Searched refs:dwdx (Results 1 – 3 of 3) sorted by relevance
1649 ci.ydwdy = interpolate(ys, c->shade.w0, c->shade.dwdx, c->shade.dwdy); in init_y()1918 int32_t w0 = (xs * c->shade.dwdx) + ci.ydwdy; in scanline_perspective()1922 const int32_t dwdx = c->shade.dwdx << SPAN_BITS; in scanline_perspective() local1947 w1 = w0 + dwdx; in scanline_perspective()1952 w1 = (c->shade.dwdx * span) + w0; in scanline_perspective()2007 int32_t w = (xs * c->shade.dwdx) + ci.ydwdy; in scanline_perspective_single()2030 if (c->shade.dwdx == 0) { in scanline_perspective_single()2038 w += c->shade.dwdx * premainder; in scanline_perspective_single()2053 w += c->shade.dwdx << SPAN_BITS; in scanline_perspective_single()
264 c->shade.dwdx = grad[1]; in ggl_wGrad3xv()
471 GGLfixed dwdx;