@@ -654,6 +654,14 @@ static void argb_u16_to_RGB565(u8 *out_pixel, const struct pixel_argb_u16 *in_pi
*pixel = cpu_to_le16(r << 11 | g << 5 | b);
}
+static void argb_u16_to_XRGB2101010(u8 *out_pixel, const struct pixel_argb_u16 *in_pixel)
+{
+ out_pixel[0] = (u8)(in_pixel->b & 0xFF);
+ out_pixel[1] = (u8)((in_pixel->b >> 8) & 0x03) | (u8)((in_pixel->g << 2) & 0xFC);
+ out_pixel[2] = (u8)((in_pixel->g >> 6) & 0x0F) | (u8)((in_pixel->r << 4) & 0xF0);
+ out_pixel[3] = (u8)((in_pixel->r >> 4) & 0x3F);
+}
+
/**
* WRITE_LINE() - Generic generator for write_line functions
*
@@ -700,6 +708,8 @@ WRITE_LINE(XRGB16161616_write_line, argb_u16_to_XRGB16161616)
WRITE_LINE(RGB565_write_line, argb_u16_to_RGB565)
+WRITE_LINE(XRGB2101010_write_line, argb_u16_to_XRGB2101010)
+
/**
* get_pixel_read_function() - Retrieve the correct read_line function for a specific
* format. The returned pointer is NULL for unsupported pixel formats. The caller must ensure that
@@ -977,6 +987,8 @@ pixel_write_line_t get_pixel_write_line_function(u32 format)
return &XRGB16161616_write_line;
case DRM_FORMAT_RGB565:
return &RGB565_write_line;
+ case DRM_FORMAT_XRGB2101010:
+ return &XRGB2101010_write_line;
default:
/*
* This is a bug in vkms_writeback_atomic_check. All the supported
@@ -19,7 +19,8 @@ static const u32 vkms_wb_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_XRGB16161616,
DRM_FORMAT_ARGB16161616,
- DRM_FORMAT_RGB565
+ DRM_FORMAT_RGB565,
+ DRM_FORMAT_XRGB2101010,
};
static const struct drm_connector_funcs vkms_wb_connector_funcs = {
Thanks to the WRITE_LINE macro, adding the format XRGB210101010 is trivial. Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com> --- drivers/gpu/drm/vkms/vkms_formats.c | 12 ++++++++++++ drivers/gpu/drm/vkms/vkms_writeback.c | 3 ++- 2 files changed, 14 insertions(+), 1 deletion(-)