openal-soft/openal-soft-1.19.1-vita-0.patch

diff --git a/Alc/ALc.c b/Alc/ALc.c
index 8bf2e1da..8b3b1fa5 100644
--- a/Alc/ALc.c
+++ b/Alc/ALc.c
@@ -105,6 +105,9 @@ static struct BackendInfo BackendList[] = {
 #ifdef HAVE_SDL2
     { "sdl2", ALCsdl2BackendFactory_getFactory },
 #endif
+#ifdef HAVE_VITA
+    { "vita", ALCvitaBackendFactory_getFactory },
+#endif
 
     { "null", ALCnullBackendFactory_getFactory },
 #ifdef HAVE_WAVE
diff --git a/Alc/alconfig.c b/Alc/alconfig.c
index 3d0ed140..4e1e6803 100644
--- a/Alc/alconfig.c
+++ b/Alc/alconfig.c
@@ -420,6 +420,29 @@ void ReadALConfig(void)
 
     alstr_reset(&ppath);
 }
+#elif defined __vita__
+void ReadALConfig(void)
+{
+    const char* config_paths[] =
+    {
+        "app0:/alsoft.conf",
+        "ux0:/data/openal/alsoft.conf"
+    };
+
+    FILE* f;
+    unsigned int i;
+    for(i = 0; i < sizeof(config_paths) / sizeof(*config_paths); ++i)
+    {
+        TRACE("Loading config %s...\n", config_paths[i]);
+        f = al_fopen(config_paths[i], "r");
+        if(f)
+        {
+            LoadConfigFromFile(f);
+            fclose(f);
+            break;
+        }
+    }
+}
 #else
 void ReadALConfig(void)
 {
diff --git a/Alc/backends/base.h b/Alc/backends/base.h
index 03db56e9..74b75c45 100644
--- a/Alc/backends/base.h
+++ b/Alc/backends/base.h
@@ -150,6 +150,7 @@ ALCbackendFactory *ALCdsoundBackendFactory_getFactory(void);
 ALCbackendFactory *ALCwinmmBackendFactory_getFactory(void);
 ALCbackendFactory *ALCportBackendFactory_getFactory(void);
 ALCbackendFactory *ALCopenslBackendFactory_getFactory(void);
+ALCbackendFactory *ALCvitaBackendFactory_getFactory(void);
 ALCbackendFactory *ALCnullBackendFactory_getFactory(void);
 ALCbackendFactory *ALCwaveBackendFactory_getFactory(void);
 ALCbackendFactory *ALCsdl2BackendFactory_getFactory(void);
diff --git a/Alc/backends/vita.c b/Alc/backends/vita.c
new file mode 100644
index 00000000..916fffa3
--- /dev/null
+++ b/Alc/backends/vita.c
@@ -0,0 +1,411 @@
+/**
+ * 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 <psp2/audioin.h>
+#include <psp2/audioout.h>
+#include <stdlib.h>
+
+#include "alMain.h"
+#include "alu.h"
+#include "ringbuffer.h"
+#include "threads.h"
+
+#include "backends/base.h"
+
+static const ALCchar playbackDeviceName[] = "PS Vita Speakers/Headphones";
+static const ALCchar captureDeviceName[] = "PS Vita Microphone";
+
+// -----------------------------------------------------------------------------
+// Playback
+// -----------------------------------------------------------------------------
+typedef struct ALCvitaPlayback
+{
+    DERIVE_FROM_TYPE(ALCbackend);
+
+    ATOMIC(int) killNow;
+    althrd_t thread;
+
+    int portNumber;
+    ALsizei frameSize;
+    void* waveBuffer;
+
+    ALuint Frequency;
+    enum DevFmtChannels FmtChans;
+    enum DevFmtType     FmtType;
+    ALuint UpdateSize;
+} ALCvitaPlayback;
+
+static void ALCvitaPlayback_Construct(ALCvitaPlayback *self, ALCdevice *device);
+static void ALCvitaPlayback_Destruct(ALCvitaPlayback *self);
+static ALCenum ALCvitaPlayback_open(ALCvitaPlayback *self, const ALCchar *name);
+static ALCboolean ALCvitaPlayback_reset(ALCvitaPlayback *self);
+static ALCboolean ALCvitaPlayback_start(ALCvitaPlayback *self);
+static void ALCvitaPlayback_stop(ALCvitaPlayback *self);
+static DECLARE_FORWARD2(ALCvitaPlayback, ALCbackend, ALCenum, captureSamples, void*, ALCuint)
+static DECLARE_FORWARD(ALCvitaPlayback, ALCbackend, ALCuint, availableSamples)
+static DECLARE_FORWARD(ALCvitaPlayback, ALCbackend, ClockLatency, getClockLatency)
+static DECLARE_FORWARD(ALCvitaPlayback, ALCbackend, void, lock)
+static DECLARE_FORWARD(ALCvitaPlayback, ALCbackend, void, unlock)
+DECLARE_DEFAULT_ALLOCATORS(ALCvitaPlayback)
+
+DEFINE_ALCBACKEND_VTABLE(ALCvitaPlayback);
+
+static void ALCvitaPlayback_Construct(ALCvitaPlayback *self, ALCdevice *device)
+{
+    ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
+    SET_VTABLE2(ALCvitaPlayback, ALCbackend, self);
+
+    self->portNumber = 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 ALCvitaPlayback_Destruct(ALCvitaPlayback *self)
+{
+    if (self->portNumber)
+    {
+        sceAudioOutReleasePort(self->portNumber);
+        self->portNumber = 0;
+    }
+
+    if (self->waveBuffer)
+    {
+        free(self->waveBuffer);
+        self->waveBuffer = NULL;
+    }
+
+    ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
+}
+
+static int ALCvitaPlayback_MixerProc(void *ptr)
+{
+    ALCvitaPlayback *self = (ALCvitaPlayback*)ptr;
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+
+    while (!ATOMIC_LOAD(&self->killNow, almemory_order_acquire))
+    {
+        ALCvitaPlayback_lock(self);
+        aluMixData(device, self->waveBuffer, device->UpdateSize);
+        ALCvitaPlayback_unlock(self);
+        sceAudioOutOutput(self->portNumber, self->waveBuffer);
+    }
+
+    return 0;
+}
+
+static ALCenum ALCvitaPlayback_open(ALCvitaPlayback *self, const ALCchar *name)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+
+    /* Only signed short output sample format is supported */
+    device->FmtType = DevFmtShort;
+
+    /* Only mono/stereo channel configurations are supported */
+    if (device->FmtChans != DevFmtMono && device->FmtChans != DevFmtStereo)
+        device->FmtChans = DevFmtStereo;
+
+    /* TODO: Validate samplerate and update size */
+
+    self->portNumber = sceAudioOutOpenPort(
+        SCE_AUDIO_OUT_PORT_TYPE_BGM,
+        device->UpdateSize,
+        device->Frequency,
+        device->FmtChans == DevFmtStereo ? SCE_AUDIO_OUT_MODE_STEREO : SCE_AUDIO_OUT_MODE_MONO
+    );
+
+    if (self->portNumber < 0)
+        return ALC_INVALID_VALUE;
+
+    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;
+
+    self->waveBuffer = calloc(device->UpdateSize * self->frameSize, 1);
+
+    alstr_copy_cstr(&device->DeviceName, name ? name : playbackDeviceName);
+
+    return ALC_NO_ERROR;
+}
+
+static ALCboolean ALCvitaPlayback_reset(ALCvitaPlayback *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    SetDefaultWFXChannelOrder(device);
+    return ALC_TRUE;
+}
+
+static ALCboolean ALCvitaPlayback_start(ALCvitaPlayback *self)
+{
+    ATOMIC_STORE(&self->killNow, AL_FALSE, almemory_order_release);
+    if (althrd_create(&self->thread, ALCvitaPlayback_MixerProc, self) != althrd_success)
+        return ALC_FALSE;
+
+    return ALC_TRUE;
+}
+
+static void ALCvitaPlayback_stop(ALCvitaPlayback *self)
+{
+    int res;
+
+    if (ATOMIC_EXCHANGE(&self->killNow, AL_TRUE, almemory_order_acq_rel))
+        return;
+
+    althrd_join(self->thread, &res);
+}
+
+// -----------------------------------------------------------------------------
+// Capture
+// -----------------------------------------------------------------------------
+typedef struct ALCvitaCapture
+{
+    DERIVE_FROM_TYPE(ALCbackend);
+
+    ATOMIC(int) killNow;
+    althrd_t thread;
+
+    int portNumber;
+    ALsizei frameSize;
+    ll_ringbuffer_t *ring;
+
+    ALuint Frequency;
+    enum DevFmtChannels FmtChans;
+    enum DevFmtType     FmtType;
+    ALuint UpdateSize;
+} ALCvitaCapture;
+
+static void ALCvitaCapture_Construct(ALCvitaCapture *self, ALCdevice *device);
+static void ALCvitaCapture_Destruct(ALCvitaCapture *self);
+static ALCenum ALCvitaCapture_open(ALCvitaCapture *self, const ALCchar *name);
+static ALCboolean ALCvitaCapture_reset(ALCvitaCapture *self);
+static ALCboolean ALCvitaCapture_start(ALCvitaCapture *self);
+static void ALCvitaCapture_stop(ALCvitaCapture *self);
+static ALCenum ALCvitaCapture_captureSamples(ALCvitaCapture *self, ALCvoid *buffer, ALCuint samples);
+static ALCuint ALCvitaCapture_availableSamples(ALCvitaCapture *self);
+static DECLARE_FORWARD(ALCvitaCapture, ALCbackend, ClockLatency, getClockLatency)
+static DECLARE_FORWARD(ALCvitaCapture, ALCbackend, void, lock)
+static DECLARE_FORWARD(ALCvitaCapture, ALCbackend, void, unlock)
+DECLARE_DEFAULT_ALLOCATORS(ALCvitaCapture)
+
+DEFINE_ALCBACKEND_VTABLE(ALCvitaCapture);
+
+static void ALCvitaCapture_Construct(ALCvitaCapture *self, ALCdevice *device)
+{
+    ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
+    SET_VTABLE2(ALCvitaCapture, ALCbackend, self);
+
+    self->portNumber = 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 ALCvitaCapture_Destruct(ALCvitaCapture *self)
+{
+    if (self->portNumber)
+    {
+        sceAudioOutReleasePort(self->portNumber);
+        self->portNumber = 0;
+    }
+
+    if (self->ring)
+    {
+        ll_ringbuffer_free(self->ring);
+        self->ring = NULL;
+    }
+
+    ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
+}
+
+static int ALCvitaCapture_MixerProc(void *ptr)
+{
+    ALCvitaCapture *self = (ALCvitaCapture*)ptr;
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+
+    void* buf = malloc(self->frameSize * device->UpdateSize);
+
+    while (!ATOMIC_LOAD(&self->killNow, almemory_order_acquire))
+    {
+        sceAudioInInput(self->portNumber, buf);
+        ll_ringbuffer_write(self->ring, buf, self->frameSize * device->UpdateSize);
+    }
+
+    free(buf);
+
+    return 0;
+}
+
+static ALCenum ALCvitaCapture_open(ALCvitaCapture *self, const ALCchar *name)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+
+    /* Only signed short output sample format is supported */
+    device->FmtType = DevFmtShort;
+
+    /* Only mono channel configuration is supported */
+    if (device->FmtChans != DevFmtMono)
+        device->FmtChans = DevFmtMono;
+
+    /* TODO: Validate samplerate and update size */
+
+    self->portNumber = sceAudioInOpenPort(
+        SCE_AUDIO_IN_PORT_TYPE_RAW,
+        device->UpdateSize,
+        device->Frequency,
+        SCE_AUDIO_IN_PARAM_FORMAT_S16_MONO
+    );
+
+    if (self->portNumber < 0)
+    {
+        return ALC_INVALID_VALUE;
+    }
+
+    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;
+
+    self->ring = ll_ringbuffer_create(device->UpdateSize * device->NumUpdates, self->frameSize, false);
+    if (self->ring == NULL)
+        return ALC_INVALID_VALUE;
+
+    alstr_copy_cstr(&device->DeviceName, name ? name : captureDeviceName);
+
+    return ALC_NO_ERROR;
+}
+
+static ALCboolean ALCvitaCapture_reset(ALCvitaCapture *self)
+{
+    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
+    SetDefaultWFXChannelOrder(device);
+    return ALC_TRUE;
+}
+
+static ALCboolean ALCvitaCapture_start(ALCvitaCapture *self)
+{
+    ATOMIC_STORE(&self->killNow, AL_FALSE, almemory_order_release);
+    if (althrd_create(&self->thread, ALCvitaCapture_MixerProc, self) != althrd_success)
+        return ALC_FALSE;
+
+    return ALC_TRUE;
+}
+
+static void ALCvitaCapture_stop(ALCvitaCapture *self)
+{
+    int res;
+
+    if (ATOMIC_EXCHANGE(&self->killNow, AL_TRUE, almemory_order_acq_rel))
+        return;
+
+    althrd_join(self->thread, &res);
+}
+
+static ALCuint ALCvitaCapture_availableSamples(ALCvitaCapture *self)
+{
+    return ll_ringbuffer_read_space(self->ring);
+}
+
+static ALCenum ALCvitaCapture_captureSamples(ALCvitaCapture *self, ALCvoid *buffer, ALCuint samples)
+{
+    ll_ringbuffer_read(self->ring, buffer, samples);
+    return ALC_NO_ERROR;
+}
+
+typedef struct ALCvitaBackendFactory {
+    DERIVE_FROM_TYPE(ALCbackendFactory);
+} ALCvitaBackendFactory;
+#define ALCvitaBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCvitaBackendFactory, ALCbackendFactory) } }
+
+ALCbackendFactory *ALCvitaBackendFactory_getFactory(void);
+
+static ALCboolean ALCvitaBackendFactory_init(ALCvitaBackendFactory *self);
+static void ALCvitaBackendFactory_deinit(ALCvitaBackendFactory *self);
+static ALCboolean ALCvitaBackendFactory_querySupport(ALCvitaBackendFactory *self, ALCbackend_Type type);
+static void ALCvitaBackendFactory_probe(ALCvitaBackendFactory *self, enum DevProbe type, al_string *outnames);
+static ALCbackend* ALCvitaBackendFactory_createBackend(ALCvitaBackendFactory *self, ALCdevice *device, ALCbackend_Type type);
+
+DEFINE_ALCBACKENDFACTORY_VTABLE(ALCvitaBackendFactory);
+
+ALCbackendFactory *ALCvitaBackendFactory_getFactory(void)
+{
+    static ALCvitaBackendFactory factory = ALCvitaBACKENDFACTORY_INITIALIZER;
+    return STATIC_CAST(ALCbackendFactory, &factory);
+}
+
+
+static ALCboolean ALCvitaBackendFactory_init(ALCvitaBackendFactory* UNUSED(self))
+{
+    return AL_TRUE;
+}
+
+static void ALCvitaBackendFactory_deinit(ALCvitaBackendFactory* UNUSED(self))
+{
+}
+
+static ALCboolean ALCvitaBackendFactory_querySupport(ALCvitaBackendFactory* UNUSED(self), ALCbackend_Type type)
+{
+    if (type == ALCbackend_Playback || type == ALCbackend_Capture)
+        return ALC_TRUE;
+
+    return ALC_FALSE;
+}
+
+static void ALCvitaBackendFactory_probe(ALCvitaBackendFactory* UNUSED(self), enum DevProbe type, al_string *outnames)
+{
+    if (type == ALL_DEVICE_PROBE)
+        alstr_append_range(outnames, playbackDeviceName, playbackDeviceName+sizeof(playbackDeviceName));
+    else if (type == CAPTURE_DEVICE_PROBE)
+        alstr_append_range(outnames, captureDeviceName, playbackDeviceName+sizeof(captureDeviceName));
+}
+
+static ALCbackend* ALCvitaBackendFactory_createBackend(ALCvitaBackendFactory* UNUSED(self), ALCdevice *device, ALCbackend_Type type)
+{
+    if (type == ALCbackend_Playback)
+    {
+        ALCvitaPlayback *backend;
+        NEW_OBJ(backend, ALCvitaPlayback)(device);
+
+        if (!backend)
+            return NULL;
+
+        return STATIC_CAST(ALCbackend, backend);
+    }
+
+    if (type == ALCbackend_Capture)
+    {
+        ALCvitaCapture *backend;
+        NEW_OBJ(backend, ALCvitaCapture)(device);
+
+        if (!backend)
+            return NULL;
+
+        return STATIC_CAST(ALCbackend, backend);
+    }
+    return NULL;
+}
diff --git a/Alc/bformatdec.h b/Alc/bformatdec.h
index 2d7d1d62..d2160793 100644
--- a/Alc/bformatdec.h
+++ b/Alc/bformatdec.h
@@ -24,9 +24,9 @@
 /* NOTE: These are scale factors as applied to Ambisonics content. Decoder
  * coefficients should be divided by these values to get proper N3D scalings.
  */
-const ALfloat N3D2N3DScale[MAX_AMBI_COEFFS];
-const ALfloat SN3D2N3DScale[MAX_AMBI_COEFFS];
-const ALfloat FuMa2N3DScale[MAX_AMBI_COEFFS];
+extern const ALfloat N3D2N3DScale[MAX_AMBI_COEFFS];
+extern const ALfloat SN3D2N3DScale[MAX_AMBI_COEFFS];
+extern const ALfloat FuMa2N3DScale[MAX_AMBI_COEFFS];
 
 
 struct AmbDecConf;
diff --git a/Alc/helpers.c b/Alc/helpers.c
index d2cb6253..1815dcfc 100644
--- a/Alc/helpers.c
+++ b/Alc/helpers.c
@@ -102,7 +102,9 @@ DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_GUID, 0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x
 #ifndef _WIN32
 #include <sys/types.h>
 #include <sys/stat.h>
+#ifndef __vita__
 #include <sys/mman.h>
+#endif
 #include <fcntl.h>
 #include <unistd.h>
 #elif defined(_WIN32_IE)
@@ -218,6 +220,9 @@ void FillCPUCaps(int capfilter)
 #endif
 #endif
 #ifdef HAVE_NEON
+#ifdef __vita__
+    caps |= CPU_CAP_NEON;
+#else
     FILE *file = fopen("/proc/cpuinfo", "rt");
     if(!file)
         ERR("Failed to open /proc/cpuinfo, cannot check for NEON support\n");
@@ -262,6 +267,7 @@ void FillCPUCaps(int capfilter)
 
         alstr_reset(&features);
     }
+#endif
 #endif
 
     TRACE("Extensions:%s%s%s%s%s%s\n",
@@ -680,6 +686,11 @@ void UnmapFileMem(const struct FileMapping *mapping)
 
 void GetProcBinary(al_string *path, al_string *fname)
 {
+#ifdef __vita__
+    if(path) alstr_copy_cstr(path, "app0:/");
+    if(fname) alstr_copy_cstr(fname, "eboot.bin");
+
+#else
     char *pathname = NULL;
     size_t pathlen;
 
@@ -770,7 +781,7 @@ void GetProcBinary(al_string *path, al_string *fname)
         if(fname) alstr_copy_cstr(fname, pathname);
     }
     free(pathname);
-
+#endif
     if(path && fname)
         TRACE("Got: %s, %s\n", alstr_get_cstr(*path), alstr_get_cstr(*fname));
     else if(path) TRACE("Got path: %s\n", alstr_get_cstr(*path));
@@ -871,6 +882,10 @@ vector_al_string SearchDataFiles(const char *ext, const char *subdir)
     while(ATOMIC_EXCHANGE_SEQ(&search_lock, 1) == 1)
         althrd_yield();
 
+#ifdef __vita__
+    DirectorySearch(subdir, ext, &results);
+#else
+
     if(subdir[0] == '/')
         DirectorySearch(subdir, ext, &results);
     else
@@ -953,7 +968,7 @@ vector_al_string SearchDataFiles(const char *ext, const char *subdir)
 
         alstr_reset(&path);
     }
-
+#endif
     ATOMIC_STORE_SEQ(&search_lock, 0);
 
     return results;
@@ -980,6 +995,10 @@ struct FileMapping MapFileToMem(const char *fname)
         return ret;
     }
 
+#ifdef __vita__
+    ptr = malloc(sbuf.st_size);
+    read(fd, ptr, sbuf.st_size);
+#else
     ptr = mmap(NULL, sbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
     if(ptr == MAP_FAILED)
     {
@@ -987,7 +1006,7 @@ struct FileMapping MapFileToMem(const char *fname)
         close(fd);
         return ret;
     }
-
+#endif
     ret.fd = fd;
     ret.ptr = ptr;
     ret.len = sbuf.st_size;
@@ -996,7 +1015,11 @@ struct FileMapping MapFileToMem(const char *fname)
 
 void UnmapFileMem(const struct FileMapping *mapping)
 {
+#ifdef __vita__
+    free(mapping->ptr);
+#else
     munmap(mapping->ptr, mapping->len);
+#endif
     close(mapping->fd);
 }
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 39b80250..4e0c78eb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -61,6 +61,13 @@ if(DEFINED LIB_SUFFIX)
     message(WARNING "LIB_SUFFIX is deprecated.  Use the variables provided by the GNUInstallDirs module instead")
 endif()
 
+if(VITA)
+    SET(LIBTYPE STATIC)
+    SET(ALSOFT_DLOPEN OFF)
+    SET(ALSOFT_UTILS OFF)
+    SET(ALSOFT_TESTS OFF)
+    SET(ALSOFT_EXAMPLES OFF)
+endif()
 
 SET(CPP_DEFS ) # C pre-process, not C++
 SET(INC_PATHS )
@@ -632,9 +639,11 @@ IF(NOT HAVE_WINDOWS_H)
         MESSAGE(FATAL_ERROR "No timing function found!")
     ENDIF()
 
-    CHECK_SYMBOL_EXISTS(nanosleep time.h HAVE_NANOSLEEP)
-    IF(NOT HAVE_NANOSLEEP)
-        MESSAGE(FATAL_ERROR "No sleep function found!")
+    IF(NOT VITA)
+        CHECK_SYMBOL_EXISTS(nanosleep time.h HAVE_NANOSLEEP)
+        IF(NOT HAVE_NANOSLEEP)
+            MESSAGE(FATAL_ERROR "No sleep function found!")
+        ENDIF()
     ENDIF()
 
     # We need pthreads outside of Windows
@@ -1249,6 +1258,20 @@ IF(ALSOFT_REQUIRE_SDL2 AND NOT SDL2_FOUND)
     MESSAGE(FATAL_ERROR "Failed to enabled required SDL2 backend")
 ENDIF()
 
+# Check for VITA backend
+IF(VITA)
+    OPTION(ALSOFT_BACKEND_VITA "Enable SDL2 backend" ON)
+    IF(ALSOFT_BACKEND_VITA)
+        SET(HAVE_VITA 1)
+        SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/vita.c)
+        SET(BACKENDS  "${BACKENDS} VITA,")
+        add_definitions("-Dmemcpy=sceClibMemcpy")
+        add_definitions("-Dmemset=sceClibMemset")
+        add_definitions("-Dmemmove=sceClibMemmove")
+        add_definitions("-Dmemcmp=sceClibMemcmp")
+    ENDIF()
+ENDIF()
+
 # Optionally enable the Wave Writer backend
 OPTION(ALSOFT_BACKEND_WAVE "Enable Wave Writer backend" ON)
 IF(ALSOFT_BACKEND_WAVE)
diff --git a/common/almalloc.c b/common/almalloc.c
index 0d982ca1..f10f403c 100644
--- a/common/almalloc.c
+++ b/common/almalloc.c
@@ -26,7 +26,9 @@
 
 void *al_malloc(size_t alignment, size_t size)
 {
-#if defined(HAVE_ALIGNED_ALLOC)
+#ifdef __vita__
+    return memalign(alignment, size);
+#elif defined(HAVE_ALIGNED_ALLOC)
     size = (size+(alignment-1))&~(alignment-1);
     return aligned_alloc(alignment, size);
 #elif defined(HAVE_POSIX_MEMALIGN)
diff --git a/common/threads.h b/common/threads.h
index b0bebd8d..26aef7ba 100644
--- a/common/threads.h
+++ b/common/threads.h
@@ -2,6 +2,9 @@
 #define AL_THREADS_H
 
 #include <time.h>
+#ifdef __vita__
+#include <psp2/kernel/threadmgr.h>
+#endif
 
 #if defined(__GNUC__) && defined(__i386__)
 /* force_align_arg_pointer is required for proper function arguments aligning
@@ -165,6 +168,13 @@ inline void althrd_yield(void)
 
 inline int althrd_sleep(const struct timespec *ts, struct timespec *rem)
 {
+#ifdef __vita__
+    if(sceKernelDelayThread(ts->tv_sec * 1000000 + ts->tv_nsec / 1000) != 0)
+    {
+        return -2;
+    }
+    return 0;
+#else
     int ret = nanosleep(ts, rem);
     if(ret != 0)
     {
@@ -172,6 +182,7 @@ inline int althrd_sleep(const struct timespec *ts, struct timespec *rem)
         errno = 0;
     }
     return ret;
+#endif
 }
 
 
diff --git a/config.h.in b/config.h.in
index 9cc6c16b..9799bf85 100644
--- a/config.h.in
+++ b/config.h.in
@@ -83,6 +83,9 @@
 /* Define if we have the SDL2 backend */
 #cmakedefine HAVE_SDL2
 
+/* Define if we have the PS Vita backend */
+#cmakedefine HAVE_VITA
+
 /* Define if we have the stat function */
 #cmakedefine HAVE_STAT