blob: 2cade42d9ccc02c92782e8ac85ddfed0f1eb3d14 [file] [log] [blame]
* 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/gm.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkImage.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPicture.h"
#include "include/core/SkPictureRecorder.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTileMode.h"
#include "include/effects/SkGradientShader.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;
SkPaint paint;
paint.setShader(SkGradientShader::MakeRadial(center, radius, colors, nullptr, 2,
static sk_sp<SkImage> make_raster_image(int width, int height, SkColor colors[2]) {
auto surface(SkSurface::MakeRasterN32Premul(width, height));
draw(surface->getCanvas(), width, height, colors);
return surface->makeImageSnapshot();
static sk_sp<SkImage> make_picture_image(int width, int height, SkColor colors[2]) {
SkPictureRecorder recorder;
draw(recorder.beginRecording(SkRect::MakeIWH(width, height)), width, height, colors);
return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(),
{width, height}, nullptr, nullptr,
typedef sk_sp<SkImage> (*ImageMakerProc)(int width, int height, SkColor colors[2]);
static void show_image(SkCanvas* canvas, int width, int height, SkColor colors[2],
ImageMakerProc proc) {
sk_sp<SkImage> image(proc(width, height, colors));
SkPaint borderPaint;
SkRect dstRect = SkRect::MakeWH(128.f, 128.f);
canvas->drawImage(image, 0, 0);
canvas->drawRect(dstRect, borderPaint);
dstRect.offset(SkIntToScalar(150), 0);
int hw = width / 2;
int hh = height / 2;
SkRect subset = SkRect::MakeLTRB(hw - 64, hh - 32, hw + 64, hh + 32);
canvas->drawImageRect(image, subset, dstRect, SkSamplingOptions(), nullptr,
canvas->drawRect(dstRect, borderPaint);
dstRect.offset(SkIntToScalar(150), 0);
canvas->drawImageRect(image, dstRect, SkSamplingOptions(), nullptr);
canvas->drawRect(dstRect, borderPaint);
class VeryLargeBitmapGM : public skiagm::GM {
ImageMakerProc fProc;
const char* fName;
VeryLargeBitmapGM(ImageMakerProc proc, const char name[]) : fProc(proc), fName(name) {}
SkString onShortName() override { return SkString(fName); }
SkISize onISize() override { return {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;
// This used to be big enough that we didn't draw on CPU, but now we do.
show_image(canvas, veryBig, small, colors, fProc);
DEF_GM( return new VeryLargeBitmapGM(make_raster_image, "verylargebitmap"); )
DEF_GM( return new VeryLargeBitmapGM(make_picture_image, "verylarge_picture_image"); )