implement invert instruction

crates/executor/src/debug/instructions/mod.rs

@@ -1,4 +1,4 @@
-pub mod Read {
+pub mod read {
     use image::{io::Reader as ImageReader, DynamicImage};
     use rpl::instructions::read::{Read, SourceType};
 
@@ -12,7 +12,7 @@ pub mod Read {
     }
 }
 
-pub mod Write {
+pub mod write {
     use image::{io::Reader as ImageReader, DynamicImage, ImageFormat};
     use rpl::instructions::write::{TargetFormat, TargetType, Write};
 
@@ -28,3 +28,14 @@ pub mod Write {
         );
     }
 }
+
+pub mod filters {
+    pub mod invert {
+        use image::DynamicImage;
+
+        pub fn invert(mut input_data: DynamicImage) -> DynamicImage {
+            input_data.invert();
+            input_data
+        }
+    }
+}

crates/executor/src/debug/mod.rs

@@ -1,19 +1,18 @@
+use rpl::instructions::{FilterInstruction, Instruction};
+
 use crate::{value::DynamicValue, Executor};
 mod instructions;
 
 pub struct DebugExecutor;
 
 impl Executor for DebugExecutor {
-    fn execute(
-        instruction: rpl::instructions::Instruction,
-        input: Option<DynamicValue>,
-    ) -> Option<DynamicValue> {
+    fn execute(instruction: Instruction, input: Option<DynamicValue>) -> Option<DynamicValue> {
         match instruction {
-            rpl::instructions::Instruction::Read(read_instruction) => Some(DynamicValue::Image(
-                instructions::Read::read(read_instruction),
+            Instruction::Read(read_instruction) => Some(DynamicValue::Image(
+                instructions::read::read(read_instruction),
             )),
-            rpl::instructions::Instruction::Write(write_instruction) => {
-                instructions::Write::write(
+            Instruction::Write(write_instruction) => {
+                instructions::write::write(
                     write_instruction,
                     match input {
                         Some(DynamicValue::Image(img)) => img,
@@ -22,9 +21,17 @@ impl Executor for DebugExecutor {
                 );
                 None
             }
-            rpl::instructions::Instruction::Math(_) => todo!(),
-            rpl::instructions::Instruction::Blend(_) => todo!(),
-            rpl::instructions::Instruction::Noise(_) => todo!(),
+            Instruction::Math(_) => todo!(),
+            Instruction::Blend(_) => todo!(),
+            Instruction::Noise(_) => todo!(),
+            Instruction::Filter(filter_instruction) => match filter_instruction {
+                FilterInstruction::Invert => Some(DynamicValue::Image(
+                    instructions::filters::invert::invert(match input {
+                        Some(DynamicValue::Image(img)) => img,
+                        _ => panic!("invalid value type for invert"),
+                    }),
+                )),
+            },
         }
     }
 }

crates/rpl/src/instructions/mod.rs

@@ -10,6 +10,7 @@ pub enum Instruction {
     Math(MathInstruction),
     Blend(BlendInstruction),
     Noise(NoiseInstruction),
+    Filter(FilterInstruction),
 }
 
 #[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
@@ -39,3 +40,8 @@ pub enum NoiseInstruction {
     Simplex,
     Voronoi,
 }
+
+#[derive(Serialize, Deserialize, PartialEq, Eq, Debug)]
+pub enum FilterInstruction {
+    Invert,
+}

testfiles/invert.rpl

@@ -0,0 +1,13 @@
+(
+	[
+		Read((
+			source: File("/home/jade/example/file.png"),
+			format: Png
+		)),
+		Filter(Invert),
+		Write((
+			target: File("/home/jade/example/inverted.jpg"),
+			format: Jpeg
+		))
+	]
+)