104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#ifdef SDL_AUDIO_DRIVER_NGAGE
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#include "../SDL_sysaudio.h"
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#include "SDL_ngageaudio.h"
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static SDL_AudioDevice *devptr = NULL;
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SDL_AudioDevice *NGAGE_GetAudioDeviceAddr()
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{
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return devptr;
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}
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static bool NGAGEAUDIO_OpenDevice(SDL_AudioDevice *device)
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{
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SDL_PrivateAudioData *phdata = SDL_calloc(1, sizeof(SDL_PrivateAudioData));
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if (!phdata) {
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SDL_OutOfMemory();
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return false;
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}
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device->hidden = phdata;
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phdata->buffer = SDL_calloc(1, device->buffer_size);
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if (!phdata->buffer) {
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SDL_OutOfMemory();
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SDL_free(phdata);
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return false;
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}
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devptr = device;
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// Since the phone can change the sample rate during a phone call,
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// we set the sample rate to 8KHz to be safe. Even though it
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// might be possible to adjust the sample rate dynamically, it's
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// not supported by the current implementation.
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device->spec.format = SDL_AUDIO_S16LE;
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device->spec.channels = 1;
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device->spec.freq = 8000;
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SDL_UpdatedAudioDeviceFormat(device);
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return true;
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}
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static Uint8 *NGAGEAUDIO_GetDeviceBuf(SDL_AudioDevice *device, int *buffer_size)
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{
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SDL_PrivateAudioData *phdata = (SDL_PrivateAudioData *)device->hidden;
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if (!phdata) {
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*buffer_size = 0;
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return 0;
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}
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*buffer_size = device->buffer_size;
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return phdata->buffer;
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}
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static void NGAGEAUDIO_CloseDevice(SDL_AudioDevice *device)
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{
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if (device->hidden) {
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SDL_free(device->hidden->buffer);
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SDL_free(device->hidden);
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}
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return;
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}
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static bool NGAGEAUDIO_Init(SDL_AudioDriverImpl *impl)
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{
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impl->OpenDevice = NGAGEAUDIO_OpenDevice;
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impl->GetDeviceBuf = NGAGEAUDIO_GetDeviceBuf;
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impl->CloseDevice = NGAGEAUDIO_CloseDevice;
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impl->ProvidesOwnCallbackThread = true;
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impl->OnlyHasDefaultPlaybackDevice = true;
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return true;
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}
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AudioBootStrap NGAGEAUDIO_bootstrap = { "N-Gage", "N-Gage audio driver", NGAGEAUDIO_Init, false };
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#endif // SDL_AUDIO_DRIVER_NGAGE
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