diff mbox

[v5,2/2] drm: Add optinal COLOR_ENCODING and COLOR_RANGE properties to drm_plane

Message ID 637df9de3a9368ec41ceafc8efa08246395a997e.1496161066.git.jsarha@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jyri Sarha May 30, 2017, 4:29 p.m. UTC
Add 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.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
---
 drivers/gpu/drm/drm_atomic.c     |  8 ++++
 drivers/gpu/drm/drm_color_mgmt.c | 93 ++++++++++++++++++++++++++++++++++++++++
 include/drm/drm_color_mgmt.h     | 19 ++++++++
 include/drm/drm_plane.h          |  8 ++++
 4 files changed, 128 insertions(+)

Comments

kernel test robot May 30, 2017, 9:23 p.m. UTC | #1
Hi Jyri,

[auto build test WARNING on drm/drm-next]
[also build test WARNING on next-20170530]
[cannot apply to v4.12-rc3]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Jyri-Sarha/drm-Add-const-to-name-field-declaration-in-struct-drm_prop_enum_list/20170531-010551
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

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>> include/drm/drm_plane.h:133: warning: No description found for parameter 'color_encoding'
>> include/drm/drm_plane.h:133: warning: No description found for parameter 'color_range'
>> include/drm/drm_plane.h:535: warning: No description found for parameter 'color_encoding_property'
>> include/drm/drm_plane.h:535: warning: No description found for parameter 'color_range_property'
>> drivers/gpu/drm/drm_color_mgmt.c:382: warning: No description found for parameter 'plane'
   include/drm/drm_color_mgmt.h:1: warning: no structured comments found
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vim +/color_encoding +133 include/drm/drm_plane.h

07f83387 Jyri Sarha      2017-05-30  117  	enum drm_color_encoding color_encoding;
07f83387 Jyri Sarha      2017-05-30  118  	enum drm_color_range color_range;
07f83387 Jyri Sarha      2017-05-30  119  
43968d7b Daniel Vetter   2016-09-21  120  	/* Clipped coordinates */
43968d7b Daniel Vetter   2016-09-21  121  	struct drm_rect src, dst;
43968d7b Daniel Vetter   2016-09-21  122  
3835b46e Gustavo Padovan 2016-11-07  123  	/**
3835b46e Gustavo Padovan 2016-11-07  124  	 * @visible:
3835b46e Gustavo Padovan 2016-11-07  125  	 *
3835b46e Gustavo Padovan 2016-11-07  126  	 * Visibility of the plane. This can be false even if fb!=NULL and
3835b46e Gustavo Padovan 2016-11-07  127  	 * crtc!=NULL, due to clipping.
43968d7b Daniel Vetter   2016-09-21  128  	 */
43968d7b Daniel Vetter   2016-09-21  129  	bool visible;
43968d7b Daniel Vetter   2016-09-21  130  
43968d7b Daniel Vetter   2016-09-21  131  	struct drm_atomic_state *state;
43968d7b Daniel Vetter   2016-09-21  132  };
43968d7b Daniel Vetter   2016-09-21 @133  
1638d30c Rob Clark       2016-11-05  134  static inline struct drm_rect
1638d30c Rob Clark       2016-11-05  135  drm_plane_state_src(const struct drm_plane_state *state)
1638d30c Rob Clark       2016-11-05  136  {
1638d30c Rob Clark       2016-11-05  137  	struct drm_rect src = {
1638d30c Rob Clark       2016-11-05  138  		.x1 = state->src_x,
1638d30c Rob Clark       2016-11-05  139  		.y1 = state->src_y,
1638d30c Rob Clark       2016-11-05  140  		.x2 = state->src_x + state->src_w,
1638d30c Rob Clark       2016-11-05  141  		.y2 = state->src_y + state->src_h,

:::::: The code at line 133 was first introduced by commit
:::::: 43968d7b806d7a7e021261294c583a216fddf0e5 drm: Extract drm_plane.[hc]

:::::: TO: Daniel Vetter <daniel.vetter@ffwll.ch>
:::::: CC: Sean Paul <seanpaul@chromium.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
Ville Syrjälä June 8, 2017, 8:40 p.m. UTC | #2
On Tue, May 30, 2017 at 07:29:56PM +0300, Jyri Sarha wrote:
> Add 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.
> 
> Signed-off-by: Jyri Sarha <jsarha@ti.com>
> ---
>  drivers/gpu/drm/drm_atomic.c     |  8 ++++
>  drivers/gpu/drm/drm_color_mgmt.c | 93 ++++++++++++++++++++++++++++++++++++++++
>  include/drm/drm_color_mgmt.h     | 19 ++++++++
>  include/drm/drm_plane.h          |  8 ++++
>  4 files changed, 128 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index e163701..3c91775 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -786,6 +786,10 @@ 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);
> @@ -846,6 +850,10 @@ 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 {
> diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c
> index 3eda500..0fb23e5 100644
> --- a/drivers/gpu/drm/drm_color_mgmt.c
> +++ b/drivers/gpu/drm/drm_color_mgmt.c
> @@ -88,6 +88,19 @@
>   * drm_mode_crtc_set_gamma_size(). Drivers which support both should use
>   * drm_atomic_helper_legacy_gamma_set() to alias the legacy gamma ramp with the
>   * "GAMMA_LUT" property above.
> + *
> + * Support for different non RGB color encodings is controlled through
> + * &drm_plane specific COLOR_ENCODING and COLOR_RANGE properties:
> + *
> + * "COLOR_ENCODING"
> + * 	Optional plane enum property to support different non RGB
> + * 	color encodings. The driver can provide a subset of standard
> + * 	enum values supported by the DRM plane.
> + *
> + * "COLOR_RANGE"
> + * 	Optional plane enum property to support different non RGB
> + * 	color parameter ranges. The driver can provide a subset of
> + * 	standard enum values supported by the DRM plane.
>   */
>  
>  /**
> @@ -336,3 +349,83 @@ int drm_mode_gamma_get_ioctl(struct drm_device *dev,
>  	drm_modeset_unlock(&crtc->mutex);
>  	return ret;
>  }
> +
> +static const char * const color_encoding_name[] = {
> +	[DRM_COLOR_YCBCR_BT601] = "ITU-R BT.601 YCbCr",
> +	[DRM_COLOR_YCBCR_BT709] = "ITU-R BT.709 YCbCr",
> +	[DRM_COLOR_YCBCR_BT2020] = "ITU-R BT.2020 YCbCr",
> +};
> +
> +static const char * const color_range_name[] = {
> +	[DRM_COLOR_YCBCR_FULL_RANGE] = "YCbCr full range",
> +	[DRM_COLOR_YCBCR_LIMITED_RANGE] = "YCbCr limited range",
> +};
> +
> +/**
> + * drm_plane_create_color_properties - color encoding related plane properties
> + * @supported_encodings: bitfield indicating supported color encodings
> + * @supported_ranges: bitfileld indicating supported color ranges
> + * @default_encoding: default color encoding
> + * @default_range: default color range
> + *
> + * Create and attach plane specific COLOR_ENCODING and COLOR_RANGE
> + * properties to to the drm_plane object. The supported encodings and
> + * ranges should be provided in supported_encodings and
> + * supported_ranges bitmasks. Each bit set in the bitmask indicates
> + * the its number as enum value being supported.
> + */
> +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)
> +{
> +	struct drm_device *dev = plane->dev;
> +	struct drm_property *prop;
> +	struct drm_prop_enum_list enum_list[max(DRM_COLOR_ENCODING_MAX,
> +						DRM_COLOR_RANGE_MAX)];
> +	int i, len;
> +
> +	len = 0;
> +	for (i = 0; i < DRM_COLOR_ENCODING_MAX; i++) {
> +		if ((supported_encodings & BIT(i)) == 0)
> +			continue;
> +
> +		enum_list[len].type = i;
> +		enum_list[len].name = color_encoding_name[i];
> +		len++;
> +	}
> +
> +	prop = drm_property_create_enum(dev, DRM_MODE_PROP_ATOMIC,
                                             ^^^^^^^^^^^^^^^^^^^^
Apart from these "atomic only" flags I think this looks pretty good.

I've just posted a patch series hooking this up to i915, and I
also tossed in some userspace code for the intel ddx to actually
make use of this stuff. Seems to work OK, or at least greens change
their shade when I toggle the COLOR_ENCODING property ;)

So with s/DRM_MODE_PROP_ATOMIC/0/ this is
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

> +					"COLOR_ENCODING",
> +					enum_list, len);
> +	if (!prop)
> +		return -ENOMEM;
> +	plane->color_encoding_property = prop;
> +	drm_object_attach_property(&plane->base, prop, default_encoding);
> +	if (plane->state)
> +		plane->state->color_encoding = default_encoding;
> +
> +	len = 0;
> +	for (i = 0; i < DRM_COLOR_RANGE_MAX; i++) {
> +		if ((supported_ranges & BIT(i)) == 0)
> +			continue;
> +
> +		enum_list[len].type = i;
> +		enum_list[len].name = color_range_name[i];
> +		len++;
> +	}
> +
> +	prop = drm_property_create_enum(dev, DRM_MODE_PROP_ATOMIC,
> +					"COLOR_RANGE",
> +					enum_list, len);
> +	if (!prop)
> +		return -ENOMEM;
> +	plane->color_range_property = prop;
> +	drm_object_attach_property(&plane->base, prop, default_range);
> +	if (plane->state)
> +		plane->state->color_range = default_range;
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL(drm_plane_create_color_properties);
> diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h
> index 03a59cb..b3b6d30 100644
> --- a/include/drm/drm_color_mgmt.h
> +++ b/include/drm/drm_color_mgmt.h
> @@ -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
> diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
> index 9ab3e70..f4de5f9 100644
> --- a/include/drm/drm_plane.h
> +++ b/include/drm/drm_plane.h
> @@ -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)
> -- 
> 1.9.1
diff mbox

Patch

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index e163701..3c91775 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -786,6 +786,10 @@  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);
@@ -846,6 +850,10 @@  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 {
diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c
index 3eda500..0fb23e5 100644
--- a/drivers/gpu/drm/drm_color_mgmt.c
+++ b/drivers/gpu/drm/drm_color_mgmt.c
@@ -88,6 +88,19 @@ 
  * drm_mode_crtc_set_gamma_size(). Drivers which support both should use
  * drm_atomic_helper_legacy_gamma_set() to alias the legacy gamma ramp with the
  * "GAMMA_LUT" property above.
+ *
+ * Support for different non RGB color encodings is controlled through
+ * &drm_plane specific COLOR_ENCODING and COLOR_RANGE properties:
+ *
+ * "COLOR_ENCODING"
+ * 	Optional plane enum property to support different non RGB
+ * 	color encodings. The driver can provide a subset of standard
+ * 	enum values supported by the DRM plane.
+ *
+ * "COLOR_RANGE"
+ * 	Optional plane enum property to support different non RGB
+ * 	color parameter ranges. The driver can provide a subset of
+ * 	standard enum values supported by the DRM plane.
  */
 
 /**
@@ -336,3 +349,83 @@  int drm_mode_gamma_get_ioctl(struct drm_device *dev,
 	drm_modeset_unlock(&crtc->mutex);
 	return ret;
 }
+
+static const char * const color_encoding_name[] = {
+	[DRM_COLOR_YCBCR_BT601] = "ITU-R BT.601 YCbCr",
+	[DRM_COLOR_YCBCR_BT709] = "ITU-R BT.709 YCbCr",
+	[DRM_COLOR_YCBCR_BT2020] = "ITU-R BT.2020 YCbCr",
+};
+
+static const char * const color_range_name[] = {
+	[DRM_COLOR_YCBCR_FULL_RANGE] = "YCbCr full range",
+	[DRM_COLOR_YCBCR_LIMITED_RANGE] = "YCbCr limited range",
+};
+
+/**
+ * drm_plane_create_color_properties - color encoding related plane properties
+ * @supported_encodings: bitfield indicating supported color encodings
+ * @supported_ranges: bitfileld indicating supported color ranges
+ * @default_encoding: default color encoding
+ * @default_range: default color range
+ *
+ * Create and attach plane specific COLOR_ENCODING and COLOR_RANGE
+ * properties to to the drm_plane object. The supported encodings and
+ * ranges should be provided in supported_encodings and
+ * supported_ranges bitmasks. Each bit set in the bitmask indicates
+ * the its number as enum value being supported.
+ */
+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)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_property *prop;
+	struct drm_prop_enum_list enum_list[max(DRM_COLOR_ENCODING_MAX,
+						DRM_COLOR_RANGE_MAX)];
+	int i, len;
+
+	len = 0;
+	for (i = 0; i < DRM_COLOR_ENCODING_MAX; i++) {
+		if ((supported_encodings & BIT(i)) == 0)
+			continue;
+
+		enum_list[len].type = i;
+		enum_list[len].name = color_encoding_name[i];
+		len++;
+	}
+
+	prop = drm_property_create_enum(dev, DRM_MODE_PROP_ATOMIC,
+					"COLOR_ENCODING",
+					enum_list, len);
+	if (!prop)
+		return -ENOMEM;
+	plane->color_encoding_property = prop;
+	drm_object_attach_property(&plane->base, prop, default_encoding);
+	if (plane->state)
+		plane->state->color_encoding = default_encoding;
+
+	len = 0;
+	for (i = 0; i < DRM_COLOR_RANGE_MAX; i++) {
+		if ((supported_ranges & BIT(i)) == 0)
+			continue;
+
+		enum_list[len].type = i;
+		enum_list[len].name = color_range_name[i];
+		len++;
+	}
+
+	prop = drm_property_create_enum(dev, DRM_MODE_PROP_ATOMIC,
+					"COLOR_RANGE",
+					enum_list, len);
+	if (!prop)
+		return -ENOMEM;
+	plane->color_range_property = prop;
+	drm_object_attach_property(&plane->base, prop, default_range);
+	if (plane->state)
+		plane->state->color_range = default_range;
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_plane_create_color_properties);
diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h
index 03a59cb..b3b6d30 100644
--- a/include/drm/drm_color_mgmt.h
+++ b/include/drm/drm_color_mgmt.h
@@ -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
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 9ab3e70..f4de5f9 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -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)