basis_universal: Update to upstream commit from Apr 16, 2021

BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.

1 files changed, 311 insertions, 0 deletions

diff --git a/thirdparty/basis_universal/transcoder/basisu_containers_impl.h b/thirdparty/basis_universal/transcoder/basisu_containers_impl.h
new file mode 100644
index 0000000000..6555171419
--- /dev/null
+++ b/thirdparty/basis_universal/transcoder/basisu_containers_impl.h
@@ -0,0 +1,311 @@
+// basisu_containers_impl.h
+// Do not include directly
+
+#ifdef _MSC_VER
+#pragma warning (disable:4127) // warning C4127: conditional expression is constant
+#endif
+
+namespace basisu
+{
+   bool elemental_vector::increase_capacity(uint32_t min_new_capacity, bool grow_hint, uint32_t element_size, object_mover pMover, bool nofail)
+   {
+      assert(m_size <= m_capacity);
+
+      if (sizeof(void *) == sizeof(uint64_t))
+         assert(min_new_capacity < (0x400000000ULL / element_size));
+      else
+         assert(min_new_capacity < (0x7FFF0000U / element_size));
+
+      if (m_capacity >= min_new_capacity)
+         return true;
+
+      size_t new_capacity = min_new_capacity;
+      if ((grow_hint) && (!helpers::is_power_of_2((uint64_t)new_capacity)))
+      {
+         new_capacity = (size_t)helpers::next_pow2((uint64_t)new_capacity);
+
+         assert(new_capacity && (new_capacity > m_capacity));
+
+         if (new_capacity < min_new_capacity)
+         {
+            if (nofail)
+               return false;
+            fprintf(stderr, "vector too large\n");
+            abort();
+         }
+      }
+            
+      const size_t desired_size = element_size * new_capacity;
+      size_t actual_size = 0;
+      if (!pMover)
+      {
+         void* new_p = realloc(m_p, desired_size);
+         if (!new_p)
+         {
+            if (nofail)
+               return false;
+
+            char buf[256];
+#ifdef _MSC_VER
+            sprintf_s(buf, sizeof(buf), "vector: realloc() failed allocating %u bytes", (uint32_t)desired_size);
+#else
+            sprintf(buf, "vector: realloc() failed allocating %u bytes", (uint32_t)desired_size);
+#endif
+            fprintf(stderr, "%s", buf);
+            abort();
+         }
+
+#ifdef _MSC_VER
+         actual_size = _msize(new_p);
+#elif HAS_MALLOC_USABLE_SIZE
+         actual_size = malloc_usable_size(new_p);
+#else
+         actual_size = desired_size;
+#endif
+         m_p = new_p;
+      }
+      else
+      {
+         void* new_p = malloc(desired_size);
+         if (!new_p)
+         {
+            if (nofail)
+               return false;
+
+            char buf[256];
+#ifdef _MSC_VER
+            sprintf_s(buf, sizeof(buf), "vector: malloc() failed allocating %u bytes", (uint32_t)desired_size);
+#else
+            sprintf(buf, "vector: malloc() failed allocating %u bytes", (uint32_t)desired_size);
+#endif
+            fprintf(stderr, "%s", buf);
+            abort();
+         }
+
+#ifdef _MSC_VER
+         actual_size = _msize(new_p);
+#elif HAS_MALLOC_USABLE_SIZE
+         actual_size = malloc_usable_size(new_p);
+#else
+         actual_size = desired_size;
+#endif
+
+         (*pMover)(new_p, m_p, m_size);
+
+         if (m_p)
+            free(m_p);
+         
+         m_p = new_p;
+      }
+
+      if (actual_size > desired_size)
+         m_capacity = static_cast<uint32_t>(actual_size / element_size);
+      else
+         m_capacity = static_cast<uint32_t>(new_capacity);
+
+      return true;
+   }
+
+#if BASISU_HASHMAP_TEST
+
+#define HASHMAP_TEST_VERIFY(c) do { if (!(c)) handle_hashmap_test_verify_failure(__LINE__); } while(0)
+
+   static void handle_hashmap_test_verify_failure(int line)
+   {
+      fprintf(stderr, "HASHMAP_TEST_VERIFY() faild on line %i\n", line);
+      abort();
+   }
+
+   class counted_obj
+   {
+   public:
+      counted_obj(uint32_t v = 0) :
+         m_val(v)
+      {
+         m_count++;
+      }
+
+      counted_obj(const counted_obj& obj) :
+         m_val(obj.m_val)
+      {
+         m_count++;
+      }
+
+      ~counted_obj()
+      {
+         assert(m_count > 0);
+         m_count--;
+      }
+
+      static uint32_t m_count;
+
+      uint32_t m_val;
+
+      operator size_t() const { return m_val; }
+
+      bool operator== (const counted_obj& rhs) const { return m_val == rhs.m_val; }
+      bool operator== (const uint32_t rhs) const { return m_val == rhs; }
+
+   };
+
+   uint32_t counted_obj::m_count;
+
+   static uint32_t urand32()
+   {
+      uint32_t a = rand();
+      uint32_t b = rand() << 15;
+      uint32_t c = rand() << (32 - 15);
+      return a ^ b ^ c;
+   }
+
+   static int irand32(int l, int h)
+   {
+      assert(l < h);
+      if (l >= h)
+         return l;
+
+      uint32_t range = static_cast<uint32_t>(h - l);
+
+      uint32_t rnd = urand32();
+
+      uint32_t rnd_range = static_cast<uint32_t>((((uint64_t)range) * ((uint64_t)rnd)) >> 32U);
+
+      int result = l + rnd_range;
+      assert((result >= l) && (result < h));
+      return result;
+   }
+
+   void hash_map_test()
+   {
+      {
+         basisu::hash_map<uint64_t, uint64_t> k;
+         basisu::hash_map<uint64_t, uint64_t> l;
+         std::swap(k, l);
+
+         k.begin();
+         k.end();
+         k.clear();
+         k.empty();
+         k.erase(0);
+         k.insert(0, 1);
+         k.find(0);
+         k.get_equals();
+         k.get_hasher();
+         k.get_table_size();
+         k.reset();
+         k.reserve(1);
+         k = l;
+         k.set_equals(l.get_equals());
+         k.set_hasher(l.get_hasher());
+         k.get_table_size();
+      }
+
+      uint32_t seed = 0;
+      for (; ; )
+      {
+         seed++;
+
+         typedef basisu::hash_map<counted_obj, counted_obj> my_hash_map;
+         my_hash_map m;
+
+         const uint32_t n = irand32(0, 100000);
+
+         printf("%u\n", n);
+
+         srand(seed); // r1.seed(seed);
+
+         basisu::vector<int> q;
+
+         uint32_t count = 0;
+         for (uint32_t i = 0; i < n; i++)
+         {
+            uint32_t v = urand32() & 0x7FFFFFFF;
+            my_hash_map::insert_result res = m.insert(counted_obj(v), counted_obj(v ^ 0xdeadbeef));
+            if (res.second)
+            {
+               count++;
+               q.push_back(v);
+            }
+         }
+
+         HASHMAP_TEST_VERIFY(m.size() == count);
+
+         srand(seed);
+
+         my_hash_map cm(m);
+         m.clear();
+         m = cm;
+         cm.reset();
+
+         for (uint32_t i = 0; i < n; i++)
+         {
+            uint32_t v = urand32() & 0x7FFFFFFF;
+            my_hash_map::const_iterator it = m.find(counted_obj(v));
+            HASHMAP_TEST_VERIFY(it != m.end());
+            HASHMAP_TEST_VERIFY(it->first == v);
+            HASHMAP_TEST_VERIFY(it->second == (v ^ 0xdeadbeef));
+         }
+
+         for (uint32_t t = 0; t < 2; t++)
+         {
+            const uint32_t nd = irand32(1, q.size() + 1);
+            for (uint32_t i = 0; i < nd; i++)
+            {
+               uint32_t p = irand32(0, q.size());
+
+               int k = q[p];
+               if (k >= 0)
+               {
+                  q[p] = -k - 1;
+
+                  bool s = m.erase(counted_obj(k));
+                  HASHMAP_TEST_VERIFY(s);
+               }
+            }
+
+            typedef basisu::hash_map<uint32_t, empty_type> uint_hash_set;
+            uint_hash_set s;
+
+            for (uint32_t i = 0; i < q.size(); i++)
+            {
+               int v = q[i];
+
+               if (v >= 0)
+               {
+                  my_hash_map::const_iterator it = m.find(counted_obj(v));
+                  HASHMAP_TEST_VERIFY(it != m.end());
+                  HASHMAP_TEST_VERIFY(it->first == (uint32_t)v);
+                  HASHMAP_TEST_VERIFY(it->second == ((uint32_t)v ^ 0xdeadbeef));
+
+                  s.insert(v);
+               }
+               else
+               {
+                  my_hash_map::const_iterator it = m.find(counted_obj(-v - 1));
+                  HASHMAP_TEST_VERIFY(it == m.end());
+               }
+            }
+
+            uint32_t found_count = 0;
+            for (my_hash_map::const_iterator it = m.begin(); it != m.end(); ++it)
+            {
+               HASHMAP_TEST_VERIFY(it->second == ((uint32_t)it->first ^ 0xdeadbeef));
+
+               uint_hash_set::const_iterator fit(s.find((uint32_t)it->first));
+               HASHMAP_TEST_VERIFY(fit != s.end());
+
+               HASHMAP_TEST_VERIFY(fit->first == it->first);
+
+               found_count++;
+            }
+
+            HASHMAP_TEST_VERIFY(found_count == s.size());
+         }
+
+         HASHMAP_TEST_VERIFY(counted_obj::m_count == m.size() * 2);
+      }
+   }
+
+#endif // BASISU_HASHMAP_TEST
+
+} // namespace basisu