Get HelloWorld example running again

Change-Id: I5956f7c52d265d9f52dd061f1555c54ad092fe76
Reviewed-on: https://skia-review.googlesource.com/57101
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>

3 files changed, 26 insertions, 15 deletions

diff --git a/BUILD.gn b/BUILD.gn
index ece39b05d9..29fc0204b3 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1421,6 +1421,26 @@ if (skia_enable_tools) {
     }
   }
 
+  if (skia_enable_gpu && !skia_use_angle && (is_linux || is_win || is_mac)) {
+    test_app("HelloWorld") {
+      sources = [
+        "example/HelloWorld.cpp",
+      ]
+      if (is_mac) {
+        sources += [ "src/views/mac/skia_mac.mm" ]
+      } else if (is_win) {
+        sources += [ "src/views/win/skia_win.cpp" ]
+      } else if (is_linux) {
+        sources += [ "src/views/unix/skia_unix.cpp" ]
+      }
+      deps = [
+        ":gpu_tool_utils",
+        ":skia",
+        ":views",
+      ]
+    }
+  }
+
   if (skia_enable_gpu) {
     test_app("skpbench") {
       sources = [
diff --git a/example/HelloWorld.cpp b/example/HelloWorld.cpp
index 2375e0016f..83bc4ecf44 100644
--- a/example/HelloWorld.cpp
+++ b/example/HelloWorld.cpp
@@ -39,14 +39,6 @@ HelloWorldWindow::~HelloWorldWindow() {
 }
 
 void HelloWorldWindow::tearDownBackend() {
-    SkSafeUnref(fContext);
-    fContext = NULL;
-
-    SkSafeUnref(fInterface);
-    fInterface = NULL;
-
-    fGpuSurface = nullptr;
-
     INHERITED::release();
 }
 
@@ -67,10 +59,10 @@ bool HelloWorldWindow::setUpBackend() {
         return false;
     }
 
-    fInterface = GrGLCreateNativeInterface();
+    fInterface.reset(GrGLCreateNativeInterface());
     SkASSERT(NULL != fInterface);
 
-    fContext = GrContext::MakeGL(fInterface).release();
+    fContext = GrContext::MakeGL(fInterface.get());
     SkASSERT(NULL != fContext);
 
     this->setUpGpuBackedSurface();
@@ -78,7 +70,7 @@ bool HelloWorldWindow::setUpBackend() {
 }
 
 void HelloWorldWindow::setUpGpuBackedSurface() {
-    fGpuSurface = this->makeGpuBackedSurface(fAttachmentInfo, fInterface, fContext);
+    fGpuSurface = this->makeGpuBackedSurface(fAttachmentInfo, fInterface.get(), fContext.get());
 }
 
 void HelloWorldWindow::drawContents(SkCanvas* canvas) {
@@ -114,8 +106,7 @@ void HelloWorldWindow::drawContents(SkCanvas* canvas) {
     // Draw a message with a nice black paint.
     paint.setFlags(
             SkPaint::kAntiAlias_Flag |
-            SkPaint::kSubpixelText_Flag |  // ... avoid waggly text when rotating.
-            SkPaint::kUnderlineText_Flag);
+            SkPaint::kSubpixelText_Flag);  // ... avoid waggly text when rotating.
     paint.setColor(SK_ColorBLACK);
     paint.setTextSize(20);
 
diff --git a/example/HelloWorld.h b/example/HelloWorld.h
index d3fc7cfb16..05d9b81e82 100644
--- a/example/HelloWorld.h
+++ b/example/HelloWorld.h
@@ -62,10 +62,10 @@ private:
     // support framework
     DeviceType fType;
     sk_sp<SkSurface> fRasterSurface;
-    GrContext* fContext;
+    sk_sp<GrContext> fContext;
     sk_sp<SkSurface> fGpuSurface;
     AttachmentInfo fAttachmentInfo;
-    const GrGLInterface* fInterface;
+    sk_sp<const GrGLInterface> fInterface;
 
     typedef SkOSWindow INHERITED;
 };