From 9cfa7ab939f27ffca845ffb9a28c3fa1856c92e7 Mon Sep 17 00:00:00 2001
From: Philippe Voinov <philippevoinov@gmail.com>
Date: Fri, 5 May 2017 15:39:52 +0200
Subject: ui: Support non-zero minimum values for absolute input axes

This patch refactors ui/input.c to support absolute axis
minimum values other than 0. All dependent calls to qemu_input_queue_abs
have been updated to explicitly supply 0 as the axis minimum value.

Signed-off-by: Philippe Voinov <philippevoinov@gmail.com>
Message-id: 20170505133952.29885-1-philippevoinov@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 include/ui/input.h | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'include/ui')

diff --git a/include/ui/input.h b/include/ui/input.h
index d06a12dd4c..3cfd0f3363 100644
--- a/include/ui/input.h
+++ b/include/ui/input.h
@@ -8,7 +8,8 @@
 #define INPUT_EVENT_MASK_REL   (1<<INPUT_EVENT_KIND_REL)
 #define INPUT_EVENT_MASK_ABS   (1<<INPUT_EVENT_KIND_ABS)
 
-#define INPUT_EVENT_ABS_SIZE   0x8000
+#define INPUT_EVENT_ABS_MIN    0x0000
+#define INPUT_EVENT_ABS_MAX    0x7FFF
 
 typedef struct QemuInputHandler QemuInputHandler;
 typedef struct QemuInputHandlerState QemuInputHandlerState;
@@ -54,12 +55,14 @@ void qemu_input_update_buttons(QemuConsole *src, uint32_t *button_map,
                                uint32_t button_old, uint32_t button_new);
 
 bool qemu_input_is_absolute(void);
-int qemu_input_scale_axis(int value, int size_in, int size_out);
+int qemu_input_scale_axis(int value,
+                          int min_in, int max_in,
+                          int min_out, int max_out);
 InputEvent *qemu_input_event_new_move(InputEventKind kind,
                                       InputAxis axis, int value);
 void qemu_input_queue_rel(QemuConsole *src, InputAxis axis, int value);
-void qemu_input_queue_abs(QemuConsole *src, InputAxis axis,
-                          int value, int size);
+void qemu_input_queue_abs(QemuConsole *src, InputAxis axis, int value,
+                          int min_in, int max_in);
 
 void qemu_input_check_mode_change(void);
 void qemu_add_mouse_mode_change_notifier(Notifier *notify);
-- 
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