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- // VirtualDub - Video processing and capture application
- // System library component
- // Copyright (C) 1998-2004 Avery Lee, All Rights Reserved.
- //
- // Beginning with 1.6.0, the VirtualDub system library is licensed
- // differently than the remainder of VirtualDub. This particular file is
- // thus licensed as follows (the "zlib" license):
- //
- // This software is provided 'as-is', without any express or implied
- // warranty. In no event will the authors be held liable for any
- // damages arising from the use of this software.
- //
- // Permission is granted to anyone to use this software for any purpose,
- // including commercial applications, and to alter it and redistribute it
- // freely, subject to the following restrictions:
- //
- // 1. The origin of this software must not be misrepresented; you must
- // not claim that you wrote the original software. If you use this
- // software in a product, an acknowledgment in the product
- // documentation would be appreciated but is not required.
- // 2. Altered source versions must be plainly marked as such, and must
- // not be misrepresented as being the original software.
- // 3. This notice may not be removed or altered from any source
- // distribution.
-
- #ifndef f_VD2_SYSTEM_VDALLOC_H
- #define f_VD2_SYSTEM_VDALLOC_H
-
- #ifdef _MSC_VER
- #pragma once
- #endif
-
- #include <stdlib.h>
-
- // Why don't I use STL auto_ptr? Two reasons. First, auto_ptr has
- // the overhead of an ownership flag, and second, auto_ptr can't
- // be used with malloc() blocks. So think of these as auto_ptr
- // objects, but not quite....
-
- #pragma warning(push)
- #pragma warning(disable: 4284) // operator-> must return pointer to UDT
-
- class vdautoblockptr {
- protected:
- void *ptr;
-
- public:
- explicit vdautoblockptr(void *p = 0) : ptr(p) {}
- ~vdautoblockptr() { free(ptr); }
-
- vdautoblockptr& operator=(void *src) { free(ptr); ptr = src; return *this; }
-
- operator void*() const { return ptr; }
-
- vdautoblockptr& from(vdautoblockptr& src) { free(ptr); ptr=src.ptr; src.ptr=0; }
- void *get() const { return ptr; }
- void *release() { void *v = ptr; ptr = NULL; return v; }
- };
-
- template<class T> class vdautoptr2 {
- protected:
- T *ptr;
-
- public:
- explicit vdautoptr2(T *p = 0) : ptr(p) {}
- ~vdautoptr2() { free((void *)ptr); }
-
- vdautoptr2<T>& operator=(T *src) { free((void *)ptr); ptr = src; return *this; }
-
- operator T*() const { return ptr; }
- T& operator*() const { return *ptr; }
- T *operator->() const { return ptr; }
-
- vdautoptr2<T>& from(vdautoptr2<T>& src) { free((void *)ptr); ptr=src.ptr; src.ptr=0; }
- T *get() const { return ptr; }
- T *release() { T *v = ptr; ptr = NULL; return v; }
- };
-
- template<class T> class vdautoptr {
- protected:
- T *ptr;
-
- public:
- explicit vdautoptr(T *p = 0) : ptr(p) {}
- ~vdautoptr() { delete ptr; }
-
- vdautoptr<T>& operator=(T *src) { delete ptr; ptr = src; return *this; }
-
- operator T*() const { return ptr; }
- T& operator*() const { return *ptr; }
- T *operator->() const { return ptr; }
-
- vdautoptr<T>& from(vdautoptr<T>& src) { delete ptr; ptr=src.ptr; src.ptr=0; }
- T *get() const { return ptr; }
- T *release() { T *v = ptr; ptr = NULL; return v; }
-
- void swap(vdautoptr<T>& other) {
- T *p = other.ptr;
- other.ptr = ptr;
- ptr = p;
- }
- };
-
- template<class T> class vdautoarrayptr {
- protected:
- T *ptr;
-
- public:
- explicit vdautoarrayptr(T *p = 0) : ptr(p) {}
- ~vdautoarrayptr() { delete[] ptr; }
-
- vdautoarrayptr<T>& operator=(T *src) { delete[] ptr; ptr = src; return *this; }
-
- T& operator[](int offset) const { return ptr[offset]; }
-
- vdautoarrayptr<T>& from(vdautoarrayptr<T>& src) { delete[] ptr; ptr=src.ptr; src.ptr=0; }
- T *get() const { return ptr; }
- T *release() { T *v = ptr; ptr = NULL; return v; }
- };
-
- #pragma warning(pop)
-
- #endif
-