diff options
Diffstat (limited to 'indra/media_plugins/example')
| -rw-r--r-- | indra/media_plugins/example/CMakeLists.txt | 74 | ||||
| -rw-r--r-- | indra/media_plugins/example/media_plugin_example.cpp | 488 |
2 files changed, 562 insertions, 0 deletions
diff --git a/indra/media_plugins/example/CMakeLists.txt b/indra/media_plugins/example/CMakeLists.txt new file mode 100644 index 0000000000..4d82f2747c --- /dev/null +++ b/indra/media_plugins/example/CMakeLists.txt @@ -0,0 +1,74 @@ +# -*- cmake -*- + +project(media_plugin_example) + +include(00-Common) +include(LLCommon) +include(LLImage) +include(LLPlugin) +include(LLMath) +include(LLRender) +include(LLWindow) +include(Linking) +include(PluginAPI) +include(MediaPluginBase) +include(FindOpenGL) + +include(ExamplePlugin) + +include_directories( + ${LLPLUGIN_INCLUDE_DIRS} + ${MEDIA_PLUGIN_BASE_INCLUDE_DIRS} + ${LLCOMMON_INCLUDE_DIRS} + ${LLMATH_INCLUDE_DIRS} + ${LLIMAGE_INCLUDE_DIRS} + ${LLRENDER_INCLUDE_DIRS} + ${LLWINDOW_INCLUDE_DIRS} +) + + +### media_plugin_example + +set(media_plugin_example_SOURCE_FILES + media_plugin_example.cpp + ) + +add_library(media_plugin_example + SHARED + ${media_plugin_example_SOURCE_FILES} +) + +target_link_libraries(media_plugin_example + ${LLPLUGIN_LIBRARIES} + ${MEDIA_PLUGIN_BASE_LIBRARIES} + ${LLCOMMON_LIBRARIES} + ${EXAMPLE_PLUGIN_LIBRARIES} + ${PLUGIN_API_WINDOWS_LIBRARIES} +) + +add_dependencies(media_plugin_example + ${LLPLUGIN_LIBRARIES} + ${MEDIA_PLUGIN_BASE_LIBRARIES} + ${LLCOMMON_LIBRARIES} +) + +if (WINDOWS) + set_target_properties( + media_plugin_example + PROPERTIES + LINK_FLAGS "/MANIFEST:NO" + ) +endif (WINDOWS) + +if (DARWIN) + # Don't prepend 'lib' to the executable name, and don't embed a full path in the library's install name + set_target_properties( + media_plugin_example + PROPERTIES + PREFIX "" + BUILD_WITH_INSTALL_RPATH 1 + INSTALL_NAME_DIR "@executable_path" + LINK_FLAGS "-exported_symbols_list ${CMAKE_CURRENT_SOURCE_DIR}/../base/media_plugin_base.exp" + ) + +endif (DARWIN)
\ No newline at end of file diff --git a/indra/media_plugins/example/media_plugin_example.cpp b/indra/media_plugins/example/media_plugin_example.cpp new file mode 100644 index 0000000000..e873a0d034 --- /dev/null +++ b/indra/media_plugins/example/media_plugin_example.cpp @@ -0,0 +1,488 @@ +/** + * @file media_plugin_example.cpp + * @brief Example plugin for LLMedia API plugin system + * + * $LicenseInfo:firstyear=2008&license=viewergpl$ + * + * Copyright (c) 2009, 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 "llgl.h" +#include "llplugininstance.h" +#include "llpluginmessage.h" +#include "llpluginmessageclasses.h" +#include "media_plugin_base.h" + +#include <time.h> + +//////////////////////////////////////////////////////////////////////////////// +// +class MediaPluginExample : + 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( int 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 ) +{ + mFirstTime = true; + mWidth = 0; + mHeight = 0; + mDepth = 4; + mPixels = 0; + mMouseButtonDown = false; + mStopAction = false; + mLastUpdateTime = 0; +} + +//////////////////////////////////////////////////////////////////////////////// +// +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 ); + + // Plugin gets to decide the texture parameters to use. + message.setMessage( 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 == "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 == "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 ); + }; + }; + } + 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 ); + } + else + if ( message_name == "browse_stop" ) + { + for( int n = 0; n < ENumObjects; ++n ) + mXInc[ n ] = mYInc[ n ] = 0; + + mStopAction = true; + update( 0 ); + } + 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; + }; + }; +} + +//////////////////////////////////////////////////////////////////////////////// +// +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 ); + }; +} + +//////////////////////////////////////////////////////////////////////////////// +// +void MediaPluginExample::update( int 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 ); +}; + +//////////////////////////////////////////////////////////////////////////////// +// +bool MediaPluginExample::init() +{ + LLPluginMessage message( LLPLUGIN_MESSAGE_CLASS_MEDIA, "name_text" ); + message.setValue( "name", "Example Plugin" ); + sendMessage( message ); + + return true; +}; + +//////////////////////////////////////////////////////////////////////////////// +// +int init_media_plugin( LLPluginInstance::sendMessageFunction host_send_func, + 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; + + return 0; +} |