mirror of https://github.com/axmolengine/axmol.git
360 lines
10 KiB
C
360 lines
10 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/Atlas.h>
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#include <ctype.h>
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#include <spine/extension.h>
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spAtlasPage* spAtlasPage_create(spAtlas* atlas, const char* name) {
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spAtlasPage* self = NEW(spAtlasPage);
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CONST_CAST(spAtlas*, self->atlas) = atlas;
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MALLOC_STR(self->name, name);
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return self;
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}
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void spAtlasPage_dispose(spAtlasPage* self) {
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_spAtlasPage_disposeTexture(self);
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FREE(self->name);
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FREE(self);
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}
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/**/
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spAtlasRegion* spAtlasRegion_create() {
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return NEW(spAtlasRegion);
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}
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void spAtlasRegion_dispose(spAtlasRegion* self) {
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FREE(self->name);
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FREE(self->splits);
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FREE(self->pads);
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FREE(self);
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}
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/**/
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typedef struct {
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const char* begin;
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const char* end;
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} Str;
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static void trim(Str* str) {
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while (isspace((unsigned char)*str->begin) && str->begin < str->end)
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(str->begin)++;
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if (str->begin == str->end) return;
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str->end--;
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while (isspace((unsigned char)*str->end) && str->end >= str->begin)
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str->end--;
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str->end++;
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}
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/* Tokenize string without modification. Returns 0 on failure. */
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static int readLine(const char** begin, const char* end, Str* str) {
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if (*begin == end) return 0;
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str->begin = *begin;
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/* Find next delimiter. */
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while (*begin != end && **begin != '\n')
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(*begin)++;
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str->end = *begin;
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trim(str);
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if (*begin != end) (*begin)++;
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return 1;
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}
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/* Moves str->begin past the first occurence of c. Returns 0 on failure. */
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static int beginPast(Str* str, char c) {
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const char* begin = str->begin;
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while (1) {
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char lastSkippedChar = *begin;
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if (begin == str->end) return 0;
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begin++;
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if (lastSkippedChar == c) break;
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}
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str->begin = begin;
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return 1;
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}
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/* Returns 0 on failure. */
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static int readValue(const char** begin, const char* end, Str* str) {
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readLine(begin, end, str);
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if (!beginPast(str, ':')) return 0;
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trim(str);
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return 1;
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}
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/* Returns the number of tuple values read (1, 2, 4, or 0 for failure). */
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static int readTuple(const char** begin, const char* end, Str tuple[]) {
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int i;
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Str str = { NULL, NULL };
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readLine(begin, end, &str);
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if (!beginPast(&str, ':')) return 0;
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for (i = 0; i < 3; ++i) {
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tuple[i].begin = str.begin;
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if (!beginPast(&str, ',')) break;
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tuple[i].end = str.begin - 2;
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trim(&tuple[i]);
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}
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tuple[i].begin = str.begin;
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tuple[i].end = str.end;
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trim(&tuple[i]);
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return i + 1;
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}
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static char* mallocString(Str* str) {
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int length = (int)(str->end - str->begin);
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char* string = MALLOC(char, length + 1);
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memcpy(string, str->begin, length);
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string[length] = '\0';
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return string;
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}
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static int indexOf(const char** array, int count, Str* str) {
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int length = (int)(str->end - str->begin);
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int i;
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for (i = count - 1; i >= 0; i--)
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if (strncmp(array[i], str->begin, length) == 0) return i;
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return 0;
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}
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static int equals(Str* str, const char* other) {
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return strncmp(other, str->begin, str->end - str->begin) == 0;
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}
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static int toInt(Str* str) {
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return (int)strtol(str->begin, (char**)&str->end, 10);
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}
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static spAtlas* abortAtlas(spAtlas* self) {
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spAtlas_dispose(self);
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return 0;
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}
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static const char* formatNames[] = { "", "Alpha", "Intensity", "LuminanceAlpha", "RGB565", "RGBA4444", "RGB888", "RGBA8888" };
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static const char* textureFilterNames[] = { "", "Nearest", "Linear", "MipMap", "MipMapNearestNearest", "MipMapLinearNearest",
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"MipMapNearestLinear", "MipMapLinearLinear" };
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spAtlas* spAtlas_create(const char* begin, int length, const char* dir, void* rendererObject) {
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spAtlas* self;
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int count;
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const char* end = begin + length;
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int dirLength = (int)strlen(dir);
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int needsSlash = dirLength > 0 && dir[dirLength - 1] != '/' && dir[dirLength - 1] != '\\';
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spAtlasPage *page = 0;
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spAtlasPage *lastPage = 0;
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spAtlasRegion *lastRegion = 0;
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Str str;
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Str tuple[4];
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self = NEW(spAtlas);
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self->rendererObject = rendererObject;
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while (readLine(&begin, end, &str)) {
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if (str.end - str.begin == 0) {
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page = 0;
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}
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else if (!page) {
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char* name = mallocString(&str);
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char* path = MALLOC(char, dirLength + needsSlash + strlen(name) + 1);
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memcpy(path, dir, dirLength);
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if (needsSlash) path[dirLength] = '/';
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strcpy(path + dirLength + needsSlash, name);
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page = spAtlasPage_create(self, name);
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FREE(name);
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if (lastPage)
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lastPage->next = page;
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else
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self->pages = page;
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lastPage = page;
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switch (readTuple(&begin, end, tuple)) {
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case 0:
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return abortAtlas(self);
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case 2: /* size is only optional for an atlas packed with an old TexturePacker. */
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page->width = toInt(tuple);
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page->height = toInt(tuple + 1);
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if (!readTuple(&begin, end, tuple)) return abortAtlas(self);
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}
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page->format = (spAtlasFormat)indexOf(formatNames, 8, tuple);
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if (!readTuple(&begin, end, tuple)) return abortAtlas(self);
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page->minFilter = (spAtlasFilter)indexOf(textureFilterNames, 8, tuple);
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page->magFilter = (spAtlasFilter)indexOf(textureFilterNames, 8, tuple + 1);
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if (!readValue(&begin, end, &str)) return abortAtlas(self);
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page->uWrap = SP_ATLAS_CLAMPTOEDGE;
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page->vWrap = SP_ATLAS_CLAMPTOEDGE;
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if (!equals(&str, "none")) {
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if (str.end - str.begin == 1) {
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if (*str.begin == 'x')
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page->uWrap = SP_ATLAS_REPEAT;
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else if (*str.begin == 'y')
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page->vWrap = SP_ATLAS_REPEAT;
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}
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else if (equals(&str, "xy")) {
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page->uWrap = SP_ATLAS_REPEAT;
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page->vWrap = SP_ATLAS_REPEAT;
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}
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}
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_spAtlasPage_createTexture(page, path);
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FREE(path);
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}
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else {
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spAtlasRegion *region = spAtlasRegion_create();
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if (lastRegion)
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lastRegion->next = region;
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else
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self->regions = region;
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lastRegion = region;
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region->page = page;
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region->name = mallocString(&str);
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if (!readValue(&begin, end, &str)) return abortAtlas(self);
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region->rotate = equals(&str, "true");
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if (readTuple(&begin, end, tuple) != 2) return abortAtlas(self);
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region->x = toInt(tuple);
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region->y = toInt(tuple + 1);
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if (readTuple(&begin, end, tuple) != 2) return abortAtlas(self);
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region->width = toInt(tuple);
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region->height = toInt(tuple + 1);
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region->u = region->x / (float)page->width;
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region->v = region->y / (float)page->height;
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if (region->rotate) {
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region->u2 = (region->x + region->height) / (float)page->width;
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region->v2 = (region->y + region->width) / (float)page->height;
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}
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else {
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region->u2 = (region->x + region->width) / (float)page->width;
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region->v2 = (region->y + region->height) / (float)page->height;
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}
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count = readTuple(&begin, end, tuple);
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if (!count) return abortAtlas(self);
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if (count == 4) { /* split is optional */
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region->splits = MALLOC(int, 4);
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region->splits[0] = toInt(tuple);
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region->splits[1] = toInt(tuple + 1);
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region->splits[2] = toInt(tuple + 2);
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region->splits[3] = toInt(tuple + 3);
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count = readTuple(&begin, end, tuple);
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if (!count) return abortAtlas(self);
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if (count == 4) { /* pad is optional, but only present with splits */
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region->pads = MALLOC(int, 4);
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region->pads[0] = toInt(tuple);
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region->pads[1] = toInt(tuple + 1);
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region->pads[2] = toInt(tuple + 2);
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region->pads[3] = toInt(tuple + 3);
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if (!readTuple(&begin, end, tuple)) return abortAtlas(self);
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}
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}
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region->originalWidth = toInt(tuple);
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region->originalHeight = toInt(tuple + 1);
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readTuple(&begin, end, tuple);
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region->offsetX = toInt(tuple);
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region->offsetY = toInt(tuple + 1);
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if (!readValue(&begin, end, &str)) return abortAtlas(self);
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region->index = toInt(&str);
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}
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}
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return self;
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}
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spAtlas* spAtlas_createFromFile(const char* path, void* rendererObject) {
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int dirLength;
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char *dir;
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int length;
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const char* data;
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spAtlas* atlas = 0;
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/* Get directory from atlas path. */
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const char* lastForwardSlash = strrchr(path, '/');
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const char* lastBackwardSlash = strrchr(path, '\\');
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const char* lastSlash = lastForwardSlash > lastBackwardSlash ? lastForwardSlash : lastBackwardSlash;
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if (lastSlash == path) lastSlash++; /* Never drop starting slash. */
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dirLength = (int)(lastSlash ? lastSlash - path : 0);
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dir = MALLOC(char, dirLength + 1);
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memcpy(dir, path, dirLength);
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dir[dirLength] = '\0';
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data = _spUtil_readFile(path, &length);
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if (data) atlas = spAtlas_create(data, length, dir, rendererObject);
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FREE(data);
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FREE(dir);
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return atlas;
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}
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void spAtlas_dispose(spAtlas* self) {
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spAtlasRegion* region, *nextRegion;
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spAtlasPage* page = self->pages;
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while (page) {
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spAtlasPage* nextPage = page->next;
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spAtlasPage_dispose(page);
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page = nextPage;
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}
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region = self->regions;
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while (region) {
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nextRegion = region->next;
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spAtlasRegion_dispose(region);
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region = nextRegion;
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}
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FREE(self);
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}
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spAtlasRegion* spAtlas_findRegion(const spAtlas* self, const char* name) {
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spAtlasRegion* region = self->regions;
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while (region) {
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if (strcmp(region->name, name) == 0) return region;
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region = region->next;
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}
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return 0;
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}
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