evg_stencil_set_alpha  277 modules/soft_raster/rast_soft.h GF_Err evg_stencil_set_alpha(GF_STENCIL st, u8 alpha);
evg_stencil_set_alpha   46 modules/soft_raster/raster_load.c 	dr->stencil_set_alpha = evg_stencil_set_alpha;