bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +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 | */ |
| 7 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
Ben Wagner | d1701ba | 2019-04-30 13:44:26 -0400 | [diff] [blame] | 9 | #include "include/core/SkBitmap.h" |
| 10 | #include "include/core/SkBlendMode.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 11 | #include "include/core/SkCanvas.h" |
Ben Wagner | d1701ba | 2019-04-30 13:44:26 -0400 | [diff] [blame] | 12 | #include "include/core/SkColor.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 13 | #include "include/core/SkColorPriv.h" |
Ben Wagner | d1701ba | 2019-04-30 13:44:26 -0400 | [diff] [blame] | 14 | #include "include/core/SkMatrix.h" |
| 15 | #include "include/core/SkPaint.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 16 | #include "include/core/SkPath.h" |
Mike Reed | cfb130c | 2020-08-03 11:02:20 -0400 | [diff] [blame] | 17 | #include "include/core/SkPathBuilder.h" |
Ben Wagner | d1701ba | 2019-04-30 13:44:26 -0400 | [diff] [blame] | 18 | #include "include/core/SkPoint.h" |
| 19 | #include "include/core/SkRect.h" |
| 20 | #include "include/core/SkRefCnt.h" |
| 21 | #include "include/core/SkScalar.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 22 | #include "include/core/SkShader.h" |
Ben Wagner | d1701ba | 2019-04-30 13:44:26 -0400 | [diff] [blame] | 23 | #include "include/core/SkTileMode.h" |
| 24 | #include "include/core/SkTypes.h" |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 25 | |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 26 | static void test4(SkCanvas* canvas) { |
| 27 | SkPaint paint; |
| 28 | paint.setAntiAlias(true); |
| 29 | SkPoint pts[] = { |
| 30 | {10, 160}, {610, 160}, |
| 31 | {610, 160}, {10, 160}, |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 32 | |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 33 | {610, 160}, {610, 160}, |
| 34 | {610, 199}, {610, 199}, |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 35 | |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 36 | {10, 198}, {610, 198}, |
| 37 | {610, 199}, {10, 199}, |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 38 | |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 39 | {10, 160}, {10, 160}, |
| 40 | {10, 199}, {10, 199} |
| 41 | }; |
| 42 | char verbs[] = { |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 43 | 0, 1, 1, 1, 4, |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 44 | 0, 1, 1, 1, 4, |
| 45 | 0, 1, 1, 1, 4, |
| 46 | 0, 1, 1, 1, 4 |
| 47 | }; |
Mike Reed | cfb130c | 2020-08-03 11:02:20 -0400 | [diff] [blame] | 48 | SkPathBuilder path; |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 49 | SkPoint* ptPtr = pts; |
bsalomon@google.com | 31648eb | 2011-11-23 15:01:08 +0000 | [diff] [blame] | 50 | for (size_t i = 0; i < sizeof(verbs); ++i) { |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 51 | switch ((SkPath::Verb) verbs[i]) { |
| 52 | case SkPath::kMove_Verb: |
| 53 | path.moveTo(ptPtr->fX, ptPtr->fY); |
| 54 | ++ptPtr; |
| 55 | break; |
| 56 | case SkPath::kLine_Verb: |
| 57 | path.lineTo(ptPtr->fX, ptPtr->fY); |
| 58 | ++ptPtr; |
| 59 | break; |
| 60 | case SkPath::kClose_Verb: |
| 61 | path.close(); |
| 62 | break; |
bsalomon@google.com | 31648eb | 2011-11-23 15:01:08 +0000 | [diff] [blame] | 63 | default: |
| 64 | SkASSERT(false); |
| 65 | break; |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 66 | } |
| 67 | } |
| 68 | SkRect clip = {0, 130, 772, 531}; |
| 69 | canvas->clipRect(clip); |
Mike Reed | cfb130c | 2020-08-03 11:02:20 -0400 | [diff] [blame] | 70 | canvas->drawPath(path.detach(), paint); |
reed@google.com | 7616615 | 2011-11-14 13:14:58 +0000 | [diff] [blame] | 71 | } |
| 72 | |
Brian Osman | d1e67e7 | 2017-03-15 12:19:37 -0400 | [diff] [blame] | 73 | constexpr SkBlendMode gModes[] = { |
| 74 | SkBlendMode::kClear, |
| 75 | SkBlendMode::kSrc, |
| 76 | SkBlendMode::kDst, |
| 77 | SkBlendMode::kSrcOver, |
| 78 | SkBlendMode::kDstOver, |
| 79 | SkBlendMode::kSrcIn, |
| 80 | SkBlendMode::kDstIn, |
| 81 | SkBlendMode::kSrcOut, |
| 82 | SkBlendMode::kDstOut, |
| 83 | SkBlendMode::kSrcATop, |
| 84 | SkBlendMode::kDstATop, |
| 85 | SkBlendMode::kXor, |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 86 | }; |
| 87 | |
| 88 | const int gWidth = 64; |
| 89 | const int gHeight = 64; |
| 90 | const SkScalar W = SkIntToScalar(gWidth); |
| 91 | const SkScalar H = SkIntToScalar(gHeight); |
| 92 | |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 93 | static SkScalar drawCell(SkCanvas* canvas, SkBlendMode mode, SkAlpha a0, SkAlpha a1) { |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 94 | |
| 95 | SkPaint paint; |
| 96 | paint.setAntiAlias(true); |
| 97 | |
| 98 | SkRect r = SkRect::MakeWH(W, H); |
| 99 | r.inset(W/10, H/10); |
| 100 | |
| 101 | paint.setColor(SK_ColorBLUE); |
| 102 | paint.setAlpha(a0); |
| 103 | canvas->drawOval(r, paint); |
| 104 | |
| 105 | paint.setColor(SK_ColorRED); |
| 106 | paint.setAlpha(a1); |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 107 | paint.setBlendMode(mode); |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 108 | |
| 109 | SkScalar offset = SK_Scalar1 / 3; |
| 110 | SkRect rect = SkRect::MakeXYWH(W / 4 + offset, |
| 111 | H / 4 + offset, |
| 112 | W / 2, H / 2); |
| 113 | canvas->drawRect(rect, paint); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 114 | |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 115 | return H; |
| 116 | } |
| 117 | |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 118 | static sk_sp<SkShader> make_bg_shader() { |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 119 | SkBitmap bm; |
reed@google.com | eb9a46c | 2014-01-25 16:46:20 +0000 | [diff] [blame] | 120 | bm.allocN32Pixels(2, 2); |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 121 | *bm.getAddr32(0, 0) = *bm.getAddr32(1, 1) = 0xFFFFFFFF; |
caryclark | 1259601 | 2015-07-29 05:27:47 -0700 | [diff] [blame] | 122 | *bm.getAddr32(1, 0) = *bm.getAddr32(0, 1) = SkPackARGB32(0xFF, 0xCE, |
| 123 | 0xCF, 0xCE); |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 124 | |
Mike Reed | 82abece | 2020-12-12 09:51:11 -0500 | [diff] [blame] | 125 | return bm.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat, SkSamplingOptions(), |
| 126 | SkMatrix::Scale(6, 6)); |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 127 | } |
| 128 | |
Hal Canary | 607c44f | 2019-01-23 10:40:02 -0500 | [diff] [blame] | 129 | DEF_SIMPLE_GM(aarectmodes, canvas, 640, 480) { |
| 130 | SkPaint bgPaint; |
| 131 | bgPaint.setShader(make_bg_shader()); |
caryclark@google.com | 1313086 | 2012-06-06 12:10:45 +0000 | [diff] [blame] | 132 | if (false) { // avoid bit rot, suppress warning |
| 133 | test4(canvas); |
| 134 | } |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 135 | const SkRect bounds = SkRect::MakeWH(W, H); |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 136 | constexpr SkAlpha gAlphaValue[] = { 0xFF, 0x88, 0x88 }; |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 137 | |
| 138 | canvas->translate(SkIntToScalar(4), SkIntToScalar(4)); |
| 139 | |
| 140 | for (int alpha = 0; alpha < 4; ++alpha) { |
| 141 | canvas->save(); |
| 142 | canvas->save(); |
| 143 | for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); ++i) { |
| 144 | if (6 == i) { |
| 145 | canvas->restore(); |
| 146 | canvas->translate(W * 5, 0); |
| 147 | canvas->save(); |
| 148 | } |
Hal Canary | 607c44f | 2019-01-23 10:40:02 -0500 | [diff] [blame] | 149 | canvas->drawRect(bounds, bgPaint); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 150 | canvas->saveLayer(&bounds, nullptr); |
Brian Osman | d1e67e7 | 2017-03-15 12:19:37 -0400 | [diff] [blame] | 151 | SkScalar dy = drawCell(canvas, gModes[i], |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 152 | gAlphaValue[alpha & 1], |
| 153 | gAlphaValue[alpha & 2]); |
| 154 | canvas->restore(); |
| 155 | |
| 156 | canvas->translate(0, dy * 5 / 4); |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 157 | } |
| 158 | canvas->restore(); |
| 159 | canvas->restore(); |
| 160 | canvas->translate(W * 5 / 4, 0); |
| 161 | } |
bsalomon@google.com | a310826 | 2011-10-10 14:08:47 +0000 | [diff] [blame] | 162 | } |