X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fbcwindow3d.C;h=59a21d8eb16059683572644ac430038c3570b32f;hb=83b70dd60863377cb281e6be5206304e10373e30;hp=902f65e9b17263b95f4f3ca87f7dc800724700d9;hpb=7ead9f7382846e81c2f8efb25780014e5f8834c3;p=goodguy%2Fcinelerra.git

diff --git a/cinelerra-5.1/guicast/bcwindow3d.C b/cinelerra-5.1/guicast/bcwindow3d.C
index 902f65e9..59a21d8e 100644
--- a/cinelerra-5.1/guicast/bcwindow3d.C
+++ b/cinelerra-5.1/guicast/bcwindow3d.C
@@ -192,9 +192,32 @@ bool BC_WindowBase::glx_make_current(GLXDrawable draw, GLXContext glx_ctxt)
 	return glXMakeContextCurrent(get_display(), draw, draw, glx_ctxt);
 }
 
+//#define GL_BUG
+#ifdef GL_BUG
+static void GLAPIENTRY glDebugCallback(GLenum source, GLenum type,
+	GLuint id, GLenum severity, GLsizei length, const GLchar* message,
+	const void* userParam)
+{
+	if( type == GL_DEBUG_TYPE_OTHER &&
+	    severity == GL_DEBUG_SEVERITY_NOTIFICATION ) return;
+	fprintf(stderr, "GL CALLBACK: %s type = 0x%x, severity = 0x%x, message = %s\n",
+		( type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR **" : "" ),
+		type, severity, message );
+}
+#endif
+
 bool BC_WindowBase::glx_make_current(GLXDrawable draw)
 {
-	return glx_make_current(draw, glx_win_context);
+	bool ret = glx_make_current(draw, glx_win_context);
+#ifdef GL_BUG
+	//Enabling OpenGL debug output
+	glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, 0, GL_TRUE);
+	glEnable(GL_DEBUG_OUTPUT);
+	glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
+	glDebugMessageCallback(glDebugCallback, 0);
+	glEnable(GL_DEBUG_OUTPUT);
+#endif
+	return ret;
 }
 
 #endif