Mercurial > sdl-ios-xcode

annotate src/video/x11/SDL_x11dyn.h @ 2661:d38309be5178 gsoc2008_audio_resampling

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out.
author Aaron Wishnick <schnarf@gmail.com>
date Wed, 02 Jul 2008 08:04:50 +0000
parents c7bcf84ba1b9
children 44e49d3fa6cf
rev   line source
1950
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
3 Copyright (C) 1997-2004 Sam Lantinga
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
6 modify it under the terms of the GNU Library General Public
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8 version 2 of the License, or (at your option) any later version.
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13 Library General Public License for more details.
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
15 You should have received a copy of the GNU Library General Public
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 Sam Lantinga
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 slouken@libsdl.org
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 */
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
22 #include "SDL_config.h"
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
24 #ifndef _SDL_x11dyn_h
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
25 #define _SDL_x11dyn_h
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
26
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
27 #include <X11/Xlib.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
28 #include <X11/Xutil.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
29 #include <X11/Xatom.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
30 #include <X11/Xlibint.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31 #include <X11/Xproto.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
32
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
33 #include "../Xext/extensions/Xext.h"
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
34 #include "../Xext/extensions/extutil.h"
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
35
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36 #ifndef NO_SHARED_MEMORY
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
37 #include <sys/ipc.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38 #include <sys/shm.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
39 #include <X11/extensions/XShm.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
40 #endif
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
41
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
42 #if SDL_VIDEO_DRIVER_X11_XRANDR
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
43 #include <X11/extensions/Xrandr.h>
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
44 #endif
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
45
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
46 /*
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
47 * When using the "dynamic X11" functionality, we duplicate all the Xlib
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
48 * symbols that would be referenced by SDL inside of SDL itself.
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
49 * These duplicated symbols just serve as passthroughs to the functions
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
50 * in Xlib, that was dynamically loaded.
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
51 *
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
52 * This allows us to use Xlib as-is when linking against it directly, but
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
53 * also handles all the strange cases where there was code in the Xlib
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
54 * headers that may or may not exist or vary on a given platform.
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
55 */
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
56 #ifdef __cplusplus
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
57 extern "C"
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
58 {
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
59 #endif
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
60
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
61 /* evil function signatures... */
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
62 typedef Bool(*SDL_X11_XESetWireToEventRetType) (Display *, XEvent *,
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
63 xEvent *);
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
64 typedef int (*SDL_X11_XSynchronizeRetType) (Display *);
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
65 typedef Status(*SDL_X11_XESetEventToWireRetType) (Display *, XEvent *,
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
66 xEvent *);
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
67
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
68 int SDL_X11_LoadSymbols(void);
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
69 void SDL_X11_UnloadSymbols(void);
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
70
2325
c7bcf84ba1b9 Next version of internationalized input for X11. On my machine (famous last words :-) with a US English keyboard and locale I can compose ` and e and get a text
Bob Pendleton <bob@pendleton.com>
parents: 1950
diff changeset
71 /* That's really annoying...make these function pointers no matter what. */
1950
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
72 #ifdef X_HAVE_UTF8_STRING
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
73 extern XIC(*pXCreateIC) (XIM, ...);
2325
c7bcf84ba1b9 Next version of internationalized input for X11. On my machine (famous last words :-) with a US English keyboard and locale I can compose ` and e and get a text
Bob Pendleton <bob@pendleton.com>
parents: 1950
diff changeset
74 extern char *(*pXGetICValues) (XIC, ...);
1950
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
75 #endif
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
76
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
77 /* These SDL_X11_HAVE_* flags are here whether you have dynamic X11 or not. */
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
78 #define SDL_X11_MODULE(modname) extern int SDL_X11_HAVE_##modname;
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
79 #define SDL_X11_SYM(rc,fn,params,args,ret)
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
80 #include "SDL_x11sym.h"
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
81 #undef SDL_X11_MODULE
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
82 #undef SDL_X11_SYM
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
83
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
84
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
85 #ifdef __cplusplus
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
86 }
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
87 #endif
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
88
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
89 #endif /* !defined _SDL_x11dyn_h */
a344e42bce3b Started work on the new X11 driver.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
90 /* vi: set ts=4 sw=4 expandtab: */