blob: d3fc7cfb16a2279d420cb3416d01083346881749 [file] [log] [blame]
* 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 HelloWorld_DEFINED
#define HelloWorld_DEFINED
#include "SkSurface.h"
#include "SkWindow.h"
class GrContext;
struct GrGLInterface;
class GrRenderTarget;
class SkCanvas;
class HelloWorldWindow : public SkOSWindow {
enum DeviceType {
HelloWorldWindow(void* hwnd);
virtual ~HelloWorldWindow() override;
// Changes the device type of the object.
bool setUpBackend();
DeviceType getDeviceType() const { return fType; }
sk_sp<SkSurface> makeSurface() override {
SkSurfaceProps props(INHERITED::getSurfaceProps());
if (kGPU_DeviceType == fType) {
return fGpuSurface;
const SkImageInfo info = SkImageInfo::MakeN32Premul(SkScalarRoundToInt(this->width()),
fRasterSurface = SkSurface::MakeRaster(info, &props);
return fRasterSurface;
void draw(SkCanvas* canvas) override;
void drawContents(SkCanvas* canvas);
void onSizeChange() override;
bool findNextMatch(); // Set example to the first one that matches FLAGS_match.
void setTitle();
void setUpGpuBackedSurface();
bool onHandleChar(SkUnichar unichar) override;
void tearDownBackend();
// draw contents
SkScalar fRotationAngle;
// support framework
DeviceType fType;
sk_sp<SkSurface> fRasterSurface;
GrContext* fContext;
sk_sp<SkSurface> fGpuSurface;
AttachmentInfo fAttachmentInfo;
const GrGLInterface* fInterface;
typedef SkOSWindow INHERITED;