annotate src/thread/pth/SDL_sysmutex.c @ 2842:97ba0be8b565

Date: Sat, 06 Dec 2008 15:27:00 +0100 From: Couriersud Subject: SDL: Relative mouse movements The patch below will reenable processing of relative mouse movements. The DirectFB drivers generates those in "grabbed" mode. These ensure, that even in fullscreen mode relative movements are reported. SDLMAME depends on this for games with trackballs. Looking at the code I ask myself whether relative movements should be handled in the drivers (x11, directfb). Both x11 and directfb are able to report relative movements. This would leave it to the driver to use the most appropriate method for relative movements when at the border of a fullscreen window or being "grabbed".
author Sam Lantinga <slouken@libsdl.org>
date Sat, 06 Dec 2008 17:50:50 +0000
parents c121d94672cb
children 99210400e8b9
rev   line source
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
1 /*
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2 SDL - Simple DirectMedia Layer
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
3 Copyright (C) 1997-2006 Sam Lantinga
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
4
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
5 This library is free software; you can redistribute it and/or
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
6 modify it under the terms of the GNU Lesser General Public
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
7 License as published by the Free Software Foundation; either
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
9
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
10 This library is distributed in the hope that it will be useful,
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
13 Lesser General Public License for more details.
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
14
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
15 You should have received a copy of the GNU Lesser General Public
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
16 License along with this library; if not, write to the Free Software
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
18
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
19 Sam Lantinga
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
20 slouken@libsdl.org
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
21 */
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
22 #include "SDL_config.h"
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
23
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
24 /*
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
25 * GNU pth mutexes
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
26 *
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
27 * Patrice Mandin
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
28 */
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
29
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
30 #include <pth.h>
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
32 #include "SDL_mutex.h"
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
33 #include "SDL_sysmutex_c.h"
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
34
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
35 /* Create a mutex */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
36 SDL_mutex *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
37 SDL_CreateMutex(void)
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
39 SDL_mutex *mutex;
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
40
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
41 /* Allocate mutex memory */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
42 mutex = (SDL_mutex *) SDL_malloc(sizeof(*mutex));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
43 if (mutex) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
44 /* Create the mutex, with initial value signaled */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
45 if (!pth_mutex_init(&(mutex->mutexpth_p))) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
46 SDL_SetError("Couldn't create mutex");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
47 SDL_free(mutex);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
48 mutex = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
49 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
50 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
51 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
52 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
53 return (mutex);
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
54 }
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
55
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
56 /* Free the mutex */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
57 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
58 SDL_DestroyMutex(SDL_mutex * mutex)
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
59 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
60 if (mutex) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
61 SDL_free(mutex);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
62 }
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
63 }
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
64
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
65 /* Lock the mutex */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
66 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
67 SDL_mutexP(SDL_mutex * mutex)
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
68 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
69 if (mutex == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
70 SDL_SetError("Passed a NULL mutex");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
71 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
72 }
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
73
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
74 pth_mutex_acquire(&(mutex->mutexpth_p), FALSE, NULL);
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
75
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
76 return (0);
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
77 }
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
78
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
79 /* Unlock the mutex */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
80 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
81 SDL_mutexV(SDL_mutex * mutex)
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
82 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
83 if (mutex == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
84 SDL_SetError("Passed a NULL mutex");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
85 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
86 }
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
87
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
88 pth_mutex_release(&(mutex->mutexpth_p));
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
89
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
90 return (0);
329
1d74ddc90cb2 Patrice's fixes for GNU Pthread support
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
91 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
92
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
93 /* vi: set ts=4 sw=4 expandtab: */