[PATCH xf86-video-intel] sna: Add XV_COLORSPACE attribute support for sprite Xv adaptors

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Use the new "COLOR_ENCODING" plane property to implement the
XV_COLORSPACE port attribute for sprite Xv adaptors.

Cc: Jyri Sarha <jsarha@xxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 src/sna/sna.h              |   1 +
 src/sna/sna_display.c      | 148 +++++++++++++++++++++++++++++++++++----------
 src/sna/sna_video.h        |   3 +
 src/sna/sna_video_sprite.c |  22 ++++++-
 4 files changed, 142 insertions(+), 32 deletions(-)

diff --git a/src/sna/sna.h b/src/sna/sna.h
index 5283ce436a3b..c9097d3db158 100644
--- a/src/sna/sna.h
+++ b/src/sna/sna.h
@@ -634,6 +634,7 @@ static inline void sna_present_cancel_flip(struct sna *sna) { }
 
 extern unsigned sna_crtc_count_sprites(xf86CrtcPtr crtc);
 extern bool sna_crtc_set_sprite_rotation(xf86CrtcPtr crtc, unsigned idx, uint32_t rotation);
+extern void sna_crtc_set_sprite_colorspace(xf86CrtcPtr crtc, unsigned idx, int colorspace);
 extern uint32_t sna_crtc_to_sprite(xf86CrtcPtr crtc, unsigned idx);
 extern bool sna_crtc_is_transformed(xf86CrtcPtr crtc);
 
diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c
index ea2f148d213c..86aa711f886d 100644
--- a/src/sna/sna_display.c
+++ b/src/sna/sna_display.c
@@ -222,6 +222,10 @@ struct sna_crtc {
 			uint32_t supported;
 			uint32_t current;
 		} rotation;
+		struct {
+			uint32_t prop;
+			uint64_t values[2];
+		} color_encoding;
 		struct list link;
 	} primary;
 	struct list sprites;
@@ -3293,17 +3297,124 @@ static const xf86CrtcFuncsRec sna_crtc_funcs = {
 #endif
 };
 
-inline static bool prop_is_rotation(struct drm_mode_get_property *prop)
+inline static bool prop_has_type_and_name(const struct drm_mode_get_property *prop,
+					  unsigned int type, const char *name)
 {
-	if ((prop->flags & (1 << 5)) == 0)
+	if ((prop->flags & (1 << type)) == 0)
 		return false;
 
-	if (strcmp(prop->name, "rotation"))
+	if (strcmp(prop->name, name))
 		return false;
 
 	return true;
 }
 
+inline static bool prop_is_rotation(const struct drm_mode_get_property *prop)
+{
+	return prop_has_type_and_name(prop, 5, "rotation");
+}
+
+static void parse_rotation_prop(struct sna *sna, struct plane *p,
+				struct drm_mode_get_property *prop,
+				uint64_t value)
+{
+	struct drm_mode_property_enum *enums;
+	int j;
+
+	p->rotation.prop = prop->prop_id;
+	p->rotation.current = value;
+
+	DBG(("%s: found rotation property .id=%d, value=%ld, num_enums=%d\n",
+	     __FUNCTION__, prop->prop_id, value, prop->count_enum_blobs));
+
+	enums = malloc(prop->count_enum_blobs * sizeof(struct drm_mode_property_enum));
+	if (!enums)
+		return;
+
+	prop->count_values = 0;
+	prop->enum_blob_ptr = (uintptr_t)enums;
+
+	if (drmIoctl(sna->kgem.fd, DRM_IOCTL_MODE_GETPROPERTY, prop)) {
+		free(enums);
+		return;
+	}
+
+	/* XXX we assume that the mapping between kernel enum and
+	 * RandR remains fixed for our lifetimes.
+	 */
+	VG(VALGRIND_MAKE_MEM_DEFINED(enums, sizeof(*enums)*prop->count_enum_blobs));
+	for (j = 0; j < prop->count_enum_blobs; j++) {
+		DBG(("%s: rotation[%d] = %s [%lx]\n", __FUNCTION__,
+		     j, enums[j].name, (long)enums[j].value));
+		p->rotation.supported |= 1 << enums[j].value;
+	}
+
+	free(enums);
+}
+
+inline static bool prop_is_color_encoding(const struct drm_mode_get_property *prop)
+{
+	return prop_has_type_and_name(prop, 3, "COLOR_ENCODING");
+}
+
+static void parse_color_encoding_prop(struct sna *sna, struct plane *p,
+				      struct drm_mode_get_property *prop,
+				      uint64_t value)
+{
+	struct drm_mode_property_enum *enums;
+	unsigned int supported = 0;
+	int j;
+
+	DBG(("%s: found color encoding property .id=%d, value=%ld, num_enums=%d\n",
+	     __FUNCTION__, prop->prop_id, (long)value, prop->count_enum_blobs));
+
+	enums = malloc(prop->count_enum_blobs * sizeof(struct drm_mode_property_enum));
+	if (!enums)
+		return;
+
+	prop->count_values = 0;
+	prop->enum_blob_ptr = (uintptr_t)enums;
+
+	if (drmIoctl(sna->kgem.fd, DRM_IOCTL_MODE_GETPROPERTY, prop)) {
+		free(enums);
+		return;
+	}
+
+	VG(VALGRIND_MAKE_MEM_DEFINED(enums, sizeof(*enums)*prop->count_enum_blobs));
+	for (j = 0; j < prop->count_enum_blobs; j++) {
+		if (!strcmp(enums[j].name, "ITU-R BT.601 YCbCr")) {
+			p->color_encoding.values[0] = enums[j].value;
+			supported |= 1 << 0;
+		} else if (!strcmp(enums[j].name, "ITU-R BT.709 YCbCr")) {
+			p->color_encoding.values[1] = enums[j].value;
+			supported |= 1 << 1;
+		}
+	}
+
+	free(enums);
+
+	if (supported == 3)
+		p->color_encoding.prop = prop->prop_id;
+}
+
+void sna_crtc_set_sprite_colorspace(xf86CrtcPtr crtc,
+				    unsigned idx, int colorspace)
+{
+	struct plane *p;
+
+	assert(to_sna_crtc(crtc));
+
+	p = lookup_sprite(to_sna_crtc(crtc), idx);
+
+	if (!p->color_encoding.prop)
+		return;
+
+	drmModeObjectSetProperty(to_sna(crtc->scrn)->kgem.fd,
+				 p->id, DRM_MODE_OBJECT_PLANE,
+				 p->color_encoding.prop,
+				 p->color_encoding.values[colorspace]);
+}
+
 static int plane_details(struct sna *sna, struct plane *p)
 {
 #define N_STACK_PROPS 32 /* must be a multiple of 2 */
@@ -3360,34 +3471,9 @@ static int plane_details(struct sna *sna, struct plane *p)
 		if (strcmp(prop.name, "type") == 0) {
 			type = values[i];
 		} else if (prop_is_rotation(&prop)) {
-			struct drm_mode_property_enum *enums;
-
-			p->rotation.prop = props[i];
-			p->rotation.current = values[i];
-
-			DBG(("%s: found rotation property .id=%d, value=%ld, num_enums=%d\n",
-			     __FUNCTION__, prop.prop_id, (long)values[i], prop.count_enum_blobs));
-			enums = malloc(prop.count_enum_blobs * sizeof(struct drm_mode_property_enum));
-			if (enums != NULL) {
-				prop.count_values = 0;
-				prop.enum_blob_ptr = (uintptr_t)enums;
-
-				if (drmIoctl(sna->kgem.fd, DRM_IOCTL_MODE_GETPROPERTY, &prop) == 0) {
-					int j;
-
-					/* XXX we assume that the mapping between kernel enum and
-					 * RandR remains fixed for our lifetimes.
-					 */
-					VG(VALGRIND_MAKE_MEM_DEFINED(enums, sizeof(*enums)*prop.count_enum_blobs));
-					for (j = 0; j < prop.count_enum_blobs; j++) {
-						DBG(("%s: rotation[%d] = %s [%lx]\n", __FUNCTION__,
-						     j, enums[j].name, (long)enums[j].value));
-						p->rotation.supported |= 1 << enums[j].value;
-					}
-				}
-
-				free(enums);
-			}
+			parse_rotation_prop(sna, p, &prop, values[i]);
+		} else if (prop_is_color_encoding(&prop)) {
+			parse_color_encoding_prop(sna, p, &prop, values[i]);
 		}
 	}
 
diff --git a/src/sna/sna_video.h b/src/sna/sna_video.h
index 6b1c864ce9d8..6abf6d540b18 100644
--- a/src/sna/sna_video.h
+++ b/src/sna/sna_video.h
@@ -100,6 +100,9 @@ struct sna_video {
 	unsigned color_key_changed;
 	bool has_color_key;
 
+	unsigned colorspace;
+	unsigned colorspace_changed;
+
 	/** YUV data buffers */
 	struct kgem_bo *old_buf[2];
 	struct kgem_bo *buf;
diff --git a/src/sna/sna_video_sprite.c b/src/sna/sna_video_sprite.c
index 44898a748e1c..f713ba356b41 100644
--- a/src/sna/sna_video_sprite.c
+++ b/src/sna/sna_video_sprite.c
@@ -69,11 +69,12 @@ struct local_mode_set_plane {
 
 #define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, true)
 
-static Atom xvColorKey, xvAlwaysOnTop, xvSyncToVblank;
+static Atom xvColorKey, xvAlwaysOnTop, xvSyncToVblank, xvColorspace;
 
 static XvFormatRec formats[] = { {15}, {16}, {24} };
 static const XvImageRec images[] = { XVIMAGE_YUY2, XVIMAGE_UYVY, XVMC_RGB888, XVMC_RGB565 };
 static const XvAttributeRec attribs[] = {
+	{ XvSettable | XvGettable, 0, 1, (char *)"XV_COLORSPACE" }, /* BT.601, BT.709 */
 	{ XvSettable | XvGettable, 0, 0xffffff, (char *)"XV_COLORKEY" },
 	{ XvSettable | XvGettable, 0, 1, (char *)"XV_ALWAYS_ON_TOP" },
 };
@@ -119,6 +120,10 @@ static int sna_video_sprite_set_attr(ddSetPortAttribute_ARGS)
 		video->color_key = value;
 		RegionEmpty(&video->clip);
 		DBG(("COLORKEY = %ld\n", (long)value));
+	} else if (attribute == xvColorspace) {
+		video->colorspace_changed = ~0;
+		video->colorspace = value;
+		DBG(("COLORSPACE = %ld\n", (long)value));
 	} else if (attribute == xvSyncToVblank) {
 		DBG(("%s: SYNC_TO_VBLANK: %d -> %d\n", __FUNCTION__,
 		     video->SyncToVblank, !!value));
@@ -140,6 +145,8 @@ static int sna_video_sprite_get_attr(ddGetPortAttribute_ARGS)
 
 	if (attribute == xvColorKey)
 		*value = video->color_key;
+	else if (attribute == xvColorspace)
+		*value = video->colorspace;
 	else if (attribute == xvAlwaysOnTop)
 		*value = video->AlwaysOnTop;
 	else if (attribute == xvSyncToVblank)
@@ -265,6 +272,16 @@ sna_video_sprite_show(struct sna *sna,
 		video->color_key_changed &= ~(1 << pipe);
 	}
 
+	if (video->colorspace_changed & (1 << pipe)) {
+		DBG(("%s: updating colorspace: %x\n",
+		     __FUNCTION__, video->colorspace));
+
+		sna_crtc_set_sprite_colorspace(crtc, video->idx,
+					       video->colorspace);
+
+		video->colorspace_changed &= ~(1 << pipe);
+	}
+
 	update_dst_box_to_crtc_coords(sna, crtc, dstBox);
 	if (frame->rotation & (RR_Rotate_90 | RR_Rotate_270)) {
 		int tmp = frame->width;
@@ -769,6 +786,8 @@ void sna_video_sprite_setup(struct sna *sna, ScreenPtr screen)
 		video->alignment = 64;
 		video->color_key = sna_video_sprite_color_key(sna);
 		video->color_key_changed = ~0;
+		video->colorspace = 1; /* BT.709 */
+		video->colorspace_changed = ~0;
 		video->has_color_key = true;
 		video->brightness = -19;	/* (255/219) * -16 */
 		video->contrast = 75;	/* 255/219 * 64 */
@@ -789,6 +808,7 @@ void sna_video_sprite_setup(struct sna *sna, ScreenPtr screen)
 	adaptor->base_id = adaptor->pPorts[0].id;
 
 	xvColorKey = MAKE_ATOM("XV_COLORKEY");
+	xvColorspace = MAKE_ATOM("XV_COLORSPACE");
 	xvAlwaysOnTop = MAKE_ATOM("XV_ALWAYS_ON_TOP");
 	xvSyncToVblank = MAKE_ATOM("XV_SYNC_TO_VBLANK");
 
-- 
2.13.6

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