shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 03:15:31 +09:00
Code Issues Packages Projects Releases Wiki Activity

drm/rockchip: vop2: Fix the pixel/yrgb_mst/uv_mst alignments of NV15/NV12 at splice mode

Browse Source 
The mst of yrgb/uv must start at a byte aligned address with a full
group of pixel.

For a pixel with NV15 format,  the y channel has 10 bits and uv channel
has 5 bits. So limit the alignment to 8 pixel(10 bytes for Y, and 5 bytes
for UV) to meet this requirement.

For a pixel with NV12 format, we should limit the alignment to 2 pixel.

Change-Id: I23eccca6d706d3da25d2deac29e5a862e4bf355d
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
This commit is contained in:
Andy Yan
2022-09-13 11:00:10 +08:00
committed by Tao Huang
parent 45b3d59d13
commit 247fa56c8d
1 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
View File

@@ -4344,6 +4344,8 @@ static void vop2_calc_drm_rect_for_splice(struct vop2_plane_state *vpstate,
int dst_w = drm_rect_width(dst);
int src_w = drm_rect_width(src) >> 16;
int left_src_w, left_dst_w, right_dst_w;
struct drm_plane_state *pstate = &vpstate->base;
struct drm_framebuffer *fb = pstate->fb;
left_dst_w = min_t(u16, half_hdisplay, dst->x2) - dst->x1;
if (left_dst_w < 0)
@@ -4354,6 +4356,17 @@ static void vop2_calc_drm_rect_for_splice(struct vop2_plane_state *vpstate,
left_src_w = src_w;
else
left_src_w = (left_dst_w * hscale) >> 16;
/*
* Make sure the yrgb/uv mst of right win are byte aligned
* with full pixel.
*/
if (right_dst_w) {
if (fb->format->format == DRM_FORMAT_NV15)
left_src_w &= ~0x7;
else if (fb->format->format == DRM_FORMAT_NV12)
left_src_w &= ~0x1;
}
left_src->x1 = src->x1;
left_src->x2 = src->x1 + (left_src_w << 16);
left_dst->x1 = dst->x1;
@@ -4361,6 +4374,9 @@ static void vop2_calc_drm_rect_for_splice(struct vop2_plane_state *vpstate,
right_src->x1 = left_src->x2;
right_src->x2 = src->x2;
right_dst->x1 = dst->x1 + left_dst_w - half_hdisplay;
if (right_dst->x1 < 0)
right_dst->x1 = 0;
right_dst->x2 = right_dst->x1 + right_dst_w;
left_src->y1 = src->y1;