diff --git a/src/drawcontext.cpp b/src/drawcontext.cpp
index 12dc61e..54f7a53 100644
--- a/src/drawcontext.cpp
+++ b/src/drawcontext.cpp
@@ -786,6 +786,13 @@ void glDrawBuffer(GLenum mode)
     mNotImplemented();
 }
 
+void glReadBuffer(GLenum mode)
+{
+    GL_FUNC_DEBUG("%s(0x%x)\n", __FUNCTION__, mode);
+
+    mNotImplemented();
+}
+
 void glClipPlane(GLenum plane, const GLdouble* equation)
 {
     GL_FUNC_DEBUG("%s(0x%x,%f)\n", __FUNCTION__, plane, equation);
@@ -885,6 +892,20 @@ void glPolygonMode(GLenum face, GLenum mode)
     drawContext.SetPolygonMode(mode);
 }
 
+void glPolygonOffset(GLfloat factor, GLfloat units)
+{
+    GL_FUNC_DEBUG("%s\n", __FUNCTION__);
+
+    mNotImplemented();
+}
+
+void glGetPolygonStipple(GLubyte* mask)
+{
+    GL_FUNC_DEBUG("%s\n", __FUNCTION__);
+
+    mNotImplemented();
+}
+
 /********************************************
  * ps2gl api
  */
diff --git a/src/lighting.cpp b/src/lighting.cpp
index 5b6c283..555760a 100644
--- a/src/lighting.cpp
+++ b/src/lighting.cpp
@@ -457,6 +457,13 @@ void glGetLightfv(GLenum light, GLenum pname, float* params)
     mNotImplemented();
 }
 
+void glFogi(GLenum pname, GLfloat param)
+{
+    GL_FUNC_DEBUG("%s\n", __FUNCTION__);
+
+    mNotImplemented();
+}
+
 void glFogf(GLenum pname, GLfloat param)
 {
     GL_FUNC_DEBUG("%s\n", __FUNCTION__);
@@ -470,3 +477,10 @@ void glFogfv(GLenum pname, const GLfloat* params)
 
     mNotImplemented();
 }
+
+void glFogiv(GLenum pname, const GLint* params)
+{
+    GL_FUNC_DEBUG("%s\n", __FUNCTION__);
+
+    mNotImplemented();
+}