28   uint8_t* const y_dst = buf->y + (size_t)io->mb_y * buf->y_stride;  in EmitYUV()
29   uint8_t* const u_dst = buf->u + (size_t)(io->mb_y >> 1) * buf->u_stride;  in EmitYUV()
30   uint8_t* const v_dst = buf->v + (size_t)(io->mb_y >> 1) * buf->v_stride;  in EmitYUV()
45   uint8_t* const dst = buf->rgba + (size_t)io->mb_y * buf->stride;  in EmitSampledRGB()
60   uint8_t* dst = buf->rgba + (size_t)io->mb_y * buf->stride;  in EmitFancyRGB()
67   int y = io->mb_y;  in EmitFancyRGB()
68   const int y_end = io->mb_y + io->mb_h;  in EmitFancyRGB()
131   uint8_t* dst = buf->a + (size_t)io->mb_y * buf->a_stride;  in EmitAlphaYUV()
150   int start_y = io->mb_y;  in GetAlphaSourceRow()
166     if (io->crop_top + io->mb_y + io->mb_h == io->crop_bottom) {  in GetAlphaSourceRow()
468       const int64_t row_offset = (int64_t)scaler->src_y - io->mb_y;  in EmitRescaledAlphaRGB()
469       WebPRescalerImport(scaler, io->mb_h + io->mb_y - scaler->src_y,  in EmitRescaledAlphaRGB()
613   assert(!(io->mb_y & 1));  in CustomPut()