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From e3c6e18e27f0d598b37e9be1795dbcb42f740071 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue, 13 Apr 2010 09:05:03 +0200
Subject: [PATCH 08/39] spice: add tablet support
Add support for the spice tablet interface. The tablet interface will
be registered (and then used by the spice client) as soon as a absolute
pointing device is available and used by the guest, i.e. you'll have to
configure your guest with '-usbdevice tablet'.
---
spice-display.c | 2 +-
spice-input.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++----
2 files changed, 93 insertions(+), 8 deletions(-)
diff --git a/spice-display.c b/spice-display.c
index 13a620e..a749e64 100644
--- a/spice-display.c
+++ b/spice-display.c
@@ -143,7 +143,7 @@ void qemu_spice_create_host_primary(SimpleSpiceDisplay *ssd)
surface.width = ds_get_width(ssd->ds);
surface.height = ds_get_height(ssd->ds);
surface.stride = -surface.width * 4;
- surface.mouse_mode = 0;
+ surface.mouse_mode = true;
surface.flags = 0;
surface.type = 0;
surface.mem = (intptr_t)ssd->buf;
diff --git a/spice-input.c b/spice-input.c
index 8f3deb4..5646ff9 100644
--- a/spice-input.c
+++ b/spice-input.c
@@ -1,5 +1,6 @@
#include <stdlib.h>
#include <stdio.h>
+#include <stdbool.h>
#include <string.h>
#include <spice.h>
@@ -48,9 +49,13 @@ static void kbd_leds(void *opaque, int ledstate)
/* mouse bits */
-typedef struct QemuSpiceMouse {
- SpiceMouseInstance sin;
-} QemuSpiceMouse;
+typedef struct QemuSpicePointer {
+ SpiceMouseInstance mouse;
+ SpiceTabletInstance tablet;
+ int width, height, x, y;
+ Notifier mouse_mode;
+ bool absolute;
+} QemuSpicePointer;
static void mouse_motion(SpiceMouseInstance *sin, int dx, int dy, int dz,
uint32_t buttons_state)
@@ -72,17 +77,97 @@ static const SpiceMouseInterface mouse_interface = {
.buttons = mouse_buttons,
};
+static void tablet_set_logical_size(SpiceTabletInstance* sin, int width, int height)
+{
+ QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
+
+ fprintf(stderr, "%s: %dx%d\n", __FUNCTION__, width, height);
+ if (height < 16)
+ height = 16;
+ if (width < 16)
+ width = 16;
+ pointer->width = width;
+ pointer->height = height;
+}
+
+static void tablet_position(SpiceTabletInstance* sin, int x, int y,
+ uint32_t buttons_state)
+{
+ QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
+
+ pointer->x = x * 0x7FFF / (pointer->width - 1);
+ pointer->y = y * 0x7FFF / (pointer->height - 1);
+ kbd_mouse_event(pointer->x, pointer->y, 0, buttons_state);
+}
+
+
+static void tablet_wheel(SpiceTabletInstance* sin, int wheel,
+ uint32_t buttons_state)
+{
+ QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
+
+ kbd_mouse_event(pointer->x, pointer->y, wheel, buttons_state);
+}
+
+static void tablet_buttons(SpiceTabletInstance *sin,
+ uint32_t buttons_state)
+{
+ QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
+
+ kbd_mouse_event(pointer->x, pointer->y, 0, buttons_state);
+}
+
+static const SpiceTabletInterface tablet_interface = {
+ .base.type = SPICE_INTERFACE_TABLET,
+ .base.description = "tablet",
+ .base.major_version = SPICE_INTERFACE_TABLET_MAJOR,
+ .base.minor_version = SPICE_INTERFACE_TABLET_MINOR,
+ .set_logical_size = tablet_set_logical_size,
+ .position = tablet_position,
+ .wheel = tablet_wheel,
+ .buttons = tablet_buttons,
+};
+
+static void mouse_mode_notifier(Notifier *notifier)
+{
+ QemuSpicePointer *pointer = container_of(notifier, QemuSpicePointer, mouse_mode);
+ bool is_absolute = kbd_mouse_is_absolute();
+ bool has_absolute = kbd_mouse_has_absolute();
+
+ fprintf(stderr, "%s: absolute pointer: %s%s\n", __FUNCTION__,
+ has_absolute ? "present" : "not available",
+ is_absolute ? "+active" : "");
+
+ if (pointer->absolute == is_absolute)
+ return;
+
+ if (is_absolute) {
+ fprintf(stderr, "%s: using absolute pointer (client mode)\n", __FUNCTION__);
+ spice_server_add_interface(spice_server, &pointer->tablet.base);
+ } else {
+ fprintf(stderr, "%s: using relative pointer (server mode)\n", __FUNCTION__);
+ spice_server_remove_interface(&pointer->tablet.base);
+ }
+ pointer->absolute = is_absolute;
+}
+
void qemu_spice_input_init(void)
{
QemuSpiceKbd *kbd;
- QemuSpiceMouse *mouse;
+ QemuSpicePointer *pointer;
kbd = qemu_mallocz(sizeof(*kbd));
kbd->sin.base.sif = &kbd_interface.base;
spice_server_add_interface(spice_server, &kbd->sin.base);
qemu_add_led_event_handler(kbd_leds, kbd);
- mouse = qemu_mallocz(sizeof(*mouse));
- mouse->sin.base.sif = &mouse_interface.base;
- spice_server_add_interface(spice_server, &mouse->sin.base);
+ pointer = qemu_mallocz(sizeof(*pointer));
+ pointer->mouse.base.sif = &mouse_interface.base;
+ pointer->tablet.base.sif = &tablet_interface.base;
+ spice_server_add_interface(spice_server, &pointer->mouse.base);
+
+ pointer->absolute = false;
+ pointer->mouse_mode.notify = mouse_mode_notifier;
+ qemu_add_mouse_mode_change_notifier(&pointer->mouse_mode);
+ mouse_mode_notifier(&pointer->mouse_mode);
}
--
1.7.2.3