From f3d5b63b541d8048568f134403838213c77177e4 Mon Sep 17 00:00:00 2001
From: Stefan Dresselhaus <stefan@dresselhaus.cloud>
Date: Sat, 23 Jul 2022 02:34:10 +0200
Subject: [PATCH] flag use-ImDrawIdx32

---
 dear-imgui.hs     |  2 +-
 dear-implot.cabal | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/dear-imgui.hs b/dear-imgui.hs
index 4c9b76a..8d332a4 160000
--- a/dear-imgui.hs
+++ b/dear-imgui.hs
@@ -1 +1 @@
-Subproject commit 4c9b76aed5d009d0d263c82d76b3075524a3fbf8
+Subproject commit 8d332a49ea551973805678303128091d1007efd7
diff --git a/dear-implot.cabal b/dear-implot.cabal
index b07a583..8dba684 100644
--- a/dear-implot.cabal
+++ b/dear-implot.cabal
@@ -18,6 +18,17 @@ flag use-wchar32
   manual:
     True
 
+flag use-ImDrawIdx32
+  description:
+    Use 32-bit vertex indices (default is 16-bit) is one way to allow large meshes with more than 64K vertices.
+    Your renderer backend will need to support it (most example renderer backends support both 16/32-bit indices).
+    Another way to allow large meshes while keeping 16-bit indices is to handle ImDrawCmd::VtxOffset in your renderer.
+    Read about ImGuiBackendFlags_RendererHasVtxOffset for details.
+  default:
+    True
+  manual:
+    True
+
 library
   exposed-modules:
     DearImGui.Raw.Plot
@@ -61,9 +72,15 @@ library
   include-dirs:
     implot
     dear-imgui.hs/imgui
+
   if flag(use-wchar32)
     cxx-options: -DIMGUI_USE_WCHAR32
     cpp-options: -DIMGUI_USE_WCHAR32
+
+  if flag(use-ImDrawIdx32)
+    cxx-options: "-DImDrawIdx=unsigned int"
+    cpp-options: "-DImDrawIdx=unsigned int"
+
   build-depends: base
                , StateVar
                , containers