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/**
* @file media_plugin_base.h
* @brief Media plugin base class for LLMedia API plugin system
*
* $LicenseInfo:firstyear=2008&license=viewergpl$
*
* Copyright (c) 2008, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llplugininstance.h"
#include "llpluginmessage.h"
#include "llpluginmessageclasses.h"
class MediaPluginBase
{
public:
MediaPluginBase(LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data);
virtual ~MediaPluginBase() {}
virtual void receiveMessage(const char *message_string) = 0;
static void staticReceiveMessage(const char *message_string, void **user_data);
protected:
typedef enum
{
STATUS_NONE,
STATUS_LOADING,
STATUS_LOADED,
STATUS_ERROR,
STATUS_PLAYING,
STATUS_PAUSED,
STATUS_DONE
} EStatus;
class SharedSegmentInfo
{
public:
void *mAddress;
size_t mSize;
};
void sendMessage(const LLPluginMessage &message);
void sendStatus();
std::string statusString();
void setStatus(EStatus status);
// The quicktime plugin overrides this to add current time and duration to the message...
virtual void setDirty(int left, int top, int right, int bottom);
typedef std::map<std::string, SharedSegmentInfo> SharedSegmentMap;
LLPluginInstance::sendMessageFunction mHostSendFunction;
void *mHostUserData;
bool mDeleteMe;
unsigned char* mPixels;
std::string mTextureSegmentName;
int mWidth;
int mHeight;
int mTextureWidth;
int mTextureHeight;
int mDepth;
EStatus mStatus;
SharedSegmentMap mSharedSegments;
};
// The plugin must define this function to create its instance.
int init_media_plugin(
LLPluginInstance::sendMessageFunction host_send_func,
void *host_user_data,
LLPluginInstance::sendMessageFunction *plugin_send_func,
void **plugin_user_data);
// It should look something like this:
/*
{
MediaPluginFoo *self = new MediaPluginFoo(host_send_func, host_user_data);
*plugin_send_func = MediaPluginFoo::staticReceiveMessage;
*plugin_user_data = (void*)self;
return 0;
}
*/
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