123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149 |
- /*
- * 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 "gm/gm.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkColor.h"
- #include "include/core/SkColorSpace.h"
- #include "include/core/SkData.h"
- #include "include/core/SkEncodedImageFormat.h"
- #include "include/core/SkImage.h"
- #include "include/core/SkImageInfo.h"
- #include "include/core/SkMatrix.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkPicture.h"
- #include "include/core/SkPictureRecorder.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRefCnt.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/core/SkTypes.h"
- #include <utility>
- class GrContext;
- static void draw_something(SkCanvas* canvas, const SkRect& bounds) {
- SkPaint paint;
- paint.setAntiAlias(true);
- paint.setColor(SK_ColorRED);
- paint.setStyle(SkPaint::kStroke_Style);
- paint.setStrokeWidth(10);
- canvas->drawRect(bounds, paint);
- paint.setStyle(SkPaint::kFill_Style);
- paint.setColor(SK_ColorBLUE);
- canvas->drawOval(bounds, paint);
- }
- typedef sk_sp<SkImage> (*ImageMakerProc)(GrContext*, SkPicture*, const SkImageInfo&);
- static sk_sp<SkImage> make_raster(GrContext*, SkPicture* pic, const SkImageInfo& info) {
- auto surface(SkSurface::MakeRaster(info));
- surface->getCanvas()->clear(0);
- surface->getCanvas()->drawPicture(pic);
- return surface->makeImageSnapshot();
- }
- static sk_sp<SkImage> make_texture(GrContext* ctx, SkPicture* pic, const SkImageInfo& info) {
- if (!ctx) {
- return nullptr;
- }
- auto surface(SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo, info));
- if (!surface) {
- return nullptr;
- }
- surface->getCanvas()->clear(0);
- surface->getCanvas()->drawPicture(pic);
- return surface->makeImageSnapshot();
- }
- static sk_sp<SkImage> make_pict_gen(GrContext*, SkPicture* pic, const SkImageInfo& info) {
- return SkImage::MakeFromPicture(sk_ref_sp(pic), info.dimensions(), nullptr, nullptr,
- SkImage::BitDepth::kU8,
- SkColorSpace::MakeSRGB());
- }
- static sk_sp<SkImage> make_encode_gen(GrContext* ctx, SkPicture* pic, const SkImageInfo& info) {
- sk_sp<SkImage> src(make_raster(ctx, pic, info));
- if (!src) {
- return nullptr;
- }
- sk_sp<SkData> encoded = src->encodeToData(SkEncodedImageFormat::kPNG, 100);
- if (!encoded) {
- return nullptr;
- }
- return SkImage::MakeFromEncoded(std::move(encoded));
- }
- const ImageMakerProc gProcs[] = {
- make_raster,
- make_texture,
- make_pict_gen,
- make_encode_gen,
- };
- /*
- * Exercise drawing pictures inside an image, showing that the image version is pixelated
- * (correctly) when it is inside an image.
- */
- class ImageShaderGM : public skiagm::GM {
- sk_sp<SkPicture> fPicture;
- public:
- ImageShaderGM() {}
- protected:
- SkString onShortName() override {
- return SkString("image-shader");
- }
- SkISize onISize() override {
- return SkISize::Make(850, 450);
- }
- void onOnceBeforeDraw() override {
- const SkRect bounds = SkRect::MakeWH(100, 100);
- SkPictureRecorder recorder;
- draw_something(recorder.beginRecording(bounds), bounds);
- fPicture = recorder.finishRecordingAsPicture();
- }
- void testImage(SkCanvas* canvas, SkImage* image) {
- SkAutoCanvasRestore acr(canvas, true);
- canvas->drawImage(image, 0, 0);
- canvas->translate(0, 120);
- const SkTileMode tile = SkTileMode::kRepeat;
- const SkMatrix localM = SkMatrix::MakeTrans(-50, -50);
- SkPaint paint;
- paint.setShader(image->makeShader(tile, tile, &localM));
- paint.setAntiAlias(true);
- canvas->drawCircle(50, 50, 50, paint);
- }
- void onDraw(SkCanvas* canvas) override {
- canvas->translate(20, 20);
- const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
- for (size_t i = 0; i < SK_ARRAY_COUNT(gProcs); ++i) {
- sk_sp<SkImage> image(gProcs[i](canvas->getGrContext(), fPicture.get(), info));
- if (image) {
- this->testImage(canvas, image.get());
- }
- canvas->translate(120, 0);
- }
- }
- private:
- typedef skiagm::GM INHERITED;
- };
- DEF_GM( return new ImageShaderGM; )
|