add ganesh checkbox to skfiddle interface

experimental/webtry/main.cpp

Index: experimental/webtry/main.cpp
diff --git a/experimental/webtry/main.cpp b/experimental/webtry/main.cpp
index 98c2f5e4e68aa6a6421d32bb6533da005a1414e3..bd6ffb2aba9e2a54eabd89417553491070a827b7 100644
--- a/experimental/webtry/main.cpp
+++ b/experimental/webtry/main.cpp
@@ -13,6 +13,8 @@
 #include "SkStream.h"
 #include "SkSurface.h"
 
+#include "GrContextFactory.h"

[tfarina, 2014/10/13 21:28:12]

might keep this sorted while at this?

[humper, 2014/10/13 21:50:06]

Done.

+
 #include "seccomp_bpf.h"
 
 __SK_FORCE_IMAGE_DECODER_LINKING;
@@ -21,6 +23,7 @@ DEFINE_string(out, "", "Filename of the PNG to write to.");
 DEFINE_string(source, "", "Filename of the source image.");
 DEFINE_int32(width, 256, "Width of output image.");
 DEFINE_int32(height, 256, "Height of output image.");
+DEFINE_bool(gpu, false, "Use GPU (Mesa) rendering.");
 
 // Defined in template.cpp.
 extern SkBitmap source;
@@ -119,8 +122,22 @@ int main(int argc, char** argv) {
     SkFILEWStream stream(FLAGS_out[0]);
 
     SkImageInfo info = SkImageInfo::MakeN32(FLAGS_width, FLAGS_height, kPremul_SkAlphaType);
-    SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info));
-    SkCanvas* canvas = surface->getCanvas();
+
+    SkCanvas *canvas;

[tfarina, 2014/10/13 21:28:12]

'SkCanvas* canvas;'?

[humper, 2014/10/13 21:50:06]

Done.

+    SkAutoTUnref<SkSurface> surface;
+
+    GrContextFactory* grFactory = NULL;
+
+    if (FLAGS_gpu) {
+        GrContext::Options grContextOpts;
+        grFactory = new GrContextFactory(grContextOpts);
+        GrContext *gr = grFactory->get(GrContextFactory::kMESA_GLContextType);

[tfarina, 2014/10/13 21:28:12]

keep the "*" with the type rather than the variable?

[humper, 2014/10/13 21:50:06]

Done.

+        surface.reset(SkSurface::NewRenderTarget(gr,info));
+    } else {
+        surface.reset(SkSurface::NewRaster(info));
+    }    
+
+    canvas = surface->getCanvas();
 
     setLimits();