Lines Matching defs:alpha
491 return formats.alpha;
565 * alpha channel of MRT0 when alpha coverage is enabled because
4158 nir_ssa_def *alpha)
4161 alpha = nir_f2u32(b, alpha);
4170 alpha = nir_ibfe_imm(b, alpha, offset, 2u);
4174 alpha = nir_i2f32(b, alpha);
4175 alpha = nir_fmax(b, alpha, nir_imm_float(b, -1.0f));
4177 alpha = nir_i2f32(b, alpha);
4180 return alpha;
6979 * memory is allocated, so KILL and alpha test do not work correctly