BitMap: Change the size param to the number of entries (bits)

src/xenia/base/bit_map.cc

@@ -17,13 +17,13 @@ namespace xe {
 
 BitMap::BitMap() = default;
 
-BitMap::BitMap(size_t size) { Resize(size); }
+BitMap::BitMap(size_t size_bits) { Resize(size_bits); }
 
-BitMap::BitMap(uint32_t* data, size_t size) {
-  assert_true(size % 4 == 0);
+BitMap::BitMap(uint32_t* data, size_t size_bits) {
+  assert_true(size_bits % 32 == 0);
 
-  data_.resize(size / 4);
-  std::memcpy(data_.data(), data, size);
+  data_.resize(size_bits / 32);
+  std::memcpy(data_.data(), data, size_bits / 32);
 }
 
 size_t BitMap::Acquire() {
@@ -74,10 +74,10 @@ void BitMap::Release(size_t index) {
   } while (!atomic_cas(entry, new_entry, &data_[slot]));
 }
 
-void BitMap::Resize(size_t new_size) {
+void BitMap::Resize(size_t new_size_bits) {
   auto old_size = data_.size();
-  assert_true(new_size % 4 == 0);
-  data_.resize(new_size / 4);
+  assert_true(new_size_bits % 32 == 0);
+  data_.resize(new_size_bits / 32);
 
   // Initialize new entries.
   if (data_.size() > old_size) {

src/xenia/base/bit_map.h

@@ -20,13 +20,13 @@ class BitMap {
  public:
   BitMap();
 
-  // Size is the number of 8-bit entries, must be a multiple of 4.
-  BitMap(size_t size);
+  // Size is the number of entries, must be a multiple of 32.
+  BitMap(size_t size_bits);
 
   // Data does not have to be aligned to a 4-byte boundary, but it is
   // preferable.
-  // Size is the number of 8-bit entries, must be a multiple of 4.
-  BitMap(uint32_t* data, size_t size);
+  // Size is the number of entries, must be a multiple of 32.
+  BitMap(uint32_t* data, size_t size_bits);
 
   // (threadsafe) Acquires an entry and returns its index. Returns -1 if there
   // are no more free entries.
@@ -35,9 +35,8 @@ class BitMap {
   // (threadsafe) Releases an entry by an index.
   void Release(size_t index);
 
-  // Resize the bitmap. Size is the number of 8-bit entries, must be a multiple
-  // of 4.
-  void Resize(size_t new_size);
+  // Resize the bitmap. Size is the number of entries, must be a multiple of 32.
+  void Resize(size_t new_size_bits);
 
   // Sets all entries to free.
   void Reset();

src/xenia/kernel/kernel_state.cc

@@ -80,7 +80,7 @@ KernelState::KernelState(Emulator* emulator)
   pib->unk_54 = pib->unk_58 = 0;
 
   // Hardcoded maximum of 2048 TLS slots.
-  tls_bitmap_.Resize(64 * 4);
+  tls_bitmap_.Resize(2048);
 
   xam::AppManager::RegisterApps(this, app_manager_.get());
 }