glamor: Enable Xv support

In addition to the UXA texture paths (which in theory support VSync) and
direct overlay support, create a textured video paths that utilize the
glamor acceleration code.

Requested-by: Fabio Pedretti <fabio.ped@libero.it>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74311
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

3 files changed, 26 insertions, 2 deletions

diff --git a/src/uxa/intel_glamor.c b/src/uxa/intel_glamor.c
index 4d1c7679..e1e2a742 100644
--- a/src/uxa/intel_glamor.c
+++ b/src/uxa/intel_glamor.c
@@ -52,6 +52,17 @@ intel_glamor_exchange_buffers(struct intel_screen_private *intel,
 	glamor_egl_exchange_buffers(src, dst);
 }
 
+XF86VideoAdaptorPtr intel_glamor_xv_init(ScreenPtr screen, int num_ports)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+	intel_screen_private *intel = intel_get_screen_private(scrn);
+
+	if ((intel->uxa_flags & UXA_USE_GLAMOR) == 0)
+		return NULL;
+
+	return glamor_xv_init(screen, num_ports);
+}
+
 Bool
 intel_glamor_create_screen_resources(ScreenPtr screen)
 {
diff --git a/src/uxa/intel_glamor.h b/src/uxa/intel_glamor.h
index 46692bc8..2e305fc9 100644
--- a/src/uxa/intel_glamor.h
+++ b/src/uxa/intel_glamor.h
@@ -30,6 +30,8 @@
 #ifndef INTEL_GLAMOR_H
 #define INTEL_GLAMOR_H
 
+#include <xf86xv.h>
+
 #ifdef USE_GLAMOR
 
 Bool intel_glamor_pre_init(ScrnInfoPtr scrn);
@@ -45,6 +47,7 @@ void intel_glamor_destroy_pixmap(PixmapPtr pixmap);
 PixmapPtr intel_glamor_create_pixmap(ScreenPtr screen, int w, int h,
 				     int depth, unsigned int usage);
 void intel_glamor_exchange_buffers(struct intel_screen_private *intel, PixmapPtr src, PixmapPtr dst);
+XF86VideoAdaptorPtr intel_glamor_xv_init(ScreenPtr screen, int num_ports);
 #else
 
 static inline Bool intel_glamor_pre_init(ScrnInfoPtr scrn) { return TRUE; }
@@ -62,6 +65,7 @@ static inline PixmapPtr intel_glamor_create_pixmap(ScreenPtr screen, int w, int
 						   int depth, unsigned int usage) { return NULL; }
 
 static inline void intel_glamor_exchange_buffers(struct intel_screen_private *intel, PixmapPtr src, PixmapPtr dst) {}
+static inline XF86VideoAdaptorPtr intel_glamor_xv_init(ScreenPtr screen, int num_ports) { return NULL; }
 #endif
 
 #endif /* INTEL_GLAMOR_H */
diff --git a/src/uxa/intel_video.c b/src/uxa/intel_video.c
index 238cd471..d1b98d47 100644
--- a/src/uxa/intel_video.c
+++ b/src/uxa/intel_video.c
@@ -78,6 +78,7 @@
 #define _INTEL_XVMC_SERVER_
 #include "intel_xvmc.h"
 #endif
+#include "intel_glamor.h"
 
 #define OFF_DELAY	250	/* milliseconds */
 
@@ -331,13 +332,13 @@ void I830InitVideo(ScreenPtr screen)
 	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
 	intel_screen_private *intel = intel_get_screen_private(scrn);
 	XF86VideoAdaptorPtr *adaptors = NULL, *newAdaptors = NULL;
-	XF86VideoAdaptorPtr overlayAdaptor = NULL, texturedAdaptor = NULL;
+	XF86VideoAdaptorPtr overlayAdaptor = NULL, texturedAdaptor = NULL, glamorAdaptor = NULL;
 	int num_adaptors = xf86XVListGenericAdaptors(scrn, &adaptors);
 	/* Give our adaptor list enough space for the overlay and/or texture video
 	 * adaptors.
 	 */
 	newAdaptors = realloc(adaptors,
-			      (num_adaptors + 2) * sizeof(XF86VideoAdaptorPtr));
+			      (num_adaptors + 3) * sizeof(XF86VideoAdaptorPtr));
 	if (newAdaptors == NULL) {
 		free(adaptors);
 		return;
@@ -378,12 +379,20 @@ void I830InitVideo(ScreenPtr screen)
 		}
 	}
 
+	glamorAdaptor = intel_glamor_xv_init(screen, 16);
+	if (glamorAdaptor != NULL)
+		xf86DrvMsg(scrn->scrnIndex, X_INFO,
+			   "Set up textured video using glamor\n");
+
 	if (overlayAdaptor && intel->XvPreferOverlay)
 		adaptors[num_adaptors++] = overlayAdaptor;
 
 	if (texturedAdaptor)
 		adaptors[num_adaptors++] = texturedAdaptor;
 
+	if (glamorAdaptor)
+		adaptors[num_adaptors++] = glamorAdaptor;
+
 	if (overlayAdaptor && !intel->XvPreferOverlay)
 		adaptors[num_adaptors++] = overlayAdaptor;