164 …RandomViewport			viewport			(m_renderCtx.getRenderTarget(), VIEWPORT_WIDTH, VIEWPORT_HEIGHT, deStr…  in iterate()  local
165 	tcu::Surface			renderedFrame		(viewport.width, viewport.height);  in iterate()
166 	tcu::Surface			referenceFrame		(viewport.width, viewport.height);  in iterate()
169 	int						leftWidth			= viewport.width / 2;  in iterate()
170 	int						rightWidth			= viewport.width - leftWidth;  in iterate()
193 		gl.viewport(viewport.x, viewport.y, leftWidth, viewport.height);  in iterate()
198 		glu::readPixels(m_renderCtx, viewport.x, viewport.y, renderedFrame.getAccess());  in iterate()
200 …(referenceFrame, m_renderCtx.getRenderTarget().getPixelFormat(), 0, 0, leftWidth, viewport.height),  in iterate()
206 		gl.viewport(viewport.x+leftWidth, viewport.y, rightWidth, viewport.height);  in iterate()
211 		glu::readPixels(m_renderCtx, viewport.x, viewport.y, renderedFrame.getAccess());  in iterate()
213 …eFrame, m_renderCtx.getRenderTarget().getPixelFormat(), leftWidth, 0, rightWidth, viewport.height),  in iterate()