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-rw-r--r--chromium/third_party/skia/platform_tools/nacl/src/nacl_hello.cpp150
1 files changed, 150 insertions, 0 deletions
diff --git a/chromium/third_party/skia/platform_tools/nacl/src/nacl_hello.cpp b/chromium/third_party/skia/platform_tools/nacl/src/nacl_hello.cpp
new file mode 100644
index 00000000000..a091ab4ead2
--- /dev/null
+++ b/chromium/third_party/skia/platform_tools/nacl/src/nacl_hello.cpp
@@ -0,0 +1,150 @@
+
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "ppapi/cpp/completion_callback.h"
+#include "ppapi/cpp/graphics_2d.h"
+#include "ppapi/cpp/image_data.h"
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/point.h"
+#include "ppapi/cpp/rect.h"
+#include "ppapi/cpp/var.h"
+
+#include "SkBitmap.h"
+#include "SkCanvas.h"
+#include "SkColor.h"
+#include "SkGraphics.h"
+#include "SkStream.h"
+#include "SkString.h"
+
+class SkiaInstance;
+
+// Used by SkDebugf
+SkiaInstance* gPluginInstance;
+
+void FlushCallback(void* data, int32_t result);
+
+static void doDraw(SkCanvas* canvas, const SkPaint& paint, const char text[]) {
+ canvas->drawColor(SK_ColorWHITE);
+ SkPaint red;
+ red.setColor(SK_ColorRED);
+ canvas->drawCircle(150.0, 150.0, 100.0, red);
+ SkRect bounds;
+ canvas->getClipBounds(&bounds);
+ canvas->drawText(text, strlen(text),
+ bounds.centerX(), bounds.centerY(),
+ paint);
+}
+
+// Skia's subclass of pp::Instance, our interface with the browser.
+class SkiaInstance : public pp::Instance {
+public:
+ explicit SkiaInstance(PP_Instance instance)
+ : pp::Instance(instance)
+ , fCanvas(NULL)
+ , fFlushLoopRunning(false)
+ , fFlushPending(false)
+ {
+ gPluginInstance = this;
+ SkGraphics::Init();
+ }
+
+ virtual ~SkiaInstance() {
+ SkGraphics::Term();
+ gPluginInstance = NULL;
+ }
+
+ virtual void HandleMessage(const pp::Var& var_message) {
+ // Receive a message from javascript.
+ }
+
+ void Paint() {
+ if (!fImage.is_null()) {
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ paint.setTextSize(SkIntToScalar(30));
+ paint.setTextAlign(SkPaint::kCenter_Align);
+ doDraw(fCanvas, paint, "Hello");
+
+ fDeviceContext.PaintImageData(fImage, pp::Point(0, 0));
+ if (!fFlushPending) {
+ fFlushPending = true;
+ fDeviceContext.Flush(pp::CompletionCallback(&FlushCallback, this));
+ } else {
+ SkDebugf("A flush is pending... Skipping flush.\n");
+ }
+ } else {
+ SkDebugf("No pixels to write to!\n");
+ }
+ }
+
+ virtual void DidChangeView(const pp::Rect& position, const pp::Rect& clip) {
+ if (position.size().width() == fWidth &&
+ position.size().height() == fHeight) {
+ return; // We don't care about the position, only the size.
+ }
+ fWidth = position.size().width();
+ fHeight = position.size().height();
+ fDeviceContext = pp::Graphics2D(this, pp::Size(fWidth, fHeight), false);
+ if (!BindGraphics(fDeviceContext)) {
+ SkDebugf("Couldn't bind the device context\n");
+ return;
+ }
+ fImage = pp::ImageData(this,
+ PP_IMAGEDATAFORMAT_BGRA_PREMUL,
+ pp::Size(fWidth, fHeight), false);
+ fBitmap.setConfig(SkBitmap::kARGB_8888_Config, fWidth, fHeight);
+ fBitmap.setPixels(fImage.data());
+ if (fCanvas) {
+ delete fCanvas;
+ }
+ fCanvas = new SkCanvas(fBitmap);
+ fCanvas->clear(SK_ColorWHITE);
+ if (!fFlushLoopRunning) {
+ Paint();
+ }
+ }
+
+ void OnFlush() {
+ fFlushLoopRunning = true;
+ fFlushPending = false;
+ Paint();
+ }
+
+private:
+ pp::Graphics2D fDeviceContext;
+ pp::ImageData fImage;
+ int fWidth;
+ int fHeight;
+
+ SkBitmap fBitmap;
+ SkCanvas* fCanvas;
+
+ bool fFlushLoopRunning;
+ bool fFlushPending;
+};
+
+void FlushCallback(void* data, int32_t result) {
+ static_cast<SkiaInstance*>(data)->OnFlush();
+}
+
+class SkiaModule : public pp::Module {
+public:
+ SkiaModule() : pp::Module() {}
+ virtual ~SkiaModule() {}
+
+ virtual pp::Instance* CreateInstance(PP_Instance instance) {
+ return new SkiaInstance(instance);
+ }
+};
+
+namespace pp {
+Module* CreateModule() {
+ return new SkiaModule();
+}
+} // namespace pp