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| author | Simon Ser <contact@emersion.fr> | 2023-05-05 13:36:00 +0200 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2023-05-24 08:58:59 +0000 |
| commit | 16dea12dae0bf3207741049c5a6dc6d4076507c0 (patch) | |
| tree | f0b74428589e3c0ded31eac326b88280c51e17fd /render | |
| parent | a682fa6c21b9d80e8700fb049e61c8dce2b65fb8 (diff) | |
render/vulkan: add more YCbCr formats
The Vulkan spec states:
> For the purposes of range expansion and Y′CBCR model conversion,
> the R and B components contain color difference (chroma) values
> and the G component contains luma.
The equations below that sentence also help understand the mapping.
Diffstat (limited to 'render')
| -rw-r--r-- | render/vulkan/pixel_format.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/render/vulkan/pixel_format.c b/render/vulkan/pixel_format.c index 01d69db3..e633c5c1 100644 --- a/render/vulkan/pixel_format.c +++ b/render/vulkan/pixel_format.c @@ -145,11 +145,46 @@ static const struct wlr_vk_format formats[] = { #endif // YCbCr formats + // R -> V, G -> Y, B -> U + // 420 -> 2x2 subsampled, 422 -> 2x1 subsampled, 444 -> non-subsampled + { + .drm = DRM_FORMAT_UYVY, + .vk = VK_FORMAT_B8G8R8G8_422_UNORM, + .is_ycbcr = true, + }, + { + .drm = DRM_FORMAT_YUYV, + .vk = VK_FORMAT_G8B8G8R8_422_UNORM, + .is_ycbcr = true, + }, { .drm = DRM_FORMAT_NV12, .vk = VK_FORMAT_G8_B8R8_2PLANE_420_UNORM, .is_ycbcr = true, }, + { + .drm = DRM_FORMAT_NV16, + .vk = VK_FORMAT_G8_B8R8_2PLANE_422_UNORM, + .is_ycbcr = true, + }, + { + .drm = DRM_FORMAT_YUV420, + .vk = VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM, + .is_ycbcr = true, + }, + { + .drm = DRM_FORMAT_YUV422, + .vk = VK_FORMAT_G8_B8_R8_3PLANE_422_UNORM, + .is_ycbcr = true, + }, + { + .drm = DRM_FORMAT_YUV444, + .vk = VK_FORMAT_G8_B8_R8_3PLANE_444_UNORM, + .is_ycbcr = true, + }, + // TODO: add 10, 12 and 16 bit formats + // TODO: add DRM_FORMAT_NV24/VK_FORMAT_G8_B8R8_2PLANE_444_UNORM (requires + // Vulkan 1.3 or VK_EXT_ycbcr_2plane_444_formats) }; const struct wlr_vk_format *vulkan_get_format_list(size_t *len) { |