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 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 8 | #include "gm.h" |
reed | c3b3266 | 2014-06-17 08:38:31 -0700 | [diff] [blame] | 9 | #include "sk_tool_utils.h" |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 10 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 11 | static void make_bm(SkBitmap* bm) { |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 12 | const SkColor colors[4] = { |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 13 | SK_ColorRED, SK_ColorGREEN, |
| 14 | SK_ColorBLUE, SK_ColorWHITE |
| 15 | }; |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 16 | SkPMColor colorsPM[4]; |
| 17 | for (size_t i = 0; i < SK_ARRAY_COUNT(colors); ++i) { |
| 18 | colorsPM[i] = SkPreMultiplyColor(colors[i]); |
| 19 | } |
| 20 | SkColorTable* ctable = new SkColorTable(colorsPM, 4); |
| 21 | |
commit-bot@chromium.org | dac5225 | 2014-02-17 21:21:46 +0000 | [diff] [blame] | 22 | bm->allocPixels(SkImageInfo::Make(2, 2, kIndex_8_SkColorType, |
| 23 | kPremul_SkAlphaType), |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 24 | nullptr, ctable); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 25 | ctable->unref(); |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 26 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 27 | *bm->getAddr8(0, 0) = 0; |
| 28 | *bm->getAddr8(1, 0) = 1; |
| 29 | *bm->getAddr8(0, 1) = 2; |
| 30 | *bm->getAddr8(1, 1) = 3; |
| 31 | } |
| 32 | |
| 33 | static SkScalar draw_bm(SkCanvas* canvas, const SkBitmap& bm, |
| 34 | SkScalar x, SkScalar y, SkPaint* paint) { |
| 35 | canvas->drawBitmap(bm, x, y, paint); |
| 36 | return SkIntToScalar(bm.width()) * 5/4; |
| 37 | } |
| 38 | |
| 39 | static SkScalar draw_set(SkCanvas* c, const SkBitmap& bm, SkScalar x, |
| 40 | SkPaint* p) { |
| 41 | x += draw_bm(c, bm, x, 0, p); |
reed | 93a1215 | 2015-03-16 10:08:34 -0700 | [diff] [blame] | 42 | p->setFilterQuality(kLow_SkFilterQuality); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 43 | x += draw_bm(c, bm, x, 0, p); |
| 44 | p->setDither(true); |
| 45 | return x + draw_bm(c, bm, x, 0, p); |
| 46 | } |
| 47 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 48 | static SkScalar draw_row(SkCanvas* canvas, const SkBitmap& bm) { |
| 49 | SkAutoCanvasRestore acr(canvas, true); |
| 50 | |
| 51 | SkPaint paint; |
| 52 | SkScalar x = 0; |
| 53 | const int scale = 32; |
| 54 | |
| 55 | paint.setAntiAlias(true); |
caryclark | 1818acb | 2015-07-24 12:09:25 -0700 | [diff] [blame] | 56 | sk_tool_utils::set_portable_typeface(&paint); |
reed | c3b3266 | 2014-06-17 08:38:31 -0700 | [diff] [blame] | 57 | const char* name = sk_tool_utils::colortype_name(bm.colorType()); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 58 | canvas->drawText(name, strlen(name), x, SkIntToScalar(bm.height())*scale*5/8, |
| 59 | paint); |
| 60 | canvas->translate(SkIntToScalar(48), 0); |
| 61 | |
| 62 | canvas->scale(SkIntToScalar(scale), SkIntToScalar(scale)); |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 63 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 64 | x += draw_set(canvas, bm, 0, &paint); |
| 65 | paint.reset(); |
| 66 | paint.setAlpha(0x80); |
| 67 | draw_set(canvas, bm, x, &paint); |
| 68 | return x * scale / 3; |
| 69 | } |
| 70 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 71 | class FilterGM : public skiagm::GM { |
| 72 | void onOnceBeforeDraw() override { |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 73 | make_bm(&fBM8); |
commit-bot@chromium.org | 8a2ad3c | 2014-02-23 03:59:35 +0000 | [diff] [blame] | 74 | fBM8.copyTo(&fBM4444, kARGB_4444_SkColorType); |
| 75 | fBM8.copyTo(&fBM16, kRGB_565_SkColorType); |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 76 | fBM8.copyTo(&fBM32, kN32_SkColorType); |
reed@google.com | 26b73d3 | 2012-03-08 22:13:04 +0000 | [diff] [blame] | 77 | } |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 78 | |
reed@google.com | 26b73d3 | 2012-03-08 22:13:04 +0000 | [diff] [blame] | 79 | public: |
| 80 | SkBitmap fBM8, fBM4444, fBM16, fBM32; |
| 81 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 82 | FilterGM() { |
caryclark | 65cdba6 | 2015-06-15 06:51:08 -0700 | [diff] [blame] | 83 | this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD)); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 84 | } |
| 85 | |
| 86 | protected: |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 87 | SkString onShortName() override { |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 88 | return SkString("bitmapfilters"); |
| 89 | } |
| 90 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 91 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 92 | return SkISize::Make(540, 330); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 93 | } |
| 94 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 95 | void onDraw(SkCanvas* canvas) override { |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 96 | SkScalar x = SkIntToScalar(10); |
| 97 | SkScalar y = SkIntToScalar(10); |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 98 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 99 | canvas->translate(x, y); |
| 100 | y = draw_row(canvas, fBM8); |
| 101 | canvas->translate(0, y); |
| 102 | y = draw_row(canvas, fBM4444); |
| 103 | canvas->translate(0, y); |
| 104 | y = draw_row(canvas, fBM16); |
| 105 | canvas->translate(0, y); |
| 106 | draw_row(canvas, fBM32); |
| 107 | } |
bungeman@google.com | 2ed67e8 | 2011-05-18 18:54:23 +0000 | [diff] [blame] | 108 | |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 109 | private: |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 110 | typedef skiagm::GM INHERITED; |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 111 | }; |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 112 | DEF_GM( return new FilterGM; ) |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 113 | |
| 114 | ////////////////////////////////////////////////////////////////////////////// |
| 115 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 116 | class TestExtractAlphaGM : public skiagm::GM { |
| 117 | void onOnceBeforeDraw() override { |
| 118 | // Make a bitmap with per-pixels alpha (stroked circle) |
| 119 | fBitmap.allocN32Pixels(100, 100); |
| 120 | SkCanvas canvas(fBitmap); |
| 121 | canvas.clear(0); |
reed@android.com | 048522d | 2009-06-23 12:19:41 +0000 | [diff] [blame] | 122 | |
reed | 2ba21a0 | 2015-05-18 12:57:56 -0700 | [diff] [blame] | 123 | SkPaint paint; |
| 124 | paint.setAntiAlias(true); |
| 125 | paint.setColor(SK_ColorBLUE); |
| 126 | paint.setStyle(SkPaint::kStroke_Style); |
| 127 | paint.setStrokeWidth(20); |
| 128 | |
| 129 | canvas.drawCircle(50, 50, 39, paint); |
| 130 | canvas.flush(); |
| 131 | |
| 132 | fBitmap.extractAlpha(&fAlpha); |
| 133 | } |
| 134 | |
| 135 | public: |
| 136 | SkBitmap fBitmap, fAlpha; |
| 137 | |
| 138 | protected: |
| 139 | SkString onShortName() override { |
| 140 | return SkString("extractalpha"); |
| 141 | } |
| 142 | |
| 143 | SkISize onISize() override { |
| 144 | return SkISize::Make(540, 330); |
| 145 | } |
| 146 | |
| 147 | void onDraw(SkCanvas* canvas) override { |
| 148 | SkPaint paint; |
| 149 | paint.setAntiAlias(true); |
| 150 | paint.setFilterQuality(kLow_SkFilterQuality); |
| 151 | paint.setColor(SK_ColorRED); |
| 152 | |
| 153 | canvas->drawBitmap(fBitmap, 10, 10, &paint); // should stay blue (ignore paint's color) |
| 154 | canvas->drawBitmap(fAlpha, 120, 10, &paint); // should draw red |
| 155 | } |
| 156 | |
| 157 | private: |
| 158 | typedef skiagm::GM INHERITED; |
| 159 | }; |
| 160 | DEF_GM( return new TestExtractAlphaGM; ) |
| 161 | |