[PATCH 1/4] Define per x-screen individual drmmode_crtc_funcs

[mario.kleiner.de@xxxxxxxxx (Mario Kleiner)]

This allows to en-/disable some functions depending
on individual screen settings.

Prep work for more efficient depth 30 support.

Suggested-by: Michel Dänzer <michel.daenzer at amd.com>
Signed-off-by: Mario Kleiner <mario.kleiner.de at gmail.com>
---
 src/drmmode_display.c | 14 ++++++++++----
 src/radeon.h          |  2 ++
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index f55677f..b1c874c 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -1395,8 +1395,9 @@ drmmode_crtc_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_res
 	xf86CrtcPtr crtc;
 	drmmode_crtc_private_ptr drmmode_crtc;
 	RADEONEntPtr pRADEONEnt = RADEONEntPriv(pScrn);
+	RADEONInfoPtr info = RADEONPTR(pScrn);
 
-	crtc = xf86CrtcCreate(pScrn, &drmmode_crtc_funcs);
+	crtc = xf86CrtcCreate(pScrn, &info->drmmode_crtc_funcs);
 	if (crtc == NULL)
 		return 0;
 
@@ -2531,11 +2532,16 @@ Bool drmmode_pre_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, int cpp)
 	xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, RADEON_LOGLEVEL_DEBUG,
 		       "%d crtcs needed for screen.\n", crtcs_needed);
 
+	/* Need per-screen drmmode_crtc_funcs, based on our global template,
+	 * so we can disable some functions, depending on screen settings.
+	 */
+	info->drmmode_crtc_funcs = drmmode_crtc_funcs;
+
 	if (info->r600_shadow_fb) {
 		/* Rotation requires hardware acceleration */
-		drmmode_crtc_funcs.shadow_allocate = NULL;
-		drmmode_crtc_funcs.shadow_create = NULL;
-		drmmode_crtc_funcs.shadow_destroy = NULL;
+		info->drmmode_crtc_funcs.shadow_allocate = NULL;
+		info->drmmode_crtc_funcs.shadow_create = NULL;
+		info->drmmode_crtc_funcs.shadow_destroy = NULL;
 	}
 
 	drmmode->count_crtcs = mode_res->count_crtcs;
diff --git a/src/radeon.h b/src/radeon.h
index 9658e02..5b71736 100644
--- a/src/radeon.h
+++ b/src/radeon.h
@@ -635,6 +635,8 @@ typedef struct {
 	SetSharedPixmapBackingProcPtr SavedSetSharedPixmapBacking;
     } glamor;
 #endif /* USE_GLAMOR */
+
+    xf86CrtcFuncsRec drmmode_crtc_funcs;
 } RADEONInfoRec, *RADEONInfoPtr;
 
 /* radeon_accel.c */
-- 
2.7.4