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-rw-r--r--Alc/backends/sdl2.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/Alc/backends/sdl2.c b/Alc/backends/sdl2.c
deleted file mode 100644
index 3495e6bf..00000000
--- a/Alc/backends/sdl2.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/**
- * OpenAL cross platform audio library
- * Copyright (C) 2018 by authors.
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- * Or go to http://www.gnu.org/copyleft/lgpl.html
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <SDL2/SDL.h>
-
-#include "alMain.h"
-#include "alu.h"
-#include "threads.h"
-#include "compat.h"
-
-#include "backends/base.h"
-
-
-#ifdef _WIN32
-#define DEVNAME_PREFIX "OpenAL Soft on "
-#else
-#define DEVNAME_PREFIX ""
-#endif
-
-typedef struct ALCsdl2Backend {
- DERIVE_FROM_TYPE(ALCbackend);
-
- SDL_AudioDeviceID deviceID;
- ALsizei frameSize;
-
- ALuint Frequency;
- enum DevFmtChannels FmtChans;
- enum DevFmtType FmtType;
- ALuint UpdateSize;
-} ALCsdl2Backend;
-
-static void ALCsdl2Backend_Construct(ALCsdl2Backend *self, ALCdevice *device);
-static void ALCsdl2Backend_Destruct(ALCsdl2Backend *self);
-static ALCenum ALCsdl2Backend_open(ALCsdl2Backend *self, const ALCchar *name);
-static ALCboolean ALCsdl2Backend_reset(ALCsdl2Backend *self);
-static ALCboolean ALCsdl2Backend_start(ALCsdl2Backend *self);
-static void ALCsdl2Backend_stop(ALCsdl2Backend *self);
-static DECLARE_FORWARD2(ALCsdl2Backend, ALCbackend, ALCenum, captureSamples, void*, ALCuint)
-static DECLARE_FORWARD(ALCsdl2Backend, ALCbackend, ALCuint, availableSamples)
-static DECLARE_FORWARD(ALCsdl2Backend, ALCbackend, ClockLatency, getClockLatency)
-static void ALCsdl2Backend_lock(ALCsdl2Backend *self);
-static void ALCsdl2Backend_unlock(ALCsdl2Backend *self);
-DECLARE_DEFAULT_ALLOCATORS(ALCsdl2Backend)
-
-DEFINE_ALCBACKEND_VTABLE(ALCsdl2Backend);
-
-static const ALCchar defaultDeviceName[] = DEVNAME_PREFIX "Default Device";
-
-static void ALCsdl2Backend_Construct(ALCsdl2Backend *self, ALCdevice *device)
-{
- ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
- SET_VTABLE2(ALCsdl2Backend, ALCbackend, self);
-
- self->deviceID = 0;
- self->frameSize = FrameSizeFromDevFmt(device->FmtChans, device->FmtType, device->AmbiOrder);
- self->Frequency = device->Frequency;
- self->FmtChans = device->FmtChans;
- self->FmtType = device->FmtType;
- self->UpdateSize = device->UpdateSize;
-}
-
-static void ALCsdl2Backend_Destruct(ALCsdl2Backend *self)
-{
- if(self->deviceID)
- SDL_CloseAudioDevice(self->deviceID);
- self->deviceID = 0;
-
- ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
-}
-
-
-static void ALCsdl2Backend_audioCallback(void *ptr, Uint8 *stream, int len)
-{
- ALCsdl2Backend *self = (ALCsdl2Backend*)ptr;
- ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-
- assert((len % self->frameSize) == 0);
- aluMixData(device, stream, len / self->frameSize);
-}
-
-static ALCenum ALCsdl2Backend_open(ALCsdl2Backend *self, const ALCchar *name)
-{
- ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
- SDL_AudioSpec want, have;
-
- SDL_zero(want);
- SDL_zero(have);
-
- want.freq = device->Frequency;
- switch(device->FmtType)
- {
- case DevFmtUByte: want.format = AUDIO_U8; break;
- case DevFmtByte: want.format = AUDIO_S8; break;
- case DevFmtUShort: want.format = AUDIO_U16SYS; break;
- case DevFmtShort: want.format = AUDIO_S16SYS; break;
- case DevFmtUInt: /* fall-through */
- case DevFmtInt: want.format = AUDIO_S32SYS; break;
- case DevFmtFloat: want.format = AUDIO_F32; break;
- }
- want.channels = (device->FmtChans == DevFmtMono) ? 1 : 2;
- want.samples = device->UpdateSize;
- want.callback = ALCsdl2Backend_audioCallback;
- want.userdata = self;
-
- /* Passing NULL to SDL_OpenAudioDevice opens a default, which isn't
- * necessarily the first in the list.
- */
- if(!name || strcmp(name, defaultDeviceName) == 0)
- self->deviceID = SDL_OpenAudioDevice(NULL, SDL_FALSE, &want, &have,
- SDL_AUDIO_ALLOW_ANY_CHANGE);
- else
- {
- const size_t prefix_len = strlen(DEVNAME_PREFIX);
- if(strncmp(name, DEVNAME_PREFIX, prefix_len) == 0)
- self->deviceID = SDL_OpenAudioDevice(name+prefix_len, SDL_FALSE, &want, &have,
- SDL_AUDIO_ALLOW_ANY_CHANGE);
- else
- self->deviceID = SDL_OpenAudioDevice(name, SDL_FALSE, &want, &have,
- SDL_AUDIO_ALLOW_ANY_CHANGE);
- }
- if(self->deviceID == 0)
- return ALC_INVALID_VALUE;
-
- device->Frequency = have.freq;
- if(have.channels == 1)
- device->FmtChans = DevFmtMono;
- else if(have.channels == 2)
- device->FmtChans = DevFmtStereo;
- else
- {
- ERR("Got unhandled SDL channel count: %d\n", (int)have.channels);
- return ALC_INVALID_VALUE;
- }
- switch(have.format)
- {
- case AUDIO_U8: device->FmtType = DevFmtUByte; break;
- case AUDIO_S8: device->FmtType = DevFmtByte; break;
- case AUDIO_U16SYS: device->FmtType = DevFmtUShort; break;
- case AUDIO_S16SYS: device->FmtType = DevFmtShort; break;
- case AUDIO_S32SYS: device->FmtType = DevFmtInt; break;
- case AUDIO_F32SYS: device->FmtType = DevFmtFloat; break;
- default:
- ERR("Got unsupported SDL format: 0x%04x\n", have.format);
- return ALC_INVALID_VALUE;
- }
- device->UpdateSize = have.samples;
- device->NumUpdates = 2; /* SDL always (tries to) use two periods. */
-
- self->frameSize = FrameSizeFromDevFmt(device->FmtChans, device->FmtType, device->AmbiOrder);
- self->Frequency = device->Frequency;
- self->FmtChans = device->FmtChans;
- self->FmtType = device->FmtType;
- self->UpdateSize = device->UpdateSize;
-
- alstr_copy_cstr(&device->DeviceName, name ? name : defaultDeviceName);
-
- return ALC_NO_ERROR;
-}
-
-static ALCboolean ALCsdl2Backend_reset(ALCsdl2Backend *self)
-{
- ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
- device->Frequency = self->Frequency;
- device->FmtChans = self->FmtChans;
- device->FmtType = self->FmtType;
- device->UpdateSize = self->UpdateSize;
- device->NumUpdates = 2;
- SetDefaultWFXChannelOrder(device);
- return ALC_TRUE;
-}
-
-static ALCboolean ALCsdl2Backend_start(ALCsdl2Backend *self)
-{
- SDL_PauseAudioDevice(self->deviceID, 0);
- return ALC_TRUE;
-}
-
-static void ALCsdl2Backend_stop(ALCsdl2Backend *self)
-{
- SDL_PauseAudioDevice(self->deviceID, 1);
-}
-
-static void ALCsdl2Backend_lock(ALCsdl2Backend *self)
-{
- SDL_LockAudioDevice(self->deviceID);
-}
-
-static void ALCsdl2Backend_unlock(ALCsdl2Backend *self)
-{
- SDL_UnlockAudioDevice(self->deviceID);
-}
-
-
-typedef struct ALCsdl2BackendFactory {
- DERIVE_FROM_TYPE(ALCbackendFactory);
-} ALCsdl2BackendFactory;
-#define ALCsdl2BACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCsdl2BackendFactory, ALCbackendFactory) } }
-
-ALCbackendFactory *ALCsdl2BackendFactory_getFactory(void);
-
-static ALCboolean ALCsdl2BackendFactory_init(ALCsdl2BackendFactory *self);
-static void ALCsdl2BackendFactory_deinit(ALCsdl2BackendFactory *self);
-static ALCboolean ALCsdl2BackendFactory_querySupport(ALCsdl2BackendFactory *self, ALCbackend_Type type);
-static void ALCsdl2BackendFactory_probe(ALCsdl2BackendFactory *self, enum DevProbe type, al_string *outnames);
-static ALCbackend* ALCsdl2BackendFactory_createBackend(ALCsdl2BackendFactory *self, ALCdevice *device, ALCbackend_Type type);
-DEFINE_ALCBACKENDFACTORY_VTABLE(ALCsdl2BackendFactory);
-
-
-ALCbackendFactory *ALCsdl2BackendFactory_getFactory(void)
-{
- static ALCsdl2BackendFactory factory = ALCsdl2BACKENDFACTORY_INITIALIZER;
- return STATIC_CAST(ALCbackendFactory, &factory);
-}
-
-
-static ALCboolean ALCsdl2BackendFactory_init(ALCsdl2BackendFactory* UNUSED(self))
-{
- if(SDL_InitSubSystem(SDL_INIT_AUDIO) == 0)
- return AL_TRUE;
- return ALC_FALSE;
-}
-
-static void ALCsdl2BackendFactory_deinit(ALCsdl2BackendFactory* UNUSED(self))
-{
- SDL_QuitSubSystem(SDL_INIT_AUDIO);
-}
-
-static ALCboolean ALCsdl2BackendFactory_querySupport(ALCsdl2BackendFactory* UNUSED(self), ALCbackend_Type type)
-{
- if(type == ALCbackend_Playback)
- return ALC_TRUE;
- return ALC_FALSE;
-}
-
-static void ALCsdl2BackendFactory_probe(ALCsdl2BackendFactory* UNUSED(self), enum DevProbe type, al_string *outnames)
-{
- int num_devices, i;
- al_string name;
-
- if(type != ALL_DEVICE_PROBE)
- return;
-
- AL_STRING_INIT(name);
- num_devices = SDL_GetNumAudioDevices(SDL_FALSE);
-
- alstr_append_range(outnames, defaultDeviceName, defaultDeviceName+sizeof(defaultDeviceName));
- for(i = 0;i < num_devices;++i)
- {
- alstr_copy_cstr(&name, DEVNAME_PREFIX);
- alstr_append_cstr(&name, SDL_GetAudioDeviceName(i, SDL_FALSE));
- if(!alstr_empty(name))
- alstr_append_range(outnames, VECTOR_BEGIN(name), VECTOR_END(name)+1);
- }
- alstr_reset(&name);
-}
-
-static ALCbackend* ALCsdl2BackendFactory_createBackend(ALCsdl2BackendFactory* UNUSED(self), ALCdevice *device, ALCbackend_Type type)
-{
- if(type == ALCbackend_Playback)
- {
- ALCsdl2Backend *backend;
- NEW_OBJ(backend, ALCsdl2Backend)(device);
- if(!backend) return NULL;
- return STATIC_CAST(ALCbackend, backend);
- }
-
- return NULL;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 15:31:37 +0000