[PATCH xf86-video-intel 5/6] sna/video/textured: Add XV_COLOR_RANGE port attribute

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Add a new Xv port attribute XV_COLOR_RANGE to select the incoming YUV
quantization range. 0 means limited range (Y: 16-235, Cb/Cr: 16-240),
1 means full range (0-255).

Cc: xorg-devel at lists.x.org
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 src/sna/sna_video_textured.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/sna/sna_video_textured.c b/src/sna/sna_video_textured.c
index a784fe2ec0f4..a33cbc4506cb 100644
--- a/src/sna/sna_video_textured.c
+++ b/src/sna/sna_video_textured.c
@@ -36,7 +36,7 @@
 
 #define MAKE_ATOM(a) MakeAtom(a, sizeof(a) - 1, true)
 
-static Atom xvBrightness, xvContrast, xvSyncToVblank, xvColorspace;
+static Atom xvBrightness, xvContrast, xvSyncToVblank, xvColorspace, xvColorRange;
 
 static XvFormatRec Formats[] = {
 	{15}, {16}, {24}
@@ -45,6 +45,7 @@ static XvFormatRec Formats[] = {
 static const XvAttributeRec Attributes[] = {
 	{XvSettable | XvGettable, -1, 1, (char *)"XV_SYNC_TO_VBLANK"},
 	{XvSettable | XvGettable, 0, 1, (char *)"XV_COLORSPACE"}, /* BT.601, BT.709 */
+	{XvSettable | XvGettable, 0, 1, (char *)"XV_COLOR_RANGE"}, /* limited, full */
 	//{XvSettable | XvGettable, -128, 127, (char *)"XV_BRIGHTNESS"},
 	//{XvSettable | XvGettable, 0, 255, (char *)"XV_CONTRAST"},
 };
@@ -108,6 +109,11 @@ sna_video_textured_set_attribute(ddSetPortAttribute_ARGS)
 			return BadValue;
 
 		video->colorspace = value;
+	} else if (attribute == xvColorRange) {
+		if (value < 0 || value > 1)
+			return BadValue;
+
+		video->color_range = value;
 	} else
 		return BadMatch;
 
@@ -127,6 +133,8 @@ sna_video_textured_get_attribute(ddGetPortAttribute_ARGS)
 		*value = video->SyncToVblank;
 	else if (attribute == xvColorspace)
 		*value = video->colorspace;
+	else if (attribute == xvColorRange)
+		*value = video->color_range;
 	else
 		return BadMatch;
 
@@ -435,6 +443,7 @@ void sna_video_textured_setup(struct sna *sna, ScreenPtr screen)
 		v->textured = true;
 		v->alignment = 4;
 		v->colorspace = 1; /* BT.709 */
+		v->color_range = 0; /* limited */
 		v->SyncToVblank = (sna->flags & SNA_NO_WAIT) == 0;
 
 		RegionNull(&v->clip);
@@ -456,6 +465,7 @@ void sna_video_textured_setup(struct sna *sna, ScreenPtr screen)
 	xvBrightness = MAKE_ATOM("XV_BRIGHTNESS");
 	xvContrast = MAKE_ATOM("XV_CONTRAST");
 	xvColorspace = MAKE_ATOM("XV_COLORSPACE");
+	xvColorRange = MAKE_ATOM("XV_COLOR_RANGE");
 	xvSyncToVblank = MAKE_ATOM("XV_SYNC_TO_VBLANK");
 
 	DBG(("%s: '%s' initialized %d ports\n", __FUNCTION__, adaptor->name, adaptor->nPorts));
-- 
2.16.4