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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;
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