Merge commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196'

* commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196':
  tests: Move all test programs to a subdirectory

Merged-by: Clément Bœsch <clement@stupeflix.com>

1 files changed, 156 insertions, 0 deletions

diff --git a/libavutil/tests/softfloat.c b/libavutil/tests/softfloat.c
new file mode 100644
index 0000000000..16788d4da9
--- /dev/null
+++ b/libavutil/tests/softfloat.c
@@ -0,0 +1,156 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <inttypes.h>
+
+#include "libavutil/softfloat.h"
+#include "libavutil/common.h"
+#include "libavutil/log.h"
+
+#include <stdio.h>
+
+static const SoftFloat FLOAT_0_017776489257 = {0x1234, 12};
+static const SoftFloat FLOAT_1374_40625 = {0xabcd, 25};
+static const SoftFloat FLOAT_0_1249694824218 = {0xFFF, 15};
+
+
+int main(void){
+    SoftFloat one= av_int2sf(1, 0);
+    SoftFloat sf1, sf2, sf3;
+    double d1, d2, d3;
+    int i, j;
+    av_log_set_level(AV_LOG_DEBUG);
+
+    d1= 1;
+    for(i= 0; i<10; i++){
+        d1= 1/(d1+1);
+    }
+    printf("test1 double=%d\n", (int)(d1 * (1<<24)));
+
+    sf1= one;
+    for(i= 0; i<10; i++){
+        sf1= av_div_sf(one, av_normalize_sf(av_add_sf(one, sf1)));
+    }
+    printf("test1 sf    =%d\n", av_sf2int(sf1, 24));
+
+
+    for(i= 0; i<100; i++){
+        START_TIMER
+        d1= i;
+        d2= i/100.0;
+        for(j= 0; j<1000; j++){
+            d1= (d1+1)*d2;
+        }
+        STOP_TIMER("float add mul")
+    }
+    printf("test2 double=%d\n", (int)(d1 * (1<<24)));
+
+    for(i= 0; i<100; i++){
+        START_TIMER
+        sf1= av_int2sf(i, 0);
+        sf2= av_div_sf(av_int2sf(i, 2), av_int2sf(200, 3));
+        for(j= 0; j<1000; j++){
+            sf1= av_mul_sf(av_add_sf(sf1, one),sf2);
+        }
+        STOP_TIMER("softfloat add mul")
+    }
+    printf("test2 sf    =%d (%d %d)\n", av_sf2int(sf1, 24), sf1.exp, sf1.mant);
+
+    d1 = 0.0177764893;
+    d2 = 1374.40625;
+    d3 = 0.1249694824;
+    d2 += d1;
+    d3 += d2;
+    printf("test3 double: %.10lf\n", d3);
+
+    sf1 = FLOAT_0_017776489257;
+    sf2 = FLOAT_1374_40625;
+    sf3 = FLOAT_0_1249694824218;
+    sf2 = av_add_sf(sf1, sf2);
+    sf3 = av_add_sf(sf3, sf2);
+    printf("test3 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf3), sf3.mant, sf3.exp);
+
+    sf1 = av_int2sf(0xFFFFFFF0, 0);
+    printf("test4 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf1), sf1.mant, sf1.exp);
+    sf1 = av_int2sf(0x00000010, 0);
+    printf("test4 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf1), sf1.mant, sf1.exp);
+
+    sf1 = av_int2sf(0x1FFFFFFF, 0);
+    printf("test4 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf1), sf1.mant, sf1.exp);
+    sf1 = av_int2sf(0xE0000001, 0);
+    printf("test4 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf1), sf1.mant, sf1.exp);
+
+
+    sf1 = (SoftFloat){ 0x20000000,   MIN_EXP };
+    sf1 = av_mul_sf(sf1, sf1);
+    printf("test5 softfloat: %.10lf (0x%08x %d)\n", (double)av_sf2double(sf1), sf1.mant, sf1.exp);
+
+    sf1 = (SoftFloat){ 0x20000000,   MIN_EXP };
+    sf2 = (SoftFloat){ 0x20000000,   MAX_EXP };
+    i = av_cmp_sf(sf1, sf2);
+    j = av_cmp_sf(sf2, sf1);
+    sf1 = av_div_sf(sf1, sf2);
+    printf("test6 softfloat: %.10lf (0x%08x %d) %d %d\n", (double)av_sf2double(sf1), sf1.mant, sf1.exp, i, j);
+
+    for(i= -50; i<50; i++) {
+        sf1= av_int2sf(i, 0);
+        for(j= -50; j<50; j++) {
+            int c;
+            sf2= av_int2sf(j, 0);
+            c = av_cmp_sf(sf1, sf2);
+            if (FFDIFFSIGN(i,j) != c && (FFDIFFSIGN(i,j)^c)<0) {
+                printf("av_cmp_sf failed at %d %d as %X\n", i, j, c);
+            }
+            c = av_gt_sf(sf1, sf2);
+            if ((i>j) != c) {
+                printf("av_gt_sf failed at %d %d as %X\n", i, j, c);
+            }
+        }
+        sf1 = av_int2sf(1, i);
+        for(j = -50; j < 50; j++) {
+            int c;
+            sf2 = av_int2sf(1, j);
+            c = av_cmp_sf(sf2, sf1);
+            if (FFDIFFSIGN(i,j) != c && (FFDIFFSIGN(i,j)^c) < 0) {
+                printf("av_cmp_sf failed2 at %d %d as %X\n", i, j, c);
+            }
+            c = av_gt_sf(sf1, sf2);
+            if ((i<j) != c) {
+                printf("av_gt_sf failed2 at %d %d as %X\n", i, j, c);
+            }
+        }
+    }
+
+
+    for(i= 0; i<4*36; i++){
+        int s, c;
+        double errs, errc;
+
+        av_sincos_sf(i*(1ULL<<32)/36/4, &s, &c);
+        errs = (double)s/ (1<<30) - sin(i*M_PI/36);
+        errc = (double)c/ (1<<30) - cos(i*M_PI/36);
+        if (fabs(errs) > 0.00000002 || fabs(errc) >0.001) {
+            printf("sincos FAIL %d %f %f %f %f\n", i, (float)s/ (1<<30), (float)c/ (1<<30), sin(i*M_PI/36), cos(i*M_PI/36));
+        }
+
+    }
+    return 0;
+
+}