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tests: add XYUV8888 to yuv-test

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This will hit the XYUV shader variant in GL-renderer that was not
covered in the test suite before.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
This commit is contained in:
Pekka Paalanen 2021-02-05 16:30:22 +02:00
parent 30104bd89a
commit f6a8aa15f5
1 changed files with 65 additions and 0 deletions
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65
tests/yuv-buffer-test.c
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@ -353,6 +353,70 @@ yuyv_create_buffer(struct client *client,
return buf;
}
/*
* Packed YCbCr
*
* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian
* full resolution chroma
*/
static struct yuv_buffer *
xyuv8888_create_buffer(struct client *client,
uint32_t drm_format,
pixman_image_t *rgb_image)
{
struct yuv_buffer *buf;
size_t bytes;
int width;
int height;
int x, y;
void *rgb_pixels;
int rgb_stride_bytes;
uint32_t *rgb_row;
uint32_t *yuv_base;
uint32_t *yuv_row;
uint8_t cr;
uint8_t cb;
uint8_t y0;
assert(drm_format == DRM_FORMAT_XYUV8888);
width = pixman_image_get_width(rgb_image);
height = pixman_image_get_height(rgb_image);
rgb_pixels = pixman_image_get_data(rgb_image);
rgb_stride_bytes = pixman_image_get_stride(rgb_image);
/* Full size, 32 bits per pixel */
bytes = width * height * sizeof(uint32_t);
buf = yuv_buffer_create(client, bytes, width, height, width * sizeof(uint32_t), drm_format);
yuv_base = buf->data;
for (y = 0; y < height; y++) {
rgb_row = rgb_pixels + (y / 2 * 2) * rgb_stride_bytes;
yuv_row = yuv_base + y * width;
for (x = 0; x < width; x++) {
/*
* 2x2 sub-sample the source image to get the same
* result as the other YUV variants, so we can use the
* same reference image for checking.
*/
x8r8g8b8_to_ycbcr8_bt601(*(rgb_row + x / 2 * 2), &y0, &cb, &cr);
/*
* The unused byte is intentionally set to "garbage"
* to catch any accidental use of it in the compositor.
*/
*(yuv_row + x) =
((uint32_t)x << 24) |
((uint32_t)y0 << 16) |
((uint32_t)cb << 8) |
((uint32_t)cr << 0);
}
}
return buf;
}
static void
show_window_with_yuv(struct client *client, struct yuv_buffer *buf)
{
@ -374,6 +438,7 @@ static const struct yuv_case yuv_cases[] = {
{ FMT(YUV420), yuv420_create_buffer },
{ FMT(NV12), nv12_create_buffer },
{ FMT(YUYV), yuyv_create_buffer },
{ FMT(XYUV8888), xyuv8888_create_buffer },
#undef FMT
};