From f32df38048eaef6a95bcfae2ddc28e15b022cbb1 Mon Sep 17 00:00:00 2001
From: Alberto Mardegan <mardy@users.sourceforge.net>
Date: Thu, 16 Apr 2026 19:58:38 +0300
Subject: [PATCH] debug: add a new debug flag to log VBO usage

---
 src/arrays.cpp | 2 ++
 src/debug.c    | 1 +
 src/debug.h    | 1 +
 3 files changed, 4 insertions(+)

diff --git a/src/arrays.cpp b/src/arrays.cpp
index 23bb80b..919f0fc 100644
--- a/src/arrays.cpp
+++ b/src/arrays.cpp
@@ -794,6 +794,8 @@ OgxArrayReader *_ogx_array_add(uint8_t attribute, const OgxVertexAttribArray *ar
         /* No conversions needed, just dump the data from the array directly
          * into the GX pipe. */
         if (array->vbo) {
+            debug(OGX_LOG_VBO, "Using VBO %d for attr %d type %d, n=%d",
+                  array->vbo, info.format.attribute, info.format.size, array->size);
             new (reader) DirectVboReader(array->vbo, info.format, data, stride);
             return reader;
         }
diff --git a/src/debug.c b/src/debug.c
index bf2447f..e4ccf58 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -46,6 +46,7 @@ static const struct {
     { "texture", OGX_LOG_TEXTURE },
     { "stencil", OGX_LOG_STENCIL },
     { "shader", OGX_LOG_SHADER },
+    { "vbo", OGX_LOG_VBO },
     { NULL, 0 },
 };
 
diff --git a/src/debug.h b/src/debug.h
index 79f4566..edc4cd5 100644
--- a/src/debug.h
+++ b/src/debug.h
@@ -44,6 +44,7 @@ typedef enum {
     OGX_LOG_STENCIL = 1 << 4,
     OGX_LOG_CLIPPING = 1 << 5,
     OGX_LOG_SHADER = 1 << 6,
+    OGX_LOG_VBO = 1 << 7,
 } OgxLogMask;
 
 extern OgxLogMask _ogx_log_mask;