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-rw-r--r--libs/pixman-0.40.0/test/prng-test.c175
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diff --git a/libs/pixman-0.40.0/test/prng-test.c b/libs/pixman-0.40.0/test/prng-test.c
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--- a/libs/pixman-0.40.0/test/prng-test.c
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@@ -1,175 +0,0 @@
-/*
- * Copyright © 2012 Siarhei Siamashka <siarhei.siamashka@gmail.com>
- *
- * Based on the public domain implementation of small noncryptographic PRNG
- * authored by Bob Jenkins: http://burtleburtle.net/bob/rand/smallprng.html
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#include <assert.h>
-#include <stdlib.h>
-#include "utils-prng.h"
-#include "utils.h"
-
-/* The original code from http://www.burtleburtle.net/bob/rand/smallprng.html */
-
-typedef uint32_t u4;
-typedef struct ranctx { u4 a; u4 b; u4 c; u4 d; } ranctx;
-
-#define rot(x,k) (((x)<<(k))|((x)>>(32-(k))))
-u4 ranval( ranctx *x ) {
- u4 e = x->a - rot(x->b, 27);
- x->a = x->b ^ rot(x->c, 17);
- x->b = x->c + x->d;
- x->c = x->d + e;
- x->d = e + x->a;
- return x->d;
-}
-
-void raninit( ranctx *x, u4 seed ) {
- u4 i;
- x->a = 0xf1ea5eed, x->b = x->c = x->d = seed;
- for (i=0; i<20; ++i) {
- (void)ranval(x);
- }
-}
-
-/*****************************************************************************/
-
-#define BUFSIZE (8 * 1024 * 1024)
-#define N 50
-
-void bench (void)
-{
- double t1, t2;
- int i;
- prng_t prng;
- uint8_t *buf = aligned_malloc (16, BUFSIZE + 1);
-
- prng_srand_r (&prng, 1234);
- t1 = gettime();
- for (i = 0; i < N; i++)
- prng_randmemset_r (&prng, buf, BUFSIZE, 0);
- t2 = gettime();
- printf ("aligned randmemset : %.2f MB/s\n",
- (double)BUFSIZE * N / 1000000. / (t2 - t1));
-
- t1 = gettime();
- for (i = 0; i < N; i++)
- prng_randmemset_r (&prng, buf + 1, BUFSIZE, 0);
- t2 = gettime();
- printf ("unaligned randmemset : %.2f MB/s\n",
- (double)BUFSIZE * N / 1000000. / (t2 - t1));
-
- t1 = gettime();
- for (i = 0; i < N; i++)
- {
- prng_randmemset_r (&prng, buf, BUFSIZE, RANDMEMSET_MORE_00_AND_FF);
- }
- t2 = gettime ();
- printf ("aligned randmemset (more 00 and FF) : %.2f MB/s\n",
- (double)BUFSIZE * N / 1000000. / (t2 - t1));
-
- t1 = gettime();
- for (i = 0; i < N; i++)
- {
- prng_randmemset_r (&prng, buf + 1, BUFSIZE, RANDMEMSET_MORE_00_AND_FF);
- }
- t2 = gettime ();
- printf ("unaligned randmemset (more 00 and FF) : %.2f MB/s\n",
- (double)BUFSIZE * N / 1000000. / (t2 - t1));
-
- free (buf);
-}
-
-#define SMALLBUFSIZE 100
-
-int main (int argc, char *argv[])
-{
- const uint32_t ref_crc[RANDMEMSET_MORE_00_AND_FF + 1] =
- {
- 0xBA06763D, 0x103FC550, 0x8B59ABA5, 0xD82A0F39,
- 0xD2321099, 0xFD8C5420, 0xD3B7C42A, 0xFC098093,
- 0x85E01DE0, 0x6680F8F7, 0x4D32DD3C, 0xAE52382B,
- 0x149E6CB5, 0x8B336987, 0x15DCB2B3, 0x8A71B781
- };
- uint32_t crc1, crc2;
- uint32_t ref, seed, seed0, seed1, seed2, seed3;
- prng_rand_128_data_t buf;
- uint8_t *bytebuf = aligned_malloc(16, SMALLBUFSIZE + 1);
- ranctx x;
- prng_t prng;
- prng_randmemset_flags_t flags;
-
- if (argc > 1 && strcmp(argv[1], "-bench") == 0)
- {
- bench ();
- return 0;
- }
-
- /* basic test */
- raninit (&x, 0);
- prng_srand_r (&prng, 0);
- assert (ranval (&x) == prng_rand_r (&prng));
-
- /* test for simd code */
- seed = 0;
- prng_srand_r (&prng, seed);
- seed0 = (seed = seed * 1103515245 + 12345);
- seed1 = (seed = seed * 1103515245 + 12345);
- seed2 = (seed = seed * 1103515245 + 12345);
- seed3 = (seed = seed * 1103515245 + 12345);
- prng_rand_128_r (&prng, &buf);
-
- raninit (&x, seed0);
- ref = ranval (&x);
- assert (ref == buf.w[0]);
-
- raninit (&x, seed1);
- ref = ranval (&x);
- assert (ref == buf.w[1]);
-
- raninit (&x, seed2);
- ref = ranval (&x);
- assert (ref == buf.w[2]);
-
- raninit (&x, seed3);
- ref = ranval (&x);
- assert (ref == buf.w[3]);
-
- /* test for randmemset */
- for (flags = 0; flags <= RANDMEMSET_MORE_00_AND_FF; flags++)
- {
- prng_srand_r (&prng, 1234);
- prng_randmemset_r (&prng, bytebuf, 16, flags);
- prng_randmemset_r (&prng, bytebuf + 16, SMALLBUFSIZE - 17, flags);
- crc1 = compute_crc32 (0, bytebuf, SMALLBUFSIZE - 1);
- prng_srand_r (&prng, 1234);
- prng_randmemset_r (&prng, bytebuf + 1, SMALLBUFSIZE - 1, flags);
- crc2 = compute_crc32 (0, bytebuf + 1, SMALLBUFSIZE - 1);
- assert (ref_crc[flags] == crc1);
- assert (ref_crc[flags] == crc2);
- }
-
- free (bytebuf);
-
- return 0;
-}