switch from capy to sokol + imgui

3rd-party/cimgui/build.zig

@@ -0,0 +1,66 @@
+const std = @import("std");
+const builtin = @import("builtin");
+
+pub fn build(b: *std.Build) void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const dep_cimgui = b.dependency("cimgui", .{});
+    const dep_imgui = b.dependency("imgui", .{});
+
+    // create file tree for cimgui and imgui
+    const wf = b.addNamedWriteFiles("cimgui");
+    _ = wf.addCopyDirectory(dep_cimgui.path(""), "", .{});
+    _ = wf.addCopyDirectory(dep_imgui.path(""), "imgui", .{});
+    const root = wf.getDirectory();
+
+    // build cimgui as C/C++ library
+    const lib_cimgui = b.addStaticLibrary(.{
+        .name = "cimgui_clib",
+        .target = target,
+        .optimize = optimize,
+        .link_libc = true,
+    });
+    lib_cimgui.linkLibCpp();
+    lib_cimgui.addCSourceFiles(.{
+        .root = root,
+        .files = &.{
+            b.pathJoin(&.{"cimgui.cpp"}),
+            b.pathJoin(&.{ "imgui", "imgui.cpp" }),
+            b.pathJoin(&.{ "imgui", "imgui_widgets.cpp" }),
+            b.pathJoin(&.{ "imgui", "imgui_draw.cpp" }),
+            b.pathJoin(&.{ "imgui", "imgui_tables.cpp" }),
+            b.pathJoin(&.{ "imgui", "imgui_demo.cpp" }),
+        },
+    });
+    lib_cimgui.addIncludePath(root);
+
+    // make cimgui available as artifact, this then allows to inject
+    // the Emscripten include path in another build.zig
+    b.installArtifact(lib_cimgui);
+
+    // lib compilation depends on file tree
+    lib_cimgui.step.dependOn(&wf.step);
+
+    // translate-c the cimgui.h file
+    // NOTE: always run this with the host target, that way we don't need to inject
+    // the Emscripten SDK include path into the translate-C step when building for WASM
+    const cimgui_h = dep_cimgui.path("cimgui.h");
+    const translateC = b.addTranslateC(.{
+        .root_source_file = cimgui_h,
+        .target = b.host,
+        .optimize = optimize,
+    });
+    translateC.defineCMacroRaw("CIMGUI_DEFINE_ENUMS_AND_STRUCTS=\"\"");
+    const entrypoint = translateC.getOutput();
+
+    // build cimgui as a module with the header file as the entrypoint
+    const mod_cimgui = b.addModule("cimgui", .{
+        .root_source_file = entrypoint,
+        .target = target,
+        .optimize = optimize,
+        .link_libc = true,
+        .link_libcpp = true,
+    });
+    mod_cimgui.linkLibrary(lib_cimgui);
+}

3rd-party/cimgui/build.zig.zon

@@ -0,0 +1,18 @@
+.{
+    .name = "cimgui",
+    .version = "0.0.0",
+
+    .dependencies = .{
+        .cimgui = .{
+            .url = "git+https://github.com/cimgui/cimgui.git#1.90.7",
+            .hash = "1220d925a8374fbc3a21a5b46025fb867672d85b4099d2151bed607618e08b0cd71c",
+        },
+        .imgui = .{
+            .url = "git+https://github.com/ocornut/imgui.git#v1.90.7",
+            .hash = "122072b125179c7cbdbbee8fa81d22a1050a950ad61cfeefee8dc0dca5423b5d05b9",
+        },
+    },
+    .paths = .{
+        "",
+    },
+}