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 8 #include "Benchmark.h" 9 #include "SkCanvas.h" 10 #include "SkPaint.h" 11 #include "SkRandom.h" 12 #include "SkShader.h" 13 #include "SkString.h" 14 #include "SkVertices.h" 15 16 enum VertFlags { 17 kColors_VertFlag, 18 kTexture_VertFlag, 19 }; 20 21 class VertBench : public Benchmark { 22 SkString fName; 23 enum { 24 W = 640, 25 H = 480, 26 ROW = 20, 27 COL = 20, 28 PTS = (ROW + 1) * (COL + 1), 29 IDX = ROW * COL * 6, 30 }; 31 32 SkPoint fPts[PTS]; 33 SkColor fColors[PTS]; 34 uint16_t fIdx[IDX]; 35 load_2_tris(uint16_t idx[],int x,int y,int rb)36 static void load_2_tris(uint16_t idx[], int x, int y, int rb) { 37 int n = y * rb + x; 38 idx[0] = n; idx[1] = n + 1; idx[2] = rb + n + 1; 39 idx[3] = n; idx[4] = rb + n + 1; idx[5] = n + rb; 40 } 41 42 public: VertBench()43 VertBench() { 44 const SkScalar dx = SkIntToScalar(W) / COL; 45 const SkScalar dy = SkIntToScalar(H) / COL; 46 47 SkPoint* pts = fPts; 48 uint16_t* idx = fIdx; 49 50 SkScalar yy = 0; 51 for (int y = 0; y <= ROW; y++) { 52 SkScalar xx = 0; 53 for (int x = 0; x <= COL; ++x) { 54 pts->set(xx, yy); 55 pts += 1; 56 xx += dx; 57 58 if (x < COL && y < ROW) { 59 load_2_tris(idx, x, y, COL + 1); 60 for (int i = 0; i < 6; i++) { 61 SkASSERT(idx[i] < PTS); 62 } 63 idx += 6; 64 } 65 } 66 yy += dy; 67 } 68 SkASSERT(PTS == pts - fPts); 69 SkASSERT(IDX == idx - fIdx); 70 71 SkRandom rand; 72 for (int i = 0; i < PTS; ++i) { 73 fColors[i] = rand.nextU() | (0xFF << 24); 74 } 75 76 fName.set("verts"); 77 } 78 79 protected: onGetName()80 const char* onGetName() override { return fName.c_str(); } onDraw(int loops,SkCanvas * canvas)81 void onDraw(int loops, SkCanvas* canvas) override { 82 SkPaint paint; 83 this->setupPaint(&paint); 84 85 auto verts = SkVertices::MakeCopy(SkVertices::kTriangles_VertexMode, PTS, 86 fPts, nullptr, fColors, IDX, fIdx); 87 for (int i = 0; i < loops; i++) { 88 canvas->drawVertices(verts, SkBlendMode::kModulate, paint); 89 } 90 } 91 private: 92 typedef Benchmark INHERITED; 93 }; 94 95 /////////////////////////////////////////////////////////////////////////////// 96 97 DEF_BENCH(return new VertBench();) 98