From 3f26c36458cd6a9569e26c13371b2d6c6d6ab89d Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Fri, 25 Dec 2020 18:45:09 -0500
Subject: [PATCH] direct: honor transparency in image blitting #1252

---
 src/lib/direct.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/lib/direct.cpp b/src/lib/direct.cpp
index 9c5e2c6ae..6e648424b 100644
--- a/src/lib/direct.cpp
+++ b/src/lib/direct.cpp
@@ -387,8 +387,16 @@ ncdirect_dump_plane(ncdirect* n, const ncplane* np, int xoff){
       if(egc == nullptr){
         return -1;
       }
-      ncdirect_fg_rgb(n, channels_fg_rgb(channels));
-      ncdirect_bg_rgb(n, channels_bg_rgb(channels));
+      if(channels_fg_alpha(channels) == CELL_ALPHA_TRANSPARENT){
+        ncdirect_fg_default(n);
+      }else{
+        ncdirect_fg_rgb(n, channels_fg_rgb(channels));
+      }
+      if(channels_bg_alpha(channels) == CELL_ALPHA_TRANSPARENT){
+        ncdirect_bg_default(n);
+      }else{
+        ncdirect_bg_rgb(n, channels_bg_rgb(channels));
+      }
 //fprintf(stderr, "%03d/%03d [%s] (%03dx%03d)\n", y, x, egc, dimy, dimx);
       if(fprintf(n->ttyfp, "%s", strlen(egc) == 0 ? " " : egc) < 0){
         free(egc);