70 lines
1.8 KiB
Zig
70 lines
1.8 KiB
Zig
const std = @import("std");
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const glfw = @import("glfw");
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const assert = std.debug.assert;
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const ig = @import("imgui");
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const ig_impl_glfw = @import("imgui_impl_glfw.zig");
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const ProfileMark = @import("../common/profiler.zig").ProfileMark;
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// TODO messy
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const Window = @import("../rendering/vulkan/display.zig").Window;
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const Instance = @import("../rendering/vulkan/instance.zig").Instance;
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const Device = @import("../rendering/vulkan/device.zig").Device;
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const queues = @import("../rendering/vulkan/queues.zig");
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const Bindings = @import("../rendering/vulkan/Bindings.zig");
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// TODO memory
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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const allocator = gpa.allocator();
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pub fn init(window: *Window) !void {
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ig.CHECKVERSION();
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// TODO
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//ig.SetAllocatorFunctions(igAlloc, igFree);
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_ = ig.CreateContext();
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errdefer ig.DestroyContext();
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if (!ig_impl_glfw.InitForVulkan(&window.handle, false)) {
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return error.ImGuiFailedToInitialize;
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}
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ig.StyleColorsDark();
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_ = window;
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}
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pub fn deinit() void {
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ig_impl_glfw.Shutdown();
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ig.DestroyContext();
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}
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const pm_beginframe = ProfileMark.init("ui.beginFrame");
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pub fn beginFrame() void {
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pm_beginframe.begin();
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defer pm_beginframe.end();
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ig_impl_glfw.NewFrame();
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ig.NewFrame();
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}
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const pm_endframe = ProfileMark.init("ui.endFrame");
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pub fn endFrame() void {
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pm_endframe.begin();
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defer pm_endframe.end();
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ig.EndFrame();
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}
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// TODO
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//fn igAlloc(sz: usize, user_data: ?*anyopaque) callconv(.C) ?*anyopaque {
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// _ = user_data;
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// const mem = allocator.alloc(u8, sz) catch return null;
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// return @ptrCast(*anyopaque, mem);
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//}
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//
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//fn igFree(ptr: ?*anyopaque, user_data: ?*anyopaque) callconv(.C) void {
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// _ = user_data;
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// if (ptr) |p| allocator.free(@ptrCast([*]u8, p));
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//}
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