robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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.h" |
| 9 | #include "SkCanvas.h" |
| 10 | #include "SkRSXform.h" |
| 11 | #include "SkSurface.h" |
| 12 | |
| 13 | // Create a square atlas of: |
| 14 | // opaque white | opaque red |
| 15 | // ------------------------------------ |
| 16 | // opaque green | transparent black |
| 17 | // |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 18 | static sk_sp<SkImage> make_atlas(SkCanvas* caller, int atlasSize) { |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 19 | const int kBlockSize = atlasSize/2; |
| 20 | |
| 21 | SkImageInfo info = SkImageInfo::MakeN32Premul(atlasSize, atlasSize); |
reed | e8f3062 | 2016-03-23 18:59:25 -0700 | [diff] [blame] | 22 | auto surface(caller->makeSurface(info)); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 23 | if (nullptr == surface) { |
reed | e8f3062 | 2016-03-23 18:59:25 -0700 | [diff] [blame] | 24 | surface = SkSurface::MakeRaster(info); |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 25 | } |
| 26 | SkCanvas* canvas = surface->getCanvas(); |
| 27 | |
| 28 | SkPaint paint; |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 29 | paint.setBlendMode(SkBlendMode::kSrc); |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 30 | |
| 31 | paint.setColor(SK_ColorWHITE); |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 32 | SkRect r = SkRect::MakeXYWH(0, 0, |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 33 | SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize)); |
| 34 | canvas->drawRect(r, paint); |
| 35 | |
| 36 | paint.setColor(SK_ColorRED); |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 37 | r = SkRect::MakeXYWH(SkIntToScalar(kBlockSize), 0, |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 38 | SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize)); |
| 39 | canvas->drawRect(r, paint); |
| 40 | |
| 41 | paint.setColor(SK_ColorGREEN); |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 42 | r = SkRect::MakeXYWH(0, SkIntToScalar(kBlockSize), |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 43 | SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize)); |
| 44 | canvas->drawRect(r, paint); |
| 45 | |
| 46 | paint.setColor(SK_ColorTRANSPARENT); |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 47 | r = SkRect::MakeXYWH(SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize), |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 48 | SkIntToScalar(kBlockSize), SkIntToScalar(kBlockSize)); |
| 49 | canvas->drawRect(r, paint); |
| 50 | |
reed | 9ce9d67 | 2016-03-17 10:51:11 -0700 | [diff] [blame] | 51 | return surface->makeImageSnapshot(); |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | // This GM tests the drawAtlas API with colors, different xfer modes |
| 55 | // and transparency in the atlas image |
| 56 | class DrawAtlasColorsGM : public skiagm::GM { |
| 57 | public: |
| 58 | DrawAtlasColorsGM() { |
| 59 | this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC)); |
| 60 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 61 | |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 62 | protected: |
| 63 | SkString onShortName() override { |
| 64 | return SkString("draw-atlas-colors"); |
| 65 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 66 | |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 67 | SkISize onISize() override { |
| 68 | return SkISize::Make(kNumXferModes * (kAtlasSize + kPad) + kPad, |
| 69 | 2 * kNumColors * (kAtlasSize + kPad) + kTextPad + kPad); |
| 70 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 71 | |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 72 | void onDraw(SkCanvas* canvas) override { |
| 73 | const SkRect target = SkRect::MakeWH(SkIntToScalar(kAtlasSize), SkIntToScalar(kAtlasSize)); |
| 74 | |
brianosman | 95e8d0a | 2016-09-29 13:43:49 -0700 | [diff] [blame] | 75 | auto atlas = make_atlas(canvas, kAtlasSize); |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 76 | |
| 77 | const struct { |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 78 | SkBlendMode fMode; |
| 79 | const char* fLabel; |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 80 | } gModes[] = { |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 81 | { SkBlendMode::kClear, "Clear" }, |
| 82 | { SkBlendMode::kSrc, "Src" }, |
| 83 | { SkBlendMode::kDst, "Dst" }, |
| 84 | { SkBlendMode::kSrcOver, "SrcOver" }, |
| 85 | { SkBlendMode::kDstOver, "DstOver" }, |
| 86 | { SkBlendMode::kSrcIn, "SrcIn" }, |
| 87 | { SkBlendMode::kDstIn, "DstIn" }, |
| 88 | { SkBlendMode::kSrcOut, "SrcOut" }, |
| 89 | { SkBlendMode::kDstOut, "DstOut" }, |
| 90 | { SkBlendMode::kSrcATop, "SrcATop" }, |
| 91 | { SkBlendMode::kDstATop, "DstATop" }, |
| 92 | { SkBlendMode::kXor, "Xor" }, |
| 93 | { SkBlendMode::kPlus, "Plus" }, |
| 94 | { SkBlendMode::kModulate, "Mod" }, |
| 95 | { SkBlendMode::kScreen, "Screen" }, |
| 96 | { SkBlendMode::kOverlay, "Overlay" }, |
| 97 | { SkBlendMode::kDarken, "Darken" }, |
| 98 | { SkBlendMode::kLighten, "Lighten" }, |
| 99 | { SkBlendMode::kColorDodge, "Dodge" }, |
| 100 | { SkBlendMode::kColorBurn, "Burn" }, |
| 101 | { SkBlendMode::kHardLight, "Hard" }, |
| 102 | { SkBlendMode::kSoftLight, "Soft" }, |
| 103 | { SkBlendMode::kDifference, "Diff" }, |
| 104 | { SkBlendMode::kExclusion, "Exclusion" }, |
| 105 | { SkBlendMode::kMultiply, "Multiply" }, |
| 106 | { SkBlendMode::kHue, "Hue" }, |
| 107 | { SkBlendMode::kSaturation, "Sat" }, |
| 108 | { SkBlendMode::kColor, "Color" }, |
| 109 | { SkBlendMode::kLuminosity, "Luminosity"}, |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 110 | }; |
| 111 | |
| 112 | SkColor gColors[] = { |
| 113 | SK_ColorWHITE, |
| 114 | SK_ColorRED, |
| 115 | 0x88888888, // transparent grey |
| 116 | 0x88000088 // transparent blue |
| 117 | }; |
| 118 | |
| 119 | const int numModes = SK_ARRAY_COUNT(gModes); |
| 120 | SkASSERT(numModes == kNumXferModes); |
| 121 | const int numColors = SK_ARRAY_COUNT(gColors); |
| 122 | SkASSERT(numColors == kNumColors); |
| 123 | SkRSXform xforms[numColors]; |
| 124 | SkRect rects[numColors]; |
| 125 | SkColor quadColors[numColors]; |
| 126 | |
| 127 | SkPaint paint; |
| 128 | paint.setAntiAlias(true); |
| 129 | |
| 130 | for (int i = 0; i < numColors; ++i) { |
| 131 | xforms[i].set(1.0f, 0.0f, SkIntToScalar(kPad), i*(target.width()+kPad)); |
| 132 | rects[i] = target; |
| 133 | quadColors[i] = gColors[i]; |
| 134 | } |
| 135 | |
| 136 | SkPaint textP; |
| 137 | textP.setTextSize(SkIntToScalar(kTextPad)); |
| 138 | textP.setAntiAlias(true); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 139 | sk_tool_utils::set_portable_typeface(&textP, nullptr); |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 140 | |
| 141 | for (int i = 0; i < numModes; ++i) { |
| 142 | canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel), |
| 143 | i*(target.width()+kPad)+kPad, SkIntToScalar(kTextPad), |
| 144 | textP); |
| 145 | } |
| 146 | |
| 147 | for (int i = 0; i < numModes; ++i) { |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 148 | canvas->save(); |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 149 | canvas->translate(SkIntToScalar(i*(target.height()+kPad)), |
| 150 | SkIntToScalar(kTextPad+kPad)); |
| 151 | // w/o a paint |
brianosman | 95e8d0a | 2016-09-29 13:43:49 -0700 | [diff] [blame] | 152 | canvas->drawAtlas(atlas.get(), xforms, rects, quadColors, numColors, |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 153 | gModes[i].fMode, nullptr, nullptr); |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 154 | canvas->translate(0.0f, numColors*(target.height()+kPad)); |
| 155 | // w a paint |
brianosman | 95e8d0a | 2016-09-29 13:43:49 -0700 | [diff] [blame] | 156 | canvas->drawAtlas(atlas.get(), xforms, rects, quadColors, numColors, |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 157 | gModes[i].fMode, nullptr, &paint); |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 158 | canvas->restore(); |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 159 | } |
| 160 | } |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 161 | |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 162 | private: |
mtklein | dbfd7ab | 2016-09-01 11:24:54 -0700 | [diff] [blame] | 163 | static constexpr int kNumXferModes = 29; |
| 164 | static constexpr int kNumColors = 4; |
| 165 | static constexpr int kAtlasSize = 30; |
| 166 | static constexpr int kPad = 2; |
| 167 | static constexpr int kTextPad = 8; |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 168 | |
robertphillips | 29ccdf8 | 2015-07-24 10:20:45 -0700 | [diff] [blame] | 169 | typedef GM INHERITED; |
| 170 | }; |
| 171 | DEF_GM( return new DrawAtlasColorsGM; ) |