// First, let me describe what's the problem: libpng uses jmp_buf in
// its png_struct structure. Unfortunately, this structure is
// compiler-specific and may vary in size, so if you use libpng compiled
-// as DLL with another compiler than the main executable, it may not work
-// (this is for example the case with wxMGL port and SciTech MGL library
-// that provides custom runtime-loadable libpng implementation with jmpbuf
-// disabled altogether). Luckily, it is still possible to use setjmp() &
-// longjmp() as long as the structure is not part of png_struct.
+// as DLL with another compiler than the main executable, it may not work.
+// Luckily, it is still possible to use setjmp() & longjmp() as long as the
+// structure is not part of png_struct.
//
// Sadly, there's no clean way to attach user-defined data to png_struct.
// There is only one customizable place, png_struct.io_ptr, which is meant
for (i = 0; i < height; i++)
{
- if ((lines[i] = (unsigned char *)malloc( (size_t)(width * (sizeof(unsigned char) * 4)))) == NULL)
+ if ((lines[i] = (unsigned char *)malloc( (size_t)(width * 4))) == NULL)
goto error;
}