Re: [PATCH i-g-t v7] lib/igt_kms: Add COMMIT_ATOMIC to igt_display_commit2()

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Op 07-03-16 om 13:50 schreef Lionel Landwerlin:
> Hi Pratik,
>
> I'm really looking forward to get this merged.
> Just a few comments on the plane commit part below.

Would the following diff to the patch satisfy you? It would clean up things a lot.

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 1f738e14f52f..454ff7552b4a 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1534,14 +1534,6 @@ igt_atomic_prepare_plane_commit(igt_plane_t *plane, igt_output_t *output,
 
 	igt_display_t *display = output->display;
 	uint32_t fb_id, crtc_id;
-	uint32_t src_x;
-	uint32_t src_y;
-	uint32_t src_w;
-	uint32_t src_h;
-	int32_t crtc_x;
-	int32_t crtc_y;
-	uint32_t crtc_w;
-	uint32_t crtc_h;
 
 	igt_assert(plane->drm_plane);
 
@@ -1552,54 +1544,30 @@ igt_atomic_prepare_plane_commit(igt_plane_t *plane, igt_output_t *output,
 	fb_id = igt_plane_get_fb_id(plane);
 	crtc_id = output->config.crtc->crtc_id;
 
-	if ((plane->fb_changed || plane->size_changed) && fb_id == 0) {
-
-		LOG(display,
-		    "%s: populating plane data: pipe %s, plane %d, disabling\n",
-		     igt_output_name(output),
-		     kmstest_pipe_name(output->config.pipe),
-		     plane->index);
-
-		/* populate plane req */
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_ID, 0);
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_FB_ID, 0);
-
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_SRC_X, IGT_FIXED(0, 0));
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_SRC_Y, IGT_FIXED(0, 0));
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_SRC_W, IGT_FIXED(0, 0));
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_SRC_H, IGT_FIXED(0, 0));
-
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_X, 0);
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_Y, 0);
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_W, 0);
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_H, 0);
-
-	} else if (plane->fb_changed || plane->position_changed ||
-			plane->size_changed) {
-
-		src_x = IGT_FIXED(plane->fb->src_x, 0); /* src_x */
-		src_y = IGT_FIXED(plane->fb->src_y, 0); /* src_y */
-		src_w = IGT_FIXED(plane->fb->src_w, 0); /* src_w */
-		src_h = IGT_FIXED(plane->fb->src_h, 0); /* src_h */
-		crtc_x = plane->crtc_x;
-		crtc_y = plane->crtc_y;
-		crtc_w = plane->crtc_w;
-		crtc_h = plane->crtc_h;
-
-		LOG(display,
-		    "%s: populating plane data: %s.%d, fb %u, src = (%d, %d) "
-		    "%ux%u dst = (%u, %u) %ux%u\n",
-		    igt_output_name(output),
-		    kmstest_pipe_name(output->config.pipe),
-		    plane->index,
-		    fb_id,
-		    src_x >> 16, src_y >> 16, src_w >> 16, src_h >> 16,
-		    crtc_x, crtc_y, crtc_w, crtc_h);
-
-
-		/* populate plane req */
-		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_ID, crtc_id);
+	LOG(display,
+	    "%s: populating plane data: %s.%d, fb %u, src = (%d, %d) "
+	    "%ux%u dst = (%u, %u) %ux%u\n",
+	    igt_output_name(output),
+	    kmstest_pipe_name(output->config.pipe),
+	    plane->index,
+	    fb_id,
+	    src_x >> 16, src_y >> 16, src_w >> 16, src_h >> 16,
+	    crtc_x, crtc_y, crtc_w, crtc_h);
+
+	if (plane->fb_changed) {
+		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_ID, fb_id ? crtc_id : 0);
 		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_FB_ID, fb_id);
+	}
+
+	if (plane->position_changed || plane->size_changed) {
+		uint32_t src_x = IGT_FIXED(plane->fb->src_x, 0); /* src_x */
+		uint32_t src_y = IGT_FIXED(plane->fb->src_y, 0); /* src_y */
+		uint32_t src_w = IGT_FIXED(plane->fb->src_w, 0); /* src_w */
+		uint32_t src_h = IGT_FIXED(plane->fb->src_h, 0); /* src_h */
+		int32_t crtc_x = plane->crtc_x;
+		int32_t crtc_y = plane->crtc_y;
+		uint32_t crtc_w = plane->crtc_w;
+		uint32_t crtc_h = plane->crtc_h;
 
 		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_SRC_X, src_x);
 		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_SRC_Y, src_y);
@@ -1610,18 +1578,15 @@ igt_atomic_prepare_plane_commit(igt_plane_t *plane, igt_output_t *output,
 		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_Y, crtc_y);
 		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_W, crtc_w);
 		igt_atomic_populate_plane_req(req, plane, IGT_PLANE_CRTC_H, crtc_h);
-
-		if (plane->rotation_changed)
-			igt_atomic_populate_plane_req(req, plane,
-				IGT_PLANE_ROTATION, plane->rotation);
-
 	}
 
+	if (plane->rotation_changed)
+		igt_atomic_populate_plane_req(req, plane,
+			IGT_PLANE_ROTATION, plane->rotation);
+
 	plane->fb_changed = false;
 	plane->position_changed = false;
 	plane->size_changed = false;
-
-	return;
 }
 
 

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