gistfile1.cpp

      ID3D1X(PixelShader) *program = gdraw->fprog[which][additive].pshader;
      if (r->stencil_set) {
         // in stencil set mode, prefer not doing any shading at all
         // but if alpha test is on, we need to make an exception

#ifndef GDRAW_D3D11_LEVEL9 // level9 can't do NULL PS it seems
         if (which != GDRAW_TEXTURE_alpha_test)
            program = NULL;
         else
#endif
         {
            gdraw->blend_mode = -1;
            d3d->OMSetBlendState(gdraw->blend_no_color_write, four_zeros, ~0u);
         }
      }