From 834835c99dd9fd182ca3116b5bc3e7ae8b3815ad Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Thu, 31 Oct 2013 12:57:59 +0000
Subject: thumbnail stills and svgs

---
 rotord/src/graph.h | 38 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

(limited to 'rotord/src/graph.h')

diff --git a/rotord/src/graph.h b/rotord/src/graph.h
index 6f2ee79..2f8843d 100644
--- a/rotord/src/graph.h
+++ b/rotord/src/graph.h
@@ -97,6 +97,43 @@ namespace Rotor {
 	class Thumbnailer{
 		public:
 			bool make(const string &inputfilename,int w,int h,const string &outputfilename) {
+				Poco::StringTokenizer t1(inputfilename,".");
+				if (t1.count()>1) {
+					if (t1[t1.count()-1]=="svg"){
+						cerr<<"found an svg"<<endl;
+						RsvgHandle * rsvg=rsvg_handle_new_from_file(inputfilename.c_str(),nullptr);
+						if (rsvg) {
+							RsvgDimensionData dims;
+							rsvg_handle_get_dimensions(rsvg,&dims);
+							cerr<<"Rotor: SVG loaded "<<inputfilename<<" , "<<dims.width<<"x"<<dims.height<<endl;
+							cv::Mat cp=cv::Mat(h,w,CV_8UC4);
+							cv::Mat co=cv::Mat(h,w,CV_8UC3);
+						    cairo_surface_t * cs = cairo_image_surface_create_for_data (cp.data,
+			                                                         CAIRO_FORMAT_RGB24,
+			                                                         w,
+			                                                         h,
+			                                                         w*4);
+						    cairo_t * cr = cairo_create (cs);
+						    cairo_translate(cr, w/2, h/2);
+						    cairo_scale(cr, ((float)w)/640.0f,((float)w)/640.0f);
+						    cairo_translate(cr, -w/2, -h/2);
+						    cairo_translate(cr, w/2-(dims.width/2), h/2-(dims.height/2));
+							rsvg_handle_render_cairo(rsvg,cr);
+							cv::cvtColor(cp,co,CV_RGBA2BGR,3);
+							cv::imwrite(outputfilename.c_str(),co);
+							cairo_destroy(cr);
+							cairo_surface_destroy(cs);
+							rsvg_handle_close(rsvg,nullptr);
+							g_object_unref(rsvg);
+							return true;
+						}
+						else {
+							cerr<<"Rotor: SVG failed to load "<<inputfilename<<endl;
+							return false;
+						}
+					}
+				}
+				//if not svg feed to FFMS2
 				if (player.open(inputfilename)){
 					if (player.fetch_frame(w,h,player.get_number_frames()/4)) {
 						Image i;
@@ -105,7 +142,6 @@ namespace Rotor {
 						cvtColor(i.rgb,cp,CV_RGB2BGR);
 						cv::imwrite(outputfilename.c_str(),cp);
 						return true;
-
 					}
 				}
 				return false;
-- 
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