1 #include "RenderScript.h"
2 #include <sys/time.h>
3
4 #include "ScriptC_latency.h"
5
main(int argc,char ** argv)6 int main(int argc, char** argv)
7 {
8 int iters = 100;
9 int numElems = 1000;
10 bool forceCpu = false;
11 bool synchronous = false;
12
13 if (argc >= 2) {
14 iters = atoi(argv[1]);
15 if (iters <= 0) {
16 printf("iters must be positive\n");
17 return 1;
18 }
19 }
20
21 printf("iters = %d\n", iters);
22
23 if (argc >= 3) {
24 numElems = atoi(argv[2]);
25 if (numElems <= 0) {
26 printf("numElems must be positive\n");
27 return 1;
28 }
29 }
30
31 if (argc >= 4) {
32 int temp = atoi(argv[3]);
33 if (temp != 0)
34 forceCpu = true;
35 }
36
37 if (argc >= 5) {
38 int temp = atoi(argv[4]);
39 if (temp != 0)
40 synchronous = true;
41 }
42
43 if (forceCpu)
44 printf("forcing CPU\n");
45
46 if (synchronous)
47 printf("forcing synchronous\n");
48
49 printf("numElems = %d\n", numElems);
50
51 sp<RS> rs = new RS();
52
53 uint32_t flags = 0;
54 if (forceCpu) flags |= RS_INIT_LOW_LATENCY;
55 if (synchronous) flags |= RS_INIT_SYNCHRONOUS;
56
57 if (!rs->init("/system/bin", flags)) {
58 printf("Could not initialize RenderScript\n");
59 return 1;
60 }
61
62 sp<const Element> e = Element::U32(rs);
63
64 Type::Builder tb(rs, e);
65 tb.setX(numElems);
66 sp<const Type> t = tb.create();
67
68 uint32_t *buf = new uint32_t[numElems];
69
70 sp<Allocation> ain = Allocation::createTyped(rs, t);
71 sp<Allocation> aout = Allocation::createTyped(rs, t);
72
73 sp<ScriptC_latency> sc = new ScriptC_latency(rs);
74
75 struct timeval start, stop;
76
77 gettimeofday(&start, nullptr);
78
79 for (int i = 0; i < iters; i++) {
80 sc->forEach_root(ain, aout);
81 }
82
83 rs->finish();
84
85 gettimeofday(&stop, nullptr);
86
87 long long elapsed = (stop.tv_sec * 1000000) - (start.tv_sec * 1000000) + (stop.tv_usec - start.tv_usec);
88 printf("elapsed time : %lld microseconds\n", elapsed);
89 printf("time per iter: %f microseconds\n", (double)elapsed / iters);
90
91 gettimeofday(&start, nullptr);
92
93 for (int i = 0; i < iters; i++) {
94 ain->copy1DFrom(buf);
95 sc->forEach_root(ain, aout);
96 aout->copy1DTo(buf);
97 }
98
99 rs->finish();
100
101 gettimeofday(&stop, nullptr);
102 elapsed = (stop.tv_sec * 1000000) - (start.tv_sec * 1000000) + (stop.tv_usec - start.tv_usec);
103 printf("elapsed time with copy : %lld microseconds\n", elapsed);
104 printf("time per iter with copy: %f microseconds\n", (double)elapsed / iters);
105
106 sc.clear();
107 t.clear();
108 e.clear();
109 ain.clear();
110 aout.clear();
111 }
112