Lines Matching refs:dtdy
414 _swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy,
421 GLfloat dvdy = texH * ((t + dtdy) / (q + dqdy) - t * invQ);
436 _swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy,
443 GLfloat dtdy2 = (t + dtdy) / (q + dqdy) - t * invQ;
488 const GLfloat dtdy = span->attrStepY[attr][1];
535 lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy,
552 lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy,
