keep the PID file locked for the lifetime of the process
[qemu.git] / ui / spice-display.h
1 /*
2 * Copyright (C) 2010 Red Hat, Inc.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 or
7 * (at your option) version 3 of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include <spice/ipc_ring.h>
19 #include <spice/enums.h>
20 #include <spice/qxl_dev.h>
21
22 #include "qemu-thread.h"
23 #include "console.h"
24 #include "pflib.h"
25 #include "sysemu.h"
26
27 #define NUM_MEMSLOTS 8
28 #define MEMSLOT_GENERATION_BITS 8
29 #define MEMSLOT_SLOT_BITS 8
30
31 #define MEMSLOT_GROUP_HOST 0
32 #define MEMSLOT_GROUP_GUEST 1
33 #define NUM_MEMSLOTS_GROUPS 2
34
35 #define NUM_SURFACES 1024
36
37 /*
38 * Internal enum to differenciate between options for
39 * io calls that have a sync (old) version and an _async (new)
40 * version:
41 * QXL_SYNC: use the old version
42 * QXL_ASYNC: use the new version and make sure there are no two
43 * happening at the same time. This is used for guest initiated
44 * calls
45 */
46 typedef enum qxl_async_io {
47 QXL_SYNC,
48 QXL_ASYNC,
49 } qxl_async_io;
50
51 typedef struct SimpleSpiceDisplay SimpleSpiceDisplay;
52 typedef struct SimpleSpiceUpdate SimpleSpiceUpdate;
53
54 struct SimpleSpiceDisplay {
55 DisplayState *ds;
56 void *buf;
57 int bufsize;
58 QXLWorker *worker;
59 QXLInstance qxl;
60 uint32_t unique;
61 QemuPfConv *conv;
62
63 QXLRect dirty;
64 int notify;
65 int running;
66
67 /*
68 * All struct members below this comment can be accessed from
69 * both spice server and qemu (iothread) context and any access
70 * to them must be protected by the lock.
71 */
72 QemuMutex lock;
73 SimpleSpiceUpdate *update;
74 QEMUCursor *cursor;
75 int mouse_x, mouse_y;
76 };
77
78 struct SimpleSpiceUpdate {
79 QXLDrawable drawable;
80 QXLImage image;
81 QXLCommandExt ext;
82 uint8_t *bitmap;
83 };
84
85 int qemu_spice_rect_is_empty(const QXLRect* r);
86 void qemu_spice_rect_union(QXLRect *dest, const QXLRect *r);
87
88 void qemu_spice_destroy_update(SimpleSpiceDisplay *sdpy, SimpleSpiceUpdate *update);
89 void qemu_spice_create_host_memslot(SimpleSpiceDisplay *ssd);
90 void qemu_spice_create_host_primary(SimpleSpiceDisplay *ssd);
91 void qemu_spice_destroy_host_primary(SimpleSpiceDisplay *ssd);
92 void qemu_spice_vm_change_state_handler(void *opaque, int running,
93 RunState state);
94 void qemu_spice_display_init_common(SimpleSpiceDisplay *ssd, DisplayState *ds);
95
96 void qemu_spice_display_update(SimpleSpiceDisplay *ssd,
97 int x, int y, int w, int h);
98 void qemu_spice_display_resize(SimpleSpiceDisplay *ssd);
99 void qemu_spice_display_refresh(SimpleSpiceDisplay *ssd);
100
101 void qemu_spice_add_memslot(SimpleSpiceDisplay *ssd, QXLDevMemSlot *memslot,
102 qxl_async_io async);
103 void qemu_spice_del_memslot(SimpleSpiceDisplay *ssd, uint32_t gid,
104 uint32_t sid);
105 void qemu_spice_create_primary_surface(SimpleSpiceDisplay *ssd, uint32_t id,
106 QXLDevSurfaceCreate *surface,
107 qxl_async_io async);
108 void qemu_spice_destroy_primary_surface(SimpleSpiceDisplay *ssd,
109 uint32_t id, qxl_async_io async);
110 void qemu_spice_wakeup(SimpleSpiceDisplay *ssd);
111 void qemu_spice_start(SimpleSpiceDisplay *ssd);
112 void qemu_spice_stop(SimpleSpiceDisplay *ssd);