1 /* 2 * Copyright 2017 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "gm/gm.h" 9 #include "include/core/SkBlurTypes.h" 10 #include "include/core/SkCanvas.h" 11 #include "include/core/SkColor.h" 12 #include "include/core/SkFont.h" 13 #include "include/core/SkImage.h" 14 #include "include/core/SkImageFilter.h" 15 #include "include/core/SkMaskFilter.h" 16 #include "include/core/SkPaint.h" 17 #include "include/core/SkRect.h" 18 #include "include/core/SkRefCnt.h" 19 #include "include/core/SkString.h" 20 #include "include/core/SkTypeface.h" 21 #include "include/effects/SkImageFilters.h" 22 #include "tools/Resources.h" 23 #include "tools/ToolUtils.h" 24 25 #include <stdio.h> 26 27 DEF_SIMPLE_GM(blurimagevmask, canvas, 700, 1200) { 28 SkPaint paint; 29 paint.setAntiAlias(true); 30 paint.setColor(SK_ColorBLACK); 31 32 SkFont font(ToolUtils::create_portable_typeface(), 25); 33 34 const double sigmas[] = {3.0, 8.0, 16.0, 24.0, 32.0}; 35 36 canvas->drawString("mask blur", 285, 50, font, paint); 37 canvas->drawString("image blur", 285 + 250, 50, font, paint); 38 39 40 SkRect r = {35, 100, 135, 200}; 41 for (auto sigma:sigmas) { 42 43 canvas->drawRect(r, paint); 44 45 char out[100]; 46 sprintf(out, "Sigma: %g", sigma); 47 canvas->drawString(out, r.left(), r.bottom() + 35, font, paint); 48 49 r.offset(250, 0); 50 51 paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, sigma)); 52 canvas->drawRect(r, paint); 53 paint.setMaskFilter(nullptr); 54 55 SkPaint imageBlurPaint; 56 r.offset(250, 0); 57 imageBlurPaint.setImageFilter(SkImageFilters::Blur(sigma, sigma, nullptr)); 58 canvas->saveLayer(nullptr, &imageBlurPaint); 59 60 canvas->drawRect(r, paint); 61 canvas->restore(); 62 r.offset(-500, 200); 63 } 64 65 } 66 67 DEF_SIMPLE_GM_CAN_FAIL(blur_image, canvas, errorMsg, 500, 500) { 68 auto image = GetResourceAsImage("images/mandrill_128.png"); 69 if (!image) { 70 *errorMsg = "Could not load mandrill_128.png. Did you forget to set the resourcePath?"; 71 return skiagm::DrawResult::kFail; 72 } 73 74 SkPaint paint; 75 paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 4)); 76 77 // both of these should draw with the blur, but (formerally) we had a bug where the unscaled 78 // version (taking the spriteblitter code path) ignore the maskfilter. 79 80 canvas->drawImage(image, 10, 10, &paint); 81 canvas->scale(1.01f, 1.01f); 82 canvas->drawImage(image, 10 + image->width() + 10.f, 10, &paint); 83 return skiagm::DrawResult::kOk; 84 } 85
