Lines Matching refs:dtdx
417 _swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy, in _swrast_compute_lambda() argument
422 GLfloat dvdx = texH * ((t + dtdx) / (q + dqdx) - t * invQ); in _swrast_compute_lambda()
439 _swrast_compute_lambda(GLfloat dsdx, GLfloat dsdy, GLfloat dtdx, GLfloat dtdy,
444 GLfloat dtdx2 = (t + dtdx) / (q + dqdx) - t * invQ;
490 const GLfloat dtdx = span->attrStepX[attr][1]; in interpolate_texcoords() local
496 GLfloat t = span->attrStart[attr][1] + span->leftClip * dtdx; in interpolate_texcoords()
538 lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy, in interpolate_texcoords()
542 t += dtdx; in interpolate_texcoords()
555 lambda[i] = _swrast_compute_lambda(dsdx, dsdy, dtdx, dtdy, in interpolate_texcoords()
559 t += dtdx; in interpolate_texcoords()
581 t += dtdx; in interpolate_texcoords()
597 t += dtdx; in interpolate_texcoords()
610 t += dtdx; in interpolate_texcoords()