drm: Add properties to control YCbCr to RGB conversion
Subsystems (2)
v4 cover drm: Add properties to control YCbCr to RGB conversion
Changes since v3 RFC version:
- Add: "drm: Add const to name field declaration in struct drm_prop_enum_list"
- Fix typos found by Eric Engestrom
- Restructure kernel doc
- Add consts to name sting tables
- Loop variables from unsigned to signed int
- Use len variable to index temporary enum_list
- Initialize state variables if present
- Reorder bitmask test
- Remove drm_property_destroy() call from drm_plane_cleanup()
- Do not initialize the first enum to zero
- Remove struct drm_prop_enum_list declaration from drm_color_mgmt.h
The previous version can be found here:
https://lists.freedesktop.org/archives/dri-devel/2017-May/141766.html
Jyri Sarha (2):
drm: Add const to name field declaration in struct drm_prop_enum_list
drm: Add optinal COLOR_ENCODING and COLOR_RANGE properties to
drm_plane
drivers/gpu/drm/drm_atomic.c | 8 ++++ drivers/gpu/drm/drm_color_mgmt.c | 92 ++++++++++++++++++++++++++++++++++++++++ include/drm/drm_color_mgmt.h | 19 +++++++++ include/drm/drm_plane.h | 8 ++++ include/drm/drm_property.h | 2 +- 5 files changed, 128 insertions(+), 1 deletion(-)
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1.9.1 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
PATCH v4 1/2 drm: Add const to name field declaration in struct drm_prop_enum_list
There is no reason why the name field should not be const, but several why it should. The struct should only be used by drm_property_create_enum() and there the name-field from the struct is passed to drm_property_add_enum(), which takes a const char * as a parameter.
--- include/drm/drm_property.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
include/drm/drm_property.h +1 -1
@@ -214,7 +214,7 @@ struct drm_property_blob {struct drm_prop_enum_list {int type; -char *name; +const char *name; };#define obj_to_property (x) container_of(x, struct drm_property, base)
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1.9.1 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
PATCH v4 2/2 drm: Add optinal COLOR_ENCODING and COLOR_RANGE properties to drm_plane
In reply to Jyri SarhaAdd a standard optional properties to support different non RGB color encodings in DRM planes. COLOR_ENCODING select the supported non RGB color encoding, for instance ITU-R BT.709 YCbCr. COLOR_RANGE selects the value ranges within the selected color encoding. The properties are stored to drm_plane object to allow different set of supported encoding for different planes on the device.
--- drivers/gpu/drm/drm_atomic.c | 8 ++++ drivers/gpu/drm/drm_color_mgmt.c | 92 ++++++++++++++++++++++++++++++++++++++++ include/drm/drm_color_mgmt.h | 19 +++++++++ include/drm/drm_plane.h | 8 ++++ 4 files changed, 127 insertions(+)
drivers/gpu/drm/drm_atomic.c +8 -0
@@ -774,6 +774,10 @@ int drm_atomic_plane_set_property(struct drm_plane *plane, state->rotation = val; }else if (property == plane->zpos_property) { state->zpos = val; + }else if (property == plane->color_encoding_property) { + state->color_encoding = val; + }else if (property == plane->color_range_property) { + state->color_range = val; }else if (plane->funcs->atomic_set_property) {return plane->funcs->atomic_set_property (plane, state, property, val);
@@ -834,6 +838,10 @@ int drm_atomic_plane_set_property(struct drm_plane *plane, *val = state->rotation; }else if (property == plane->zpos_property) { *val = state->zpos; + }else if (property == plane->color_encoding_property) { + *val = state->color_encoding; + }else if (property == plane->color_range_property) { + *val = state->color_range; }else if (plane->funcs->atomic_get_property) {return plane->funcs->atomic_get_property (plane, state, property, val); }else {
drivers/gpu/drm/drm_color_mgmt.c +92 -0
101 lines not on this page · raw message
include/drm/drm_color_mgmt.h +19 -0
@@ -26,6 +26,7 @@#include <linux/ctype.h> struct drm_crtc ; +struct drm_plane ;uint32_t drm_color_lut_extract (uint32_t user_input,uint32_t bit_precision);
@@ -37,4 +38,22 @@ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,int drm_mode_crtc_set_gamma_size (struct drm_crtc *crtc,int gamma_size); +enum drm_color_encoding { +DRM_COLOR_YCBCR_BT601 , +DRM_COLOR_YCBCR_BT709 , +DRM_COLOR_YCBCR_BT2020 , +DRM_COLOR_ENCODING_MAX , +}; + +enum drm_color_range { +DRM_COLOR_YCBCR_LIMITED_RANGE , +DRM_COLOR_YCBCR_FULL_RANGE , +DRM_COLOR_RANGE_MAX , +}; + +int drm_plane_create_color_properties (struct drm_plane *plane, +u32 supported_encodings, +u32 supported_ranges, +enum drm_color_encoding default_encoding, +enum drm_color_range default_range);#endif
include/drm/drm_plane.h +8 -0
@@ -26,6 +26,7 @@#include <linux/list.h> #include <linux/ctype.h> #include <drm/drm_mode_object.h> +#include <drm/drm_color_mgmt.h> struct drm_crtc ;struct drm_printer ;
@@ -112,6 +113,10 @@ struct drm_plane_state {unsigned int zpos;unsigned int normalized_zpos; +/* Color encoding for non RGB formats */ +enum drm_color_encoding color_encoding; +enum drm_color_range color_range; +/* Clipped coordinates */ struct drm_rect src, dst;
@@ -523,6 +528,9 @@ struct drm_plane {struct drm_property *zpos_property;struct drm_property *rotation_property; + +struct drm_property *color_encoding_property; +struct drm_property *color_range_property; };#define obj_to_plane (x) container_of(x, struct drm_plane, base)
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