github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-24 15:12:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/vkms: Add support for ABGR8888 pixel format

Browse Source 
Add support for pixel format ABGR8888, which is the default format
on Android devices. This will allow us to use VKMS as the default
display driver in Android Emulator (Cuttlefish) and increase VKMS
adoption.

Signed-off-by: Paz Zcharya <pazz@chromium.org>
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250129142238.562999-1-pazz@google.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
This commit is contained in:
Paz Zcharya 2025-01-29 14:20:58 +00:00 committed by Louis Chauvet
parent 51d262a96b
commit 8cca475b80
No known key found for this signature in database
GPG Key ID: 20AD2EC65B102CE2
3 changed files with 34 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/gpu/drm/vkms/vkms_formats.c
View File

@ -253,6 +253,26 @@ static void XRGB8888_read_line(const struct vkms_plane_state *plane, int x_start
}
}
static void ABGR8888_read_line(const struct vkms_plane_state *plane, int x_start, int y_start,
enum pixel_read_direction direction, int count,
struct pixel_argb_u16 out_pixel[])
{
struct pixel_argb_u16 *end = out_pixel + count;
u8 *src_pixels;
packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels);
int step = get_block_step_bytes(plane->frame_info->fb, direction, 0);
while (out_pixel < end) {
u8 *px = (u8 *)src_pixels;
/* Switch blue and red pixels. */
*out_pixel = argb_u16_from_u8888(px[3], px[0], px[1], px[2]);
out_pixel += 1;
src_pixels += step;
}
}
static void ARGB16161616_read_line(const struct vkms_plane_state *plane, int x_start,
int y_start, enum pixel_read_direction direction, int count,
struct pixel_argb_u16 out_pixel[])
@ -344,6 +364,14 @@ static void argb_u16_to_XRGB8888(u8 *out_pixel, const struct pixel_argb_u16 *in_
out_pixel[0] = DIV_ROUND_CLOSEST(in_pixel->b, 257);
}
static void argb_u16_to_ABGR8888(u8 *out_pixel, const struct pixel_argb_u16 *in_pixel)
{
out_pixel[3] = DIV_ROUND_CLOSEST(in_pixel->a, 257);
out_pixel[2] = DIV_ROUND_CLOSEST(in_pixel->b, 257);
out_pixel[1] = DIV_ROUND_CLOSEST(in_pixel->g, 257);
out_pixel[0] = DIV_ROUND_CLOSEST(in_pixel->r, 257);
}
static void argb_u16_to_ARGB16161616(u8 *out_pixel, const struct pixel_argb_u16 *in_pixel)
{
__le16 *pixel = (__le16 *)out_pixel;
@ -420,6 +448,8 @@ pixel_read_line_t get_pixel_read_line_function(u32 format)
return &ARGB8888_read_line;
case DRM_FORMAT_XRGB8888:
return &XRGB8888_read_line;
case DRM_FORMAT_ABGR8888:
return &ABGR8888_read_line;
case DRM_FORMAT_ARGB16161616:
return &ARGB16161616_read_line;
case DRM_FORMAT_XRGB16161616:
@ -453,6 +483,8 @@ pixel_write_t get_pixel_write_function(u32 format)
return &argb_u16_to_ARGB8888;
case DRM_FORMAT_XRGB8888:
return &argb_u16_to_XRGB8888;
case DRM_FORMAT_ABGR8888:
return &argb_u16_to_ABGR8888;
case DRM_FORMAT_ARGB16161616:
return &argb_u16_to_ARGB16161616;
case DRM_FORMAT_XRGB16161616:

1
drivers/gpu/drm/vkms/vkms_plane.c
View File

@ -15,6 +15,7 @@
static const u32 vkms_formats[] = {
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ABGR8888,
DRM_FORMAT_XRGB16161616,
DRM_FORMAT_ARGB16161616,
DRM_FORMAT_RGB565

1
drivers/gpu/drm/vkms/vkms_writeback.c
View File

@ -17,6 +17,7 @@
static const u32 vkms_wb_formats[] = {
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ABGR8888,
DRM_FORMAT_XRGB16161616,
DRM_FORMAT_ARGB16161616,
DRM_FORMAT_RGB565