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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "gm.h" | 8 #include "gm.h" |
| 9 #include "SkBlurImageFilter.h" |
| 10 #include "SkColorMatrixFilter.h" |
| 11 #include "SkImage.h" |
9 #include "SkImageFilter.h" | 12 #include "SkImageFilter.h" |
10 #include "SkColorMatrixFilter.h" | 13 #include "SkSurface.h" |
11 | 14 |
12 /** | 15 /** |
13 * Test drawing a primitive w/ an imagefilter (in this case, just matrix w/ ide
ntity) to see | 16 * Test drawing a primitive w/ an imagefilter (in this case, just matrix w/ ide
ntity) to see |
14 * that we apply the xfermode *after* the image has been created and filtered,
and not during | 17 * that we apply the xfermode *after* the image has been created and filtered,
and not during |
15 * the creation step (i.e. before it is filtered). | 18 * the creation step (i.e. before it is filtered). |
16 * | 19 * |
17 * see https://bug.skia.org/3741 | 20 * see https://bug.skia.org/3741 |
18 */ | 21 */ |
19 static void do_draw(SkCanvas* canvas, SkXfermode::Mode mode, SkImageFilter* imf)
{ | 22 static void do_draw(SkCanvas* canvas, SkXfermode::Mode mode, SkImageFilter* imf)
{ |
20 SkAutoCanvasRestore acr(canvas, true); | 23 SkAutoCanvasRestore acr(canvas, true); |
(...skipping 34 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
55 for (size_t i = 0; i < SK_ARRAY_COUNT(modes); ++i) { | 58 for (size_t i = 0; i < SK_ARRAY_COUNT(modes); ++i) { |
56 canvas->save(); | 59 canvas->save(); |
57 do_draw(canvas, modes[i], nullptr); | 60 do_draw(canvas, modes[i], nullptr); |
58 canvas->translate(240, 0); | 61 canvas->translate(240, 0); |
59 do_draw(canvas, modes[i], imf); | 62 do_draw(canvas, modes[i], imf); |
60 canvas->restore(); | 63 canvas->restore(); |
61 | 64 |
62 canvas->translate(0, 240); | 65 canvas->translate(0, 240); |
63 } | 66 } |
64 } | 67 } |
| 68 |
| 69 static SkImage* make_image(SkCanvas* canvas) { |
| 70 const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100); |
| 71 SkAutoTUnref<SkSurface> surface(canvas->newSurface(info)); |
| 72 if (!surface) { |
| 73 surface.reset(SkSurface::NewRaster(info)); |
| 74 } |
| 75 surface->getCanvas()->drawRect(SkRect::MakeXYWH(25, 25, 50, 50), SkPaint()); |
| 76 return surface->newImageSnapshot(); |
| 77 } |
| 78 |
| 79 // Compare blurs when we're tightly clipped (fast) and not as tightly (slower) |
| 80 // |
| 81 // Expect the two to draw the same (modulo the extra border of pixels when the c
lip is larger) |
| 82 // |
| 83 DEF_SIMPLE_GM(fast_slow_blurimagefilter, canvas, 620, 260) { |
| 84 SkAutoTUnref<SkImage> image(make_image(canvas)); |
| 85 const SkRect r = SkRect::MakeIWH(image->width(), image->height()); |
| 86 |
| 87 canvas->translate(10, 10); |
| 88 for (SkScalar sigma = 8; sigma <= 128; sigma *= 2) { |
| 89 SkPaint paint; |
| 90 paint.setImageFilter(SkBlurImageFilter::Create(sigma, sigma))->unref(); |
| 91 |
| 92 canvas->save(); |
| 93 // we outset the clip by 1, to fall out of the fast-case in drawImage |
| 94 // i.e. the clip is larger than the image |
| 95 for (SkScalar outset = 0; outset <= 1; ++outset) { |
| 96 canvas->save(); |
| 97 canvas->clipRect(r.makeOutset(outset, outset)); |
| 98 canvas->drawImage(image, 0, 0, &paint); |
| 99 canvas->restore(); |
| 100 canvas->translate(0, r.height() + 20); |
| 101 } |
| 102 canvas->restore(); |
| 103 canvas->translate(r.width() + 20, 0); |
| 104 } |
| 105 } |
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