many things, cosmo build!

2026-10-12 21:12:47 +03:00
parent ba4131abbf
commit 8d2bb5575e
29 changed files with 699 additions and 312 deletions
@@ -0,0 +1,121 @@
+/*
+    Centralized test suite.
+*/
+
+#include "bits.h"
+#include "fix.h"
+#include "std.h"
+#include <stdbool.h>
+
+#define TEST(p_e)                                                              \
+  do {                                                                         \
+    if (!(p_e)) {                                                              \
+      com_std_print('c', COM_DEF_STRLIT(p_e) " failed!");                      \
+      anyfail = true;                                                          \
+    }                                                                          \
+  } while (0)
+
+static bool com_test_fix(void) {
+  bool anyfail = false;
+  {
+    double max_sqrt_deviation = 0.0f;
+    com_fix_t sqrt_accumulator = 0;
+    com_fix_t sqrt_test_step = COM_FIX_FRACUNIT >> 2; /* Quarter step */
+    for (int i = 0; i < COM_FIX_FRACUNIT << 1; ++i) {
+      com_fix_t sqrt = com_fix_sqrt(sqrt_accumulator);
+      double const deviation =
+          com_std_sqrt(com_fix_as_float(sqrt_accumulator)) -
+          com_fix_as_float(sqrt);
+      if (deviation > max_sqrt_deviation)
+        max_sqrt_deviation = deviation;
+      sqrt_accumulator += sqrt_test_step;
+    }
+    com_std_print('c', "Max sqrt deviation: ", 'd', max_sqrt_deviation);
+  }
+
+  {
+    double max_sin_deviation = 0.0f;
+    com_fix_t sin_accumulator = -COM_FIX_PI * 4;
+    com_fix_t sin_test_step = (COM_FIX_PI << 1) >> 10;
+    for (int i = 0; i < 1024 * 32; ++i) {
+      com_fix_t sin = com_fix_sin(sin_accumulator);
+      double const deviation =
+          com_std_fabs(com_std_sin(com_fix_as_float(sin_accumulator)) -
+                       com_fix_as_float(sin));
+      if (deviation > max_sin_deviation)
+        max_sin_deviation = deviation;
+      sin_accumulator += sin_test_step;
+    }
+    com_std_print('c', "Max sin deviation: ", 'd', max_sin_deviation);
+  }
+
+  {
+    double max_cos_deviation = 0.0f;
+    com_fix_t cos_accumulator = -COM_FIX_PI * 4;
+    com_fix_t cos_test_step = (COM_FIX_PI << 1) >> 10;
+    for (int i = 0; i < 1024 * 32; ++i) {
+      com_fix_t cos = com_fix_cos(cos_accumulator);
+      double const deviation =
+          com_std_fabs(com_std_cos(com_fix_as_float(cos_accumulator)) -
+                       com_fix_as_float(cos));
+      if (deviation > max_cos_deviation)
+        max_cos_deviation = deviation;
+      cos_accumulator += cos_test_step;
+    }
+    com_std_print('c', "Max cos deviation: ", 'd', max_cos_deviation);
+  }
+
+  {
+    double max_sin_deviation = 0.0f;
+    double max_cos_deviation = 0.0f;
+    com_fix_t sincos_accumulator = -COM_FIX_PI * 4;
+    com_fix_t sincos_test_step = (COM_FIX_PI << 1) >> 10;
+    for (int i = 0; i < 1024 * 32; ++i) {
+      com_fix_t sin, cos;
+      com_fix_sincos(sincos_accumulator, &sin, &cos);
+      double const sin_deviation =
+          com_std_fabs(com_std_sin(com_fix_as_float(sincos_accumulator)) -
+                       com_fix_as_float(sin));
+      double const cos_deviation =
+          com_std_fabs(com_std_cos(com_fix_as_float(sincos_accumulator)) -
+                       com_fix_as_float(cos));
+      if (sin_deviation > max_sin_deviation)
+        max_sin_deviation = sin_deviation;
+      if (cos_deviation > max_cos_deviation)
+        max_cos_deviation = cos_deviation;
+      sincos_accumulator += sincos_test_step;
+    }
+    com_std_print('c', "Max sincos deviations: ", 'd', max_sin_deviation, 'd',
+                  max_cos_deviation);
+  }
+
+  return anyfail;
+}
+
+static bool com_test_bits(void) {
+  bool anyfail = false;
+
+  TEST(com_bits_nalign(0, 4) == 0);
+  TEST(com_bits_nalign(1, 4) == 4);
+  TEST(com_bits_nalign(2, 4) == 4);
+  TEST(com_bits_nalign(3, 4) == 4);
+  TEST(com_bits_nalign(4, 4) == 4);
+  TEST(com_bits_nalign(5, 4) == 8);
+
+  return anyfail;
+}
+
+static bool com_test_run(void) {
+  bool anyfail = false;
+  if (com_test_fix()) {
+    com_std_print('c', "com_fix tests failed!");
+    anyfail = true;
+  }
+  if (com_test_bits()) {
+    com_std_print('c', "com_bits tests failed!");
+    anyfail = true;
+  }
+  return !anyfail;
+}
+
+#undef TEST