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module: object recycling

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2024-09-30 01:21:31 -07:00 • committed by Emi Gutekanst
parent 8054d03b4d
commit 9d134dc72d
15 changed files with 396 additions and 90 deletions
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85
src/main.zig
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@ -11,8 +11,10 @@ pub const Core = if (build_options.want_core) @import("Core.zig") else struct {}
// note: gamemode requires libc on linux
pub const gamemode = if (builtin.os.tag != .linux or builtin.link_libc) @import("gamemode.zig");
pub const gfx = if (build_options.want_mach) @import("gfx/main.zig") else struct {};
pub const Audio = if (build_options.want_sysaudio) @import("Audio.zig") else struct {};
// TODO(object)
// pub const gfx = if (build_options.want_mach) @import("gfx/main.zig") else struct {};
// TODO(object)
// pub const Audio = if (build_options.want_sysaudio) @import("Audio.zig") else struct {};
pub const math = @import("math/main.zig");
pub const testing = @import("testing.zig");
pub const time = @import("time/main.zig");
@ -26,77 +28,11 @@ pub const Modules = @import("module.zig").Modules;
pub const ModuleID = @import("module.zig").ModuleID;
pub const ModuleFunctionID = @import("module.zig").ModuleFunctionID;
pub const FunctionID = @import("module.zig").FunctionID;
pub const Functions = @import("module.zig").Functions;
pub const ObjectID = u32;
pub fn Objects(comptime T: type) type {
return struct {
internal: struct {
allocator: std.mem.Allocator,
id_counter: ObjectID = 0,
ids: std.AutoArrayHashMapUnmanaged(ObjectID, u32) = .{},
data: std.MultiArrayList(T) = .{},
},
pub const IsMachObjects = void;
// Only iteration, get(i) and set(i) are supported currently.
pub const Slice = struct {
len: usize,
internal: std.MultiArrayList(T).Slice,
pub fn set(s: *Slice, index: usize, elem: T) void {
s.internal.set(index, elem);
}
pub fn get(s: Slice, index: usize) T {
return s.internal.get(index);
}
};
pub fn new(objs: *@This(), value: T) std.mem.Allocator.Error!ObjectID {
const allocator = objs.internal.allocator;
const ids = &objs.internal.ids;
const data = &objs.internal.data;
const new_index = try data.addOne(allocator);
errdefer _ = data.pop();
const new_object_id = objs.internal.id_counter;
try ids.putNoClobber(allocator, new_object_id, @intCast(new_index));
objs.internal.id_counter += 1;
data.set(new_index, value);
return new_object_id;
}
pub fn set(objs: *@This(), id: ObjectID, value: T) void {
const ids = &objs.internal.ids;
const data = &objs.internal.data;
const index = ids.get(id) orelse std.debug.panic("invalid object: {any}", .{id});
data.set(index, value);
}
pub fn get(objs: *@This(), id: ObjectID) ?T {
const ids = &objs.internal.ids;
const data = &objs.internal.data;
const index = ids.get(id) orelse return null;
return data.get(index);
}
pub fn slice(objs: *@This()) Slice {
return Slice{ .len = objs.internal.data.len, .internal = objs.internal.data };
}
};
}
pub fn Object(comptime T: type) type {
return T;
}
pub const Mod = @import("module.zig").Mod;
pub const ObjectID = @import("module.zig").ObjectID;
pub const Objects = @import("module.zig").Objects;
// TODO(object): remove this?
pub fn schedule(v: anytype) @TypeOf(v) {
return v;
}
@ -108,7 +44,10 @@ test {
_ = gpu;
_ = sysaudio;
_ = sysgpu;
_ = gfx;
// TODO(object)
// _ = gfx;
// TODO(object)
// _ = Audio;
_ = math;
_ = testing;
_ = time;