From 99976f29341fef274c8fa69dd8e0c56fe74597d6 Mon Sep 17 00:00:00 2001
From: Warren Lo <warren@accusys.com.tw>
Date: Thu, 19 Mar 2026 01:08:21 +0800
Subject: [PATCH] Add SDL2 renderer module

---
 src/player/renderer.rs | 115 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 src/player/renderer.rs

diff --git a/src/player/renderer.rs b/src/player/renderer.rs
new file mode 100644
index 0000000..c53e400
--- /dev/null
+++ b/src/player/renderer.rs
@@ -0,0 +1,115 @@
+//! SDL2 renderer module
+
+use anyhow::Result;
+use sdl2::pixels::PixelFormatEnum;
+use sdl2::rect::Rect;
+use std::sync::{Arc, Mutex};
+
+pub struct Renderer {
+    sdl: sdl2::Sdl,
+    video_subsystem: sdl2::VideoSubsystem,
+    window: sdl2::video::Window,
+    canvas: sdl2::render::Canvas<sdl2::video::Window>,
+    texture_creator: sdl2::render::TextureCreator<sdl2::video::WindowContext>,
+    texture: Option<sdl2::render::Texture>,
+    width: u32,
+    height: u32,
+}
+
+impl Renderer {
+    pub fn new(title: &str, width: u32, height: u32) -> Result<Self> {
+        let sdl = sdl2::init()?;
+        let video_subsystem = sdl.video()?;
+        
+        let window = video_subsystem
+            .window(title, width, height)
+            .position_centered()
+            .build()?;
+        
+        let canvas = window.into_canvas().build()?;
+        let texture_creator = canvas.texture_creator();
+        
+        Ok(Self {
+            sdl,
+            video_subsystem,
+            window,
+            canvas,
+            texture_creator,
+            texture: None,
+            width,
+            height,
+        })
+    }
+
+    pub fn create_texture(&mut self, width: u32, height: u32) -> Result<()> {
+        self.texture = Some(
+            self.texture_creator
+                .create_texture_streaming(PixelFormatEnum::RGB24, width, height)?
+        );
+        self.width = width;
+        self.height = height;
+        Ok(())
+    }
+
+    pub fn update_texture(&mut self, data: &[u8]) -> Result<()> {
+        if let Some(ref mut texture) = self.texture {
+            texture.update(None, data, self.width as usize * 3)?;
+        }
+        Ok(())
+    }
+
+    pub fn clear(&mut self) {
+        self.canvas.set_draw_color(sdl2::pixels::Color::BLACK);
+        self.canvas.clear();
+    }
+
+    pub fn draw_bbox(&mut self, x: i32, y: i32, w: u32, h: u32, label: &str) {
+        // Draw rectangle border
+        self.canvas.set_draw_color(sdl2::pixels::Color::RGB(0, 255, 0));
+        let _ = self.canvas.draw_rect(Rect::new(x, y, w, h));
+        
+        // Draw label background
+        let label_rect = Rect::new(x, y - 20, 100, 20);
+        self.canvas.set_draw_color(sdl2::pixels::Color::RGBA(0, 0, 0, 180));
+        let _ = self.canvas.fill_rect(label_rect);
+    }
+
+    pub fn present(&mut self) {
+        // Draw texture if available
+        if let Some(ref texture) = self.texture {
+            self.canvas.copy(texture, None, None).ok();
+        }
+        self.canvas.present();
+    }
+
+    pub fn set_fullscreen(&mut self, fullscreen: bool) -> Result<()> {
+        if fullscreen {
+            self.window.set_fullscreen(sdl2::video::FullscreenType::Desktop)?;
+        } else {
+            self.window.set_fullscreen(sdl2::video::FullscreenType::Off)?;
+        }
+        Ok(())
+    }
+
+    pub fn resize(&mut self, width: u32, height: u32) -> Result<()> {
+        self.window.set_size(width, height)?;
+        Ok(())
+    }
+
+    pub fn poll_events(&mut self) -> Vec<sdl2::event::Event> {
+        let mut events = Vec::new();
+        let pump = self.sdl.event_pump();
+        if let Ok(pump) = pump {
+            for event in pump.poll_iter() {
+                events.push(event);
+            }
+        }
+        events
+    }
+}
+
+impl Drop for Renderer {
+    fn drop(&mut self) {
+        // Cleanup handled automatically
+    }
+}