Searched refs:dwdx (Results 1 – 3 of 3) sorted by relevance
1610 ci.ydwdy = interpolate(ys, c->shade.w0, c->shade.dwdx, c->shade.dwdy); in init_y()1879 int32_t w0 = (xs * c->shade.dwdx) + ci.ydwdy; in scanline_perspective()1883 const int32_t dwdx = c->shade.dwdx << SPAN_BITS; in scanline_perspective() local1908 w1 = w0 + dwdx; in scanline_perspective()1913 w1 = (c->shade.dwdx * span) + w0; in scanline_perspective()1968 int32_t w = (xs * c->shade.dwdx) + ci.ydwdy; in scanline_perspective_single()1991 if (c->shade.dwdx == 0) { in scanline_perspective_single()1999 w += c->shade.dwdx * premainder; in scanline_perspective_single()2014 w += c->shade.dwdx << SPAN_BITS; in scanline_perspective_single()
264 c->shade.dwdx = grad[1]; in ggl_wGrad3xv()
449 GGLfixed dwdx;