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drm: Add properties to control YCbCr to RGB conversion

PATCH In review Jyri Sarha 3 participants 6 messages May 30, 2017 – Jun 8, 2017

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Jyri Sarha

author
#0 lore raw

v5 cover drm: Add properties to control YCbCr to RGB conversion

This is almost just a resend of the previous version, but I had forgotten the EXPORT_SYMBOL(drm_plane_create_color_properties) so bumped the version up. Just wanted to be sure the latest public version actually working.

Changes since v4 version:
- Add EXPORT_SYMBOL(drm_plane_create_color_properties);
- Rebase on top of the latest drm-next

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 | 93 ++++++++++++++++++++++++++++++++++++++++
 include/drm/drm_color_mgmt.h     | 19 ++++++++
 include/drm/drm_plane.h          |  8 ++++
 include/drm/drm_property.h       |  2 +-
 5 files changed, 129 insertions(+), 1 deletion(-)
Signature · 6 lines
1.9.1

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author
#1 lore raw

PATCH v5 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
index 13e8c17..619868dc 100644
@@ -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)
Signature · 6 lines
1.9.1

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#2 lore raw

Re: [PATCH v5 1/2] drm: Add const to name field declaration in struct drm_prop_enum_list

Quoted 7 lines · Jyri Sarha

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.

Thanks for the patch. I've pushed this to drm-misc-next.

Quoted 19 lines
---
 include/drm/drm_property.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
include/drm/drm_property.h +1 -1
index 13e8c17..619868dc 100644
@@ -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)
Signature · 1 line
1.9.1
Signature · 6 lines
Ville Syrjälä
Intel OTC
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author
#3 lore raw

PATCH v5 2/2 drm: Add optinal COLOR_ENCODING and COLOR_RANGE properties to drm_plane

In reply to Jyri Sarha

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.

---
 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(+)
drivers/gpu/drm/drm_atomic.c +8 -0
index e163701..3c91775 100644
@@ -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 {
drivers/gpu/drm/drm_color_mgmt.c +93 -0

102 lines not on this page · raw message

include/drm/drm_color_mgmt.h +19 -0
index 03a59cb..b3b6d30 100644
@@ -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
index 9ab3e70..f4de5f9 100644
@@ -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)
Signature · 6 lines
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#4 lore raw

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

All warnings (new ones prefixed by >>):

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 >>):

WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org)
arch/x86/include/asm/uaccess_32.h:1: warning: no structured comments found
include/linux/init.h:1: warning: no structured comments found
include/linux/mod_devicetable.h:686: warning: Excess struct/union/enum/typedef member 'ver_major' description in 'fsl_mc_device_id' include/linux/mod_devicetable.h:686: warning: Excess struct/union/enum/typedef member 'ver_minor' description in 'fsl_mc_device_id' kernel/sched/core.c:2088: warning: No description found for parameter 'rf'
kernel/sched/core.c:2088: warning: Excess function parameter 'cookie' description in 'try_to_wake_up_local' include/linux/kthread.h:26: warning: Excess function parameter '...' description in 'kthread_create' kernel/sys.c:1: warning: no structured comments found
include/linux/device.h:969: warning: No description found for parameter 'dma_ops' drivers/dma-buf/seqno-fence.c:1: warning: no structured comments found
include/linux/iio/iio.h:597: warning: No description found for parameter 'trig_readonly' include/linux/iio/trigger.h:151: warning: No description found for parameter 'indio_dev' include/linux/iio/trigger.h:151: warning: No description found for parameter 'trig' include/linux/device.h:970: warning: No description found for parameter 'dma_ops' include/linux/usb/gadget.h:230: warning: No description found for parameter 'claimed' include/linux/usb/gadget.h:230: warning: No description found for parameter 'enabled' include/linux/usb/gadget.h:408: warning: No description found for parameter 'quirk_altset_not_supp' include/linux/usb/gadget.h:408: warning: No description found for parameter 'quirk_stall_not_supp' include/linux/usb/gadget.h:408: warning: No description found for parameter 'quirk_zlp_not_supp' include/drm/drm_drv.h:507: warning: No description found for parameter 'set_busid'
include/drm/drm_drv.h:507: warning: No description found for parameter 'irq_handler' include/drm/drm_drv.h:507: warning: No description found for parameter 'irq_preinstall' include/drm/drm_drv.h:507: warning: No description found for parameter 'irq_postinstall' include/drm/drm_drv.h:507: warning: No description found for parameter 'irq_uninstall' include/drm/drm_drv.h:507: warning: No description found for parameter 'debugfs_init' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_open_object' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_close_object' include/drm/drm_drv.h:507: warning: No description found for parameter 'prime_handle_to_fd' include/drm/drm_drv.h:507: warning: No description found for parameter 'prime_fd_to_handle' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_export' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_import' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_pin' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_unpin' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_res_obj' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_get_sg_table' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_import_sg_table' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_vmap' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_vunmap' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_prime_mmap' include/drm/drm_drv.h:507: warning: No description found for parameter 'gem_vm_ops' include/drm/drm_drv.h:507: warning: No description found for parameter 'major'
include/drm/drm_drv.h:507: warning: No description found for parameter 'minor'
include/drm/drm_drv.h:507: warning: No description found for parameter 'patchlevel' include/drm/drm_drv.h:507: warning: No description found for parameter 'name'
include/drm/drm_drv.h:507: warning: No description found for parameter 'desc'
include/drm/drm_drv.h:507: warning: No description found for parameter 'date'
include/drm/drm_drv.h:507: warning: No description found for parameter 'driver_features' include/drm/drm_drv.h:507: warning: No description found for parameter 'ioctls'
include/drm/drm_drv.h:507: warning: No description found for parameter 'num_ioctls' include/drm/drm_drv.h:507: warning: No description found for parameter 'fops'

>> 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
drivers/gpu/drm/drm_color_mgmt.c:383: warning: No description found for parameter 'plane' Documentation/core-api/assoc_array.rst:13: WARNING: Enumerated list ends without a blank line; unexpected unindent. Documentation/doc-guide/sphinx.rst:126: ERROR: Unknown target name: "sphinx c domain".
kernel/sched/fair.c:7650: WARNING: Inline emphasis start-string without end-string.
kernel/time/timer.c:1200: ERROR: Unexpected indentation.
kernel/time/timer.c:1202: ERROR: Unexpected indentation.
kernel/time/timer.c:1203: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/wait.h:122: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/wait.h:125: ERROR: Unexpected indentation.
include/linux/wait.h:127: WARNING: Block quote ends without a blank line; unexpected unindent.
kernel/time/hrtimer.c:990: WARNING: Block quote ends without a blank line; unexpected unindent.
kernel/signal.c:322: WARNING: Inline literal start-string without end-string.
include/linux/iio/iio.h:219: ERROR: Unexpected indentation.
include/linux/iio/iio.h:220: WARNING: Block quote ends without a blank line; unexpected unindent.
include/linux/iio/iio.h:226: WARNING: Definition list ends without a blank line; unexpected unindent. drivers/iio/industrialio-core.c:638: ERROR: Unknown target name: "iio_val".
drivers/iio/industrialio-core.c:645: ERROR: Unknown target name: "iio_val".
drivers/message/fusion/mptbase.c:5051: WARNING: Definition list ends without a blank line; unexpected unindent. drivers/tty/serial/serial_core.c:1898: WARNING: Definition list ends without a blank line; unexpected unindent. drivers/pci/pci.c:3457: ERROR: Unexpected indentation.
include/linux/regulator/driver.h:271: ERROR: Unknown target name: "regulator_regmap_x_voltage".
include/linux/spi/spi.h:370: ERROR: Unexpected indentation.
drivers/gpu/drm/drm_scdc_helper.c:203: ERROR: Unexpected indentation.
drivers/gpu/drm/drm_scdc_helper.c:204: WARNING: Block quote ends without a blank line; unexpected unindent. drivers/gpu/drm/drm_ioctl.c:690: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/gpu/todo.rst:111: ERROR: Unknown target name: "drm_fb".
sound/soc/soc-core.c:2670: ERROR: Unknown target name: "snd_soc_daifmt".
sound/core/jack.c:312: ERROR: Unknown target name: "snd_jack_btn".
Documentation/userspace-api/unshare.rst:108: WARNING: Inline emphasis start-string without end-string. Documentation/usb/typec.rst:: WARNING: document isn't included in any toctree
Documentation/usb/usb3-debug-port.rst:: WARNING: document isn't included in any toctree
Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 122: 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supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 164: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "~/.fonts.conf", line 193: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 43: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 56: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 69: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 82: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 96: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 109: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 122: Having multiple values in <test> isn't supported and may not work as expected Fontconfig warning: "/home/kbuild/.config/fontconfig/fonts.conf", line 133: Having multiple values in <test> isn't supported and may not work as expected

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 <[email protected]> :::::: CC: Sean Paul <[email protected]>

---
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Reviewed-by on v5 2/2
#5 lore raw

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

In reply to Jyri Sarha
Quoted 107 lines · Jyri Sarha

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.

---
 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(+)
drivers/gpu/drm/drm_atomic.c +8 -0
index e163701..3c91775 100644
@@ -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 {
drivers/gpu/drm/drm_color_mgmt.c +51 -0
index 3eda500..0fb23e5 100644
@@ -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;

drivers/gpu/drm/drm_color_mgmt.c int drm_mode_gamma_get_ioctl(struct drm_device *dev, · line 399

Quoted 10 lines
drivers/gpu/drm/drm_color_mgmt.c +10 -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

Quoted 102 lines
drivers/gpu/drm/drm_color_mgmt.c +32 -0
+					"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);
include/drm/drm_color_mgmt.h +19 -0
index 03a59cb..b3b6d30 100644
@@ -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
index 9ab3e70..f4de5f9 100644
@@ -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)
Signature · 1 line
1.9.1
Signature · 6 lines
Ville Syrjälä
Intel OTC
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