CL to add setFullscreen and setVsync to SkWindow

BUG=skia:

Review URL: https://codereview.chromium.org/1151333004

2 files changed, 206 insertions, 0 deletions

diff --git a/tools/VisualBench.cpp b/tools/VisualBench.cpp
new file mode 100644
index 0000000000..3f8d8036aa
--- /dev/null
+++ b/tools/VisualBench.cpp
@@ -0,0 +1,147 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ */
+
+#include "VisualBench.h"
+
+#include "SkApplication.h"
+#include "SkCanvas.h"
+#include "SkCommandLineFlags.h"
+#include "SkCommonFlags.h"
+#include "SkForceLinking.h"
+#include "SkGraphics.h"
+#include "SkGr.h"
+#include "SkImageDecoder.h"
+#include "SkOSFile.h"
+#include "SkStream.h"
+#include "Timer.h"
+#include "gl/GrGLInterface.h"
+
+__SK_FORCE_IMAGE_DECODER_LINKING;
+
+VisualBench::VisualBench(void* hwnd, int argc, char** argv)
+    : INHERITED(hwnd)
+    , fCurrentLoops(1)
+    , fCurrentPicture(0)
+    , fCurrentFrame(0) {
+    SkCommandLineFlags::Parse(argc, argv);
+
+    SkTArray<SkString> skps;
+    for (int i = 0; i < FLAGS_skps.count(); i++) {
+        if (SkStrEndsWith(FLAGS_skps[i], ".skp")) {
+            skps.push_back() = FLAGS_skps[i];
+        } else {
+            SkOSFile::Iter it(FLAGS_skps[i], ".skp");
+            SkString path;
+            while (it.next(&path)) {
+                skps.push_back() = SkOSPath::Join(FLAGS_skps[0], path.c_str());
+            }
+        }
+    }
+
+    this->setTitle();
+    this->setupBackend();
+
+    // Load picture for playback
+    for (int i = 0; i < skps.count(); i++) {
+        SkFILEStream stream(skps[i].c_str());
+        if (stream.isValid()) {
+            fPictures.push_back(SkPicture::CreateFromStream(&stream));
+        } else {
+            SkDebugf("couldn't load picture at \"path\"\n", skps[i].c_str());
+        }
+    }
+}
+
+VisualBench::~VisualBench() {
+    for (int i = 0; i < fPictures.count(); i++) {
+        fPictures[i]->~SkPicture();
+    }
+    INHERITED::detach();
+}
+
+void VisualBench::setTitle() {
+    SkString title("VisualBench");
+    INHERITED::setTitle(title.c_str());
+}
+
+SkSurface* VisualBench::createSurface() {
+    SkSurfaceProps props(INHERITED::getSurfaceProps());
+    return SkSurface::NewRenderTargetDirect(fRenderTarget, &props);
+}
+
+bool VisualBench::setupBackend() {
+    this->setColorType(kRGBA_8888_SkColorType);
+    this->setVisibleP(true);
+    this->setClipToBounds(false);
+
+    if (!this->attach(kNativeGL_BackEndType, 0 /*msaa*/, &fAttachmentInfo)) {
+        SkDebugf("Not possible to create backend.\n");
+        INHERITED::detach();
+        return false;
+    }
+
+    this->setFullscreen(true);
+    this->setVsync(false);
+
+    fInterface.reset(GrGLCreateNativeInterface());
+    SkASSERT(fInterface);
+
+    // setup contexts
+    fContext.reset(GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)fInterface.get()));
+    SkASSERT(fContext);
+
+    // setup rendertargets
+    this->setupRenderTarget();
+    return true;
+}
+
+void VisualBench::setupRenderTarget() {
+    fRenderTarget.reset(this->renderTarget(fAttachmentInfo, fInterface, fContext));
+}
+
+void VisualBench::draw(SkCanvas* canvas) {
+    fCurrentFrame++;
+    WallTimer timer;
+    timer.start();
+    for (int i = 0; i < fCurrentLoops; i++) {
+        canvas->drawPicture(fPictures[fCurrentPicture]);
+    }
+    // in case we have queued drawing calls
+    fContext->flush();
+    INHERITED::present();
+    timer.end();
+
+    SkDebugf("%s\n", HumanizeMs(timer.fWall).c_str());
+
+    // Invalidate the window to force a redraw. Poor man's animation mechanism.
+    this->inval(NULL);
+}
+
+void VisualBench::onSizeChange() {
+    this->setupRenderTarget();
+}
+
+bool VisualBench::onHandleChar(SkUnichar unichar) {
+    return true;
+}
+
+// Externally declared entry points
+void application_init() {
+    SkGraphics::Init();
+    SkEvent::Init();
+}
+
+void application_term() {
+    SkEvent::Term();
+    SkGraphics::Term();
+}
+
+SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv) {
+    return new VisualBench(hwnd, argc, argv);
+}
+
diff --git a/tools/VisualBench.h b/tools/VisualBench.h
new file mode 100644
index 0000000000..d9e0b50866
--- /dev/null
+++ b/tools/VisualBench.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ */
+
+#ifndef VisualBench_DEFINED
+#define VisualBench_DEFINED
+
+#include "SkWindow.h"
+
+#include "SkPicture.h"
+#include "SkSurface.h"
+#include "gl/SkGLContext.h"
+
+class GrContext;
+struct GrGLInterface;
+class GrRenderTarget;
+class SkCanvas;
+
+/*
+ * A Visual benchmarking tool for gpu benchmarking
+ */
+class VisualBench : public SkOSWindow {
+public:
+    VisualBench(void* hwnd, int argc, char** argv);
+    ~VisualBench() override;
+
+protected:
+    SkSurface* createSurface() override;
+
+    void draw(SkCanvas* canvas) override;
+
+    void onSizeChange() override;
+
+private:
+    void setTitle();
+    bool setupBackend();
+    void setupRenderTarget();
+    bool onHandleChar(SkUnichar unichar) override;
+
+    int fCurrentLoops;
+    int fCurrentPicture;
+    int fCurrentFrame;
+    SkTArray<SkPicture*> fPictures;
+
+    // support framework
+    SkAutoTUnref<SkSurface> fSurface;
+    SkAutoTUnref<GrContext> fContext;
+    SkAutoTUnref<GrRenderTarget> fRenderTarget;
+    AttachmentInfo fAttachmentInfo;
+    SkAutoTUnref<const GrGLInterface> fInterface;
+
+    typedef SkOSWindow INHERITED;
+};
+
+#endif