mirror of https://github.com/axmolengine/axmol.git
319 lines
11 KiB
C
319 lines
11 KiB
C
/******************************************************************************
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* Spine Runtimes Software License v2.5
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*
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* Copyright (c) 2013-2016, Esoteric Software
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* All rights reserved.
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*
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* You are granted a perpetual, non-exclusive, non-sublicensable, and
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* non-transferable license to use, install, execute, and perform the Spine
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* Runtimes software and derivative works solely for personal or internal
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* use. Without the written permission of Esoteric Software (see Section 2 of
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* the Spine Software License Agreement), you may not (a) modify, translate,
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* adapt, or develop new applications using the Spine Runtimes or otherwise
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* create derivative works or improvements of the Spine Runtimes or (b) remove,
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* delete, alter, or obscure any trademarks or any copyright, trademark, patent,
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* or other intellectual property or proprietary rights notices on or in the
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* Software, including any copy thereof. Redistributions in binary or source
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* form must include this license and terms.
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*
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* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
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* USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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/*
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Implementation notes:
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- An OOP style is used where each "class" is made up of a struct and a number of functions prefixed with the struct name.
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- struct fields that are const are readonly. Either they are set in a create function and can never be changed, or they can only
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be changed by calling a function.
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- Inheritance is done using a struct field named "super" as the first field, allowing the struct to be cast to its "super class".
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This works because a pointer to a struct is guaranteed to be a pointer to the first struct field.
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- Classes intended for inheritance provide init/deinit functions which subclasses must call in their create/dispose functions.
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- Polymorphism is done by a base class providing function pointers in its init function. The public API delegates to these
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function pointers.
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- Subclasses do not provide a dispose function, instead the base class' dispose function should be used, which will delegate to
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a dispose function pointer.
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- Classes not designed for inheritance cannot be extended because they may use an internal subclass to hide private data and don't
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expose function pointers.
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- The public API hides implementation details, such as init/deinit functions. An internal API is exposed by extension.h to allow
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classes to be extended. Internal functions begin with underscore (_).
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- OOP in C tends to lose type safety. Macros for casting are provided in extension.h to give context for why a cast is being done.
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- If SPINE_SHORT_NAMES is defined, the "sp" prefix for all class names is optional.
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*/
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#ifndef SPINE_EXTENSION_H_
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#define SPINE_EXTENSION_H_
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/* All allocation uses these. */
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#define MALLOC(TYPE,COUNT) ((TYPE*)_spMalloc(sizeof(TYPE) * (COUNT), __FILE__, __LINE__))
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#define CALLOC(TYPE,COUNT) ((TYPE*)_spCalloc(COUNT, sizeof(TYPE), __FILE__, __LINE__))
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#define REALLOC(PTR,TYPE,COUNT) ((TYPE*)_spRealloc(PTR, sizeof(TYPE) * (COUNT)))
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#define NEW(TYPE) CALLOC(TYPE,1)
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/* Gets the direct super class. Type safe. */
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#define SUPER(VALUE) (&VALUE->super)
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/* Cast to a super class. Not type safe, use with care. Prefer SUPER() where possible. */
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#define SUPER_CAST(TYPE,VALUE) ((TYPE*)VALUE)
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/* Cast to a sub class. Not type safe, use with care. */
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#define SUB_CAST(TYPE,VALUE) ((TYPE*)VALUE)
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/* Casts away const. Can be used as an lvalue. Not type safe, use with care. */
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#define CONST_CAST(TYPE,VALUE) (*(TYPE*)&VALUE)
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/* Gets the vtable for the specified type. Not type safe, use with care. */
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#define VTABLE(TYPE,VALUE) ((_##TYPE##Vtable*)((TYPE*)VALUE)->vtable)
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/* Frees memory. Can be used on const types. */
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#define FREE(VALUE) _spFree((void*)VALUE)
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/* Allocates a new char[], assigns it to TO, and copies FROM to it. Can be used on const types. */
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#define MALLOC_STR(TO,FROM) strcpy(CONST_CAST(char*, TO) = (char*)MALLOC(char, strlen(FROM) + 1), FROM)
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#define PI 3.1415926535897932385f
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#define PI2 (PI * 2)
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#define DEG_RAD (PI / 180)
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#define RAD_DEG (180 / PI)
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#define ABS(A) ((A) < 0? -(A): (A))
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#define SIGNUM(A) ((A) < 0? -1: (A) > 0 ? 1 : 0)
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#ifdef __STDC_VERSION__
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#define FMOD(A,B) fmodf(A, B)
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#define ATAN2(A,B) atan2f(A, B)
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#define SIN(A) sinf(A)
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#define COS(A) cosf(A)
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#define SQRT(A) sqrtf(A)
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#define ACOS(A) acosf(A)
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#define POW(A,B) pow(A, B)
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#else
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#define FMOD(A,B) (float)fmod(A, B)
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#define ATAN2(A,B) (float)atan2(A, B)
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#define COS(A) (float)cos(A)
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#define SIN(A) (float)sin(A)
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#define SQRT(A) (float)sqrt(A)
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#define ACOS(A) (float)acos(A)
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#define POW(A,B) (float)pow(A, B)
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#endif
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#define SIN_DEG(A) SIN((A) * DEG_RAD)
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#define COS_DEG(A) COS((A) * DEG_RAD)
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#define CLAMP(x, min, max) ((x) < (min) ? (min) : ((x) > (max) ? (max) : (x)))
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#ifndef MIN
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#define MIN(x, y) ((x) < (y) ? (x) : (y))
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#endif
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#ifndef MAX
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#define MAX(x, y) ((x) > (y) ? (x) : (y))
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#endif
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#define UNUSED(x) (void)(x)
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <spine/Skeleton.h>
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#include <spine/Animation.h>
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#include <spine/Atlas.h>
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#include <spine/AttachmentLoader.h>
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#include <spine/VertexAttachment.h>
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#include <spine/RegionAttachment.h>
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#include <spine/MeshAttachment.h>
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#include <spine/BoundingBoxAttachment.h>
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#include <spine/ClippingAttachment.h>
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#include <spine/PathAttachment.h>
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#include <spine/PointAttachment.h>
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#include <spine/AnimationState.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Functions that must be implemented:
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*/
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void _spAtlasPage_createTexture (spAtlasPage* self, const char* path);
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void _spAtlasPage_disposeTexture (spAtlasPage* self);
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char* _spUtil_readFile (const char* path, int* length);
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#ifdef SPINE_SHORT_NAMES
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#define _AtlasPage_createTexture(...) _spAtlasPage_createTexture(__VA_ARGS__)
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#define _AtlasPage_disposeTexture(...) _spAtlasPage_disposeTexture(__VA_ARGS__)
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#define _Util_readFile(...) _spUtil_readFile(__VA_ARGS__)
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#endif
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/*
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* Internal API available for extension:
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*/
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void* _spMalloc (size_t size, const char* file, int line);
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void* _spCalloc (size_t num, size_t size, const char* file, int line);
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void* _spRealloc(void* ptr, size_t size);
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void _spFree (void* ptr);
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float _spRandom ();
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void _spSetMalloc (void* (*_malloc) (size_t size));
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void _spSetDebugMalloc (void* (*_malloc) (size_t size, const char* file, int line));
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void _spSetRealloc(void* (*_realloc) (void* ptr, size_t size));
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void _spSetFree (void (*_free) (void* ptr));
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void _spSetRandom(float (*_random) ());
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char* _spReadFile (const char* path, int* length);
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/*
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* Math utilities
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*/
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float _spMath_random(float min, float max);
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float _spMath_randomTriangular(float min, float max);
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float _spMath_randomTriangularWith(float min, float max, float mode);
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float _spMath_interpolate(float (*apply) (float a), float start, float end, float a);
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float _spMath_pow2_apply(float a);
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float _spMath_pow2out_apply(float a);
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/**/
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typedef union _spEventQueueItem {
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int type;
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spTrackEntry* entry;
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spEvent* event;
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} _spEventQueueItem;
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typedef struct _spAnimationState _spAnimationState;
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typedef struct _spEventQueue {
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_spAnimationState* state;
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_spEventQueueItem* objects;
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int objectsCount;
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int objectsCapacity;
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int /*boolean*/ drainDisabled;
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#ifdef __cplusplus
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_spEventQueue() :
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state(0),
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objects(0),
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objectsCount(0),
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objectsCapacity(0),
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drainDisabled(0) {
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}
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#endif
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} _spEventQueue;
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struct _spAnimationState {
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spAnimationState super;
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int eventsCount;
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spEvent** events;
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_spEventQueue* queue;
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int* propertyIDs;
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int propertyIDsCount;
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int propertyIDsCapacity;
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int /*boolean*/ animationsChanged;
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#ifdef __cplusplus
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_spAnimationState() :
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super(),
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eventsCount(0),
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events(0),
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queue(0),
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propertyIDs(0),
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propertyIDsCount(0),
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propertyIDsCapacity(0),
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animationsChanged(0) {
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}
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#endif
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};
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/**/
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/* configureAttachment and disposeAttachment may be 0. */
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void _spAttachmentLoader_init (spAttachmentLoader* self,
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void (*dispose) (spAttachmentLoader* self),
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spAttachment* (*createAttachment) (spAttachmentLoader* self, spSkin* skin, spAttachmentType type, const char* name,
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const char* path),
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void (*configureAttachment) (spAttachmentLoader* self, spAttachment*),
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void (*disposeAttachment) (spAttachmentLoader* self, spAttachment*)
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);
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void _spAttachmentLoader_deinit (spAttachmentLoader* self);
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/* Can only be called from createAttachment. */
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void _spAttachmentLoader_setError (spAttachmentLoader* self, const char* error1, const char* error2);
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void _spAttachmentLoader_setUnknownTypeError (spAttachmentLoader* self, spAttachmentType type);
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#ifdef SPINE_SHORT_NAMES
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#define _AttachmentLoader_init(...) _spAttachmentLoader_init(__VA_ARGS__)
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#define _AttachmentLoader_deinit(...) _spAttachmentLoader_deinit(__VA_ARGS__)
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#define _AttachmentLoader_setError(...) _spAttachmentLoader_setError(__VA_ARGS__)
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#define _AttachmentLoader_setUnknownTypeError(...) _spAttachmentLoader_setUnknownTypeError(__VA_ARGS__)
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#endif
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/**/
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void _spAttachment_init (spAttachment* self, const char* name, spAttachmentType type,
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void (*dispose) (spAttachment* self));
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void _spAttachment_deinit (spAttachment* self);
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void _spVertexAttachment_init (spVertexAttachment* self);
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void _spVertexAttachment_deinit (spVertexAttachment* self);
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#ifdef SPINE_SHORT_NAMES
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#define _Attachment_init(...) _spAttachment_init(__VA_ARGS__)
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#define _Attachment_deinit(...) _spAttachment_deinit(__VA_ARGS__)
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#define _VertexAttachment_deinit(...) _spVertexAttachment_deinit(__VA_ARGS__)
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#endif
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/**/
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void _spTimeline_init (spTimeline* self, spTimelineType type,
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void (*dispose) (spTimeline* self),
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void (*apply) (const spTimeline* self, spSkeleton* skeleton, float lastTime, float time, spEvent** firedEvents,
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int* eventsCount, float alpha, spMixPose pose, spMixDirection direction),
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int (*getPropertyId) (const spTimeline* self));
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void _spTimeline_deinit (spTimeline* self);
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#ifdef SPINE_SHORT_NAMES
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#define _Timeline_init(...) _spTimeline_init(__VA_ARGS__)
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#define _Timeline_deinit(...) _spTimeline_deinit(__VA_ARGS__)
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#endif
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/**/
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void _spCurveTimeline_init (spCurveTimeline* self, spTimelineType type, int framesCount,
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void (*dispose) (spTimeline* self),
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void (*apply) (const spTimeline* self, spSkeleton* skeleton, float lastTime, float time, spEvent** firedEvents, int* eventsCount, float alpha, spMixPose pose, spMixDirection direction),
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int (*getPropertyId) (const spTimeline* self));
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void _spCurveTimeline_deinit (spCurveTimeline* self);
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int _spCurveTimeline_binarySearch (float *values, int valuesLength, float target, int step);
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#ifdef SPINE_SHORT_NAMES
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#define _CurveTimeline_init(...) _spCurveTimeline_init(__VA_ARGS__)
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#define _CurveTimeline_deinit(...) _spCurveTimeline_deinit(__VA_ARGS__)
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#define _CurveTimeline_binarySearch(...) _spCurveTimeline_binarySearch(__VA_ARGS__)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPINE_EXTENSION_H_ */
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