LibGL: Add stubs for glPushAttrib and glPopAttrib

Userland/Libraries/LibGL/GL/gl.h

@@ -468,6 +468,8 @@ GLAPI void glRasterPos2i(GLint x, GLint y);
 GLAPI void glMaterialf(GLenum face, GLenum pname, GLfloat param);
 GLAPI void glMaterialfv(GLenum face, GLenum pname, GLfloat const* params);
 GLAPI void glLineWidth(GLfloat width);
+GLAPI void glPushAttrib(GLbitfield mask);
+GLAPI void glPopAttrib();
 
 #ifdef __cplusplus
 }

Userland/Libraries/LibGL/GLContext.h

@@ -99,6 +99,8 @@ public:
     virtual void gl_raster_pos(GLfloat x, GLfloat y, GLfloat z, GLfloat w) = 0;
     virtual void gl_materialv(GLenum face, GLenum pname, GLfloat const* params) = 0;
     virtual void gl_line_width(GLfloat width) = 0;
+    virtual void gl_push_attrib(GLbitfield mask) = 0;
+    virtual void gl_pop_attrib() = 0;
 
     virtual void present() = 0;
 };

Userland/Libraries/LibGL/GLUtils.cpp

@@ -164,3 +164,13 @@ void glScissor(GLint x, GLint y, GLsizei width, GLsizei height)
 {
     g_gl_context->gl_scissor(x, y, width, height);
 }
+
+void glPushAttrib(GLbitfield mask)
+{
+    g_gl_context->gl_push_attrib(mask);
+}
+
+void glPopAttrib()
+{
+    g_gl_context->gl_pop_attrib();
+}

Userland/Libraries/LibGL/SoftwareGLContext.cpp

@@ -2327,6 +2327,24 @@ void SoftwareGLContext::gl_line_width(GLfloat width)
     m_line_width = width;
 }
 
+void SoftwareGLContext::gl_push_attrib(GLbitfield mask)
+{
+    APPEND_TO_CALL_LIST_AND_RETURN_IF_NEEDED(gl_push_attrib, mask);
+    RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
+
+    // FIXME: implement
+    dbgln_if(GL_DEBUG, "SoftwareGLContext FIXME: implement gl_push_attrib({})", mask);
+}
+
+void SoftwareGLContext::gl_pop_attrib()
+{
+    APPEND_TO_CALL_LIST_AND_RETURN_IF_NEEDED(gl_pop_attrib);
+    RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
+
+    // FIXME: implement
+    dbgln_if(GL_DEBUG, "SoftwareGLContext FIXME: implement gl_pop_attrib()");
+}
+
 void SoftwareGLContext::present()
 {
     m_rasterizer.blit_to(*m_frontbuffer);

Userland/Libraries/LibGL/SoftwareGLContext.h

@@ -110,6 +110,8 @@ public:
     virtual void gl_raster_pos(GLfloat x, GLfloat y, GLfloat z, GLfloat w) override;
     virtual void gl_materialv(GLenum face, GLenum pname, GLfloat const* params) override;
     virtual void gl_line_width(GLfloat width) override;
+    virtual void gl_push_attrib(GLbitfield mask) override;
+    virtual void gl_pop_attrib() override;
     virtual void present() override;
 
 private:
@@ -280,7 +282,9 @@ private:
             decltype(&SoftwareGLContext::gl_normal),
             decltype(&SoftwareGLContext::gl_raster_pos),
             decltype(&SoftwareGLContext::gl_materialv),
-            decltype(&SoftwareGLContext::gl_line_width)>;
+            decltype(&SoftwareGLContext::gl_line_width),
+            decltype(&SoftwareGLContext::gl_push_attrib),
+            decltype(&SoftwareGLContext::gl_pop_attrib)>;
 
         using ExtraSavedArguments = Variant<
             FloatMatrix4x4>;