Add `_perspectiveWarping` flag to `QuadSurface`

src/Surfaces/QuadSurface.cpp

@@ -4,6 +4,7 @@ namespace ofx {
 namespace piMapper {
 
 QuadSurface::QuadSurface(){
+	_perspectiveWarping = false;
 	setup();
 }
 
@@ -78,22 +79,23 @@ void QuadSurface::draw(){
 		return;
 	}
 
-	/*if(mesh.haveVertsChanged() || mesh.haveTexCoordsChanged()){
+	if(mesh.haveVertsChanged() || mesh.haveTexCoordsChanged()){
 	    calculate4dTextureCoords();
-	}*/
-	/*
-	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-	glTexCoordPointer(4, GL_FLOAT, 0, quadTexCoordinates);
-	glVertexPointer(3, GL_FLOAT, 0, quadVertices);
-
-	source->getTexture()->bind();
-	glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, quadIndices);
-	source->getTexture()->unbind();
-	*/
-
-	source->getTexture()->bind();
-	mesh.draw();
-	source->getTexture()->unbind();
+	}
+	
+	if(_perspectiveWarping){
+		glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+		glTexCoordPointer(4, GL_FLOAT, 0, quadTexCoordinates);
+		glVertexPointer(3, GL_FLOAT, 0, quadVertices);
+
+		source->getTexture()->bind();
+		glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, quadIndices);
+		source->getTexture()->unbind();
+	}else{
+		source->getTexture()->bind();
+		mesh.draw();
+		source->getTexture()->unbind();
+	}
 }
 
 void QuadSurface::setVertex(int index, ofVec2f p){
@@ -281,5 +283,9 @@ void QuadSurface::calculate4dTextureCoords(){
 	quadTexCoordinates[15] = q3;
 }
 
+void QuadSurface::setPerspectiveWarping(bool b){
+	_perspectiveWarping = b;
+}
+
 } // namespace piMapper
 } // namespace ofx

src/Surfaces/QuadSurface.h

@@ -35,12 +35,16 @@ class QuadSurface : public BaseSurface {
 		ofPolyline getTextureHitArea();
 		vector <ofVec3f> & getVertices();
 		vector <ofVec2f> & getTexCoords();
+	
+		void setPerspectiveWarping(bool b);
 
 	private:
 		void calculate4dTextureCoords();
 		GLfloat quadVertices[12];
 		GLubyte quadIndices[6];
 		GLfloat quadTexCoordinates[16];
+		
+		bool _perspectiveWarping;
 
 };