bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2014 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
| 9 | #include "gm.h" |
| 10 | #if SK_SUPPORT_GPU |
| 11 | #include "GrFragmentProcessor.h" |
| 12 | #include "GrCoordTransform.h" |
bsalomon | 87ba62e | 2015-09-22 06:41:59 -0700 | [diff] [blame] | 13 | #include "effects/GrXfermodeFragmentProcessor.h" |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 14 | #include "gl/GrGLProcessor.h" |
| 15 | #include "gl/builders/GrGLProgramBuilder.h" |
| 16 | #include "Resources.h" |
mtklein | 36a364a | 2015-01-07 08:02:28 -0800 | [diff] [blame] | 17 | #include "SkReadBuffer.h" |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 18 | #include "SkShader.h" |
| 19 | #include "SkStream.h" |
| 20 | #include "SkTypeface.h" |
mtklein | 36a364a | 2015-01-07 08:02:28 -0800 | [diff] [blame] | 21 | #include "SkWriteBuffer.h" |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 22 | |
| 23 | namespace skiagm { |
| 24 | |
| 25 | /////////////////////////////////////////////////////////////////////////////// |
| 26 | |
| 27 | class DCShader : public SkShader { |
| 28 | public: |
| 29 | DCShader(const SkMatrix& matrix) : fDeviceMatrix(matrix) {} |
| 30 | |
mtklein | 36a364a | 2015-01-07 08:02:28 -0800 | [diff] [blame] | 31 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(DCShader); |
| 32 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 33 | void flatten(SkWriteBuffer& buf) const override { |
mtklein | 36a364a | 2015-01-07 08:02:28 -0800 | [diff] [blame] | 34 | buf.writeMatrix(fDeviceMatrix); |
| 35 | } |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 36 | |
bsalomon | c21b09e | 2015-08-28 18:46:56 -0700 | [diff] [blame] | 37 | const GrFragmentProcessor* asFragmentProcessor(GrContext*, |
| 38 | const SkMatrix& viewM, |
| 39 | const SkMatrix* localMatrix, |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 40 | SkFilterQuality) const override; |
robertphillips | 42dbfa8 | 2015-01-26 06:08:52 -0800 | [diff] [blame] | 41 | |
| 42 | #ifndef SK_IGNORE_TO_STRING |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 43 | void toString(SkString* str) const override { |
robertphillips | 42dbfa8 | 2015-01-26 06:08:52 -0800 | [diff] [blame] | 44 | str->appendf("DCShader: ()"); |
| 45 | } |
| 46 | #endif |
| 47 | |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 48 | private: |
| 49 | const SkMatrix fDeviceMatrix; |
| 50 | }; |
| 51 | |
mtklein | 36a364a | 2015-01-07 08:02:28 -0800 | [diff] [blame] | 52 | SkFlattenable* DCShader::CreateProc(SkReadBuffer& buf) { |
| 53 | SkMatrix matrix; |
| 54 | buf.readMatrix(&matrix); |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 55 | return new DCShader(matrix); |
mtklein | 36a364a | 2015-01-07 08:02:28 -0800 | [diff] [blame] | 56 | } |
| 57 | |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 58 | class DCFP : public GrFragmentProcessor { |
| 59 | public: |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 60 | DCFP(const SkMatrix& m) : fDeviceTransform(kDevice_GrCoordSet, m) { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 61 | this->addCoordTransform(&fDeviceTransform); |
| 62 | this->initClassID<DCFP>(); |
| 63 | } |
| 64 | |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 65 | GrGLFragmentProcessor* onCreateGLInstance() const override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 66 | class DCGLFP : public GrGLFragmentProcessor { |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 67 | void emitCode(EmitArgs& args) override { |
| 68 | GrGLFragmentBuilder* fpb = args.fBuilder->getFragmentShaderBuilder(); |
| 69 | fpb->codeAppendf("vec2 c = %s;", fpb->ensureFSCoords2D(args.fCoords, 0).c_str()); |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 70 | fpb->codeAppend("vec2 r = mod(c, vec2(20.0));"); |
| 71 | fpb->codeAppend("vec4 color = vec4(0.5*sin(c.x / 15.0) + 0.5," |
| 72 | "0.5*cos((c.x + c.y) / 15.0) + 0.5," |
| 73 | "(r.x + r.y) / 20.0," |
| 74 | "distance(r, vec2(15.0)) / 20.0 + 0.2);"); |
| 75 | fpb->codeAppendf("color.rgb *= color.a;" |
| 76 | "%s = color * %s;", |
wangyix | 7c157a9 | 2015-07-22 15:08:53 -0700 | [diff] [blame] | 77 | args.fOutputColor, GrGLSLExpr4(args.fInputColor).c_str()); |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 78 | } |
wangyix | b1daa86 | 2015-08-18 11:29:31 -0700 | [diff] [blame] | 79 | void onSetData(const GrGLProgramDataManager&, const GrProcessor&) override {} |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 80 | }; |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 81 | return new DCGLFP; |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 82 | } |
| 83 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 84 | const char* name() const override { return "DCFP"; } |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 85 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 86 | void onComputeInvariantOutput(GrInvariantOutput* inout) const override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 87 | inout->mulByUnknownFourComponents(); |
| 88 | } |
| 89 | |
| 90 | private: |
wangyix | 4b3050b | 2015-08-04 07:59:37 -0700 | [diff] [blame] | 91 | void onGetGLProcessorKey(const GrGLSLCaps& caps, |
| 92 | GrProcessorKeyBuilder* b) const override {} |
| 93 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 94 | bool onIsEqual(const GrFragmentProcessor&) const override { return true; } |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 95 | |
| 96 | GrCoordTransform fDeviceTransform; |
| 97 | }; |
| 98 | |
bsalomon | 4a33952 | 2015-10-06 08:40:50 -0700 | [diff] [blame] | 99 | const GrFragmentProcessor* DCShader::asFragmentProcessor(GrContext*, |
| 100 | const SkMatrix& viewM, |
| 101 | const SkMatrix* localMatrix, |
| 102 | SkFilterQuality) const { |
| 103 | SkAutoTUnref<const GrFragmentProcessor> inner(new DCFP(fDeviceMatrix)); |
bsalomon | f1b7a1d | 2015-09-28 06:26:28 -0700 | [diff] [blame] | 104 | return GrFragmentProcessor::MulOutputByInputAlpha(inner); |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | class DCShaderGM : public GM { |
| 108 | public: |
| 109 | DCShaderGM() { |
caryclark | 65cdba6 | 2015-06-15 06:51:08 -0700 | [diff] [blame] | 110 | this->setBGColor(sk_tool_utils::color_to_565(0xFFAABBCC)); |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 111 | } |
| 112 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 113 | ~DCShaderGM() override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 114 | for (int i = 0; i < fPrims.count(); ++i) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 115 | delete fPrims[i]; |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 116 | } |
| 117 | } |
| 118 | |
| 119 | protected: |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 120 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 121 | SkString onShortName() override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 122 | return SkString("dcshader"); |
| 123 | } |
| 124 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 125 | SkISize onISize() override { return SkISize::Make(1000, 900); } |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 126 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 127 | void onOnceBeforeDraw() override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 128 | struct Rect : public Prim { |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 129 | SkRect draw(SkCanvas* canvas, const SkPaint& paint) override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 130 | SkRect rect = SkRect::MakeXYWH(0, 0, 50, 50); |
| 131 | canvas->drawRect(rect, paint); |
| 132 | return rect; |
| 133 | } |
| 134 | }; |
| 135 | |
| 136 | struct Circle : public Prim { |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 137 | SkRect draw(SkCanvas* canvas, const SkPaint& paint) override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 138 | static const SkScalar radius = 25; |
| 139 | canvas->drawCircle(radius, radius, radius, paint); |
| 140 | return SkRect::MakeXYWH(0, 0, 2 * radius, 2 * radius); |
| 141 | } |
| 142 | }; |
| 143 | |
| 144 | struct RRect : public Prim { |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 145 | SkRect draw(SkCanvas* canvas, const SkPaint& paint) override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 146 | SkRRect rrect; |
| 147 | rrect.setRectXY(SkRect::MakeXYWH(0, 0, 50, 50), 10, 10); |
| 148 | canvas->drawRRect(rrect, paint); |
| 149 | return rrect.getBounds(); |
| 150 | } |
| 151 | }; |
| 152 | |
| 153 | struct DRRect : public Prim { |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 154 | SkRect draw(SkCanvas* canvas, const SkPaint& paint) override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 155 | SkRRect outerRRect; |
| 156 | outerRRect.setRectXY(SkRect::MakeXYWH(0, 0, 50, 50), 5, 5); |
| 157 | SkRRect innerRRect; |
| 158 | innerRRect.setRectXY(SkRect::MakeXYWH(5, 8, 35, 30), 8, 3); |
| 159 | canvas->drawDRRect(outerRRect, innerRRect, paint); |
| 160 | return outerRRect.getBounds(); |
| 161 | } |
| 162 | }; |
| 163 | struct Path : public Prim { |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 164 | SkRect draw(SkCanvas* canvas, const SkPaint& paint) override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 165 | SkPath path; |
| 166 | path.addCircle(15, 15, 10); |
| 167 | path.addOval(SkRect::MakeXYWH(2, 2, 22, 37)); |
| 168 | path.setFillType(SkPath::kEvenOdd_FillType); |
| 169 | canvas->drawPath(path, paint); |
| 170 | return path.getBounds(); |
| 171 | } |
| 172 | }; |
| 173 | |
| 174 | struct Points : public Prim { |
| 175 | Points(SkCanvas::PointMode mode) : fMode(mode) {} |
| 176 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 177 | SkRect draw(SkCanvas* canvas, const SkPaint& paint) override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 178 | SkRandom random; |
| 179 | SkPoint points[500]; |
| 180 | SkRect bounds = SkRect::MakeWH(50, 50); |
| 181 | int count = SkToInt(SK_ARRAY_COUNT(points)); |
| 182 | if (SkCanvas::kPoints_PointMode != fMode) { |
| 183 | count = SkTMin(count, 10); |
| 184 | } |
| 185 | for (int p = 0; p < count; ++p) { |
| 186 | points[p].fX = random.nextUScalar1() * bounds.width(); |
| 187 | points[p].fY = random.nextUScalar1() * bounds.width(); |
| 188 | } |
| 189 | canvas->drawPoints(fMode, count, points, paint); |
| 190 | return bounds; |
| 191 | } |
| 192 | SkCanvas::PointMode fMode; |
| 193 | }; |
| 194 | |
| 195 | struct Text : public Prim { |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 196 | SkRect draw(SkCanvas* canvas, const SkPaint& origPaint) override { |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 197 | SkPaint paint = origPaint; |
| 198 | paint.setTextSize(30.f); |
| 199 | this->setFont(&paint); |
| 200 | const char* text = this->text(); |
| 201 | static const SkVector offset = SkVector::Make(10, 10); |
| 202 | canvas->drawText(text, strlen(text), offset.fX, offset.fY, paint); |
| 203 | SkRect bounds; |
| 204 | paint.measureText(text, strlen(text), &bounds); |
| 205 | bounds.offset(offset); |
| 206 | return bounds; |
| 207 | } |
| 208 | |
| 209 | virtual void setFont(SkPaint* paint) { |
caryclark | 1818acb | 2015-07-24 12:09:25 -0700 | [diff] [blame] | 210 | sk_tool_utils::set_portable_typeface(paint); |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | virtual const char* text() const { return "Hello, Skia!"; } |
| 214 | }; |
| 215 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 216 | fPrims.push_back(new Rect); |
| 217 | fPrims.push_back(new Circle); |
| 218 | fPrims.push_back(new RRect); |
| 219 | fPrims.push_back(new DRRect); |
| 220 | fPrims.push_back(new Path); |
| 221 | fPrims.push_back(new Points(SkCanvas::kPoints_PointMode)); |
| 222 | fPrims.push_back(new Points(SkCanvas::kLines_PointMode)); |
| 223 | fPrims.push_back(new Points(SkCanvas::kPolygon_PointMode)); |
| 224 | fPrims.push_back(new Text); |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 225 | } |
| 226 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 227 | void onDraw(SkCanvas* canvas) override { |
bsalomon | b62da80 | 2015-01-31 07:51:14 -0800 | [diff] [blame] | 228 | // This GM exists to test a specific feature of the GPU backend. It does not work with the |
| 229 | // sw rasterizer, tile modes, etc. |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 230 | if (nullptr == canvas->getGrContext()) { |
halcanary | 2a24338 | 2015-09-09 08:16:41 -0700 | [diff] [blame] | 231 | skiagm::GM::DrawGpuOnlyMessage(canvas); |
bsalomon | b62da80 | 2015-01-31 07:51:14 -0800 | [diff] [blame] | 232 | return; |
| 233 | } |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 234 | SkPaint paint; |
| 235 | SkTArray<SkMatrix> devMats; |
| 236 | devMats.push_back().reset(); |
| 237 | devMats.push_back().setRotate(45, 500, 500); |
| 238 | devMats.push_back().setRotate(-30, 200, 200); |
reed | 3f43f8a | 2015-01-20 19:58:36 -0800 | [diff] [blame] | 239 | devMats.back().setPerspX(-SK_Scalar1 / 2000); |
| 240 | devMats.back().setPerspY(SK_Scalar1 / 1000); |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 241 | |
| 242 | |
| 243 | SkTArray<SkMatrix> viewMats; |
| 244 | viewMats.push_back().setScale(0.75f, 0.75f); |
| 245 | viewMats.push_back().setRotate(45, 50, 50); |
| 246 | viewMats.back().postScale(0.5f, 1.1f); |
| 247 | |
| 248 | canvas->translate(10, 20); |
| 249 | canvas->save(); |
| 250 | SkScalar tx = 0, maxTy = 0; |
| 251 | static const SkScalar kW = 900; |
| 252 | |
| 253 | for (int aa = 0; aa < 2; ++aa) { |
| 254 | for (int i = 0; i < fPrims.count(); ++i) { |
| 255 | for (int j = 0; j < devMats.count(); ++j) { |
| 256 | for (int k = 0; k < viewMats.count(); ++k) { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 257 | paint.setShader(new DCShader(devMats[j]))->unref(); |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 258 | paint.setAntiAlias(SkToBool(aa)); |
| 259 | canvas->save(); |
| 260 | canvas->concat(viewMats[k]); |
| 261 | SkRect bounds = fPrims[i]->draw(canvas, paint); |
| 262 | canvas->restore(); |
| 263 | viewMats[k].mapRect(&bounds); |
| 264 | // add margins |
| 265 | bounds.fRight += 20; |
| 266 | bounds.fBottom += 20; |
| 267 | canvas->translate(bounds.fRight, 0); |
| 268 | tx += bounds.fRight; |
| 269 | maxTy = SkTMax(bounds.fBottom, maxTy); |
| 270 | if (tx > kW) { |
| 271 | tx = 0; |
| 272 | canvas->restore(); |
| 273 | canvas->translate(0, maxTy); |
| 274 | canvas->save(); |
| 275 | maxTy = 0; |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | } |
| 280 | } |
| 281 | canvas->restore(); |
| 282 | } |
| 283 | |
| 284 | private: |
| 285 | struct Prim { |
| 286 | virtual ~Prim() {} |
| 287 | virtual SkRect draw(SkCanvas*, const SkPaint&) = 0; |
| 288 | }; |
| 289 | |
| 290 | SkTArray<Prim*> fPrims; |
| 291 | |
| 292 | typedef GM INHERITED; |
| 293 | }; |
| 294 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 295 | DEF_GM(return new DCShaderGM;) |
bsalomon | b0ae649 | 2014-12-29 07:05:27 -0800 | [diff] [blame] | 296 | } |
| 297 | #endif |