compute is back in. Crashing the nvidia driver on buffer operations in the kernel....

src/drawables/compu_sprite.rs

@@ -0,0 +1,59 @@
+use std::sync::Arc;
+use crate::canvas::managed::handles::{CanvasImageHandle, CanvasTextureHandle};
+use crate::canvas::canvas_frame::Drawable;
+use crate::util::vertex::{VertexTypes, ImageVertex3D};
+
+pub struct CompuSprite {
+
+    pub verts: VertexTypes,
+
+    position: (f32, f32),
+    size: (f32, f32),
+    color: (f32, f32, f32, f32),
+
+}
+
+impl CompuSprite {
+    pub fn new(position: (f32, f32),
+               size: (f32, f32),
+               depth: u32,
+               image_size: (f32, f32),
+               image_handle: Arc<CanvasImageHandle>) -> CompuSprite {
+
+        let normalized_depth = (depth as f32 / 255.0);
+
+        let verts = vec![
+            ImageVertex3D {
+                v_position: [position.0, position.1, normalized_depth],                   // top left
+                ti_position: [-0.0, -0.0] },
+            ImageVertex3D {
+                v_position: [position.0, position.1 + size.1, normalized_depth],          // bottom left
+                ti_position: [-0.0, image_size.1] },
+            ImageVertex3D {
+                v_position: [position.0 + size.0, position.1 + size.1, normalized_depth], // bottom right
+                ti_position: [image_size.0, image_size.1] },
+            ImageVertex3D {
+                v_position: [position.0, position.1, normalized_depth],                   // top left
+                ti_position: [-0.0, -0.0] },
+            ImageVertex3D {
+                v_position: [position.0 + size.0, position.1 + size.1, normalized_depth], // bottom right
+                ti_position: [image_size.0, image_size.1] },
+            ImageVertex3D {
+                v_position: [position.0 + size.0, position.1, normalized_depth],          // top right
+                ti_position: [image_size.0, -0.0] },
+        ];
+
+        CompuSprite {
+            verts: VertexTypes::ImageType(verts, image_handle.clone()),
+            position: position,
+            size: size,
+            color: (0.0, 0.0, 0.0, 0.0),
+        }
+    }
+}
+
+impl Drawable for CompuSprite {
+    fn get(&self) -> VertexTypes {
+        self.verts.clone()
+    }
+}