Mercurial > sdl-ios-xcode
annotate src/audio/SDL_audiomem.c @ 753:b14fdadd8311
Date: Thu, 4 Dec 2003 07:48:40 +0200
From: "Mike Gorchak"
Subject: SDL/QNX6 new patch
Here in attachment my patch for the SDL/QNX6 again :) It contain non-crtitical/cosmetic fixes:
1. Fixed window centering at other than the first consoles.
2. Fixed window centering algorithm in case when window height or width are greater than the desktop resolution.
3. Fixed window positioning on other than the first consoles.
4. Fixed occasional input focus lost when switching to fullscreen.
5. Removed the Photon's default chroma color for the overlays, added RGB(12, 6, 12) color instead (very dark pink).
6. Added more checks to the YUV overlay code (fixed crashes during resolution mode switches).
7. Added support for Enter/Backspace keys in unicode mode (used by Maelstrom and by other games).
8. Fixed window restore/maximize function. It works, finally.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 10 Dec 2003 12:35:56 +0000 |
| parents | f6ffac90895c |
| children | b8d311d90021 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
297
f6ffac90895c
Updated copyright information for 2002
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
|
3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
1
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changeset
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Functions to allocate audio buffer memory, shareable across threads | |
| 29 (necessary because SDL audio emulates threads with fork() | |
| 30 */ | |
| 31 | |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
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changeset
|
32 #include <stdlib.h> |
| 0 | 33 #ifdef FORK_HACK |
| 34 #include <sys/types.h> | |
| 35 #include <sys/ipc.h> | |
| 36 #include <sys/shm.h> | |
| 37 #include <stddef.h> | |
| 38 #endif | |
| 39 | |
| 40 #include "SDL_audiomem.h" | |
| 41 | |
| 42 /* Allocate memory that will be shared between threads (freed on exit) */ | |
| 43 void *SDL_AllocAudioMem(int size) | |
| 44 { | |
| 45 void *chunk; | |
| 46 | |
| 47 #ifdef FORK_HACK | |
| 48 int semid; | |
| 49 | |
| 50 /* Create and get the address of a shared memory segment */ | |
| 51 semid = shmget(IPC_PRIVATE, size, (IPC_CREAT|0600)); | |
| 52 if ( semid < 0 ) { | |
| 53 return(NULL); | |
| 54 } | |
| 55 chunk = shmat(semid, NULL, 0); | |
| 56 | |
| 57 /* Set the segment for deletion when it is detatched */ | |
| 58 shmctl(semid, IPC_RMID, NULL); /* Delets semid if shmat() fails */ | |
| 59 #else | |
| 60 chunk = malloc(size); | |
| 61 #endif | |
| 62 return((void *)chunk); | |
| 63 } | |
| 64 | |
| 65 void SDL_FreeAudioMem(void *chunk) | |
| 66 { | |
| 67 #ifdef FORK_HACK | |
| 68 shmdt(chunk); | |
| 69 #else | |
| 70 free(chunk); | |
| 71 #endif | |
| 72 } |