tests/flip_test: test interaction with panning

Since panning with set_crtc is synchronous, we need to stall for any
outstanding pageflips. This new testcase exercise that code. Unfortunately
we still need eyes to check whether we don't loose the offset :(

diff --git a/tests/flip_test.c b/tests/flip_test.c
index b9e55c1..57e4a6b 100644 (file)
--- a/tests/flip_test.c
+++ b/tests/flip_test.c
@@ -43,6 +43,7 @@
 
 #define TEST_DPMS              (1 << 0)
 #define TEST_WITH_DUMMY_LOAD   (1 << 1)
+#define TEST_PAN               (1 << 2)
 
 drmModeRes *resources;
 int drm_fd;
@@ -340,6 +341,9 @@ static void flip_mode(struct test_output *o, int crtc, int duration)
        width = o->mode.hdisplay;
        height = o->mode.vdisplay;
 
+       if (o->flags & TEST_PAN)
+               width *= 2;
+
        o->fb_ids[0] = kmstest_create_fb(drm_fd, width, height, bpp, depth,
                                         false, &o->fb_info[0],
                                         paint_flip_mode, (void *)false);
@@ -407,6 +411,21 @@ static void flip_mode(struct test_output *o, int crtc, int duration)
                        break;
                }
 
+               /* pan before the flip completes */
+               if (o->flags & TEST_PAN) {
+                       int x_ofs = o->count * 10 > o->mode.hdisplay ? o->mode.hdisplay :
+                               o->count * 10;
+
+                       if (drmModeSetCrtc(drm_fd, o->crtc, o->fb_ids[o->current_fb_id],
+                                          x_ofs, 0,
+                                          &o->id, 1, &o->mode)) {
+                               fprintf(stderr, "failed to pan (%dx%d@%dHz): %s\n",
+                                       width, height, o->mode.vrefresh,
+                                       strerror(errno));
+                               exit(7);
+                       }
+               }
+
                drmHandleEvent(drm_fd, &evctx);
        }
 
@@ -477,6 +496,7 @@ int main(int argc, char **argv)
                { 5, 0 , "plain flip" },
                { 30, TEST_DPMS, "flip vs dpms" },
                { 30, TEST_DPMS | TEST_WITH_DUMMY_LOAD, "delayed flip vs. dpms" },
+               { 5, TEST_PAN, "flip vs panning" },
        };
        int i;