SOCIAL-318 FIX Example plugin doesn't render anything

1 files changed, 329 insertions, 404 deletions

diff --git a/indra/media_plugins/example/media_plugin_example.cpp b/indra/media_plugins/example/media_plugin_example.cpp
index f8a871930e..da7de01799 100644
--- a/indra/media_plugins/example/media_plugin_example.cpp
+++ b/indra/media_plugins/example/media_plugin_example.cpp
@@ -6,21 +6,21 @@
  * $LicenseInfo:firstyear=2008&license=viewerlgpl$
  * Second Life Viewer Source Code
  * Copyright (C) 2010, Linden Research, Inc.
- * 
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation;
  * version 2.1 of the License only.
- * 
+ *
  * 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
  * Lesser General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Lesser 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
- * 
+ *
  * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
  * $/LicenseInfo$
  * @endcond
@@ -39,48 +39,48 @@
 ////////////////////////////////////////////////////////////////////////////////
 //
 class MediaPluginExample :
-		public MediaPluginBase
+        public MediaPluginBase
 {
-	public:
-		MediaPluginExample( LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data );
-		~MediaPluginExample();
-
-		/*virtual*/ void receiveMessage( const char* message_string );
-
-	private:
-		bool init();
-		void update( F64 milliseconds );
-		void write_pixel( int x, int y, unsigned char r, unsigned char g, unsigned char b );
-		bool mFirstTime;
-
-		time_t mLastUpdateTime;
-		enum Constants { ENumObjects = 10 };
-		unsigned char* mBackgroundPixels;
-		int mColorR[ ENumObjects ];
-		int mColorG[ ENumObjects ];
-		int mColorB[ ENumObjects ];
-		int mXpos[ ENumObjects ];
-		int mYpos[ ENumObjects ];
-		int mXInc[ ENumObjects ];
-		int mYInc[ ENumObjects ];
-		int mBlockSize[ ENumObjects ];
-		bool mMouseButtonDown;
-		bool mStopAction;
+    public:
+        MediaPluginExample( LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data );
+        ~MediaPluginExample();
+
+        /*virtual*/ void receiveMessage( const char* message_string );
+
+    private:
+        bool init();
+        void update( F64 milliseconds );
+        void write_pixel( int x, int y, unsigned char r, unsigned char g, unsigned char b );
+        bool mFirstTime;
+
+        time_t mLastUpdateTime;
+        enum Constants { ENumObjects = 10 };
+        unsigned char* mBackgroundPixels;
+        int mColorR[ ENumObjects ];
+        int mColorG[ ENumObjects ];
+        int mColorB[ ENumObjects ];
+        int mXpos[ ENumObjects ];
+        int mYpos[ ENumObjects ];
+        int mXInc[ ENumObjects ];
+        int mYInc[ ENumObjects ];
+        int mBlockSize[ ENumObjects ];
+        bool mMouseButtonDown;
+        bool mStopAction;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 MediaPluginExample::MediaPluginExample( LLPluginInstance::sendMessageFunction host_send_func, void *host_user_data ) :
-	MediaPluginBase( host_send_func, host_user_data )
+    MediaPluginBase( host_send_func, host_user_data )
 {
-	mFirstTime = true;
-	mWidth = 0;
-	mHeight = 0;
-	mDepth = 4;
-	mPixels = 0;
-	mMouseButtonDown = false;
-	mStopAction = false;
-	mLastUpdateTime = 0;
+    mFirstTime = true;
+    mWidth = 0;
+    mHeight = 0;
+    mDepth = 4;
+    mPixels = 0;
+    mMouseButtonDown = false;
+    mStopAction = false;
+    mLastUpdateTime = 0;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -93,395 +93,320 @@ MediaPluginExample::~MediaPluginExample()
 //
 void MediaPluginExample::receiveMessage( const char* message_string )
 {
-	LLPluginMessage message_in;
-
-	if ( message_in.parse( message_string ) >= 0 )
-	{
-		std::string message_class = message_in.getClass();
-		std::string message_name = message_in.getName();
-
-		if ( message_class == LLPLUGIN_MESSAGE_CLASS_BASE )
-		{
-			if ( message_name == "init" )
-			{
-				LLPluginMessage message( "base", "init_response" );
-				LLSD versions = LLSD::emptyMap();
-				versions[ LLPLUGIN_MESSAGE_CLASS_BASE ] = LLPLUGIN_MESSAGE_CLASS_BASE_VERSION;
-				versions[ LLPLUGIN_MESSAGE_CLASS_MEDIA ] = LLPLUGIN_MESSAGE_CLASS_MEDIA_VERSION;
-				versions[ LLPLUGIN_MESSAGE_CLASS_MEDIA_BROWSER ] = LLPLUGIN_MESSAGE_CLASS_MEDIA_BROWSER_VERSION;
-				message.setValueLLSD( "versions", versions );
-
-				std::string plugin_version = "Example media plugin, Example Version 1.0.0.0";
-				message.setValue( "plugin_version", plugin_version );
-				sendMessage( message );
-			}
-			else
-			if ( message_name == "idle" )
-			{
-				// no response is necessary here.
-				F64 time = message_in.getValueReal( "time" );
-
-				// Convert time to milliseconds for update()
-				update( time );
-			}
-			else
-			if ( message_name == "cleanup" )
-			{
-				// clean up here
-			}
-			else
-			if ( message_name == "shm_added" )
-			{
-				SharedSegmentInfo info;
-				info.mAddress = message_in.getValuePointer( "address" );
-				info.mSize = ( size_t )message_in.getValueS32( "size" );
-				std::string name = message_in.getValue( "name" );
-
-				mSharedSegments.insert( SharedSegmentMap::value_type( name, info ) );
-
-			}
-			else
-			if ( message_name == "shm_remove" )
-			{
-				std::string name = message_in.getValue( "name" );
-
-				SharedSegmentMap::iterator iter = mSharedSegments.find( name );
-				if( iter != mSharedSegments.end() )
-				{
-					if ( mPixels == iter->second.mAddress )
-					{
-						// This is the currently active pixel buffer.
-						// Make sure we stop drawing to it.
-						mPixels = NULL;
-						mTextureSegmentName.clear();
-					};
-					mSharedSegments.erase( iter );
-				}
-				else
-				{
-					//std::cerr << "MediaPluginExample::receiveMessage: unknown shared memory region!" << std::endl;
-				};
-
-				// Send the response so it can be cleaned up.
-				LLPluginMessage message( "base", "shm_remove_response" );
-				message.setValue( "name", name );
-				sendMessage( message );
-			}
-			else
-			{
-				//std::cerr << "MediaPluginExample::receiveMessage: unknown base message: " << message_name << std::endl;
-			};
-		}
-		else
-		if ( message_class == LLPLUGIN_MESSAGE_CLASS_MEDIA )
-		{
-			if ( message_name == "init" )
-			{
-				// Plugin gets to decide the texture parameters to use.
-				LLPluginMessage message( LLPLUGIN_MESSAGE_CLASS_MEDIA, "texture_params" );
-				message.setValueS32( "default_width", mWidth );
-				message.setValueS32( "default_height", mHeight );
-				message.setValueS32( "depth", mDepth );
-				message.setValueU32( "internalformat", GL_RGBA );
-				message.setValueU32( "format", GL_RGBA );
-				message.setValueU32( "type", GL_UNSIGNED_BYTE );
-				message.setValueBoolean( "coords_opengl", false );
-				sendMessage( message );
-			}
-			else if ( message_name == "size_change" )
-			{
-				std::string name = message_in.getValue( "name" );
-				S32 width = message_in.getValueS32( "width" );
-				S32 height = message_in.getValueS32( "height" );
-				S32 texture_width = message_in.getValueS32( "texture_width" );
-				S32 texture_height = message_in.getValueS32( "texture_height" );
-
-				if ( ! name.empty() )
-				{
-					// Find the shared memory region with this name
-					SharedSegmentMap::iterator iter = mSharedSegments.find( name );
-					if ( iter != mSharedSegments.end() )
-					{
-						mPixels = ( unsigned char* )iter->second.mAddress;
-						mWidth = width;
-						mHeight = height;
-
-						mTextureWidth = texture_width;
-						mTextureHeight = texture_height;
-
-						init();
-					};
-				};
-
-				LLPluginMessage message( LLPLUGIN_MESSAGE_CLASS_MEDIA, "size_change_response" );
-				message.setValue( "name", name );
-				message.setValueS32( "width", width );
-				message.setValueS32( "height", height );
-				message.setValueS32( "texture_width", texture_width );
-				message.setValueS32( "texture_height", texture_height );
-				sendMessage( message );
-			}
-			else
-			if ( message_name == "load_uri" )
-			{
-				std::string uri = message_in.getValue( "uri" );
-				if ( ! uri.empty() )
-				{
-				};
-			}
-			else
-			if ( message_name == "mouse_event" )
-			{
-				std::string event = message_in.getValue( "event" );
-				S32 button = message_in.getValueS32( "button" );
-
-				// left mouse button
-				if ( button == 0 )
-				{
-					int mouse_x = message_in.getValueS32( "x" );
-					int mouse_y = message_in.getValueS32( "y" );
-					std::string modifiers = message_in.getValue( "modifiers" );
-
-					if ( event == "move" )
-					{
-						if ( mMouseButtonDown )
-							write_pixel( mouse_x, mouse_y, rand() % 0x80 + 0x80, rand() % 0x80 + 0x80, rand() % 0x80 + 0x80 );
-					}
-					else
-					if ( event == "down" )
-					{
-						mMouseButtonDown = true;
-					}
-					else
-					if ( event == "up" )
-					{
-						mMouseButtonDown = false;
-					}
-					else
-					if ( event == "double_click" )
-					{
-					};
-				};
-			}
-			else
-			if ( message_name == "key_event" )
-			{
-				std::string event = message_in.getValue( "event" );
-				S32 key = message_in.getValueS32( "key" );
-				std::string modifiers = message_in.getValue( "modifiers" );
-
-				if ( event == "down" )
-				{
-					if ( key == ' ')
-					{
-						mLastUpdateTime = 0;
-						update( 0.0f );
-					};
-				};
-			}
-			else
-			{
-				//std::cerr << "MediaPluginExample::receiveMessage: unknown media message: " << message_string << std::endl;
-			};
-		}
-		else
-		if ( message_class == LLPLUGIN_MESSAGE_CLASS_MEDIA_BROWSER )
-		{
-			if ( message_name == "browse_reload" )
-			{
-				mLastUpdateTime = 0;
-				mFirstTime = true;
-				mStopAction = false;
-				update( 0.0f );
-			}
-			else
-			if ( message_name == "browse_stop" )
-			{
-				for( int n = 0; n < ENumObjects; ++n )
-					mXInc[ n ] = mYInc[ n ] = 0;
-
-				mStopAction = true;
-				update( 0.0f );
-			}
-			else
-			{
-				//std::cerr << "MediaPluginExample::receiveMessage: unknown media_browser message: " << message_string << std::endl;
-			};
-		}
-		else
-		{
-			//std::cerr << "MediaPluginExample::receiveMessage: unknown message class: " << message_class << std::endl;
-		};
-	};
+//  std::cerr << "MediaPluginWebKit::receiveMessage: received message: \"" << message_string << "\"" << std::endl;
+    LLPluginMessage message_in;
+
+    if(message_in.parse(message_string) >= 0)
+    {
+        std::string message_class = message_in.getClass();
+        std::string message_name = message_in.getName();
+        if(message_class == LLPLUGIN_MESSAGE_CLASS_BASE)
+        {
+            if(message_name == "init")
+            {
+                LLPluginMessage message("base", "init_response");
+                LLSD versions = LLSD::emptyMap();
+                versions[LLPLUGIN_MESSAGE_CLASS_BASE] = LLPLUGIN_MESSAGE_CLASS_BASE_VERSION;
+                versions[LLPLUGIN_MESSAGE_CLASS_MEDIA] = LLPLUGIN_MESSAGE_CLASS_MEDIA_VERSION;
+                versions[LLPLUGIN_MESSAGE_CLASS_MEDIA_BROWSER] = LLPLUGIN_MESSAGE_CLASS_MEDIA_BROWSER_VERSION;
+                message.setValueLLSD("versions", versions);
+
+                std::string plugin_version = "Example plugin 1.0..0";
+                message.setValue("plugin_version", plugin_version);
+                sendMessage(message);
+            }
+            else if(message_name == "idle")
+            {
+                // no response is necessary here.
+                F64 time = message_in.getValueReal("time");
+
+                // Convert time to milliseconds for update()
+                update((int)(time * 1000.0f));
+            }
+            else if(message_name == "cleanup")
+            {
+            }
+            else if(message_name == "shm_added")
+            {
+                SharedSegmentInfo info;
+                info.mAddress = message_in.getValuePointer("address");
+                info.mSize = (size_t)message_in.getValueS32("size");
+                std::string name = message_in.getValue("name");
+
+                mSharedSegments.insert(SharedSegmentMap::value_type(name, info));
+
+            }
+            else if(message_name == "shm_remove")
+            {
+                std::string name = message_in.getValue("name");
+
+                SharedSegmentMap::iterator iter = mSharedSegments.find(name);
+                if(iter != mSharedSegments.end())
+                {
+                    if(mPixels == iter->second.mAddress)
+                    {
+                        // This is the currently active pixel buffer.  Make sure we stop drawing to it.
+                        mPixels = NULL;
+                        mTextureSegmentName.clear();
+                    }
+                    mSharedSegments.erase(iter);
+                }
+                else
+                {
+//                  std::cerr << "MediaPluginWebKit::receiveMessage: unknown shared memory region!" << std::endl;
+                }
+
+                // Send the response so it can be cleaned up.
+                LLPluginMessage message("base", "shm_remove_response");
+                message.setValue("name", name);
+                sendMessage(message);
+            }
+            else
+            {
+//              std::cerr << "MediaPluginWebKit::receiveMessage: unknown base message: " << message_name << std::endl;
+            }
+        }
+        else if(message_class == LLPLUGIN_MESSAGE_CLASS_MEDIA)
+        {
+            if(message_name == "init")
+            {
+                // Plugin gets to decide the texture parameters to use.
+                mDepth = 4;
+                LLPluginMessage message(LLPLUGIN_MESSAGE_CLASS_MEDIA, "texture_params");
+                message.setValueS32("default_width", 1024);
+                message.setValueS32("default_height", 1024);
+                message.setValueS32("depth", mDepth);
+                message.setValueU32("internalformat", GL_RGBA);
+                message.setValueU32("format", GL_RGBA);
+                message.setValueU32("type", GL_UNSIGNED_BYTE);
+                message.setValueBoolean("coords_opengl", true);
+                sendMessage(message);
+            }
+            else if(message_name == "size_change")
+            {
+                std::string name = message_in.getValue("name");
+                S32 width = message_in.getValueS32("width");
+                S32 height = message_in.getValueS32("height");
+                S32 texture_width = message_in.getValueS32("texture_width");
+                S32 texture_height = message_in.getValueS32("texture_height");
+
+                if(!name.empty())
+                {
+                    // Find the shared memory region with this name
+                    SharedSegmentMap::iterator iter = mSharedSegments.find(name);
+                    if(iter != mSharedSegments.end())
+                    {
+                        mPixels = (unsigned char*)iter->second.mAddress;
+                        mWidth = width;
+                        mHeight = height;
+
+                        mTextureWidth = texture_width;
+                        mTextureHeight = texture_height;
+                    };
+                };
+
+                LLPluginMessage message(LLPLUGIN_MESSAGE_CLASS_MEDIA, "size_change_response");
+                message.setValue("name", name);
+                message.setValueS32("width", width);
+                message.setValueS32("height", height);
+                message.setValueS32("texture_width", texture_width);
+                message.setValueS32("texture_height", texture_height);
+                sendMessage(message);
+
+            }
+            else if(message_name == "load_uri")
+            {
+            }
+            else if(message_name == "mouse_event")
+            {
+                std::string event = message_in.getValue("event");
+                if(event == "down")
+                {
+
+                }
+                else if(event == "up")
+                {
+                }
+                else if(event == "double_click")
+                {
+                }
+            }
+        }
+        else
+        {
+//          std::cerr << "MediaPluginWebKit::receiveMessage: unknown message class: " << message_class << std::endl;
+        };
+    }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 void MediaPluginExample::write_pixel( int x, int y, unsigned char r, unsigned char g, unsigned char b )
 {
-	// make sure we don't write outside the buffer
-	if ( ( x < 0 ) || ( x >= mWidth ) || ( y < 0 ) || ( y >= mHeight ) )
-		return;
-		
-	if ( mBackgroundPixels != NULL )
-	{
-		unsigned char *pixel = mBackgroundPixels;
-		pixel += y * mWidth * mDepth;
-		pixel += ( x * mDepth );
-		pixel[ 0 ] = b;
-		pixel[ 1 ] = g;
-		pixel[ 2 ] = r;
-
-		setDirty( x, y, x + 1, y + 1 );
-	};
+    // make sure we don't write outside the buffer
+    if ( ( x < 0 ) || ( x >= mWidth ) || ( y < 0 ) || ( y >= mHeight ) )
+        return;
+
+    if ( mBackgroundPixels != NULL )
+    {
+        unsigned char *pixel = mBackgroundPixels;
+        pixel += y * mWidth * mDepth;
+        pixel += ( x * mDepth );
+        pixel[ 0 ] = b;
+        pixel[ 1 ] = g;
+        pixel[ 2 ] = r;
+
+        setDirty( x, y, x + 1, y + 1 );
+    };
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 void MediaPluginExample::update( F64 milliseconds )
 {
-	if ( mWidth < 1 || mWidth > 2048 || mHeight < 1 || mHeight > 2048 )
-		return;
-
-	if ( mPixels == 0 )
-			return;
-
-	if ( mFirstTime )
-	{
-		for( int n = 0; n < ENumObjects; ++n )
-		{
-			mXpos[ n ] = ( mWidth / 2 ) + rand() % ( mWidth / 16 ) - ( mWidth / 32 );
-			mYpos[ n ] = ( mHeight / 2 ) + rand() % ( mHeight / 16 ) - ( mHeight / 32 );
-
-			mColorR[ n ] = rand() % 0x60 + 0x60;
-			mColorG[ n ] = rand() % 0x60 + 0x60;
-			mColorB[ n ] = rand() % 0x60 + 0x60;
-
-			mXInc[ n ] = 0;
-			while ( mXInc[ n ] == 0 )
-				mXInc[ n ] = rand() % 7 - 3;
-
-			mYInc[ n ] = 0;
-			while ( mYInc[ n ] == 0 )
-				mYInc[ n ] = rand() % 9 - 4;
-
-			mBlockSize[ n ] = rand() % 0x30 + 0x10;
-		};
-
-		delete [] mBackgroundPixels;
-				
-		mBackgroundPixels = new unsigned char[ mWidth * mHeight * mDepth ];
-
-		mFirstTime = false;
-	};
-
-	if ( mStopAction )
-		return;
-
-	if ( time( NULL ) > mLastUpdateTime + 3 )
-	{
-		const int num_squares = rand() % 20 + 4;
-		int sqr1_r = rand() % 0x80 + 0x20;
-		int sqr1_g = rand() % 0x80 + 0x20;
-		int sqr1_b = rand() % 0x80 + 0x20;
-		int sqr2_r = rand() % 0x80 + 0x20;
-		int sqr2_g = rand() % 0x80 + 0x20;
-		int sqr2_b = rand() % 0x80 + 0x20;
-
-		for ( int y1 = 0; y1 < num_squares; ++y1 )
-		{
-			for ( int x1 = 0; x1 < num_squares; ++x1 )
-			{
-				int px_start = mWidth * x1 / num_squares;
-				int px_end = ( mWidth * ( x1 + 1 ) ) / num_squares;
-				int py_start = mHeight * y1 / num_squares;
-				int py_end = ( mHeight * ( y1 + 1 ) ) / num_squares;
-
-				for( int y2 = py_start; y2 < py_end; ++y2 )
-				{
-					for( int x2 = px_start; x2 < px_end; ++x2 )
-					{
-						int rowspan = mWidth * mDepth;
-
-						if ( ( y1 % 2 ) ^ ( x1 % 2 ) )
-						{
-							mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 0 ] = sqr1_r;
-							mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 1 ] = sqr1_g;
-							mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 2 ] = sqr1_b;
-						}
-						else
-						{
-							mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 0 ] = sqr2_r;
-							mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 1 ] = sqr2_g;
-							mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 2 ] = sqr2_b;
-						};
-					};
-				};
-			};
-		};
-
-		time( &mLastUpdateTime );
-	};
-
-	memcpy( mPixels, mBackgroundPixels, mWidth * mHeight * mDepth );
-
-	for( int n = 0; n < ENumObjects; ++n )
-	{
-		if ( rand() % 50 == 0 )
-		{
-				mXInc[ n ] = 0;
-				while ( mXInc[ n ] == 0 )
-					mXInc[ n ] = rand() % 7 - 3;
-
-				mYInc[ n ] = 0;
-				while ( mYInc[ n ] == 0 )
-					mYInc[ n ] = rand() % 9 - 4;
-		};
-
-		if ( mXpos[ n ] + mXInc[ n ] < 0 || mXpos[ n ] + mXInc[ n ] >= mWidth - mBlockSize[ n ] )
-			mXInc[ n ] =- mXInc[ n ];
-
-		if ( mYpos[ n ] + mYInc[ n ] < 0 || mYpos[ n ] + mYInc[ n ] >= mHeight - mBlockSize[ n ] )
-			mYInc[ n ] =- mYInc[ n ];
-
-		mXpos[ n ] += mXInc[ n ];
-		mYpos[ n ] += mYInc[ n ];
-
-		for( int y = 0; y < mBlockSize[ n ]; ++y )
-		{
-			for( int x = 0; x < mBlockSize[ n ]; ++x )
-			{
-				mPixels[ ( mXpos[ n ] + x ) * mDepth + ( mYpos[ n ] + y ) * mDepth * mWidth + 0 ] = mColorR[ n ];
-				mPixels[ ( mXpos[ n ] + x ) * mDepth + ( mYpos[ n ] + y ) * mDepth * mWidth + 1 ] = mColorG[ n ];
-				mPixels[ ( mXpos[ n ] + x ) * mDepth + ( mYpos[ n ] + y ) * mDepth * mWidth + 2 ] = mColorB[ n ];
-			};
-		};
-	};
-
-	setDirty( 0, 0, mWidth, mHeight );
+    if ( mWidth < 1 || mWidth > 2048 || mHeight < 1 || mHeight > 2048 )
+        return;
+
+    if ( mPixels == 0 )
+            return;
+
+    if ( mFirstTime )
+    {
+        for( int n = 0; n < ENumObjects; ++n )
+        {
+            mXpos[ n ] = ( mWidth / 2 ) + rand() % ( mWidth / 16 ) - ( mWidth / 32 );
+            mYpos[ n ] = ( mHeight / 2 ) + rand() % ( mHeight / 16 ) - ( mHeight / 32 );
+
+            mColorR[ n ] = rand() % 0x60 + 0x60;
+            mColorG[ n ] = rand() % 0x60 + 0x60;
+            mColorB[ n ] = rand() % 0x60 + 0x60;
+
+            mXInc[ n ] = 0;
+            while ( mXInc[ n ] == 0 )
+                mXInc[ n ] = rand() % 7 - 3;
+
+            mYInc[ n ] = 0;
+            while ( mYInc[ n ] == 0 )
+                mYInc[ n ] = rand() % 9 - 4;
+
+            mBlockSize[ n ] = rand() % 0x30 + 0x10;
+        };
+
+        delete [] mBackgroundPixels;
+
+        mBackgroundPixels = new unsigned char[ mWidth * mHeight * mDepth ];
+
+        mFirstTime = false;
+    };
+
+    if ( mStopAction )
+        return;
+
+    if ( time( NULL ) > mLastUpdateTime + 3 )
+    {
+        const int num_squares = rand() % 20 + 4;
+        int sqr1_r = rand() % 0x80 + 0x20;
+        int sqr1_g = rand() % 0x80 + 0x20;
+        int sqr1_b = rand() % 0x80 + 0x20;
+        int sqr2_r = rand() % 0x80 + 0x20;
+        int sqr2_g = rand() % 0x80 + 0x20;
+        int sqr2_b = rand() % 0x80 + 0x20;
+
+        for ( int y1 = 0; y1 < num_squares; ++y1 )
+        {
+            for ( int x1 = 0; x1 < num_squares; ++x1 )
+            {
+                int px_start = mWidth * x1 / num_squares;
+                int px_end = ( mWidth * ( x1 + 1 ) ) / num_squares;
+                int py_start = mHeight * y1 / num_squares;
+                int py_end = ( mHeight * ( y1 + 1 ) ) / num_squares;
+
+                for( int y2 = py_start; y2 < py_end; ++y2 )
+                {
+                    for( int x2 = px_start; x2 < px_end; ++x2 )
+                    {
+                        int rowspan = mWidth * mDepth;
+
+                        if ( ( y1 % 2 ) ^ ( x1 % 2 ) )
+                        {
+                            mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 0 ] = sqr1_r;
+                            mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 1 ] = sqr1_g;
+                            mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 2 ] = sqr1_b;
+                        }
+                        else
+                        {
+                            mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 0 ] = sqr2_r;
+                            mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 1 ] = sqr2_g;
+                            mBackgroundPixels[ y2 * rowspan + x2 * mDepth + 2 ] = sqr2_b;
+                        };
+                    };
+                };
+            };
+        };
+
+        time( &mLastUpdateTime );
+    };
+
+    memcpy( mPixels, mBackgroundPixels, mWidth * mHeight * mDepth );
+
+    for( int n = 0; n < ENumObjects; ++n )
+    {
+        if ( rand() % 50 == 0 )
+        {
+                mXInc[ n ] = 0;
+                while ( mXInc[ n ] == 0 )
+                    mXInc[ n ] = rand() % 7 - 3;
+
+                mYInc[ n ] = 0;
+                while ( mYInc[ n ] == 0 )
+                    mYInc[ n ] = rand() % 9 - 4;
+        };
+
+        if ( mXpos[ n ] + mXInc[ n ] < 0 || mXpos[ n ] + mXInc[ n ] >= mWidth - mBlockSize[ n ] )
+            mXInc[ n ] =- mXInc[ n ];
+
+        if ( mYpos[ n ] + mYInc[ n ] < 0 || mYpos[ n ] + mYInc[ n ] >= mHeight - mBlockSize[ n ] )
+            mYInc[ n ] =- mYInc[ n ];
+
+        mXpos[ n ] += mXInc[ n ];
+        mYpos[ n ] += mYInc[ n ];
+
+        for( int y = 0; y < mBlockSize[ n ]; ++y )
+        {
+            for( int x = 0; x < mBlockSize[ n ]; ++x )
+            {
+                mPixels[ ( mXpos[ n ] + x ) * mDepth + ( mYpos[ n ] + y ) * mDepth * mWidth + 0 ] = mColorR[ n ];
+                mPixels[ ( mXpos[ n ] + x ) * mDepth + ( mYpos[ n ] + y ) * mDepth * mWidth + 1 ] = mColorG[ n ];
+                mPixels[ ( mXpos[ n ] + x ) * mDepth + ( mYpos[ n ] + y ) * mDepth * mWidth + 2 ] = mColorB[ n ];
+            };
+        };
+    };
+
+    setDirty( 0, 0, mWidth, mHeight );
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 bool MediaPluginExample::init()
 {
-	LLPluginMessage message( LLPLUGIN_MESSAGE_CLASS_MEDIA, "name_text" );
-	message.setValue( "name", "Example Plugin" );
-	sendMessage( message );
+    LLPluginMessage message( LLPLUGIN_MESSAGE_CLASS_MEDIA, "name_text" );
+    message.setValue( "name", "Example Plugin" );
+    sendMessage( message );
 
-	return true;
+    return true;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 int init_media_plugin( LLPluginInstance::sendMessageFunction host_send_func,
-						void* host_user_data,
-						LLPluginInstance::sendMessageFunction *plugin_send_func,
-						void **plugin_user_data )
+                        void* host_user_data,
+                        LLPluginInstance::sendMessageFunction *plugin_send_func,
+                        void **plugin_user_data )
 {
-	MediaPluginExample* self = new MediaPluginExample( host_send_func, host_user_data );
-	*plugin_send_func = MediaPluginExample::staticReceiveMessage;
-	*plugin_user_data = ( void* )self;
+    MediaPluginExample* self = new MediaPluginExample( host_send_func, host_user_data );
+    *plugin_send_func = MediaPluginExample::staticReceiveMessage;
+    *plugin_user_data = ( void* )self;
 
-	return 0;
+    return 0;
 }
+