From 34663eccd93d1910243e53abbe41ed34cfdfa771 Mon Sep 17 00:00:00 2001
From: Filippo Argiolas <filippo.argiolas@gmail.com>
Date: Sat, 20 Sep 2008 14:12:49 +0200
Subject: [PATCH] [228/906] output shaders info log only if GST_GL_SHADER_DEBUG
 env variable is set. Should fix TODO task 18

---
 gst-libs/gst/gl/gstglshader.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/gst-libs/gst/gl/gstglshader.c b/gst-libs/gst/gl/gstglshader.c
index fee9dc7d4a..57cd1e616a 100644
--- a/gst-libs/gst/gl/gstglshader.c
+++ b/gst-libs/gst/gl/gstglshader.c
@@ -51,6 +51,11 @@ struct _GstGLShaderPrivate
 
 G_DEFINE_TYPE (GstGLShader, gst_gl_shader, G_TYPE_OBJECT);
 
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "GstGLShader"
+
+gboolean _gst_gl_shader_debug = FALSE;
+
 static void
 gst_gl_shader_finalize (GObject * object)
 {
@@ -126,6 +131,15 @@ gst_gl_shader_get_property (GObject * object,
 
 }
 
+static void
+gst_gl_shader_log_handler (const gchar *domain, GLogLevelFlags flags,
+                           const gchar *message, gpointer user_data)
+{
+  if (_gst_gl_shader_debug) {
+    g_log_default_handler (domain, flags, message, user_data);
+  }
+}
+
 static void
 gst_gl_shader_class_init (GstGLShaderClass * klass)
 {
@@ -230,6 +244,12 @@ gst_gl_shader_init (GstGLShader * self)
 
   priv->compiled = FALSE;
   priv->active = FALSE;         // unused at the moment
+
+  if (g_getenv ("GST_GL_SHADER_DEBUG"))
+    _gst_gl_shader_debug = TRUE;
+
+  g_log_set_handler ("GstGLShader", G_LOG_LEVEL_DEBUG,
+                     gst_gl_shader_log_handler, NULL);
 }
 
 GstGLShader *