db6830162e
(re-land248ff02&2cb6cb7, with changes) - Hide SkImageEncoder class in private header. - SkImageEncoder::Type becomes SkEncodedImageFormat - SkEncodedFormat becomes SkEncodedImageFormat - SkImageEncoder static functions replaced with single function EncodeImage() - utility wrappers for EncodeImage() are in sk_tool_utils.h TODO: remove link-time registration mechanism. TODO: clean up clients use of API and flip the flag. TODO: implement EncodeImage() in chromeium/skia/ext Change-Id: I47d451e50be4d5c6c130869c7fa7c2857243d9f0 Reviewed-on: https://skia-review.googlesource.com/4909 Reviewed-by: Mike Reed <reed@google.com> Reviewed-by: Leon Scroggins <scroggo@google.com> Reviewed-on: https://skia-review.googlesource.com/5186 Commit-Queue: Hal Canary <halcanary@google.com> Reviewed-by: Hal Canary <halcanary@google.com>
130 lines
3.7 KiB
C++
130 lines
3.7 KiB
C++
/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkCanvas.h"
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#include "SkData.h"
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#include "SkImage.h"
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#include "SkPictureRecorder.h"
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#include "SkSurface.h"
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static void draw_something(SkCanvas* canvas, const SkRect& bounds) {
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorRED);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(10);
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canvas->drawRect(bounds, paint);
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paint.setStyle(SkPaint::kFill_Style);
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paint.setColor(SK_ColorBLUE);
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canvas->drawOval(bounds, paint);
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}
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typedef sk_sp<SkImage> (*ImageMakerProc)(GrContext*, SkPicture*, const SkImageInfo&);
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static sk_sp<SkImage> make_raster(GrContext*, SkPicture* pic, const SkImageInfo& info) {
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auto surface(SkSurface::MakeRaster(info));
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surface->getCanvas()->clear(0);
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surface->getCanvas()->drawPicture(pic);
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return surface->makeImageSnapshot();
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}
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static sk_sp<SkImage> make_texture(GrContext* ctx, SkPicture* pic, const SkImageInfo& info) {
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if (!ctx) {
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return nullptr;
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}
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auto surface(SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo, info));
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if (!surface) {
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return nullptr;
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}
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surface->getCanvas()->clear(0);
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surface->getCanvas()->drawPicture(pic);
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return surface->makeImageSnapshot();
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}
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static sk_sp<SkImage> make_pict_gen(GrContext*, SkPicture* pic, const SkImageInfo& info) {
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return SkImage::MakeFromPicture(sk_ref_sp(pic), info.dimensions(), nullptr, nullptr);
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}
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static sk_sp<SkImage> make_encode_gen(GrContext* ctx, SkPicture* pic, const SkImageInfo& info) {
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sk_sp<SkImage> src(make_raster(ctx, pic, info));
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if (!src) {
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return nullptr;
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}
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sk_sp<SkData> encoded(src->encode(SkEncodedImageFormat::kPNG, 100));
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if (!encoded) {
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return nullptr;
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}
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return SkImage::MakeFromEncoded(std::move(encoded));
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}
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const ImageMakerProc gProcs[] = {
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make_raster,
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make_texture,
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make_pict_gen,
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make_encode_gen,
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};
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/*
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* Exercise drawing pictures inside an image, showing that the image version is pixelated
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* (correctly) when it is inside an image.
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*/
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class ImageShaderGM : public skiagm::GM {
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sk_sp<SkPicture> fPicture;
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public:
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ImageShaderGM() {}
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protected:
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SkString onShortName() override {
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return SkString("image-shader");
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}
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SkISize onISize() override {
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return SkISize::Make(850, 450);
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}
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void onOnceBeforeDraw() override {
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const SkRect bounds = SkRect::MakeWH(100, 100);
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SkPictureRecorder recorder;
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draw_something(recorder.beginRecording(bounds), bounds);
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fPicture = recorder.finishRecordingAsPicture();
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}
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void testImage(SkCanvas* canvas, SkImage* image) {
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SkAutoCanvasRestore acr(canvas, true);
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canvas->drawImage(image, 0, 0);
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canvas->translate(0, 120);
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const SkShader::TileMode tile = SkShader::kRepeat_TileMode;
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const SkMatrix localM = SkMatrix::MakeTrans(-50, -50);
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SkPaint paint;
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paint.setShader(image->makeShader(tile, tile, &localM));
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paint.setAntiAlias(true);
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canvas->drawCircle(50, 50, 50, paint);
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}
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void onDraw(SkCanvas* canvas) override {
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canvas->translate(20, 20);
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const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
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for (size_t i = 0; i < SK_ARRAY_COUNT(gProcs); ++i) {
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sk_sp<SkImage> image(gProcs[i](canvas->getGrContext(), fPicture.get(), info));
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if (image) {
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this->testImage(canvas, image.get());
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}
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canvas->translate(120, 0);
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}
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}
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private:
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typedef skiagm::GM INHERITED;
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};
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DEF_GM( return new ImageShaderGM; )
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