First Commit

externals/openal-soft/router/router.h

@@ -0,0 +1,243 @@
+#ifndef ROUTER_ROUTER_H
+#define ROUTER_ROUTER_H
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <winnt.h>
+
+#include <stdio.h>
+
+#include <atomic>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "AL/alc.h"
+#include "AL/al.h"
+#include "AL/alext.h"
+
+
+#define MAKE_ALC_VER(major, minor) (((major)<<8) | (minor))
+
+struct DriverIface {
+    std::wstring Name;
+    HMODULE Module{nullptr};
+    int ALCVer{0};
+    std::once_flag InitOnceCtx{};
+
+    LPALCCREATECONTEXT alcCreateContext{nullptr};
+    LPALCMAKECONTEXTCURRENT alcMakeContextCurrent{nullptr};
+    LPALCPROCESSCONTEXT alcProcessContext{nullptr};
+    LPALCSUSPENDCONTEXT alcSuspendContext{nullptr};
+    LPALCDESTROYCONTEXT alcDestroyContext{nullptr};
+    LPALCGETCURRENTCONTEXT alcGetCurrentContext{nullptr};
+    LPALCGETCONTEXTSDEVICE alcGetContextsDevice{nullptr};
+    LPALCOPENDEVICE alcOpenDevice{nullptr};
+    LPALCCLOSEDEVICE alcCloseDevice{nullptr};
+    LPALCGETERROR alcGetError{nullptr};
+    LPALCISEXTENSIONPRESENT alcIsExtensionPresent{nullptr};
+    LPALCGETPROCADDRESS alcGetProcAddress{nullptr};
+    LPALCGETENUMVALUE alcGetEnumValue{nullptr};
+    LPALCGETSTRING alcGetString{nullptr};
+    LPALCGETINTEGERV alcGetIntegerv{nullptr};
+    LPALCCAPTUREOPENDEVICE alcCaptureOpenDevice{nullptr};
+    LPALCCAPTURECLOSEDEVICE alcCaptureCloseDevice{nullptr};
+    LPALCCAPTURESTART alcCaptureStart{nullptr};
+    LPALCCAPTURESTOP alcCaptureStop{nullptr};
+    LPALCCAPTURESAMPLES alcCaptureSamples{nullptr};
+
+    PFNALCSETTHREADCONTEXTPROC alcSetThreadContext{nullptr};
+    PFNALCGETTHREADCONTEXTPROC alcGetThreadContext{nullptr};
+
+    LPALENABLE alEnable{nullptr};
+    LPALDISABLE alDisable{nullptr};
+    LPALISENABLED alIsEnabled{nullptr};
+    LPALGETSTRING alGetString{nullptr};
+    LPALGETBOOLEANV alGetBooleanv{nullptr};
+    LPALGETINTEGERV alGetIntegerv{nullptr};
+    LPALGETFLOATV alGetFloatv{nullptr};
+    LPALGETDOUBLEV alGetDoublev{nullptr};
+    LPALGETBOOLEAN alGetBoolean{nullptr};
+    LPALGETINTEGER alGetInteger{nullptr};
+    LPALGETFLOAT alGetFloat{nullptr};
+    LPALGETDOUBLE alGetDouble{nullptr};
+    LPALGETERROR alGetError{nullptr};
+    LPALISEXTENSIONPRESENT alIsExtensionPresent{nullptr};
+    LPALGETPROCADDRESS alGetProcAddress{nullptr};
+    LPALGETENUMVALUE alGetEnumValue{nullptr};
+    LPALLISTENERF alListenerf{nullptr};
+    LPALLISTENER3F alListener3f{nullptr};
+    LPALLISTENERFV alListenerfv{nullptr};
+    LPALLISTENERI alListeneri{nullptr};
+    LPALLISTENER3I alListener3i{nullptr};
+    LPALLISTENERIV alListeneriv{nullptr};
+    LPALGETLISTENERF alGetListenerf{nullptr};
+    LPALGETLISTENER3F alGetListener3f{nullptr};
+    LPALGETLISTENERFV alGetListenerfv{nullptr};
+    LPALGETLISTENERI alGetListeneri{nullptr};
+    LPALGETLISTENER3I alGetListener3i{nullptr};
+    LPALGETLISTENERIV alGetListeneriv{nullptr};
+    LPALGENSOURCES alGenSources{nullptr};
+    LPALDELETESOURCES alDeleteSources{nullptr};
+    LPALISSOURCE alIsSource{nullptr};
+    LPALSOURCEF alSourcef{nullptr};
+    LPALSOURCE3F alSource3f{nullptr};
+    LPALSOURCEFV alSourcefv{nullptr};
+    LPALSOURCEI alSourcei{nullptr};
+    LPALSOURCE3I alSource3i{nullptr};
+    LPALSOURCEIV alSourceiv{nullptr};
+    LPALGETSOURCEF alGetSourcef{nullptr};
+    LPALGETSOURCE3F alGetSource3f{nullptr};
+    LPALGETSOURCEFV alGetSourcefv{nullptr};
+    LPALGETSOURCEI alGetSourcei{nullptr};
+    LPALGETSOURCE3I alGetSource3i{nullptr};
+    LPALGETSOURCEIV alGetSourceiv{nullptr};
+    LPALSOURCEPLAYV alSourcePlayv{nullptr};
+    LPALSOURCESTOPV alSourceStopv{nullptr};
+    LPALSOURCEREWINDV alSourceRewindv{nullptr};
+    LPALSOURCEPAUSEV alSourcePausev{nullptr};
+    LPALSOURCEPLAY alSourcePlay{nullptr};
+    LPALSOURCESTOP alSourceStop{nullptr};
+    LPALSOURCEREWIND alSourceRewind{nullptr};
+    LPALSOURCEPAUSE alSourcePause{nullptr};
+    LPALSOURCEQUEUEBUFFERS alSourceQueueBuffers{nullptr};
+    LPALSOURCEUNQUEUEBUFFERS alSourceUnqueueBuffers{nullptr};
+    LPALGENBUFFERS alGenBuffers{nullptr};
+    LPALDELETEBUFFERS alDeleteBuffers{nullptr};
+    LPALISBUFFER alIsBuffer{nullptr};
+    LPALBUFFERF alBufferf{nullptr};
+    LPALBUFFER3F alBuffer3f{nullptr};
+    LPALBUFFERFV alBufferfv{nullptr};
+    LPALBUFFERI alBufferi{nullptr};
+    LPALBUFFER3I alBuffer3i{nullptr};
+    LPALBUFFERIV alBufferiv{nullptr};
+    LPALGETBUFFERF alGetBufferf{nullptr};
+    LPALGETBUFFER3F alGetBuffer3f{nullptr};
+    LPALGETBUFFERFV alGetBufferfv{nullptr};
+    LPALGETBUFFERI alGetBufferi{nullptr};
+    LPALGETBUFFER3I alGetBuffer3i{nullptr};
+    LPALGETBUFFERIV alGetBufferiv{nullptr};
+    LPALBUFFERDATA alBufferData{nullptr};
+    LPALDOPPLERFACTOR alDopplerFactor{nullptr};
+    LPALDOPPLERVELOCITY alDopplerVelocity{nullptr};
+    LPALSPEEDOFSOUND alSpeedOfSound{nullptr};
+    LPALDISTANCEMODEL alDistanceModel{nullptr};
+
+    /* Functions to load after first context creation. */
+    LPALGENFILTERS alGenFilters{nullptr};
+    LPALDELETEFILTERS alDeleteFilters{nullptr};
+    LPALISFILTER alIsFilter{nullptr};
+    LPALFILTERF alFilterf{nullptr};
+    LPALFILTERFV alFilterfv{nullptr};
+    LPALFILTERI alFilteri{nullptr};
+    LPALFILTERIV alFilteriv{nullptr};
+    LPALGETFILTERF alGetFilterf{nullptr};
+    LPALGETFILTERFV alGetFilterfv{nullptr};
+    LPALGETFILTERI alGetFilteri{nullptr};
+    LPALGETFILTERIV alGetFilteriv{nullptr};
+    LPALGENEFFECTS alGenEffects{nullptr};
+    LPALDELETEEFFECTS alDeleteEffects{nullptr};
+    LPALISEFFECT alIsEffect{nullptr};
+    LPALEFFECTF alEffectf{nullptr};
+    LPALEFFECTFV alEffectfv{nullptr};
+    LPALEFFECTI alEffecti{nullptr};
+    LPALEFFECTIV alEffectiv{nullptr};
+    LPALGETEFFECTF alGetEffectf{nullptr};
+    LPALGETEFFECTFV alGetEffectfv{nullptr};
+    LPALGETEFFECTI alGetEffecti{nullptr};
+    LPALGETEFFECTIV alGetEffectiv{nullptr};
+    LPALGENAUXILIARYEFFECTSLOTS alGenAuxiliaryEffectSlots{nullptr};
+    LPALDELETEAUXILIARYEFFECTSLOTS alDeleteAuxiliaryEffectSlots{nullptr};
+    LPALISAUXILIARYEFFECTSLOT alIsAuxiliaryEffectSlot{nullptr};
+    LPALAUXILIARYEFFECTSLOTF alAuxiliaryEffectSlotf{nullptr};
+    LPALAUXILIARYEFFECTSLOTFV alAuxiliaryEffectSlotfv{nullptr};
+    LPALAUXILIARYEFFECTSLOTI alAuxiliaryEffectSloti{nullptr};
+    LPALAUXILIARYEFFECTSLOTIV alAuxiliaryEffectSlotiv{nullptr};
+    LPALGETAUXILIARYEFFECTSLOTF alGetAuxiliaryEffectSlotf{nullptr};
+    LPALGETAUXILIARYEFFECTSLOTFV alGetAuxiliaryEffectSlotfv{nullptr};
+    LPALGETAUXILIARYEFFECTSLOTI alGetAuxiliaryEffectSloti{nullptr};
+    LPALGETAUXILIARYEFFECTSLOTIV alGetAuxiliaryEffectSlotiv{nullptr};
+
+    template<typename T>
+    DriverIface(T&& name, HMODULE mod)
+      : Name(std::forward<T>(name)), Module(mod)
+    { }
+    ~DriverIface()
+    {
+        if(Module)
+            FreeLibrary(Module);
+        Module = nullptr;
+    }
+};
+using DriverIfacePtr = std::unique_ptr<DriverIface>;
+
+extern std::vector<DriverIfacePtr> DriverList;
+
+extern thread_local DriverIface *ThreadCtxDriver;
+extern std::atomic<DriverIface*> CurrentCtxDriver;
+
+/* HACK: MinGW generates bad code when accessing an extern thread_local object.
+ * Add a wrapper function for it that only accesses it where it's defined.
+ */
+#ifdef __MINGW32__
+DriverIface *GetThreadDriver() noexcept;
+void SetThreadDriver(DriverIface *driver) noexcept;
+#else
+inline DriverIface *GetThreadDriver() noexcept { return ThreadCtxDriver; }
+inline void SetThreadDriver(DriverIface *driver) noexcept { ThreadCtxDriver = driver; }
+#endif
+
+
+class PtrIntMap {
+    void **mKeys{nullptr};
+    /* Shares memory with keys. */
+    int *mValues{nullptr};
+
+    ALsizei mSize{0};
+    ALsizei mCapacity{0};
+    std::mutex mLock;
+
+public:
+    PtrIntMap() = default;
+    ~PtrIntMap();
+
+    ALenum insert(void *key, int value);
+    int removeByKey(void *key);
+    int lookupByKey(void *key);
+};
+
+
+enum LogLevel {
+    LogLevel_None  = 0,
+    LogLevel_Error = 1,
+    LogLevel_Warn  = 2,
+    LogLevel_Trace = 3,
+};
+extern enum LogLevel LogLevel;
+extern FILE *LogFile;
+
+#define TRACE(...) do {                                   \
+    if(LogLevel >= LogLevel_Trace)                        \
+    {                                                     \
+        fprintf(LogFile, "AL Router (II): " __VA_ARGS__); \
+        fflush(LogFile);                                  \
+    }                                                     \
+} while(0)
+#define WARN(...) do {                                    \
+    if(LogLevel >= LogLevel_Warn)                         \
+    {                                                     \
+        fprintf(LogFile, "AL Router (WW): " __VA_ARGS__); \
+        fflush(LogFile);                                  \
+    }                                                     \
+} while(0)
+#define ERR(...) do {                                     \
+    if(LogLevel >= LogLevel_Error)                        \
+    {                                                     \
+        fprintf(LogFile, "AL Router (EE): " __VA_ARGS__); \
+        fflush(LogFile);                                  \
+    }                                                     \
+} while(0)
+
+#endif /* ROUTER_ROUTER_H */