epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 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 | */ |
reed | c3b3266 | 2014-06-17 08:38:31 -0700 | [diff] [blame] | 7 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
Ben Wagner | 6a34f3a | 2019-05-01 10:59:30 -0400 | [diff] [blame] | 9 | #include "include/core/SkBitmap.h" |
| 10 | #include "include/core/SkCanvas.h" |
| 11 | #include "include/core/SkColor.h" |
| 12 | #include "include/core/SkFilterQuality.h" |
| 13 | #include "include/core/SkFont.h" |
| 14 | #include "include/core/SkImageInfo.h" |
| 15 | #include "include/core/SkPaint.h" |
| 16 | #include "include/core/SkScalar.h" |
| 17 | #include "include/core/SkSize.h" |
| 18 | #include "include/core/SkString.h" |
| 19 | #include "include/core/SkTypeface.h" |
| 20 | #include "include/core/SkTypes.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 21 | #include "tools/ToolUtils.h" |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 22 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 23 | static void make_bm(SkBitmap* bm) { |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 24 | const SkColor colors[4] = { |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 25 | SK_ColorRED, SK_ColorGREEN, |
| 26 | SK_ColorBLUE, SK_ColorWHITE |
| 27 | }; |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 28 | SkPMColor colorsPM[4]; |
| 29 | for (size_t i = 0; i < SK_ARRAY_COUNT(colors); ++i) { |
| 30 | colorsPM[i] = SkPreMultiplyColor(colors[i]); |
| 31 | } |
Mike Reed | 304a07c | 2017-07-12 15:10:28 -0400 | [diff] [blame] | 32 | bm->allocN32Pixels(2, 2, true); |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 33 | |
Mike Reed | 304a07c | 2017-07-12 15:10:28 -0400 | [diff] [blame] | 34 | *bm->getAddr32(0, 0) = colorsPM[0]; |
| 35 | *bm->getAddr32(1, 0) = colorsPM[1]; |
| 36 | *bm->getAddr32(0, 1) = colorsPM[2]; |
| 37 | *bm->getAddr32(1, 1) = colorsPM[3]; |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 38 | } |
| 39 | |
| 40 | static SkScalar draw_bm(SkCanvas* canvas, const SkBitmap& bm, |
| 41 | SkScalar x, SkScalar y, SkPaint* paint) { |
| 42 | canvas->drawBitmap(bm, x, y, paint); |
| 43 | return SkIntToScalar(bm.width()) * 5/4; |
| 44 | } |
| 45 | |
| 46 | static SkScalar draw_set(SkCanvas* c, const SkBitmap& bm, SkScalar x, |
| 47 | SkPaint* p) { |
| 48 | x += draw_bm(c, bm, x, 0, p); |
reed | 93a1215 | 2015-03-16 10:08:34 -0700 | [diff] [blame] | 49 | p->setFilterQuality(kLow_SkFilterQuality); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 50 | x += draw_bm(c, bm, x, 0, p); |
| 51 | p->setDither(true); |
| 52 | return x + draw_bm(c, bm, x, 0, p); |
| 53 | } |
| 54 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 55 | static SkScalar draw_row(SkCanvas* canvas, const SkBitmap& bm) { |
| 56 | SkAutoCanvasRestore acr(canvas, true); |
| 57 | |
| 58 | SkPaint paint; |
Mike Reed | 4de2f1f | 2019-01-05 16:35:13 -0500 | [diff] [blame] | 59 | paint.setAntiAlias(true); |
| 60 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 61 | SkScalar x = 0; |
| 62 | const int scale = 32; |
| 63 | |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 64 | SkFont font(ToolUtils::create_portable_typeface()); |
| 65 | const char* name = ToolUtils::colortype_name(bm.colorType()); |
Cary Clark | 2a475ea | 2017-04-28 15:35:12 -0400 | [diff] [blame] | 66 | canvas->drawString(name, x, SkIntToScalar(bm.height())*scale*5/8, |
Mike Reed | 4de2f1f | 2019-01-05 16:35:13 -0500 | [diff] [blame] | 67 | font, paint); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 68 | canvas->translate(SkIntToScalar(48), 0); |
| 69 | |
| 70 | canvas->scale(SkIntToScalar(scale), SkIntToScalar(scale)); |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 71 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 72 | x += draw_set(canvas, bm, 0, &paint); |
| 73 | paint.reset(); |
Mike Reed | 9407e24 | 2019-02-15 16:13:57 -0500 | [diff] [blame] | 74 | paint.setAlphaf(0.5f); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 75 | draw_set(canvas, bm, x, &paint); |
| 76 | return x * scale / 3; |
| 77 | } |
| 78 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 79 | class FilterGM : public skiagm::GM { |
| 80 | void onOnceBeforeDraw() override { |
Mike Reed | 304a07c | 2017-07-12 15:10:28 -0400 | [diff] [blame] | 81 | make_bm(&fBM32); |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 82 | ToolUtils::copy_to(&fBM4444, kARGB_4444_SkColorType, fBM32); |
| 83 | ToolUtils::copy_to(&fBM16, kRGB_565_SkColorType, fBM32); |
reed@google.com | 26b73d3 | 2012-03-08 22:13:04 +0000 | [diff] [blame] | 84 | } |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 85 | |
reed@google.com | 26b73d3 | 2012-03-08 22:13:04 +0000 | [diff] [blame] | 86 | public: |
Mike Reed | 304a07c | 2017-07-12 15:10:28 -0400 | [diff] [blame] | 87 | SkBitmap fBM4444, fBM16, fBM32; |
reed@google.com | 26b73d3 | 2012-03-08 22:13:04 +0000 | [diff] [blame] | 88 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 89 | FilterGM() { |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 90 | this->setBGColor(0xFFDDDDDD); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 91 | } |
| 92 | |
| 93 | protected: |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 94 | SkString onShortName() override { |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 95 | return SkString("bitmapfilters"); |
| 96 | } |
| 97 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 98 | SkISize onISize() override { |
Mike Reed | 304a07c | 2017-07-12 15:10:28 -0400 | [diff] [blame] | 99 | return SkISize::Make(540, 250); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 100 | } |
| 101 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 102 | void onDraw(SkCanvas* canvas) override { |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 103 | SkScalar x = SkIntToScalar(10); |
| 104 | SkScalar y = SkIntToScalar(10); |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 105 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 106 | canvas->translate(x, y); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 107 | y = draw_row(canvas, fBM4444); |
| 108 | canvas->translate(0, y); |
| 109 | y = draw_row(canvas, fBM16); |
| 110 | canvas->translate(0, y); |
| 111 | draw_row(canvas, fBM32); |
| 112 | } |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 113 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 114 | private: |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 115 | typedef skiagm::GM INHERITED; |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 116 | }; |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 117 | DEF_GM( return new FilterGM; ) |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 118 | |
| 119 | ////////////////////////////////////////////////////////////////////////////// |
| 120 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 121 | class TestExtractAlphaGM : public skiagm::GM { |
| 122 | void onOnceBeforeDraw() override { |
| 123 | // Make a bitmap with per-pixels alpha (stroked circle) |
| 124 | fBitmap.allocN32Pixels(100, 100); |
| 125 | SkCanvas canvas(fBitmap); |
| 126 | canvas.clear(0); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 127 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 128 | SkPaint paint; |
| 129 | paint.setAntiAlias(true); |
| 130 | paint.setColor(SK_ColorBLUE); |
| 131 | paint.setStyle(SkPaint::kStroke_Style); |
| 132 | paint.setStrokeWidth(20); |
| 133 | |
| 134 | canvas.drawCircle(50, 50, 39, paint); |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 135 | |
| 136 | fBitmap.extractAlpha(&fAlpha); |
| 137 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 138 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 139 | public: |
| 140 | SkBitmap fBitmap, fAlpha; |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 141 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 142 | protected: |
| 143 | SkString onShortName() override { |
| 144 | return SkString("extractalpha"); |
| 145 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 146 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 147 | SkISize onISize() override { |
| 148 | return SkISize::Make(540, 330); |
| 149 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 150 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 151 | void onDraw(SkCanvas* canvas) override { |
| 152 | SkPaint paint; |
| 153 | paint.setAntiAlias(true); |
| 154 | paint.setFilterQuality(kLow_SkFilterQuality); |
| 155 | paint.setColor(SK_ColorRED); |
| 156 | |
| 157 | canvas->drawBitmap(fBitmap, 10, 10, &paint); // should stay blue (ignore paint's color) |
| 158 | canvas->drawBitmap(fAlpha, 120, 10, &paint); // should draw red |
| 159 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 160 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 161 | private: |
| 162 | typedef skiagm::GM INHERITED; |
| 163 | }; |
| 164 | DEF_GM( return new TestExtractAlphaGM; ) |