1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkCanvas.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkShader.h"
#include "SkString.h"
#include "SkVertices.h"
enum VertFlags {
kColors_VertFlag,
kTexture_VertFlag,
};
class VertBench : public Benchmark {
SkString fName;
enum {
W = 640,
H = 480,
ROW = 20,
COL = 20,
PTS = (ROW + 1) * (COL + 1),
IDX = ROW * COL * 6,
};
SkPoint fPts[PTS];
SkColor fColors[PTS];
uint16_t fIdx[IDX];
static void load_2_tris(uint16_t idx[], int x, int y, int rb) {
int n = y * rb + x;
idx[0] = n; idx[1] = n + 1; idx[2] = rb + n + 1;
idx[3] = n; idx[4] = rb + n + 1; idx[5] = n + rb;
}
public:
VertBench() {
const SkScalar dx = SkIntToScalar(W) / COL;
const SkScalar dy = SkIntToScalar(H) / COL;
SkPoint* pts = fPts;
uint16_t* idx = fIdx;
SkScalar yy = 0;
for (int y = 0; y <= ROW; y++) {
SkScalar xx = 0;
for (int x = 0; x <= COL; ++x) {
pts->set(xx, yy);
pts += 1;
xx += dx;
if (x < COL && y < ROW) {
load_2_tris(idx, x, y, COL + 1);
for (int i = 0; i < 6; i++) {
SkASSERT(idx[i] < PTS);
}
idx += 6;
}
}
yy += dy;
}
SkASSERT(PTS == pts - fPts);
SkASSERT(IDX == idx - fIdx);
SkRandom rand;
for (int i = 0; i < PTS; ++i) {
fColors[i] = rand.nextU() | (0xFF << 24);
}
fName.set("verts");
}
protected:
const char* onGetName() override { return fName.c_str(); }
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
this->setupPaint(&paint);
auto verts = SkVertices::MakeCopy(SkVertices::kTriangles_VertexMode, PTS,
fPts, nullptr, fColors, IDX, fIdx);
for (int i = 0; i < loops; i++) {
canvas->drawVertices(verts, SkBlendMode::kModulate, paint);
}
}
private:
typedef Benchmark INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
DEF_BENCH(return new VertBench();)
|
