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#include "img.ldr.tga.inc.c"
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#ifdef PNG_LIBPNG_VER_STRING
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#include "img.ldr.png.inc.c"
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#endif
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typedef int (*ImageLoadFunc)(const char *path, int *outWidth, int *outHeight, unsigned char **pixels);
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typedef int (*ImageSaveFunc)(const char *path, int width, int height, const unsigned char *pixels);
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int checkExt(const char *path, const char *ext) {
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int lp = strlen(path);
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int le = strlen(ext);
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if (lp <= le) return FALSE;
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if (path[lp-le-1] != '.') return FALSE;
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for(const char *a = path+lp-le, *b = ext; *b; ++a, ++b)
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if (tolower(*a) != tolower(*b)) return FALSE;
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return TRUE;
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}
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int imageLoadAuto(const char *path, int *outWidth, int *outHeight, unsigned char **pixels) {
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struct {
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const char *ext;
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ImageLoadFunc func;
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} formats[] = {
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{ "tga", &imageLoadTga },
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#if defined(HELI_HELIANTUS_H)
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{ "png", &imageLoad },
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#elif defined(PNG_LIBPNG_VER_STRING)
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{ "png", &imageLoadPng },
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#endif
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};
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int cnt = sizeof(formats)/sizeof(*formats);
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for(int i = 0; i < cnt; ++i)
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if (checkExt(path, formats[i].ext))
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return formats[i].func(path, outWidth, outHeight, pixels);
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fprintf(stderr, "Cannot load this image format (supported formats:");
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for(int i = 0; i < cnt; ++i)
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fprintf(stderr, " %s", formats[i].ext);
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fprintf(stderr, "): %s\n", path);
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fflush(stderr);
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return FALSE;
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}
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int imageSaveAuto(const char *path, int width, int height, const unsigned char *pixels) {
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struct {
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const char *ext;
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ImageSaveFunc func;
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} formats[] = {
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{ "tga", &imageSaveTga },
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#if defined(HELI_HELIANTUS_H)
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{ "png", (ImageSaveFunc)&imageSave },
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#elif defined(PNG_LIBPNG_VER_STRING)
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{ "png", &imageSavePng },
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#endif
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};
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int cnt = sizeof(formats)/sizeof(*formats);
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for(int i = 0; i < cnt; ++i)
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if (checkExt(path, formats[i].ext))
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return formats[i].func(path, width, height, pixels);
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fprintf(stderr, "Cannot save this image format (supported formats:");
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for(int i = 0; i < cnt; ++i)
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fprintf(stderr, " %s", formats[i].ext);
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fprintf(stderr, "): %s\n", path);
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fflush(stderr);
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return FALSE;
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}
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int imgLoad(Img *img, const char *path) {
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imgDestroy(img);
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int w, h;
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unsigned char *data;
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if (!imageLoadAuto(path, &w, &h, &data))
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{ free(data); return FALSE; }
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imgFromInt(img, w, h, data);
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free(data);
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return TRUE;
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}
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int imgSave(Img *img, const char *path) {
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unsigned char *data = imgToInt(img);
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if (!imageSaveAuto(path, img->w, img->h, data))
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{ free(data); return FALSE; }
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free(data);
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return TRUE;
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}
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