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#include <cstring>
#include <vips/vips.h>
#ifdef __GNUC__
#define PACK(...) __VA_ARGS__ __attribute__((__packed__))
#elif defined(_MSC_VER)
#define PACK(...) __pragma(pack(push, 1)) __VA_ARGS__ __pragma(pack(pop))
#else
#define PACK(...) __VA_ARGS__
#endif
PACK(struct mosaic_opt {
guint8 dir : 1;
guint16 xref;
guint16 yref;
guint16 xsec;
guint16 ysec;
});
extern "C" int
LLVMFuzzerInitialize(int *argc, char ***argv)
{
if (VIPS_INIT(*argv[0]))
return -1;
vips_concurrency_set(1);
return 0;
}
extern "C" int
LLVMFuzzerTestOneInput(const guint8 *data, size_t size)
{
VipsImage *ref, *sec, *out;
mosaic_opt opt = {};
double d;
if (size < sizeof(mosaic_opt))
return 0;
/* The tail of `data` is treated as mosaic configuration
*/
size -= sizeof(mosaic_opt);
memcpy(&opt, data + size, sizeof(mosaic_opt));
/* Remainder of input is the image
*/
if (!(ref = vips_image_new_from_buffer(data, size, "", nullptr)))
return 0;
if (ref->Xsize > 100 ||
ref->Ysize > 100 ||
ref->Bands > 4) {
g_object_unref(ref);
return 0;
}
if (vips_rot180(ref, &sec, nullptr)) {
g_object_unref(ref);
return 0;
}
if (vips_mosaic(ref, sec, &out, (VipsDirection) opt.dir,
opt.xref, opt.yref, opt.xsec, opt.ysec, nullptr)) {
g_object_unref(sec);
g_object_unref(ref);
return 0;
}
vips_max(out, &d, nullptr);
g_object_unref(out);
g_object_unref(sec);
g_object_unref(ref);
return 0;
}
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