From ca82414470eea1d81f8fe4169ee19b89245989dc Mon Sep 17 00:00:00 2001 From: Dom Cobley Date: Wed, 26 Jan 2022 15:58:13 +0000 Subject: [PATCH] drm: Add chroma siting properties Signed-off-by: Dom Cobley --- drivers/gpu/drm/drm_atomic_state_helper.c | 14 +++++++++ drivers/gpu/drm/drm_atomic_uapi.c | 8 +++++ drivers/gpu/drm/drm_color_mgmt.c | 36 +++++++++++++++++++++++ include/drm/drm_color_mgmt.h | 3 ++ include/drm/drm_plane.h | 36 +++++++++++++++++++++++ 5 files changed, 97 insertions(+) --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -267,6 +267,20 @@ void __drm_atomic_helper_plane_state_res plane_state->color_range = val; } + if (plane->chroma_siting_h_property) { + if (!drm_object_property_get_default_value(&plane->base, + plane->chroma_siting_h_property, + &val)) + plane_state->chroma_siting_h = val; + } + + if (plane->chroma_siting_v_property) { + if (!drm_object_property_get_default_value(&plane->base, + plane->chroma_siting_v_property, + &val)) + plane_state->chroma_siting_v = val; + } + if (plane->zpos_property) { if (!drm_object_property_get_default_value(&plane->base, plane->zpos_property, --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -562,6 +562,10 @@ static int drm_atomic_plane_set_property state->color_encoding = val; } else if (property == plane->color_range_property) { state->color_range = val; + } else if (property == plane->chroma_siting_h_property) { + state->chroma_siting_h = val; + } else if (property == plane->chroma_siting_v_property) { + state->chroma_siting_v = val; } else if (property == config->prop_fb_damage_clips) { ret = drm_atomic_replace_property_blob_from_id(dev, &state->fb_damage_clips, @@ -628,6 +632,10 @@ drm_atomic_plane_get_property(struct drm *val = state->color_encoding; } else if (property == plane->color_range_property) { *val = state->color_range; + } else if (property == plane->chroma_siting_h_property) { + *val = state->chroma_siting_h; + } else if (property == plane->chroma_siting_v_property) { + *val = state->chroma_siting_v; } else if (property == config->prop_fb_damage_clips) { *val = (state->fb_damage_clips) ? state->fb_damage_clips->base.id : 0; --- a/drivers/gpu/drm/drm_color_mgmt.c +++ b/drivers/gpu/drm/drm_color_mgmt.c @@ -591,6 +591,42 @@ int drm_plane_create_color_properties(st EXPORT_SYMBOL(drm_plane_create_color_properties); /** + * drm_plane_create_chroma_siting_properties - chroma siting related plane properties + * @plane: plane object + * + * Create and attach plane specific CHROMA_SITING + * properties to @plane. + */ +int drm_plane_create_chroma_siting_properties(struct drm_plane *plane, + int32_t default_chroma_siting_h, + int32_t default_chroma_siting_v) +{ + struct drm_device *dev = plane->dev; + struct drm_property *prop; + + prop = drm_property_create_range(dev, 0, "CHROMA_SITING_H", + 0, 1<<16); + if (!prop) + return -ENOMEM; + plane->chroma_siting_h_property = prop; + drm_object_attach_property(&plane->base, prop, default_chroma_siting_h); + + prop = drm_property_create_range(dev, 0, "CHROMA_SITING_V", + 0, 1<<16); + if (!prop) + return -ENOMEM; + plane->chroma_siting_v_property = prop; + drm_object_attach_property(&plane->base, prop, default_chroma_siting_v); + + if (plane->state) { + plane->state->chroma_siting_h = default_chroma_siting_h; + plane->state->chroma_siting_v = default_chroma_siting_v; + } + return 0; +} +EXPORT_SYMBOL(drm_plane_create_chroma_siting_properties); + +/** * drm_color_lut_check - check validity of lookup table * @lut: property blob containing LUT to check * @tests: bitmask of tests to run --- a/include/drm/drm_color_mgmt.h +++ b/include/drm/drm_color_mgmt.h @@ -93,6 +93,9 @@ int drm_plane_create_color_properties(st enum drm_color_encoding default_encoding, enum drm_color_range default_range); +int drm_plane_create_chroma_siting_properties(struct drm_plane *plane, + int32_t default_chroma_siting_h, int32_t default_chroma_siting_v); + /** * enum drm_color_lut_tests - hw-specific LUT tests to perform * --- a/include/drm/drm_plane.h +++ b/include/drm/drm_plane.h @@ -178,6 +178,24 @@ struct drm_plane_state { enum drm_color_range color_range; /** + * @chroma_siting_h: + * + * Location of chroma samples horizontally compared to luma + * 0 means chroma is sited with left luma + * 0x8000 is interstitial. 0x10000 is sited with right luma + */ + int32_t chroma_siting_h; + + /** + * @chroma_siting_v: + * + * Location of chroma samples vertically compared to luma + * 0 means chroma is sited with top luma + * 0x8000 is interstitial. 0x10000 is sited with bottom luma + */ + int32_t chroma_siting_v; + + /** * @fb_damage_clips: * * Blob representing damage (area in plane framebuffer that changed @@ -748,6 +766,24 @@ struct drm_plane { * scaling. */ struct drm_property *scaling_filter_property; + + /** + * @chroma_siting_h_property: + * + * Optional "CHROMA_SITING_H" property for specifying + * chroma siting for YUV formats. + * See drm_plane_create_chroma_siting_properties(). + */ + struct drm_property *chroma_siting_h_property; + + /** + * @chroma_siting_v_property: + * + * Optional "CHROMA_SITING_V" property for specifying + * chroma siting for YUV formats. + * See drm_plane_create_chroma_siting_properties(). + */ + struct drm_property *chroma_siting_v_property; }; #define obj_to_plane(x) container_of(x, struct drm_plane, base)