From e8fabb58a66b6675f3e8bcfeef1f85f96e7cab3b Mon Sep 17 00:00:00 2001
From: Alex Shvartzkop <dudesuchamazing@gmail.com>
Date: Sun, 31 Dec 2023 14:09:28 +0500
Subject: [PATCH] Fix bitmap Z order in OpenGL GAL.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/16482
---
 common/gal/opengl/opengl_gal.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/common/gal/opengl/opengl_gal.cpp b/common/gal/opengl/opengl_gal.cpp
index e1e309a123..7cdfc20555 100644
--- a/common/gal/opengl/opengl_gal.cpp
+++ b/common/gal/opengl/opengl_gal.cpp
@@ -1490,7 +1490,7 @@ void OPENGL_GAL::DrawBitmap( const BITMAP_BASE& aBitmap, double alphaBlend )
     if( !glIsTexture( texture_id ) ) // ensure the bitmap texture is still valid
         return;
 
-    glDisable( GL_DEPTH_TEST );
+    glDepthFunc( GL_ALWAYS );
 
     glMatrixMode( GL_TEXTURE );
     glPushMatrix();
@@ -1538,7 +1538,7 @@ void OPENGL_GAL::DrawBitmap( const BITMAP_BASE& aBitmap, double alphaBlend )
     glPopMatrix();
     glMatrixMode( GL_MODELVIEW );
 
-    glEnable( GL_DEPTH_TEST );
+    glDepthFunc( GL_LESS );
 }