c80ee456ad
This reverts commit 046c2b7d90.
Reason for revert: need to update/guard flutter
Original change's description:
> move onto new factories for SkMatrix
>
> Just rename, no functional changes expected.
>
> Change-Id: Id77ab1cf6b1cab35087a7c56000750912cf47383
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/290831
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Florin Malita <fmalita@chromium.org>
TBR=fmalita@chromium.org,reed@google.com
Change-Id: Ic74f177128913374b8c60b4df88f04cf72fbacb3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/291359
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
336 lines
11 KiB
C++
336 lines
11 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/gm.h"
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#include "include/core/SkBitmap.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkColorSpace.h"
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#include "include/core/SkImage.h"
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#include "include/core/SkImageGenerator.h"
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#include "include/core/SkImageInfo.h"
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#include "include/core/SkMatrix.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkPicture.h"
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#include "include/core/SkPictureRecorder.h"
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#include "include/core/SkPoint.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkSurface.h"
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#include "include/core/SkTypes.h"
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#include "include/gpu/GrContext.h"
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#include "include/gpu/GrTypes.h"
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#include "include/private/GrTypesPriv.h"
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#include "src/gpu/GrContextPriv.h"
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#include "src/gpu/GrSamplerState.h"
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#include "src/gpu/GrSurfaceContext.h"
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#include "src/gpu/GrTextureProxy.h"
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#include "src/image/SkImage_Base.h"
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#include "src/image/SkImage_Gpu.h"
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#include <memory>
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#include <utility>
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class GrRecordingContext;
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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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/*
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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 ImagePictGM : public skiagm::GM {
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sk_sp<SkPicture> fPicture;
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sk_sp<SkImage> fImage0;
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sk_sp<SkImage> fImage1;
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public:
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ImagePictGM() {}
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protected:
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SkString onShortName() override {
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return SkString("image-picture");
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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::MakeXYWH(100, 100, 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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// extract enough just for the oval.
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const SkISize size = SkISize::Make(100, 100);
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auto srgbColorSpace = SkColorSpace::MakeSRGB();
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SkMatrix matrix;
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matrix.setTranslate(-100, -100);
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fImage0 = SkImage::MakeFromPicture(fPicture, size, &matrix, nullptr,
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SkImage::BitDepth::kU8, srgbColorSpace);
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matrix.postTranslate(-50, -50);
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matrix.postRotate(45);
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matrix.postTranslate(50, 50);
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fImage1 = SkImage::MakeFromPicture(fPicture, size, &matrix, nullptr,
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SkImage::BitDepth::kU8, srgbColorSpace);
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}
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void drawSet(SkCanvas* canvas) const {
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SkMatrix matrix = SkMatrix::MakeTrans(-100, -100);
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canvas->drawPicture(fPicture, &matrix, nullptr);
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canvas->drawImage(fImage0.get(), 150, 0);
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canvas->drawImage(fImage1.get(), 300, 0);
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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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this->drawSet(canvas);
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canvas->save();
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canvas->translate(0, 130);
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canvas->scale(0.25f, 0.25f);
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this->drawSet(canvas);
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canvas->restore();
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canvas->save();
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canvas->translate(0, 200);
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canvas->scale(2, 2);
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this->drawSet(canvas);
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canvas->restore();
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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 ImagePictGM; )
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///////////////////////////////////////////////////////////////////////////////////////////////////
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static std::unique_ptr<SkImageGenerator> make_pic_generator(GrContext*, sk_sp<SkPicture> pic) {
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SkMatrix matrix;
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matrix.setTranslate(-100, -100);
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return SkImageGenerator::MakeFromPicture({ 100, 100 }, std::move(pic), &matrix, nullptr,
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SkImage::BitDepth::kU8,
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SkColorSpace::MakeSRGB());
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}
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class RasterGenerator : public SkImageGenerator {
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public:
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RasterGenerator(const SkBitmap& bm) : SkImageGenerator(bm.info()), fBM(bm)
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{}
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protected:
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bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
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const Options&) override {
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SkASSERT(fBM.width() == info.width());
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SkASSERT(fBM.height() == info.height());
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return fBM.readPixels(info, pixels, rowBytes, 0, 0);
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}
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private:
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SkBitmap fBM;
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};
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static std::unique_ptr<SkImageGenerator> make_ras_generator(GrContext*, sk_sp<SkPicture> pic) {
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SkBitmap bm;
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bm.allocN32Pixels(100, 100);
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SkCanvas canvas(bm);
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canvas.clear(0);
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canvas.translate(-100, -100);
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canvas.drawPicture(pic);
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return std::make_unique<RasterGenerator>(bm);
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}
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class EmptyGenerator : public SkImageGenerator {
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public:
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EmptyGenerator(const SkImageInfo& info) : SkImageGenerator(info) {}
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};
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class TextureGenerator : public SkImageGenerator {
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public:
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TextureGenerator(GrContext* ctx, const SkImageInfo& info, sk_sp<SkPicture> pic)
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: SkImageGenerator(info)
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, fCtx(SkRef(ctx)) {
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sk_sp<SkSurface> surface(SkSurface::MakeRenderTarget(ctx, SkBudgeted::kYes, info, 0,
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kTopLeft_GrSurfaceOrigin, nullptr));
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if (surface) {
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surface->getCanvas()->clear(0);
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surface->getCanvas()->translate(-100, -100);
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surface->getCanvas()->drawPicture(pic);
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sk_sp<SkImage> image(surface->makeImageSnapshot());
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const GrSurfaceProxyView* view = as_IB(image)->view(fCtx.get());
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if (view) {
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fView = *view;
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}
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}
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}
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protected:
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GrSurfaceProxyView onGenerateTexture(GrRecordingContext* ctx,
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const SkImageInfo& info,
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const SkIPoint& origin,
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GrMipMapped mipMapped,
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GrImageTexGenPolicy policy) override {
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SkASSERT(ctx);
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SkASSERT(ctx == fCtx.get());
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if (!fView) {
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return {};
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}
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if (origin.fX == 0 && origin.fY == 0 && info.dimensions() == fView.proxy()->dimensions() &&
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policy == GrImageTexGenPolicy::kDraw) {
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return fView;
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}
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auto budgeted = policy == GrImageTexGenPolicy::kNew_Uncached_Unbudgeted ? SkBudgeted::kNo
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: SkBudgeted::kYes;
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return GrSurfaceProxyView::Copy(
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fCtx.get(), fView, mipMapped,
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SkIRect::MakeXYWH(origin.x(), origin.y(), info.width(), info.height()),
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SkBackingFit::kExact, budgeted);
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}
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private:
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sk_sp<GrContext> fCtx;
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GrSurfaceProxyView fView;
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};
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static std::unique_ptr<SkImageGenerator> make_tex_generator(GrContext* ctx, sk_sp<SkPicture> pic) {
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const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
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if (!ctx) {
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return std::make_unique<EmptyGenerator>(info);
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}
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return std::make_unique<TextureGenerator>(ctx, info, pic);
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}
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class ImageCacheratorGM : public skiagm::GM {
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SkString fName;
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std::unique_ptr<SkImageGenerator> (*fFactory)(GrContext*, sk_sp<SkPicture>);
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sk_sp<SkPicture> fPicture;
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sk_sp<SkImage> fImage;
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sk_sp<SkImage> fImageSubset;
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public:
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ImageCacheratorGM(const char suffix[],
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std::unique_ptr<SkImageGenerator> (*factory)(GrContext*, sk_sp<SkPicture>))
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: fFactory(factory)
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{
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fName.printf("image-cacherator-from-%s", suffix);
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}
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protected:
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SkString onShortName() override {
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return fName;
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}
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SkISize onISize() override {
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return SkISize::Make(960, 450);
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}
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void onOnceBeforeDraw() override {
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const SkRect bounds = SkRect::MakeXYWH(100, 100, 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 makeCaches(GrContext* ctx) {
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auto gen = fFactory(ctx, fPicture);
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fImage = SkImage::MakeFromGenerator(std::move(gen));
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const SkIRect subset = SkIRect::MakeLTRB(50, 50, 100, 100);
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gen = fFactory(ctx, fPicture);
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fImageSubset = SkImage::MakeFromGenerator(std::move(gen), &subset);
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SkASSERT(fImage->dimensions() == SkISize::Make(100, 100));
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SkASSERT(fImageSubset->dimensions() == SkISize::Make(50, 50));
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}
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static void draw_as_bitmap(SkCanvas* canvas, SkImage* image, SkScalar x, SkScalar y) {
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SkBitmap bitmap;
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as_IB(image)->getROPixels(&bitmap);
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canvas->drawBitmap(bitmap, x, y);
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}
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static void draw_as_tex(SkCanvas* canvas, SkImage* image, SkScalar x, SkScalar y) {
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GrSurfaceProxyView view = as_IB(image)->refView(canvas->getGrContext(), GrMipMapped::kNo);
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if (!view) {
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// show placeholder if we have no texture
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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SkRect r = SkRect::MakeXYWH(x, y, SkIntToScalar(image->width()),
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SkIntToScalar(image->width()));
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canvas->drawRect(r, paint);
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canvas->drawLine(r.left(), r.top(), r.right(), r.bottom(), paint);
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canvas->drawLine(r.left(), r.bottom(), r.right(), r.top(), paint);
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return;
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}
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// No API to draw a GrTexture directly, so we cheat and create a private image subclass
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sk_sp<SkImage> texImage(new SkImage_Gpu(sk_ref_sp(canvas->getGrContext()),
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image->uniqueID(), std::move(view),
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image->colorType(), image->alphaType(),
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image->refColorSpace()));
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canvas->drawImage(texImage.get(), x, y);
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}
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void drawSet(SkCanvas* canvas) const {
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SkMatrix matrix = SkMatrix::MakeTrans(-100, -100);
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canvas->drawPicture(fPicture, &matrix, nullptr);
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// Draw the tex first, so it doesn't hit a lucky cache from the raster version. This
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// way we also can force the generateTexture call.
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draw_as_tex(canvas, fImage.get(), 310, 0);
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draw_as_tex(canvas, fImageSubset.get(), 310+101, 0);
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draw_as_bitmap(canvas, fImage.get(), 150, 0);
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draw_as_bitmap(canvas, fImageSubset.get(), 150+101, 0);
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}
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void onDraw(SkCanvas* canvas) override {
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this->makeCaches(canvas->getGrContext());
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canvas->translate(20, 20);
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this->drawSet(canvas);
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canvas->save();
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canvas->translate(0, 130);
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canvas->scale(0.25f, 0.25f);
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this->drawSet(canvas);
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canvas->restore();
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canvas->save();
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canvas->translate(0, 200);
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canvas->scale(2, 2);
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this->drawSet(canvas);
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canvas->restore();
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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 ImageCacheratorGM("picture", make_pic_generator); )
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DEF_GM( return new ImageCacheratorGM("raster", make_ras_generator); )
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DEF_GM( return new ImageCacheratorGM("texture", make_tex_generator); )
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