/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "gm.h" #include "SkData.h" #include "SkCanvas.h" #include "SkRandom.h" #include "SkStream.h" #include "SkSurface.h" #if SK_SUPPORT_GPU #include "GrContext.h" #endif static void drawJpeg(SkCanvas* canvas, const SkISize& size) { // TODO: Make this draw a file that is checked in, so it can // be exercised on machines other than mike's. Will require a // rebaseline. SkAutoDataUnref data(SkData::NewFromFileName("/Users/mike/Downloads/skia.google.jpeg")); if (NULL == data.get()) { return; } SkImage* image = SkImage::NewFromData(data); if (image) { SkAutoCanvasRestore acr(canvas, true); canvas->scale(size.width() * 1.0f / image->width(), size.height() * 1.0f / image->height()); canvas->drawImage(image, 0, 0, NULL); image->unref(); } } static void drawContents(SkSurface* surface, SkColor fillC) { SkSize size = SkSize::Make(SkIntToScalar(surface->width()), SkIntToScalar(surface->height())); SkCanvas* canvas = surface->getCanvas(); SkScalar stroke = size.fWidth / 10; SkScalar radius = (size.fWidth - stroke) / 2; SkPaint paint; paint.setAntiAlias(true); paint.setColor(fillC); canvas->drawCircle(size.fWidth/2, size.fHeight/2, radius, paint); paint.setStyle(SkPaint::kStroke_Style); paint.setStrokeWidth(stroke); paint.setColor(SK_ColorBLACK); canvas->drawCircle(size.fWidth/2, size.fHeight/2, radius, paint); } static void test_surface(SkCanvas* canvas, SkSurface* surf, bool usePaint) { drawContents(surf, SK_ColorRED); SkImage* imgR = surf->newImageSnapshot(); if (true) { SkImage* imgR2 = surf->newImageSnapshot(); SkASSERT(imgR == imgR2); imgR2->unref(); } drawContents(surf, SK_ColorGREEN); SkImage* imgG = surf->newImageSnapshot(); // since we've drawn after we snapped imgR, imgG will be a different obj SkASSERT(imgR != imgG); drawContents(surf, SK_ColorBLUE); SkPaint paint; // paint.setFilterBitmap(true); // paint.setAlpha(0x80); canvas->drawImage(imgR, 0, 0, usePaint ? &paint : NULL); canvas->drawImage(imgG, 0, 80, usePaint ? &paint : NULL); surf->draw(canvas, 0, 160, usePaint ? &paint : NULL); SkRect src1, src2, src3; src1.iset(0, 0, surf->width(), surf->height()); src2.iset(-surf->width() / 2, -surf->height() / 2, surf->width(), surf->height()); src3.iset(0, 0, surf->width() / 2, surf->height() / 2); SkRect dst1, dst2, dst3, dst4; dst1.set(0, 240, 65, 305); dst2.set(0, 320, 65, 385); dst3.set(0, 400, 65, 465); dst4.set(0, 480, 65, 545); canvas->drawImageRect(imgR, &src1, dst1, usePaint ? &paint : NULL); canvas->drawImageRect(imgG, &src2, dst2, usePaint ? &paint : NULL); canvas->drawImageRect(imgR, &src3, dst3, usePaint ? &paint : NULL); canvas->drawImageRect(imgG, NULL, dst4, usePaint ? &paint : NULL); imgG->unref(); imgR->unref(); } class ImageGM : public skiagm::GM { void* fBuffer; size_t fBufferSize; SkSize fSize; enum { W = 64, H = 64, RB = W * 4 + 8, }; public: ImageGM() { fBufferSize = RB * H; fBuffer = sk_malloc_throw(fBufferSize); fSize.set(SkIntToScalar(W), SkIntToScalar(H)); } virtual ~ImageGM() { sk_free(fBuffer); } protected: SkString onShortName() override { return SkString("image-surface"); } SkISize onISize() override { return SkISize::Make(960, 1200); } void onDraw(SkCanvas* canvas) override { drawJpeg(canvas, this->getISize()); canvas->scale(2, 2); static const char* kLabel1 = "Original Img"; static const char* kLabel2 = "Modified Img"; static const char* kLabel3 = "Cur Surface"; static const char* kLabel4 = "Full Crop"; static const char* kLabel5 = "Over-crop"; static const char* kLabel6 = "Upper-left"; static const char* kLabel7 = "No Crop"; static const char* kLabel8 = "Pre-Alloc Img"; static const char* kLabel9 = "New Alloc Img"; static const char* kLabel10 = "GPU"; SkPaint textPaint; textPaint.setAntiAlias(true); sk_tool_utils::set_portable_typeface(&textPaint); textPaint.setTextSize(8); canvas->drawText(kLabel1, strlen(kLabel1), 10, 60, textPaint); canvas->drawText(kLabel2, strlen(kLabel2), 10, 140, textPaint); canvas->drawText(kLabel3, strlen(kLabel3), 10, 220, textPaint); canvas->drawText(kLabel4, strlen(kLabel4), 10, 300, textPaint); canvas->drawText(kLabel5, strlen(kLabel5), 10, 380, textPaint); canvas->drawText(kLabel6, strlen(kLabel6), 10, 460, textPaint); canvas->drawText(kLabel7, strlen(kLabel7), 10, 540, textPaint); canvas->drawText(kLabel8, strlen(kLabel8), 80, 10, textPaint); canvas->drawText(kLabel9, strlen(kLabel9), 160, 10, textPaint); canvas->drawText(kLabel10, strlen(kLabel10), 265, 10, textPaint); canvas->translate(80, 20); // since we draw into this directly, we need to start fresh sk_bzero(fBuffer, fBufferSize); SkImageInfo info = SkImageInfo::MakeN32Premul(W, H); SkAutoTUnref<SkSurface> surf0(SkSurface::NewRasterDirect(info, fBuffer, RB)); SkAutoTUnref<SkSurface> surf1(SkSurface::NewRaster(info)); SkAutoTUnref<SkSurface> surf2; // gpu #if SK_SUPPORT_GPU surf2.reset(SkSurface::NewRenderTarget(canvas->getGrContext(), SkSurface::kNo_Budgeted, info)); #endif test_surface(canvas, surf0, true); canvas->translate(80, 0); test_surface(canvas, surf1, true); if (surf2) { canvas->translate(80, 0); test_surface(canvas, surf2, true); } } private: typedef skiagm::GM INHERITED; }; DEF_GM( return new ImageGM; ) class ImageResizeGM : public skiagm::GM { enum { W = 100, H = 100, }; public: ImageResizeGM() {} protected: SkString onShortName() override { return SkString("image-resize"); } SkISize onISize() override { return SkISize::Make(510, 480); } void drawIntoImage(SkCanvas* canvas) { SkPaint paint; paint.setAntiAlias(true); paint.setStyle(SkPaint::kStroke_Style); paint.setStrokeWidth(3); SkRandom rand; for (int i = 0; i < 60; ++i) { paint.setColor(rand.nextU()); SkScalar x = rand.nextUScalar1() * W; SkScalar y = rand.nextUScalar1() * H; SkScalar r = rand.nextUScalar1() * W / 2; canvas->drawCircle(x, y, r, paint); } } SkImage* makeImage(SkCanvas* canvas) { const SkImageInfo info = SkImageInfo::MakeN32Premul(W, H); SkAutoTUnref<SkSurface> surface(canvas->newSurface(info)); if (!surface) { surface.reset(SkSurface::NewRaster(info)); } this->drawIntoImage(surface->getCanvas()); return surface->newImageSnapshot(); } void drawResized(SkCanvas* canvas, SkImage* image, int newW, int newH, const SkIRect* subset, SkFilterQuality fq) { // canvas method SkPaint paint; paint.setFilterQuality(fq); SkRect dstR = SkRect::MakeWH(SkIntToScalar(newW), SkIntToScalar(newH)); SkRect srcR; if (subset) { srcR.set(*subset); } canvas->drawImageRect(image, subset ? &srcR : NULL, dstR, &paint); canvas->translate(newW + 20.0f, 0); // image method SkAutoTUnref<SkImage> image2(image->newImage(newW, newH, subset, fq)); canvas->drawImage(image2, 0, 0, NULL); canvas->translate(image2->width() + 20.0f, 0); } void drawImage(SkCanvas* canvas, SkImage* image, SkFilterQuality fq) { canvas->drawImage(image, 0, 0, NULL); canvas->translate(image->width() + 20.0f, 0); this->drawResized(canvas, image, image->width()*4/10, image->height()*4/10, NULL, fq); SkIRect subset = SkIRect::MakeLTRB(W/4, H/4, W/2, H/2); this->drawResized(canvas, image, W, H, &subset, fq); } void onDraw(SkCanvas* canvas) override { canvas->translate(10, 10); SkAutoTUnref<SkImage> image(this->makeImage(canvas)); const SkFilterQuality fq[] = { kNone_SkFilterQuality, kLow_SkFilterQuality, kMedium_SkFilterQuality, kHigh_SkFilterQuality, }; for (size_t i = 0; i < SK_ARRAY_COUNT(fq); ++i) { { SkAutoCanvasRestore acr(canvas, true); this->drawImage(canvas, image, fq[i]); } canvas->translate(0, image->height() + 20.0f); } } private: typedef skiagm::GM INHERITED; }; DEF_GM( return new ImageResizeGM; )