From f483b5d8ea24dc1b64db51dff03d933dc0793d00 Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Wed, 7 Aug 2024 19:31:03 +1000
Subject: col_add
---
render.c | 9 +++++++++
render.h | 1 +
2 files changed, 10 insertions(+)
diff --git a/render.c b/render.c
index f50dd04..f42673b 100644
--- a/render.c
+++ b/render.c
@@ -165,6 +165,15 @@ Colour col_scl(Colour a, unsigned char s) {
return r;
}
+Colour col_add(Colour a, Colour b) {
+ Colour r;
+ r.r = ((int)a.r + (int)b.r) & 0xff;
+ r.g = ((int)a.g + (int)b.g) & 0xff;
+ r.b = ((int)a.b + (int)b.b) & 0xff;
+ r.a = ((int)a.a + (int)b.a) & 0xff;
+ return r;
+}
+
void ren_begin(Renderer* r, Colour* t, int* d, int w, int h) {
r->t = t;
r->vp[0] = w;
diff --git a/render.h b/render.h
index fcce37e..74bcd7f 100644
--- a/render.h
+++ b/render.h
@@ -42,6 +42,7 @@ Colour blend(Colour dst, Colour src);
Colour blend_mod(Colour dst, Colour src, Colour mod);
Colour col_mul(Colour a, Colour b);
Colour col_scl(Colour a, unsigned char s);
+Colour col_add(Colour a, Colour b);
typedef struct {
Colour* p;
--
cgit v1.2.3-54-g00ecf