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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkPath.h"
#include "SkPictureRecorder.h"
#include "SkSurface.h"
static void draw(SkCanvas* canvas, int width, int height, SkColor colors[2]) {
const SkPoint center = { SkIntToScalar(width)/2, SkIntToScalar(height)/2 };
const SkScalar radius = 40;
SkShader* shader = SkGradientShader::CreateRadial(center, radius, colors, nullptr, 2,
SkShader::kMirror_TileMode);
SkPaint paint;
paint.setShader(shader)->unref();
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
canvas->drawPaint(paint);
}
static SkImage* make_raster_image(int width, int height, SkColor colors[2]) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(width, height));
draw(surface->getCanvas(), width, height, colors);
return surface->newImageSnapshot();
}
static SkImage* make_picture_image(int width, int height, SkColor colors[2]) {
SkPictureRecorder recorder;
draw(recorder.beginRecording(SkRect::MakeIWH(width, height)), width, height, colors);
SkAutoTUnref<SkPicture> picture(recorder.endRecording());
return SkImage::NewFromPicture(picture, SkISize::Make(width, height),
nullptr, nullptr);
}
typedef SkImage* (*ImageMakerProc)(int width, int height, SkColor colors[2]);
static void show_image(SkCanvas* canvas, int width, int height, SkColor colors[2],
ImageMakerProc proc) {
SkAutoTUnref<SkImage> image(proc(width, height, colors));
SkPaint paint;
SkRect r;
SkIRect ir;
paint.setStyle(SkPaint::kStroke_Style);
ir.set(0, 0, 128, 128);
r.set(ir);
canvas->save();
canvas->clipRect(r);
canvas->drawImage(image, 0, 0, nullptr);
canvas->restore();
canvas->drawRect(r, paint);
r.offset(SkIntToScalar(150), 0);
canvas->drawImageRect(image, ir, r, nullptr);
canvas->drawRect(r, paint);
r.offset(SkIntToScalar(150), 0);
canvas->drawImageRect(image, r, nullptr);
canvas->drawRect(r, paint);
}
class VeryLargeBitmapGM : public skiagm::GM {
ImageMakerProc fProc;
SkString fName;
public:
VeryLargeBitmapGM(ImageMakerProc proc, const char suffix[]) : fProc(proc) {
fName.printf("verylarge%s", suffix);
}
protected:
SkString onShortName() override {
return fName;
}
SkISize onISize() override {
return SkISize::Make(500, 600);
}
void onDraw(SkCanvas* canvas) override {
int veryBig = 65*1024; // 64K < size
int big = 33*1024; // 32K < size < 64K
// smaller than many max texture sizes, but large enough to gpu-tile for memory reasons.
int medium = 5*1024;
int small = 150;
SkColor colors[2];
canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
colors[0] = SK_ColorRED;
colors[1] = SK_ColorGREEN;
show_image(canvas, small, small, colors, fProc);
canvas->translate(0, SkIntToScalar(150));
colors[0] = SK_ColorBLUE;
colors[1] = SK_ColorMAGENTA;
show_image(canvas, big, small, colors, fProc);
canvas->translate(0, SkIntToScalar(150));
colors[0] = SK_ColorMAGENTA;
colors[1] = SK_ColorYELLOW;
show_image(canvas, medium, medium, colors, fProc);
canvas->translate(0, SkIntToScalar(150));
colors[0] = SK_ColorGREEN;
colors[1] = SK_ColorYELLOW;
// as of this writing, the raster code will fail to draw the scaled version
// since it has a 64K limit on x,y coordinates... (but gpu should succeed)
show_image(canvas, veryBig, small, colors, fProc);
}
private:
typedef skiagm::GM INHERITED;
};
DEF_GM( return new VeryLargeBitmapGM(make_raster_image, "bitmap"); )
DEF_GM( return new VeryLargeBitmapGM(make_picture_image, "_picture_image"); )
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