1 files changed, 48 insertions, 0 deletions
diff --git a/vendor/zgui/src/backend_win32_dx12.zig b/vendor/zgui/src/backend_win32_dx12.zig
new file mode 100644
index 0000000..2cc5bf9
--- /dev/null
+++ b/vendor/zgui/src/backend_win32_dx12.zig
@@ -0,0 +1,48 @@
+const std = @import("std");
+
+const gui = @import("gui.zig");
+const backend_dx12 = @import("backend_dx12.zig");
+
+pub fn init(
+    hwnd: *const anyopaque, // HWND
+    d3d12_device: *const anyopaque, // ID3D12Device*
+    num_frames_in_flight: u16,
+    rtv_format: u32, // DXGI_FORMAT
+    cbv_srv_heap: *const anyopaque, // ID3D12DescriptorHeap*
+    font_srv_cpu_desc_handle: backend_dx12.D3D12_CPU_DESCRIPTOR_HANDLE,
+    font_srv_gpu_desc_handle: backend_dx12.D3D12_GPU_DESCRIPTOR_HANDLE,
+) void {
+    std.debug.assert(ImGui_ImplWin32_Init(hwnd));
+    backend_dx12.init(
+        d3d12_device,
+        num_frames_in_flight,
+        rtv_format,
+        cbv_srv_heap,
+        font_srv_cpu_desc_handle,
+        font_srv_gpu_desc_handle,
+    );
+}
+
+pub fn deinit() void {
+    backend_dx12.deinit();
+    ImGui_ImplWin32_Shutdown();
+}
+
+pub fn newFrame(fb_width: u32, fb_height: u32) void {
+    ImGui_ImplWin32_NewFrame();
+    backend_dx12.newFrame();
+
+    gui.io.setDisplaySize(@as(f32, @floatFromInt(fb_width)), @as(f32, @floatFromInt(fb_height)));
+    gui.io.setDisplayFramebufferScale(1.0, 1.0);
+
+    gui.newFrame();
+}
+
+pub fn draw(graphics_command_list: *const anyopaque) void {
+    gui.render();
+    backend_dx12.render(gui.getDrawData(), graphics_command_list);
+}
+
+extern fn ImGui_ImplWin32_Init(hwnd: *const anyopaque) bool;
+extern fn ImGui_ImplWin32_Shutdown() void;
+extern fn ImGui_ImplWin32_NewFrame() void;