = drm_format_helper_test_cases,
};
kunit_test_suite(drm_format_helper_test_suite);
MODULE_DESCRIPTION("KUnit tests for the drm_format_helper APIs");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("José Expósito <jose.exposito89@gmail.com>");
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