8f9e91ad03
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
58 lines
2.1 KiB
Diff
58 lines
2.1 KiB
Diff
From 814cdc1ed13409bf71d569d153d5817c1c30285c Mon Sep 17 00:00:00 2001
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From: Dom Cobley <popcornmix@gmail.com>
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Date: Fri, 21 Jun 2024 16:20:29 +0100
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Subject: [PATCH] drm/vc4: plane: Add support for YUV444 formats
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Support displaying DRM_FORMAT_YUV444 and DRM_FORMAT_YVU444 formats.
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Tested with kmstest and kodi. e.g.
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kmstest -r 1920x1080@60 -f 400x300-YU24
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Note: without the shift of width, only half the chroma is fetched,
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resulting in correct left half of image and corrupt colours on right half.
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The increase in width shouldn't affect fetching of Y data,
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as the hardware will clamp at dest width.
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Signed-off-by: Dom Cobley <popcornmix@gmail.com>
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Reviewed-by: Maxime Ripard <mripard@kernel.org>
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Link: https://patchwork.freedesktop.org/patch/msgid/20240621152055.4180873-6-dave.stevenson@raspberrypi.com
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/gpu/drm/vc4/vc4_plane.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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--- a/drivers/gpu/drm/vc4/vc4_plane.c
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+++ b/drivers/gpu/drm/vc4/vc4_plane.c
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@@ -110,6 +110,18 @@ static const struct hvs_format {
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.pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCRCB,
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},
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{
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+ .drm = DRM_FORMAT_YUV444,
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+ .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE,
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+ .pixel_order = HVS_PIXEL_ORDER_XYCBCR,
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+ .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCBCR,
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+ },
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+ {
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+ .drm = DRM_FORMAT_YVU444,
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+ .hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_3PLANE,
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+ .pixel_order = HVS_PIXEL_ORDER_XYCRCB,
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+ .pixel_order_hvs5 = HVS_PIXEL_ORDER_XYCRCB,
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+ },
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+ {
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.drm = DRM_FORMAT_YUV420,
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.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV420_3PLANE,
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.pixel_order = HVS_PIXEL_ORDER_XYCBCR,
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@@ -1117,6 +1129,12 @@ static int vc4_plane_mode_set(struct drm
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vc4_state->src_y + vc4_state->src_h[0] < (state->fb->height << 16))
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height++;
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+ /* For YUV444 the hardware wants double the width, otherwise it doesn't
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+ * fetch full width of chroma
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+ */
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+ if (format->drm == DRM_FORMAT_YUV444 || format->drm == DRM_FORMAT_YVU444)
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+ width <<= 1;
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+
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/* Don't waste cycles mixing with plane alpha if the set alpha
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* is opaque or there is no per-pixel alpha information.
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* In any case we use the alpha property value as the fixed alpha.
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