From 868250d1964591cba826669e408285d52e14cf28 Mon Sep 17 00:00:00 2001
From: Timothy Schoen <timschoen123@gmail.com>
Date: Fri, 27 Sep 2024 01:54:10 +0200
Subject: [PATCH] Fix bug in pd-vanilla implementation

---
 Makefile    | 2 +-
 pdlua_gfx.h | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 4d35806..739aeb1 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,7 @@ luaflags += -DLUA_USE_WINDOWS
 endef
 endif
 
-cflags = ${luaflags} -DPDLUA_VERSION="$(pdlua_version)" -fsanitize=address -g
+cflags = ${luaflags} -DPDLUA_VERSION="$(pdlua_version)"
 
 pdlua.class.sources := pdlua.c $(luasrc)
 pdlua.class.ldlibs := $(lualibs)
diff --git a/pdlua_gfx.h b/pdlua_gfx.h
index 43c00fd..9d7a1c0 100644
--- a/pdlua_gfx.h
+++ b/pdlua_gfx.h
@@ -812,7 +812,9 @@ static int start_paint(lua_State* L) {
     int layer = luaL_checknumber(L, 2);
     if(layer >= gfx->num_layers)
     {
-        gfx->layer_tags = resizebytes(gfx->layer_tags, sizeof(char*) * gfx->num_layers, sizeof(char*) * ++gfx->num_layers);
+        int new_num_layers = layer + 1;
+        gfx->layer_tags = resizebytes(gfx->layer_tags, sizeof(char*) * gfx->num_layers, sizeof(char*) * new_num_layers);
+        gfx->num_layers = new_num_layers;
         gfx->layer_tags[layer] = malloc(64);
         snprintf(gfx->layer_tags[layer], 64, ".l%i%lx", layer, (long)obj);
     }