mirror of
https://github.com/ghostty-org/ghostty.git
synced 2026-04-20 14:25:19 +00:00
pkg/dcimgui: DearBindings-based Imgui support
This commit is contained in:
Mitchell Hashimoto
157
pkg/dcimgui/build.zig
Normal file
157
pkg/dcimgui/build.zig
Normal file
@@ -0,0 +1,157 @@
|
||||
const std = @import("std");
|
||||
const NativeTargetInfo = std.zig.system.NativeTargetInfo;
|
||||
|
||||
pub fn build(b: *std.Build) !void {
|
||||
const target = b.standardTargetOptions(.{});
|
||||
const optimize = b.standardOptimizeOption(.{});
|
||||
const backend_opengl3 = b.option(bool, "backend-opengl3", "OpenGL3 backend") orelse false;
|
||||
const backend_metal = b.option(bool, "backend-metal", "Metal backend") orelse false;
|
||||
const backend_osx = b.option(bool, "backend-osx", "OSX backend") orelse false;
|
||||
|
||||
// Build options
|
||||
const options = b.addOptions();
|
||||
options.addOption(bool, "backend_opengl3", backend_opengl3);
|
||||
options.addOption(bool, "backend_metal", backend_metal);
|
||||
options.addOption(bool, "backend_osx", backend_osx);
|
||||
|
||||
// Main static lib
|
||||
const lib = b.addLibrary(.{
|
||||
.name = "dcimgui",
|
||||
.root_module = b.createModule(.{
|
||||
.target = target,
|
||||
.optimize = optimize,
|
||||
}),
|
||||
.linkage = .static,
|
||||
});
|
||||
lib.linkLibC();
|
||||
lib.linkLibCpp();
|
||||
b.installArtifact(lib);
|
||||
|
||||
// Zig module
|
||||
const mod = b.addModule("dcimgui", .{
|
||||
.root_source_file = b.path("main.zig"),
|
||||
.target = target,
|
||||
.optimize = optimize,
|
||||
});
|
||||
mod.addOptions("build_options", options);
|
||||
mod.linkLibrary(lib);
|
||||
|
||||
// We need to add proper Apple SDKs to find stdlib headers
|
||||
if (target.result.os.tag.isDarwin()) {
|
||||
if (!target.query.isNative()) {
|
||||
try @import("apple_sdk").addPaths(b, lib);
|
||||
}
|
||||
}
|
||||
|
||||
// Flags for C compilation, common to all.
|
||||
var flags: std.ArrayList([]const u8) = .empty;
|
||||
defer flags.deinit(b.allocator);
|
||||
try flags.appendSlice(b.allocator, &.{
|
||||
"-DIMGUI_USE_WCHAR32=1",
|
||||
"-DIMGUI_DISABLE_OBSOLETE_FUNCTIONS=1",
|
||||
});
|
||||
if (target.result.os.tag == .windows) {
|
||||
try flags.appendSlice(b.allocator, &.{
|
||||
"-DIMGUI_IMPL_API=extern\t\"C\"\t__declspec(dllexport)",
|
||||
});
|
||||
} else {
|
||||
try flags.appendSlice(b.allocator, &.{
|
||||
"-DIMGUI_IMPL_API=extern\t\"C\"",
|
||||
});
|
||||
}
|
||||
if (target.result.os.tag == .freebsd) {
|
||||
try flags.append(b.allocator, "-fPIC");
|
||||
}
|
||||
|
||||
// Add the core Dear Imgui source files
|
||||
if (b.lazyDependency("imgui", .{})) |upstream| {
|
||||
lib.addIncludePath(upstream.path(""));
|
||||
lib.addCSourceFiles(.{
|
||||
.root = upstream.path(""),
|
||||
.files = &.{
|
||||
"imgui_demo.cpp",
|
||||
"imgui_draw.cpp",
|
||||
"imgui_tables.cpp",
|
||||
"imgui_widgets.cpp",
|
||||
"imgui.cpp",
|
||||
},
|
||||
.flags = flags.items,
|
||||
});
|
||||
|
||||
lib.installHeadersDirectory(
|
||||
upstream.path(""),
|
||||
"",
|
||||
.{ .include_extensions = &.{".h"} },
|
||||
);
|
||||
|
||||
if (backend_metal) {
|
||||
lib.addCSourceFiles(.{
|
||||
.root = upstream.path("backends"),
|
||||
.files = &.{"imgui_impl_metal.mm"},
|
||||
.flags = flags.items,
|
||||
});
|
||||
lib.installHeadersDirectory(
|
||||
upstream.path("backends"),
|
||||
"",
|
||||
.{ .include_extensions = &.{"imgui_impl_metal.h"} },
|
||||
);
|
||||
}
|
||||
if (backend_osx) {
|
||||
lib.addCSourceFiles(.{
|
||||
.root = upstream.path("backends"),
|
||||
.files = &.{"imgui_impl_osx.mm"},
|
||||
.flags = flags.items,
|
||||
});
|
||||
lib.installHeadersDirectory(
|
||||
upstream.path("backends"),
|
||||
"",
|
||||
.{ .include_extensions = &.{"imgui_impl_osx.h"} },
|
||||
);
|
||||
}
|
||||
if (backend_opengl3) {
|
||||
lib.addCSourceFiles(.{
|
||||
.root = upstream.path("backends"),
|
||||
.files = &.{"imgui_impl_opengl3.cpp"},
|
||||
.flags = flags.items,
|
||||
});
|
||||
lib.installHeadersDirectory(
|
||||
upstream.path("backends"),
|
||||
"",
|
||||
.{ .include_extensions = &.{"imgui_impl_opengl3.h"} },
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
// Add the C bindings
|
||||
if (b.lazyDependency("bindings", .{})) |upstream| {
|
||||
lib.addIncludePath(upstream.path(""));
|
||||
lib.addCSourceFiles(.{
|
||||
.root = upstream.path(""),
|
||||
.files = &.{
|
||||
"dcimgui.cpp",
|
||||
"dcimgui_internal.cpp",
|
||||
},
|
||||
.flags = flags.items,
|
||||
});
|
||||
|
||||
lib.installHeadersDirectory(
|
||||
upstream.path(""),
|
||||
"",
|
||||
.{ .include_extensions = &.{".h"} },
|
||||
);
|
||||
}
|
||||
|
||||
const test_exe = b.addTest(.{
|
||||
.name = "test",
|
||||
.root_module = b.createModule(.{
|
||||
.root_source_file = b.path("main.zig"),
|
||||
.target = target,
|
||||
.optimize = optimize,
|
||||
}),
|
||||
});
|
||||
test_exe.root_module.addOptions("build_options", options);
|
||||
test_exe.linkLibrary(lib);
|
||||
const tests_run = b.addRunArtifact(test_exe);
|
||||
const test_step = b.step("test", "Run tests");
|
||||
test_step.dependOn(&tests_run.step);
|
||||
}
|
||||
26
pkg/dcimgui/build.zig.zon
Normal file
26
pkg/dcimgui/build.zig.zon
Normal file
@@ -0,0 +1,26 @@
|
||||
.{
|
||||
.name = .dcimgui,
|
||||
.version = "1.92.5", // -docking branch
|
||||
.fingerprint = 0x1a25797442c6324f,
|
||||
.paths = .{""},
|
||||
.dependencies = .{
|
||||
// The bindings and imgui versions below must match exactly.
|
||||
|
||||
.bindings = .{
|
||||
// https://github.com/dearimgui/dear_bindings
|
||||
.url = "https://deps.files.ghostty.org/DearBindings_v0.17_ImGui_v1.92.5-docking.tar.gz",
|
||||
.hash = "N-V-__8AANT61wB--nJ95Gj_ctmzAtcjloZ__hRqNw5lC1Kr",
|
||||
.lazy = true,
|
||||
},
|
||||
|
||||
.imgui = .{
|
||||
// https://github.com/ocornut/imgui
|
||||
.url = "https://github.com/ocornut/imgui/archive/refs/tags/v1.92.5-docking.tar.gz",
|
||||
.hash = "N-V-__8AAEbOfQBnvcFcCX2W5z7tDaN8vaNZGamEQtNOe0UI",
|
||||
.lazy = true,
|
||||
},
|
||||
|
||||
.apple_sdk = .{ .path = "../apple-sdk" },
|
||||
.freetype = .{ .path = "../freetype" },
|
||||
},
|
||||
}
|
||||
26
pkg/dcimgui/main.zig
Normal file
26
pkg/dcimgui/main.zig
Normal file
@@ -0,0 +1,26 @@
|
||||
pub const build_options = @import("build_options");
|
||||
|
||||
pub const c = @cImport({
|
||||
@cInclude("dcimgui.h");
|
||||
});
|
||||
|
||||
// OpenGL3 backend
|
||||
pub extern fn ImGui_ImplOpenGL3_Init(glsl_version: ?[*:0]const u8) callconv(.c) bool;
|
||||
pub extern fn ImGui_ImplOpenGL3_Shutdown() callconv(.c) void;
|
||||
pub extern fn ImGui_ImplOpenGL3_NewFrame() callconv(.c) void;
|
||||
pub extern fn ImGui_ImplOpenGL3_RenderDrawData(draw_data: *c.ImDrawData) callconv(.c) void;
|
||||
|
||||
// Metal backend
|
||||
pub extern fn ImGui_ImplMetal_Init(device: *anyopaque) callconv(.c) bool;
|
||||
pub extern fn ImGui_ImplMetal_Shutdown() callconv(.c) void;
|
||||
pub extern fn ImGui_ImplMetal_NewFrame(render_pass_descriptor: *anyopaque) callconv(.c) void;
|
||||
pub extern fn ImGui_ImplMetal_RenderDrawData(draw_data: *c.ImDrawData, command_buffer: *anyopaque, command_encoder: *anyopaque) callconv(.c) void;
|
||||
|
||||
// OSX
|
||||
pub extern fn ImGui_ImplOSX_Init(*anyopaque) callconv(.c) bool;
|
||||
pub extern fn ImGui_ImplOSX_Shutdown() callconv(.c) void;
|
||||
pub extern fn ImGui_ImplOSX_NewFrame(*anyopaque) callconv(.c) void;
|
||||
|
||||
test {
|
||||
_ = c;
|
||||
}
|
||||
Reference in New Issue
Block a user