[Intel-gfx] [igt-dev] [PATCH i-g-t 2/2] tests/testdisplay.c: add support to test modes with aspect ratio

[Nautiyal, Ankit K]

From: Ankit Nautiyal <ankit.k.nautiyal at intel.com>

This patch adds the support to test the modes with aspect ratios.
If the kernel supports the aspect ratio capabilities, the modes
with aspect ratios are set one by one.

This test is a means to verify the drm patch series :Aspect ratio
support in DRM : https://patchwork.freedesktop.org/series/33984/

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
 tests/testdisplay.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 100 insertions(+), 4 deletions(-)

diff --git a/tests/testdisplay.c b/tests/testdisplay.c
index b0156c5..910e395 100644
--- a/tests/testdisplay.c
+++ b/tests/testdisplay.c
@@ -73,13 +73,22 @@
 #define Yb_OPT		 3
 #define Yf_OPT		 4
 
+#ifndef DRM_CLIENT_CAP_ASPECT_RATIO
+/**
+ * Taken from drm-uapi/drm.h
+ * DRM_CLIENT_CAP_ASPECT_RATIO
+ *
+ * If set to 1, the DRM core will expose aspect ratio to userspace
+ */
+#define DRM_CLIENT_CAP_ASPECT_RATIO	4
+#endif
 static int tio_fd;
 struct termios saved_tio;
 
 drmModeRes *resources;
 int drm_fd, modes;
 int test_all_modes = 0, test_preferred_mode = 0, force_mode = 0, test_plane,
-    test_stereo_modes;
+test_stereo_modes, test_aspect_ratio_modes = 0;
 uint64_t tiling = LOCAL_DRM_FORMAT_MOD_NONE;
 int sleep_between_modes = 5;
 int do_dpms = 0; /* This aliases to DPMS_ON */
@@ -443,6 +452,62 @@ set_stereo_mode(struct connector *c)
 	drmModeFreeConnector(c->connector);
 }
 
+static void
+set_aspect_ratio_mode(struct connector *c)
+{
+	int i, n;
+	uint32_t fb_id;
+	struct igt_fb fb_info = { };
+
+
+	if (specified_mode_num != -1)
+		n = 1;
+	else
+		n = c->connector->count_modes;
+
+	for (i = 0; i < n; i++) {
+		if (specified_mode_num == -1)
+			c->mode = c->connector->modes[i];
+
+		if (!c->mode_valid)
+			continue;
+
+		if (!(c->mode.flags & DRM_MODE_FLAG_PIC_AR_MASK))
+			continue;
+
+		igt_info("CRTC(%u): [%d]", c->crtc, i);
+		kmstest_dump_mode(&c->mode);
+		width = c->mode.hdisplay;
+		height = c->mode.vdisplay;
+
+		fb_id = igt_create_pattern_fb(drm_fd, width, height,
+				igt_bpp_depth_to_drm_format(bpp, depth),
+				tiling, &fb_info);
+		paint_output_info(c, &fb_info);
+		paint_color_key(&fb_info);
+
+		kmstest_dump_mode(&c->mode);
+		igt_warn_on_f(drmModeSetCrtc(drm_fd, c->crtc, fb_id, 0, 0, &c->id, 1, &c->mode),
+			      "failed to set mode (%dx%d@%dHz): %s\n", width, height, c->mode.vrefresh, strerror(errno));
+		if (qr_code) {
+			set_single();
+			pause();
+		} else if (sleep_between_modes)
+			sleep(sleep_between_modes);
+
+		if (do_dpms) {
+			kmstest_set_connector_dpms(drm_fd, c->connector,
+						   DRM_MODE_DPMS_OFF);
+			sleep(sleep_between_modes);
+			kmstest_set_connector_dpms(drm_fd, c->connector,
+						   DRM_MODE_DPMS_ON);
+		}
+
+		igt_remove_fb(drm_fd, &fb_info);
+	}
+	drmModeFreeEncoder(c->encoder);
+	drmModeFreeConnector(c->connector);
+}
 /*
  * Re-probe outputs and light up as many as possible.
  *
@@ -517,18 +582,39 @@ int update_display(bool probe)
 		}
 	}
 
+	if (test_aspect_ratio_modes) {
+		for (c = 0; c < resources->count_connectors; c++) {
+			struct connector *connector = &connectors[c];
+
+			connector->id = resources->connectors[c];
+			if (specified_disp_id != -1 &&
+			    connector->id != specified_disp_id)
+				continue;
+
+			connector_find_preferred_mode(connector->id,
+						      -1UL,
+						      specified_mode_num,
+						      connector, probe);
+			if (!connector->mode_valid)
+				continue;
+
+			set_aspect_ratio_mode(connector);
+		}
+	}
+
 	free(connectors);
 	drmModeFreeResources(resources);
 	return 1;
 }
 
-static char optstr[] = "3hiaf:s:d:p:mrto:j:y";
+static char optstr[] = "3hziaf:s:d:p:mrto:j:y";
 
 static void __attribute__((noreturn)) usage(char *name, char opt)
 {
 	igt_info("usage: %s [-hiasdpmtf]\n", name);
 	igt_info("\t-i\tdump info\n");
 	igt_info("\t-a\ttest all modes\n");
+	igt_info("\t-z\ttest aspect ratio modes\n");
 	igt_info("\t-s\t<duration>\tsleep between each mode test\n");
 	igt_info("\t-d\t<depth>\tbit depth of scanout buffer\n");
 	igt_info("\t-p\t<planew,h>,<crtcx,y>,<crtcw,h> test overlay plane\n");
@@ -637,6 +723,9 @@ int main(int argc, char **argv)
 		case '3':
 			test_stereo_modes = 1;
 			break;
+		case 'z':
+			test_aspect_ratio_modes = 1;
+			break;
 		case 'i':
 			opt_dump_info = true;
 			break;
@@ -716,7 +805,8 @@ int main(int argc, char **argv)
 		bpp = 32;
 
 	if (!test_all_modes && !force_mode && !test_preferred_mode &&
-	    specified_mode_num == -1 && !test_stereo_modes)
+	    specified_mode_num == -1 && !test_stereo_modes &&
+	    !test_aspect_ratio_modes)
 		test_all_modes = 1;
 
 	drm_fd = drm_open_driver(DRIVER_ANY);
@@ -727,6 +817,12 @@ int main(int argc, char **argv)
 		goto out_close;
 	}
 
+	if (test_aspect_ratio_modes &&
+	    drmSetClientCap(drm_fd, DRM_CLIENT_CAP_ASPECT_RATIO, 1) < 0) {
+		igt_warn("DRM_CLIENT_CAP_ASPECT_RATIO failed\n");
+		goto out_close;
+	}
+
 	if (opt_dump_info) {
 		dump_info();
 		goto out_close;
@@ -766,7 +862,7 @@ int main(int argc, char **argv)
 		goto out_stdio;
 	}
 
-	if (test_all_modes)
+	if (test_all_modes || test_aspect_ratio_modes)
 		goto out_stdio;
 
 	g_main_loop_run(mainloop);
-- 
2.7.4