move experimental code to old/

1 files changed, 61 insertions, 0 deletions

diff --git a/old/sdl-patches/0003-audio-make-audio-callback-a-trait-instead-of-a-funct.patch b/old/sdl-patches/0003-audio-make-audio-callback-a-trait-instead-of-a-funct.patch
new file mode 100644
index 0000000..3b324b4
--- /dev/null
+++ b/old/sdl-patches/0003-audio-make-audio-callback-a-trait-instead-of-a-funct.patch
@@ -0,0 +1,61 @@
+From 733f792c6c9d6c850243e794551002358a0b74a5 Mon Sep 17 00:00:00 2001
+From: Kostya Shishkov <kostya.shishkov@gmail.com>
+Date: Wed, 27 Nov 2019 08:22:16 +0100
+Subject: [PATCH 3/4] audio: make audio callback a trait instead of a function
+
+---
+ src/sdl/audio.rs |   17 ++++++-----------
+ 1 file changed, 6 insertions(+), 11 deletions(-)
+
+diff --git a/src/sdl/audio.rs b/src/sdl/audio.rs
+index 18a140f..0c2f6cf 100644
+--- a/src/sdl/audio.rs
++++ b/src/sdl/audio.rs
+@@ -93,15 +93,16 @@ impl Channels {
+     pub fn count(self) -> c_int          { match self { Channels::Mono => 1, Channels::Stereo => 2 } }
+ }
+ 
+-pub type AudioCallback = fn(&mut [u8]);
++pub trait AudioCallback {
++    fn callback(&mut self, out: &mut [u8]);
++}
+ 
+-#[derive(Copy)]
+ pub struct DesiredAudioSpec {
+     pub freq: c_int,
+     pub format: AudioFormat,
+     pub channels: Channels,
+     pub samples: u16,
+-    pub callback: AudioCallback,
++    pub callback: Box<AudioCallback>,
+ }
+ 
+ impl DesiredAudioSpec {
+@@ -123,12 +124,6 @@ impl DesiredAudioSpec {
+     }
+ }
+ 
+-impl Clone for DesiredAudioSpec {
+-    fn clone(&self) -> DesiredAudioSpec {
+-        *self
+-    }
+-}
+-
+ #[derive(Copy, Clone)]
+ pub struct ObtainedAudioSpec {
+     pub freq: c_int,
+@@ -154,9 +149,9 @@ impl ObtainedAudioSpec {
+ 
+ extern fn native_callback(userdata: *const c_void, stream: *mut u8, len: c_int) {
+     unsafe {
+-        let callback: Box<AudioCallback> = transmute(userdata);
++        let mut callback: Box<Box<AudioCallback>> = transmute(userdata);
+         let buffer = transmute((stream, len as usize));
+-        (*callback)(buffer);
++        callback.callback(buffer);
+         forget(callback);   // Don't free the callback!
+     }
+ }
+-- 
+1.7.9.5
+