commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2013 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 | // This test only works with the GPU backend. |
| 10 | |
| 11 | #include "gm.h" |
| 12 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 13 | #if SK_SUPPORT_GPU |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 14 | |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 15 | #include "GrBatchTarget.h" |
| 16 | #include "GrBufferAllocPool.h" |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 17 | #include "GrContext.h" |
| 18 | #include "GrPathUtils.h" |
| 19 | #include "GrTest.h" |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 20 | #include "GrTestBatch.h" |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 21 | #include "SkColorPriv.h" |
| 22 | #include "SkDevice.h" |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 23 | #include "SkGeometry.h" |
| 24 | |
| 25 | #include "effects/GrBezierEffect.h" |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 26 | |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 27 | static inline SkScalar eval_line(const SkPoint& p, const SkScalar lineEq[3], SkScalar sign) { |
| 28 | return sign * (lineEq[0] * p.fX + lineEq[1] * p.fY + lineEq[2]); |
| 29 | } |
| 30 | |
| 31 | namespace skiagm { |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 32 | |
| 33 | class BezierCubicOrConicTestBatch : public GrTestBatch { |
| 34 | public: |
| 35 | struct Geometry : public GrTestBatch::Geometry { |
| 36 | SkRect fBounds; |
| 37 | }; |
| 38 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 39 | const char* name() const override { return "BezierCubicOrConicTestBatch"; } |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 40 | |
| 41 | static GrBatch* Create(const GrGeometryProcessor* gp, const Geometry& geo, |
| 42 | const SkScalar klmEqs[9], SkScalar sign) { |
| 43 | return SkNEW_ARGS(BezierCubicOrConicTestBatch, (gp, geo, klmEqs, sign)); |
| 44 | } |
| 45 | |
| 46 | private: |
| 47 | BezierCubicOrConicTestBatch(const GrGeometryProcessor* gp, const Geometry& geo, |
| 48 | const SkScalar klmEqs[9], SkScalar sign) |
| 49 | : INHERITED(gp) { |
| 50 | for (int i = 0; i < 9; i++) { |
| 51 | fKlmEqs[i] = klmEqs[i]; |
| 52 | } |
| 53 | |
| 54 | fGeometry = geo; |
| 55 | fSign = sign; |
| 56 | } |
| 57 | |
| 58 | struct Vertex { |
| 59 | SkPoint fPosition; |
| 60 | float fKLM[4]; // The last value is ignored. The effect expects a vec4f. |
| 61 | }; |
| 62 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 63 | Geometry* geoData(int index) override { |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 64 | SkASSERT(0 == index); |
| 65 | return &fGeometry; |
| 66 | } |
| 67 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 68 | void onGenerateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) override { |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 69 | size_t vertexStride = this->geometryProcessor()->getVertexStride(); |
| 70 | |
| 71 | const GrVertexBuffer* vertexBuffer; |
| 72 | int firstVertex; |
| 73 | |
| 74 | void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride, |
| 75 | kVertsPerCubic, |
| 76 | &vertexBuffer, |
| 77 | &firstVertex); |
| 78 | |
joshualitt | 4b31de8 | 2015-03-05 14:33:41 -0800 | [diff] [blame] | 79 | if (!vertices || !batchTarget->quadIndexBuffer()) { |
| 80 | SkDebugf("Could not allocate buffers\n"); |
| 81 | return; |
| 82 | } |
| 83 | |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 84 | SkASSERT(vertexStride == sizeof(Vertex)); |
| 85 | Vertex* verts = reinterpret_cast<Vertex*>(vertices); |
| 86 | |
| 87 | verts[0].fPosition.setRectFan(fGeometry.fBounds.fLeft, fGeometry.fBounds.fTop, |
| 88 | fGeometry.fBounds.fRight, fGeometry.fBounds.fBottom, |
| 89 | sizeof(Vertex)); |
| 90 | for (int v = 0; v < 4; ++v) { |
| 91 | verts[v].fKLM[0] = eval_line(verts[v].fPosition, fKlmEqs + 0, fSign); |
| 92 | verts[v].fKLM[1] = eval_line(verts[v].fPosition, fKlmEqs + 3, fSign); |
| 93 | verts[v].fKLM[2] = eval_line(verts[v].fPosition, fKlmEqs + 6, 1.f); |
| 94 | } |
| 95 | |
| 96 | GrDrawTarget::DrawInfo drawInfo; |
| 97 | drawInfo.setPrimitiveType(kTriangleFan_GrPrimitiveType); |
| 98 | drawInfo.setVertexBuffer(vertexBuffer); |
| 99 | drawInfo.setStartVertex(firstVertex); |
| 100 | drawInfo.setVertexCount(kVertsPerCubic); |
| 101 | drawInfo.setStartIndex(0); |
| 102 | drawInfo.setIndexCount(kIndicesPerCubic); |
| 103 | drawInfo.setIndexBuffer(batchTarget->quadIndexBuffer()); |
| 104 | batchTarget->draw(drawInfo); |
| 105 | } |
| 106 | |
| 107 | Geometry fGeometry; |
| 108 | SkScalar fKlmEqs[9]; |
| 109 | SkScalar fSign; |
| 110 | |
| 111 | static const int kVertsPerCubic = 4; |
| 112 | static const int kIndicesPerCubic = 6; |
| 113 | |
| 114 | typedef GrTestBatch INHERITED; |
| 115 | }; |
| 116 | |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 117 | /** |
| 118 | * This GM directly exercises effects that draw Bezier curves in the GPU backend. |
| 119 | */ |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 120 | class BezierCubicEffects : public GM { |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 121 | public: |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 122 | BezierCubicEffects() { |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 123 | this->setBGColor(0xFFFFFFFF); |
| 124 | } |
| 125 | |
| 126 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 127 | SkString onShortName() override { |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 128 | return SkString("bezier_cubic_effects"); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 129 | } |
| 130 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 131 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 132 | return SkISize::Make(800, 800); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 133 | } |
| 134 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 135 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | 9c135db | 2014-03-12 18:28:35 +0000 | [diff] [blame] | 136 | GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget(); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 137 | if (NULL == rt) { |
bsalomon | b62da80 | 2015-01-31 07:51:14 -0800 | [diff] [blame] | 138 | this->drawGpuOnlyMessage(canvas); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 139 | return; |
| 140 | } |
| 141 | GrContext* context = rt->getContext(); |
| 142 | if (NULL == context) { |
| 143 | return; |
| 144 | } |
| 145 | |
| 146 | struct Vertex { |
| 147 | SkPoint fPosition; |
| 148 | float fKLM[4]; // The last value is ignored. The effect expects a vec4f. |
| 149 | }; |
| 150 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 151 | static const int kNumCubics = 15; |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 152 | SkRandom rand; |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 153 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 154 | // Mult by 3 for each edge effect type |
| 155 | int numCols = SkScalarCeilToInt(SkScalarSqrt(SkIntToScalar(kNumCubics*3))); |
| 156 | int numRows = SkScalarCeilToInt(SkIntToScalar(kNumCubics*3) / numCols); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 157 | SkScalar w = SkIntToScalar(rt->width()) / numCols; |
| 158 | SkScalar h = SkIntToScalar(rt->height()) / numRows; |
| 159 | int row = 0; |
| 160 | int col = 0; |
| 161 | |
| 162 | for (int i = 0; i < kNumCubics; ++i) { |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 163 | SkPoint baseControlPts[] = { |
| 164 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}, |
| 165 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}, |
| 166 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}, |
| 167 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)} |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 168 | }; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 169 | for(int edgeType = 0; edgeType < kGrProcessorEdgeTypeCnt; ++edgeType) { |
| 170 | SkAutoTUnref<GrGeometryProcessor> gp; |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 171 | { // scope to contain GrTestTarget |
| 172 | GrTestTarget tt; |
| 173 | context->getTestTarget(&tt); |
| 174 | if (NULL == tt.target()) { |
| 175 | continue; |
| 176 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 177 | GrPrimitiveEdgeType et = (GrPrimitiveEdgeType)edgeType; |
joshualitt | 8059eb9 | 2014-12-29 15:10:07 -0800 | [diff] [blame] | 178 | gp.reset(GrCubicEffect::Create(0xff000000, SkMatrix::I(), et, |
| 179 | *tt.target()->caps())); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 180 | if (!gp) { |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 181 | continue; |
| 182 | } |
| 183 | } |
| 184 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 185 | SkScalar x = SkScalarMul(col, w); |
| 186 | SkScalar y = SkScalarMul(row, h); |
| 187 | SkPoint controlPts[] = { |
| 188 | {x + baseControlPts[0].fX, y + baseControlPts[0].fY}, |
| 189 | {x + baseControlPts[1].fX, y + baseControlPts[1].fY}, |
| 190 | {x + baseControlPts[2].fX, y + baseControlPts[2].fY}, |
| 191 | {x + baseControlPts[3].fX, y + baseControlPts[3].fY} |
| 192 | }; |
| 193 | SkPoint chopped[10]; |
| 194 | SkScalar klmEqs[9]; |
| 195 | SkScalar klmSigns[3]; |
| 196 | int cnt = GrPathUtils::chopCubicAtLoopIntersection(controlPts, |
| 197 | chopped, |
| 198 | klmEqs, |
| 199 | klmSigns); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 200 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 201 | SkPaint ctrlPtPaint; |
| 202 | ctrlPtPaint.setColor(rand.nextU() | 0xFF000000); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 203 | for (int i = 0; i < 4; ++i) { |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 204 | canvas->drawCircle(controlPts[i].fX, controlPts[i].fY, 6.f, ctrlPtPaint); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 205 | } |
| 206 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 207 | SkPaint polyPaint; |
| 208 | polyPaint.setColor(0xffA0A0A0); |
| 209 | polyPaint.setStrokeWidth(0); |
| 210 | polyPaint.setStyle(SkPaint::kStroke_Style); |
| 211 | canvas->drawPoints(SkCanvas::kPolygon_PointMode, 4, controlPts, polyPaint); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 212 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 213 | SkPaint choppedPtPaint; |
| 214 | choppedPtPaint.setColor(~ctrlPtPaint.getColor() | 0xFF000000); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 215 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 216 | for (int c = 0; c < cnt; ++c) { |
| 217 | SkPoint* pts = chopped + 3 * c; |
| 218 | |
| 219 | for (int i = 0; i < 4; ++i) { |
| 220 | canvas->drawCircle(pts[i].fX, pts[i].fY, 3.f, choppedPtPaint); |
| 221 | } |
| 222 | |
| 223 | SkRect bounds; |
| 224 | bounds.set(pts, 4); |
| 225 | |
| 226 | SkPaint boundsPaint; |
| 227 | boundsPaint.setColor(0xff808080); |
| 228 | boundsPaint.setStrokeWidth(0); |
| 229 | boundsPaint.setStyle(SkPaint::kStroke_Style); |
| 230 | canvas->drawRect(bounds, boundsPaint); |
| 231 | |
joshualitt | 50408ad | 2014-11-03 12:31:14 -0800 | [diff] [blame] | 232 | GrTestTarget tt; |
| 233 | context->getTestTarget(&tt); |
| 234 | SkASSERT(tt.target()); |
| 235 | |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 236 | GrPipelineBuilder pipelineBuilder; |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 237 | pipelineBuilder.setRenderTarget(rt); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 238 | |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 239 | BezierCubicOrConicTestBatch::Geometry geometry; |
| 240 | geometry.fColor = gp->color(); |
| 241 | geometry.fBounds = bounds; |
| 242 | |
joshualitt | 44701df | 2015-02-23 14:44:57 -0800 | [diff] [blame] | 243 | SkAutoTUnref<GrBatch> batch( |
| 244 | BezierCubicOrConicTestBatch::Create(gp, geometry, klmEqs, klmSigns[c])); |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 245 | |
| 246 | tt.target()->drawBatch(&pipelineBuilder, batch, NULL); |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 247 | } |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 248 | ++col; |
| 249 | if (numCols == col) { |
| 250 | col = 0; |
| 251 | ++row; |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 252 | } |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 253 | } |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | private: |
| 258 | typedef GM INHERITED; |
| 259 | }; |
| 260 | |
| 261 | ////////////////////////////////////////////////////////////////////////////// |
| 262 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 263 | /** |
| 264 | * This GM directly exercises effects that draw Bezier curves in the GPU backend. |
| 265 | */ |
| 266 | class BezierConicEffects : public GM { |
| 267 | public: |
| 268 | BezierConicEffects() { |
| 269 | this->setBGColor(0xFFFFFFFF); |
| 270 | } |
| 271 | |
| 272 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 273 | SkString onShortName() override { |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 274 | return SkString("bezier_conic_effects"); |
| 275 | } |
| 276 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 277 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 278 | return SkISize::Make(800, 800); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 279 | } |
| 280 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 281 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 282 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | 9c135db | 2014-03-12 18:28:35 +0000 | [diff] [blame] | 283 | GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget(); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 284 | if (NULL == rt) { |
bsalomon | b62da80 | 2015-01-31 07:51:14 -0800 | [diff] [blame] | 285 | this->drawGpuOnlyMessage(canvas); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 286 | return; |
| 287 | } |
| 288 | GrContext* context = rt->getContext(); |
| 289 | if (NULL == context) { |
| 290 | return; |
| 291 | } |
| 292 | |
| 293 | struct Vertex { |
| 294 | SkPoint fPosition; |
| 295 | float fKLM[4]; // The last value is ignored. The effect expects a vec4f. |
| 296 | }; |
| 297 | |
| 298 | static const int kNumConics = 10; |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 299 | SkRandom rand; |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 300 | |
| 301 | // Mult by 3 for each edge effect type |
| 302 | int numCols = SkScalarCeilToInt(SkScalarSqrt(SkIntToScalar(kNumConics*3))); |
| 303 | int numRows = SkScalarCeilToInt(SkIntToScalar(kNumConics*3) / numCols); |
| 304 | SkScalar w = SkIntToScalar(rt->width()) / numCols; |
| 305 | SkScalar h = SkIntToScalar(rt->height()) / numRows; |
| 306 | int row = 0; |
| 307 | int col = 0; |
| 308 | |
| 309 | for (int i = 0; i < kNumConics; ++i) { |
| 310 | SkPoint baseControlPts[] = { |
| 311 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}, |
| 312 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}, |
| 313 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)} |
| 314 | }; |
| 315 | SkScalar weight = rand.nextRangeF(0.f, 2.f); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 316 | for(int edgeType = 0; edgeType < kGrProcessorEdgeTypeCnt; ++edgeType) { |
| 317 | SkAutoTUnref<GrGeometryProcessor> gp; |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 318 | { // scope to contain GrTestTarget |
| 319 | GrTestTarget tt; |
| 320 | context->getTestTarget(&tt); |
| 321 | if (NULL == tt.target()) { |
| 322 | continue; |
| 323 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 324 | GrPrimitiveEdgeType et = (GrPrimitiveEdgeType)edgeType; |
joshualitt | 8059eb9 | 2014-12-29 15:10:07 -0800 | [diff] [blame] | 325 | gp.reset(GrConicEffect::Create(0xff000000, SkMatrix::I(), et, |
| 326 | *tt.target()->caps(), SkMatrix::I())); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 327 | if (!gp) { |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 328 | continue; |
| 329 | } |
| 330 | } |
| 331 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 332 | SkScalar x = SkScalarMul(col, w); |
| 333 | SkScalar y = SkScalarMul(row, h); |
| 334 | SkPoint controlPts[] = { |
| 335 | {x + baseControlPts[0].fX, y + baseControlPts[0].fY}, |
| 336 | {x + baseControlPts[1].fX, y + baseControlPts[1].fY}, |
| 337 | {x + baseControlPts[2].fX, y + baseControlPts[2].fY} |
| 338 | }; |
| 339 | SkConic dst[4]; |
| 340 | SkScalar klmEqs[9]; |
| 341 | int cnt = chop_conic(controlPts, dst, weight); |
| 342 | GrPathUtils::getConicKLM(controlPts, weight, klmEqs); |
| 343 | |
| 344 | SkPaint ctrlPtPaint; |
| 345 | ctrlPtPaint.setColor(rand.nextU() | 0xFF000000); |
| 346 | for (int i = 0; i < 3; ++i) { |
| 347 | canvas->drawCircle(controlPts[i].fX, controlPts[i].fY, 6.f, ctrlPtPaint); |
| 348 | } |
| 349 | |
| 350 | SkPaint polyPaint; |
| 351 | polyPaint.setColor(0xffA0A0A0); |
| 352 | polyPaint.setStrokeWidth(0); |
| 353 | polyPaint.setStyle(SkPaint::kStroke_Style); |
| 354 | canvas->drawPoints(SkCanvas::kPolygon_PointMode, 3, controlPts, polyPaint); |
| 355 | |
| 356 | SkPaint choppedPtPaint; |
| 357 | choppedPtPaint.setColor(~ctrlPtPaint.getColor() | 0xFF000000); |
| 358 | |
| 359 | for (int c = 0; c < cnt; ++c) { |
| 360 | SkPoint* pts = dst[c].fPts; |
| 361 | for (int i = 0; i < 3; ++i) { |
| 362 | canvas->drawCircle(pts[i].fX, pts[i].fY, 3.f, choppedPtPaint); |
| 363 | } |
| 364 | |
| 365 | SkRect bounds; |
| 366 | //SkPoint bPts[] = {{0.f, 0.f}, {800.f, 800.f}}; |
| 367 | //bounds.set(bPts, 2); |
| 368 | bounds.set(pts, 3); |
| 369 | |
| 370 | SkPaint boundsPaint; |
| 371 | boundsPaint.setColor(0xff808080); |
| 372 | boundsPaint.setStrokeWidth(0); |
| 373 | boundsPaint.setStyle(SkPaint::kStroke_Style); |
| 374 | canvas->drawRect(bounds, boundsPaint); |
| 375 | |
joshualitt | 50408ad | 2014-11-03 12:31:14 -0800 | [diff] [blame] | 376 | GrTestTarget tt; |
| 377 | context->getTestTarget(&tt); |
| 378 | SkASSERT(tt.target()); |
| 379 | |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 380 | GrPipelineBuilder pipelineBuilder; |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 381 | pipelineBuilder.setRenderTarget(rt); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 382 | |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 383 | BezierCubicOrConicTestBatch::Geometry geometry; |
| 384 | geometry.fColor = gp->color(); |
| 385 | geometry.fBounds = bounds; |
| 386 | |
joshualitt | 44701df | 2015-02-23 14:44:57 -0800 | [diff] [blame] | 387 | SkAutoTUnref<GrBatch> batch( |
| 388 | BezierCubicOrConicTestBatch::Create(gp, geometry, klmEqs, 1.f)); |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 389 | |
| 390 | tt.target()->drawBatch(&pipelineBuilder, batch, NULL); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 391 | } |
| 392 | ++col; |
| 393 | if (numCols == col) { |
| 394 | col = 0; |
| 395 | ++row; |
| 396 | } |
| 397 | } |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | private: |
| 402 | // Uses the max curvature function for quads to estimate |
| 403 | // where to chop the conic. If the max curvature is not |
| 404 | // found along the curve segment it will return 1 and |
| 405 | // dst[0] is the original conic. If it returns 2 the dst[0] |
| 406 | // and dst[1] are the two new conics. |
| 407 | int split_conic(const SkPoint src[3], SkConic dst[2], const SkScalar weight) { |
| 408 | SkScalar t = SkFindQuadMaxCurvature(src); |
| 409 | if (t == 0) { |
| 410 | if (dst) { |
| 411 | dst[0].set(src, weight); |
| 412 | } |
| 413 | return 1; |
| 414 | } else { |
| 415 | if (dst) { |
| 416 | SkConic conic; |
| 417 | conic.set(src, weight); |
| 418 | conic.chopAt(t, dst); |
| 419 | } |
| 420 | return 2; |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | // Calls split_conic on the entire conic and then once more on each subsection. |
| 425 | // Most cases will result in either 1 conic (chop point is not within t range) |
| 426 | // or 3 points (split once and then one subsection is split again). |
| 427 | int chop_conic(const SkPoint src[3], SkConic dst[4], const SkScalar weight) { |
| 428 | SkConic dstTemp[2]; |
| 429 | int conicCnt = split_conic(src, dstTemp, weight); |
| 430 | if (2 == conicCnt) { |
| 431 | int conicCnt2 = split_conic(dstTemp[0].fPts, dst, dstTemp[0].fW); |
| 432 | conicCnt = conicCnt2 + split_conic(dstTemp[1].fPts, &dst[conicCnt2], dstTemp[1].fW); |
| 433 | } else { |
| 434 | dst[0] = dstTemp[0]; |
| 435 | } |
| 436 | return conicCnt; |
| 437 | } |
| 438 | |
| 439 | typedef GM INHERITED; |
| 440 | }; |
| 441 | |
| 442 | ////////////////////////////////////////////////////////////////////////////// |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 443 | |
| 444 | class BezierQuadTestBatch : public GrTestBatch { |
| 445 | public: |
| 446 | struct Geometry : public GrTestBatch::Geometry { |
| 447 | SkRect fBounds; |
| 448 | }; |
| 449 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 450 | const char* name() const override { return "BezierQuadTestBatch"; } |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 451 | |
| 452 | static GrBatch* Create(const GrGeometryProcessor* gp, const Geometry& geo, |
| 453 | const GrPathUtils::QuadUVMatrix& devToUV) { |
| 454 | return SkNEW_ARGS(BezierQuadTestBatch, (gp, geo, devToUV)); |
| 455 | } |
| 456 | |
| 457 | private: |
| 458 | BezierQuadTestBatch(const GrGeometryProcessor* gp, const Geometry& geo, |
| 459 | const GrPathUtils::QuadUVMatrix& devToUV) |
| 460 | : INHERITED(gp) |
| 461 | , fGeometry(geo) |
| 462 | , fDevToUV(devToUV) { |
| 463 | } |
| 464 | |
| 465 | struct Vertex { |
| 466 | SkPoint fPosition; |
| 467 | float fKLM[4]; // The last value is ignored. The effect expects a vec4f. |
| 468 | }; |
| 469 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 470 | Geometry* geoData(int index) override { |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 471 | SkASSERT(0 == index); |
| 472 | return &fGeometry; |
| 473 | } |
| 474 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 475 | void onGenerateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline) override { |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 476 | size_t vertexStride = this->geometryProcessor()->getVertexStride(); |
| 477 | |
| 478 | const GrVertexBuffer* vertexBuffer; |
| 479 | int firstVertex; |
| 480 | |
| 481 | void* vertices = batchTarget->vertexPool()->makeSpace(vertexStride, |
| 482 | kVertsPerCubic, |
| 483 | &vertexBuffer, |
| 484 | &firstVertex); |
| 485 | |
joshualitt | 4b31de8 | 2015-03-05 14:33:41 -0800 | [diff] [blame] | 486 | if (!vertices || !batchTarget->quadIndexBuffer()) { |
| 487 | SkDebugf("Could not allocate buffers\n"); |
| 488 | return; |
| 489 | } |
| 490 | |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 491 | SkASSERT(vertexStride == sizeof(Vertex)); |
| 492 | Vertex* verts = reinterpret_cast<Vertex*>(vertices); |
| 493 | |
| 494 | verts[0].fPosition.setRectFan(fGeometry.fBounds.fLeft, fGeometry.fBounds.fTop, |
| 495 | fGeometry.fBounds.fRight, fGeometry.fBounds.fBottom, |
| 496 | sizeof(Vertex)); |
| 497 | |
| 498 | fDevToUV.apply<4, sizeof(Vertex), sizeof(SkPoint)>(verts); |
| 499 | |
| 500 | |
| 501 | GrDrawTarget::DrawInfo drawInfo; |
| 502 | drawInfo.setPrimitiveType(kTriangles_GrPrimitiveType); |
| 503 | drawInfo.setVertexBuffer(vertexBuffer); |
| 504 | drawInfo.setStartVertex(firstVertex); |
| 505 | drawInfo.setVertexCount(kVertsPerCubic); |
| 506 | drawInfo.setStartIndex(0); |
| 507 | drawInfo.setIndexCount(kIndicesPerCubic); |
| 508 | drawInfo.setIndexBuffer(batchTarget->quadIndexBuffer()); |
| 509 | batchTarget->draw(drawInfo); |
| 510 | } |
| 511 | |
| 512 | Geometry fGeometry; |
| 513 | GrPathUtils::QuadUVMatrix fDevToUV; |
| 514 | |
| 515 | static const int kVertsPerCubic = 4; |
| 516 | static const int kIndicesPerCubic = 6; |
| 517 | |
| 518 | typedef GrTestBatch INHERITED; |
| 519 | }; |
| 520 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 521 | /** |
| 522 | * This GM directly exercises effects that draw Bezier quad curves in the GPU backend. |
| 523 | */ |
| 524 | class BezierQuadEffects : public GM { |
| 525 | public: |
| 526 | BezierQuadEffects() { |
| 527 | this->setBGColor(0xFFFFFFFF); |
| 528 | } |
| 529 | |
| 530 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 531 | SkString onShortName() override { |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 532 | return SkString("bezier_quad_effects"); |
| 533 | } |
| 534 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 535 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 536 | return SkISize::Make(800, 800); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 537 | } |
| 538 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 539 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 540 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | 9c135db | 2014-03-12 18:28:35 +0000 | [diff] [blame] | 541 | GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget(); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 542 | if (NULL == rt) { |
bsalomon | b62da80 | 2015-01-31 07:51:14 -0800 | [diff] [blame] | 543 | this->drawGpuOnlyMessage(canvas); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 544 | return; |
| 545 | } |
| 546 | GrContext* context = rt->getContext(); |
| 547 | if (NULL == context) { |
| 548 | return; |
| 549 | } |
| 550 | |
| 551 | struct Vertex { |
| 552 | SkPoint fPosition; |
| 553 | float fUV[4]; // The last two values are ignored. The effect expects a vec4f. |
| 554 | }; |
| 555 | |
| 556 | static const int kNumQuads = 5; |
commit-bot@chromium.org | e0e7cfe | 2013-09-09 20:09:12 +0000 | [diff] [blame] | 557 | SkRandom rand; |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 558 | |
| 559 | int numCols = SkScalarCeilToInt(SkScalarSqrt(SkIntToScalar(kNumQuads*3))); |
| 560 | int numRows = SkScalarCeilToInt(SkIntToScalar(kNumQuads*3) / numCols); |
| 561 | SkScalar w = SkIntToScalar(rt->width()) / numCols; |
| 562 | SkScalar h = SkIntToScalar(rt->height()) / numRows; |
| 563 | int row = 0; |
| 564 | int col = 0; |
| 565 | |
| 566 | for (int i = 0; i < kNumQuads; ++i) { |
| 567 | SkPoint baseControlPts[] = { |
| 568 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}, |
| 569 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}, |
| 570 | {rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)} |
| 571 | }; |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 572 | for(int edgeType = 0; edgeType < kGrProcessorEdgeTypeCnt; ++edgeType) { |
| 573 | SkAutoTUnref<GrGeometryProcessor> gp; |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 574 | { // scope to contain GrTestTarget |
| 575 | GrTestTarget tt; |
| 576 | context->getTestTarget(&tt); |
| 577 | if (NULL == tt.target()) { |
| 578 | continue; |
| 579 | } |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 580 | GrPrimitiveEdgeType et = (GrPrimitiveEdgeType)edgeType; |
joshualitt | 8059eb9 | 2014-12-29 15:10:07 -0800 | [diff] [blame] | 581 | gp.reset(GrQuadEffect::Create(0xff000000, SkMatrix::I(), et, |
| 582 | *tt.target()->caps(), SkMatrix::I())); |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 583 | if (!gp) { |
commit-bot@chromium.org | cabf4b2 | 2014-03-05 18:27:43 +0000 | [diff] [blame] | 584 | continue; |
| 585 | } |
| 586 | } |
| 587 | |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 588 | SkScalar x = SkScalarMul(col, w); |
| 589 | SkScalar y = SkScalarMul(row, h); |
| 590 | SkPoint controlPts[] = { |
| 591 | {x + baseControlPts[0].fX, y + baseControlPts[0].fY}, |
| 592 | {x + baseControlPts[1].fX, y + baseControlPts[1].fY}, |
| 593 | {x + baseControlPts[2].fX, y + baseControlPts[2].fY} |
| 594 | }; |
| 595 | SkPoint chopped[5]; |
| 596 | int cnt = SkChopQuadAtMaxCurvature(controlPts, chopped); |
| 597 | |
| 598 | SkPaint ctrlPtPaint; |
| 599 | ctrlPtPaint.setColor(rand.nextU() | 0xFF000000); |
| 600 | for (int i = 0; i < 3; ++i) { |
| 601 | canvas->drawCircle(controlPts[i].fX, controlPts[i].fY, 6.f, ctrlPtPaint); |
| 602 | } |
| 603 | |
| 604 | SkPaint polyPaint; |
| 605 | polyPaint.setColor(0xffA0A0A0); |
| 606 | polyPaint.setStrokeWidth(0); |
| 607 | polyPaint.setStyle(SkPaint::kStroke_Style); |
| 608 | canvas->drawPoints(SkCanvas::kPolygon_PointMode, 3, controlPts, polyPaint); |
| 609 | |
| 610 | SkPaint choppedPtPaint; |
| 611 | choppedPtPaint.setColor(~ctrlPtPaint.getColor() | 0xFF000000); |
| 612 | |
| 613 | for (int c = 0; c < cnt; ++c) { |
| 614 | SkPoint* pts = chopped + 2 * c; |
| 615 | |
| 616 | for (int i = 0; i < 3; ++i) { |
| 617 | canvas->drawCircle(pts[i].fX, pts[i].fY, 3.f, choppedPtPaint); |
| 618 | } |
| 619 | |
| 620 | SkRect bounds; |
| 621 | bounds.set(pts, 3); |
| 622 | |
| 623 | SkPaint boundsPaint; |
| 624 | boundsPaint.setColor(0xff808080); |
| 625 | boundsPaint.setStrokeWidth(0); |
| 626 | boundsPaint.setStyle(SkPaint::kStroke_Style); |
| 627 | canvas->drawRect(bounds, boundsPaint); |
| 628 | |
joshualitt | 50408ad | 2014-11-03 12:31:14 -0800 | [diff] [blame] | 629 | GrTestTarget tt; |
| 630 | context->getTestTarget(&tt); |
| 631 | SkASSERT(tt.target()); |
| 632 | |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 633 | GrPipelineBuilder pipelineBuilder; |
joshualitt | 94dff15 | 2015-02-11 13:03:15 -0800 | [diff] [blame] | 634 | pipelineBuilder.setRenderTarget(rt); |
joshualitt | 3f284d7 | 2015-02-11 11:34:58 -0800 | [diff] [blame] | 635 | |
joshualitt | 95964c6 | 2015-02-11 13:45:50 -0800 | [diff] [blame] | 636 | GrPathUtils::QuadUVMatrix DevToUV(pts); |
| 637 | |
| 638 | BezierQuadTestBatch::Geometry geometry; |
| 639 | geometry.fColor = gp->color(); |
| 640 | geometry.fBounds = bounds; |
| 641 | |
| 642 | SkAutoTUnref<GrBatch> batch(BezierQuadTestBatch::Create(gp, geometry, DevToUV)); |
| 643 | |
| 644 | tt.target()->drawBatch(&pipelineBuilder, batch, NULL); |
commit-bot@chromium.org | 53a0b6c | 2013-08-23 18:05:01 +0000 | [diff] [blame] | 645 | } |
| 646 | ++col; |
| 647 | if (numCols == col) { |
| 648 | col = 0; |
| 649 | ++row; |
| 650 | } |
| 651 | } |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | private: |
| 656 | typedef GM INHERITED; |
| 657 | }; |
| 658 | |
| 659 | DEF_GM( return SkNEW(BezierCubicEffects); ) |
| 660 | DEF_GM( return SkNEW(BezierConicEffects); ) |
| 661 | DEF_GM( return SkNEW(BezierQuadEffects); ) |
commit-bot@chromium.org | 78a1078 | 2013-08-21 19:27:48 +0000 | [diff] [blame] | 662 | |
| 663 | } |
| 664 | |
| 665 | #endif |