mach/freetype/src/types.zig
2022-05-25 09:05:57 -07:00

67 lines
1.8 KiB
Zig

const std = @import("std");
const c = @import("c.zig");
const utils = @import("utils.zig");
pub const Vector = c.FT_Vector;
pub const Matrix = c.FT_Matrix;
pub const Pos = c.FT_Pos;
pub const BBox = c.FT_BBox;
pub const RenderMode = enum(u3) {
normal = c.FT_RENDER_MODE_NORMAL,
light = c.FT_RENDER_MODE_LIGHT,
mono = c.FT_RENDER_MODE_MONO,
lcd = c.FT_RENDER_MODE_LCD,
lcd_v = c.FT_RENDER_MODE_LCD_V,
sdf = c.FT_RENDER_MODE_SDF,
};
pub const OpenFlags = packed struct {
memory: bool = false,
stream: bool = false,
path: bool = false,
driver: bool = false,
params: bool = false,
pub const Flag = enum(u5) {
memory = c.FT_OPEN_MEMORY,
stream = c.FT_OPEN_STREAM,
path = c.FT_OPEN_PATHNAME,
driver = c.FT_OPEN_DRIVER,
params = c.FT_OPEN_PARAMS,
};
pub fn toBitFields(flags: OpenFlags) u5 {
return utils.structToBitFields(u5, Flag, flags);
}
};
pub const OpenArgs = struct {
flags: OpenFlags,
data: union(enum) {
memory: []const u8,
path: []const u8,
stream: c.FT_Stream,
driver: c.FT_Module,
params: []const c.FT_Parameter,
},
pub fn toCInterface(self: OpenArgs) c.FT_Open_Args {
var oa = std.mem.zeroes(c.FT_Open_Args);
oa.flags = self.flags.toBitFields();
switch (self.data) {
.memory => |d| {
oa.memory_base = d.ptr;
oa.memory_size = @truncate(u31, d.len);
},
.path => |*d| oa.pathname = @intToPtr(*u8, @ptrToInt(d.ptr)),
.stream => |d| oa.stream = d,
.driver => |d| oa.driver = d,
.params => |*d| {
oa.params = @intToPtr(*c.FT_Parameter, @ptrToInt(d.ptr));
oa.num_params = @intCast(u31, d.len);
},
}
return oa;
}
};