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| #include "basicEffect.h" | ||
| #include "shaderEffect.h" | ||
| #include "videoEffect.h" | ||
| #include "gifEffect.h" | ||
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| #endif | ||
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| // | ||
| // gifEffect.cpp | ||
| // karmaMapper | ||
| // | ||
| // Created by Daan de Lange on 06/06/2014. | ||
| // | ||
| // - - - - | ||
| // | ||
| // Parent class for all effects. | ||
| // Implements some standard methods for overall usage. | ||
| // | ||
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| #include "gifEffect.h" | ||
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| gifEffect::gifEffect(){ | ||
| basicEffect::basicEffect(); | ||
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| directory = ""; | ||
| gifFiles.resize(0); | ||
| shader.load("./gifEffect/videoShader"); | ||
| timePerFrame = 0.05; | ||
| loopCount = 0; | ||
| loopStartTime = ofGetElapsedTimef(); | ||
| cachedGif = -1; | ||
| cachedFiles.resize(2); | ||
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| numLoopsPerGif = 4; | ||
| for(int i=0;i<cachedFiles.size();i++) cachedFiles[i].setBackgroundColor( ofColor(0,0) ); | ||
| } | ||
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| gifEffect::~gifEffect(){ | ||
| basicEffect::~basicEffect(); | ||
| } | ||
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| // spawns the effect @ the scene so it starts rendering (setup) | ||
| // overrule this function with your own. | ||
| void gifEffect::spawn(){ | ||
| basicEffect::spawn(); | ||
| } | ||
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| // update --> animation | ||
| void gifEffect::render(){ | ||
| // todo: what if gif contains only 1 frame ? | ||
| if( pShape==NULL || cachedGif<0 || cachedGif >= cachedFiles.size() || cachedFiles[cachedGif].getNumFrames() < 1 ) return; | ||
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| //int currentFrame; | ||
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| // looped ? | ||
| if(loopStartTime + timePerFrame*numLoopsPerGif*cachedFiles[cachedGif].getNumFrames() < ofGetElapsedTimef() ){ | ||
| //cachedGif++; | ||
| //cachedGif = cachedGif%cachedFiles.size(); | ||
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| if( loadGif( (currentGif+1)%gifFiles.size() ) ){ | ||
| loopStartTime = ofGetElapsedTimef(); | ||
| } | ||
| // todo: skip gif if stuck/fail | ||
| else { | ||
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| } | ||
| } | ||
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| // calc current frame Nb | ||
| //timePerFrame = cachedFiles[cachedGif].getDuration() / cachedFiles[cachedGif].getNumFrames(); | ||
| int currentFrame = (int) floor( (ofGetElapsedTimef() - loopStartTime) /(timePerFrame) ) % (int) cachedFiles[cachedGif].getNumFrames(); | ||
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| // load shader | ||
| shader.begin(); | ||
| shader.setUniformTexture("tex0", *cachedFiles[cachedGif].getFrameAt(currentFrame)->getRawTexture() , 0); | ||
| shader.setUniform2f("resolution", pShape->boundingBox.width, pShape->boundingBox.height); | ||
| shader.setUniform2f("textureResolution", cachedFiles[cachedGif].getWidth(), cachedFiles[cachedGif].getHeight() ); | ||
| shader.setUniform2f("shapeCenterOffset", pShape->getCenterOffsetFromBoundingBox().x, pShape->getCenterOffsetFromBoundingBox().y); | ||
| shader.setUniform1f("textureScale", 1); | ||
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| // draw shape so GPU gets their vertex data | ||
| pShape->render(); | ||
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| // flush the pipeline! :D | ||
| shader.end(); | ||
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| } | ||
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| void gifEffect::update(){ | ||
| basicEffect::update(); | ||
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| //stream.update(); | ||
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| // tmp | ||
| if( ofGetKeyPressed('r') ){ | ||
| shader.load("./gifEffect/videoShader"); | ||
| cout << "Shader reloaded"<<endl; | ||
| } | ||
| } | ||
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| // resets all values | ||
| // overrule this function with your own. | ||
| void gifEffect::reset(){ | ||
| basicEffect::reset(); | ||
| } | ||
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| // called just before removal | ||
| void gifEffect::destroy(){ | ||
| basicEffect::destroy(); | ||
| } | ||
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| bool gifEffect::setDirectory(string _dir){ | ||
| // already set ? | ||
| if(_dir==directory) return true; | ||
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| ofDirectory dir(_dir); | ||
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| if( !dir.exists() || !dir.canRead() ){ | ||
| ofLogNotice("gifEffect") << "Unable to load " << _dir << endl; | ||
| return false; | ||
| } | ||
| else{ | ||
| // default video path | ||
| if(directory=="") directory="./gifEffect/gifs/"; | ||
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| dir.allowExt("gif"); | ||
| dir.sort(); | ||
| dir.listDir(_dir); | ||
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| if(dir.size()==0){ | ||
| if(!dir.exists()){ | ||
| ofLogNotice("gifEffect") << "Folder «" << _dir << "» doesn't exist." << endl; | ||
| } | ||
| else if(!dir.canRead()){ | ||
| ofLogNotice("gifEffect") << "Folder «" << _dir << "» is not readable." << endl; | ||
| } | ||
| else if(!dir.isDirectory()){ | ||
| ofLogNotice("gifEffect") << "Folder «" << _dir << "» is not a directory." << endl; | ||
| } | ||
| else ofLogNotice("gifEffect") << "Folder «" << _dir << "» gif files." << endl; | ||
| } | ||
| else ofLogVerbose("gifEffect") << "Scanning «" << _dir << "» ... Found " << ofToString(dir.size()) << " file(s) (.gif) [readable=" << dir.canRead() << "] [isDirectory=" << ofToString(dir.isDirectory()) << "]" << endl; | ||
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| // get videos | ||
| gifFiles.resize(0); | ||
| for(int i=0; i<dir.size(); i++){ | ||
| // test videos before adding... HEAVY (remove this check for performence?) | ||
| //if(decoder.decode( dir.getPath(i) )){ | ||
| gifFiles.push_back( dir.getName(i) ); | ||
| //decoder.reset(); | ||
| //} | ||
| //else { | ||
| // ofLogNotice("gifEffect") << "Could not add " << dir.getPath(i); | ||
| //} | ||
| } | ||
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| directory = _dir; | ||
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| //loadRandomGif(); | ||
| loadGif(0); | ||
| } | ||
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| return true; | ||
| } | ||
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| bool gifEffect::loadRandomGif(){ | ||
| return loadGif( (int)ofRandom(-.49, gifFiles.size()-.51) ); | ||
| } | ||
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| bool gifEffect::loadGif(int gifID){ | ||
| if(gifID < 0 || gifID >= gifFiles.size() ) return false; | ||
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| string tmp = ofToString(directory+"/"+gifFiles[gifID]); | ||
| if( decoder.decode( tmp ) ){ | ||
| cachedGif = (cachedGif+1)%cachedFiles.size(); | ||
| cachedFiles[ cachedGif ] = decoder.getFile(); | ||
| pShape->hasError = false; | ||
| ofLogVerbose("gifEffect") << "Successfully loaded movie: " << gifFiles[gifID] << endl; | ||
| currentGif = gifID; | ||
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| return true; | ||
| } | ||
| else{ | ||
| ofLogNotice("gifEffect") << "Could not load "+ directory+"/"+gifFiles[gifID] << endl;; | ||
| pShape->hasError = true; | ||
| cachedGif = -1; | ||
| return false; | ||
| } | ||
| } | ||
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| // not: string must exist in gifFiles | ||
| bool gifEffect::loadGif(string videoName){ | ||
| int found = -1; | ||
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| for(int i=0; i<gifFiles.size(); i++){ | ||
| if(gifFiles[i]==videoName){ | ||
| found=i; | ||
| break; | ||
| } | ||
| } | ||
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| return (found<0)?false:loadGif(found); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| // | ||
| // gifEffect.h | ||
| // karmaMapper | ||
| // | ||
| // Created by Daan de Lange on 06/06/2014. | ||
| // | ||
| // | ||
|
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| #pragma once | ||
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| #include "ofMain.h" | ||
| #include "basicEffect.h" | ||
| #include "ofxGifDecoder.h" | ||
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| class gifEffect : public basicEffect { | ||
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| public: | ||
| gifEffect(); | ||
| ~gifEffect(); | ||
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| virtual void spawn(); | ||
| virtual void render(); | ||
| virtual void update(); | ||
| virtual void reset(); | ||
| virtual void destroy(); | ||
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| bool setDirectory(string _dir); | ||
| bool loadRandomGif(); | ||
| bool loadGif(int videoID); | ||
| bool loadGif(string videoName); | ||
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| protected: | ||
| vector<string> gifFiles; | ||
| string directory; | ||
| ofShader shader; | ||
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| unsigned int numLoopsPerGif; | ||
| unsigned int loopCount; | ||
| unsigned int currentGif; | ||
| float loopStartTime; | ||
| float timePerFrame; | ||
| ofxGifDecoder decoder; | ||
| vector<ofxGifFile> cachedFiles; | ||
| int cachedGif; // cachedFiles is for precaching... this tells which one is being used | ||
| }; |
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