asdfuser pushed a commit to branch master.
commit 7c20a90c3dc0b14370d9f9c81d3ea0aee0156954
Author: Daniel Willmann <[email protected]>
Date: Fri May 17 16:46:23 2013 +0100
eina_test_fp: Test multiplication and division as well
Signed-off-by: Daniel Willmann <[email protected]>
---
src/tests/eina/eina_test_fp.c | 98 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 98 insertions(+)
diff --git a/src/tests/eina/eina_test_fp.c b/src/tests/eina/eina_test_fp.c
index bdb3100..ef1b1d4 100644
--- a/src/tests/eina/eina_test_fp.c
+++ b/src/tests/eina/eina_test_fp.c
@@ -85,9 +85,107 @@ START_TEST(eina_fp_sin)
}
END_TEST
+START_TEST(eina_fp_mul)
+{
+ Eina_F32p32 fc1, fc2;
+ Eina_F32p32 fresult;
+ double dc1, dc2;
+ double dl1, dl2;
+ double step1, step2;
+ double dresult;
+ double delta, delta_per;
+ double maxdelta = 0;
+ double maxdelta_per = 0;
+
+ fail_if(!eina_init());
+
+ dl1 = 10;
+ step1 = 0.001;
+ dl2 = 1000;
+ step2 = 0.01;
+
+ for (dc1 = 0; dc1 < dl1; dc1 += step1)
+ {
+ for (dc2 = 0; dc2 < dl2; dc2 += step2)
+ {
+ dresult = dc1 * dc2;
+
+ fc1 = eina_f32p32_double_from(dc1);
+ fc2 = eina_f32p32_double_from(dc2);
+ fresult = eina_f32p32_mul(fc1, fc2);
+
+ delta = fabs(dresult - eina_f32p32_double_to(fresult));
+ delta_per = delta/dresult;
+ if (delta > 0.008 || delta_per > 0.01)
+ {
+ printf("%f*%f = %f (delta: %f, %f%%)\n", dc1, dc2, dresult,
delta, delta_per*100);
+ fail_if(delta > 0.005 || delta_per > 0.01);
+ }
+ if (delta > maxdelta)
+ maxdelta = delta;
+ if (delta_per > maxdelta_per)
+ maxdelta_per = delta_per;
+ }
+ }
+ printf("Max delta(multiplication): %f (%f%%)\n", maxdelta,
maxdelta_per*100);
+
+ eina_shutdown();
+}
+END_TEST
+
+START_TEST(eina_fp_div)
+{
+ Eina_F32p32 fc1, fc2;
+ Eina_F32p32 fresult;
+ double dc1, dc2;
+ double dl1, dl2;
+ double step1, step2;
+ double dresult;
+ double delta, delta_per;
+ double maxdelta = 0;
+ double maxdelta_per = 0;
+
+ fail_if(!eina_init());
+
+ dl1 = 10;
+ step1 = 0.001;
+ dl2 = 1000;
+ step2 = 0.01;
+
+ for (dc1 = 0; dc1 < dl1; dc1 += step1)
+ {
+ for (dc2 = step2; dc2 < dl2; dc2 += step2)
+ {
+ dresult = dc1 / dc2;
+
+ fc1 = eina_f32p32_double_from(dc1);
+ fc2 = eina_f32p32_double_from(dc2);
+ fresult = eina_f32p32_div(fc1, fc2);
+
+ delta = fabs(dresult - eina_f32p32_double_to(fresult));
+ delta_per = delta/dresult;
+ if (delta > 0.005 || delta_per > 0.03)
+ {
+ printf("%f/%f = %f (delta %f, %f%%)\n", dc1, dc2, dresult,
delta, delta_per*100);
+ fail_if(delta > 0.005 || delta_per > 0.03);
+ }
+ if (delta > maxdelta)
+ maxdelta = delta;
+ if (delta_per > maxdelta_per)
+ maxdelta_per = delta_per;
+ }
+ }
+ printf("Max delta(division): %f (%f%%)\n", maxdelta, maxdelta_per*100);
+
+ eina_shutdown();
+}
+END_TEST
+
void
eina_test_fp(TCase *tc)
{
tcase_add_test(tc, eina_fp_cos);
tcase_add_test(tc, eina_fp_sin);
+ tcase_add_test(tc, eina_fp_mul);
+ tcase_add_test(tc, eina_fp_div);
}
--
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