//--------------------------------------------------------------------------------
void ofxCvImage::drawROI( float x, float y, float w, float h ) const {
if( bUseTexture ) {
ofRectangle roi = getROI();
if( bTextureDirty ) {
tex.loadData( getRoiPixels() );
bTextureDirty = false;
}
tex.drawSubsection(x,y, w,h,0,0,roi.width,roi.height);
} else {
ofLogError("ofxCvImage") << "drawROI(): textureless drawing mode not implemented";
}
}
//--------------------------------------------------------------------------------
void ofxCvImage::drawROI( float x, float y, float w, float h ) {
if( bUseTexture ) {
ofRectangle roi = getROI();
if( bTextureDirty ) {
if(tex.getWidth() != roi.width || tex.getHeight() != roi.height) {
//ROI was changed
// reallocating texture - this could be faster with ROI support
tex.clear();
tex.allocate( (int)roi.width, (int)roi.height, glchannels );
}
tex.loadData( getRoiPixels(), (int)roi.width, (int)roi.height, glchannels );
bTextureDirty = false;
}
tex.draw(x,y, w,h);
} else {
ofLog(OF_LOG_ERROR, "texture-less drawing not implemented for drawROI");
}
}
