| 34 | |
| 35 | |
| 36 | int main(void){ |
| 37 | SoftFloat one= av_int2sf(1, 0); |
| 38 | SoftFloat sf1, sf2, sf3; |
| 39 | double d1, d2, d3; |
| 40 | int i, j; |
| 41 | av_log_set_level(AV_LOG_DEBUG); |
| 42 | |
| 43 | d1= 1; |
| 44 | for(i= 0; i<10; i++){ |
| 45 | d1= 1/(d1+1); |
| 46 | } |
| 47 | printf("test1 double=%d\n", (int)(d1 * (1<<24))); |
| 48 | |
| 49 | sf1= one; |
| 50 | for(i= 0; i<10; i++){ |
| 51 | sf1= av_div_sf(one, av_normalize_sf(av_add_sf(one, sf1))); |
| 52 | } |
| 53 | printf("test1 sf =%d\n", av_sf2int(sf1, 24)); |
| 54 | |
| 55 | |
| 56 | for(i= 0; i<100; i++){ |
| 57 | START_TIMER |
| 58 | d1= i; |
| 59 | d2= i/100.0; |
| 60 | for(j= 0; j<1000; j++){ |
| 61 | d1= (d1+1)*d2; |
| 62 | } |
| 63 | STOP_TIMER("float add mul") |
| 64 | } |
| 65 | printf("test2 double=%d\n", (int)(d1 * (1<<24))); |
| 66 | |
| 67 | for(i= 0; i<100; i++){ |
| 68 | START_TIMER |
| 69 | sf1= av_int2sf(i, 0); |
| 70 | sf2= av_div_sf(av_int2sf(i, 2), av_int2sf(200, 3)); |
| 71 | for(j= 0; j<1000; j++){ |
| 72 | sf1= av_mul_sf(av_add_sf(sf1, one),sf2); |
| 73 | } |
| 74 | STOP_TIMER("softfloat add mul") |
| 75 | } |
| 76 | printf("test2 sf =%d (%d %d)\n", av_sf2int(sf1, 24), sf1.exp, sf1.mant); |
| 77 | |
| 78 | d1 = 0.0177764893; |
| 79 | d2 = 1374.40625; |
| 80 | d3 = 0.1249694824; |
| 81 | d2 += d1; |
| 82 | d3 += d2; |
| 83 | printf("test3 double: %.10lf\n", d3); |
| 84 | |
| 85 | sf1 = FLOAT_0_017776489257; |
| 86 | sf2 = FLOAT_1374_40625; |
| 87 | sf3 = FLOAT_0_1249694824218; |
| 88 | sf2 = av_add_sf(sf1, sf2); |
| 89 | sf3 = av_add_sf(sf3, sf2); |
| 90 | printf("test3 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf3), sf3.mant, sf3.exp); |
| 91 | |
| 92 | sf1 = av_int2sf(0xFFFFFFF0, 0); |
| 93 | printf("test4 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf1), sf1.mant, sf1.exp); |
nothing calls this directly
no test coverage detected