adding base blit

src/soft/device/Blitter.zig

@@ -11,11 +11,7 @@ pub const SoftImageView = @import("../SoftImageView.zig");
 
 const Self = @This();
 
-blit_mutex: std.Thread.Mutex,
-
-pub const init: Self = .{
-    .blit_mutex = .{},
-};
+pub const init: Self = .{};
 
 pub fn clear(self: *Self, pixel: vk.ClearValue, format: vk.Format, dest: *SoftImage, view_format: vk.Format, range: vk.ImageSubresourceRange, area: ?vk.Rect2D) VkError!void {
     const dst_format = base.format.fromAspect(view_format, range.aspect_mask);
@@ -104,3 +100,9 @@ fn fastClear(self: *Self, clear_value: vk.ClearValue, clear_format: vk.Format, d
     }
     return false;
 }
+
+pub fn blitRegion(_: *Self, src: *const SoftImage, dst: *SoftImage, region: vk.ImageBlit) VkError!void {
+    _ = src;
+    _ = dst;
+    _ = region;
+}

src/soft/device/Device.zig

@@ -6,6 +6,7 @@ const SoftDescriptorSet = @import("../SoftDescriptorSet.zig");
 const SoftDevice = @import("../SoftDevice.zig");
 const SoftPipeline = @import("../SoftPipeline.zig");
 
+const Blitter = @import("Blitter.zig");
 const ComputeRoutines = @import("ComputeRoutines.zig");
 const PipelineState = @import("PipelineState.zig");
 
@@ -13,6 +14,8 @@ const VkError = base.VkError;
 
 const Self = @This();
 
+blitter: Blitter,
+
 compute_routines: ComputeRoutines,
 
 /// .graphics = 0
@@ -20,6 +23,7 @@ compute_routines: ComputeRoutines,
 pipeline_states: [2]PipelineState,
 
 pub const init: Self = .{
+    .blitter = .init,
     .compute_routines = undefined,
     .pipeline_states = undefined,
 };