1 files changed, 96 insertions, 0 deletions
diff --git a/src/texture.rs b/src/texture.rs
new file mode 100644
index 0000000..be07dd3
--- /dev/null
+++ b/src/texture.rs
@@ -0,0 +1,96 @@
+use crate::wgpuctx::WgpuCtx;
+
+pub struct Texture
+{
+    texture: wgpu::Texture,
+    view: wgpu::TextureView,
+    sampler: wgpu::Sampler,
+    pub bindgrouplayout: wgpu::BindGroupLayout,
+    bindgroup: wgpu::BindGroup,
+}
+
+impl Texture
+{
+    pub fn new(
+        device: &wgpu::Device,
+        descr: wgpu::TextureDescriptor)
+    -> Self
+    {
+        let texture = device.create_texture(&descr);
+        let view = texture.create_view(&wgpu::TextureViewDescriptor::default());
+        let sampler = device.create_sampler(
+            &wgpu::SamplerDescriptor {
+                address_mode_u: wgpu::AddressMode::Repeat,
+                address_mode_v: wgpu::AddressMode::Repeat,
+                address_mode_w: wgpu::AddressMode::ClampToEdge,
+                mag_filter: wgpu::FilterMode::Linear,
+                min_filter: wgpu::FilterMode::Nearest,
+                mipmap_filter: wgpu::FilterMode::Nearest,
+                ..Default::default()
+            }
+        );
+
+        let bind_group_layout = device.create_bind_group_layout(
+            &wgpu::BindGroupLayoutDescriptor {
+                label: None,
+                entries: &[
+                    wgpu::BindGroupLayoutEntry {
+                        binding: 0,
+                        visibility: wgpu::ShaderStages::FRAGMENT,
+                        ty: wgpu::BindingType::Texture { 
+                            sample_type: wgpu::TextureSampleType::Float {
+                                filterable: true
+                            }, 
+                            view_dimension: wgpu::TextureViewDimension::D2, 
+                            multisampled: false
+                        },
+                        count: None
+                    },
+                    wgpu::BindGroupLayoutEntry {
+                        binding: 1,
+                        visibility: wgpu::ShaderStages::FRAGMENT,
+                        ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
+                        count: None
+                    }
+                ]
+            }
+        );
+
+        let bind_group = device.create_bind_group(
+            &wgpu::BindGroupDescriptor {
+                label: None,
+                layout: &bind_group_layout,
+                entries: &[
+                    wgpu::BindGroupEntry {
+                        binding: 0,
+                        resource: wgpu::BindingResource::TextureView(&view)
+                    },
+                    wgpu::BindGroupEntry {
+                        binding: 1,
+                        resource: wgpu::BindingResource::Sampler(&sampler)
+                    }
+                ]
+            }
+        );
+
+        Self {
+            texture: texture,
+            view: view,
+            sampler: sampler,
+            bindgrouplayout: bind_group_layout,
+            bindgroup: bind_group,
+        }
+    }
+
+    pub fn view(&self)
+    -> &wgpu::TextureView
+    { &self.view }
+
+    pub fn use_on_pass(
+        &self,
+        pass: &mut wgpu::RenderPass,
+        index: u32)
+    {
+        pass.set_bind_group(index, &self.bindgroup, &[]);
+    }
+} // impl Texture