From bee70901ecc0e37b48ca72515031f2aa8d363018 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 18 Apr 2023 17:05:41 +1000
Subject: tools: add rotation support to debug-events and debug-gui

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
 tools/libinput-debug-events.man   |  3 +++
 tools/shared.c                    | 11 +++++++++++
 tools/shared.h                    |  5 ++++-
 tools/test_tool_option_parsing.py |  1 +
 4 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/tools/libinput-debug-events.man b/tools/libinput-debug-events.man
index 849765d1..2eeefd4b 100644
--- a/tools/libinput-debug-events.man
+++ b/tools/libinput-debug-events.man
@@ -119,6 +119,9 @@ This only applies to the custom profile.
 .TP 8
 .B \-\-set\-tap\-map=[lrm|lmr]
 Set button mapping for tapping
+.TP 8
+.B \-\-set\-rotation\-angle=<degrees>
+Set the rotation angle in degrees (0 to 360).
 .SH NOTES
 .PP
 Events shown by this tool may not correspond to the events seen by a
diff --git a/tools/shared.c b/tools/shared.c
index 7a730278..cc8396a7 100644
--- a/tools/shared.c
+++ b/tools/shared.c
@@ -315,6 +315,14 @@ tools_parse_option(int option,
 			return 1;
 		}
 		break;
+	case OPT_ROTATION_ANGLE:
+		if (!optarg)
+			return 1;
+
+		if (!safe_atou(optarg, &options->angle)) {
+			fprintf(stderr, "Invalid --set-rotation-angle value\n");
+			return 1;
+		}
 	}
 	return 0;
 }
@@ -520,6 +528,9 @@ tools_device_apply_config(struct libinput_device *device,
 		libinput_device_config_accel_apply(device, config);
 		libinput_config_accel_destroy(config);
 	}
+
+	if (options->angle != 0)
+		libinput_device_config_rotation_set_angle(device, options->angle % 360);
 }
 
 static char*
diff --git a/tools/shared.h b/tools/shared.h
index 825a51f5..45230741 100644
--- a/tools/shared.h
+++ b/tools/shared.h
@@ -62,6 +62,7 @@ enum configuration_options {
 	OPT_CUSTOM_POINTS,
 	OPT_CUSTOM_STEP,
 	OPT_CUSTOM_TYPE,
+	OPT_ROTATION_ANGLE,
 };
 
 #define CONFIGURATION_OPTIONS \
@@ -93,7 +94,8 @@ enum configuration_options {
 	{ "apply-to",                  required_argument, 0, OPT_APPLY_TO },\
 	{ "set-custom-points",         required_argument, 0, OPT_CUSTOM_POINTS },\
 	{ "set-custom-step",           required_argument, 0, OPT_CUSTOM_STEP },\
-	{ "set-custom-type",           required_argument, 0, OPT_CUSTOM_TYPE }
+	{ "set-custom-type",           required_argument, 0, OPT_CUSTOM_TYPE },\
+	{ "set-rotation-angle",        required_argument, 0, OPT_ROTATION_ANGLE }
 
 enum tools_backend {
 	BACKEND_NONE,
@@ -124,6 +126,7 @@ struct tools_options {
 	double custom_step;
 	size_t custom_npoints;
 	double *custom_points;
+	unsigned int angle;
 };
 
 void tools_init_options(struct tools_options *options);
diff --git a/tools/test_tool_option_parsing.py b/tools/test_tool_option_parsing.py
index c63d85e8..303e3840 100755
--- a/tools/test_tool_option_parsing.py
+++ b/tools/test_tool_option_parsing.py
@@ -222,6 +222,7 @@ options = {
     # options with a range (and increment)
     "ranges": {
         "set-speed": (-1.0, +1.0, 0.1),
+        "set-rotation": (0, 360, 10),
     },
 }
 
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