From efcd9877d8e0704fd4b1e49f4f9d54e6f913d0e4 Mon Sep 17 00:00:00 2001
From: Alex Janka <alex@alexjanka.com>
Date: Sun, 19 Mar 2023 10:39:57 +1100
Subject: [PATCH] type params for camera work

---
 gb-vst/src/lib.rs      |  6 +++---
 lib/src/connect/mod.rs | 38 ++++++++++++++++++++++++++++++++++++--
 lib/src/lib.rs         | 21 ++++++++++++++++-----
 3 files changed, 55 insertions(+), 10 deletions(-)

diff --git a/gb-vst/src/lib.rs b/gb-vst/src/lib.rs
index 73acde5..16f60df 100644
--- a/gb-vst/src/lib.rs
+++ b/gb-vst/src/lib.rs
@@ -2,8 +2,8 @@ use async_ringbuf::AsyncHeapConsumer;
 use futures::executor;
 use gb_emu_lib::{
     connect::{
-        AudioOutput, DownsampleType, EmulatorMessage, EmulatorOptions, JoypadButtons, RomFile,
-        SerialTarget,
+        AudioOutput, DownsampleType, EmulatorMessage, EmulatorOptions, JoypadButtons, NoCamera,
+        RomFile, SerialTarget,
     },
     EmulatorCore,
 };
@@ -52,7 +52,7 @@ struct EmuParams {
 struct EmuVars {
     rx: AsyncHeapConsumer<[f32; 2]>,
     sender: Sender<EmulatorMessage>,
-    emulator_core: EmulatorCore<[u8; 4], EmulatorRenderer>,
+    emulator_core: EmulatorCore<[u8; 4], EmulatorRenderer, NoCamera>,
     serial_tx: Sender<u8>,
 }
 
diff --git a/lib/src/connect/mod.rs b/lib/src/connect/mod.rs
index 640ce64..0d90a29 100644
--- a/lib/src/connect/mod.rs
+++ b/lib/src/connect/mod.rs
@@ -70,17 +70,27 @@ pub trait PocketCamera {
     fn capture_greyscale(&mut self) -> [u8; 128 * 128];
 }
 
+pub struct NoCamera;
+
+impl PocketCamera for NoCamera {
+    fn capture_greyscale(&mut self) -> [u8; 128 * 128] {
+        [0; 128 * 128]
+    }
+}
+
 #[non_exhaustive]
-pub struct EmulatorOptions<ColourFormat, R>
+pub struct EmulatorOptions<ColourFormat, R, C>
 where
     ColourFormat: From<Colour> + Clone,
     R: Renderer<ColourFormat>,
+    C: PocketCamera,
 {
     pub(crate) window: R,
     pub(crate) tile_window: Option<R>,
     pub(crate) rom: RomFile,
     pub(crate) output: AudioOutput,
     pub(crate) save_path: Option<String>,
+    pub(crate) camera: C,
     pub(crate) no_save: bool,
     pub(crate) bootrom: Option<RomFile>,
     pub(crate) serial_target: SerialTarget,
@@ -88,7 +98,7 @@ where
     spooky: PhantomData<ColourFormat>,
 }
 
-impl<ColourFormat, R> EmulatorOptions<ColourFormat, R>
+impl<ColourFormat, R> EmulatorOptions<ColourFormat, R, NoCamera>
 where
     ColourFormat: From<Colour> + Clone,
     R: Renderer<ColourFormat>,
@@ -100,6 +110,30 @@ where
             rom,
             output,
             save_path: None,
+            camera: NoCamera,
+            no_save: false,
+            bootrom: None,
+            serial_target: SerialTarget::None,
+            verbose: false,
+            spooky: PhantomData,
+        }
+    }
+}
+
+impl<ColourFormat, R, C> EmulatorOptions<ColourFormat, R, C>
+where
+    ColourFormat: From<Colour> + Clone,
+    R: Renderer<ColourFormat>,
+    C: PocketCamera,
+{
+    pub fn new_with_camera(window: R, rom: RomFile, output: AudioOutput, camera: C) -> Self {
+        Self {
+            window,
+            tile_window: None,
+            rom,
+            output,
+            save_path: None,
+            camera,
             no_save: false,
             bootrom: None,
             serial_target: SerialTarget::None,
diff --git a/lib/src/lib.rs b/lib/src/lib.rs
index 4877029..11fcd1f 100644
--- a/lib/src/lib.rs
+++ b/lib/src/lib.rs
@@ -1,7 +1,9 @@
 #![feature(exclusive_range_pattern, let_chains, bigint_helper_methods)]
 
 use crate::{processor::memory::Memory, util::pause};
-use connect::{AudioOutput, EmulatorMessage, EmulatorOptions, Renderer, RomFile, SerialTarget};
+use connect::{
+    AudioOutput, EmulatorMessage, EmulatorOptions, PocketCamera, Renderer, RomFile, SerialTarget,
+};
 use once_cell::sync::OnceCell;
 use processor::{
     memory::{mmio::gpu::Colour, Rom},
@@ -10,6 +12,7 @@ use processor::{
 use std::{
     fs::{self},
     io::{stdout, Write},
+    marker::PhantomData,
     path::PathBuf,
     process::exit,
     str::FromStr,
@@ -30,23 +33,26 @@ static VERBOSE: OnceCell<bool> = OnceCell::new();
 pub const WIDTH: usize = 160;
 pub const HEIGHT: usize = 144;
 
-pub struct EmulatorCore<ColourFormat, R>
+pub struct EmulatorCore<ColourFormat, R, C>
 where
     ColourFormat: From<Colour> + Clone,
     R: Renderer<ColourFormat>,
+    C: PocketCamera,
 {
     receiver: Receiver<EmulatorMessage>,
     cpu: Cpu<ColourFormat, R>,
+    spooky: PhantomData<C>,
 }
 
-impl<ColourFormat, R> EmulatorCore<ColourFormat, R>
+impl<ColourFormat, R, C> EmulatorCore<ColourFormat, R, C>
 where
     ColourFormat: From<Colour> + Clone,
     R: Renderer<ColourFormat>,
+    C: PocketCamera,
 {
     pub fn init(
         receiver: Receiver<EmulatorMessage>,
-        mut options: EmulatorOptions<ColourFormat, R>,
+        mut options: EmulatorOptions<ColourFormat, R, C>,
     ) -> Self {
         if options.verbose {
             VERBOSE.set(true).unwrap();
@@ -109,7 +115,11 @@ where
     }
 
     fn new(receiver: Receiver<EmulatorMessage>, cpu: Cpu<ColourFormat, R>) -> Self {
-        Self { receiver, cpu }
+        Self {
+            receiver,
+            cpu,
+            spooky: PhantomData,
+        }
     }
 
     pub fn replace_output(&mut self, new: AudioOutput) {
@@ -190,6 +200,7 @@ where
         Self {
             receiver,
             cpu: Cpu::from_save_state(state, data, window, output, serial_target),
+            spooky: PhantomData,
         }
     }
 }