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Merge pull request #1978 from moadib/bb_cocosdenshion_background_music 

fixed #1709: Added support for multiple background music sources to CocosDenshion for BB.
This commit is contained in:
James Chen 2013-02-15 19:01:57 -08:00
parent 3949f0c70f b5fd738ec5
commit f392fe2ea0
1 changed files with 67 additions and 31 deletions
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98
CocosDenshion/blackberry/SimpleAudioEngine.cpp
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@ -58,11 +58,15 @@ namespace CocosDenshion
static float s_volume = 1.0f;
static float s_effectVolume = 1.0f;
static bool s_isBackgroundInitialized = false;
static std::string s_currentBackgroundStr;
ALuint s_backgroundBuffer;
ALuint s_backgroundSource;
struct backgroundMusicData {
ALuint buffer;
ALuint source;
};
typedef map<string, backgroundMusicData *> BackgroundMusicsMap;
BackgroundMusicsMap s_backgroundMusics;
static ALuint s_backgroundSource = AL_NONE;
static SimpleAudioEngine *s_engine = 0;
@ -101,18 +105,26 @@ namespace CocosDenshion
static void stopBackground(bool bReleaseData)
{
alSourceStop(s_backgroundSource);
alSourceStop(s_backgroundSource);
if (bReleaseData)
{
s_currentBackgroundStr = "";
s_isBackgroundInitialized = false;
alDeleteBuffers(1, &s_backgroundBuffer);
checkALError("stopBackground");
alDeleteSources(1, &s_backgroundSource);
checkALError("stopBackground");
for (BackgroundMusicsMap::iterator it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
if (it->second->source == s_backgroundSource)
{
alDeleteBuffers(1, &it->second->buffer);
checkALError("stopBackground");
alDeleteSources(1, &it->second->source);
checkALError("stopBackground");
delete it->second;
s_backgroundMusics.erase(it);
break;
}
}
}
s_backgroundSource = AL_NONE;
}
static void setBackgroundVolume(float volume)
@ -158,6 +170,18 @@ namespace CocosDenshion
// and the background too
stopBackground(true);
for (BackgroundMusicsMap::iterator it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
alSourceStop(it->second->source);
checkALError("end");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end");
alDeleteSources(1, &it->second->source);
checkALError("end");
delete it->second;
}
s_backgroundMusics.clear();
}
//
@ -262,52 +286,64 @@ namespace CocosDenshion
// Changing file path to full path
std::string fullPath = CCFileUtils::sharedFileUtils()->fullPathForFilename(pszFilePath);
if (!s_isBackgroundInitialized || s_currentBackgroundStr != fullPath)
BackgroundMusicsMap::const_iterator it = s_backgroundMusics.find(fullPath);
if (it == s_backgroundMusics.end())
{
string path = fullPath;
if (isOGGFile(path.data()))
ALuint buffer = AL_NONE;
if (isOGGFile(fullPath.data()))
{
s_backgroundBuffer = createBufferFromOGG(path.data());
buffer = createBufferFromOGG(fullPath.data());
}
else
{
s_backgroundBuffer = alutCreateBufferFromFile(path.data());
buffer = alutCreateBufferFromFile(fullPath.data());
}
checkALError("preloadBackgroundMusic");
if (s_backgroundBuffer == AL_NONE)
if (buffer == AL_NONE)
{
fprintf(stderr, "Error loading file: '%s'\n", path.data());
alDeleteBuffers(1, &s_backgroundBuffer);
fprintf(stderr, "Error loading file: '%s'\n", fullPath.data());
alDeleteBuffers(1, &buffer);
return;
}
alGenSources(1, &s_backgroundSource);
ALuint source = AL_NONE;
alGenSources(1, &source);
checkALError("preloadBackgroundMusic");
alSourcei(s_backgroundSource, AL_BUFFER, s_backgroundBuffer);
alSourcei(source, AL_BUFFER, buffer);
checkALError("preloadBackgroundMusic");
s_currentBackgroundStr = fullPath;
backgroundMusicData* data = new backgroundMusicData();
data->buffer = buffer;
data->source = source;
s_backgroundMusics.insert(BackgroundMusicsMap::value_type(fullPath, data));
}
s_currentBackgroundStr = fullPath;
s_isBackgroundInitialized = true;
}
void SimpleAudioEngine::playBackgroundMusic(const char* pszFilePath, bool bLoop)
{
if (s_backgroundSource != AL_NONE)
stopBackgroundMusic(false);
// Changing file path to full path
std::string fullPath = CCFileUtils::sharedFileUtils()->fullPathForFilename(pszFilePath);
if (!s_isBackgroundInitialized)
BackgroundMusicsMap::const_iterator it = s_backgroundMusics.find(fullPath);
if (it == s_backgroundMusics.end())
{
preloadBackgroundMusic(fullPath.c_str());
it = s_backgroundMusics.find(fullPath);
}
alSourcei(s_backgroundSource, AL_LOOPING, bLoop ? AL_TRUE : AL_FALSE);
alSourcePlay(s_backgroundSource);
checkALError("playBackgroundMusic");
if (it != s_backgroundMusics.end())
{
s_backgroundSource = it->second->source;
alSourcei(s_backgroundSource, AL_LOOPING, bLoop ? AL_TRUE : AL_FALSE);
alSourcePlay(s_backgroundSource);
checkALError("playBackgroundMusic");
}
}
void SimpleAudioEngine::stopBackgroundMusic(bool bReleaseData)