Replacement for RaidenII's background music playing

fakecd.cpp

#include <windows.h>
#include <string.h>
#include <stdio.h>
#include "audiere.h"
using namespace audiere;

#define FAKECD_API __declspec(dllexport)

AudioDevicePtr g_device = 0;
OutputStreamPtr g_stream = 0;
StopCallbackPtr g_callback = 0;
unsigned int g_volume = 100;
signed int (*g_stop_callback)(int, int, int) = 0;

#ifdef NDEBUG
    #define dbgprint(format, args...)
#else
    #define dbgprint(format, args...) \
    { \
        char buffer[1024]; \
        sprintf(buffer, format, ##args); \
        OutputDebugString(buffer); \
    }
#endif

class fakecd_stop_callback : public RefImplementation<StopCallback>
{
public:
    void ADR_CALL streamStopped(StopEvent* event)
    {
        if (event->getReason() == StopEvent::STREAM_ENDED)
        {
            dbgprint("FAKECD_CALLBACK");

            if (g_stop_callback)
                g_stop_callback(0, 0, 0);
        }
    }
};

extern "C"
{

FAKECD_API DWORD fakecd_init(signed int (*stop_callback)(int, int, int))
{
    dbgprint("FAKECD_INIT: %x", (int)stop_callback);

    g_device = OpenDevice();
    if (!g_device)
        return EXIT_FAILURE;

    g_callback = new fakecd_stop_callback();
    g_device->registerCallback(g_callback.get());
    g_stop_callback = stop_callback;

    return EXIT_SUCCESS;
}

FAKECD_API DWORD fakecd_play(unsigned char track)
{
    dbgprint("FAKECD_PLAY: %d", (int)track);

    if (!g_device)
        return EXIT_FAILURE;

    char base_path[MAX_PATH];
    HMODULE happ = GetModuleHandle(0);
    GetModuleFileName(happ, base_path, MAX_PATH);
    int i = strlen(base_path) - 1;
    while (i > 0 && base_path[i] != '\\') i--;
    base_path[i] = 0;

    char ogg_path[MAX_PATH];
    sprintf(ogg_path, "%s\\MUSIC\\BGM%02d.OGG", base_path, track);
    dbgprint("FILE: %s", ogg_path);
    g_stream = OpenSound(g_device, ogg_path, true, FF_OGG);
    if (!g_stream)
        return EXIT_FAILURE;

    g_stream->setVolume(g_volume / 100.0);
    g_stream->play();

    return EXIT_SUCCESS;
}

FAKECD_API DWORD fakecd_pause()
{
    dbgprint("FAKECD_PAUSE");

    if (g_stream)
        g_stream->stop();

    return EXIT_SUCCESS;
}

FAKECD_API DWORD fakecd_resume()
{
    dbgprint("FAKECD_RESUME");

    if (g_stream)
        g_stream->play();

    return EXIT_SUCCESS;
}

FAKECD_API DWORD fakecd_stop()
{
    dbgprint("FAKECD_STOP");

    fakecd_pause();
    g_stream = 0;

    return EXIT_SUCCESS;
}

FAKECD_API DWORD fakecd_set_volume(unsigned int volume)
{
    dbgprint("FAKECD_VOLUME: %d", (int)volume);

    g_volume = volume;
    if (g_volume > 100)
        g_volume = 100;

    if (g_stream)
        g_stream->setVolume(g_volume / 100.0);

    return EXIT_SUCCESS;
}

FAKECD_API DWORD fakecd_uninit()
{
    dbgprint("FAKECD_UNINIT");

    fakecd_stop();

    g_device = 0;
    g_callback = 0;

    return EXIT_SUCCESS;
}

BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    if (fdwReason == DLL_PROCESS_DETACH)
        fakecd_uninit();

    return TRUE;
}

}