screenshotting the output

Cargo.toml

@@ -6,14 +6,14 @@ edition = "2018"
 
 [dependencies]
 
-#vulkano = "0.13.0"
-vulkano = {path = "../vulkano/vulkano"}
+vulkano = "0.19.0"
+#vulkano = {path = "../vulkano/vulkano"}
 
-#vulkano-shaders = "0.14.0"
-vulkano-shaders = {path = "../vulkano/vulkano-shaders"}
+vulkano-shaders = "0.19.0"
+#vulkano-shaders = {path = "../vulkano/vulkano-shaders"}
 
-#vulkano-win = "0.14.0"
-vulkano-win= {path = "../vulkano/vulkano-win"}
+vulkano-win = "0.19.0"
+#vulkano-win= {path = "../vulkano/vulkano-win"}
 
 #shade_runner = {version = "0.1.1", git = "https://github.com/MitchellHansen/shade_runner"}
 shade_runner = {path = "../shade_runner"}

notes/Home.txt

@@ -8,15 +8,16 @@ Creation-Date: 2020-02-03T22:11:42-08:00
 === Trac3r : A program to convert images to 2D toolpaths ===
 
  TODO:
-	[x] Text rendering is half implemented.
-		[ ] Pathfinder vulkan backend implementation
-	[ ] Currently using local copies of a few libraries:
+	[X] Text rendering is mocked.
+		[?] Pathfinder vulkan backend implementation
+		    * Kinda big meh on this. It's very much oneshot based
+		      and not incredibly compatible with vulkano...
+	    [ ] Investigate lyon maybe
+	[X] Currently using local copies of a few libraries:
 		[x] shade_runner ( not gonna happen, my fork has diverged too far )
-		vulkano/vulkano-win
-		vulkano/vulkano-shaders
-		vulkano/vulkano
-	[*] Get a new GPU
-		[*] Figure out how to make this POS stable (semi stable)
+	[ ] Make a toolpath
+	    [X] Read from GPU?
+	    [ ] Figure out a way to vectorize the simple edge
 
 
 --------------------

resources/shaders/simple-edge.compute

@@ -60,11 +60,19 @@ void main() {
     else {
         //p.w = 125;
     }
+
     //write_buffer.buf[0] = write_buffer.buf[0];
-//    write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x000000FF) ) | (p.x);
-//    write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x0000FF00) ) | (p.y << 8);
-//    write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x00FF0000) ) | (p.z << 16);
-//    write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0xFF000000) ) | (p.w << 24);
+    write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x000000FF) ) | (p.x);
+    write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x0000FF00) ) | (p.y << 8);
+    write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x00FF0000) ) | (p.z << 16);
+    write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0xFF000000) ) | (p.w << 24);
+
+     //write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x00FF0000) ) & 0x0;
+     //write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x00FF0000) ) | (255 <<16);
+
+     //write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x0000FF00) ) | 10;
+  //   write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0x00FF0000) ) | 125;
+//     write_buffer.buf[idx] = (write_buffer.buf[idx] & (~0xFF000000) ) | 125;
 
 }
 

src/compute/compu_state.rs

@@ -57,12 +57,10 @@ impl CompuState {
         handle
     }
 
-    /// Read the compute buffer back into a Vec (TODO BROKEN)
     pub fn read_compute_buffer(&mut self, handle: Arc<CompuBufferHandle>) -> Vec<u8> {
-        // This is way more difficult than it should be
-        //let compute_buffer : CompuBuffers = self.compute_buffers.get(handle.into()).unwrap();
-        //compute_buffer.read_output_buffer().to_vec()
-        unimplemented!("read_compute_buffer is not implemented")
+        let mut buffer : &CompuBuffers = self.compute_buffers.get(handle.handle as usize).unwrap();
+        let v = buffer.read_output_buffer();
+        v.into_vec()
     }
 
     /// Write to the compute buffer, ostensibly overwriting what's already there
@@ -136,7 +134,7 @@ impl CompuState {
 
             command_buffer = command_buffer
                 .dispatch([size.0 / 8, size.1 / 8, 1], p, d, ()).unwrap()
-                .copy_buffer_to_image(buffer.get_input_buffer(), image).unwrap();
+                .copy_buffer_to_image(buffer.get_output_buffer(), image).unwrap();
         }
 
 

src/compute/managed/compu_buffer.rs

@@ -57,7 +57,7 @@ impl CompuBuffers {
             device: device.clone(),
 
             handle: handle,
-            io_buffers: vec![input_buffer, output_buffer],
+            io_buffers: vec![output_buffer, input_buffer],
             settings_buffer: settings_buffer,
         }
     }
@@ -82,8 +82,9 @@ impl CompuBuffers {
     pub fn read_output_buffer(&self) -> ImageBuffer<Rgba<u8>, Vec<u8>> {
         let xy = self.get_size();
 
-        self.io_buffers.get(1).unwrap().write().unwrap().map(|x| x);
-        let data_buffer_content = self.io_buffers.get(1).unwrap().read().unwrap();
+        self.io_buffers.get(0).unwrap().write().unwrap().map(|x| x);
+        let data_buffer_content = self.io_buffers.get(0).unwrap().read().unwrap();
+
         ImageBuffer::from_fn(xy.0, xy.1, |x, y| {
             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;
@@ -95,10 +96,10 @@ impl CompuBuffers {
     }
 
     pub fn get_input_buffer(&self) -> Arc<CpuAccessibleBuffer<[u8]>> {
-        self.io_buffers.get(0).unwrap().clone()
+        self.io_buffers.get(1).unwrap().clone()
     }
 
     pub fn get_output_buffer(&self) -> Arc<CpuAccessibleBuffer<[u8]>> {
-        self.io_buffers.get(1).unwrap().clone()
+        self.io_buffers.get(0).unwrap().clone()
     }
 }

src/main.rs

@@ -35,6 +35,7 @@ use crate::util::load_raw;
 use crate::util::timer::Timer;
 use crate::util::vertex::{TextureVertex3D, VertexTypes};
 use crate::vkprocessor::VkProcessor;
+use std::path::Path;
 
 pub mod util;
 pub mod vkprocessor;
@@ -87,15 +88,22 @@ pub fn main() {
     let mut current_time: f32 = timer.elap_time();
 
     let image_data = load_raw(String::from("funky-bird.jpg"));
-    let image_dimensions_f: (f32, f32) = ((image_data.1).0 as f32, (image_data.1).1 as f32);
+    let image_dimensions_f: (f32, f32) = ((image_data.1).clone().0 as f32, (image_data.1).clone().1 as f32);
     let image_dimensions_u: (u32, u32) = image_data.1;
     let compu_sprite1: CompuSprite =
-        CompuSprite::new((0.0, -0.5), (0.4, 0.4), 0, image_dimensions_f,
+        CompuSprite::new((0.0, -0.5), (1.0, 1.0), 0, image_dimensions_f,
                          // Swap image to render the result to. Must match dimensions
                          processor.new_swap_image(image_dimensions_u));
 
+
+    // Demo gpu toolpath generation
+
+    // Need to
     let compute_buffer: Arc<CompuBufferHandle> =
-        processor.new_compute_buffer(image_data.0, image_data.1, 4);
+        processor.new_compute_buffer(image_data.0.clone(), image_data.1, 4);
+
+    let first_output_buffer: Arc<CompuBufferHandle> =
+        processor.new_compute_buffer(image_data.0.clone(), image_data.1.clone(), 4);
 
     let compute_kernel: Arc<CompuKernelHandle> =
         processor.get_kernel_handle(String::from("simple-edge.compute"))
@@ -123,10 +131,6 @@ pub fn main() {
 
     let l = hprof::enter("Loop");
 
-    let mut exit = false;
-
-    let mut count = 0;
-
     // while let true = processor.is_open() {
     //
     //     // Take care of our timing
@@ -164,6 +168,9 @@ pub fn main() {
                 let mut compu_frame = CompuFrame::new();
                 //compu_frame.add(compute_buffer.clone(), compute_kernel.clone());
                 compu_frame.add_with_image_swap(compute_buffer.clone(), compute_kernel.clone(), &compu_sprite1);
+                compu_frame.add(compute_buffer.clone(), compute_kernel.clone());
+
+                canvas_frame.draw(&compu_sprite1);
 
                 {
                     let g = hprof::enter("Run");
@@ -171,6 +178,7 @@ pub fn main() {
                                   canvas_frame,
                                   compu_frame);
                 }
+
             }
             Event::DeviceEvent { event: DeviceEvent::Key(keyboard_input), .. } => {
                 match keyboard_input.virtual_keycode.unwrap() {
@@ -178,6 +186,12 @@ pub fn main() {
                         if keyboard_input.state == ElementState::Pressed {
                             // processor.save_edges_image();
                         }
+                    },
+                    VirtualKeyCode::P => {
+                        if keyboard_input.state == ElementState::Pressed {
+                            let data = processor.read_compute_buffer(compute_buffer.clone());
+                            image::save_buffer(&Path::new("image.png"), data.as_slice(), (image_data.1).0, (image_data.1).1, image::RGBA(8));
+                        }
                     }
                     _ => ()
                 }

src/vkprocessor.rs

@@ -76,9 +76,7 @@ impl VkProcessor {
 
             let capabilities = surface.capabilities(physical).unwrap();
 
-
         VkProcessor {
-            //physical: physical.clone(),
             device: device.clone(),
             queue: queue.clone(),
             queues: queues,
@@ -91,12 +89,6 @@ impl VkProcessor {
         }
     }
 
-    /// VKProcessor controls the window. So it will let the main loop know when it is done
-    pub fn is_open(&mut self) -> bool {
-        // self.surface
-        true
-    }
-
     /// Using the surface, we calculate the surface capabilities and create the swapchain and swapchain images
     pub fn create_swapchain(&mut self, instance: Arc<Instance>, surface: Arc<Surface<Window>>) {
         let (mut swapchain, images) = {