init

Author: blaquewithaq

.gitignore

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+.*
+!.gitignore
+
+target/

Cargo.lock

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+[package]
+name = "frontend-sdl2-rust"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+libc = "*"
+cc = "*"
+sdl2 = "0.35.2"
+projectm-rs = "*"

Cargo.toml

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+use sdl2::event::Event;
+use sdl2::keyboard::Keycode;
+use projectm_rs;
+
+fn main() -> Result<(), String> {
+    // setup sdl
+    let sdl_context = sdl2::init()?;
+    let video_subsystem = sdl_context.video()?;
+    // let audio_subsystem = sdl_context.audio()?;
+
+    // create window
+    let window = video_subsystem.window("frontend-sdl2-rust", 800, 600)
+        .position_centered()
+        .build()
+        .expect("could not initialize video subsystem");
+    
+    // create canvas/renderer
+    let mut canvas = window.into_canvas().build()
+        .expect("could not make a canvas");
+
+    // projectm::settings
+    let settings = projectm_rs::projectm_settings {
+        mesh_x: 96,
+        mesh_y: 54,
+        fps: 30,
+        texture_size: 512,
+        window_width: 640,
+        window_height: 360,
+        preset_duration: 15.0,
+        soft_cut_duration: 15.0,
+        hard_cut_duration: 60.0,
+        hard_cut_enabled: false,
+        hard_cut_sensitivity: 0.0,
+        beat_sensitivity: 0.5,
+        aspect_correction: true,
+        easter_egg: 0.5,
+        shuffle_enabled: true,
+        soft_cut_ratings_enabled: true,
+        preset_url: "/presets".as_bytes().as_ptr() as *mut i8,
+        title_font_url: "".as_bytes().as_ptr() as *mut i8,
+        menu_font_url: "".as_bytes().as_ptr() as *mut i8,
+        data_dir: "./".as_bytes().as_ptr() as *mut i8,
+    };
+    // print_settings(settings);
+
+    // projectm::init
+    let projectm_handle = unsafe {
+        projectm_rs::projectm_create_settings(&settings, 0)
+    };
+
+    unsafe {
+        projectm_rs::projectm_select_random_preset(projectm_handle, true);
+        projectm_rs::projectm_set_window_size(projectm_handle, settings.window_width.try_into().unwrap(), settings.window_height.try_into().unwrap())
+    }
+    println!("projectm initialized!");
+
+    // events
+    let mut event_pump = sdl_context.event_pump()?;
+
+    // renderLoop
+    'running: loop {
+
+        // check for event
+        for event in event_pump.poll_iter() {
+            match event {
+                Event::Quit {..} |
+                Event::KeyDown { keycode: Some(Keycode::Escape), .. } => {
+                    break 'running;
+                },
+                _ => {}
+            }
+        }
+
+        // generate random audio
+        generate_random_audio_data(projectm_handle);
+
+        // projectm::render
+        unsafe {
+            projectm_rs::projectm_render_frame(projectm_handle);    
+        }
+        
+        
+
+        canvas.clear();
+        canvas.present();
+    }
+
+    // finish okay
+    Ok(())
+}
+
+fn generate_random_audio_data(projectm_handle: *mut projectm_rs::projectm)
+{
+    let mut pcm_data: [[libc::c_short; 512]; 2] = [[0; 512]; 2];
+    let mut i: libc::c_int = 0 as libc::c_int;
+    while i < 512 as libc::c_int {
+        if i % 2 as libc::c_int == 1 as libc::c_int {
+            pcm_data[0 as libc::c_int as usize][i as usize] =
+                -(pcm_data[0 as libc::c_int as usize][i as usize] as
+                      libc::c_int) as libc::c_short;
+            pcm_data[1 as libc::c_int as usize][i as usize] =
+                -(pcm_data[1 as libc::c_int as usize][i as usize] as
+                      libc::c_int) as libc::c_short
+        }
+        i += 1
+    };
+
+    unsafe {
+        projectm_rs::projectm_pcm_add_int16(projectm_handle, &pcm_data[0][0], 512, 2)
+    }
+}