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cocos2d-x/cocos/editor-support/spine/Extension.h

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+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated January 1, 2020. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2020, 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);
+	}
+
+	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;
+
+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);
+
+	virtual void *_calloc(size_t size, const char *file, int line);
+
+	virtual void *_realloc(void *ptr, size_t size, const char *file, int line);
+
+	virtual void _free(void *mem, const char *file, int line);
+
+	virtual char *_readFile(const String &path, int *length);
+};
+
+// 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 */