Lines Matching refs:dtdx
418 _swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy, in _swrast_compute_lambda() argument
423 GLfloat dvdx = texH * ((t + dtdx) / (q + dqdx) - t * invQ); in _swrast_compute_lambda()
440 _swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy,
445 GLfloat dtdx2 = (t + dtdx) / (q + dqdx) - t * invQ;
491 const GLfloat dtdx = span->attrStepX[attr][1]; in interpolate_texcoords() local
497 GLfloat t = span->attrStart[attr][1] + span->leftClip * dtdx; in interpolate_texcoords()
539 lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy, in interpolate_texcoords()
543 t += dtdx; in interpolate_texcoords()
556 lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy, in interpolate_texcoords()
560 t += dtdx; in interpolate_texcoords()
582 t += dtdx; in interpolate_texcoords()
598 t += dtdx; in interpolate_texcoords()
611 t += dtdx; in interpolate_texcoords()