adding another buffer for xy

resources/shaders/add.compute

@@ -1,16 +1,57 @@
 #version 450
 
-layout(local_size_x = 64, local_size_y = 1, local_size_z = 1) in;
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 
 layout(set = 0, binding = 0) buffer Data {
-    uint data[];
+    int data[];
 } data;
 
+//layout(set = 0, binding = 1) buffer Settings {
+//    int settings[];
+//} settings;
+
+ivec4 separate(int pix){
+    ivec4 r = ivec4(
+    (pix & 0x000000FF),
+    (pix & 0x0000FF00) >> 8,
+    (pix & 0x00FF0000) >> 16,
+    (pix & 0xFF000000) >> 24
+    );
+    return r;
+}
+
+uint get_idx(int offset_x, int offset_y){
+
+//    uint x = min(settings.settings[0], max(0, gl_GlobalInvocationID.x + offset_x));
+//    uint y = min(settings.settings[1], max(0, gl_GlobalInvocationID.y + offset_y));
+//    return ((y * settings.settings[0]) + x);
+
+    uint x = min(800, max(0, gl_GlobalInvocationID.x + offset_x));
+    uint y = min(600, max(0, gl_GlobalInvocationID.y + offset_y));
+    return ((y * 800) + x);
+}
+
 void main() {
-    uint idx = (gl_GlobalInvocationID.y * 720 + gl_GlobalInvocationID.x);
 
-    data.data[idx+0] = 255;
+    uint idx = get_idx(0,0);
-    data.data[idx+1] = 0;
+
-    data.data[idx+2] = 0;
+    ivec4 p = separate(data.data[get_idx(0,0)]);
+
+
+    ivec4 p0 = separate(data.data[get_idx(2,0)]);
+    ivec4 p1 = separate(data.data[get_idx(-2,0)]);
+
+    ivec4 p2 = separate(data.data[get_idx(0,2)]);
+    ivec4 p3 = separate(data.data[get_idx(0,-2)]);
+
+    ivec3 d0 = abs(p0.xyz - p1.xyz);
+    ivec3 d1 = abs(p2.xyz - p3.xyz);
+
+    p.x = 255;//d0.x + d0.y + d0.z + d1.x + d1.y + d1.z;
+
+    data.data[idx] = (data.data[idx] & (~0x000000FF) ) | (p.x);
+    data.data[idx] = (data.data[idx] & (~0x0000FF00) ) | (p.y << 8);
+    data.data[idx] = (data.data[idx] & (~0x00FF0000) ) | (p.z << 16);
+    data.data[idx] = (data.data[idx] & (~0xFF000000) ) | (p.w << 24);
 
 }

src/main.rs

@@ -33,6 +33,7 @@ use std::fs;
 use crate::input::Input;
 use crate::slider::Slider;
 use crate::timer::Timer;
+use na::DimAdd;
 
 mod slider;
 mod timer;
@@ -171,28 +172,42 @@ fn main() {
     });
 
     // Load up the input image, determine some details
-    let mut img = image::open("resources/images/funky-bird.jpg").unwrap();
+    let mut img = image::open("resources/images/background.jpg").unwrap();
     let xy = img.dimensions();
-    let data_length = xy.0*xy.1*3;
+    let data_length = xy.0*xy.1*4;
+
+    let mut image_buffer = Vec::new();
+
+    for i in img.raw_pixels().iter() {
+        if (image_buffer.len() + 1) % 4 == 0 {
+            image_buffer.push(255);
+        }
+        image_buffer.push(*i);
+    }
+    image_buffer.push(255);
 
     println!("Buffer length {}", data_length);
-    println!("Buffer length {}", img.raw_pixels().len());
+    println!("Buffer length {}", image_buffer.len());
     println!("Size {:?}", xy);
 
-    let mut image_buffer = Vec::new();
-
     {
         // Pull out the image data and place it in a sync'd CPU<->GPU buffer
+        // Raw pixels is a u8 rgb buffer (x*y*3)
         let data_buffer = {
-            let mut buff = img.raw_pixels();
+            //let mut buff = img.raw_pixels();
-            let mut buff = buff.iter();
+            let mut buff = image_buffer.iter();
             let data_iter = (0 .. data_length).map(|n| *(buff.next().unwrap()));
             CpuAccessibleBuffer::from_iter(device.clone(), BufferUsage::all(), data_iter).unwrap()
         };
 
+        let settings_buffer = {
+            CpuAccessibleBuffer::from_data(device.clone(), BufferUsage::all(), vec![xy.0, xy.1]).unwrap()
+        };
+
         // Create the data descriptor set for our previously created shader pipeline
         let set = Arc::new(PersistentDescriptorSet::start(pipeline.clone(), 0)
             .add_buffer(data_buffer.clone()).unwrap()
+            .add_buffer(settings_buffer.clone()).unwrap()
             .build().unwrap()
         );
 
@@ -214,23 +229,23 @@ fn main() {
 
         for y in 0 .. xy.1 {
             for x in 0 .. xy.0 {
+                let r = data_buffer_content[((xy.0 * y + x) * 4 + 0) as usize] as u8;
+                let g = data_buffer_content[((xy.0 * y + x) * 4 + 1) as usize] as u8;
+                let b = data_buffer_content[((xy.0 * y + x) * 4 + 2) as usize] as u8;
+                let a = data_buffer_content[((xy.0 * y + x) * 4 + 3) as usize] as u8;
 
-                let r = data_buffer_content[((xy.0 * y + x) * 3 + 0) as usize] as u8;
-                let g = data_buffer_content[((xy.0 * y + x) * 3 + 1) as usize] as u8;
-                let b = data_buffer_content[((xy.0 * y + x) * 3 + 2) as usize] as u8;
 
-                image_buffer.push(r);
+                *image_buffer.get_mut(((xy.0 * y + x) * 4 + 0) as usize).unwrap() = r;
-                image_buffer.push(g);
+                *image_buffer.get_mut(((xy.0 * y + x) * 4 + 1) as usize).unwrap() = g;
-                image_buffer.push(b);
+                *image_buffer.get_mut(((xy.0 * y + x) * 4 + 2) as usize).unwrap() = b;
-                image_buffer.push(255);
+                *image_buffer.get_mut(((xy.0 * y + x) * 4 + 3) as usize).unwrap() = a;
-
-                img.put_pixel(x, y, image::Rgba([r, g, b, 255]))
 
+                img.put_pixel(x, y, image::Rgba([r, g, b, a]))
             }
         }
     }
 
-    img.save("output.png");
+    img.save("output9.png");
 
     println!("Starting");
 
@@ -241,6 +256,7 @@ fn main() {
         &Default::default(),
     );
 
+
     let mut timer = Timer::new();
     let mut input = Input::new();
 
@@ -311,8 +327,8 @@ fn main() {
             accumulator_time -= step_size;
         }
 
-        let x = window.mouse_position().x as f32 / window.size().x as f32;
+        let x = 0.;//window.mouse_position().x as f32 / window.size().x as f32;
-        let y = window.mouse_position().y as f32 / window.size().y as f32;
+        let y = 0.;//window.mouse_position().y as f32 / window.size().y as f32;
         effects[current].update(elapsed_time*1.0, x, y);
 
         window.clear(&Color::BLACK);