[gpu] Implement scaling

src/misc/emulator_error.rs

@@ -1,5 +1,7 @@
 use std::array::TryFromSliceError;
 use std::fmt::Debug;
+use std::io::Error;
+use crate::misc::emulator_error::EmulatorError::EmulatorIOError;
 
 #[derive(Debug, Copy, Clone)]
 pub enum DeviceType {
@@ -13,11 +15,12 @@ pub enum DeviceType {
     GRAPHICS,
 }
 
-#[derive(Debug, Clone)]
+#[derive(Debug)]
 pub enum EmulatorError {
     AllocationFailure(DeviceType, &'static str),
     UnreachableMemory(DeviceType, u32),
     InvalidColor(u8),
+    EmulatorIOError(Error),
     OtherError(String)
 }
 
@@ -27,6 +30,12 @@ impl From<TryFromSliceError> for EmulatorError{
     }
 }
 
+impl From<std::io::Error> for EmulatorError{
+    fn from(value: Error) -> Self {
+        EmulatorIOError(value)
+    }
+}
+