/* * 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 "SkSurface.h" #include "SkCanvas.h" #include "SkStream.h" #include "SkData.h" #if SK_SUPPORT_GPU #include "GrContext.h" #endif static SkData* fileToData(const char path[]) { SkFILEStream stream(path); if (!stream.isValid()) { return SkData::NewEmpty(); } size_t size = stream.getLength(); void* mem = sk_malloc_throw(size); stream.read(mem, size); return SkData::NewFromMalloc(mem, size); } 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(fileToData("/Users/mike/Downloads/skia.google.jpeg")); SkImage* image = SkImage::NewEncodedData(data); if (image) { SkAutoCanvasRestore acr(canvas, true); canvas->scale(size.width() * 1.0f / image->width(), size.height() * 1.0f / image->height()); image->draw(canvas, 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); imgR->draw(canvas, 0, 0, usePaint ? &paint : NULL); imgG->draw(canvas, 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); imgR->draw(canvas, &src1, dst1, usePaint ? &paint : NULL); imgG->draw(canvas, &src2, dst2, usePaint ? &paint : NULL); imgR->draw(canvas, &src3, dst3, usePaint ? &paint : NULL); imgG->draw(canvas, 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: virtual SkString onShortName() { return SkString("image-surface"); } virtual SkISize onISize() { return SkISize::Make(960, 1200); } virtual void onDraw(SkCanvas* canvas) { 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 = "Null Paint"; static const char* kLabel11 = "GPU"; SkPaint textPaint; textPaint.setAntiAlias(true); 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), 250, 10, textPaint); canvas->drawText(kLabel11, strlen(kLabel11), 320, 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)); #if SK_SUPPORT_GPU GrContext* ctx = canvas->getGrContext(); SkAutoTUnref<SkSurface> surf4(SkSurface::NewRenderTarget(ctx, info, 0)); #endif test_surface(canvas, surf0, true); canvas->translate(80, 0); test_surface(canvas, surf1, true); #if SK_SUPPORT_GPU if (NULL != ctx) { canvas->translate(80, 0); test_surface(canvas, surf4, true); } #endif } virtual uint32_t onGetFlags() const SK_OVERRIDE { return GM::kSkipPicture_Flag | GM::kSkipPipe_Flag; } private: typedef skiagm::GM INHERITED; }; ////////////////////////////////////////////////////////////////////////////// static skiagm::GM* MyFactory(void*) { return new ImageGM; } static skiagm::GMRegistry reg(MyFactory);