LibGL: Add stub `glClipPlane`

4 files changed, 27 insertions, 1 deletions

diff --git a/Userland/Libraries/LibGL/GL/gl.h b/Userland/Libraries/LibGL/GL/gl.h
index 0b9ecc1f2c..4956561d1c 100644
--- a/Userland/Libraries/LibGL/GL/gl.h
+++ b/Userland/Libraries/LibGL/GL/gl.h
@@ -477,6 +477,14 @@ extern "C" {
 
 #define GL_ADD 0x0104
 
+// User clipping planes
+#define GL_CLIP_PLANE0 0x3000
+#define GL_CLIP_PLANE1 0x3001
+#define GL_CLIP_PLANE2 0x3002
+#define GL_CLIP_PLANE3 0x3003
+#define GL_CLIP_PLANE4 0x3004
+#define GL_CLIP_PLANE5 0x3005
+
 GLAPI void glBegin(GLenum mode);
 GLAPI void glClear(GLbitfield mask);
 GLAPI void glClearColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
@@ -670,6 +678,7 @@ GLAPI void glRectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2);
 GLAPI void glRecti(GLint x1, GLint y1, GLint x2, GLint y2);
 GLAPI void glGetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint* params);
 GLAPI void glPointSize(GLfloat size);
+GLAPI void glClipPlane(GLenum plane, GLdouble const* equation);
 
 #ifdef __cplusplus
 }
diff --git a/Userland/Libraries/LibGL/GLContext.cpp b/Userland/Libraries/LibGL/GLContext.cpp
index c34b167ac5..1d48651fbc 100644
--- a/Userland/Libraries/LibGL/GLContext.cpp
+++ b/Userland/Libraries/LibGL/GLContext.cpp
@@ -1936,6 +1936,16 @@ void GLContext::gl_depth_mask(GLboolean flag)
     m_rasterizer->set_options(options);
 }
 
+void GLContext::gl_clip_plane(GLenum plane, [[maybe_unused]] GLdouble const* equation)
+{
+    APPEND_TO_CALL_LIST_AND_RETURN_IF_NEEDED(gl_clip_plane, plane, equation);
+
+    RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
+    RETURN_WITH_ERROR_IF((plane < GL_CLIP_PLANE0) || (plane > GL_CLIP_PLANE5), GL_INVALID_ENUM);
+
+    dbgln_if(GL_DEBUG, "GLContext FIXME: implement gl_clip_plane() (equation = [{} {} {} {}])", equation[0], equation[1], equation[2], equation[3]);
+}
+
 void GLContext::gl_enable_client_state(GLenum cap)
 {
     RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
diff --git a/Userland/Libraries/LibGL/GLContext.h b/Userland/Libraries/LibGL/GLContext.h
index 20ebfb9de4..964040b5ee 100644
--- a/Userland/Libraries/LibGL/GLContext.h
+++ b/Userland/Libraries/LibGL/GLContext.h
@@ -156,6 +156,7 @@ public:
     void gl_color_material(GLenum face, GLenum mode);
     void gl_get_light(GLenum light, GLenum pname, void* params, GLenum type);
     void gl_get_material(GLenum face, GLenum pname, void* params, GLenum type);
+    void gl_clip_plane(GLenum plane, GLdouble const* equation);
     void present();
 
 private:
@@ -396,7 +397,8 @@ private:
             decltype(&GLContext::gl_materialfv),
             decltype(&GLContext::gl_materialiv),
             decltype(&GLContext::gl_color_material),
-            decltype(&GLContext::gl_get_light)>;
+            decltype(&GLContext::gl_get_light),
+            decltype(&GLContext::gl_clip_plane)>;
 
         using ExtraSavedArguments = Variant<
             FloatMatrix4x4>;
diff --git a/Userland/Libraries/LibGL/GLUtils.cpp b/Userland/Libraries/LibGL/GLUtils.cpp
index c5cf954be1..ba76700151 100644
--- a/Userland/Libraries/LibGL/GLUtils.cpp
+++ b/Userland/Libraries/LibGL/GLUtils.cpp
@@ -189,3 +189,8 @@ void glPopAttrib()
 {
     g_gl_context->gl_pop_attrib();
 }
+
+void glClipPlane(GLenum plane, GLdouble const* equation)
+{
+    g_gl_context->gl_clip_plane(plane, equation);
+}