From 9c4afed302d41df3217fb6e409782ce2f4c53f78 Mon Sep 17 00:00:00 2001
From: Determinant <ted.sybil@gmail.com>
Date: Wed, 15 Nov 2017 10:35:04 -0500
Subject: use unsafe texture feature

---
 src/main.rs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'src')

diff --git a/src/main.rs b/src/main.rs
index c894e02..9220694 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -63,7 +63,7 @@ struct SDLWindow {
     canvas: RefCell<sdl2::render::WindowCanvas>,
     events: RefCell<sdl2::EventPump>,
     frame_buffer: UnsafeCell<[u8; FB_SIZE]>,
-    texture_creator: sdl2::render::TextureCreator<sdl2::video::WindowContext>,
+    texture: UnsafeCell<sdl2::render::Texture>
 }
 
 impl SDLWindow {
@@ -84,7 +84,8 @@ impl SDLWindow {
             canvas: RefCell::new(canvas),
             events: RefCell::new(sdl_context.event_pump().unwrap()),
             frame_buffer: UnsafeCell::new([0; FB_SIZE]),
-            texture_creator,
+            texture: UnsafeCell::new(texture_creator.create_texture_streaming(
+                        PixelFormatEnum::RGB24, WIN_WIDTH, WIN_HEIGHT).unwrap())
         }
     }
 
@@ -130,12 +131,11 @@ impl ppu::Screen for SDLWindow {
     fn render(&self) {
         let mut canvas = self.canvas.borrow_mut();
         let fb = unsafe{&*self.frame_buffer.get()};
-        let mut texture = self.texture_creator.create_texture_streaming(
-                        PixelFormatEnum::RGB24, WIN_WIDTH, WIN_HEIGHT).unwrap();
-        texture.update(Rect::new(0, 0, WIN_WIDTH, WIN_HEIGHT), fb, FB_PITCH).unwrap();
+        let texture = unsafe{&mut *self.texture.get()};
+        texture.update(None, fb, FB_PITCH).unwrap();
         canvas.copy(&texture, None, Some(Rect::new(0, 0, WIN_WIDTH, WIN_HEIGHT))).unwrap();
         canvas.present();
-        canvas.set_draw_color(Color::RGB(128, 128, 128));
+        //canvas.set_draw_color(Color::RGB(128, 128, 128));
         canvas.clear();
     }
 }
-- 
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