adding buffer-image copies

src/soft/device/ComputeRoutines.zig

@@ -200,6 +200,18 @@ fn writeDescriptorSets(self: *Self, rt: *spv.Runtime) !void {
                         );
                     }
                 },
+                .image => |image_data_array| for (image_data_array, 0..) |image_data, descriptor_index| {
+                    if (image_data.object) |image| {
+                        const memory = if (image.interface.memory) |memory| memory else continue :bindings;
+                        const map: []u8 = @as([*]u8, @ptrCast(try memory.map(image.interface.memory_offset, try image.interface.getTotalSize())))[0..try image.interface.getTotalSize()];
+                        try rt.writeDescriptorSet(
+                            map,
+                            @as(u32, @intCast(set_index)),
+                            @as(u32, @intCast(binding_index)),
+                            @as(u32, @intCast(descriptor_index)),
+                        );
+                    }
+                },
                 else => {},
             }
         }