Merge pull request #5 from WinampDesktop/community

Merge to main

1 files changed, 66 insertions, 0 deletions

diff --git a/Src/Wasabi/bfc/memblock.cpp b/Src/Wasabi/bfc/memblock.cpp
new file mode 100644
index 00000000..668e1ccd
--- /dev/null
+++ b/Src/Wasabi/bfc/memblock.cpp
@@ -0,0 +1,66 @@
+#include "memblock.h"
+#include <bfc/bfc_assert.h>
+
+#ifdef _DEBUG
+int memblocks_totalsize=0;
+#endif
+
+VoidMemBlock::VoidMemBlock(int _size, const void *data) {
+  mem = NULL;
+  size = 0;
+  setSize(_size);
+  if (data != NULL && size > 0) MEMCPY(mem, data, size);
+}
+
+VoidMemBlock::~VoidMemBlock() {
+#ifdef _DEBUG
+  memblocks_totalsize -= size;
+#endif
+  FREE(mem);
+}
+
+void *VoidMemBlock::setSize(int newsize) {
+#ifdef _DEBUG
+  memblocks_totalsize -= size;
+#endif
+  ASSERT(newsize >= 0);
+  if (newsize < 0) newsize = 0;
+  if (newsize == 0) {
+    FREE(mem);
+    mem = NULL;
+  } else if (size != newsize) {
+    mem = REALLOC(mem, newsize);
+  }
+  size = newsize;
+#ifdef _DEBUG
+  memblocks_totalsize += size;
+#endif
+  return getMemory();
+}
+
+void *VoidMemBlock::setMinimumSize(int newminsize, int increment) {
+  if (newminsize > size) setSize(newminsize+increment);
+  return getMemory();
+}
+
+void VoidMemBlock::setMemory(const void *data, int datalen, int offsetby) {
+  if (datalen <= 0) return;
+  ASSERT(mem != NULL);
+  ASSERT(offsetby >= 0);
+  char *ptr = reinterpret_cast<char *>(mem);
+  ASSERT(ptr + offsetby + datalen <= ptr + size);
+  MEMCPY(ptr + offsetby, data, datalen);
+}
+
+int VoidMemBlock::getSize() const {
+  return size;
+}
+
+int VoidMemBlock::isMine(void *ptr) {
+  return (ptr >= mem && ptr < (char*)mem + size);
+}
+
+void VoidMemBlock::zeroMemory() {
+  if (mem == NULL || size < 1) return;
+  MEMZERO(mem, size);
+}