1 files changed, 36 insertions(+), 1 deletions(-)

M color.ha

@@ 1,4 1,6 @@
-use math::{sqrtf64, nextafterf64};
+use math::{f64frombits, f64bits, sqrtf64, nextafterf64};
+use endian;
+
 
 export type color = struct {
 	r: f64,


@@ 37,6 39,18 @@ export fn fromrgb(c: rgb) color = {
 	};
 };
 
+export fn deserialize(b: []u8) color = color {
+	r = f64frombits(endian::legetu64(b[..8])),
+	g = f64frombits(endian::legetu64(b[8..16])),
+	b = f64frombits(endian::legetu64(b[16..])),
+};
+
+export fn serialize(b: []u8, c: const *color) void = {
+	endian::leputu64(b[..8], f64bits(c.r));
+	endian::leputu64(b[8..16], f64bits(c.g));
+	endian::leputu64(b[16..24], f64bits(c.b));
+};
+
 export fn lerp(c1: *const color, c2: *const color, t: f64) color = color {
 	r = (1.0 - t) * c1.r + t * c2.r,
 	g = (1.0 - t) * c1.g + t * c2.g,


@@ 51,3 65,24 @@ export fn sum_color(c1: *const color, c2: *const color) color = color {
 
 export fn equal(c1: color, c2: color) bool =
 	c1.r == c2.r && c1.g == c2.g && c1.b == c2.b;
+
+@test fn equal() void = {
+	let c = C(0.2, 0.45, 0.8);
+	assert(equal(C(0.2, 0.45, 0.8), c));
+	assert(!equal(c, C(0.2, 0.0, 0.8)));
+	assert(!equal(c, C(0.0, 0.45, 0.8)));
+	assert(!equal(c, C(0.2, 0.45, 0.0)));
+};
+
+@test fn serialize() void = {
+	let c = C(0.2, 0.45, 0.8);
+	let b: [24]u8 = [0...];
+	serialize(b, &c);
+	assert(equal(c, deserialize(b)));
+};
+
+@test fn sum_color() void = {
+	let grey = C(0.5, 0.5, 0.5);
+	let white = C(1.0, 1.0, 1.0);
+	assert(equal(sum_color(&grey, &grey), white));
+};