mirror of https://github.com/axmolengine/axmol.git
129 lines
4.1 KiB
C
129 lines
4.1 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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#include <spine/extension.h>
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#include <stdio.h>
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float _spInternalRandom () {
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return rand() / (float)RAND_MAX;
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}
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static void* (*mallocFunc) (size_t size) = malloc;
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static void* (*reallocFunc) (void* ptr, size_t size) = realloc;
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static void* (*debugMallocFunc) (size_t size, const char* file, int line) = NULL;
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static void (*freeFunc) (void* ptr) = free;
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static float (*randomFunc) () = _spInternalRandom;
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void* _spMalloc (size_t size, const char* file, int line) {
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if(debugMallocFunc)
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return debugMallocFunc(size, file, line);
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return mallocFunc(size);
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}
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void* _spCalloc (size_t num, size_t size, const char* file, int line) {
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void* ptr = _spMalloc(num * size, file, line);
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if (ptr) memset(ptr, 0, num * size);
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return ptr;
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}
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void* _spRealloc(void* ptr, size_t size) {
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return reallocFunc(ptr, size);
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}
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void _spFree (void* ptr) {
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freeFunc(ptr);
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}
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float _spRandom () {
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return randomFunc();
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}
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void _spSetDebugMalloc(void* (*malloc) (size_t size, const char* file, int line)) {
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debugMallocFunc = malloc;
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}
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void _spSetMalloc (void* (*malloc) (size_t size)) {
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mallocFunc = malloc;
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}
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void _spSetRealloc (void* (*realloc) (void* ptr, size_t size)) {
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reallocFunc = realloc;
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}
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void _spSetFree (void (*free) (void* ptr)) {
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freeFunc = free;
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}
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void _spSetRandom (float (*random) ()) {
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randomFunc = random;
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}
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char* _spReadFile (const char* path, int* length) {
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char *data;
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FILE *file = fopen(path, "rb");
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if (!file) return 0;
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fseek(file, 0, SEEK_END);
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*length = (int)ftell(file);
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fseek(file, 0, SEEK_SET);
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data = MALLOC(char, *length);
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fread(data, 1, *length, file);
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fclose(file);
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return data;
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}
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float _spMath_random(float min, float max) {
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return min + (max - min) * _spRandom();
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}
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float _spMath_randomTriangular(float min, float max) {
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return _spMath_randomTriangularWith(min, max, (min + max) * 0.5f);
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}
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float _spMath_randomTriangularWith(float min, float max, float mode) {
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float u = _spRandom();
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float d = max - min;
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if (u <= (mode - min) / d) return min + SQRT(u * d * (mode - min));
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return max - SQRT((1 - u) * d * (max - mode));
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}
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float _spMath_interpolate(float (*apply) (float a), float start, float end, float a) {
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return start + (end - start) * apply(a);
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}
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float _spMath_pow2_apply(float a) {
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if (a <= 0.5) return POW(a * 2, 2) / 2;
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return POW((a - 1) * 2, 2) / -2 + 1;
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}
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float _spMath_pow2out_apply(float a) {
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return POW(a - 1, 2) * -1 + 1;
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}
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