From b59d3f6d08f99d587409603a9dc672f03a4f46d0 Mon Sep 17 00:00:00 2001
From: Andre Weissflog <floooh@gmail.com>
Date: Fri, 5 Dec 2025 20:54:11 +0100
Subject: sokol_imgui.h: add log message when internal vertex or index buffer
 overflows (fixes #1387)

---
 util/sokol_imgui.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'util')

diff --git a/util/sokol_imgui.h b/util/sokol_imgui.h
index 89c47890..670a342e 100644
--- a/util/sokol_imgui.h
+++ b/util/sokol_imgui.h
@@ -458,6 +458,7 @@ extern "C" {
 #define _SIMGUI_LOG_ITEMS \
     _SIMGUI_LOGITEM_XMACRO(OK, "Ok") \
     _SIMGUI_LOGITEM_XMACRO(MALLOC_FAILED, "memory allocation failed") \
+    _SIMGUI_LOGITEM_XMACRO(BUFFER_OVERFLOW, "internal vertex/index buffer overflow (increase simgui_desc_t.max_vertices)")
 
 #define _SIMGUI_LOGITEM_XMACRO(item,msg) SIMGUI_LOGITEM_##item,
 typedef enum simgui_log_item_t {
@@ -3201,6 +3202,7 @@ SOKOL_API_IMPL void simgui_render(void) {
         if (((all_vtx_size + vtx_size) > _simgui.vertices.size) ||
             ((all_idx_size + idx_size) > _simgui.indices.size))
         {
+            _SIMGUI_ERROR(BUFFER_OVERFLOW);
             break;
         }
 
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