rgtc1u_gray_block  445 libavcodec/hapdec.c         ctx->tex_fun = ctx->dxtc.rgtc1u_gray_block;
rgtc1u_gray_block  649 libavcodec/texturedsp.c     c->rgtc1u_gray_block  = rgtc1u_gray_block;
rgtc1u_gray_block   56 libavcodec/texturedsp.h     int (*rgtc1u_gray_block) (uint8_t *dst, ptrdiff_t stride, const uint8_t *block);