[OpenGL] Same for depth mask

include/gl_state.hpp

@@ -22,8 +22,9 @@ struct GLStateManager {
 	bool depthEnabled;
 	bool scissorEnabled;
 
-	// Colour mask
+	// Colour/depth masks
 	bool redMask, greenMask, blueMask, alphaMask;
+	bool depthMask;
 
 	GLuint boundVAO;
 	GLuint boundVBO;
@@ -108,7 +109,14 @@ struct GLStateManager {
 			b = blueMask;
 			a = alphaMask;
 
-			glColorMask(r, g, b, a);
+			OpenGL::setColourMask(r, g, b, a);
+		}
+	}
+
+	void setDepthMask(bool mask) {
+		if (depthMask != mask) {
+			depthMask = mask;
+			OpenGL::setDepthMask(mask);
 		}
 	}
 

include/opengl.hpp

@@ -528,6 +528,8 @@ namespace OpenGL {
 	static void disableClipPlane(GLuint index) { glDisable(GL_CLIP_DISTANCE0 + index); }
 
     static void setDepthFunc(DepthFunc func) { glDepthFunc(static_cast<GLenum>(func)); }
+	static void setColourMask(GLboolean r, GLboolean g, GLboolean b, GLboolean a) { glColorMask(r, g, b, a); }
+	static void setDepthMask(GLboolean mask) { glDepthMask(mask); }
 
     enum Primitives {
         Triangle = GL_TRIANGLES,