Rename al/* sources to avoid camel-case

1 files changed, 454 insertions, 0 deletions

diff --git a/al/listener.cpp b/al/listener.cpp
new file mode 100644
index 00000000..d67bf072
--- /dev/null
+++ b/al/listener.cpp
@@ -0,0 +1,454 @@
+/**
+ * OpenAL cross platform audio library
+ * Copyright (C) 1999-2000 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 "listener.h"
+
+#include <cmath>
+#include <mutex>
+
+#include "AL/efx.h"
+
+#include "alcontext.h"
+#include "alexcpt.h"
+#include "almalloc.h"
+#include "atomic.h"
+#include "error.h"
+#include "opthelpers.h"
+
+
+#define DO_UPDATEPROPS() do {                                                 \
+    if(!context->DeferUpdates.load(std::memory_order_acquire))                \
+        UpdateListenerProps(context.get());                                   \
+    else                                                                      \
+        listener.PropsClean.clear(std::memory_order_release);                 \
+} while(0)
+
+
+AL_API ALvoid AL_APIENTRY alListenerf(ALenum param, ALfloat value)
+START_API_FUNC
+{
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    ALlistener &listener = context->Listener;
+    std::lock_guard<std::mutex> _{context->PropLock};
+    switch(param)
+    {
+    case AL_GAIN:
+        if(!(value >= 0.0f && std::isfinite(value)))
+            SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Listener gain out of range");
+        listener.Gain = value;
+        DO_UPDATEPROPS();
+        break;
+
+    case AL_METERS_PER_UNIT:
+        if(!(value >= AL_MIN_METERS_PER_UNIT && value <= AL_MAX_METERS_PER_UNIT))
+            SETERR_RETURN(context.get(), AL_INVALID_VALUE,,
+                          "Listener meters per unit out of range");
+        context->MetersPerUnit = value;
+        if(!context->DeferUpdates.load(std::memory_order_acquire))
+            UpdateContextProps(context.get());
+        else
+            context->PropsClean.clear(std::memory_order_release);
+        break;
+
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener float property");
+    }
+}
+END_API_FUNC
+
+AL_API ALvoid AL_APIENTRY alListener3f(ALenum param, ALfloat value1, ALfloat value2, ALfloat value3)
+START_API_FUNC
+{
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    ALlistener &listener = context->Listener;
+    std::lock_guard<std::mutex> _{context->PropLock};
+    switch(param)
+    {
+    case AL_POSITION:
+        if(!(std::isfinite(value1) && std::isfinite(value2) && std::isfinite(value3)))
+            SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Listener position out of range");
+        listener.Position[0] = value1;
+        listener.Position[1] = value2;
+        listener.Position[2] = value3;
+        DO_UPDATEPROPS();
+        break;
+
+    case AL_VELOCITY:
+        if(!(std::isfinite(value1) && std::isfinite(value2) && std::isfinite(value3)))
+            SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Listener velocity out of range");
+        listener.Velocity[0] = value1;
+        listener.Velocity[1] = value2;
+        listener.Velocity[2] = value3;
+        DO_UPDATEPROPS();
+        break;
+
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener 3-float property");
+    }
+}
+END_API_FUNC
+
+AL_API ALvoid AL_APIENTRY alListenerfv(ALenum param, const ALfloat *values)
+START_API_FUNC
+{
+    if(values)
+    {
+        switch(param)
+        {
+        case AL_GAIN:
+        case AL_METERS_PER_UNIT:
+            alListenerf(param, values[0]);
+            return;
+
+        case AL_POSITION:
+        case AL_VELOCITY:
+            alListener3f(param, values[0], values[1], values[2]);
+            return;
+        }
+    }
+
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    ALlistener &listener = context->Listener;
+    std::lock_guard<std::mutex> _{context->PropLock};
+    if(!values) SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "NULL pointer");
+    switch(param)
+    {
+    case AL_ORIENTATION:
+        if(!(std::isfinite(values[0]) && std::isfinite(values[1]) && std::isfinite(values[2]) &&
+             std::isfinite(values[3]) && std::isfinite(values[4]) && std::isfinite(values[5])))
+            SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Listener orientation out of range");
+        /* AT then UP */
+        listener.OrientAt[0] = values[0];
+        listener.OrientAt[1] = values[1];
+        listener.OrientAt[2] = values[2];
+        listener.OrientUp[0] = values[3];
+        listener.OrientUp[1] = values[4];
+        listener.OrientUp[2] = values[5];
+        DO_UPDATEPROPS();
+        break;
+
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener float-vector property");
+    }
+}
+END_API_FUNC
+
+
+AL_API ALvoid AL_APIENTRY alListeneri(ALenum param, ALint /*value*/)
+START_API_FUNC
+{
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    std::lock_guard<std::mutex> _{context->PropLock};
+    switch(param)
+    {
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener integer property");
+    }
+}
+END_API_FUNC
+
+AL_API void AL_APIENTRY alListener3i(ALenum param, ALint value1, ALint value2, ALint value3)
+START_API_FUNC
+{
+    switch(param)
+    {
+    case AL_POSITION:
+    case AL_VELOCITY:
+        alListener3f(param, static_cast<ALfloat>(value1), static_cast<ALfloat>(value2), static_cast<ALfloat>(value3));
+        return;
+    }
+
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    std::lock_guard<std::mutex> _{context->PropLock};
+    switch(param)
+    {
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener 3-integer property");
+    }
+}
+END_API_FUNC
+
+AL_API void AL_APIENTRY alListeneriv(ALenum param, const ALint *values)
+START_API_FUNC
+{
+    if(values)
+    {
+        ALfloat fvals[6];
+        switch(param)
+        {
+        case AL_POSITION:
+        case AL_VELOCITY:
+            alListener3f(param, static_cast<ALfloat>(values[0]), static_cast<ALfloat>(values[1]), static_cast<ALfloat>(values[2]));
+            return;
+
+        case AL_ORIENTATION:
+            fvals[0] = static_cast<ALfloat>(values[0]);
+            fvals[1] = static_cast<ALfloat>(values[1]);
+            fvals[2] = static_cast<ALfloat>(values[2]);
+            fvals[3] = static_cast<ALfloat>(values[3]);
+            fvals[4] = static_cast<ALfloat>(values[4]);
+            fvals[5] = static_cast<ALfloat>(values[5]);
+            alListenerfv(param, fvals);
+            return;
+        }
+    }
+
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    std::lock_guard<std::mutex> _{context->PropLock};
+    if(!values)
+        alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
+    else switch(param)
+    {
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener integer-vector property");
+    }
+}
+END_API_FUNC
+
+
+AL_API ALvoid AL_APIENTRY alGetListenerf(ALenum param, ALfloat *value)
+START_API_FUNC
+{
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    ALlistener &listener = context->Listener;
+    std::lock_guard<std::mutex> _{context->PropLock};
+    if(!value)
+        alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
+    else switch(param)
+    {
+    case AL_GAIN:
+        *value = listener.Gain;
+        break;
+
+    case AL_METERS_PER_UNIT:
+        *value = context->MetersPerUnit;
+        break;
+
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener float property");
+    }
+}
+END_API_FUNC
+
+AL_API ALvoid AL_APIENTRY alGetListener3f(ALenum param, ALfloat *value1, ALfloat *value2, ALfloat *value3)
+START_API_FUNC
+{
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    ALlistener &listener = context->Listener;
+    std::lock_guard<std::mutex> _{context->PropLock};
+    if(!value1 || !value2 || !value3)
+        alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
+    else switch(param)
+    {
+    case AL_POSITION:
+        *value1 = listener.Position[0];
+        *value2 = listener.Position[1];
+        *value3 = listener.Position[2];
+        break;
+
+    case AL_VELOCITY:
+        *value1 = listener.Velocity[0];
+        *value2 = listener.Velocity[1];
+        *value3 = listener.Velocity[2];
+        break;
+
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener 3-float property");
+    }
+}
+END_API_FUNC
+
+AL_API ALvoid AL_APIENTRY alGetListenerfv(ALenum param, ALfloat *values)
+START_API_FUNC
+{
+    switch(param)
+    {
+    case AL_GAIN:
+    case AL_METERS_PER_UNIT:
+        alGetListenerf(param, values);
+        return;
+
+    case AL_POSITION:
+    case AL_VELOCITY:
+        alGetListener3f(param, values+0, values+1, values+2);
+        return;
+    }
+
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    ALlistener &listener = context->Listener;
+    std::lock_guard<std::mutex> _{context->PropLock};
+    if(!values)
+        alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
+    else switch(param)
+    {
+    case AL_ORIENTATION:
+        // AT then UP
+        values[0] = listener.OrientAt[0];
+        values[1] = listener.OrientAt[1];
+        values[2] = listener.OrientAt[2];
+        values[3] = listener.OrientUp[0];
+        values[4] = listener.OrientUp[1];
+        values[5] = listener.OrientUp[2];
+        break;
+
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener float-vector property");
+    }
+}
+END_API_FUNC
+
+
+AL_API ALvoid AL_APIENTRY alGetListeneri(ALenum param, ALint *value)
+START_API_FUNC
+{
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    std::lock_guard<std::mutex> _{context->PropLock};
+    if(!value)
+        alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
+    else switch(param)
+    {
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener integer property");
+    }
+}
+END_API_FUNC
+
+AL_API void AL_APIENTRY alGetListener3i(ALenum param, ALint *value1, ALint *value2, ALint *value3)
+START_API_FUNC
+{
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    ALlistener &listener = context->Listener;
+    std::lock_guard<std::mutex> _{context->PropLock};
+    if(!value1 || !value2 || !value3)
+        alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
+    else switch(param)
+    {
+    case AL_POSITION:
+        *value1 = static_cast<ALint>(listener.Position[0]);
+        *value2 = static_cast<ALint>(listener.Position[1]);
+        *value3 = static_cast<ALint>(listener.Position[2]);
+        break;
+
+    case AL_VELOCITY:
+        *value1 = static_cast<ALint>(listener.Velocity[0]);
+        *value2 = static_cast<ALint>(listener.Velocity[1]);
+        *value3 = static_cast<ALint>(listener.Velocity[2]);
+        break;
+
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener 3-integer property");
+    }
+}
+END_API_FUNC
+
+AL_API void AL_APIENTRY alGetListeneriv(ALenum param, ALint* values)
+START_API_FUNC
+{
+    switch(param)
+    {
+    case AL_POSITION:
+    case AL_VELOCITY:
+        alGetListener3i(param, values+0, values+1, values+2);
+        return;
+    }
+
+    ContextRef context{GetContextRef()};
+    if(UNLIKELY(!context)) return;
+
+    ALlistener &listener = context->Listener;
+    std::lock_guard<std::mutex> _{context->PropLock};
+    if(!values)
+        alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
+    else switch(param)
+    {
+    case AL_ORIENTATION:
+        // AT then UP
+        values[0] = static_cast<ALint>(listener.OrientAt[0]);
+        values[1] = static_cast<ALint>(listener.OrientAt[1]);
+        values[2] = static_cast<ALint>(listener.OrientAt[2]);
+        values[3] = static_cast<ALint>(listener.OrientUp[0]);
+        values[4] = static_cast<ALint>(listener.OrientUp[1]);
+        values[5] = static_cast<ALint>(listener.OrientUp[2]);
+        break;
+
+    default:
+        alSetError(context.get(), AL_INVALID_ENUM, "Invalid listener integer-vector property");
+    }
+}
+END_API_FUNC
+
+
+void UpdateListenerProps(ALCcontext *context)
+{
+    /* Get an unused proprty container, or allocate a new one as needed. */
+    ALlistenerProps *props{context->FreeListenerProps.load(std::memory_order_acquire)};
+    if(!props)
+        props = static_cast<ALlistenerProps*>(al_calloc(16, sizeof(*props)));
+    else
+    {
+        ALlistenerProps *next;
+        do {
+            next = props->next.load(std::memory_order_relaxed);
+        } while(context->FreeListenerProps.compare_exchange_weak(props, next,
+                std::memory_order_seq_cst, std::memory_order_acquire) == 0);
+    }
+
+    /* Copy in current property values. */
+    ALlistener &listener = context->Listener;
+    props->Position = listener.Position;
+    props->Velocity = listener.Velocity;
+    props->OrientAt = listener.OrientAt;
+    props->OrientUp = listener.OrientUp;
+    props->Gain = listener.Gain;
+
+    /* Set the new container for updating internal parameters. */
+    props = listener.Update.exchange(props, std::memory_order_acq_rel);
+    if(props)
+    {
+        /* If there was an unused update container, put it back in the
+         * freelist.
+         */
+        AtomicReplaceHead(context->FreeListenerProps, props);
+    }
+}