From b09ef8705e360c73ff18a9d91290ec8cdd6e540c Mon Sep 17 00:00:00 2001
From: glepnir <glephunter@gmail.com>
Date: Mon, 6 May 2024 19:12:06 +0800
Subject: [PATCH] only render visible part of screen

---
 lua/indentmini/init.lua | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lua/indentmini/init.lua b/lua/indentmini/init.lua
index c721324..a4a05c8 100644
--- a/lua/indentmini/init.lua
+++ b/lua/indentmini/init.lua
@@ -117,6 +117,11 @@ local function on_line(_, _, bufnr, row)
         if erow < 1 then
           return
         end
+        -- only render visible part of screen
+        local toprow = vim.fn.line('w0') - 2
+        local botrow = vim.fn.line('w$') - 1
+        srow = math.max(math.max(toprow, srow), 0)
+        erow = math.max(math.min(botrow, erow), api.nvim_buf_line_count(data.buf) - 1)
         local level = math.floor(curindent / shiftw)
         for i = srow + 1, erow, 1 do
           api.nvim_set_hl(