[PATCH v2 3/7] drm/vkms: Add range and encoding properties to pixel_read function

Arthur Grillo
2024-01-10T17:44:27Z

Create range and encoding properties. This should be noop, as none of
the conversion functions need those properties.

Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
---
drivers/gpu/drm/vkms/vkms_drv.h | 3 ++-
drivers/gpu/drm/vkms/vkms_formats.c | 20 ++++++++++++++------
drivers/gpu/drm/vkms/vkms_plane.c | 9 +++++++++
3 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index c38590562e4b..51349a0c32d8 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -56,7 +56,8 @@ struct vkms_writeback_job {
struct vkms_plane_state {
struct drm_shadow_plane_state base;
struct vkms_frame_info *frame_info;
- void (*pixel_read)(u8 **src_buffer, struct pixel_argb_u16 *out_pixel);
+ void (*pixel_read)(u8 **src_buffer, struct pixel_argb_u16 *out_pixel,
+ enum drm_color_encoding enconding, enum drm_color_range range);
};

struct vkms_plane {
diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c
index 5566a7cd7bb4..0156372aa1ef 100644
--- a/drivers/gpu/drm/vkms/vkms_formats.c
+++ b/drivers/gpu/drm/vkms/vkms_formats.c
@@ -51,7 +51,8 @@ static int get_x_position(const struct vkms_frame_info *frame_info, int limit, i
return x;
}

-static void ARGB8888_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel)
+static void ARGB8888_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel,
+ enum drm_color_encoding encoding, enum drm_color_range range)
{
/*
* The 257 is the "conversion ratio". This number is obtained by the
@@ -65,7 +66,8 @@ static void ARGB8888_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pix
out_pixel->b = (u16)src_pixels[0][0] * 257;
}

-static void XRGB8888_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel)
+static void XRGB8888_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel,
+ enum drm_color_encoding encoding, enum drm_color_range range)
{
out_pixel->a = (u16)0xffff;
out_pixel->r = (u16)src_pixels[0][2] * 257;
@@ -73,7 +75,8 @@ static void XRGB8888_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pix
out_pixel->b = (u16)src_pixels[0][0] * 257;
}

-static void ARGB16161616_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel)
+static void ARGB16161616_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel,
+ enum drm_color_encoding encoding, enum drm_color_range range)
{
u16 *pixels = (u16 *)src_pixels[0];

@@ -83,7 +86,8 @@ static void ARGB16161616_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out
out_pixel->b = le16_to_cpu(pixels[0]);
}

-static void XRGB16161616_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel)
+static void XRGB16161616_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel,
+ enum drm_color_encoding encoding, enum drm_color_range range)
{
u16 *pixels = (u16 *)src_pixels[0];

@@ -93,7 +97,8 @@ static void XRGB16161616_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out
out_pixel->b = le16_to_cpu(pixels[0]);
}

-static void RGB565_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel)
+static void RGB565_to_argb_u16(u8 **src_pixels, struct pixel_argb_u16 *out_pixel,
+ enum drm_color_encoding encoding, enum drm_color_range range)
{
u16 *pixels = (u16 *)src_pixels[0];

@@ -132,6 +137,9 @@ void vkms_compose_row(struct line_buffer *stage_buffer, struct vkms_plane_state
int limit = min_t(size_t, drm_rect_width(&frame_info->dst), stage_buffer->n_pixels);
u8 *src_pixels[DRM_FORMAT_MAX_PLANES];

+ enum drm_color_encoding encoding = plane->base.base.color_encoding;
+ enum drm_color_range range = plane->base.base.color_range;
+
for (size_t i = 0; i < frame_format->num_planes; i++)
src_pixels[i] = get_packed_src_addr(frame_info, y, i);

@@ -146,7 +154,7 @@ void vkms_compose_row(struct line_buffer *stage_buffer, struct vkms_plane_state
}
}

- plane->pixel_read(src_pixels, &out_pixels[x_pos]);
+ plane->pixel_read(src_pixels, &out_pixels[x_pos], encoding, range);

for (size_t i = 0; i < frame_format->num_planes; i++)
src_pixels[i] += frame_format->cpp[i];
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index 8f2c6ea419a3..e87c80575b7d 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -212,5 +212,14 @@ struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev,
drm_plane_create_rotation_property(&plane->base, DRM_MODE_ROTATE_0,
DRM_MODE_ROTATE_MASK | DRM_MODE_REFLECT_MASK);

+ drm_plane_create_color_properties(&plane->base,
+ BIT(DRM_COLOR_YCBCR_BT601) |
+ BIT(DRM_COLOR_YCBCR_BT709) |
+ BIT(DRM_COLOR_YCBCR_BT2020),
+ BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
+ BIT(DRM_COLOR_YCBCR_FULL_RANGE),
+ DRM_COLOR_YCBCR_BT601,
+ DRM_COLOR_YCBCR_FULL_RANGE);
+
return plane;
}

--
2.43.0