[PATCH xf86-video-amdgpu 1/4] Define per x-screen individual drmmode_crtc_funcs

[Michel Dänzer]

From: Mario Kleiner <mario.kleiner.de at gmail.com>

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>
(Ported from radeon commit 21f6753462464acfd3c452393328c977a375ce26)
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/amdgpu_drv.h      |  1 +
 src/drmmode_display.c | 14 ++++++++++----
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/amdgpu_drv.h b/src/amdgpu_drv.h
index f60b192da..40157262e 100644
--- a/src/amdgpu_drv.h
+++ b/src/amdgpu_drv.h
@@ -340,6 +340,7 @@ typedef struct {
 		SetSharedPixmapBackingProcPtr SavedSetSharedPixmapBacking;
 	} glamor;
 
+	xf86CrtcFuncsRec drmmode_crtc_funcs;
 } AMDGPUInfoRec, *AMDGPUInfoPtr;
 
 
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 047179449..be3deef20 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -1344,8 +1344,9 @@ drmmode_crtc_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_res
 	xf86CrtcPtr crtc;
 	drmmode_crtc_private_ptr drmmode_crtc;
 	AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(pScrn);
+	AMDGPUInfoPtr info = AMDGPUPTR(pScrn);
 
-	crtc = xf86CrtcCreate(pScrn, &drmmode_crtc_funcs);
+	crtc = xf86CrtcCreate(pScrn, &info->drmmode_crtc_funcs);
 	if (crtc == NULL)
 		return 0;
 
@@ -2348,11 +2349,16 @@ Bool drmmode_pre_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, int cpp)
 	xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, AMDGPU_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->use_glamor) {
 		/* 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;
 	}
 
 	for (i = 0; i < mode_res->count_crtcs; i++)
-- 
2.16.1