src/audio/fusionsound/SDL_fsaudio.c
author Couriersud <couriersud@arcor.de>
Mon, 03 Aug 2009 18:07:31 +0000
changeset 3230 816a7a65a59a
parent 2947 fec0db6c44b7
child 3697 f7b03b6838cb
permissions -rw-r--r--
Fixed compiling SDL_fsaudio.c against fusionsound 1.0.0
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2009 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* Allow access to a raw mixing buffer */
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#include <unistd.h>
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#include "SDL_timer.h"
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#include "SDL_audio.h"
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#include "../SDL_audiomem.h"
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#include "../SDL_audio_c.h"
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#include "SDL_fsaudio.h"
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#include <fusionsound/fusionsound_version.h>
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//#define SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC "libfusionsound.so"
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#ifdef SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC
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#include "SDL_name.h"
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#include "SDL_loadso.h"
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#else
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#define SDL_NAME(X)	X
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#endif
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#if (FUSIONSOUND_MAJOR_VERSION == 1) && (FUSIONSOUND_MINOR_VERSION < 1)
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typedef DFBResult DirectResult;
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#endif
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/* The tag name used by fusionsoundc audio */
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#define SDL_FS_DRIVER_NAME         "fusionsound"
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/* Buffers to use - more than 2 gives a lot of latency */
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#define FUSION_BUFFERS				(2)
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#ifdef SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC
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static const char *fs_library = SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC;
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static void *fs_handle = NULL;
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static DirectResult (*SDL_NAME(FusionSoundInit)) (int *argc, char *(*argv[]));
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static DirectResult (*SDL_NAME(FusionSoundCreate)) (IFusionSound **
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                                                   ret_interface);
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#define SDL_FS_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
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static struct
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{
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    const char *name;
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    void **func;
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} fs_functions[] = {
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/* *INDENT-OFF* */
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    SDL_FS_SYM(FusionSoundInit),
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    SDL_FS_SYM(FusionSoundCreate),
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/* *INDENT-ON* */
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};
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#undef SDL_FS_SYM
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static void
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UnloadFusionSoundLibrary()
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{
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    if (fs_handle != NULL) {
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        SDL_UnloadObject(fs_handle);
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        fs_handle = NULL;
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    }
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}
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static int
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LoadFusionSoundLibrary(void)
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{
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    int i, retval = -1;
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    if (fs_handle == NULL) {
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        fs_handle = SDL_LoadObject(fs_library);
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        if (fs_handle != NULL) {
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            retval = 0;
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            for (i = 0; i < SDL_arraysize(fs_functions); ++i) {
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                *fs_functions[i].func =
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                    SDL_LoadFunction(fs_handle, fs_functions[i].name);
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                if (!*fs_functions[i].func) {
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                    retval = -1;
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                    UnloadFusionSoundLibrary();
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                    break;
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                }
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            }
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        }
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    }
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    return retval;
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}
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#else
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static void
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UnloadFusionSoundLibrary()
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{
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    return;
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}
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static int
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LoadFusionSoundLibrary(void)
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{
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    return 0;
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}
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#endif /* SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC */
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   128
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   129
/* This function waits until it is possible to write a full sound buffer */
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   130
static void
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   131
SDL_FS_WaitDevice(_THIS)
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   132
{
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   133
    this->hidden->stream->Wait(this->hidden->stream,
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   134
                               this->hidden->mixsamples);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   135
}
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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parents:
diff changeset
   136
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   137
static void
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   138
SDL_FS_PlayDevice(_THIS)
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   139
{
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   140
    DirectResult ret;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   141
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   142
    ret = this->hidden->stream->Write(this->hidden->stream,
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   143
                                      this->hidden->mixbuf,
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   144
                                      this->hidden->mixsamples);
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   145
    /* If we couldn't write, assume fatal error for now */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   146
    if (ret) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   147
        this->enabled = 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   148
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   149
#ifdef DEBUG_AUDIO
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   150
    fprintf(stderr, "Wrote %d bytes of audio data\n", this->hidden->mixlen);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   151
#endif
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   152
}
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   153
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   154
static void
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   155
SDL_FS_WaitDone(_THIS)
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   156
{
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   157
    this->hidden->stream->Wait(this->hidden->stream,
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   158
                               this->hidden->mixsamples * FUSION_BUFFERS);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   159
}
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   160
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   161
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   162
static Uint8 *
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   163
SDL_FS_GetDeviceBuf(_THIS)
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   164
{
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   165
    return (this->hidden->mixbuf);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   166
}
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   167
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   168
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   169
static void
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   170
SDL_FS_CloseDevice(_THIS)
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   171
{
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   172
    if (this->hidden != NULL) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   173
        if (this->hidden->mixbuf != NULL) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   174
            SDL_FreeAudioMem(this->hidden->mixbuf);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   175
            this->hidden->mixbuf = NULL;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   176
        }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   177
        if (this->hidden->stream) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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   178
            this->hidden->stream->Release(this->hidden->stream);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   179
            this->hidden->stream = NULL;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   180
        }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   181
        if (this->hidden->fs) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   182
            this->hidden->fs->Release(this->hidden->fs);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   183
            this->hidden->fs = NULL;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   184
        }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   185
        SDL_free(this->hidden);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   186
        this->hidden = NULL;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   187
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   188
}
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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parents:
diff changeset
   189
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   190
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   191
static int
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   192
SDL_FS_OpenDevice(_THIS, const char *devname, int iscapture)
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   193
{
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   194
    int bytes;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   195
    SDL_AudioFormat test_format = 0, format = 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   196
    FSSampleFormat fs_format;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   197
    FSStreamDescription desc;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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parents:
diff changeset
   198
    DirectResult ret;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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parents:
diff changeset
   199
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   200
    /* Initialize all variables that we clean on shutdown */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   201
    this->hidden = (struct SDL_PrivateAudioData *)
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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parents:
diff changeset
   202
        SDL_malloc((sizeof *this->hidden));
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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parents:
diff changeset
   203
    if (this->hidden == NULL) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   204
        SDL_OutOfMemory();
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   205
        return 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   206
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   207
    SDL_memset(this->hidden, 0, (sizeof *this->hidden));
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   208
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   209
    /* Try for a closest match on audio format */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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diff changeset
   210
    for (test_format = SDL_FirstAudioFormat(this->spec.format);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   211
         !format && test_format;) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   212
#ifdef DEBUG_AUDIO
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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parents:
diff changeset
   213
        fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
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parents:
diff changeset
   214
#endif
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   215
        switch (test_format) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   216
        case AUDIO_U8:
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   217
            fs_format = FSSF_U8;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   218
            bytes = 1;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   219
            format = 1;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   220
            break;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   221
        case AUDIO_S16SYS:
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   222
            fs_format = FSSF_S16;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   223
            bytes = 2;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   224
            format = 1;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   225
            break;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   226
        case AUDIO_S32SYS:
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   227
            fs_format = FSSF_S32;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   228
            bytes = 4;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   229
            format = 1;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   230
            break;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   231
        case AUDIO_F32SYS:
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   232
            fs_format = FSSF_FLOAT;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   233
            bytes = 4;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   234
            format = 1;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   235
            break;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   236
        default:
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   237
            format = 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   238
            break;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   239
        }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   240
        if (!format) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   241
            test_format = SDL_NextAudioFormat();
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   242
        }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   243
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   244
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   245
    if (format == 0) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   246
        SDL_FS_CloseDevice(this);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   247
        SDL_SetError("Couldn't find any hardware audio formats");
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   248
        return 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   249
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   250
    this->spec.format = test_format;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   251
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   252
    /* Retrieve the main sound interface. */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   253
    ret = SDL_NAME(FusionSoundCreate) (&this->hidden->fs);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   254
    if (ret) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   255
        SDL_FS_CloseDevice(this);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   256
        SDL_SetError("Unable to initialize FusionSound: %d", ret);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   257
        return 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   258
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   259
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   260
    this->hidden->mixsamples = this->spec.size / bytes / this->spec.channels;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   261
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   262
    /* Fill stream description. */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   263
    desc.flags = FSSDF_SAMPLERATE | FSSDF_BUFFERSIZE |
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   264
        FSSDF_CHANNELS | FSSDF_SAMPLEFORMAT | FSSDF_PREBUFFER;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   265
    desc.samplerate = this->spec.freq;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   266
    desc.buffersize = this->spec.size * FUSION_BUFFERS;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   267
    desc.channels = this->spec.channels;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   268
    desc.prebuffer = 10;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   269
    desc.sampleformat = fs_format;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   270
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   271
    ret =
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   272
        this->hidden->fs->CreateStream(this->hidden->fs, &desc,
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   273
                                       &this->hidden->stream);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   274
    if (ret) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   275
        SDL_FS_CloseDevice(this);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   276
        SDL_SetError("Unable to create FusionSoundStream: %d", ret);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   277
        return 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   278
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   279
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   280
    /* See what we got */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   281
    desc.flags = FSSDF_SAMPLERATE | FSSDF_BUFFERSIZE |
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   282
        FSSDF_CHANNELS | FSSDF_SAMPLEFORMAT;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   283
    ret = this->hidden->stream->GetDescription(this->hidden->stream, &desc);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   284
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   285
    this->spec.freq = desc.samplerate;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   286
    this->spec.size =
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   287
        desc.buffersize / FUSION_BUFFERS * bytes * desc.channels;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   288
    this->spec.channels = desc.channels;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   289
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   290
    /* Calculate the final parameters for this audio specification */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   291
    SDL_CalculateAudioSpec(&this->spec);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   292
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   293
    /* Allocate mixing buffer */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   294
    this->hidden->mixlen = this->spec.size;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   295
    this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   296
    if (this->hidden->mixbuf == NULL) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   297
        SDL_FS_CloseDevice(this);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   298
        SDL_OutOfMemory();
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   299
        return 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   300
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   301
    SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   302
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   303
    /* We're ready to rock and roll. :-) */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   304
    return 1;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   305
}
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   306
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   307
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   308
static void
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   309
SDL_FS_Deinitialize(void)
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   310
{
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   311
    UnloadFusionSoundLibrary();
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   312
}
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   313
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   314
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   315
static int
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   316
SDL_FS_Init(SDL_AudioDriverImpl * impl)
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   317
{
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   318
    if (LoadFusionSoundLibrary() < 0) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   319
        return 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   320
    } else {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   321
        DirectResult ret;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   322
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   323
        ret = SDL_NAME(FusionSoundInit) (NULL, NULL);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   324
        if (ret) {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   325
            UnloadFusionSoundLibrary();
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   326
            SDL_SetError
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   327
                ("FusionSound: SDL_FS_init failed (FusionSoundInit: %d)",
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   328
                 ret);
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   329
            return 0;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   330
        }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   331
    }
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   332
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   333
    /* Set the function pointers */
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   334
    impl->OpenDevice = SDL_FS_OpenDevice;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   335
    impl->PlayDevice = SDL_FS_PlayDevice;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   336
    impl->WaitDevice = SDL_FS_WaitDevice;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   337
    impl->GetDeviceBuf = SDL_FS_GetDeviceBuf;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   338
    impl->CloseDevice = SDL_FS_CloseDevice;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   339
    impl->WaitDone = SDL_FS_WaitDone;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   340
    impl->Deinitialize = SDL_FS_Deinitialize;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   341
    impl->OnlyHasDefaultOutputDevice = 1;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   342
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   343
    return 1;
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   344
}
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   345
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   346
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   347
AudioBootStrap FUSIONSOUND_bootstrap = {
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   348
    SDL_FS_DRIVER_NAME, "FusionSound", SDL_FS_Init, 0
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   349
};
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   350
fec0db6c44b7 Date: Thu, 01 Jan 2009 21:32:12 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   351
/* vi: set ts=4 sw=4 expandtab: */