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enable freetype with imgui

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This commit is contained in:
Mitchell Hashimoto
2022-10-17 11:41:46 -07:00
parent ab721b5b26
commit 20f1077e86
2 changed files with 44 additions and 4 deletions
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16
build.zig
View File

@ -219,12 +219,12 @@ fn addDeps(
const glfw_opts: glfw.Options = .{ .metal = false, .opengl = false }; const glfw_opts: glfw.Options = .{ .metal = false, .opengl = false };
try glfw.link(b, step, glfw_opts); try glfw.link(b, step, glfw_opts);
// Imgui // Imgui, we have to do this later since we need some information
const imgui_backends = [_][]const u8{ "glfw", "opengl3" }; const imgui_backends = [_][]const u8{ "glfw", "opengl3" };
const imgui_step = try imgui.link(b, step, .{ var imgui_opts: imgui.Options = .{
.backends = &imgui_backends, .backends = &imgui_backends,
}); .freetype = .{ .enabled = true },
try glfw.link(b, imgui_step, glfw_opts); };
// Dynamic link // Dynamic link
if (!static) { if (!static) {
@ -305,7 +305,15 @@ fn addDeps(
}); });
libxml2_lib.link(fontconfig_step); libxml2_lib.link(fontconfig_step);
} }
// Imgui
imgui_opts.freetype.step = freetype_step;
imgui_opts.freetype.include = &freetype.include_paths;
} }
// Imgui
const imgui_step = try imgui.link(b, step, imgui_opts);
try glfw.link(b, imgui_step, glfw_opts);
} }
fn conformanceSteps( fn conformanceSteps(

32
pkg/imgui/build.zig
View File

@ -19,6 +19,14 @@ fn thisDir() []const u8 {
pub const Options = struct { pub const Options = struct {
backends: ?[]const []const u8 = null, backends: ?[]const []const u8 = null,
freetype: Freetype = .{},
pub const Freetype = struct {
enabled: bool = false,
step: ?*std.build.LibExeObjStep = null,
include: ?[]const []const u8 = null,
};
}; };
pub fn link( pub fn link(
@ -54,6 +62,10 @@ pub fn buildImgui(
try flags.appendSlice(&.{ try flags.appendSlice(&.{
"-DIMGUI_DISABLE_OBSOLETE_FUNCTIONS=1", "-DIMGUI_DISABLE_OBSOLETE_FUNCTIONS=1",
// We want to always have STB in addition to Freetype to
// fix compilation issues with cimgui.
"-DIMGUI_ENABLE_STB_TRUETYPE=1",
//"-fno-sanitize=undefined", //"-fno-sanitize=undefined",
}); });
switch (target.getOsTag()) { switch (target.getOsTag()) {
@ -65,6 +77,26 @@ pub fn buildImgui(
}), }),
} }
// Freetype
if (opt.freetype.enabled) {
if (opt.freetype.step) |freetype|
lib.linkLibrary(freetype)
else
lib.linkSystemLibrary("freetype2");
if (opt.freetype.include) |dirs|
for (dirs) |dir| lib.addIncludePath(dir);
// Enable in defines
try flags.appendSlice(&.{
"-DIMGUI_ENABLE_FREETYPE=1",
"-DCIMGUI_FREETYPE=1",
});
// Add necessary C file
lib.addCSourceFile(root ++ "imgui/misc/freetype/imgui_freetype.cpp", flags.items);
}
// C files // C files
lib.addCSourceFiles(srcs, flags.items); lib.addCSourceFiles(srcs, flags.items);
if (opt.backends) |backends| { if (opt.backends) |backends| {