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