Use the current usize suffix.

Author: Ms2ger

src/lib.rs

@@ -144,9 +144,9 @@ pub fn load_png_from_memory(image: &[u8]) -> Result<Image,String> {
         let (color_type, pixel_width) = match (updated_color_type as c_int, updated_bit_depth) {
             (ffi::COLOR_TYPE_RGB, 8) |
             (ffi::COLOR_TYPE_RGBA, 8) |
-            (ffi::COLOR_TYPE_PALETTE, 8) => (PixelsByColorType::RGBA8 as fn(Vec<u8>) -> PixelsByColorType, 4us),
-            (ffi::COLOR_TYPE_GRAY, 8) => (PixelsByColorType::K8 as fn(Vec<u8>) -> PixelsByColorType, 1us),
-            (ffi::COLOR_TYPE_GA, 8) => (PixelsByColorType::KA8 as fn(Vec<u8>) -> PixelsByColorType, 2us),
+            (ffi::COLOR_TYPE_PALETTE, 8) => (PixelsByColorType::RGBA8 as fn(Vec<u8>) -> PixelsByColorType, 4usize),
+            (ffi::COLOR_TYPE_GRAY, 8) => (PixelsByColorType::K8 as fn(Vec<u8>) -> PixelsByColorType, 1usize),
+            (ffi::COLOR_TYPE_GA, 8) => (PixelsByColorType::KA8 as fn(Vec<u8>) -> PixelsByColorType, 2usize),
             _ => panic!("color type not supported"),
         };