From d06ad43dca38913168f8dccc98d85813dc094023 Mon Sep 17 00:00:00 2001
From: ocornut <omarcornut@gmail.com>
Date: Tue, 16 Jun 2015 17:50:55 -0600
Subject: [PATCH] ImFont::RenderText() additional early out (typically
 performed at TextUnformatted() level for large chunks but this is also
 useful) (#200)

---
 imgui.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/imgui.cpp b/imgui.cpp
index e4c102ed..b0eaa6b0 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -10092,8 +10092,10 @@ void ImFont::RenderText(float size, ImVec2 pos, ImU32 col, const ImVec4& clip_re
             {
                 // Clipping on Y is more likely
                 float y1 = (float)(y + glyph->YOffset * scale);
+                if (y1 > clip_rect.w)
+                    break;
                 float y2 = (float)(y1 + glyph->Height * scale);
-                if (y1 <= clip_rect.w && y2 >= clip_rect.y) // FIMXE-OPT: could fast-forward until next line
+                if (y2 >= clip_rect.y) // FIMXE-OPT: could fast-forward until next line (without breaking word-wrapping)
                 {
                     float x1 = (float)(x + glyph->XOffset * scale);
                     float x2 = (float)(x1 + glyph->Width * scale);