fe63045f07
BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1829303002 Review URL: https://codereview.chromium.org/1829303002
510 lines
16 KiB
C++
510 lines
16 KiB
C++
/*
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* Copyright 2011 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 <functional>
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#include "gm.h"
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#include "SkAutoPixmapStorage.h"
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#include "SkData.h"
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#include "SkCanvas.h"
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#include "SkRandom.h"
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#include "SkStream.h"
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#include "SkSurface.h"
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#if SK_SUPPORT_GPU
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#include "GrContext.h"
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#endif
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static void drawJpeg(SkCanvas* canvas, const SkISize& size) {
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// TODO: Make this draw a file that is checked in, so it can
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// be exercised on machines other than mike's. Will require a
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// rebaseline.
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sk_sp<SkData> data(SkData::MakeFromFileName("/Users/mike/Downloads/skia.google.jpeg"));
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if (nullptr == data) {
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return;
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}
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sk_sp<SkImage> image = SkImage::MakeFromEncoded(std::move(data));
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if (image) {
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SkAutoCanvasRestore acr(canvas, true);
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canvas->scale(size.width() * 1.0f / image->width(),
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size.height() * 1.0f / image->height());
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canvas->drawImage(image, 0, 0, nullptr);
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}
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}
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static void drawContents(SkSurface* surface, SkColor fillC) {
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SkSize size = SkSize::Make(SkIntToScalar(surface->width()),
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SkIntToScalar(surface->height()));
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SkCanvas* canvas = surface->getCanvas();
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SkScalar stroke = size.fWidth / 10;
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SkScalar radius = (size.fWidth - stroke) / 2;
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(fillC);
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canvas->drawCircle(size.fWidth/2, size.fHeight/2, radius, paint);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(stroke);
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paint.setColor(SK_ColorBLACK);
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canvas->drawCircle(size.fWidth/2, size.fHeight/2, radius, paint);
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}
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static void test_surface(SkCanvas* canvas, SkSurface* surf, bool usePaint) {
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drawContents(surf, SK_ColorRED);
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sk_sp<SkImage> imgR = surf->makeImageSnapshot();
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if (true) {
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sk_sp<SkImage> imgR2 = surf->makeImageSnapshot();
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SkASSERT(imgR == imgR2);
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}
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drawContents(surf, SK_ColorGREEN);
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sk_sp<SkImage> imgG = surf->makeImageSnapshot();
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// since we've drawn after we snapped imgR, imgG will be a different obj
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SkASSERT(imgR != imgG);
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drawContents(surf, SK_ColorBLUE);
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SkPaint paint;
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// paint.setFilterBitmap(true);
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// paint.setAlpha(0x80);
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canvas->drawImage(imgR, 0, 0, usePaint ? &paint : nullptr);
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canvas->drawImage(imgG, 0, 80, usePaint ? &paint : nullptr);
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surf->draw(canvas, 0, 160, usePaint ? &paint : nullptr);
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SkRect src1, src2, src3;
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src1.iset(0, 0, surf->width(), surf->height());
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src2.iset(-surf->width() / 2, -surf->height() / 2,
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surf->width(), surf->height());
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src3.iset(0, 0, surf->width() / 2, surf->height() / 2);
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SkRect dst1, dst2, dst3, dst4;
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dst1.set(0, 240, 65, 305);
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dst2.set(0, 320, 65, 385);
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dst3.set(0, 400, 65, 465);
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dst4.set(0, 480, 65, 545);
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canvas->drawImageRect(imgR, src1, dst1, usePaint ? &paint : nullptr);
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canvas->drawImageRect(imgG, src2, dst2, usePaint ? &paint : nullptr);
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canvas->drawImageRect(imgR, src3, dst3, usePaint ? &paint : nullptr);
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canvas->drawImageRect(imgG, dst4, usePaint ? &paint : nullptr);
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}
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class ImageGM : public skiagm::GM {
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void* fBuffer;
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size_t fBufferSize;
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SkSize fSize;
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enum {
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W = 64,
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H = 64,
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RB = W * 4 + 8,
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};
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public:
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ImageGM() {
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fBufferSize = RB * H;
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fBuffer = sk_malloc_throw(fBufferSize);
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fSize.set(SkIntToScalar(W), SkIntToScalar(H));
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}
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virtual ~ImageGM() {
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sk_free(fBuffer);
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}
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protected:
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SkString onShortName() override {
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return SkString("image-surface");
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}
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SkISize onISize() override {
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return SkISize::Make(960, 1200);
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}
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void onDraw(SkCanvas* canvas) override {
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drawJpeg(canvas, this->getISize());
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canvas->scale(2, 2);
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static const char* kLabel1 = "Original Img";
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static const char* kLabel2 = "Modified Img";
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static const char* kLabel3 = "Cur Surface";
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static const char* kLabel4 = "Full Crop";
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static const char* kLabel5 = "Over-crop";
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static const char* kLabel6 = "Upper-left";
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static const char* kLabel7 = "No Crop";
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static const char* kLabel8 = "Pre-Alloc Img";
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static const char* kLabel9 = "New Alloc Img";
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static const char* kLabel10 = "GPU";
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SkPaint textPaint;
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textPaint.setAntiAlias(true);
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sk_tool_utils::set_portable_typeface(&textPaint);
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textPaint.setTextSize(8);
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canvas->drawText(kLabel1, strlen(kLabel1), 10, 60, textPaint);
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canvas->drawText(kLabel2, strlen(kLabel2), 10, 140, textPaint);
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canvas->drawText(kLabel3, strlen(kLabel3), 10, 220, textPaint);
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canvas->drawText(kLabel4, strlen(kLabel4), 10, 300, textPaint);
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canvas->drawText(kLabel5, strlen(kLabel5), 10, 380, textPaint);
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canvas->drawText(kLabel6, strlen(kLabel6), 10, 460, textPaint);
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canvas->drawText(kLabel7, strlen(kLabel7), 10, 540, textPaint);
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canvas->drawText(kLabel8, strlen(kLabel8), 80, 10, textPaint);
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canvas->drawText(kLabel9, strlen(kLabel9), 160, 10, textPaint);
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canvas->drawText(kLabel10, strlen(kLabel10), 265, 10, textPaint);
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canvas->translate(80, 20);
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// since we draw into this directly, we need to start fresh
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sk_bzero(fBuffer, fBufferSize);
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SkImageInfo info = SkImageInfo::MakeN32Premul(W, H);
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sk_sp<SkSurface> surf0(SkSurface::MakeRasterDirect(info, fBuffer, RB));
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sk_sp<SkSurface> surf1(SkSurface::MakeRaster(info));
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sk_sp<SkSurface> surf2; // gpu
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#if SK_SUPPORT_GPU
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surf2 = SkSurface::MakeRenderTarget(canvas->getGrContext(), SkBudgeted::kNo, info);
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#endif
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test_surface(canvas, surf0.get(), true);
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canvas->translate(80, 0);
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test_surface(canvas, surf1.get(), true);
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if (surf2) {
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canvas->translate(80, 0);
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test_surface(canvas, surf2.get(), true);
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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 ImageGM; )
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#include "SkPictureRecorder.h"
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static void draw_pixmap(SkCanvas* canvas, const SkPixmap& pmap) {
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SkBitmap bitmap;
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bitmap.installPixels(pmap);
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canvas->drawBitmap(bitmap, 0, 0, nullptr);
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}
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static void show_scaled_pixels(SkCanvas* canvas, SkImage* image) {
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SkAutoCanvasRestore acr(canvas, true);
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canvas->drawImage(image, 0, 0, nullptr);
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canvas->translate(110, 10);
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const SkImageInfo info = SkImageInfo::MakeN32Premul(40, 40);
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SkAutoPixmapStorage storage;
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storage.alloc(info);
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const SkImage::CachingHint chints[] = {
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SkImage::kAllow_CachingHint, SkImage::kDisallow_CachingHint,
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};
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const SkFilterQuality qualities[] = {
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kNone_SkFilterQuality, kLow_SkFilterQuality, kMedium_SkFilterQuality, kHigh_SkFilterQuality,
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};
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for (auto ch : chints) {
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canvas->save();
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for (auto q : qualities) {
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if (image->scalePixels(storage, q, ch)) {
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draw_pixmap(canvas, storage);
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}
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canvas->translate(70, 0);
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}
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canvas->restore();
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canvas->translate(0, 45);
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}
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}
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static void draw_contents(SkCanvas* canvas) {
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(20);
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canvas->drawCircle(50, 50, 35, paint);
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}
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static sk_sp<SkImage> make_raster(const SkImageInfo& info, GrContext*, void (*draw)(SkCanvas*)) {
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auto surface(SkSurface::MakeRaster(info));
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draw(surface->getCanvas());
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return surface->makeImageSnapshot();
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}
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static sk_sp<SkImage> make_picture(const SkImageInfo& info, GrContext*, void (*draw)(SkCanvas*)) {
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SkPictureRecorder recorder;
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draw(recorder.beginRecording(SkRect::MakeIWH(info.width(), info.height())));
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return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(),
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info.dimensions(), nullptr, nullptr);
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}
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static sk_sp<SkImage> make_codec(const SkImageInfo& info, GrContext*, void (*draw)(SkCanvas*)) {
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sk_sp<SkImage> image(make_raster(info, nullptr, draw));
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sk_sp<SkData> data(image->encode());
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return SkImage::MakeFromEncoded(data);
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}
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static sk_sp<SkImage> make_gpu(const SkImageInfo& info, GrContext* ctx, void (*draw)(SkCanvas*)) {
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if (!ctx) { return nullptr; }
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auto surface(SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo, info));
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draw(surface->getCanvas());
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return surface->makeImageSnapshot();
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}
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typedef sk_sp<SkImage> (*ImageMakerProc)(const SkImageInfo&, GrContext*, void (*)(SkCanvas*));
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class ScalePixelsGM : public skiagm::GM {
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public:
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ScalePixelsGM() {}
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protected:
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SkString onShortName() override {
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return SkString("scale-pixels");
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}
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SkISize onISize() override {
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return SkISize::Make(960, 1200);
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}
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void onDraw(SkCanvas* canvas) override {
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const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
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const ImageMakerProc procs[] = {
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make_codec, make_raster, make_picture, make_codec, make_gpu,
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};
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for (auto& proc : procs) {
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sk_sp<SkImage> image(proc(info, canvas->getGrContext(), draw_contents));
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if (image) {
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show_scaled_pixels(canvas, image.get());
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}
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canvas->translate(0, 120);
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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 ScalePixelsGM; )
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///////////////////////////////////////////////////////////////////////////////////////////////////
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#include "SkImageGenerator.h"
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static SkImageInfo make_info(SkImage* img) {
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return SkImageInfo::MakeN32(img->width(), img->height(),
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img->isOpaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
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}
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// Its simple, but I wonder if we should expose this formally?
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//
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class ImageGeneratorFromImage : public SkImageGenerator {
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public:
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ImageGeneratorFromImage(SkImage* img) : INHERITED(make_info(img)), fImg(SkRef(img)) {}
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protected:
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bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, SkPMColor ctable[],
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int* ctableCount) override {
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return fImg->readPixels(info, pixels, rowBytes, 0, 0);
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}
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private:
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SkAutoTUnref<SkImage> fImg;
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typedef SkImageGenerator INHERITED;
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};
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static void draw_opaque_contents(SkCanvas* canvas) {
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canvas->drawColor(0xFFFF8844);
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(20);
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canvas->drawCircle(50, 50, 35, paint);
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}
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static SkImageGenerator* gen_raster(const SkImageInfo& info) {
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auto surface(SkSurface::MakeRaster(info));
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draw_opaque_contents(surface->getCanvas());
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return new ImageGeneratorFromImage(surface->makeImageSnapshot().get());
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}
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static SkImageGenerator* gen_picture(const SkImageInfo& info) {
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SkPictureRecorder recorder;
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draw_opaque_contents(recorder.beginRecording(SkRect::MakeIWH(info.width(), info.height())));
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sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture());
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return SkImageGenerator::NewFromPicture(info.dimensions(), pict.get(), nullptr, nullptr);
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}
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static SkImageGenerator* gen_png(const SkImageInfo& info) {
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sk_sp<SkImage> image(make_raster(info, nullptr, draw_opaque_contents));
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SkAutoTUnref<SkData> data(image->encode(SkImageEncoder::kPNG_Type, 100));
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return SkImageGenerator::NewFromEncoded(data);
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}
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static SkImageGenerator* gen_jpg(const SkImageInfo& info) {
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sk_sp<SkImage> image(make_raster(info, nullptr, draw_opaque_contents));
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SkAutoTUnref<SkData> data(image->encode(SkImageEncoder::kJPEG_Type, 100));
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return SkImageGenerator::NewFromEncoded(data);
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}
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typedef SkImageGenerator* (*GeneratorMakerProc)(const SkImageInfo&);
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static void show_scaled_generator(SkCanvas* canvas, SkImageGenerator* gen) {
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const SkImageInfo genInfo = gen->getInfo();
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SkAutoCanvasRestore acr(canvas, true);
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SkBitmap bm;
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bm.allocPixels(genInfo);
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if (gen->getPixels(bm.info(), bm.getPixels(), bm.rowBytes())) {
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canvas->drawBitmap(bm, 0, 0, nullptr);
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}
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canvas->translate(110, 0);
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const float scales[] = { 0.75f, 0.5f, 0.25f };
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for (auto scale : scales) {
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SkImageGenerator::SupportedSizes sizes;
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if (gen->computeScaledDimensions(scale, &sizes)) {
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const SkImageInfo info = SkImageInfo::MakeN32Premul(sizes.fSizes[0].width(),
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sizes.fSizes[0].height());
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bm.allocPixels(info);
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SkPixmap pmap;
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bm.peekPixels(&pmap);
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if (gen->generateScaledPixels(pmap)) {
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canvas->drawBitmap(bm, 0, SkIntToScalar(genInfo.height() - info.height())/2);
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}
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}
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canvas->translate(100, 0);
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}
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}
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class ScaleGeneratorGM : public skiagm::GM {
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public:
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ScaleGeneratorGM() {}
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protected:
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SkString onShortName() override {
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return SkString("scale-generator");
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}
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SkISize onISize() override {
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return SkISize::Make(500, 500);
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}
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void onDraw(SkCanvas* canvas) override {
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canvas->translate(10, 10);
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// explicitly make it opaque, so we can test JPEG (which is only ever opaque)
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const SkImageInfo info = SkImageInfo::MakeN32(100, 100, kOpaque_SkAlphaType);
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const GeneratorMakerProc procs[] = {
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gen_raster, gen_picture, gen_png, gen_jpg,
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};
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for (auto& proc : procs) {
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SkAutoTDelete<SkImageGenerator> gen(proc(info));
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if (gen) {
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show_scaled_generator(canvas, gen);
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}
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canvas->translate(0, 120);
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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 ScaleGeneratorGM; )
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#if SK_SUPPORT_GPU
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#include "GrContextFactory.h"
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#endif
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DEF_SIMPLE_GM(new_texture_image, canvas, 225, 60) {
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GrContext* context = nullptr;
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#if SK_SUPPORT_GPU
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context = canvas->getGrContext();
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GrContextFactory factory;
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#endif
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if (!context) {
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skiagm::GM::DrawGpuOnlyMessage(canvas);
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return;
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}
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auto render_image = [](SkCanvas* canvas) {
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canvas->clear(SK_ColorBLUE);
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SkPaint paint;
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paint.setColor(SK_ColorRED);
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canvas->drawRect(SkRect::MakeXYWH(10.f,10.f,10.f,10.f), paint);
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paint.setColor(SK_ColorGREEN);
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canvas->drawRect(SkRect::MakeXYWH(30.f,10.f,10.f,10.f), paint);
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paint.setColor(SK_ColorYELLOW);
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canvas->drawRect(SkRect::MakeXYWH(10.f,30.f,10.f,10.f), paint);
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paint.setColor(SK_ColorCYAN);
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canvas->drawRect(SkRect::MakeXYWH(30.f,30.f,10.f,10.f), paint);
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};
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static const int kSize = 50;
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SkBitmap bmp;
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bmp.allocN32Pixels(kSize, kSize);
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SkCanvas bmpCanvas(bmp);
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render_image(&bmpCanvas);
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std::function<sk_sp<SkImage>()> imageFactories[] = {
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// Create sw raster image.
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[bmp] {
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return SkImage::MakeFromBitmap(bmp);
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},
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// Create encoded image.
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[bmp] {
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sk_sp<SkData> src(
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SkImageEncoder::EncodeData(bmp, SkImageEncoder::kPNG_Type, 100));
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return SkImage::MakeFromEncoded(std::move(src));
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},
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// Create a picture image.
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[render_image] {
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SkPictureRecorder recorder;
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SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(kSize), SkIntToScalar(kSize));
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render_image(canvas);
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return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(),
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SkISize::Make(kSize, kSize), nullptr, nullptr);
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},
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// Create a texture image
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[context, render_image]() -> sk_sp<SkImage> {
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auto surface(
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SkSurface::MakeRenderTarget(context, SkBudgeted::kYes,
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SkImageInfo::MakeN32Premul(kSize, kSize)));
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if (!surface) {
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return nullptr;
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}
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render_image(surface->getCanvas());
|
|
return surface->makeImageSnapshot();
|
|
}
|
|
};
|
|
|
|
static const SkScalar kPad = 5.f;
|
|
canvas->translate(kPad, kPad);
|
|
for (auto factory : imageFactories) {
|
|
auto image(factory());
|
|
if (!image) {
|
|
continue;
|
|
}
|
|
if (context) {
|
|
sk_sp<SkImage> texImage(image->makeTextureImage(context));
|
|
if (texImage) {
|
|
canvas->drawImage(texImage, 0, 0);
|
|
}
|
|
}
|
|
canvas->translate(image->width() + kPad, 0);
|
|
}
|
|
}
|