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Extension.h
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Extension.h
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/******************************************************************************
* Spine Runtimes License Agreement
* Last updated July 28, 2023. Replaces all prior versions.
*
* Copyright (c) 2013-2023, Esoteric Software LLC
*
* Integration of the Spine Runtimes into software or otherwise creating
* derivative works of the Spine Runtimes is permitted under the terms and
* conditions of Section 2 of the Spine Editor License Agreement:
* http://esotericsoftware.com/spine-editor-license
*
* Otherwise, it is permitted to integrate the Spine Runtimes into software or
* otherwise create derivative works of the Spine Runtimes (collectively,
* "Products"), provided that each user of the Products must obtain their own
* Spine Editor license and redistribution of the Products in any form must
* include this license and copyright notice.
*
* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THE
* SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef Spine_Extension_h
#define Spine_Extension_h
#include <stdlib.h>
#include <spine/dll.h>
#define SP_UNUSED(x) (void)(x)
namespace spine {
class String;
class SP_API SpineExtension {
public:
template<typename T>
static T *alloc(size_t num, const char *file, int line) {
return (T *) getInstance()->_alloc(sizeof(T) * num, file, line);
}
template<typename T>
static T *calloc(size_t num, const char *file, int line) {
return (T *) getInstance()->_calloc(sizeof(T) * num, file, line);
}
template<typename T>
static T *realloc(T *ptr, size_t num, const char *file, int line) {
return (T *) getInstance()->_realloc(ptr, sizeof(T) * num, file, line);
}
template<typename T>
static void free(T *ptr, const char *file, int line) {
getInstance()->_free((void *) ptr, file, line);
}
template<typename T>
static void beforeFree(T *ptr) {
getInstance()->_beforeFree((void *) ptr);
}
static char *readFile(const String &path, int *length) {
return getInstance()->_readFile(path, length);
}
static void setInstance(SpineExtension *inSpineExtension);
static SpineExtension *getInstance();
virtual ~SpineExtension();
/// Implement this function to use your own memory allocator
virtual void *_alloc(size_t size, const char *file, int line) = 0;
virtual void *_calloc(size_t size, const char *file, int line) = 0;
virtual void *_realloc(void *ptr, size_t size, const char *file, int line) = 0;
/// If you provide a spineAllocFunc, you should also provide a spineFreeFunc
virtual void _free(void *mem, const char *file, int line) = 0;
virtual char *_readFile(const String &path, int *length) = 0;
virtual void _beforeFree(void *ptr) { SP_UNUSED(ptr); }
protected:
SpineExtension();
private:
static SpineExtension *_instance;
};
class SP_API DefaultSpineExtension : public SpineExtension {
public:
DefaultSpineExtension();
virtual ~DefaultSpineExtension();
protected:
virtual void *_alloc(size_t size, const char *file, int line) override;
virtual void *_calloc(size_t size, const char *file, int line) override;
virtual void *_realloc(void *ptr, size_t size, const char *file, int line) override;
virtual void _free(void *mem, const char *file, int line) override;
virtual char *_readFile(const String &path, int *length) override;
};
// This function is to be implemented by engine specific runtimes to provide
// the default extension for that engine. It is called the first time
// SpineExtension::getInstance() is called, when no instance has been set
// yet.
extern SpineExtension *getDefaultExtension();
}
#endif /* Spine_Extension_h */