diff --git a/Userland/Libraries/LibGL/GL/gl.h b/Userland/Libraries/LibGL/GL/gl.h
index 8cf5b85155..7205a63944 100644
--- a/Userland/Libraries/LibGL/GL/gl.h
+++ b/Userland/Libraries/LibGL/GL/gl.h
@@ -354,6 +354,8 @@ GLAPI void glBindTexture(GLenum target, GLuint texture);
 GLAPI void glActiveTexture(GLenum texture);
 GLAPI void glGetFloatv(GLenum pname, GLfloat* params);
 GLAPI void glDepthMask(GLboolean flag);
+GLAPI void glEnableClientState(GLenum cap);
+GLAPI void glDisableClientState(GLenum cap);
 
 #ifdef __cplusplus
 }
diff --git a/Userland/Libraries/LibGL/GLContext.h b/Userland/Libraries/LibGL/GLContext.h
index f518e8ab47..e542c50816 100644
--- a/Userland/Libraries/LibGL/GLContext.h
+++ b/Userland/Libraries/LibGL/GLContext.h
@@ -64,6 +64,8 @@ public:
     virtual void gl_active_texture(GLenum texture) = 0;
     virtual void gl_get_floatv(GLenum pname, GLfloat* params) = 0;
     virtual void gl_depth_mask(GLboolean flag) = 0;
+    virtual void gl_enable_client_state(GLenum cap) = 0;
+    virtual void gl_disable_client_state(GLenum cap) = 0;
 
     virtual void present() = 0;
 };
diff --git a/Userland/Libraries/LibGL/GLUtils.cpp b/Userland/Libraries/LibGL/GLUtils.cpp
index bdd374a410..77abfd8d11 100644
--- a/Userland/Libraries/LibGL/GLUtils.cpp
+++ b/Userland/Libraries/LibGL/GLUtils.cpp
@@ -94,3 +94,13 @@ void glDepthMask(GLboolean flag)
 {
     g_gl_context->gl_depth_mask(flag);
 }
+
+void glEnableClientState(GLenum cap)
+{
+    g_gl_context->gl_enable_client_state(cap);
+}
+
+void glDisableClientState(GLenum cap)
+{
+    g_gl_context->gl_disable_client_state(cap);
+}
diff --git a/Userland/Libraries/LibGL/SoftwareGLContext.cpp b/Userland/Libraries/LibGL/SoftwareGLContext.cpp
index c50fece334..c87e5016a2 100644
--- a/Userland/Libraries/LibGL/SoftwareGLContext.cpp
+++ b/Userland/Libraries/LibGL/SoftwareGLContext.cpp
@@ -1403,6 +1403,50 @@ void SoftwareGLContext::gl_depth_mask(GLboolean flag)
     m_rasterizer.set_options(options);
 }
 
+void SoftwareGLContext::gl_enable_client_state(GLenum cap)
+{
+    RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
+
+    switch (cap) {
+    case GL_VERTEX_ARRAY:
+        m_client_side_vertex_array_enabled = true;
+        break;
+
+    case GL_COLOR_ARRAY:
+        m_client_side_color_array_enabled = true;
+        break;
+
+    case GL_TEXTURE_COORD_ARRAY:
+        m_client_side_texture_coord_array_enabled = true;
+        break;
+
+    default:
+        RETURN_WITH_ERROR_IF(true, GL_INVALID_ENUM);
+    }
+}
+
+void SoftwareGLContext::gl_disable_client_state(GLenum cap)
+{
+    RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
+
+    switch (cap) {
+    case GL_VERTEX_ARRAY:
+        m_client_side_vertex_array_enabled = false;
+        break;
+
+    case GL_COLOR_ARRAY:
+        m_client_side_color_array_enabled = false;
+        break;
+
+    case GL_TEXTURE_COORD_ARRAY:
+        m_client_side_texture_coord_array_enabled = false;
+        break;
+
+    default:
+        RETURN_WITH_ERROR_IF(true, GL_INVALID_ENUM);
+    }
+}
+
 void SoftwareGLContext::present()
 {
     m_rasterizer.blit_to(*m_frontbuffer);
diff --git a/Userland/Libraries/LibGL/SoftwareGLContext.h b/Userland/Libraries/LibGL/SoftwareGLContext.h
index 02dade49ed..b2a75fabd3 100644
--- a/Userland/Libraries/LibGL/SoftwareGLContext.h
+++ b/Userland/Libraries/LibGL/SoftwareGLContext.h
@@ -74,6 +74,8 @@ public:
     virtual void gl_active_texture(GLenum texture) override;
     virtual void gl_get_floatv(GLenum pname, GLfloat* params) override;
     virtual void gl_depth_mask(GLboolean flag) override;
+    virtual void gl_enable_client_state(GLenum cap) override;
+    virtual void gl_disable_client_state(GLenum cap) override;
 
     virtual void present() override;
 
@@ -134,6 +136,11 @@ private:
 
     GLenum m_current_read_buffer = GL_BACK;
 
+    // Client side arrays
+    bool m_client_side_vertex_array_enabled = false;
+    bool m_client_side_color_array_enabled = false;
+    bool m_client_side_texture_coord_array_enabled = false;
+
     NonnullRefPtr<Gfx::Bitmap> m_frontbuffer;
 
     Clipper m_clipper;